[U-Boot] [PATCH v8 01/10] nds32: add header files support for nds32
Add generic header files support for nds32 architecture. Cache, ptrace, data type and other definitions are included.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- Changes for v1-v4: - Code cleanup and style formatting.
Changes for v5-v6: - This patch also updated the following changes against the change after master tree (v2010.12-rc1). - fix upper case definitions in cache.h - Support GD_FLG_ENV_READY and env_buf vars in nds32 global_data.h. - Add readsb, writesb functions into io.h.
Changes for v7: - clean up - volatile: - types.h - remove typedef volatile unsigned char vuchar; - remove typedef volatile unsigned long vulong; - remove typedef volatile unsigned short vushort; - u-boot.h: remove bd_info_ext bi_ext - bitops.h: add accessor function to bit operation with volatile var. - system.h: add system.h for local_irq operation with flag.
Changes for v8: - ptrace.h: rewrite the pt_reg structure, and merge ptregs.h. - ptregs.h: removed
arch/nds32/include/asm/bitops.h | 186 +++++++++++++++ arch/nds32/include/asm/byteorder.h | 36 +++ arch/nds32/include/asm/cache.h | 54 +++++ arch/nds32/include/asm/config.h | 26 ++ arch/nds32/include/asm/global_data.h | 82 +++++++ arch/nds32/include/asm/io.h | 410 +++++++++++++++++++++++++++++++++ arch/nds32/include/asm/mach-types.h | 29 +++ arch/nds32/include/asm/memory.h | 19 ++ arch/nds32/include/asm/posix_types.h | 84 +++++++ arch/nds32/include/asm/processor.h | 25 ++ arch/nds32/include/asm/ptrace.h | 88 +++++++ arch/nds32/include/asm/string.h | 57 +++++ arch/nds32/include/asm/system.h | 88 +++++++ arch/nds32/include/asm/types.h | 63 +++++ arch/nds32/include/asm/u-boot-nds32.h | 50 ++++ arch/nds32/include/asm/u-boot.h | 63 +++++ arch/nds32/include/asm/unaligned.h | 31 +++ 17 files changed, 1391 insertions(+), 0 deletions(-) create mode 100644 arch/nds32/include/asm/bitops.h create mode 100644 arch/nds32/include/asm/byteorder.h create mode 100644 arch/nds32/include/asm/cache.h create mode 100644 arch/nds32/include/asm/config.h create mode 100644 arch/nds32/include/asm/global_data.h create mode 100644 arch/nds32/include/asm/io.h create mode 100644 arch/nds32/include/asm/mach-types.h create mode 100644 arch/nds32/include/asm/memory.h create mode 100644 arch/nds32/include/asm/posix_types.h create mode 100644 arch/nds32/include/asm/processor.h create mode 100644 arch/nds32/include/asm/ptrace.h create mode 100644 arch/nds32/include/asm/string.h create mode 100644 arch/nds32/include/asm/system.h create mode 100644 arch/nds32/include/asm/types.h create mode 100644 arch/nds32/include/asm/u-boot-nds32.h create mode 100644 arch/nds32/include/asm/u-boot.h create mode 100644 arch/nds32/include/asm/unaligned.h
diff --git a/arch/nds32/include/asm/bitops.h b/arch/nds32/include/asm/bitops.h new file mode 100644 index 0000000..c56f04b --- /dev/null +++ b/arch/nds32/include/asm/bitops.h @@ -0,0 +1,186 @@ +/* + * Copyright 1995, Russell King. + * Various bits and pieces copyrights include: + * Linus Torvalds (test_bit). + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * + * bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1). + * + * Please note that the code in this file should never be included + * from user space. Many of these are not implemented in assembler + * since they would be too costly. Also, they require priviledged + * instructions (which are not available from user mode) to ensure + * that they are atomic. + */ + +#ifndef __ASM_NDS_BITOPS_H +#define __ASM_NDS_BITOPS_H + +#ifdef __KERNEL__ + +#include <asm/system.h> + +#define smp_mb__before_clear_bit() do { } while (0) +#define smp_mb__after_clear_bit() do { } while (0) + +/* + * Function prototypes to keep gcc -Wall happy. + */ +extern void set_bit(int nr, volatile void *addr); + +static inline void __set_bit(int nr, volatile void *addr) +{ + int *a = (int *)addr; + int mask; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + *a |= mask; +} + +extern void clear_bit(int nr, volatile void *addr); + +static inline void __clear_bit(int nr, volatile void *addr) +{ + int *a = (int *)addr; + int mask; + unsigned long flags; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + local_irq_save(flags); + *a &= ~mask; + local_irq_restore(flags); +} + +extern void change_bit(int nr, volatile void *addr); + +static inline void __change_bit(int nr, volatile void *addr) +{ + int mask; + unsigned long *ADDR = (unsigned long *)addr; + + ADDR += nr >> 5; + mask = 1 << (nr & 31); + *ADDR ^= mask; +} + +extern int test_and_set_bit(int nr, volatile void *addr); + +static inline int __test_and_set_bit(int nr, volatile void *addr) +{ + int mask, retval; + volatile unsigned int *a = (volatile unsigned int *)addr; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + retval = (mask & *a) != 0; + *a |= mask; + return retval; +} + +extern int test_and_clear_bit(int nr, volatile void *addr); + +static inline int __test_and_clear_bit(int nr, volatile void *addr) +{ + int mask, retval; + volatile unsigned int *a = (volatile unsigned int *)addr; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + retval = (mask & *a) != 0; + *a &= ~mask; + return retval; +} + +extern int test_and_change_bit(int nr, volatile void *addr); + +static inline int __test_and_change_bit(int nr, volatile void *addr) +{ + int mask, retval; + volatile unsigned int *a = (volatile unsigned int *)addr; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + retval = (mask & *a) != 0; + *a ^= mask; + return retval; +} + +extern int find_first_zero_bit(void *addr, unsigned size); +extern int find_next_zero_bit(void *addr, int size, int offset); + +/* + * This routine doesn't need to be atomic. + */ +static inline int test_bit(int nr, const void *addr) +{ + return ((unsigned char *) addr)[nr >> 3] & (1U << (nr & 7)); +} + +/* + * ffz = Find First Zero in word. Undefined if no zero exists, + * so code should check against ~0UL first.. + */ +static inline unsigned long ffz(unsigned long word) +{ + int k; + + word = ~word; + k = 31; + if (word & 0x0000ffff) { + k -= 16; word <<= 16; + } + if (word & 0x00ff0000) { + k -= 8; word <<= 8; + } + if (word & 0x0f000000) { + k -= 4; word <<= 4; + } + if (word & 0x30000000) { + k -= 2; word <<= 2; + } + if (word & 0x40000000) + k -= 1; + + return k; +} + +/* + * ffs: find first bit set. This is defined the same way as + * the libc and compiler builtin ffs routines, therefore + * differs in spirit from the above ffz (man ffs). + */ + +/* + * redefined in include/linux/bitops.h + * #define ffs(x) generic_ffs(x) + */ + +/* + * hweightN: returns the hamming weight (i.e. the number + * of bits set) of a N-bit word + */ + +#define hweight32(x) generic_hweight32(x) +#define hweight16(x) generic_hweight16(x) +#define hweight8(x) generic_hweight8(x) + +#define ext2_set_bit test_and_set_bit +#define ext2_clear_bit test_and_clear_bit +#define ext2_test_bit test_bit +#define ext2_find_first_zero_bit find_first_zero_bit +#define ext2_find_next_zero_bit find_next_zero_bit + +/* Bitmap functions for the minix filesystem. */ +#define minix_test_and_set_bit(nr, addr) test_and_set_bit(nr, addr) +#define minix_set_bit(nr, addr) set_bit(nr, addr) +#define minix_test_and_clear_bit(nr, addr) test_and_clear_bit(nr, addr) +#define minix_test_bit(nr, addr) test_bit(nr, addr) +#define minix_find_first_zero_bit(addr, size) find_first_zero_bit(addr, size) + +#endif /* __KERNEL__ */ + +#endif /* __ASM_NDS_BITOPS_H */ diff --git a/arch/nds32/include/asm/byteorder.h b/arch/nds32/include/asm/byteorder.h new file mode 100644 index 0000000..39fd9ed --- /dev/null +++ b/arch/nds32/include/asm/byteorder.h @@ -0,0 +1,36 @@ +/* + * linux/include/asm-arm/byteorder.h + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * ARM Endian-ness. In little endian mode, the data bus is connected such + * that byte accesses appear as: + * 0 = d0...d7, 1 = d8...d15, 2 = d16...d23, 3 = d24...d31 + * and word accesses (data or instruction) appear as: + * d0...d31 + * + * When in big endian mode, byte accesses appear as: + * 0 = d24...d31, 1 = d16...d23, 2 = d8...d15, 3 = d0...d7 + * and word accesses (data or instruction) appear as: + * d0...d31 + */ + +#ifndef __ASM_NDS_BYTEORDER_H +#define __ASM_NDS_BYTEORDER_H + +#include <asm/types.h> + +#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) +# define __BYTEORDER_HAS_U64__ +# define __SWAB_64_THRU_32__ +#endif + +#ifdef __NDSEB__ +#include <linux/byteorder/big_endian.h> +#else +#include <linux/byteorder/little_endian.h> +#endif + +#endif diff --git a/arch/nds32/include/asm/cache.h b/arch/nds32/include/asm/cache.h new file mode 100644 index 0000000..d769196 --- /dev/null +++ b/arch/nds32/include/asm/cache.h @@ -0,0 +1,54 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _ASM_CACHE_H +#define _ASM_CACHE_H + +/* cache */ +int icache_status(void); +void icache_enable(void); +void icache_disable(void); +int dcache_status(void); +void dcache_enable(void); +void dcache_disable(void); + +#define DEFINE_GET_SYS_REG(reg) \ + static inline unsigned long GET_##reg(void) \ + { \ + unsigned long val; \ + __asm__ volatile ( \ + "mfsr %0, $"#reg : "=&r" (val) : : "memory" \ + ); \ + return val; \ + } + +enum cache_t {ICACHE, DCACHE}; +DEFINE_GET_SYS_REG(ICM_CFG); +DEFINE_GET_SYS_REG(DCM_CFG); +#define ICM_CFG_OFF_ISZ 6 /* I-cache line size */ +#define ICM_CFG_MSK_ISZ (0x7UL << ICM_CFG_OFF_ISZ) +#define DCM_CFG_OFF_DSZ 6 /* D-cache line size */ +#define DCM_CFG_MSK_DSZ (0x7UL << DCM_CFG_OFF_DSZ) + +#endif /* _ASM_CACHE_H */ diff --git a/arch/nds32/include/asm/config.h b/arch/nds32/include/asm/config.h new file mode 100644 index 0000000..23421b7 --- /dev/null +++ b/arch/nds32/include/asm/config.h @@ -0,0 +1,26 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + */ + +#ifndef _ASM_CONFIG_H_ +#define _ASM_CONFIG_H_ + +#endif diff --git a/arch/nds32/include/asm/global_data.h b/arch/nds32/include/asm/global_data.h new file mode 100644 index 0000000..a3e5b4c --- /dev/null +++ b/arch/nds32/include/asm/global_data.h @@ -0,0 +1,82 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/************************************************************** + * CAUTION: + * - do not implement for NDS32 Arch yet. + * - so far no one uses the macros defined in this head file. + **************************************************************/ + +#ifndef __ASM_GBL_DATA_H +#define __ASM_GBL_DATA_H +/* + * The following data structure is placed in some memory wich is + * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or + * some locked parts of the data cache) to allow for a minimum set of + * global variables during system initialization (until we have set + * up the memory controller so that we can use RAM). + * + * Keep it *SMALL* and remember to set CONFIG_GBL_DATA_SIZE > sizeof(gd_t) + */ + +typedef struct global_data { + bd_t *bd; + unsigned long flags; + unsigned long baudrate; + unsigned long have_console; /* serial_init() was called */ + + unsigned long reloc_off; /* Relocation Offset */ + unsigned long env_addr; /* Address of Environment struct */ + unsigned long env_valid; /* Checksum of Environment valid? */ + unsigned long fb_base; /* base address of frame buffer */ +#ifdef CONFIG_VFD + unsigned char vfd_type; /* display type */ +#endif + void **jt; /* jump table */ + char env_buf[32]; /* buffer for getenv() before reloc. */ +} gd_t; + +/* + * Global Data Flags + */ +#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */ +#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */ +#define GD_FLG_SILENT 0x00004 /* Silent mode */ +#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */ +#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */ +#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */ +#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ +#define GD_FLG_ENV_READY 0x00080 /* Environment imported into hash table */ + +#ifdef CONFIG_GLOBAL_DATA_NOT_REG8 +extern volatile gd_t g_gd; +#define DECLARE_GLOBAL_DATA_PTR static volatile gd_t *gd = &g_gd +#else +#define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("$r8") +#endif + +#endif /* __ASM_GBL_DATA_H */ diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h new file mode 100644 index 0000000..be097ec --- /dev/null +++ b/arch/nds32/include/asm/io.h @@ -0,0 +1,410 @@ +/* + * linux/include/asm-nds/io.h + * + * Copyright (C) 1996-2000 Russell King + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Modifications: + * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both + * constant addresses and variable addresses. + * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture + * specific IO header files. + * 27-Mar-1999 PJB Second parameter of memcpy_toio is const.. + * 04-Apr-1999 PJB Added check_signature. + * 12-Dec-1999 RMK More cleanups + * 18-Jun-2000 RMK Removed virt_to_* and friends definitions + */ +#ifndef __ASM_NDS_IO_H +#define __ASM_NDS_IO_H + +/* + * CAUTION: + * - do not implement for NDS32 Arch yet. + * - cmd_pci.c, cmd_scsi.c, Lynxkdi.c, usb.c, usb_storage.c, etc... + * iinclude asm/io.h + */ + +#ifdef __KERNEL__ + +#include <linux/types.h> +#include <asm/byteorder.h> +#include <asm/memory.h> + +static inline void sync(void) +{ +} + +/* + * Given a physical address and a length, return a virtual address + * that can be used to access the memory range with the caching + * properties specified by "flags". + */ +#define MAP_NOCACHE (0) +#define MAP_WRCOMBINE (0) +#define MAP_WRBACK (0) +#define MAP_WRTHROUGH (0) + +static inline void * +map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) +{ + return (void *)paddr; +} + +/* + * Take down a mapping set up by map_physmem(). + */ +static inline void unmap_physmem(void *vaddr, unsigned long flags) +{ + +} + +static inline phys_addr_t virt_to_phys(void *vaddr) +{ + return (phys_addr_t)(vaddr); +} + +/* + * Generic virtual read/write. Note that we don't support half-word + * read/writes. We define __arch_*[bl] here, and leave __arch_*w + * to the architecture specific code. + */ +#define __arch_getb(a) (*(volatile unsigned char *)(a)) +#define __arch_getw(a) (*(volatile unsigned short *)(a)) +#define __arch_getl(a) (*(volatile unsigned int *)(a)) + +#define __arch_putb(v, a) (*(volatile unsigned char *)(a) = (v)) +#define __arch_putw(v, a) (*(volatile unsigned short *)(a) = (v)) +#define __arch_putl(v, a) (*(volatile unsigned int *)(a) = (v)) + +extern