Add nds32 architecture with generic lib C files support.
Signed-off-by: Macpaul Lin macpaul@andestech.com --- arch/nds32/lib/Makefile | 53 ++++++++ arch/nds32/lib/board.c | 341 +++++++++++++++++++++++++++++++++++++++++++++++ arch/nds32/lib/bootm.c | 209 +++++++++++++++++++++++++++++ 3 files changed, 603 insertions(+), 0 deletions(-) create mode 100644 arch/nds32/lib/Makefile create mode 100644 arch/nds32/lib/board.c create mode 100644 arch/nds32/lib/bootm.c
diff --git a/arch/nds32/lib/Makefile b/arch/nds32/lib/Makefile new file mode 100644 index 0000000..0fe0351 --- /dev/null +++ b/arch/nds32/lib/Makefile @@ -0,0 +1,53 @@ +# +# (C) Copyright 2000-2006 +# 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 +# +# +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(ARCH).a + +OBJS := board.o bootm.o +SOBJS := + +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..d70d8ab --- /dev/null +++ b/arch/nds32/lib/board.c @@ -0,0 +1,341 @@ +/* + * (C) Copyright 2002 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * (C) Copyright 2002 + * Sysgo Real-Time Solutions, GmbH <www.elinos.com> + * Marius Groeger mgroeger@sysgo.de + * + * Copyright 2006 (C) 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 <version.h> +#include <asm/global_data.h> +#include <asm/andesboot.h> +//#include <andes.h> + +//volatile bd_t sg_bd; +//volatile gd_t g_gd; +DECLARE_GLOBAL_DATA_PTR; + +#ifndef CONFIG_IDENT_STRING +#define CONFIG_IDENT_STRING "" +#endif + +const char version_string[] = + U_BOOT_VERSION" (" __DATE__ " - " __TIME__ ")"CONFIG_IDENT_STRING; + +#ifdef CONFIG_DRIVER_CS8900 +extern void cs8900_get_enetaddr(uchar *addr); +#endif + +#ifdef CONFIG_EPXA1DB_MAC_ADDR +extern void epxa1db_set_mac_addr(bd_t* bd); +#endif + +/* + * Breath some life into the board... + * + * Initialize an SMC for serial comms, 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. + */ + +void LED_Show(ulong u32Val) +{ + volatile ulong u32i; + LED_ShowHex(u32Val); + for(u32i=0; u32i<0x100000; u32i++); // delay +} + +inline void wait_ms(unsigned long ms); + +struct NS16550 { + unsigned char rbr; /* 0 */ + int pad1:24; + unsigned char ier; /* 1 */ + int pad2:24; + unsigned char fcr; /* 2 */ + int pad3:24; + unsigned char lcr; /* 3 */ + int pad4:24; + unsigned char mcr; /* 4 */ + int pad5:24; + unsigned char lsr; /* 5 */ + int pad6:24; + unsigned char msr; /* 6 */ + int pad7:24; + unsigned char scr; /* 7 */ + int pad8:24; +#if defined(CONFIG_OMAP) + unsigned char mdr1; /* mode select reset TL16C750*/ +#endif +#ifdef CONFIG_OMAP1510 + int pad9:24; + unsigned long pad[10]; + unsigned char osc_12m_sel; + int pad10:24; +#endif +} __attribute__ ((packed)); + + +void test_func(void) +{ + struct NS16550 *pND16500 = (struct NS16550*)0x98a00000; + memset(pND16500, 0, sizeof(struct NS16550)); + + printf("st size: %X \r\n", sizeof(struct NS16550)); + + printf("ier addr: %X val: %X \r\n",&pND16500->ier, pND16500->ier); + pND16500->ier = 0xAA; + printf("ier addr: %X val: %X \r\n",&pND16500->ier, pND16500->ier); + pND16500->ier = 0x55AA; + printf("ier addr: %X val: %X \r\n",&pND16500->ier, pND16500->ier); + + printf("lsr addr: %X val: %X \r\n",&pND16500->lsr, pND16500->lsr); + pND16500->lsr = 0xAA; + printf("lsr addr: %X val: %X \r\n",&pND16500->lsr, pND16500->lsr); + pND16500->lsr = 0x55AA; + printf("lsr addr: %X val: %X \r\n",&pND16500->lsr, pND16500->lsr); + printf("pad6 no addr val: %X \r\n", pND16500->pad6); +} + +/* + * 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); + +int print_cpuinfo (void); + +init_fnc_t *init_sequence[] = { +#if defined(CONFIG_ARCH_CPU_INIT) + arch_cpu_init, /* basic