Add nds32 architecture with include header files support.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- arch/nds32/include/asm/andesboot.h | 224 +++++++++++++++++++++ arch/nds32/include/asm/atomic.h | 121 ++++++++++++ arch/nds32/include/asm/bitops.h | 148 ++++++++++++++ arch/nds32/include/asm/byteorder.h | 36 ++++ arch/nds32/include/asm/config.h | 24 +++ arch/nds32/include/asm/global_data.h | 84 ++++++++ arch/nds32/include/asm/io.h | 352 ++++++++++++++++++++++++++++++++++ arch/nds32/include/asm/memory.h | 141 ++++++++++++++ arch/nds32/include/asm/posix_types.h | 85 ++++++++ arch/nds32/include/asm/processor.h | 145 ++++++++++++++ arch/nds32/include/asm/ptrace.h | 51 +++++ arch/nds32/include/asm/ptregs.h | 83 ++++++++ arch/nds32/include/asm/setup.h | 274 ++++++++++++++++++++++++++ arch/nds32/include/asm/string.h | 57 ++++++ arch/nds32/include/asm/types.h | 84 ++++++++ arch/nds32/include/asm/u-boot.h | 72 +++++++ arch/nds32/include/asm/unaligned.h | 35 ++++ 17 files changed, 2016 insertions(+), 0 deletions(-) create mode 100644 arch/nds32/include/asm/andesboot.h create mode 100644 arch/nds32/include/asm/atomic.h 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/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/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/ptregs.h create mode 100644 arch/nds32/include/asm/setup.h create mode 100644 arch/nds32/include/asm/string.h create mode 100644 arch/nds32/include/asm/types.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/andesboot.h b/arch/nds32/include/asm/andesboot.h new file mode 100644 index 0000000..d177099 --- /dev/null +++ b/arch/nds32/include/asm/andesboot.h @@ -0,0 +1,224 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke azu@sysgo.de + * + * Copyright (C) 2006 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 _ANDESBOOT_H_ +#define _ANDESBOOT_H_ 1 + +#undef _LINUX_CONFIG_H +#define _LINUX_CONFIG_H 1 /* avoid reading Linux autoconf.h file */ +#include <config.h> +#include <asm/types.h> +#include <asm/u-boot.h> +#include <stdarg.h> +#include <common.h> +#include <flash.h> +#include <image.h> + +#ifdef DEBUG +#define debug(fmt,args...) printf (fmt ,##args) +#else +#define debug(fmt,args...) +#endif + +/* + * The environment storages is simply a list of '\0'-terminated + * "name=value" strings, the end of the list marked by a double '\0'. + * New entries are always added at the end. Deleting an entry shifts + * the remaining entries to the front. Replacing an entry is a + * combination of deleting the old and adding the new value. + * + * The environment is preceeded by a 32 bit CRC over the data part. + */ + +#define bi_env_data bi_env->data +#define bi_env_crc bi_env->crc + +/* common/crc32.c */ +//uint32_t crc32 (uint32_t, const unsigned char *, uint); +//uint32_t crc32_no_comp(uint32_t crc, const Bytef *buf, uInt len); + +/* + * Don't define some stuff private to andesboot target code + */ +#ifndef HOST_TOOLS + +/* board/.../env.c */ +int board_env_getchar(bd_t * bd, int index, uchar *c); +int board_env_save (bd_t * bd, env_t *data, int size); +int board_env_copy (bd_t * bd, env_t *data, int size); +uchar * board_env_getaddr(bd_t * bd, int index); + +/* + * Function Prototypes + */ +void hang (void); +void start_andesboot (void); +void main_loop (void); +int run_command (const char *cmd, int flag); +int readline (const char *const prompt); +void reset_cmd_timeout(void); + +/* board/.../... */ +int board_init(bd_t *); +int dram_init(bd_t *bd); + +/* common/display_options.c */ +void display_banner(bd_t *bd); +void display_dram_config(bd_t *bd); +void display_flash_config(ulong size); + +/* common/cmd_nvedit.c */ +//int env_init (void); +void env_relocate (void); +char *getenv (char *); +int setenv (char *, char *); + +/* $(CPU)/serial.c */ +int serial_init (void); +void serial_setbrg(void); +void serial_putc (const char); +void serial_puts (const char *); +void serial_addr (unsigned int); +int serial_getc (void); +int serial_tstc (void); + +/* common/string.c */ +char * strcpy (char * dest,const char *src); +char * strncpy (char * dest,const