void __raw_writesb(unsigned int addr, const void *data, int bytelen); +extern void __raw_writesw(unsigned int addr, const void *data, int wordlen); +extern void __raw_writesl(unsigned int addr, const void *data, int longlen); + +extern void __raw_readsb(unsigned int addr, void *data, int bytelen); +extern void __raw_readsw(unsigned int addr, void *data, int wordlen); +extern void __raw_readsl(unsigned int addr, void *data, int longlen); + +#define __raw_writeb(v, a) __arch_putb(v, a) +#define __raw_writew(v, a) __arch_putw(v, a) +#define __raw_writel(v, a) __arch_putl(v, a) + +#define __raw_readb(a) __arch_getb(a) +#define __raw_readw(a) __arch_getw(a) +#define __raw_readl(a) __arch_getl(a) + +#define writeb(v, a) __arch_putb(v, a) +#define writew(v, a) __arch_putw(v, a) +#define writel(v, a) __arch_putl(v, a) + +#define readb(a) __arch_getb(a) +#define readw(a) __arch_getw(a) +#define readl(a) __arch_getl(a) + +/* + * The compiler seems to be incapable of optimising constants + * properly. Spell it out to the compiler in some cases. + * These are only valid for small values of "off" (< 1<<12) + */ +#define __raw_base_writeb(val, base, off) __arch_base_putb(val, base, off) +#define __raw_base_writew(val, base, off) __arch_base_putw(val, base, off) +#define __raw_base_writel(val, base, off) __arch_base_putl(val, base, off) + +#define __raw_base_readb(base, off) __arch_base_getb(base, off) +#define __raw_base_readw(base, off) __arch_base_getw(base, off) +#define __raw_base_readl(base, off) __arch_base_getl(base, off) + +/* + * Now, pick up the machine-defined IO definitions + * #include <asm/arch/io.h> + */ + +/* + * IO port access primitives + * ------------------------- + * + * The NDS32 doesn't have special IO access instructions just like ARM; + * all IO is memory mapped. + * Note that these are defined to perform little endian accesses + * only. Their primary purpose is to access PCI and ISA peripherals. + * + * Note that for a big endian machine, this implies that the following + * big endian mode connectivity is in place, as described by numerious + * ARM documents: + * + * PCI: D0-D7 D8-D15 D16-D23 D24-D31 + * ARM: D24-D31 D16-D23 D8-D15 D0-D7 + * + * The machine specific io.h include defines __io to translate an "IO" + * address to a memory address. + * + * Note that we prevent GCC re-ordering or caching values in expressions + * by introducing sequence points into the in*() definitions. Note that + * __raw_* do not guarantee this behaviour. + * + * The {in,out}[bwl] macros are for emulating x86-style PCI/ISA IO space. + */ +#ifdef __io +#define outb(v, p) __raw_writeb(v, __io(p)) +#define outw(v, p) __raw_writew(cpu_to_le16(v), __io(p)) +#define outl(v, p) __raw_writel(cpu_to_le32(v), __io(p)) + +#define inb(p) ({ unsigned int __v = __raw_readb(__io(p)); __v; }) +#define inw(p) ({ unsigned int __v = le16_to_cpu(__raw_readw(__io(p))); __v; }) +#define inl(p) ({ unsigned int __v = le32_to_cpu(__raw_readl(__io(p))); __v; }) + +#define outsb(p, d, l) writesb(__io(p), d, l) +#define outsw(p, d, l) writesw(__io(p), d, l) +#define outsl(p, d, l) writesl(__io(p), d, l) + +#define insb(p, d, l) readsb(__io(p), d, l) +#define insw(p, d, l) readsw(__io(p), d, l) +#define insl(p, d, l) readsl(__io(p), d, l) + +static inline void readsb(unsigned int *addr, void * data, int bytelen) +{ + unsigned char *ptr = (unsigned char *)addr; + unsigned char *ptr2 = (unsigned char *)data; + while (bytelen) { + *ptr2 = *ptr; + ptr2++; + bytelen--; + } +} + +static inline void readsw(unsigned int *addr, void * data, int wordlen) +{ + unsigned short *ptr = (unsigned short *)addr; + unsigned short *ptr2 = (unsigned short *)data; + while (wordlen) { + *ptr2 = *ptr; + ptr2++; + wordlen--; + } +} + +static inline void readsl(unsigned int *addr, void * data, int longlen) +{ + unsigned int *ptr = (unsigned int *)addr; + unsigned int *ptr2 = (unsigned int *)data; + while (longlen) { + *ptr2 = *ptr; + ptr2++; + longlen--; + } +} +static inline void writesb(unsigned int *addr, const void * data, int bytelen) +{ + unsigned char *ptr = (unsigned char *)addr; + unsigned char *ptr2 = (unsigned char *)data; + while (bytelen) { + *ptr = *ptr2; + ptr2++; + bytelen--; + } +} +static inline void writesw(unsigned int *addr, const void * data, int wordlen) +{ + unsigned short *ptr = (unsigned short *)addr; + unsigned short *ptr2 = (unsigned short *)data; + while (wordlen) { + *ptr = *ptr2; + ptr2++; + wordlen--; + } +} +static inline void writesl(unsigned int *addr, const void * data, int longlen) +{ + unsigned int *ptr = (unsigned int *)addr; + unsigned int *ptr2 = (unsigned int *)data; + while (longlen) { + *ptr = *ptr2; + ptr2++; + longlen--; + } +} +#endif + +#define outb_p(val, port) outb((val), (port)) +#define outw_p(val, port) outw((val), (port)) +#define outl_p(val, port) outl((val), (port)) +#define inb_p(port) inb((port)) +#define inw_p(port) inw((port)) +#define inl_p(port) inl((port)) + +#define outsb_p(port, from, len) outsb(port, from, len) +#define outsw_p(port, from, len) outsw(port, from, len) +#define outsl_p(port, from, len) outsl(port, from, len) +#define insb_p(port, to, len) insb(port, to, len) +#define insw_p(port, to, len) insw(port, to, len) +#define insl_p(port, to, len) insl(port, to, len) + +/* + * ioremap and friends. + * + * ioremap takes a PCI memory address, as specified in + * linux/Documentation/IO-mapping.txt. If you want a + * physical address, use __ioremap instead. + */ +extern void *__ioremap(unsigned long offset, size_t size, unsigned long flags); +extern void __iounmap(void *addr); + +/* + * Generic ioremap support. + * + * Define: + * iomem_valid_addr(off,size) + * iomem_to_phys(off) + */ +#ifdef iomem_valid_addr +#define __arch_ioremap(off, sz, nocache) \ +({ \ + unsigned long _off = (off), _size = (sz); \ + void *_ret = (void *)0; \ + if (iomem_valid_addr(_off, _size)) \ + _ret = __ioremap(iomem_to_phys(_off), _size, 0); \ + _ret; \ +}) + +#define __arch_iounmap __iounmap +#endif + +#define ioremap(off, sz) __arch_ioremap((off), (sz), 0) +#define ioremap_nocache(off, sz) __arch_ioremap((off), (sz), 1) +#define iounmap(_addr) __arch_iounmap(_addr) + +/* + * DMA-consistent mapping functions. These allocate/free a region of + * uncached, unwrite-buffered mapped memory space for use with DMA + * devices. This is the "generic" version. The PCI specific version + * is in pci.h + */ +extern void *consistent_alloc(int gfp, size_t size, dma_addr_t *handle); +extern void consistent_free(void *vaddr, size_t size, dma_addr_t handle); +extern void consistent_sync(void *vaddr, size_t size, int rw); + +/* + * String version of IO memory access ops: + */ +extern void _memcpy_fromio(void *, unsigned long, size_t); +extern void _memcpy_toio(unsigned long, const void *, size_t); +extern void _memset_io(unsigned long, int, size_t); + +extern void __readwrite_bug(const char *fn); + +/* + * If this architecture has PCI memory IO, then define the read/write + * macros. These should only be used with the cookie passed from + * ioremap. + */ +#ifdef __mem_pci + +#define readb(c) ({ unsigned int __v = __raw_readb(__mem_pci(c)); __v; }) +#define readw(c) ({ unsigned int __v = le16_to_cpu(__raw_readw(__mem_pci(c))); __v; }) +#define readl(c) ({ unsigned int __v = le32_to_cpu(__raw_readl(__mem_pci(c))); __v; }) + +#define writeb(v, c) __raw_writeb(v, __mem_pci(c)) +#define writew(v, c) __raw_writew(cpu_to_le16(v), __mem_pci(c)) +#define writel(v, c) __raw_writel(cpu_to_le32(v), __mem_pci(c)) + +#define memset_io(c, v, l) _memset_io(__mem_pci(c), (v), (l)) +#define memcpy_fromio(a, c, l) _memcpy_fromio((a), __mem_pci(c), (l)) +#define memcpy_toio(c, a, l) _memcpy_toio(__mem_pci(c), (a), (l)) + +#define eth_io_copy_and_sum(s, c, l, b) \ + eth_copy_and_sum((s), __mem_pci(c), (l), (b)) + +static inline int +check_signature(unsigned long io_addr, const unsigned char *signature, + int length) +{ + int retval = 0; + do { + if (readb(io_addr) != *signature) + goto out; + io_addr++; + signature++; + length--; + } while (length); + retval = 1; +out: + return retval; +} + +#elif !defined(readb) + +#define readb(addr) (__readwrite_bug("readb"), 0) +#define readw(addr) (__readwrite_bug("readw"), 0) +#define readl(addr) (__readwrite_bug("readl"), 0) +#define writeb(v, addr) __readwrite_bug("writeb") +#define writew(v, addr) __readwrite_bug("writew") +#define writel(v, addr) __readwrite_bug("writel") + +#define eth_io_copy_and_sum(a, b, c, d) __readwrite_bug("eth_io_copy_and_sum") + +#define check_signature(io, sig, len) (0) + +#endif /* __mem_pci */ + +/* + * If this architecture has ISA IO, then define the isa_read/isa_write + * macros. + */ +#ifdef __mem_isa + +#define isa_readb(addr) __raw_readb(__mem_isa(addr)) +#define isa_readw(addr) __raw_readw(__mem_isa(addr)) +#define isa_readl(addr) __raw_readl(__mem_isa(addr)) +#define isa_writeb(val, addr) __raw_writeb(val, __mem_isa(addr)) +#define isa_writew(val, addr) __raw_writew(val, __mem_isa(addr)) +#define isa_writel(val, addr) __raw_writel(val, __mem_isa(addr)) +#define isa_memset_io(a, b, c) _memset_io(__mem_isa(a), (b), (c)) +#define isa_memcpy_fromio(a, b, c) _memcpy_fromio((a), __mem_isa(b), (c)) +#define isa_memcpy_toio(a, b, c) _memcpy_toio(__mem_isa((a)), (b), (c)) + +#define isa_eth_io_copy_and_sum(a, b, c, d) \ + eth_copy_and_sum((a), __mem_isa(b), (c), (d)) + +static inline int +isa_check_signature(unsigned long io_addr, const unsigned char *signature, + int length) +{ + int retval = 0; + do { + if (isa_readb(io_addr) != *signature) + goto out; + io_addr++; + signature++; + length--; + } while (length); + retval = 1; +out: + return retval; +} + +#else /* __mem_isa */ + +#define isa_readb(addr) (__readwrite_bug("isa_readb"), 0) +#define isa_readw(addr) (__readwrite_bug("isa_readw"), 0) +#define isa_readl(addr) (__readwrite_bug("isa_readl"), 0) +#define isa_writeb(val, addr) __readwrite_bug("isa_writeb") +#define isa_writew(val, addr) __readwrite_bug("isa_writew") +#define isa_writel(val, addr) __readwrite_bug("isa_writel") +#define isa_memset_io(a, b, c) __readwrite_bug("isa_memset_io") +#define isa_memcpy_fromio(a, b, c) __readwrite_bug("isa_memcpy_fromio") +#define isa_memcpy_toio(a, b, c) __readwrite_bug("isa_memcpy_toio") + +#define isa_eth_io_copy_and_sum(a, b, c, d) \ + __readwrite_bug("isa_eth_io_copy_and_sum") + +#define isa_check_signature(io, sig, len) (0) + +#endif /* __mem_isa */ +#endif /* __KERNEL__ */ +#endif /* __ASM_NDS_IO_H */ diff --git a/arch/nds32/include/asm/mach-types.h b/arch/nds32/include/asm/mach-types.h new file mode 100644 index 0000000..a6f1c93 --- /dev/null +++ b/arch/nds32/include/asm/mach-types.h @@ -0,0 +1,29 @@ +/* + * This was automagically generated from arch/nds/tools/mach-types! + * Do NOT edit + */ + +#ifndef __ASM_NDS32_MACH_TYPE_H +#define __ASM_NDS32_MACH_TYPE_H + +#ifndef __ASSEMBLY__ +/* The type of machine we're running on */ +extern unsigned int __machine_arch_type; +#endif + +/* see arch/arm/kernel/arch.c for a description of these */ +#define MACH_TYPE_ADPAG101 0 + +#ifdef CONFIG_ARCH_ADPAG101 +# ifdef machine_arch_type +# undef machine_arch_type +# define machine_arch_type __machine_arch_type +# else +# define machine_arch_type MACH_TYPE_ADPAG101 +# endif +# define machine_is_adpag101() (machine_arch_type == MACH_TYPE_ADPAG101) +#else +# define machine_is_adpag101() (0) +#endif + +#endif /* __ASM_NDS32_MACH_TYPE_H */ diff --git a/arch/nds32/include/asm/memory.h b/arch/nds32/include/asm/memory.h new file mode 100644 index 0000000..5bcc4e1 --- /dev/null +++ b/arch/nds32/include/asm/memory.h @@ -0,0 +1,19 @@ +/* + * linux/include/asm-arm/memory.h + * + * Copyright (C) 2000-2002 Russell King + * + * Copyright (C) 2011 Andes Technology Corporation + * Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Note: this file should not be included by non-asm/.h files + */ +#ifndef __ASM_NDS_MEMORY_H +#define __ASM_NDS_MEMORY_H + +#endif /* __ASM_NDS_MEMORY_H */ diff --git a/arch/nds32/include/asm/posix_types.h b/arch/nds32/include/asm/posix_types.h new file mode 100644 index 0000000..a928038 --- /dev/null +++ b/arch/nds32/include/asm/posix_types.h @@ -0,0 +1,84 @@ +/* + * linux/include/asm-arm/posix_types.h + * + * Copyright (C) 1996-1998 Russell King. + * + * Copyright (C) 2011 Andes Technology Corporation + * Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Changelog: + * 27-06-1996 RMK Created + * 05-03-2010 Modified for arch NDS32 + */ +#ifndef __ARCH_NDS_POSIX_TYPES_H +#define __ARCH_NDS_POSIX_TYPES_H + +/* + * This file is generally used by user-level software, so you need to + * be a little careful about namespace pollution etc. Also, we cannot + * assume GCC is being used. + */ + +typedef unsigned short __kernel_dev_t; +typedef unsigned long __kernel_ino_t; +typedef unsigned short __kernel_mode_t; +typedef unsigned short __kernel_nlink_t; +typedef long __kernel_off_t; +typedef int __kernel_pid_t; +typedef unsigned short __kernel_ipc_pid_t; +typedef unsigned short __kernel_uid_t; +typedef unsigned short __kernel_gid_t; +typedef unsigned int __kernel_size_t; +typedef int __kernel_ssize_t; +typedef int __kernel_ptrdiff_t; +typedef long __kernel_time_t; +typedef long __kernel_suseconds_t; +typedef long __kernel_clock_t; +typedef int __kernel_daddr_t; +typedef char *__kernel_caddr_t; +typedef unsigned short __kernel_uid16_t; +typedef unsigned short __kernel_gid16_t; +typedef unsigned int __kernel_uid32_t; +typedef unsigned int __kernel_gid32_t; + +typedef unsigned short __kernel_old_uid_t; +typedef unsigned short __kernel_old_gid_t; + +#ifdef __GNUC__ +typedef long long __kernel_loff_t; +#endif + +typedef struct { +#if defined(__KERNEL__) || defined(__USE_ALL) + int val[2]; +#else /* !defined(__KERNEL__) && !defined(__USE_ALL) */ + int __val[2]; +#endif /* !defined(__KERNEL__) && !defined(__USE_ALL) */ +} __kernel_fsid_t; + +#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2) + +#undef __FD_SET +#define __FD_SET(fd, fdsetp) \ + (((fd_set *)fdsetp)->fds_bits[fd >> 5] |= (1<<(fd & 31))) + +#undef __FD_CLR +#define __FD_CLR(fd, fdsetp) \ + (((fd_set *)fdsetp)->fds_bits[fd >> 5] &= ~(1<<(fd & 31))) + +#undef __FD_ISSET +#define __FD_ISSET(fd, fdsetp) \ + ((((fd_set *)fdsetp)->fds_bits[fd >> 5] & (1<<(fd & 31))) != 0) + +#undef __FD_ZERO +#define __FD_ZERO(fdsetp) \ + (memset(fdsetp, 0, sizeof(*(fd_set *) fdsetp))) + +#endif + +#endif /* __ARCH_NDS_POSIX_TYPES_H */ diff --git a/arch/nds32/include/asm/processor.h b/arch/nds32/include/asm/processor.h new file mode 100644 index 0000000..e5d186c --- /dev/null +++ b/arch/nds32/include/asm/processor.h @@ -0,0 +1,25 @@ +/* + * linux/include/asm-arm/processor.h + * + * Copyright (C) 1995-2002 Russell King + * + * Copyright (C) 2011 Andes Technology Corporation + * Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_NDS_PROCESSOR_H +#define __ASM_NDS_PROCESSOR_H + +/************************************************************** + * CAUTION: + * - do not implement for NDS32 Arch yet. + * - so far some files include /asm/processor.h, but + * no one uses the macros defined in this head file. + **************************************************************/ + +#endif /* __ASM_ARM_PROCESSOR_H */ diff --git a/arch/nds32/include/asm/ptrace.h b/arch/nds32/include/asm/ptrace.h new file mode 100644 index 0000000..4336083 --- /dev/null +++ b/arch/nds32/include/asm/ptrace.h @@ -0,0 +1,88 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_NDS_PTRACE_H +#define __ASM_NDS_PTRACE_H + +#define USR_MODE 0x00 +#define SU_MODE 0x01 +#define HV_MODE 0x10 +#define MODE_MASK (0x03<<3) +#define GIE_BIT 0x01 + +#ifndef __ASSEMBLY__ + +/* this struct defines the way the registers are stored on the + stack during a system call. */ + +#define NDS32_REG long + +struct pt_regs { + NDS32_REG ir0; + NDS32_REG ipsw; + NDS32_REG ipc; + NDS32_REG sp; + NDS32_REG orig_r0; + NDS32_REG pipsw; + NDS32_REG pipc; + NDS32_REG pp0; + NDS32_REG pp1; + NDS32_REG d0hi; + NDS32_REG d0lo; + NDS32_REG d1hi; + NDS32_REG d1lo; + NDS32_REG r[26]; /* r0 - r25 */ + NDS32_REG fp; /* r28 */ + NDS32_REG gp; /* r29 */ + NDS32_REG lp; /* r30 */ + NDS32_REG fucop_ctl; + NDS32_REG osp; +}; + +#define processor_mode(regs) \ + (((regs)->ipsw & MODE_MASK) >> 3) + +#define interrupts_enabled(regs) \ + ((regs)->ipsw & GIE_BIT) + +/* + * Offsets used by 'ptrace' system call interface. + * These can't be changed without breaking binary compatibility + * with MkLinux, etc. + */ +#define PT_R0 0 +#define PT_R1 1 +#define PT_R2 2 +#define PT_R3 3 +#define PT_R4 4 +#define PT_R5 5 +#define PT_R6 6 +#define PT_R7 7 +#define PT_R8 8 +#define PT_R9 9 +#define PT_R10 10 +#define PT_R11 11 +#define PT_R12 12 +#define PT_R13 13 +#define PT_R14 14 +#define PT_R15 15 +#define PT_R16 16 +#define PT_R17 17 +#define PT_R18 18 +#define PT_R19 19 +#define PT_R20 20 +#define PT_R21 21 +#define PT_R22 22 +#define PT_R23 23 +#define PT_R24 24 +#define PT_R25 25 + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_NDS_PTRACE_H */ diff --git a/arch/nds32/include/asm/string.h b/arch/nds32/include/asm/string.h new file mode 100644 index 0000000..610aa9e --- /dev/null +++ b/arch/nds32/include/asm/string.h @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com) + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#ifndef __ASM_NDS_STRING_H +#define __ASM_NDS_STRING_H + +/* + * We don't do inline string functions, since the + * optimised inline asm versions are not small. + */ + +#undef __HAVE_ARCH_STRRCHR +extern char *strrchr(const char *s, int c); + +#undef __HAVE_ARCH_STRCHR +extern char *strchr(const char *s, int c); + +#undef __HAVE_ARCH_MEMCPY +extern void *memcpy(void *, const void *, __kernel_size_t); + +#undef __HAVE_ARCH_MEMMOVE +extern void *memmove(void *, const void *, __kernel_size_t); + +#undef __HAVE_ARCH_MEMCHR +extern void *memchr(const void *, int, __kernel_size_t); + +#undef __HAVE_ARCH_MEMZERO +#undef __HAVE_ARCH_MEMSET +extern void *memset(void *, int, __kernel_size_t); + +#ifdef CONFIG_MARCO_MEMSET +extern void __memzero(void *ptr, __kernel_size_t n); + +#define memset(p, v, n) \ + ({ \ + if ((n) != 0) { \ + if (__builtin_constant_p((v)) && (v) == 0) \ + __memzero((p), (n)); \ + else \ + memset((p), (v), (n)); \ + } \ + (p); \ + }) + +#define memzero(p, n) ({ if ((n) != 0) __memzero((p), (n)); (p); }) +#else +extern void memzero(void *ptr, __kernel_size_t n); +#endif + +#endif /* __ASM_NDS_STRING_H */ diff --git a/arch/nds32/include/asm/system.h b/arch/nds32/include/asm/system.h new file mode 100644 index 0000000..97f59e9 --- /dev/null +++ b/arch/nds32/include/asm/system.h @@ -0,0 +1,88 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#ifndef __ASM_NDS_SYSTEM_H +#define __ASM_NDS_SYSTEM_H + +/* + * Interrupt configuring macros. + */ + +extern int irq_flags; + +#define local_irq_enable() \ + __asm__ __volatile__ ( \ + "mfsr %0, $psw\n\t" \ + "andi %0, %0, 0x1\n\t" \ + "setgie.e\n\t" \ + : \ + : "r" (irq_flags) \ + ) + +#define local_irq_disable() \ + do { \ + int __tmp_dummy; \ + __asm__ __volatile__ ( \ + "mfsr %0, $psw\n\t" \ + "andi %0, %0, 0x1\n\t" \ + "setgie.d\n\t" \ + "dsb\n\t" \ + : "=r" (__tmp_dummy) \ + ); \ + } while (0) + +#define local_irq_save(x) \ + __asm__ __volatile__ ( \ + "mfsr %0, $psw\n\t" \ + "andi %0, %0, 0x1\n\t" \ + "setgie.d\n\t" \ + "dsb\n\t" \ + : "=&r" (x) \ + ) + +#define local_save_flags(x) \ + __asm__ __volatile__ ( \ + "mfsr %0, $psw\n\t" \ + "andi %0, %0, 0x1\n\t" \ + "setgie.e\n\t" \ + "setgie.d\n\t" \ + : "=r" (x) \ + ) + +#define irqs_enabled_from_flags(x) ((x) != 0x1f) + +#define local_irq_restore(x) \ + do { \ + if (irqs_enabled_from_flags(x)) \ + local_irq_enable(); \ + } while (0) + +/* + * Force strict CPU ordering. + */ +#define nop() asm volatile ("nop;\n\t" : : ) +#define mb() asm volatile ("" : : : "memory") +#define rmb() asm volatile ("" : : : "memory") +#define wmb() asm volatile ("" : : : "memory") + +#endif /* __ASM_NDS_SYSTEM_H */ diff --git a/arch/nds32/include/asm/types.h b/arch/nds32/include/asm/types.h new file mode 100644 index 0000000..2e8924f --- /dev/null +++ b/arch/nds32/include/asm/types.h @@ -0,0 +1,63 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com) + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#ifndef __ASM_NDS_TYPES_H +#define __ASM_NDS_TYPES_H + +typedef unsigned short umode_t; + +/* + * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the + * header files exported to user space + */ + +typedef __signed__ char __s8; +typedef unsigned char __u8; + +typedef __signed__ short __s16; +typedef unsigned short __u16; + +typedef __signed__ int __s32; +typedef unsigned int __u32; + +#if defined(__GNUC__) && !defined(__STRICT_ANSI__) +typedef __signed__ long long __s64; +typedef unsigned long long __u64; +#endif + +/* + * These aren't exported outside the kernel to avoid name space clashes + */ +#ifdef __KERNEL__ + +typedef signed char s8; +typedef unsigned char u8; + +typedef signed short s16; +typedef unsigned short u16; + +typedef signed int s32; +typedef unsigned int u32; + +typedef signed long long s64; +typedef unsigned long long u64; + +#define BITS_PER_LONG 32 + +#include <stddef.h> + +typedef u32 dma_addr_t; + +typedef unsigned long phys_addr_t; +typedef unsigned long phys_size_t; + +#endif /* __KERNEL__ */ + +#endif diff --git a/arch/nds32/include/asm/u-boot-nds32.h b/arch/nds32/include/asm/u-boot-nds32.h new file mode 100644 index 0000000..2383e08 --- /dev/null +++ b/arch/nds32/include/asm/u-boot-nds32.h @@ -0,0 +1,50 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#ifndef _U_BOOT_NDS32_H_ +#define _U_BOOT_NDS32_H_ 1 + +/* for the following variables, see start.S */ +extern ulong _andesboot_start; /* code start */ +extern ulong _andesboot_end; /* code end */ +extern ulong _andesboot_real_end; /* first usable RAM address */ + +/* cpu/.../cpu.c */ +int cleanup_before_linux(void); + +/* board/.../... */ +int board_init(void); +int dram_init(void); + +/* cpu/.../interrupt.c */ +void reset_timer_masked(void); + +/* cpu/.../timer.c */ +int timer_init(void); + +#endif /* _U_BOOT_NDS32_H_ */ diff --git a/arch/nds32/include/asm/u-boot.h b/arch/nds32/include/asm/u-boot.h new file mode 100644 index 0000000..fafe4e4 --- /dev/null +++ b/arch/nds32/include/asm/u-boot.h @@ -0,0 +1,63 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * + * Copyright (C) 2011 Andes Technology Corporation + * Copyright (C) 2010 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com) + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + ******************************************************************** + * NOTE: This header file defines an interface to U-Boot. Including + * this (unmodified) header file in another file is considered normal + * use of U-Boot, and does *not* fall under the heading of "derived + * work". + ******************************************************************** + */ + +#ifndef _U_BOOT_H_ +#define _U_BOOT_H_ 1 + +#include <environment.h> + +typedef struct bd_info { + int bi_baudrate; /* serial console baudrate */ + unsigned long bi_ip_addr; /* IP Address */ + unsigned char bi_enetaddr[6]; /* Ethernet adress */ + + env_t *bi_env; + unsigned long bi_arch_number; /* unique id for this board */ + unsigned long bi_boot_params; /* where this board expects params */ + + unsigned long bi_memstart; /* start of DRAM memory */ + unsigned long bi_memsize; /* size of DRAM memory in bytes */ + unsigned long bi_flashstart; /* start of FLASH memory */ + unsigned long bi_flashsize; /* size of FLASH memory */ + unsigned long bi_flashoffset; /* reserved area for startup monitor */ + + struct /* RAM configuration */ + { + unsigned long start; + unsigned long size; + } bi_dram[CONFIG_NR_DRAM_BANKS]; +} bd_t; + +#endif /* _U_BOOT_H_ */ diff --git a/arch/nds32/include/asm/unaligned.h b/arch/nds32/include/asm/unaligned.h new file mode 100644 index 0000000..ffa7e30 --- /dev/null +++ b/arch/nds32/include/asm/unaligned.h @@ -0,0 +1,31 @@ +/* + * Copyright (C) 2016 Andes Technology Corporation + * Copyright (C) 2011 Macpaul Lin (macpaul@andestech.com) + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#ifndef _ASM_NDS_UNALIGNED_H +#define _ASM_NDS_UNALIGNED_H + +#include <compiler.h> +/* + * Select endianness + */ +#ifndef __NDSEB__ +#define get_unaligned __get_unaligned_le +#define put_unaligned __put_unaligned_le +#else +#define get_unaligned __get_unaligned_be +#define put_unaligned __put_unaligned_be +#endif /* __NDSEB__ */ + +#include <asm/byteorder.h> + +#include <linux/unaligned/le_byteshift.h> +#include <linux/unaligned/be_byteshift.h> +#include <linux/unaligned/generic.h> + +#endif /* _ASM_NDS_UNALIGNED_H */
Add NDS32 support into common header file.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- include/common.h | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/include/common.h b/include/common.h index 54503ed..423bbd8 100644 --- a/include/common.h +++ b/include/common.h @@ -273,6 +273,10 @@ int setenv (char *, char *); #ifdef CONFIG_I386 /* x86 version to be fixed! */ # include <asm/u-boot-i386.h> #endif /* CONFIG_I386 */ +#ifdef CONFIG_NDS32 +# include <asm/mach-types.h> +# include <asm/u-boot-nds32.h> /* NDS32 version to be fixed! */ +#endif /* CONFIG_NDS32 */
#ifdef CONFIG_AUTO_COMPLETE int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
Add N1213 cpu core (N12 Core family) support for NDS32 arch. This patch includes start.S for the initialize procedure of N1213.
NDS32 Core N1213 has the following hardware features.
Core: - 16-/32-bit mixable instruction format - 32 general-purpose 32-bit registers - 8-stage pipeline - Dynamic branch prediction - 32/64/128/256 BTB - Return address stack (RAS) - Vector interrupts for internal/external - 3 HW-level nested interruptions - User and super-user mode support - Memory-mapped I/O - Address space up to 4GB
Memory Management Unit: - TLB - Optional hardware page table walker - Two groups of page size support
Memory Subsystem: - I & D cache - I & D local memory (LM)
Bus Interface: - Synchronous/Asynchronous AHB bus: 0, 1 or 2 ports
Start procedure: start.S will start up the N1213 CPU core at first, then jump to SoC dependent "lowlevel_init.S" and "watchdog.S" to configure peripheral devices.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- arch/nds32/cpu/n1213/Makefile | 50 +++++ arch/nds32/cpu/n1213/start.S | 447 +++++++++++++++++++++++++++++++++++++++ arch/nds32/cpu/n1213/u-boot.lds | 68 ++++++ 3 files changed, 565 insertions(+), 0 deletions(-) create mode 100644 arch/nds32/cpu/n1213/Makefile create mode 100644 arch/nds32/cpu/n1213/start.S create mode 100644 arch/nds32/cpu/n1213/u-boot.lds
diff --git a/arch/nds32/cpu/n1213/Makefile b/arch/nds32/cpu/n1213/Makefile new file mode 100644 index 0000000..111d14f --- /dev/null +++ b/arch/nds32/cpu/n1213/Makefile @@ -0,0 +1,50 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# Copyright (C) 2011 Andes Technology Corporation +# Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com +# Macpaul Lin, Andes Technology Corporation macpaul@andestech.com +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).o + +START = start.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/nds32/cpu/n1213/start.S b/arch/nds32/cpu/n1213/start.S new file mode 100644 index 0000000..b04f3a5 --- /dev/null +++ b/arch/nds32/cpu/n1213/start.S @@ -0,0 +1,447 @@ +/* + * Andesboot - Startup Code for Whitiger core + * + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin nobuhiro@andestech.com + * Copyright (C) 2011 Macpaul macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <config.h> +#include <common.h> +#include <version.h> + +/* + * Jump vector table for EVIC mode + */ +#define ENA_DCAC 2UL +#define DIS_DCAC ~ENA_DCAC +#define ICAC_MEM_KBF_ISET (0x07) ! I Cache sets per way +#define ICAC_MEM_KBF_IWAY (0x07<<3) ! I cache ways +#define ICAC_MEM_KBF_ISZ (0x07<<6) ! I cache line size +#define DCAC_MEM_KBF_DSET (0x07) ! D Cache sets per way +#define DCAC_MEM_KBF_DWAY (0x07<<3) ! D cache ways +#define DCAC_MEM_KBF_DSZ (0x07<<6) ! D cache line size + +#define PSW $ir0 +#define EIT_INTR_PSW $ir1 ! interruption $PSW +#define EIT_PREV_IPSW $ir2 ! previous $IPSW +#define EIT_IVB $ir3 ! intr vector base address +#define EIT_EVA $ir4 ! MMU related Exception Virtual Address register */ +#define EIT_PREV_EVA $ir5 ! previous $eva +#define EIT_ITYPE $ir6 ! interruption type +#define EIT_PREV_ITYPE $ir7 ! prev intr type +#define EIT_MACH_ERR $ir8 ! machine error log +#define EIT_INTR_PC $ir9 ! Interruption PC +#define EIT_PREV_IPC $ir10 ! previous $IPC +#define EIT_OVL_INTR_PC $ir11 ! overflow interruption PC +#define EIT_PREV_P0 $ir12 ! prev $P0 +#define EIT_PREV_P1 $ir13 ! prev $p1 +#define CR_ICAC_MEM $cr1 ! I-cache/memory config reg +#define CR_DCAC_MEM $cr2 ! D-cache/memory config reg +#define MR_CAC_CTL $mr8 + +.globl _start + +_start: b reset + b tlb_fill + b tlb_not_present + b tlb_misc + b tlb_vlpt_miss + b cache_parity_error + b debug + b general_exception + b internal_interrupt ! H0I + b internal_interrupt ! H1I + b internal_interrupt ! H2I + b internal_interrupt ! H3I + b internal_interrupt ! H4I + b internal_interrupt ! H5I + + .balign 16 + +!