arch cpu dependent setup */ +#endif +// board_init, /* basic board dependent setup */ +#if defined(CONFIG_USE_IRQ) + interrupt_init, /* set up exceptions */ +#endif +// timer_init, /* initialize timer */ +#ifdef CONFIG_FSL_ESDHC + get_clocks, +#endif + env_init, /* initialize environment */ +// init_baudrate, /* initialze baudrate settings */ + serial_init, /* serial communications setup */ + console_init_f, /* stage 1 init of console */ +// display_banner, /* say that we are here */ +#if defined(CONFIG_DISPLAY_CPUINFO) + print_cpuinfo, /* display cpu info (and speed) */ +#endif +#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) +// pci_init, +//#endif + display_dram_config, + NULL, +}; + +void start_andesboot(void) +{ + init_fnc_t **init_fnc_ptr; + char *s; + + ulong size; + + /* Pointer is writable since we allocated a register for it */ + gd = (gd_t*)(_andesboot_start - CONFIG_MALLOC_SIZE - 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 (); + } + } + +#if 0 + /* set up bd strucuture */ + + /* basic cpu dependent setup */ + cpu_init(); /* reserve stack size in DRAM, prepare for heap setup*/ +#endif + /* basic board dependent setup */ + board_init(gd->bd); /* set arch-number & boot-params*/ +#if 0 + /* initialize environment */ +// env_init(); /* now refer to the env_flash.c */ + + /* serial communications setup */ + serial_init(); +#endif + display_banner(gd->bd); + +test_func(); + + /* get the devices list going. */ + stdio_init (); + + /* set up execptions */ + interrupt_init(); +#if 0 + /* configure available RAM banks */ + dram_init(gd->bd); +#endif + display_dram_config(gd->bd); + /* configure available FLASH banks */ + +#ifndef CONFIG_SYS_NO_FLASH + /* configure available FLASH banks */ + display_flash_config (flash_init ()); +#endif /* CONFIG_SYS_NO_FLASH */ + +//#endif + + /* andesboot_end is defined in the board-specific linker script */ + mem_malloc_init(_andesboot_start - CONFIG_MALLOC_SIZE, CONFIG_MALLOC_SIZE); + + /* initialize environment */ + env_relocate(); + + /* IP Address */ + gd->bd->bi_ip_addr = getenv_IPaddr ("ipaddr"); + /* MAC Address */ + { + int i; + ulong reg; + char *s, *e; + char tmp[64]; + + i = getenv_r ("ethaddr", tmp, sizeof (tmp)); + s = (i > 0) ? tmp : NULL; + + for (reg = 0; reg < 6; ++reg) { + gd->bd->bi_enetaddr[reg] = s ? simple_strtoul (s, &e, 16) : 0; + if (s) + s = (*e) ? e + 1 : e; + } + } + +#if defined(CONFIG_PCI) + pci_init(); /* Do pci configuration */ +#endif + + /* enable exceptions */ + enable_interrupts(); + +/* + * FIXME: this should probably be rationalised into a standard call for + * each board, e.g. enet_mac_init() - but this'll do for now. + */ +#ifdef BOARD_POST_INIT // no defined + board_post_init(gd->bd); +#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 (;;); +} + + +void pretty_print_size(ulong size) +{ + if (size > 0x100000) + printf("%ld MB", size / 0x100000); + else + printf("%ld KB", size / 0x400); +} + +void display_banner(bd_t *bd) +{ + printf ("\n\n%s\n\n", version_string); + printf ("ANDES maintain version %d.%d. Clock:%uMHz\n",VERSION_MAJOR_NUM,VERSION_MINOR_NUM,VERSION_CLOCK/1000000); + printf("ANDESboot code: %08lx -> %08lx\n", _andesboot_start, _andesboot_end); + +#ifdef CONFIG_USE_IRQ + printf("IRQ Stack: %08lx\n", IRQ_STACK_START); + printf("FIQ Stack: %08lx\n", FIQ_STACK_START); +#endif +} + +void display_dram_config(bd_t *bd) +{ + int i; + + printf("DRAM Configuration:\n"); + + for(i=0; i<CONFIG_NR_DRAM_BANKS; i++) + { + printf("Bank #%d: %08lx ", i, bd->bi_dram[i].start); + pretty_print_size(bd->bi_dram[i].size); + printf("\n"); + } +} + +#ifndef