char *src, size_t count); +size_t strlen (const char *); +size_t strnlen (const char * s, size_t count); +int strncmp (const char * cs, const char * ct, size_t count); +int strcmp (const char * cs, const char * ct); +void * memcpy (void * dest, const void *src, size_t count); +int memcmp (const void * dest, const void *src, size_t count); +void * memset (void * s, int c, size_t count); + +void * memmove (void * dest, const void *src, size_t count); +char * strchr (const char * s, int c); + +/* common/vsprintf.c */ +ulong simple_strtoul (const char *cp,char **endp,unsigned int base); +long simple_strtol (const char *cp,char **endp,unsigned int base); +void panic (const char *fmt, ...); +int sprintf (char * buf, const char *fmt, ...); +int vsprintf (char *buf, const char *fmt, va_list args); + +void udelay (unsigned long); + +int ctrlc (void); +int had_ctrlc (void); +void clear_ctrlc (void); +int disable_ctrlc (int); + +int console_assign (int file, char *devname); + +/* */ +int icache_status (void); +void icache_enable (void); +void icache_disable(void); +int dcache_status (void); +void dcache_enable (void); +void dcache_disable(void); + +/* common/cmd_bootm.c */ +void print_image_hdr (image_header_t *hdr); + +/* cpu/.../interrupt.c */ +void enable_interrupts (void); +int disable_interrupts (void); +int interrupt_init (void); +void reset_timer (void); +ulong get_timer (ulong base); +void set_timer (ulong t); +void reset_timer_masked (void); +ulong get_timer_masked (void); +void udelay_masked (unsigned long usec); + +/* cpu/.../cpu.c */ +void cpu_init(void); +void cleanup_before_linux(void); + +extern ulong load_addr; + +/* 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 */ + +/* + * STDIO based functions (can always be used) + */ + +/* serial stuff */ +void serial_printf (const char *fmt, ...); + +/* stdin */ +int getc(void); +int tstc(void); + +/* stdout */ +void putc(const char c); +void puts(const char *s); +void printf(const char *fmt, ...); + +/* stderr */ +#define eputc(c) fputc(stderr, c) +#define eputs(s) fputs(stderr, s) +#define eprintf(fmt,args...) fprintf(stderr,fmt ,##args) + +/* + * FILE based functions (can only be used AFTER relocation!) + */ + +#define stdin 0 +#define stdout 1 +#define stderr 2 +#define MAX_FILES 3 + +void fprintf(int file, const char *fmt, ...); +void fputs(int file, const char *s); +void fputc(int file, const char c); +int ftstc(int file); +int fgetc(int file); + +/* Byte swapping stuff */ +#define SWAP16(x) ((((x) & 0xff) << 8) | ((x) >> 8)) +#define SWAP16c(x) ((((x) & 0xff) << 8) | ((x) >> 8)) +#define SWAP32(x) ( \ + (((x) >> 24) & 0x000000ff) | \ + (((x) >> 8) & 0x0000ff00) | \ + (((x) << 8) & 0x00ff0000) | \ + (((x) << 24) & 0xff000000) ) + +#endif /* HOST_TOOLS */ + +#endif /* _ANDESBOOT_H_ */ diff --git a/arch/nds32/include/asm/atomic.h b/arch/nds32/include/asm/atomic.h new file mode 100644 index 0000000..dede681 --- /dev/null +++ b/arch/nds32/include/asm/atomic.h @@ -0,0 +1,121 @@ +/* + * linux/include/asm-nds32/atomic.h + * + * Copyright (c) 1996 Russell King. + * Copyright (C) 2006 Andes Technology Corporation + * + * 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 + * 13-04-1997 RMK Made functions atomic! + * 07-12-1997 RMK Upgraded for v2.1. + * 26-08-1998 PJB Added #ifdef __KERNEL__ + */ + +/* + * CAUTION: + * - do not implement for NDS32 Arch yet. + */ + +#if 0 +#ifndef __ASM_NDS_ATOMIC_H +#define __ASM_NDS_ATOMIC_H +#include <linux/config.h> + +#ifdef CONFIG_SMP +#error SMP not supported +#endif + +typedef struct { volatile int counter; } atomic_t; + +#define ATOMIC_INIT(i) { (i) } + +#ifdef __KERNEL__ +//#include <asm/proc/system.h> + +#define atomic_read(v) ((v)->counter) +#define atomic_set(v,i) (((v)->counter) = (i)) + +static inline void atomic_add(int i, volatile atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + v->counter += i; + local_irq_restore(flags); +} + +static inline void atomic_sub(int i, volatile atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + v->counter -= i; + local_irq_restore(flags); +} + +static inline void