======================================================================== +! Andesboot Startup Code (reset vector) +! +! 1. bootstrap +! 1.1 reset - start of Andesboot +! 1.2 to superuser mode - as is when reset +! 1.4 Do lowlevel_init +! - (this will jump out to lowlevel_init.S in SoC) +! - (lowlevel_init) +! 1.3 Turn off watchdog timer +! - (this will jump out to watchdog.S in SoC) +! - (turnoff_watchdog) +! 2. Do critical init when reboot (not from mem) +! 3. Relocate andesboot to ram +! 4. Setup stack +! 5. Jump to second stage (start_andesboot) +!======================================================================== + +! Note: TEXT_BASE is defined by the (board-dependent) linker script +_TEXT_BASE: + .word CONFIG_SYS_TEXT_BASE + +.globl _andesboot_start +_andesboot_start: + .word _start + +! Note: andesboot_end is defined by the (board-dependent) linker script +.globl _andesboot_end +_andesboot_end: + .word andesboot_end + +! _andesboot_real_end is the first usable RAM address behind Andesboot +! and the various stacks +.globl _andesboot_real_end +_andesboot_real_end: + .word 0x0badc0de + +!============================================= +! The bootstrap code of Andesboot +!============================================= + +reset: + +load_lli: +#ifndef CONFIG_SKIP_LOWLEVEL_INIT + jal load_lowlevel_init + jral $p0 +#endif + +! Set the Whitiger core to superuser mode +! According to spec, it is already when reset + +turnoff_wtdog: +#ifndef CONFIG_SKIP_TRUNOFF_WATCHDOG + jal load_turnoff_watchdog + jral $p0 +#endif + +! Do CPU critical regs init only at reboot, not when booting from ram +#ifdef CONFIG_INIT_CRITICAL + bal cpu_init_crit ! Do CPU critical regs init +#endif + + .align 2 +relocate: + ! relocate andesboot to RAM + jal 2f + !la $r0, _start ! $r0 = source start addr + !l.w $r2, _andesboot_start ! Andesboot start address + !l.w $r3, _andesboot_end ! Andesboot end address + !sub $r2, $r3, $r2 ! $r2 = size of Andesboot + !l.w $r1, _TEXT_BASE ! $r1 = destination start addr + move $r0, $lp + la $p0, _start + la $p1, relocate+4 + sub $p0, $p1, $p0 + sub $r0, $r0, $p0 + + la $p0, _andesboot_end + sub $p0, $p0, $p1 + move $r3, $lp + lw $r3, [$r3+$p0] ! _andesboot_end + addi $p0, $p0, -4 + move $r2, $lp + lw $r2, [$r2+$p0] ! _andesboot_start + sub $r2, $r3, $r2 + addi $p0, $p0, -4 + move $r1, $lp + lw $r1, [$r1+$p0] ! _TEXT_BASE + + ! $r0 = source address + ! $r1 = destination address + ! $r2 = size to copy +copy_loop: + lmw.bim $r3, [$r0], $r10 + smw.bim $r3, [$r1], $r10 + addi $r2, $r2, -32 + bgez $r2, copy_loop + + ! Set up the stack + l.w $p0, _andesboot_end ! Defined by board linker script + li $p1, CONFIG_STACKSIZE ! (128*1024) defined in config.h + add $sp, $p0, $p1 + + bal flib_init_bss_memory + + ! Jump to start_andesboot (2nd phase) + l.w $p0, __start_andesboot + br $p0 + +__start_andesboot: .word start_andesboot + +!========================================================================= +! Initialize CPU critical registers +! +! 1. Setup control registers +! 1.1 Mask all IRQs +! 1.2 Flush cache and TLB +! 1.3 Disable MMU and cache +! 2. Setup memory timing +!========================================================================= + +cpu_init_crit: + !push ra + move $r0, $lp + ! Disable Interrupts by clear GIE in $PSW reg + setgie.d + + ! Flush caches and TLB + + ! Invalidate caches + bal invalidate_icac + bal invalidate_dcac + + ! Flush TLB + mfsr $p0, $MMU_CFG + andi $p0, $p0, 0x3 ! MMPS + li $p1, 0x2 ! TLB MMU + bne $p0, $p1, 1f + tlbop FlushAll ! Flush TLB + +1: + ! Disable MMU, Dcache + ! Whitiger is MMU disabled when reset + ! Disable the D$ + mfsr $p0, MR_CAC_CTL ! Get the $CACHE_CTL reg + li $p1, DIS_DCAC + and $p0, $p0, $p1 ! Set DC_EN bit + mtsr $p0, MR_CAC_CTL ! write back the $CACHE_CTL reg + isb + + ! RAM is initialized in the dram_init()(board/nds32/cpe.c) + ! Remove the memsetup.S in the board directory. + !pop ra + + move $lp, $r0 +2: + ret + +flib_init_bss_memory: + smw.adm $r4, [$sp], $r6, #0x1 + + la $r4, __bss_start + la $r5, __bss_end + move $r6, #0 +1: + swi.p $r6, [$r4], #4 + blt $r4, $r5, 1b ! Check if done.. + + lmw.bim $r4, [$sp], $r6, #0x1 + ret + +#ifndef CONFIG_SKIP_LOWLEVEL_INIT +load_lowlevel_init: + la $r6, lowlevel_init + la $r7, load_lli + 4 + sub $p0, $r6, $r7 + add $p0, $p0, $lp +ret +#endif + +#ifndef CONFIG_SKIP_TRUNOFF_WATCHDOG +load_turnoff_watchdog: + la $r6, turnoff_watchdog + la $r7, turnoff_wtdog + 4 + sub $p0, $r6, $r7 + add $p0, $p0, $lp +ret +#endif + + +!======================================================= +! Invalidate I$ +!======================================================= +invalidate_icac: + mfsr $t0, CR_ICAC_MEM ! read $cr1(I CAC/MEM cfg. reg.) configuration + andi $p0, $t0, ICAC_MEM_KBF_ISZ ! Get the ISZ field + beqz $p0, end_flush_icache ! if $p0=0, then no I CAC existed + srli $p0, $p0, 6 ! get $p0 the index of I$ block + addi $t1, $p0, 2 ! $t1= bit width of I cache line size(ISZ) + li $t4, 1 + sll $t5, $t4, $t1 ! get $t5 cache line size + andi $p1, $t0, ICAC_MEM_KBF_ISET ! get the ISET field + addi $t2, $p1, 6 ! $t2= bit width of ISET + andi $p1, $t0, ICAC_MEM_KBF_IWAY ! get bitfield of Iway + srli $p1, $p1, 3 + addi $p1, $p1, 1 ! then $p1 is I way number + add $t3, $t2, $t1 ! SHIFT + sll $p1, $p1, $t3 ! GET the total cache size +ICAC_LOOP: + sub $p1, $p1, $t5 + cctl $p1, L1I_IX_INVAL + bnez $p1, ICAC_LOOP +end_flush_icache: + ret + +!======================================================= +! Invalidate D$ +!======================================================= +invalidate_dcac: + mfsr $t0, CR_DCAC_MEM ! read $cr2(D CAC/MEM cfg. reg.) configuration + andi $p0, $t0, DCAC_MEM_KBF_DSZ ! Get the DSZ field + beqz $p0, end_flush_dcache ! if $p0=0, then no D CAC existed + srli $p0, $p0, 6 ! get $p0 the index of D$ block + addi $t1, $p0, 2 ! $t1= bit width of D cache line size(DSZ) + li $t4, 1 + sll $t5, $t4, $t1 ! get $t5 cache line size + andi $p1, $t0, DCAC_MEM_KBF_DSET ! get the DSET field + addi $t2, $p1, 6 ! $t2= bit width of DSET + andi $p1, $t0, DCAC_MEM_KBF_DWAY ! get bitfield of D way + srli $p1, $p1, 3 + addi $p1, $p1, 1 ! then $p1 is D way number + add $t3, $t2, $t1 ! SHIFT + sll $p1, $p1, $t3 ! GET the total cache size +DCAC_LOOP: + sub $p1, $p1, $t5 + cctl $p1, L1D_IX_INVAL + bnez $p1, DCAC_LOOP +end_flush_dcache: + ret + +!======================================================================== +! Interrupt handling +!======================================================================== + +/* + * exception handlers + */ + .align 5 + + .macro SAVE_ALL + ! FIXME: Other way to get PC? + ! FIXME: Update according to the newest spec!! +1: la $r28, 1 + push $r28 + mfsr $r28, PSW ! $PSW + push $r28 + mfsr $r28, EIT_EVA ! $ir1 $EVA + push $r28 + mfsr $r28, EIT_ITYPE ! $ir2 $ITYPE + push $r28 + mfsr $r28, EIT_MACH_ERR ! $ir3 Mach Error + push $r28 + mfsr $r28, EIT_INTR_PSW ! $ir5 $IPSW + push $r28 + mfsr $r28, EIT_PREV_IPSW ! $ir6 prev $IPSW + push $r28 + mfsr $r28, EIT_PREV_EVA ! $ir7 prev $EVA + push $r28 + mfsr $r28, EIT_PREV_ITYPE ! $ir8 prev $ITYPE + push $r28 + mfsr $r28, EIT_INTR_PC ! $ir9 Interruption PC + push $r28 + mfsr $r28, EIT_PREV_IPC ! $ir10 prev INTR_PC + push $r28 + mfsr $r28, EIT_OVL_INTR_PC ! $ir11 Overflowed INTR_PC + push $r28 + mfusr $r28, $d1.lo + push $r28 + mfusr $r28, $d1.hi + push $r28 + mfusr $r28, $d0.lo + push $r28 + mfusr $r28, $d0.hi + push $r28 + pushm $r0,$r30 /* we will also store $sp-$r31, ra-$r30, $gp-$r29, $r28-$fp */ + addi $sp, $sp, -4 ! make room for implicit pt_regs parameters + .endm + + .align 5 +tlb_fill: + SAVE_ALL + move $r0, $sp ! To get the kernel stack + li $r1, 1 ! Determine interruption type + bal do_interruption + + .align 5 +tlb_not_present: + SAVE_ALL + move $r0, $sp ! To get the kernel stack + li $r1, 2 ! Determine interruption type + bal do_interruption + + .align 5 +tlb_misc: + SAVE_ALL + move $r0, $sp ! To get the kernel stack + li $r1, 3 ! Determine interruption type + bal do_interruption + + .align 5 +tlb_vlpt_miss: + SAVE_ALL + move $r0, $sp ! To get the kernel stack + li $r1, 4 ! Determine interruption type + bal do_interruption + + .align 5 +cache_parity_error: + SAVE_ALL + move $r0, $sp ! To get the kernel stack + li $r1, 5 ! Determine interruption type + bal do_interruption + + .align 5 +debug: + SAVE_ALL + move $r0, $sp ! To get the kernel stack + li $r1, 6 ! Determine interruption type + bal do_interruption + + .align 5 +general_exception: + SAVE_ALL + move $r0, $sp ! To get the kernel stack + li $r1, 7 ! Determine interruption type + bal do_interruption + + .align 5 +internal_interrupt: + SAVE_ALL + move $r0, $sp ! To get the kernel stack + li $r1, 8 ! Determine interruption type + bal do_interruption + + .align 5 + +!=========================================== +!void reset_cpu(ulong addr); +! $r0: input address to jump to +!=========================================== +.globl reset_cpu +reset_cpu: +! No need to disable MMU because we never enable it! + + bal invalidate_icac + bal invalidate_dcac + mfsr $p0, $MMU_CFG + andi $p0, $p0, 0x3 ! MMPS + li $p1, 0x2 ! TLB MMU + bne $p0, $p1, 1f + tlbop FlushAll ! Flush TLB +1: + mfsr $p0, MR_CAC_CTL ! Get the $CACHE_CTL reg + li $p1, DIS_DCAC + and $p0, $p0, $p1 ! Clear the DC_EN bit + mtsr $p0, MR_CAC_CTL ! Write back the $CACHE_CTL reg + br $r0 ! Jump to the input address diff --git a/arch/nds32/cpu/n1213/u-boot.lds b/arch/nds32/cpu/n1213/u-boot.lds new file mode 100644 index 0000000..824d05d --- /dev/null +++ b/arch/nds32/cpu/n1213/u-boot.lds @@ -0,0 +1,68 @@ +/* + * (C) Copyright 2000 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_FORMAT("elf32-nds32", "elf32-nds32", "elf32-nds32") +OUTPUT_ARCH(nds32) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : + { + arch/nds32/cpu/n1213/start.o (.text) + *(.text) + } + + . = ALIGN(4); + .rodata : { *(.rodata) } + + . = ALIGN(4); + .data : { *(.data) } + + . = ALIGN(4); + .got : { *(.got) } + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = ALIGN(4); + __bss_start = .; + .bss : { *(.bss) } + __bss_end = .; + + . = ALIGN(4); + .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } + + andesboot_end = .; + + . = 0x02000000; + .u_boot_ohci_data_st : { *(.u_boot_ohci_data_st) } +}
Add header file of device offset support for SoC ag101.
SoC ag101 is the first chip using NDS32 N1213 cpu core.
Note: Ag101 is actually use ftsdmc021 instead of ftsdmc020 as dram controller, which is probably wrong in the datasheet.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- arch/nds32/include/asm/arch-ag101/ag101.h | 68 +++++++++++++++++++++++++++++ 1 files changed, 68 insertions(+), 0 deletions(-) create mode 100644 arch/nds32/include/asm/arch-ag101/ag101.h
diff --git a/arch/nds32/include/asm/arch-ag101/ag101.h b/arch/nds32/include/asm/arch-ag101/ag101.h new file mode 100644 index 0000000..011989a --- /dev/null +++ b/arch/nds32/include/asm/arch-ag101/ag101.h @@ -0,0 +1,68 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Nobuhiro Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __AG101_H +#define __AG101_H + +/* Hardware register bases */ +#define CONFIG_FTAHBC020S_BASE 0x90100000 /* AHB Controller */ +#define CONFIG_FTSMC020_BASE 0x90200000 /* Static Memory Controller (SRAM) */ +#define CONFIG_FTSDMC021_BASE 0x90300000 /* FTSDMC020/021 SDRAM Controller */ +#define CONFIG_FTDMAC020_BASE 0x90400000 /* DMA Controller */ +#define CONFIG_FTAPBBRG020S_01_BASE 0x90500000 /* AHB-to-APB Bridge */ +#define CONFIG_FTLCDC100_BASE 0x90600000 /* LCD Controller */ +#define CONFIG_RESERVED_01_BASE 0x90700000 /* Reserved */ +#define CONFIG_RESERVED_02_BASE 0x90800000 /* Reserved */ +#define CONFIG_FTMAC100_BASE 0x90900000 /* Ethernet */ +#define CONFIG_EXT_USB_HOST_BASE 0x90A00000 /* External USB host */ +#define CONFIG_USB_DEV_BASE 0x90B00000 /* USB Device */ +#define CONFIG_EXT_AHBPCIBRG_BASE 0x90C00000 /* External AHB-to-PCI Bridge (FTPCI100 not exist in ag101) */ +#define CONFIG_RESERVED_03_BASE 0x90D00000 /* Reserved */ +#define CONFIG_EXT_AHBAPBBRG_BASE 0x90E00000 /* External AHB-to-APB Bridger (FTAPBBRG020S_02) */ +#define CONFIG_EXT_AHBSLAVE01_BASE 0x90F00000 /* External AHB slave1 (LCD) */ + +#define CONFIG_EXT_AHBSLAVE02_BASE 0x92000000 /* External AHB slave2 (FUSBH200) */ + +/* DEBUG LED */ +#define CONFIG_DEBUG_LED 0x902FFFFC /* Debug LED */ + +/* APB Device definitions */ +#define CONFIG_FTPMU010_BASE 0x98100000 /* Power Management Unit */ +#define CONFIG_FTUART010_01_BASE 0x98300000 /* BT UART 2/IrDA (UART 01 in Linux) */ +#define CONFIG_FTTMR010_BASE 0x98400000 /* Counter/Timers */ +#define CONFIG_FTWDT010_BASE 0x98500000 /* Watchdog Timer */ +#define CONFIG_FTRTC010_BASE 0x98600000 /* Real Time Clock */ +#define CONFIG_FTGPIO010_BASE 0x98700000 /* GPIO */ +#define CONFIG_FTINTC010_BASE 0x98800000 /* Interrupt Controller */ +#define CONFIG_FTIIC010_BASE 0x98A00000 /* I2C */ +#define CONFIG_RESERVED_04_BASE 0x98C00000 /* Reserved */ +#define CONFIG_FTCFC010_BASE 0x98D00000 /* Compat Flash Controller */ +#define CONFIG_FTSDC010_BASE 0x98E00000 /* SD Controller */ + +#define CONFIG_FTSSP010_02_BASE 0x99400000 /* Synchronous Serial Port Controller (SSP) I2S/AC97 */ +#define CONFIG_FTUART010_02_BASE 0x99600000 /* ST UART ? SSP 02 (UART 02 in Linux) */ + +/* The following address was not defined in Linux */ +#define CONFIG_FTUART010_03_BASE 0x98200000 /* FF UART 3 */ +#define CONFIG_FTSSP010_01_BASE 0x98B00000 /* Synchronous Serial Port Controller (SSP) 01 */ +#define CONFIG_IRDA_BASE 0x98900000 /* IrDA */ +#define CONFIG_PMW_BASE 0x99100000 /* PWM - Pulse Width Modulator Controller */ + +#endif /* __AG101_H */
lowlevel_init.S is a peripheral initial procedure of ag101. It configures onboard dram, clock, and power settings. It also prepars the dram environment before moving u-boot from rom and flash into dram.
This version of lowlevel_init.S also replace hardcode value by MARCO defines from the GPL version andesboot for better code quality.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- ChangeLog from v1-v4: - Code clean up and formatting style.