CONFIG_SYS_NO_FLASH +void display_flash_config (ulong size) +{ + puts ("Flash: "); + print_size (size, "\n"); +} +#endif /* CONFIG_SYS_NO_FLASH */ + diff --git a/arch/nds32/lib/bootm.c b/arch/nds32/lib/bootm.c new file mode 100644 index 0000000..c0bbab1 --- /dev/null +++ b/arch/nds32/lib/bootm.c @@ -0,0 +1,209 @@ +/* + * (C) Copyright 2003, Psyent Corporation <www.psyent.com> + * Scott McNutt smcnutt@psyent.com + * + * Copyright 2006 (C) 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/setup.h> +#include <asm/andesboot.h> +#include <command.h> +#include <asm/byteorder.h> +#include <asm/global_data.h> + +DECLARE_GLOBAL_DATA_PTR; +extern image_header_t header; /* common/cmd_bootm.c */ +#undef DEBUG +static struct tag *params; + +static void setup_start_tag(void) +{ + params = (struct tag *)gd->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); +} + + +static void setup_memory_tags(void) +{ + 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 = gd->bd->bi_dram[i].start; + params->u.mem.size = gd->bd->bi_dram[i].size; +#ifdef not_complete_yet + printf("params->u.mem.start = %x\n", params->u.mem.start); + printf("params->u.mem.size = %x\n", params->u.mem.size); +#endif /* end_of_not */ + params = tag_next(params); + } +} + +static void setup_commandline_tag(char *commandline) +{ + char *p; + + if (commandline == NULL) + { + 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); +} + + +static void setup_clock_tags(void) +{ +#if 0 + params->hdr.tag = ATAG_CLOCK; + params->hdr.size = tag_size(tag_clock); + params->u.clock.clock_id = ACLOCK_BOOTCPU; + params->u.clock.clock_flags = 0; + params->u.clock.clock_hz = gd->cpu_hz; + params = tag_next(params); +#endif +} + + +static void setup_ethernet_tag(char *addr, int index) +{ +#if 0 + char *s, *e; + int i; + + params->hdr.tag = ATAG_ETHERNET; + params->hdr.size = tag_size(tag_ethernet); + + params->u.ethernet.mac_index = index; + params->u.ethernet.mii_phy_addr = gd->bd->bi_phy_id[index]; + + s = addr; + for (i = 0; i < 6; i++) { + params->u.ethernet.hw_address[i] = simple_strtoul(s, &e, 16); + s = e + 1; + } + + params = tag_next(params); +#endif +} + +static void setup_ethernet_tags(void) +{ +#if 0 + char name[16] = "ethaddr"; + char *addr; + int i = 0; + + do { + addr = getenv(name); + if (addr) + params = setup_ethernet_tag(params, addr, i); + sprintf(name, "eth%daddr", ++i); + } while (i < 4); + + params = tag_next(params); +#endif +} + +static void setup_end_tag(void) +{ + params->hdr.tag = ATAG_NONE; + params->hdr.size = 0; +} + + +void show_boot_progress(int progress) +{ + //printf("booting, please wait... \r\n"); +} + +static void setup_ramdisk_tag(unsigned long rd_start, unsigned long rd_end) +{ + if (rd_start == rd_end) + return params; + + params->hdr.tag = ATAG_RDIMG; + params->hdr.size = tag_size(tag_mem_range); + + params->u.mem_range.addr = rd_start; + params->u.mem_range.size = rd_end - rd_start; + + params = tag_next(params); +} + + +int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) +{ + void (*theKernel)(int magic, void *tagtable); + char *commandline = getenv("bootargs"); + + if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) + return 1; + + theKernel = (void *)images->ep; + show_boot_progress (1); + + setup_start_tag(); + setup_memory_tags(); + if (images->rd_start) { + setup_ramdisk_tag(images->rd_start, images->rd_end); + } + setup_commandline_tag(commandline); + setup_end_tag(); + + printf("\nStarting kernel at %p (params at %p)...\n\n", + theKernel, params); + + cleanup_before_linux(); + theKernel(0, params); + /* does not return */ + + return 1; + +}