atomic_inc(volatile atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + v->counter += 1; + local_irq_restore(flags); +} + +static inline void atomic_dec(volatile atomic_t *v) +{ + unsigned long flags; + + local_irq_save(flags); + v->counter -= 1; + local_irq_restore(flags); +} + +static inline int atomic_dec_and_test(volatile atomic_t *v) +{ + unsigned long flags; + int val; + + local_irq_save(flags); + val = v->counter; + v->counter = val -= 1; + local_irq_restore(flags); + + return val == 0; +} + +static inline int atomic_add_negative(int i, volatile atomic_t *v) +{ + unsigned long flags; + int val; + + local_irq_save(flags); + val = v->counter; + v->counter = val += i; + local_irq_restore(flags); + + return val < 0; +} + +static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr) +{ + unsigned long flags; + + local_irq_save(flags); + *addr &= ~mask; + local_irq_restore(flags); +} + +/* Atomic operations are already serializing on ARM */ +#define smp_mb__before_atomic_dec() barrier() +#define smp_mb__after_atomic_dec() barrier() +#define smp_mb__before_atomic_inc() barrier() +#define smp_mb__after_atomic_inc() barrier() + +#endif +#endif +#endif // 0 diff --git a/arch/nds32/include/asm/bitops.h b/arch/nds32/include/asm/bitops.h new file mode 100644 index 0000000..a31532c --- /dev/null +++ b/arch/nds32/include/asm/bitops.h @@ -0,0 +1,148 @@ +/* + * Copyright 1995, Russell King. + * Various bits and pieces copyrights include: + * Linus Torvalds (test_bit). + * + * Copyright (C) 2006 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__ + +#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) +{ + ((unsigned char *) addr)[nr >> 3] |= (1U << (nr & 7)); +} + +extern void clear_bit(int nr, volatile void * addr); + +static inline void __clear_bit(int nr, volatile void *addr) +{ + ((unsigned char *) addr)[nr >> 3] &= ~(1U << (nr & 7)); +} + +extern void change_bit(int nr, volatile void * addr); + +static inline void __change_bit(int nr, volatile void *addr) +{ + ((unsigned char *) addr)[nr >> 3] ^= (1U << (nr & 7)); +} + +extern int test_and_set_bit(int nr, volatile void * addr); + +static inline int __test_and_set_bit(int nr, volatile void *addr) +{ + unsigned int mask = 1 << (nr & 7); + unsigned int oldval; + + oldval = ((unsigned char *) addr)[nr >> 3]; + ((unsigned char *) addr)[nr >> 3] = oldval | mask; + return oldval & mask; +} + +extern int test_and_clear_bit(int nr, volatile void * addr); + +static inline int __test_and_clear_bit(int nr, volatile void *addr) +{ + unsigned int mask = 1 << (nr & 7); + unsigned int oldval; + + oldval = ((unsigned char *) addr)[nr >> 3]; + ((unsigned char *) addr)[nr >> 3] = oldval & ~mask; + return oldval & mask; +} + +extern int test_and_change_bit(int nr, volatile void * addr); + +static inline int __test_and_change_bit(int nr, volatile void *addr) +{ + unsigned int mask = 1 << (nr & 7); + unsigned int oldval; + + oldval = ((unsigned char *) addr)[nr >> 3]; + ((unsigned char *) addr)[nr >> 3] = oldval ^ mask; + return oldval & mask; +} + +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..d41c5fa --- /dev/null +++ b/arch/nds32/include/asm/byteorder.h @@ -0,0 +1,36 @@ +/* + * linux/include/asm-arm/byteorder.h + * + * Copyright (C) 2006 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/config.h b/arch/nds32/include/asm/config.h new file mode 100644 index 0000000..0826f29 --- /dev/null +++ b/arch/nds32/include/asm/config.h @@ -0,0 +1,24 @@ +/* + * Copyright (C) 2006 Andes Technology Corporation + * + * 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..f87f36d --- /dev/null +++ b/arch/nds32/include/asm/global_data.h @@ -0,0 +1,84 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * Copyright (C) 2006 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 +#if 0 + unsigned long cpu_clk; /* CPU clock in Hz! */ + unsigned long bus_clk; + unsigned long ram_size; /* RAM size */ + unsigned long reset_status; /* reset status register at boot */ +#endif + void **jt; /* jump table */ +} 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 */ + +#if 0 +//extern gd_t *global_data; +//#define