ChangeLog from v5-v6 - Change hard code value into MARCO definitions. - ftsmc010 - Fix FTSMC020_TPR_AT2 from 1 to 3 (0xff3ff) - ftsdmc021 - Fix hardcoded address of CR1, CR2, TR1, TR2, BANK0 registers. - Fix the default configuration value of FTSDMC and FTSMC controller. - Remove some ftpmu010 and flash probe code to C functions.
arch/nds32/cpu/n1213/ag101/lowlevel_init.S | 160 ++++++++++++++++++++++++++++ 1 files changed, 160 insertions(+), 0 deletions(-) create mode 100644 arch/nds32/cpu/n1213/ag101/lowlevel_init.S
diff --git a/arch/nds32/cpu/n1213/ag101/lowlevel_init.S b/arch/nds32/cpu/n1213/ag101/lowlevel_init.S new file mode 100644 index 0000000..96969ba --- /dev/null +++ b/arch/nds32/cpu/n1213/ag101/lowlevel_init.S @@ -0,0 +1,160 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +.text + +#include <common.h> +#include <config.h> + +#ifndef CONFIG_SKIP_LOWLEVEL_INIT +.globl lowlevel_init +lowlevel_init: + move $r10, $lp + jal mem_init + jal remap + + ret $r10 + +mem_init: + move $r11, $lp + + /* + * mem_init: + * There are 2 bank connected to FTSMC020 on AG101 + * BANK0: FLASH/ROM (SW5, J16), BANK1: OnBoard SDRAM. + * we need to set onboard SDRAM before remap and relocation. + */ + li $r0, (CONFIG_FTSMC020_BASE+FTSMC020_BANK0_CR) + li $r1, (FTSMC020_BANK1_CONFIG) ! 0x10000052 + swi $r1, [$r0] + li $r1, (FTSMC020_BANK1_TIMING) ! 0x00151151 + swi $r1, [$r0+FTSMC020_BANK0_TPR] + + /* + * config AHB Controller + */ + li $r0, (CONFIG_FTAHBC020S_BASE + FTAHBC020S_SLAVE_BSR_6) + li $r1, (CONFIG_SYS_FTAHBC020S_SLAVE_BSR_6) + swi $r1, [$r0] + + /* + * config PMU + */ + li $r0, (CONFIG_FTPMU010_BASE + FTPMU010_PDLLCR0) + lwi $r1, [$r0] + ! ftpmu010_dlldis_disable, must do it in lowleve_init + li $r2, FTPMU010_PDLLCR0_DLLDIS ! 0x00010000 + or $r1, $r1, $r2 + swi $r1, [$r0] + + /* + * config SDRAM controller + */ + li $r0, (CONFIG_FTSDMC021_BASE) + li $r1, (CONFIG_SYS_FTSDMC021_TP1) ! 0x00011312 + swi $r1, [$r0] + li $r1, (CONFIG_SYS_FTSDMC021_TP2) ! 0x00480180 + swi $r1, [$r0+FTSDMC021_OFFSET_TP2] + li $r1, (CONFIG_SYS_FTSDMC021_CR1) ! 0x00002326 + swi $r1, [$r0+FTSDMC021_OFFSET_CR1] + li $r1, (FTSDMC021_CR2_IPREC) ! 0x00000010 + swi $r1, [$r0+FTSDMC021_OFFSET_CR2] +1: + lwi $r1, [$r0+FTSDMC021_OFFSET_CR2] + andi $r1, $r1, (CONFIG_SYS_FTSDMC021_CR2) ! 0x1C + bnez $r1, 1b + + li $r1, (FTSDMC021_CR2_ISMR) ! 0x00000004 + swi $r1, [$r0+FTSDMC021_OFFSET_CR2] +2: + lwi $r1, [$r0+FTSDMC021_OFFSET_CR2] + bnez $r1, 2b + + li $r1, (FTSDMC021_CR2_IREF) ! 0x00000008 + swi $r1, [$r0+FTSDMC021_OFFSET_CR2] +3: + lwi $r1, [$r0+FTSDMC021_OFFSET_CR2] + bnez $r1, 3b + + move $lp, $r11 + ret + +remap: + move $r11, $lp +#ifdef __NDS32_N1213_43U1H__ /* AG101 */ + bal 2f +relo_base: + move $r0, $lp +#else +relo_base: + mfusr $r0, $pc +#endif + + /* + * relocation, copy ROM code to SDRAM (current at 0x10000000) + */ + li $r4, CONFIG_SYS_RELO_ADDR ! 0x10000000 + li $r5, 0x0 + la $r1, relo_base + sub $r2, $r0, $r1 + sethi $r6, hi20(andesboot_end) + ori $r6, $r6, lo12(andesboot_end) + add $r6, $r6, $r2 +1: + lwi $r7, [$r5] + swi $r7, [$r4] + addi $r5, $r5, #4 + addi $r4, $r4, #4 + blt $r5, $r6, 1b + + /* + * Remapping + */ + li $r0, (CONFIG_FTSDMC021_BASE + FTSDMC021_OFFSET_TP1) + li $r1, (CONFIG_SYS_FTSDMC021_BANK0_BSR) ! 0x00001100 + swi $r1, [$r0+FTSDMC021_OFFSET_BANK0_BSR] + li $r1, 0x0 + swi $r1, [$r0+FTSDMC021_OFFSET_BANK1_BSR] + swi $r1, [$r0+FTSDMC021_OFFSET_BANK2_BSR] + swi $r1, [$r0+FTSDMC021_OFFSET_BANK3_BSR] + li $r1, (FTSDMC021_BANK_ENABLE) ! 0x00001000 + swi $r1, [$r0+FTSDMC021_OFFSET_BANK0_BSR] + + li $r0, (CONFIG_FTAHBC020S_BASE + FTAHBC020S_CR) + lwi $r1, [$r0] + ori $r1, $r1, FTAHBC020S_CR_REMAP ! 0x1 + swi $r1, [$r0] + + li $r0, (CONFIG_FTSMC020_BASE) + + move $lp, $r11 +2: + ret + +.globl show_led +show_led: + li $r8, (CONFIG_DEBUG_LED) + swi $r7, [$r8] + ret +#endif
Add main function of SoC ag101 based on NDS32 n1213 core.
cpu.c According to the bootstrap procedure in n1213 Core, to turn off watchdog timer is suggested after the cpu is in superuser mdoe.
1. bootstrap 1.1 reset - start of Andesboot 1.2 to superuser mode - as is when reset 1.3 Turn off watchdog timer
If you take look into the start.S in n1213, you will find that system will turn off watchdog after start.S has been retunred from lowlevel_init.
Since the watchdog device is depends on the SoC is choosed. It should be belonged to the SoC (ag101) folder.
watchdog.S: If you've ran another bootloader before u-boot was started the watchdog might have been enabled already.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- Changes for v5-v6: - Split watchdog.S from lowlevel_init.S. - Fix hardware reset by using watchdog reset in do_reset() in cpu.c. - reset_cpu was remove inside do_reset().
Changes for v7: - clean up.
arch/nds32/cpu/n1213/ag101/Makefile | 58 +++++++++ arch/nds32/cpu/n1213/ag101/cpu.c | 207 +++++++++++++++++++++++++++++++++ arch/nds32/cpu/n1213/ag101/timer.c | 204 ++++++++++++++++++++++++++++++++ arch/nds32/cpu/n1213/ag101/watchdog.S | 48 ++++++++ 4 files changed, 517 insertions(+), 0 deletions(-) create mode 100644 arch/nds32/cpu/n1213/ag101/Makefile create mode 100644 arch/nds32/cpu/n1213/ag101/cpu.c create mode 100644 arch/nds32/cpu/n1213/ag101/timer.c create mode 100644 arch/nds32/cpu/n1213/ag101/watchdog.S
diff --git a/arch/nds32/cpu/n1213/ag101/Makefile b/arch/nds32/cpu/n1213/ag101/Makefile new file mode 100644 index 0000000..e96b1e4 --- /dev/null +++ b/arch/nds32/cpu/n1213/ag101/Makefile @@ -0,0 +1,58 @@ +# +# (C) Copyright 2009 +# Marvell Semiconductor <www.marvell.com> +# Written-by: Prafulla Wadaskar prafulla@marvell.com +# +# Copyright (C) 2011 Andes Technology Corporation +# Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com +# Macpaul Lin, Andes Technology Corporation macpaul@andestech.com +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, +# MA 02110-1301 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(SOC).o + +COBJS-y := cpu.o timer.o + +ifndef CONFIG_SKIP_LOWLEVEL_INIT +SOBJS := lowlevel_init.o +endif + +ifndef CONFIG_SKIP_TRUNOFF_WATCHDOG +SOBJS += watchdog.o +endif + +SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c) +OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS-y)) + +all: $(obj).depend $(LIB) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/nds32/cpu/n1213/ag101/cpu.c b/arch/nds32/cpu/n1213/ag101/cpu.c new file mode 100644 index 0000000..8e7eb0a --- /dev/null +++ b/arch/nds32/cpu/n1213/ag101/cpu.c @@ -0,0 +1,207 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, gj@denx.de + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +/* CPU specific code */ +#include <common.h> +#include <command.h> +#include <watchdog.h> +#include <asm/cache.h> + +#include <faraday/ftwdt010_wdt.h> + +/* setup up stack if necessary */ +/* it makes no sense to use the caches if the MMU also isn't used */ +void cpu_init(void) +{ + _andesboot_real_end = _andesboot_end + CONFIG_STACKSIZE; +} + +/* + * cleanup_before_linux() is called just before we call linux + * it prepares the processor for linux + * + * we disable interrupt and caches. + */ +int cleanup_before_linux(void) +{ +#ifdef CONFIG_MMU + unsigned long i; +#endif + + disable_interrupts(); + +#ifdef CONFIG_MMU + /* turn off I/D-cache */ + icache_disable(); + dcache_disable(); + + /* flush I/D-cache */ + invalidate_icac(); + invalidate_dcac(); +#endif + + return 0; +} + +int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + disable_interrupts(); + + /* + * reset to the base addr of andesboot. + * currently no ROM loader at addr 0. + * do not use reset_cpu(0); + */ +#ifdef CONFIG_FTWDT010_WATCHDOG + /* + * workaround: if we use CONFIG_HW_WATCHDOG with ftwdt010, will lead + * automatic hardware reset when booting Linux. + * Please do not use CONFIG_HW_WATCHDOG and WATCHDOG_RESET() here. + */ + ftwdt010_wdt_reset(); + while (1) + ; +#endif /* CONFIG_FTWDT010_WATCHDOG */ + + /*NOTREACHED*/ +} + +static inline unsigned long CACHE_LINE_SIZE(enum cache_t cache) +{ + if (cache == ICACHE) + return 8 << (((GET_ICM_CFG() & ICM_CFG_MSK_ISZ) \ + >> ICM_CFG_OFF_ISZ) - 1); + else + return 8 << (((GET_DCM_CFG() & DCM_CFG_MSK_DSZ) \ + >> DCM_CFG_OFF_DSZ) - 1); +} + +void dcache_flush_range(unsigned long start, unsigned long end) +{ + unsigned long line_size; + + line_size = CACHE_LINE_SIZE(DCACHE); + + while (end > start) { + __asm__ volatile ("\n\tcctl %0, L1D_VA_WB" : : "r"(start)); + __asm__ volatile ("\n\tcctl %0, L1D_VA_INVAL" : : "r"(start)); + start += line_size; + } +} + +void icache_inval_range(unsigned long start, unsigned long end) +{ + unsigned long line_size; + + line_size = CACHE_LINE_SIZE(ICACHE); + while (end > start) { + __asm__ volatile ("\n\tcctl %0, L1I_VA_INVAL" : : "r"(start)); + start += line_size; + } +} + +void flush_cache(unsigned long addr, unsigned long size) +{ + dcache_flush_range(addr , addr + size); + icache_inval_range(addr , addr + size); +} + +void icache_enable(void) +{ + __asm__ __volatile__ ( + "mfsr $p0, $mr8\n\t" + "ori $p0, $p0, 0x01\n\t" + "mtsr $p0, $mr8\n\t" + "isb\n\t" + ); +} + +void icache_disable(void) +{ + __asm__ __volatile__ ( + "mfsr $p0, $mr8\n\t" + "li $p1, ~0x01\n\t" + "and $p0, $p0, $p1\n\t" + "mtsr $p0, $mr8\n\t" + "isb\n\t" + ); +} + +int icache_status(void) +{ + int ret; + + __asm__ __volatile__ ( + "mfsr $p0, $mr8\n\t" + "andi %0, $p0, 0x01\n\t" + : "=r" (ret) + : + : "memory" + ); + + return ret; +} + +void dcache_enable(void) +{ + __asm__ __volatile__ ( + "mfsr $p0, $mr8\n\t" + "ori $p0, $p0, 0x02\n\t" + "mtsr $p0, $mr8\n\t" + "isb\n\t" + ); +} + +void dcache_disable(void) +{ + __asm__ __volatile__ ( + "mfsr $p0, $mr8\n\t" + "li $p1, ~0x02\n\t" + "and $p0, $p0, $p1\n\t" + "mtsr $p0, $mr8\n\t" + "isb\n\t" + ); +} + +int dcache_status(void) +{ + int ret; + + __asm__ __volatile__ ( + "mfsr $p0, $mr8\n\t" + "andi %0, $p0, 0x02\n\t" + : "=r" (ret) + : + : "memory" + ); + + return ret; +} diff --git a/arch/nds32/cpu/n1213/ag101/timer.c b/arch/nds32/cpu/n1213/ag101/timer.c new file mode 100644 index 0000000..87275eb --- /dev/null +++ b/arch/nds32/cpu/n1213/ag101/timer.c @@ -0,0 +1,204 @@ +/* + * (C) Copyright 2009 Faraday Technology + * Po-Yu Chuang ratbert@faraday-tech.com + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <common.h> +#include <asm/io.h> +#include <faraday/fttmr010.h> + +static ulong timestamp; +static ulong lastdec; + +int timer_init(void) +{ + static struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE; + unsigned int cr; + + debug("%s()\n", __func__); + + /* disable timers */ + writel(0, &tmr->cr); + +#ifdef CONFIG_FTTMR010_EXT_CLK + /* use 32768Hz oscillator for RTC, WDT, TIMER */ + ftpmu010_32768osc_enable(); +#endif + + /* setup timer */ + writel(TIMER_LOAD_VAL, &tmr->timer3_load); + writel(TIMER_LOAD_VAL, &tmr->timer3_counter); + writel(0, &tmr->timer3_match1); + writel(0, &tmr->timer3_match2); + + /* we don't want timer to issue interrupts */ + writel(FTTMR010_TM3_MATCH1 | + FTTMR010_TM3_MATCH2 | + FTTMR010_TM3_OVERFLOW, + &tmr->interrupt_mask); + + cr = readl(&tmr->cr); +#ifdef CONFIG_FTTMR010_EXT_CLK + cr |= FTTMR010_TM3_CLOCK; /* use external clock */ +#endif + cr |= FTTMR010_TM3_ENABLE; + writel(cr, &tmr->cr); + + /* init the timestamp and lastdec value */ + reset_timer_masked(); + + return 0; +} + +/* + * timer without interrupts + */ + +/* + * reset time + */ +void reset_timer_masked(void) +{ + static struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE; + + /* capure current decrementer value time */ +#ifdef CONFIG_FTTMR010_EXT_CLK + lastdec = readl(&tmr->timer3_counter) / (TIMER_CLOCK / CONFIG_SYS_HZ); +#else + lastdec = readl(&tmr->timer3_counter) / (APB_CLK); +#endif + timestamp = 0; /* start "advancing" time stamp from 0 */ + + debug("%s(): lastdec = %lx\n", __func__, lastdec); +} + +void reset_timer(void) +{ + debug("%s()\n", __func__); + reset_timer_masked(); +} + +/* + * return timer ticks + */ +ulong get_timer_masked(void) +{ + static struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE; + + /* current tick value */ +#ifdef CONFIG_FTTMR010_EXT_CLK + ulong now = readl(&tmr->timer3_counter) / (TIMER_CLOCK / CONFIG_SYS_HZ); +#else + ulong now = readl(&tmr->timer3_counter) / (APB_CLK); +#endif + + debug("%s(): now = %lx, lastdec = %lx\n", __func__, now, lastdec); + + if (lastdec >= now) { + /* + * normal mode (non roll) + * move stamp fordward with absoulte diff ticks + */ + timestamp += lastdec - now; + } else { + /* + * we have overflow of the count down timer + * + * nts = ts + ld + (TLV - now) + * ts=old stamp, ld=time that passed before passing through -1 + * (TLV-now) amount of time after passing though -1 + * nts = new "advancing time stamp"...it could also roll and + * cause problems. + */ + timestamp += lastdec + TIMER_LOAD_VAL - now; + } + + lastdec = now; + + debug("%s() returns %lx\n", __func__, timestamp); + + return timestamp; +} + +/* + * return difference between timer ticks and base + */ +ulong get_timer(ulong base) +{ + debug("%s(%lx)\n", __func__, base); + return get_timer_masked() - base; +} + +void set_timer(ulong t) +{ + debug("%s(%lx)\n", __func__, t); + timestamp = t; +} + +/* delay x useconds AND preserve advance timestamp value */ +void __udelay(unsigned long usec) +{ + static struct fttmr010 *tmr = (struct fttmr010 *)CONFIG_FTTMR010_BASE; + +#ifdef CONFIG_FTTMR010_EXT_CLK + long tmo = usec * (TIMER_CLOCK / 1000) / 1000; +#else + long tmo = usec * (APB_CLK / 1000) / 1000; +#endif + unsigned long now, last = readl(&tmr->timer3_counter); + + debug("%s(%lu)\n", __func__, usec); + while (tmo > 0) { + now = readl(&tmr->timer3_counter); + if (now > last) /* count down timer overflow */ + tmo -= TIMER_LOAD_VAL + last - now; + else + tmo -= last - now; + last = now; + } +} + +/* + * This function is derived from PowerPC code (read timebase as long long). + * On ARM it just returns the timer value. + */ +unsigned long long get_ticks(void) +{ + debug("%s()\n", __func__); + return get_timer(0); +} + +/* + * This function is derived from PowerPC code (timebase clock frequency). + * On ARM it returns the number of timer ticks per second. + */ +ulong get_tbclk(void) +{ + debug("%s()\n", __func__); +#ifdef CONFIG_FTTMR010_EXT_CLK + return CONFIG_SYS_HZ; +#else + return CONFIG_SYS_CLK_FREQ; +#endif +} diff --git a/arch/nds32/cpu/n1213/ag101/watchdog.S b/arch/nds32/cpu/n1213/ag101/watchdog.S new file mode 100644 index 0000000..fc39f3f --- /dev/null +++ b/arch/nds32/cpu/n1213/ag101/watchdog.S @@ -0,0 +1,48 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <asm/arch-ag101/ag101.h> + +.text + +#ifndef CONFIG_SKIP_TRUNOFF_WATCHDOG +.globl turnoff_watchdog +turnoff_watchdog: + +#define WD_CR 0xC +#define WD_ENABLE 0x1 + + ! Turn off the watchdog, according to Faraday FTWDT010 spec + li $p0, (CONFIG_FTWDT010_BASE+WD_CR) ! Get the addr of WD CR + lwi $p1, [$p0] ! Get the config of WD + andi $p1, $p1, 0x1f ! Wipe out useless bits + li $r0, ~WD_ENABLE + and $p1, $p1, $r0 ! Set WD disable + sw $p1, [$p0] ! Write back to WD CR + + ! Disable Interrupts by clear GIE in $PSW reg + setgie.d + + ret + +#endif
Add Makefile, board.c, interrupts.c and bootm.c functions to nds32 architecture.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- Changes for v1-v4: - code clean up and formatting style.
Changes for v5-v6: - board.c - Do some clean up and add code - Remove display banner which hasn't support. - Add ftpmu010 related power management unit code. - Remove useless LED related code. - Move SDRAM init to board sepecific files. (ex. adp-ag101.c) - Remove CONFIG_SOFT_I2C which hasn't been support. - Remove CONFIG_FSL_ESDHC which hasn't been support. - clean up.
Changes for v7: - clean up. - move single file patch arch/nds32/config.mk to this commit. - interrupts.c refine origin interrupt enable and disable.
Changes for v8: - interrups.c: fix up for new ptraces.h.
arch/nds32/config.mk | 35 +++++ arch/nds32/lib/Makefile | 52 +++++++ arch/nds32/lib/board.c | 346 +++++++++++++++++++++++++++++++++++++++++++ arch/nds32/lib/bootm.c | 241 ++++++++++++++++++++++++++++++ arch/nds32/lib/interrupts.c | 131 ++++++++++++++++ 5 files changed, 805 insertions(+), 0 deletions(-) create mode 100644 arch/nds32/config.mk create mode 100644 arch/nds32/lib/Makefile create mode 100644 arch/nds32/lib/board.c create mode 100644 arch/nds32/lib/bootm.c create mode 100644 arch/nds32/lib/interrupts.c
diff --git a/arch/nds32/config.mk b/arch/nds32/config.mk new file mode 100644 index 0000000..ac5d0cf --- /dev/null +++ b/arch/nds32/config.mk @@ -0,0 +1,35 @@ +# +# (C) Copyright 2000-2002 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# (C) Copyright 2011 +# Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com +# Macpaul Lin, Andes Technology Corporation macpaul@andestech.com +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA + +CROSS_COMPILE ?= nds32le-linux- + +STANDALONE_LOAD_ADDR = 0x300000 -T nds32.lds + +PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common +PLATFORM_RELFLAGS += -gdwarf-2 +PLATFORM_CPPFLAGS += -DCONFIG_NDS32 -D__nds32__ -G0 -ffixed-8 + +LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds diff --git a/arch/nds32/lib/Makefile b/arch/nds32/lib/Makefile new file mode 100644 index 0000000..eca4324 --- /dev/null +++ b/arch/nds32/lib/Makefile @@ -0,0 +1,52 @@ +# +# (C) Copyright 2000-2006 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# Copyright (C) 2011 Andes Technology Corporation +# Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com +# Macpaul Lin, Andes Technology Corporation macpaul@andestech.com +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(ARCH).o + +OBJS := board.o bootm.o interrupts.o + +all: $(LIB) + +$(LIB): $(OBJS) $(SOBJS) + $(AR) crv $@ $^ + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/arch/nds32/lib/board.c b/arch/nds32/lib/board.c new file mode 100644 index 0000000..6ed4194 --- /dev/null +++ b/arch/nds32/lib/board.c @@ -0,0 +1,346 @@ +/* + * (C) Copyright 2002-2006 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <command.h> +#include <malloc.h> +#include <stdio_dev.h> +#include <timestamp.h> +#include <version.h> +#include <net.h> +#include <serial.h> +#include <nand.h> +#include <onenand_uboot.h> +#include <mmc.h> + +DECLARE_GLOBAL_DATA_PTR; + +extern ulong __bss_end; +ulong monitor_flash_len; + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +const char version_string[] = + U_BOOT_VERSION" (" U_BOOT_DATE " - " U_BOOT_TIME ")"CONFIG_IDENT_STRING; + +/* + * Init Utilities + */ + +#if !defined(CONFIG_BAUDRATE) +#define CONFIG_BAUDRATE 38400 +#endif +static int init_baudrate(void) +{ + char tmp[64]; /* long enough for environment variables */ + int i = getenv_f("baudrate", tmp, sizeof(tmp)); + + gd->bd->bi_baudrate = gd->baudrate = (i > 0) + ? (int) simple_strtoul(tmp, NULL, 10) + : CONFIG_BAUDRATE; + + return 0; +} + +/* + * WARNING: this code looks "cleaner" than the PowerPC version, but + * has the disadvantage that you either get nothing, or everything. + * On PowerPC, you might see "DRAM: " before the system hangs - which + * gives a simple yet clear indication which part of the + * initialization if failing. + */ +static int display_dram_config(void) +{ + int i; + +#ifdef DEBUG + puts("RAM Configuration:\n"); + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + printf("Bank #%d: %08lx ", i, gd->bd->bi_dram[i].start); + print_size(gd->bd->bi_dram[i].size, "\n"); + } +#else + ulong size = 0; + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) + size += gd->bd->bi_dram[i].size; + + puts("DRAM: "); + print_size(size, "\n"); +#endif + + return 0; +} + +#ifndef CONFIG_SYS_NO_FLASH +static void display_flash_config(ulong size) +{ + puts("Flash: "); + print_size(size, "\n"); +} +#endif /* CONFIG_SYS_NO_FLASH */ + +#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI) +#include <pci.h> +static int nds32_pci_init(void) +{ + pci_init(); + return 0; +} +#endif /* CONFIG_CMD_PCI || CONFIG_PCI */ + +#if defined(CONFIG_PMU) || defined(CONFIG_PCU) +static int pmu_init(void) +{ +#if defined(CONFIG_FTPMU010_POWER) +#ifdef __NDS32_N1213_43U1H__ /* AG101: internal definition in toolchain */ + ftpmu010_sdram_clk_disable(CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS); + ftpmu010_mfpsr_select_dev(FTPMU010_MFPSR_AC97CLKSEL); + ftpmu010_sdramhtc_set(CONFIG_SYS_FTPMU010_SDRAMHTC); +#endif /* __NDS32_N1213_43U1H__ */ +#endif + return 0; +} +#endif + +/* + * Breathe some life into the board... + * + * Initialize a serial port as console, and carry out some hardware + * tests. + * + * The first part of initialization is running from Flash memory; + * its main purpose is to initialize the RAM so that we + * can relocate the monitor code to RAM. + */ + +/* + * All attempts to come up with a "common" initialization sequence + * that works for all boards and architectures failed: some of the + * requirements are just _too_ different. To get rid of the resulting + * mess of board dependent #ifdef'ed code we now make the whole + * initialization sequence configurable to the user. + * + * The requirements for any new initalization function is simple: it + * receives a pointer to the "global data" structure as it's only + * argument, and returns an integer return code, where 0 means + * "continue" and != 0 means "fatal error, hang the system". + */ +typedef int (init_fnc_t)(void); + +init_fnc_t *init_sequence[] = { +#if defined(CONFIG_ARCH_CPU_INIT) + arch_cpu_init, /* basic arch cpu dependent setup */ +#endif +#if defined(CONFIG_PMU) || defined(CONFIG_PCU) + pmu_init, +#endif + board_init, /* basic board dependent setup */ +#if defined(CONFIG_USE_IRQ) + interrupt_init, /* set up exceptions */ +#endif + timer_init, /* initialize timer */ + env_init, /* initialize environment */ + init_baudrate, /* initialze baudrate settings */ + serial_init, /* serial communications setup */ + console_init_f, /* stage 1 init of console */ +#if defined(CONFIG_DISPLAY_BOARDINFO) + checkboard, /* display board info */ +#endif +#if defined(CONFIG_HARD_I2C) || defined(CONFIG_SOFT_I2C) + init_func_i2c, +#endif + dram_init, /* configure available RAM banks */ +#if defined(CONFIG_CMD_PCI) || defined(CONFIG_PCI) + nds32_pci_init, +#endif + display_dram_config, + NULL, +}; + +void start_andesboot(void) +{ + init_fnc_t **init_fnc_ptr; + char *s; +#if defined(CONFIG_VFD) || defined(CONFIG_LCD) + unsigned long addr; +#endif + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t *)(_andesboot_start - CONFIG_SYS_MALLOC_LEN - sizeof(gd_t)); + /* compiler optimization barrier needed for GCC >= 3.4 */ + __asm__ __volatile__("" : : : "memory"); + + memset((void *)gd, 0, sizeof(gd_t)); + gd->bd = (bd_t *)((char *)gd - sizeof(bd_t)); + memset(gd->bd, 0, sizeof(bd_t)); + + gd->flags |= GD_FLG_RELOC; + + for (init_fnc_ptr = init_sequence; *init_fnc_ptr; ++init_fnc_ptr) { + if ((*init_fnc_ptr)() != 0) + hang(); + } + + /* andesboot_start is defined in the board-specific linker script */ + mem_malloc_init(_andesboot_start - CONFIG_SYS_MALLOC_LEN, + CONFIG_SYS_MALLOC_LEN); + +#ifndef CONFIG_SYS_NO_FLASH + /* configure available FLASH banks */ + gd->bd->bi_flashstart = CONFIG_SYS_FLASH_BASE; + gd->bd->bi_flashsize = flash_init(); + gd->bd->bi_flashoffset = CONFIG_SYS_FLASH_BASE + gd->bd->bi_flashsize; + + if (gd->bd->bi_flashsize) + display_flash_config(gd->bd->bi_flashsize); +#endif /* CONFIG_SYS_NO_FLASH */ + +#ifdef CONFIG_VFD +# ifndef PAGE_SIZE +# define PAGE_SIZE 4096 +# endif + /* + * reserve memory for VFD display (always full pages) + */ + /* bss_end is defined in the board-specific linker script */ + addr = (__bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + vfd_setmem(addr); + gd->fb_base = addr; +#endif /* CONFIG_VFD */ + +#ifdef CONFIG_LCD + /* board init may have inited fb_base */ + if (!gd->fb_base) { +# ifndef PAGE_SIZE +# define PAGE_SIZE 4096 +# endif + /* + * reserve memory for LCD display (always full pages) + */ + /* bss_end is defined in the board-specific linker script */ + addr = (__bss_end + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1); + lcd_setmem(addr); + gd->fb_base = addr; + } +#endif /* CONFIG_LCD */ + +#if defined(CONFIG_CMD_NAND) + puts("NAND: "); + nand_init(); /* go init the NAND */ +#endif + +#if defined(CONFIG_CMD_ONENAND) + onenand_init(); +#endif + + /* initialize environment */ + env_relocate(); + +#ifdef CONFIG_VFD + /* must do this after the framebuffer is allocated */ + drv_vfd_init(); +#endif /* CONFIG_VFD */ + +#ifdef CONFIG_SERIAL_MULTI + serial_initialize(); +#endif + + /* IP Address */ + gd->bd->bi_ip_addr = getenv_IPaddr("ipaddr"); + + stdio_init(); /* get the devices list going. */ + + jumptable_init(); + +#if defined(CONFIG_API) + /* Initialize API */ + api_init(); +#endif + + console_init_r(); /* fully init console as a device */ + +#if defined(CONFIG_ARCH_MISC_INIT) + /* miscellaneous arch dependent initialisations */ + arch_misc_init(); +#endif +#if defined(CONFIG_MISC_INIT_R) + /* miscellaneous platform dependent initialisations */ + misc_init_r(); +#endif + + /* enable exceptions */ + enable_interrupts(); + + /* Perform network card initialisation if necessary */ + + /* Initialize from environment */ + s = getenv("loadaddr"); + if (s != NULL) + load_addr = simple_strtoul(s, NULL, 16); + +#if defined(CONFIG_CMD_NET) + s = getenv("bootfile"); + if (s != NULL) + copy_filename(BootFile, s, sizeof(BootFile)); +#endif + +#ifdef BOARD_LATE_INIT + board_late_init(); +#endif + +#ifdef CONFIG_GENERIC_MMC + puts("MMC: "); + mmc_initialize(gd->bd); +#endif + +#if defined(CONFIG_CMD_NET) +#if defined(CONFIG_NET_MULTI) + puts("Net: "); +#endif + eth_initialize(gd->bd); +#if defined(CONFIG_RESET_PHY_R) + debug("Reset Ethernet PHY\n"); + reset_phy(); +#endif +#endif + /* main_loop() can return to retry autoboot, if so just run it again. */ + for (;;) + main_loop(); + + /* NOTREACHED - no way out of command loop except booting */ +} + +void hang(void) +{ + puts("### ERROR ### Please RESET the board ###\n"); + for (;;) + ; +} diff --git a/arch/nds32/lib/bootm.c b/arch/nds32/lib/bootm.c new file mode 100644 index 0000000..b0a5a0d --- /dev/null +++ b/arch/nds32/lib/bootm.c @@ -0,0 +1,241 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + */ + +#include <common.h> +#include <command.h> +#include <image.h> +#include <u-boot/zlib.h> +#include <asm/byteorder.h> + +DECLARE_GLOBAL_DATA_PTR; + +#if defined(CONFIG_SETUP_MEMORY_TAGS) || \ + defined(CONFIG_CMDLINE_TAG) || \ + defined(CONFIG_INITRD_TAG) || \ + defined(CONFIG_SERIAL_TAG) || \ + defined(CONFIG_REVISION_TAG) +static void setup_start_tag(bd_t *bd); + +# ifdef CONFIG_SETUP_MEMORY_TAGS +static void setup_memory_tags(bd_t *bd); +# endif +static void setup_commandline_tag(bd_t *bd, char *commandline); + +# ifdef CONFIG_INITRD_TAG +static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end); +# endif +static void setup_end_tag(bd_t *bd); + +static struct tag *params; +#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */ + +int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) +{ + bd_t *bd = gd->bd; + char *s; + int machid = bd->bi_arch_number; + void (*theKernel)(int zero, int arch, uint params); + +#ifdef CONFIG_CMDLINE_TAG + char *commandline = getenv("bootargs"); +#endif + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + + theKernel = (void (*)(int, int, uint))images->ep; + + s = getenv("machid"); + if (s) { + machid = simple_strtoul(s, NULL, 16); + printf("Using machid 0x%x from environment\n", machid); + } + + show_boot_progress(15); + + debug("## Transferring control to Linux (at address %08lx) ...\n", + (ulong)theKernel); + +#if defined(CONFIG_SETUP_MEMORY_TAGS) || \ + defined(CONFIG_CMDLINE_TAG) || \ + defined(CONFIG_INITRD_TAG) || \ + defined(CONFIG_SERIAL_TAG) || \ + defined(CONFIG_REVISION_TAG) + setup_start_tag(bd); +#ifdef CONFIG_SERIAL_TAG + setup_serial_tag(¶ms); +#endif +#ifdef CONFIG_REVISION_TAG + setup_revision_tag(¶ms); +#endif +#ifdef CONFIG_SETUP_MEMORY_TAGS + setup_memory_tags(bd); +#endif +#ifdef CONFIG_CMDLINE_TAG + setup_commandline_tag(bd, commandline); +#endif +#ifdef CONFIG_INITRD_TAG + if (images->rd_start && images->rd_end) + setup_initrd_tag(bd, images->rd_start, images->rd_end); +#endif + setup_end_tag(bd); +#endif + + /* we assume that the kernel is in place */ + printf("\nStarting kernel ...