DECLARE_GLOBAL_DATA_PTR gd_t *gd = global_data +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..8a78263 --- /dev/null +++ b/arch/nds32/include/asm/io.h @@ -0,0 +1,352 @@ +/* + * linux/include/asm-nds/io.h + * + * Copyright (C) 1996-2000 Russell King + * + * Copyright (C) 2006 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... include asm/io.h + **************************************************************/ + +#ifdef __KERNEL__ + +#include <linux/types.h> +#include <asm/byteorder.h> +#include <asm/memory.h> +#if 0 /* XXX###XXX */ +#include <asm/arch/hardware.h> +#endif /* XXX###XXX */ + +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 + */ +#if 0 /* XXX###XXX */ +#include <asm/arch/io.h> +#endif /* XXX###XXX */ + +/* + * IO port access primitives + * ------------------------- + * + * The ARM doesn't have special IO access instructions; 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) __raw_writesb(__io(p),d,l) +#define outsw(p,d,l) __raw_writesw(__io(p),d,l) +#define outsl(p,d,l) __raw_writesl(__io(p),d,l) + +#define insb(p,d,l) __raw_readsb(__io(p),d,l) +#define insw(p,d,l) __raw_readsw(__io(p),d,l) +#define insl(p,d,l) __raw_readsl(__io(p),d,l) +#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/memory.h b/arch/nds32/include/asm/memory.h new file mode 100644 index 0000000..141721c --- /dev/null +++ b/arch/nds32/include/asm/memory.h @@ -0,0 +1,141 @@ +/* + * linux/include/asm-arm/memory.h + * + * Copyright (C) 2000-2002 Russell King + * + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2010 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 + +#if 0 /* XXX###XXX */ + +#include <linux/config.h> +#include <asm/arch/memory.h> + +/* + * PFNs are used to describe any physical page; this means + * PFN 0 == physical address 0. + * + * This is the PFN of the first RAM page in the kernel + * direct-mapped view. We assume this is the first page + * of RAM in the mem_map as well. + */ +#define PHYS_PFN_OFFSET (PHYS_OFFSET >> PAGE_SHIFT) + +/* + * These are *only* valid on the kernel direct mapped RAM memory. + */ +static inline unsigned long virt_to_phys(void *x) +{ + return __virt_to_phys((unsigned long)(x)); +} + +static inline void *phys_to_virt(unsigned long x) +{ + return (void *)(__phys_to_virt((unsigned long)(x))); +} + +#define __pa(x) __virt_to_phys((unsigned long)(x)) +#define __va(x) ((void *)__phys_to_virt((unsigned long)(x))) + +/* + * Virtual <-> DMA view memory address translations + * Again, these are *only* valid on the kernel direct mapped RAM + * memory. Use of these is *depreciated*. + */ +#define virt_to_bus(x) (__virt_to_bus((unsigned long)(x))) +#define bus_to_virt(x) ((void *)(__bus_to_virt((unsigned long)(x)))) + +/* + * Conversion between a struct page and a physical address. + * + * Note: when converting an unknown physical address to a + * struct page, the resulting pointer must be validated + * using VALID_PAGE(). It must return an invalid struct page + * for any physical address not corresponding to a system + * RAM address. + * + * page_to_pfn(page) convert a struct page * to a PFN number + * pfn_to_page(pfn) convert a _valid_ PFN number to struct page * + * pfn_valid(pfn) indicates whether a PFN number is valid + * + * virt_to_page(k) convert a _valid_ virtual address to struct page * + * virt_addr_valid(k) indicates whether a virtual address is valid + */ +#ifndef CONFIG_DISCONTIGMEM + +#define page_to_pfn(page) (((page) - mem_map) + PHYS_PFN_OFFSET) +#define pfn_to_page(pfn) ((mem_map + (pfn)) - PHYS_PFN_OFFSET) +#define pfn_valid(pfn) ((pfn) >= PHYS_PFN_OFFSET && (pfn) < (PHYS_PFN_OFFSET + max_mapnr)) + +#define virt_to_page(kaddr) (pfn_to_page(__pa(kaddr) >> PAGE_SHIFT)) +#define virt_addr_valid(kaddr) ((kaddr) >= PAGE_OFFSET && (kaddr) < (unsigned long)high_memory) + +#define PHYS_TO_NID(addr) (0) + +#define VALID_PAGE(page) ((page - mem_map) < max_mapnr) + +#else + +/* + * This is more complex. We have a set of mem_map arrays spread + * around in memory. + */ +#define page_to_pfn(page) \ + (((page) - page_zone(page)->zone_mem_map) \ + + (page_zone(page)->zone_start_paddr >> PAGE_SHIFT)) + +#define pfn_to_page(pfn) \ + (PFN_TO_MAPBASE(pfn) + LOCAL_MAP_NR((pfn) << PAGE_SHIFT)) + +#define pfn_valid(pfn) \ + ({ \ + unsigned int node = PFN_TO_NID(pfn); \ + struct pglist_data *nd = NODE_DATA(node); \ + ((node < NR_NODES) && \ + ((pfn - (nd->node_start_paddr >> PAGE_SHIFT)) < nd->node_size));\ + }) + +#define virt_to_page(kaddr) \ + (ADDR_TO_MAPBASE(kaddr) + LOCAL_MAP_NR(kaddr)) + +#define virt_addr_valid(kaddr) (KVADDR_TO_NID(kaddr) < NR_NODES) + +/* + * Common discontigmem stuff. + * PHYS_TO_NID is used by the ARM kernel/setup.c + */ +#define PHYS_TO_NID(addr) PFN_TO_NID((addr) >> PAGE_SHIFT) + +/* + * 2.4 compatibility + * + * VALID_PAGE returns a non-zero value if given page pointer is valid. + * This assumes all node's mem_maps are stored within the node they + * refer to. This is actually inherently buggy. + */ +#define VALID_PAGE(page) \ +({ unsigned int node = KVADDR_TO_NID(page); \ + ((node < NR_NODES) && \ + ((unsigned)((page) - NODE_MEM_MAP(node)) < NODE_DATA(node)->node_size)); \ +}) + +#endif + +/* + * We should really eliminate virt_to_bus() here - it's depreciated. + */ +#define page_to_bus(page) (virt_to_bus(page_address(page))) + +#endif /* XXX###XXX */ + +#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..285538b --- /dev/null +++ b/arch/nds32/include/asm/posix_types.h @@ -0,0 +1,85 @@ +/* + * linux/include/asm-arm/posix_types.h + * + * Copyright (C) 1996-1998 Russell King. + * + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2010 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..f5b7470 --- /dev/null +++ b/arch/nds32/include/asm/processor.h @@ -0,0 +1,145 @@ +/* + * linux/include/asm-arm/processor.h + * + * Copyright (C) 1995-2002 Russell King + * + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2010 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. + **************************************************************/ +#if 0 +/* + * Default implementation of macro that returns current + * instruction pointer ("program counter"). + */ +#define current_text_addr() ({ __label__ _l; _l: &&_l;}) + +#define FP_SIZE 35 + +struct fp_hard_struct { + unsigned int save[FP_SIZE]; /* as yet undefined */ +}; + +struct fp_soft_struct { + unsigned int save[FP_SIZE]; /* undefined information */ +}; + +union fp_state { + struct fp_hard_struct hard; + struct fp_soft_struct soft; +}; + +typedef unsigned long mm_segment_t; /* domain register */ + +#ifdef __KERNEL__ + +#define EISA_bus 0 +#define MCA_bus 0 +#define MCA_bus__is_a_macro + +#include <asm/atomic.h> +#include <asm/ptrace.h> +#if 0 /* XXX###XXX */ +#include <asm/arch/memory.h> +#endif /* XXX###XXX */ +#include <asm/proc/processor.h> +#include <asm/types.h> + +union debug_insn { + u32 arm; + u16 thumb; +}; + +struct debug_entry { + u32 address; + union debug_insn insn; +}; + +struct debug_info { + int nsaved; + struct debug_entry bp[2]; +}; + +struct thread_struct { + atomic_t refcount; + /* fault info */ + unsigned long address; + unsigned long trap_no; + unsigned long error_code; + /* floating point */ + union fp_state fpstate; + /* debugging */ + struct debug_info debug; + /* context info */ + struct context_save_struct *save; + EXTRA_THREAD_STRUCT +}; + +#define INIT_THREAD { \ + refcount: ATOMIC_INIT(1), \ + EXTRA_THREAD_STRUCT_INIT \ +} + +/* + * Return saved PC of a blocked thread. + */ +static inline unsigned long thread_saved_pc(struct thread_struct *t) +{ + return t->save ? pc_pointer(t->save->pc) : 0; +} + +static inline unsigned long thread_saved_fp(struct thread_struct *t) +{ + return t->save ? t->save->fp : 0; +} + +/* Forward declaration, a strange C thing */ +struct task_struct; + +/* Free all resources held by a thread. */ +extern void release_thread(struct task_struct *); + +/* Copy and release all segment info associated with a VM */ +#define copy_segments(tsk, mm) do { } while (0) +#define release_segments(mm) do { } while (0) + +unsigned long get_wchan(struct task_struct *p); + +#define THREAD_SIZE (8192) + +extern struct task_struct *alloc_task_struct(void); +extern void __free_task_struct(struct task_struct *); +#define get_task_struct(p) atomic_inc(&(p)->thread.refcount) +#define free_task_struct(p) \ + do { \ + if (atomic_dec_and_test(&(p)->thread.refcount)) \ + __free_task_struct((p)); \ + } while (0) + +#define init_task (init_task_union.task) +#define init_stack (init_task_union.stack) + +#define cpu_relax() barrier() + +/* + * Create a new kernel thread + */ +extern int arch_kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); + +#endif + +#endif /* __ASM_ARM_PROCESSOR_H */ +#endif diff --git a/arch/nds32/include/asm/ptrace.h b/arch/nds32/include/asm/ptrace.h new file mode 100644 index 0000000..098b843 --- /dev/null +++ b/arch/nds32/include/asm/ptrace.h @@ -0,0 +1,51 @@ +/* + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2010 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. + */ + +/************************************************************** + * CAUTION: + * - do not implement for NDS32 Arch yet. + * - included in common.h + **************************************************************/ + +#if 0 +#ifndef __ASM_NDS_PTRACE_H +#define __ASM_NDS_PTRACE_H + +#define PTRACE_GETREGS 12 +#define PTRACE_SETREGS 13 +#define PTRACE_GETFPREGS 14 +#define PTRACE_SETFPREGS 15 + +#define PTRACE_SETOPTIONS 21 + +/* options set using PTRACE_SETOPTIONS */ +#define PTRACE_O_TRACESYSGOOD 0x00000001 + +#include <asm/proc/ptrace.h> + +#ifndef __ASSEMBLY__ +#define pc_pointer(v) \ + ((v) & ~PCMASK) + +#define instruction_pointer(regs) \ + (pc_pointer((regs)->ARM_pc)) + +#ifdef __KERNEL__ +extern void show_regs(struct pt_regs *); + +#define predicate(x) (x & 0xf0000000) +#define PREDICATE_ALWAYS 0xe0000000 + +#endif + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_NDS_PTRACE_H */ +#endif diff --git a/arch/nds32/include/asm/ptregs.h b/arch/nds32/include/asm/ptregs.h new file mode 100644 index 0000000..5cb5521 --- /dev/null +++ b/arch/nds32/include/asm/ptregs.h @@ -0,0 +1,83 @@ +/* + * linux/include/asm-arm/proc-armv/ptrace.h + * + * Copyright (C) 1996-1999 Russell King + * + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2010 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 __PTREGS_H +#define __PTREGS_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. */ + +struct pt_regs { + long uregs[39]; +}; + +#define PTREGS(reg) [reg] +#define R0 uregs[1] // R0 +#define R1 uregs[2] +#define R2 uregs[3] +#define R3 uregs[4] +#define R4 uregs[5] +#define R5 uregs[6] +#define R6 uregs[7] +#define R7 uregs[8] +#define R8 uregs[9] +#define R9 uregs[10] +#define R10 uregs[11] +#define R11 uregs[12] +#define R12 uregs[13] +#define R13 uregs[14] +#define R14 uregs[15] +#define R15 uregs[16] +#define R16 uregs[17] +#define R17 uregs[18] +#define R18 uregs[19] +#define R19 uregs[20] +#define R20 uregs[21] +#define R21 uregs[22] +#define R22 uregs[23] +#define R23 uregs[24] +#define R24 uregs[25] +#define R25 uregs[26] +#define R26 uregs[27] +#define R27 uregs[28] +#define FP uregs[29] //R28 +#define GP uregs[30] //R29 +#define RA uregs[31] //R30 +#define SP uregs[32] //R31 +#define D0HI uregs[33] +#define D0LO uregs[34] +#define D1HI uregs[35] +#define D1LO uregs[36] +#define PSW uregs[37] //IR0 +#define PC uregs[38] //PC + + +#define processor_mode(regs) \ + (((regs)->PSW & MODE_MASK)>>3) + +#define interrupts_enabled(regs) \ + ((regs)->PSW & GIE_BIT) + +#endif /* __ASSEMBLY__ */ + +#endif + diff --git a/arch/nds32/include/asm/setup.h b/arch/nds32/include/asm/setup.h new file mode 100644 index 0000000..f8b044b --- /dev/null +++ b/arch/nds32/include/asm/setup.h @@ -0,0 +1,274 @@ +/* + * linux/include/asm/setup.h + * + * Copyright (C) 1997-1999 Russell King + * + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2010 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. + * + * Structure passed to kernel to tell it about the + * hardware it's running on. See linux/Documentation/arm/Setup + * for more info. + * + * NOTE: + * This file contains two ways to pass information from the boot + * loader to the kernel. The old struct param_struct is deprecated, + * but it will be kept in