\n\n"); + +#ifdef CONFIG_USB_DEVICE + { + extern void udc_disconnect(void); + udc_disconnect(); + } +#endif + + cleanup_before_linux(); + + theKernel(0, machid, bd->bi_boot_params); + /* does not return */ + + return 1; +} + + +#if defined(CONFIG_SETUP_MEMORY_TAGS) || \ + defined(CONFIG_CMDLINE_TAG) || \ + defined(CONFIG_INITRD_TAG) || \ + defined(CONFIG_SERIAL_TAG) || \ + defined(CONFIG_REVISION_TAG) +static void setup_start_tag(bd_t *bd) +{ + params = (struct tag *)bd->bi_boot_params; + + params->hdr.tag = ATAG_CORE; + params->hdr.size = tag_size(tag_core); + + params->u.core.flags = 0; + params->u.core.pagesize = 0; + params->u.core.rootdev = 0; + + params = tag_next(params); +} + + +#ifdef CONFIG_SETUP_MEMORY_TAGS +static void setup_memory_tags(bd_t *bd) +{ + int i; + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { + params->hdr.tag = ATAG_MEM; + params->hdr.size = tag_size(tag_mem32); + + params->u.mem.start = bd->bi_dram[i].start; + params->u.mem.size = bd->bi_dram[i].size; + + params = tag_next(params); + } +} +#endif /* CONFIG_SETUP_MEMORY_TAGS */ + + +static void setup_commandline_tag(bd_t *bd, char *commandline) +{ + char *p; + + if (!commandline) + return; + + /* eat leading white space */ + for (p = commandline; *p == ' '; p++) + ; + + /* skip non-existent command lines so the kernel will still + * use its default command line. + */ + if (*p == '\0') + return; + + params->hdr.tag = ATAG_CMDLINE; + params->hdr.size = + (sizeof(struct tag_header) + strlen(p) + 1 + 4) >> 2; + + strcpy(params->u.cmdline.cmdline, p) + ; + + params = tag_next(params); +} + + +#ifdef CONFIG_INITRD_TAG +static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end) +{ + /* an ATAG_INITRD node tells the kernel where the compressed + * ramdisk can be found. ATAG_RDIMG is a better name, actually. + */ + params->hdr.tag = ATAG_INITRD2; + params->hdr.size = tag_size(tag_initrd); + + params->u.initrd.start = initrd_start; + params->u.initrd.size = initrd_end - initrd_start; + + params = tag_next(params); +} +#endif /* CONFIG_INITRD_TAG */ + +#ifdef CONFIG_SERIAL_TAG +void setup_serial_tag(struct tag **tmp) +{ + struct tag *params = *tmp; + struct tag_serialnr serialnr; + void get_board_serial(struct tag_serialnr *serialnr); + + get_board_serial(&serialnr); + params->hdr.tag = ATAG_SERIAL; + params->hdr.size = tag_size(tag_serialnr); + params->u.serialnr.low = serialnr.low; + params->u.serialnr.high = serialnr.high; + params = tag_next(params); + *tmp = params; +} +#endif + +#ifdef CONFIG_REVISION_TAG +void setup_revision_tag(struct tag **in_params) +{ + u32 rev = 0; + u32 get_board_rev(void); + + rev = get_board_rev(); + params->hdr.tag = ATAG_REVISION; + params->hdr.size = tag_size(tag_revision); + params->u.revision.rev = rev; + params = tag_next(params); +} +#endif /* CONFIG_REVISION_TAG */ + + +static void setup_end_tag(bd_t *bd) +{ + params->hdr.tag = ATAG_NONE; + params->hdr.size = 0; +} + +#endif /* CONFIG_SETUP_MEMORY_TAGS || CONFIG_CMDLINE_TAG || CONFIG_INITRD_TAG */ diff --git a/arch/nds32/lib/interrupts.c b/arch/nds32/lib/interrupts.c new file mode 100644 index 0000000..c42ad2b --- /dev/null +++ b/arch/nds32/lib/interrupts.c @@ -0,0 +1,131 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke azu@sysgo.de + * + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/ptrace.h> +#include <asm/system.h> +#undef INTERRUPT_MODE + +extern void reset_cpu(ulong addr); + +static int int_flag; + +int irq_flags; /* needed by asm-nds32/system.h */ + +int GIE_STATUS(void) +{ + int ret; + + __asm__ __volatile__ ( + "mfsr $p0, $psw\n\t" + "andi %0, %0, 0x1\n\t" + : "=r" (ret) + : + : "memory" + ); + return ret; +} + +#ifdef CONFIG_USE_INTERRUPT + +/* enable interrupts */ +void enable_interrupts(void) +{ + local_irq_restore(int_flag); +} + +/* + * disable interrupts + * Return TRUE if GIE is enabled before we disable it. + */ +int disable_interrupts(void) +{ + + int gie_ori_status; + + gie_ori_status = GIE_STATUS(); + + local_irq_save(int_flag); + + return gie_ori_status; +} +#endif + +void bad_mode(void) +{ + panic("Resetting CPU ...\n"); + reset_cpu(0); +} + +void show_regs(struct pt_regs *regs) +{ + const char *processor_modes[] = {"USER", "SuperUser" , "HyperVisor"}; + + printf("\n"); + printf("pc : [<%08lx>] sp: [<%08lx>]\n" + "lp : %08lx gp : %08lx fp : %08lx\n", + regs->ipc, regs->sp, regs->lp, regs->gp, regs->fp); + printf("D1H: %08lx D1L: %08lx D0H: %08lx D0L: %08lx\n", + regs->d1hi, regs->d1lo, regs->d0hi, regs->d0lo); + printf("r27: %08lx r26: %08lx r25: %08lx r24: %08lx\n", + regs->r[27], regs->r[26], regs->r[25], regs->r[24]); + printf("r23: %08lx r22: %08lx r21: %08lx r20: %08lx\n", + regs->r[23], regs->r[22], regs->r[21], regs->r[20]); + printf("r19: %08lx r18: %08lx r17: %08lx r16: %08lx\n", + regs->r[19], regs->r[18], regs->r[17], regs->r[16]); + printf("r15: %08lx r14: %08lx r13: %08lx r12: %08lx\n", + regs->r[15], regs->r[14], regs->r[13], regs->r[12]); + printf("r11: %08lx r10: %08lx r9 : %08lx r8 : %08lx\n", + regs->r[11], regs->r[10], regs->r[9], regs->r[8]); + printf("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n", + regs->r[7], regs->r[6], regs->r[5], regs->r[4]); + printf("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n", + regs->r[3], regs->r[2], regs->r[1], regs->r[0]); + printf(" Interrupts %s Mode %s\n", + interrupts_enabled(regs) ? "on" : "off", + processor_modes[processor_mode(regs)]); +} + +void do_interruption(struct pt_regs *pt_regs, int EVIC_num) +{ + const char *interruption_type[] = { + "Reset", + "TLB Fill", + "TLB Not Present", + "TLB Misc", + "VLPT Miss", + "Cache Parity Error", + "Debug", + "General Exception", + "External Interrupt" + }; + + printf("%s\n", interruption_type[EVIC_num]); + show_regs(pt_regs); + bad_mode(); +}
Add standalone program related support for nds32 architecture.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- examples/standalone/nds32.lds | 64 +++++++++++++++++++++++++++++++++++++ examples/standalone/stubs.c | 17 +++++++++- examples/standalone/x86-testapp.c | 12 +++++++ 3 files changed, 92 insertions(+), 1 deletions(-) create mode 100644 examples/standalone/nds32.lds
diff --git a/examples/standalone/nds32.lds b/examples/standalone/nds32.lds new file mode 100644 index 0000000..c2ac107 --- /dev/null +++ b/examples/standalone/nds32.lds @@ -0,0 +1,64 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +OUTPUT_FORMAT("elf32-nds32", "elf32-nds32", "elf32-nds32") +OUTPUT_ARCH(nds32) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : + { + *(.text) + } + + . = ALIGN(4); + .data : { *(.data) } + + . = ALIGN(4); + .data : { *(.data) } + + . = ALIGN(4); + + .got : { + __got_start = .; + *(.got) + __got_end = .; + } + + . = ALIGN(4); + __bss_start = .; + .bss : { *(.bss) } + __bss_end = .; + + . = ALIGN(4); + .rela.text : { *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) } + + _end = .; + + . = 0x02000000; + .u_boot_ohci_data_st : { *(.u_boot_ohci_data_st) } +} diff --git a/examples/standalone/stubs.c b/examples/standalone/stubs.c index 2d2e709..b711926 100644 --- a/examples/standalone/stubs.c +++ b/examples/standalone/stubs.c @@ -167,8 +167,23 @@ gd_t *global_data; " jmp %%g1\n" \ " nop\n" \ : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "g1" ); - +#elif defined(CONFIG_NDS32) +/* + * r16 holds the pointer to the global_data. gp is call clobbered. + * not support reduced register (16 GPR). + */ +#define EXPORT_FUNC(x) \ + asm volatile ( \ +" .globl " #x "\n" \ +#x ":\n" \ +" lwi $r16, [$gp + (%0)]\n" \ +" lwi $r16, [$r16 + (%1)]\n" \ +" jr $r16\n" \ + : : "i"(offsetof(gd_t, jt)), "i"(XF_ ## x * sizeof(void *)) : "$r16"); #else +/*" addi $sp, $sp, -24\n" \ +" br $r16\n" */ + #error stubs definition missing for this architecture #endif
diff --git a/examples/standalone/x86-testapp.c b/examples/standalone/x86-testapp.c index e8603d9..a4ac6f8 100644 --- a/examples/standalone/x86-testapp.c +++ b/examples/standalone/x86-testapp.c @@ -52,6 +52,16 @@ asm volatile ( \ " lw $25, %1($25)\n" \ " jr $25\n" \ : : "i"(offsetof(xxx_t, pfunc)), "i"(XF_ ## x * sizeof(void *)) : "t9"); +#elif defined(__nds32__) +#define EXPORT_FUNC(x) \ +asm volatile ( \ +" .globl mon_" #x "\n" \ +"mon_" #x ":\n" \ +" lwi $r16, [$gp + (%0)]\n" \ +" lwi $r16, [$r16 + (%1)]\n" \ +" jr $r16\n" \ + : : "i"(offsetof(xxx_t, pfunc)), "i"(XF_ ## x * sizeof(void *)) : "$r16"); + #else #error [No stub code for this arch] #endif @@ -72,6 +82,8 @@ int main(void) register volatile xxx_t *pq asm("r8"); #elif defined(__mips__) register volatile xxx_t *pq asm("k0"); +#elif defined(__nds32__) + register volatile xxx_t *pq asm("$r16"); #endif char buf[32];
Add support of NDS32 to common commands bdinfo, bootm, and image format.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- common/cmd_bdinfo.c | 28 +++++++++++++++++++++++++++- common/cmd_bootm.c | 2 ++ common/image.c | 1 + include/image.h | 5 +++++ 4 files changed, 35 insertions(+), 1 deletions(-)
diff --git a/common/cmd_bdinfo.c b/common/cmd_bdinfo.c index bba7374..908091d 100644 --- a/common/cmd_bdinfo.c +++ b/common/cmd_bdinfo.c @@ -411,13 +411,39 @@ int do_bdinfo ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) return 0; }
+#elif defined(CONFIG_NDS32) + +int do_bdinfo(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) +{ + int i; + bd_t *bd = gd->bd; + + print_num("arch_number", bd->bi_arch_number); + print_num("env_t", (ulong)bd->bi_env); + print_num("boot_params", (ulong)bd->bi_boot_params); + + for (i = 0; i < CONFIG_NR_DRAM_BANKS; ++i) { + print_num("DRAM bank", i); + print_num("-> start", bd->bi_dram[i].start); + print_num("-> size", bd->bi_dram[i].size); + } + +#if defined(CONFIG_CMD_NET) + print_eth(0); + printf("ip_addr = %pI4\n", &bd->bi_ip_addr); +#endif + printf("baudrate = %d bps\n", bd->bi_baudrate); + + return 0; +} + #else #error "a case for this architecture does not exist!" #endif
static void print_num(const char *name, ulong value) { - printf ("%-12s= 0x%08lX\n", name, value); + printf("%-12s= 0x%08lX\n", name, value); }
#if !(defined(CONFIG_ARM) || defined(CONFIG_M68K)) || defined(CONFIG_CMD_NET) diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index 18019d6..59fbc45 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -187,6 +187,8 @@ void arch_preboot_os(void) __attribute__((weak, alias("__arch_preboot_os"))); #define IH_INITRD_ARCH IH_ARCH_SH #elif defined(__sparc__) #define IH_INITRD_ARCH IH_ARCH_SPARC +#elif defined(__nds32__) + #define IH_INITRD_ARCH IH_ARCH_NDS32 #else # error Unknown CPU type #endif diff --git a/common/image.c b/common/image.c index f63a2ff..afe5957 100644 --- a/common/image.c +++ b/common/image.c @@ -93,6 +93,7 @@ static const table_entry_t uimage_arch[] = { { IH_ARCH_SPARC64, "sparc64", "SPARC 64 Bit", }, { IH_ARCH_BLACKFIN, "blackfin", "Blackfin", }, { IH_ARCH_AVR32, "avr32", "AVR32", }, + { IH_ARCH_NDS32, "nds32", "NDS32", }, { -1, "", "", }, };
diff --git a/include/image.h b/include/image.h index 005e0d2..1a2be5e 100644 --- a/include/image.h +++ b/include/image.h @@ -106,6 +106,7 @@ #define IH_ARCH_BLACKFIN 16 /* Blackfin */ #define IH_ARCH_AVR32 17 /* AVR32 */ #define IH_ARCH_ST200 18 /* STMicroelectronics ST200 */ +#define IH_ARCH_NDS32 19 /* ANDES Technology - NDS32 */
/* * Image Types @@ -504,6 +505,8 @@ static inline int image_check_target_arch (const image_header_t *hdr) if (!image_check_arch (hdr, IH_ARCH_SH)) #elif defined(__sparc__) if (!image_check_arch (hdr, IH_ARCH_SPARC)) +#elif defined(__nds32__) + if (!image_check_arch(hdr, IH_ARCH_NDS32)) #else # error Unknown CPU type #endif @@ -656,6 +659,8 @@ static inline int fit_image_check_target_arch (const void *fdt, int node) if (!fit_image_check_arch (fdt, node, IH_ARCH_SH)) #elif defined(__sparc__) if (!fit_image_check_arch (fdt, node, IH_ARCH_SPARC)) +#elif defined(__nds32__) + if (!fit_image_check_arch(fdt, node, IH_ARCH_NDS32)) #else # error Unknown CPU type #endif
Add evaluation board "adp-ag101" aconfiguration file adp-ag101.h. Add adp-ag101.c board config and related settings. Add board adp-ag101 into boards.cfg
Signed-off-by: Macpaul Lin macpaul@andestech.com --- Changes for v1-v4: - code clean up Changes for v5-v6: - Refine the definitions and parameters about CLK, AHB controller, SDRAM controller, Static memory controllers. - Add APB_CLK, AHB_CLK, SYS_CLK definitions for backward compatible. - ftahbc010: - Update include path of ftahbc010. - ftsdmc021: - Update include path of ftsdmc021. - ftsmc020: - Update include path of ftsmc020. - ftwdt010: - Fix WDT define and update include path. - Fix ftwdt010 for hardware reset. - ftpmu010: - Remove duplicate PMU definitions. - Add related configurations. - Fix MAX malloc len and fix saveenv. - clean up. Changes for v7: - adp-ag101.c - Fix Makefile and remove config.mk - adp-ag101.h: - clean up. - Move CONFIG_SYS_TEXT_BASE from board/config.mk.
MAINTAINERS | 11 + MAKEALL | 6 + board/AndesTech/adp-ag101/Makefile | 57 +++++ board/AndesTech/adp-ag101/adp-ag101.c | 81 +++++++ boards.cfg | 1 + include/configs/adp-ag101.h | 378 +++++++++++++++++++++++++++++++++ 6 files changed, 534 insertions(+), 0 deletions(-) create mode 100644 board/AndesTech/adp-ag101/Makefile create mode 100644 board/AndesTech/adp-ag101/adp-ag101.c create mode 100644 include/configs/adp-ag101.h
diff --git a/MAINTAINERS b/MAINTAINERS index 8af9b09..0390c40 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1123,5 +1123,16 @@ Chong Huang chuang@ucrobotics.com bf525-ucr2 BF525
######################################################################### +# NDS32 Systems: # +# # +# Maintainer Name, Email Address # +# Board CPU # +######################################################################### + +Macpaul Lin macpaul@andestech.com + + ADP-AG101 N1213 (AG101 SoC) + +######################################################################### # End of MAINTAINERS list # ######################################################################### diff --git a/MAKEALL b/MAKEALL index e1b928f..286d158 100755 --- a/MAKEALL +++ b/MAKEALL @@ -610,6 +610,12 @@ LIST_sh="$(boards_by_arch sh)"
LIST_sparc="$(boards_by_arch sparc)"
+######################################################################### +## NDS32 Systems +######################################################################### + +LIST_nds32="$(boards_by_arch nds32)" + #-----------------------------------------------------------------------
build_target() { diff --git a/board/AndesTech/adp-ag101/Makefile b/board/AndesTech/adp-ag101/Makefile new file mode 100644 index 0000000..5a403b1 --- /dev/null +++ b/board/AndesTech/adp-ag101/Makefile @@ -0,0 +1,57 @@ +# +# Copyright (C) 2011 Andes Technology Corporation +# Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com +# Macpaul Lin, Andes Technology Corporation macpaul@andestech.com +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).o + +COBJS := adp-ag101.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak $(obj).depend + +ifdef CONFIG_SYS_LDSCRIPT +LDSCRIPT := $(subst ",,$(CONFIG_SYS_LDSCRIPT)) +else +LDSCRIPT := $(SRCTREE)/arch/$(ARCH)/cpu/$(CPU)/u-boot.lds +endif + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/AndesTech/adp-ag101/adp-ag101.c b/board/AndesTech/adp-ag101/adp-ag101.c new file mode 100644 index 0000000..b31b785 --- /dev/null +++ b/board/AndesTech/adp-ag101/adp-ag101.c @@ -0,0 +1,81 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <common.h> +#include <netdev.h> +#include <asm/io.h> + +#include <faraday/ftsmc020.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Miscellaneous platform dependent initializations + */ + +int board_init(void) +{ + /* + * refer to BOOT_PARAMETER_PA_BASE within + * "linux/arch/nds32/include/asm/misc_spec.h" + */ + gd->bd->bi_arch_number = MACH_TYPE_ADPAG101; + gd->bd->bi_boot_params = PHYS_SDRAM_0 + 0x400; + + ftsmc020_init(); /* initialize Flash */ + return 0; +} + +int dram_init(void) +{ + unsigned long sdram_base = PHYS_SDRAM_0; + unsigned long expected_size = PHYS_SDRAM_0_SIZE; + unsigned long actual_size; + + actual_size = get_ram_size((void *)sdram_base, expected_size); + + gd->bd->bi_dram[0].start = sdram_base; + gd->bd->bi_dram[0].size = actual_size; + + if (expected_size != actual_size) + printf("Warning: Only %lu of %lu MiB SDRAM is working\n", + actual_size >> 20, expected_size >> 20); + + return 0; +} + +int board_eth_init(bd_t *bd) +{ + return ftmac100_initialize(bd); +} + +ulong board_flash_get_legacy(ulong base, int banknum, flash_info_t *info) +{ + if (banknum == 0) { /* non-CFI boot flash */ + info->portwidth = FLASH_CFI_8BIT; + info->chipwidth = FLASH_CFI_BY8; + info->interface = FLASH_CFI_X8; + return 1; + } else + return 0; +} diff --git a/boards.cfg b/boards.cfg index a45bd83..e3d1c16 100644 --- a/boards.cfg +++ b/boards.cfg @@ -245,6 +245,7 @@ vct_platinumavc mips mips32 vct microna vct_platinumavc_small mips mips32 vct micronas - vct:VCT_PLATINUMAVC,VCT_SMALL_IMAGE vct_platinumavc_onenand mips mips32 vct micronas - vct:VCT_PLATINUMAVC,VCT_ONENAND vct_platinumavc_onenand_small mips mips32 vct micronas - vct:VCT_PLATINUMAVC,VCT_ONENAND,VCT_SMALL_IMAGE +adp-ag101 nds32 n1213 adp-ag101 AndesTech ag101 PCI5441 nios2 nios2 pci5441 psyent PK1C20 nios2 nios2 pk1c20 psyent EVB64260 powerpc 74xx_7xx evb64260 - - EVB64260 diff --git a/include/configs/adp-ag101.h b/include/configs/adp-ag101.h new file mode 100644 index 0000000..9e1d50e --- /dev/null +++ b/include/configs/adp-ag101.h @@ -0,0 +1,378 @@ +/* + * Copyright (C) 2011 Andes Technology Corporation + * Shawn Lin, Andes Technology Corporation nobuhiro@andestech.com + * Macpaul Lin, Andes Technology Corporation macpaul@andestech.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef __CONFIG_H +#define __CONFIG_H + +#include <asm/arch/ag101.h> + +/* + * CPU and Board Configuration Options + */ +#define CONFIG_ADP_AG101 + +#define CONFIG_USE_INTERRUPT + +#define CONFIG_SKIP_LOWLEVEL_INIT + +/* + * Timer + */ + +/* + * ag101: CONFIG_SYS_HZ: APB_CLK (ag101 original timer clock frequency) + * + * According to the discussion in u-boot mailing list before, + * CONFIG_SYS_HZ at 1000 is mandatory. + */ + +/* + * APB_CLK, AHB_CLK, SYS_CLK are from an old configuration + * in the earlist nds32 bootloader. + * + * CONFIG_SYS_HZ = APB_CLK = SYS_CLK = CONFIG_SYS_CLK_FREQ /2 + * + * Since the power management (PWM) Timer 4 uses a counter of + * 15625 for 10 ms, so we need it to wrap 100 times + * (total 1562500) to get 1 sec. + * + * #define CONFIG_HZ 1562500 + * 1562500*25=3906250 + */ +#define SYS_CLK CONFIG_SYS_CLK_FREQ +#define AHB_CLK SYS_CLK +#define APB_CLK (SYS_CLK / 2) + +#define CONFIG_SYS_HZ 1000 +#define VERSION_CLOCK CONFIG_SYS_CLK_FREQ + +#define CONFIG_SYS_TEXT_BASE 0x03200000 + +/* + * System Clock + * Suggested frequency lists: + * 16000000 -> 16.000000 MHz + * 18432000 -> 18.432000 MHz + * 22118400 -> 22.118400 MHz + * 83000000 -> 83.000000 MHz + * 33000000 -> 33.000000 MHz + * 36864000 -> 36.864000 MHz + * 48000000 -> 48.000000 MHz CONFIG_ADP_AG101 + * 39062500 -> 39.062500 MHz CONFIG_ADP_AG101P + */ +#ifdef CONFIG_ADP_AG101 +#define CONFIG_SYS_CLK_FREQ 48000000 +#endif + +/* + * Use Externel CLOCK or PCLK + */ +#undef CONFIG_FTRTC010_EXTCLK + +#ifndef CONFIG_FTRTC010_EXTCLK +#define CONFIG_FTRTC010_PCLK +#endif + +#ifdef CONFIG_FTRTC010_EXTCLK +#define TIMER_CLOCK 32768 /* CONFIG_FTRTC010_EXTCLK */ +#else +#define TIMER_CLOCK CONFIG_SYS_HZ /* CONFIG_FTRTC010_PCLK */ +#endif + +#define TIMER_LOAD_VAL 0xffffffff + +/* + * Real Time Clock + */ +#define CONFIG_RTC_FTRTC010 + +/* + * Real Time Clock Divider + * RTC_DIV_COUNT (OSC_CLK/OSC_5MHZ) + */ +#ifdef CONFIG_ADP_AG101 +#define OSC_5MHZ (5*1000000) +#define OSC_CLK (2*OSC_5MHZ) +#define RTC_DIV_COUNT (OSC_CLK/OSC_5MHZ) +#endif + +/* + * Serial console configuration + */ + +/* FTUART is a high speed NS 16C550A compatible UART */ +#define CONFIG_BAUDRATE 38400 +#define CONFIG_CONS_INDEX 1 +#define CONFIG_SYS_NS16550 +#define CONFIG_SYS_NS16550_SERIAL +#define CONFIG_SYS_NS16550_COM1 CONFIG_FTUART010_02_BASE /* 0x99600000 */ +#define CONFIG_SYS_NS16550_REG_SIZE -4 + +#ifdef CONFIG_ADP_AG101 +#define CONFIG_SYS_NS16550_CLK ((46080000 * 20) / 25) /* AG101 */ +#endif + +/* valid baudrates */ +#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 } + +/* + * Ethernet + */ +#define CONFIG_NET_MULTI +#define CONFIG_FTMAC100 + +#define CONFIG_BOOTDELAY 3 + +/* + * Command line configuration. + */ +#include <config_cmd_default.h> + +#define CONFIG_CMD_CACHE +#define CONFIG_CMD_DATE +#define CONFIG_CMD_PING + +/* + * Miscellaneous configurable options + */ +#define CONFIG_SYS_LONGHELP /* undef to save memory */ +#define CONFIG_SYS_PROMPT "NDS32 # " /* Monitor Command Prompt */ +#define CONFIG_SYS_CBSIZE 256 /* Console I/O Buffer Size */ + +/* Print Buffer Size */ +#define CONFIG_SYS_PBSIZE \ + (CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16) + +/* max number of command args */ +#define CONFIG_SYS_MAXARGS 16 + +/* Boot Argument Buffer Size */ +#define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE + +/* + * Stack sizes + * + * The stack sizes are set up in start.S using the settings below + */ +#define CONFIG_STACKSIZE (128 * 1024) /* regular stack */ + +/* + * Size of malloc() pool + */ +/* 512kB is suggested, (CONFIG_ENV_SIZE + 128 * 1024) was not enough */ +#define CONFIG_SYS_MALLOC_LEN (512 << 10) + +/* + * size in bytes reserved for initial data + */ +#define CONFIG_SYS_GBL_DATA_SIZE 128 + +/* + * AHB Controller configuration + */ +#define CONFIG_FTAHBC020S + +#ifdef CONFIG_FTAHBC020S +#include <faraday/ftahbc020s.h> + +#define CONFIG_SYS_FTAHBC020S_SLAVE_BSR_BASE 0x100 + +#define CONFIG_SYS_FTAHBC020S_SLAVE_BSR_6 (FTAHBC020S_SLAVE_BSR_BASE(CONFIG_SYS_FTAHBC020S_SLAVE_BSR_BASE) | \ + FTAHBC020S_SLAVE_BSR_SIZE(FTAHBC020S_SLAVE_BSR_SIZE_2G)) +#endif + +/* + * Watchdog + */ +#define CONFIG_FTWDT010_WATCHDOG + +/* + * PMU Power controller configuration + */ +#define CONFIG_PMU +#define CONFIG_FTPMU010_POWER + +#ifdef CONFIG_FTPMU010_POWER +#include <faraday/ftpmu010.h> +#define CONFIG_SYS_FTPMU010_PDLLCR0_HCLKOUTDIS 0x0E +#define CONFIG_SYS_FTPMU010_SDRAMHTC (FTPMU010_SDRAMHTC_EBICTRL_DCSR | \ + FTPMU010_SDRAMHTC_EBIDATA_DCSR | \ + FTPMU010_SDRAMHTC_SDRAMCS_DCSR | \ + FTPMU010_SDRAMHTC_SDRAMCTL_DCSR | \ + FTPMU010_SDRAMHTC_CKE_DCSR | \ + FTPMU010_SDRAMHTC_DQM_DCSR | \ + FTPMU010_SDRAMHTC_SDCLK_DCSR) +#endif + +/* + * SDRAM controller configuration + */ +#define CONFIG_FTSDMC021 + +#ifdef CONFIG_FTSDMC021 +#include <faraday/ftsdmc021.h> + +#define CONFIG_SYS_FTSDMC021_TP1 (FTSDMC021_TP1_TRP(1) | \ + FTSDMC021_TP1_TRCD(1) | \ + FTSDMC021_TP1_TRF(3) | \ + FTSDMC021_TP1_TWR(1) | \ + FTSDMC021_TP1_TCL(2)) + +#define CONFIG_SYS_FTSDMC021_TP2 (FTSDMC021_TP2_INI_PREC(4) | \ + FTSDMC021_TP2_INI_REFT(8) | \ + FTSDMC021_TP2_REF_INTV(0x180)) + +#define CONFIG_SYS_FTSDMC021_CR1 (FTSDMC021_CR1_DDW(2) | \ + FTSDMC021_CR1_DSZ(3) | \ + FTSDMC021_CR1_MBW(2) | \ + FTSDMC021_CR1_BNKSIZEF(6)) + +#define CONFIG_SYS_FTSDMC021_CR2 (FTSDMC021_CR2_IPREC | \ + FTSDMC021_CR2_IREF | \ + FTSDMC021_CR2_ISMR) + +#define CONFIG_SYS_FTSDMC021_BANK0_BASE CONFIG_SYS_FTAHBC020S_SLAVE_BSR_BASE +#define CONFIG_SYS_FTSDMC021_BANK0_BSR (FTSDMC021_BANK_ENABLE | \ + CONFIG_SYS_FTSDMC021_BANK0_BASE) + +#endif + +/* + * Physical Memory Map + */ +#define CONFIG_NR_DRAM_BANKS 1 /* we have 1 bank of DRAM */ +#define PHYS_SDRAM_0 0x00000000 /* SDRAM Bank #1 */ +#define PHYS_SDRAM_0_SIZE 0x04000000 /* 64 MB */ + +/* + * Load address and memory test area should agree with + * board/faraday/a320/config.mk. Be careful not to overwrite U-boot itself. + */ +#define CONFIG_SYS_LOAD_ADDR 0x0CF00000 + +/* memtest works on 63 MB in DRAM */ +#define CONFIG_SYS_MEMTEST_START 0x00000000 +#define CONFIG_SYS_MEMTEST_END 0x00200000 + +/* + * Static memory controller configuration + */ +#define CONFIG_FTSMC020 + +#ifdef CONFIG_FTSMC020 +#include <faraday/ftsmc020.h> + +#define CONFIG_SYS_FTSMC020_CONFIGS { \ + { FTSMC020_BANK0_CONFIG, FTSMC020_BANK0_TIMING, }, \ + { FTSMC020_BANK1_CONFIG, FTSMC020_BANK1_TIMING, }, \ +} + +#ifdef CONFIG_ADP_AG101 +/* + * There are 2 bank connected to FTSMC020 on ADP_AG101 + * BANK0: FLASH/ROM (SW5, J16), BANK1: OnBoard SDRAM. + * + * Note: + * FLASH on ADP_AG101P (FPGA version of ADP_AG101) is connected to BANK1 + * Just disalbe the other BANK to avoid detection error. + */ + +/* This FTSMC020_BANK1_SDRAM was used in lowlevel_init.S */ +#define FTSMC020_BANK1_SDRAM_CONFIG (FTSMC020_BANK_ENABLE | \ + FTSMC020_BANK_SIZE_32M | \ + FTSMC020_BANK_MBW_32) + +#define FTSMC020_BANK1_SDRAM_TIMING (FTSMC020_TPR_RBE | \ + FTSMC020_TPR_AST(1) | \ + FTSMC020_TPR_CTW(1) | \ + FTSMC020_TPR_ATI(1) | \ + FTSMC020_TPR_AT2(1) | \ + FTSMC020_TPR_WTC(1) | \ + FTSMC020_TPR_AHT(1) | \ + FTSMC020_TPR_TRNA(1)) + +#define FTSMC020_BANK1_CONFIG FTSMC020_BANK1_SDRAM_CONFIG +#define FTSMC020_BANK1_TIMING FTSMC020_BANK1_SDRAM_TIMING + +/* + * This FTSMC020_BANK0_CONFIG indecates the setting of BANK0 (FLASH) + * PHYS_FLASH_1 should be 0x400000 (13 bits to store addr, 0x1000000) + */ +#define FTSMC020_BANK0_CONFIG (FTSMC020_BANK_ENABLE | \ + FTSMC020_BANK_BASE(PHYS_FLASH_1) | \ + FTSMC020_BANK_SIZE_32M | \ + FTSMC020_BANK_MBW_32) + +#define FTSMC020_BANK0_TIMING (FTSMC020_TPR_AST(3) | \ + FTSMC020_TPR_CTW(3) | \ + FTSMC020_TPR_ATI(0xf) | \ + FTSMC020_TPR_AT2(3) | \ + FTSMC020_TPR_WTC(3) | \ + FTSMC020_TPR_AHT(3) | \ + FTSMC020_TPR_TRNA(0xf)) +#endif /* CONFIG_ADP_AG101 */ +#endif /* CONFIG_FTSMC020 */ + +/* + * FLASH and environment organization + */ + +/* use CFI framework */ +#define CONFIG_SYS_FLASH_CFI +#define CONFIG_FLASH_CFI_DRIVER +#define CONFIG_SYS_FLASH_CFI_WIDTH FLASH_CFI_16BIT +#define CONFIG_SYS_FLASH_USE_BUFFER_WRITE + +/* support JEDEC */ +/* Do not use CONFIG_FLASH_CFI_LEGACY to detect on board flash */ +#define PHYS_FLASH_1 0x80400000 + +#define CONFIG_SYS_FLASH_BASE PHYS_FLASH_1 +#define CONFIG_SYS_FLASH_BANKS_LIST { PHYS_FLASH_1, } +#define CONFIG_SYS_MONITOR_BASE PHYS_FLASH_1 + +#define CONFIG_SYS_FLASH_ERASE_TOUT 120000 /* TO for Flash Erase (ms) */ +#define CONFIG_SYS_FLASH_WRITE_TOUT 500 /* TO for Flash Write (ms) */ + +/* max number of memory banks */ +/* + * There are 4 banks supported for this Controller, + * but we have only 1 bank connected to flash on board + */ +#define CONFIG_SYS_MAX_FLASH_BANKS 1 + +/* max number of sectors on one chip */ +#define CONFIG_FLASH_SECTOR_SIZE (0x10000*2*2) +#define CONFIG_ENV_SECT_SIZE CONFIG_FLASH_SECTOR_SIZE +#define CONFIG_SYS_MAX_FLASH_SECT 128 + +/* environments */ +#define CONFIG_ENV_IS_IN_FLASH +#define CONFIG_ENV_ADDR (CONFIG_SYS_MONITOR_BASE + 0x1C0000) +#define CONFIG_ENV_SIZE 8192 +#define CONFIG_ENV_OVERWRITE + +/* relocation parameters */ +#define CONFIG_SYS_RELO_ADDR 0x10000000 + +#endif /* __CONFIG_H */
participants (1)
-
Macpaul Lin