the kernel for 5 years from now + * (2001). This will allow boot loaders to convert to the new struct + * tag way. + */ + +#ifndef __ASM_NDS_SETUP_H +#define __ASM_NDS_SETUP_H + +/* + * Usage: + * - do not go blindly adding fields, add them at the end + * - when adding fields, don't rely on the address until + * a patch from me has been released + * - unused fields should be zero (for future expansion) + * - this structure is relatively short-lived - only + * guaranteed to contain useful data in setup_arch() + */ +#define COMMAND_LINE_SIZE 1024 + +/* This is the old deprecated way to pass parameters to the kernel */ +struct param_struct { + union { + struct { + unsigned long page_size; /* 0 */ + unsigned long nr_pages; /* 4 */ + unsigned long ramdisk_size; /* 8 */ + unsigned long flags; /* 12 */ +#define FLAG_READONLY 1 +#define FLAG_RDLOAD 4 +#define FLAG_RDPROMPT 8 + unsigned long rootdev; /* 16 */ + unsigned long video_num_cols; /* 20 */ + unsigned long video_num_rows; /* 24 */ + unsigned long video_x; /* 28 */ + unsigned long video_y; /* 32 */ + unsigned long memc_control_reg; /* 36 */ + unsigned char sounddefault; /* 40 */ + unsigned char adfsdrives; /* 41 */ + unsigned char bytes_per_char_h; /* 42 */ + unsigned char bytes_per_char_v; /* 43 */ + unsigned long pages_in_bank[4]; /* 44 */ + unsigned long pages_in_vram; /* 60 */ + unsigned long initrd_start; /* 64 */ + unsigned long initrd_size; /* 68 */ + unsigned long rd_start; /* 72 */ + unsigned long system_rev; /* 76 */ + unsigned long system_serial_low; /* 80 */ + unsigned long system_serial_high; /* 84 */ + unsigned long mem_fclk_21285; /* 88 */ + } s; + char unused[256]; + } u1; + union { + char paths[8][128]; + struct { + unsigned long magic; + char n[1024 - sizeof(unsigned long)]; + } s; + } u2; + char commandline[COMMAND_LINE_SIZE]; +}; + + + +/* + * The new way of passing information: a list of tagged entries + */ + +/* The list ends with an ATAG_NONE node. */ +#define ATAG_NONE 0x00000000 + +struct tag_header { + u32 size; + u32 tag; +}; + +/* The list must start with an ATAG_CORE node */ +#define ATAG_CORE 0x54410001 + +struct tag_core { + u32 flags; /* bit 0 = read-only */ + u32 pagesize; + u32 rootdev; +}; + +/* it is allowed to have multiple ATAG_MEM nodes */ +#define ATAG_MEM 0x54410002 + +struct tag_mem32 { + u32 size; + u32 start; /* physical start address */ +}; + +/* VGA text type displays */ +#define ATAG_VIDEOTEXT 0x54410003 + +struct tag_videotext { + u8 x; + u8 y; + u16 video_page; + u8 video_mode; + u8 video_cols; + u16 video_ega_bx; + u8 video_lines; + u8 video_isvga; + u16 video_points; +}; + +/* describes how the ramdisk will be used in kernel */ +#define ATAG_RDIMG 0x54410004 + +struct tag_mem_range { + u32 addr; + u32 size; + struct tag_mem_range * next; +}; + +struct tag_ramdisk { + u32 flags; /* bit 0 = load, bit 1 = prompt */ + u32 size; /* decompressed ramdisk size in _kilo_ bytes */ + u32 start; /* starting block of floppy-based RAM disk image */ +}; + +/* describes where the compressed ramdisk image lives */ +#define ATAG_INITRD 0x54410005 + +struct tag_initrd { + u32 start; /* physical start address */ + u32 size; /* size of compressed ramdisk image in bytes */ +}; + +/* board serial number. "64 bits should be enough for everybody" */ +#define ATAG_SERIAL 0x54410006 + +struct tag_serialnr { + u32 low; + u32 high; +}; + +/* board revision */ +#define ATAG_REVISION 0x54410007 + +struct tag_revision { + u32 rev; +}; + +/* initial values for vesafb-type framebuffers. see struct screen_info + * in include/linux/tty.h + */ +#define ATAG_VIDEOLFB 0x54410008 + +struct tag_videolfb { + u16 lfb_width; + u16 lfb_height; + u16 lfb_depth; + u16 lfb_linelength; + u32 lfb_base; + u32 lfb_size; + u8 red_size; + u8 red_pos; + u8 green_size; + u8 green_pos; + u8 blue_size; + u8 blue_pos; + u8 rsvd_size; + u8 rsvd_pos; +}; + +/* command line: \0 terminated string */ +#define ATAG_CMDLINE 0x54410009 + +struct tag_cmdline { + char cmdline[1]; /* this is the minimum size */ +}; + +/* acorn RiscPC specific information */ +#define ATAG_ACORN 0x41000101 + +struct tag_acorn { + u32 memc_control_reg; + u32 vram_pages; + u8 sounddefault; + u8 adfsdrives; +}; + +/* footbridge memory clock, see arch/arm/mach-footbridge/arch.c */ +#define ATAG_MEMCLK 0x41000402 + +struct tag_memclk { + u32 fmemclk; +}; + +struct tag { + struct tag_header hdr; + union { + struct tag_core core; + struct tag_mem32 mem; + struct tag_videotext videotext; + struct tag_ramdisk ramdisk; + struct tag_initrd initrd; + struct tag_serialnr serialnr; + struct tag_revision revision; + struct tag_videolfb videolfb; + struct tag_cmdline cmdline; + struct tag_mem_range mem_range; + /* + * Acorn specific + */ + struct tag_acorn acorn; + + /* + * DC21285 specific + */ + struct tag_memclk memclk; + } u; +}; + +struct tagtable { + u32 tag; + int (*parse)(const struct tag *); +}; + +#define __tag __attribute__((unused, __section__(".taglist"))) +#define __tagtable(tag, fn) \ +static struct tagtable __tagtable_##fn __tag = { tag, fn } + +#define tag_member_present(tag,member) \ + ((unsigned long)(&((struct tag *)0L)->member + 1) \ + <= (tag)->hdr.size * 4) + +#define tag_next(t) ((struct tag *)((u32 *)(t) + (t)->hdr.size)) +#define tag_size(type) ((sizeof(struct tag_header) + sizeof(struct type)) >> 2) + +#define for_each_tag(t,base) \ + for (t = base; t->hdr.size; t = tag_next(t)) + +/* + * Memory map description + */ +#define NR_BANKS 8 + +struct meminfo { + int nr_banks; + unsigned long end; + struct { + unsigned long start; + unsigned long size; + int node; + } bank[NR_BANKS]; +}; + +extern struct meminfo meminfo; + +#endif diff --git a/arch/nds32/include/asm/string.h b/arch/nds32/include/asm/string.h new file mode 100644 index 0000000..5a8a7ed --- /dev/null +++ b/arch/nds32/include/asm/string.h @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2010 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); + +#if 0 +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/types.h b/arch/nds32/include/asm/types.h new file mode 100644 index 0000000..b3d7c61 --- /dev/null +++ b/arch/nds32/include/asm/types.h @@ -0,0 +1,84 @@ +/* + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2010 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 + +/*typedef unsigned long ulong;*/ /* in /linux/types.h */ +/*typedef unsigned short ushort;*//* in /linux/types.h */ +/*typedef unsigned char uchar;*/ /* in common.h */ + +/* in /linux/types.h */ +/* +typedef unsigned int uint32_t; +typedef unsigned short uint16_t; +typedef unsigned char uint8_t; +*/ + +/* + * 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 + +/*typedef unsigned int uint; */ /* in /linux/types.h */ + +typedef volatile unsigned char vuchar; +typedef volatile unsigned long vulong; +typedef volatile unsigned short vushort; + +/* both of the following 2 types are defined in Posix_types.h [Hill_20090306]*/ +/*typedef long time_t;*/ +/*typedef long suseconds_t;*/ + +#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.h b/arch/nds32/include/asm/u-boot.h new file mode 100644 index 0000000..c5deda8 --- /dev/null +++ b/arch/nds32/include/asm/u-boot.h @@ -0,0 +1,72 @@ +/* + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Alex Zuepke azu@sysgo.de + * + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2006 Shawn Lin (nobuhiro@andestech.com) + * Copyright (C) 2010 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]; + + struct bd_info_ext bi_ext; /* board specific extension */ +} bd_t; + +#define bi_env_data bi_env->data +#define bi_env_crc bi_env->crc + +#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..3524d06 --- /dev/null +++ b/arch/nds32/include/asm/unaligned.h @@ -0,0 +1,35 @@ +/* + * Copyright (C) 2006 Andes Technology Corporation + * Copyright (C) 2010 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 + */ +//#if defined(__NDSEL__) +#ifndef __NDSEB__ +#define get_unaligned __get_unaligned_le +#define put_unaligned __put_unaligned_le +//#elif defined(__NDSEB__) +#else +#define get_unaligned __get_unaligned_be +#define put_unaligned __put_unaligned_be +//#else +//#error invalid endian +#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 */