diff options
author | Tom Rini <trini@ti.com> | 2013-08-13 12:58:47 (GMT) |
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committer | Tom Rini <trini@ti.com> | 2013-08-13 12:58:47 (GMT) |
commit | 67cafc0861477bf19a587508ed13f4538c7a281e (patch) | |
tree | 13395a2bbc6dbc58d0c8b5eaf732b02b67124dc2 | |
parent | c15438eaea8b854d89455ebf7a1c7c4f06fa92f5 (diff) | |
parent | 4b17645d5d60a9aa8ef0810d4fdf962bce407c8a (diff) | |
download | u-boot-67cafc0861477bf19a587508ed13f4538c7a281e.tar.xz |
Merge branch 'master' of git://www.denx.de/git/u-boot-mips
-rw-r--r-- | arch/mips/include/asm/config.h | 3 | ||||
-rw-r--r-- | arch/mips/lib/Makefile | 4 | ||||
-rw-r--r-- | arch/mips/lib/bootm.c | 241 | ||||
-rw-r--r-- | arch/mips/lib/bootm_qemu_mips.c | 62 |
4 files changed, 160 insertions, 150 deletions
diff --git a/arch/mips/include/asm/config.h b/arch/mips/include/asm/config.h index cd29734..3a891ba 100644 --- a/arch/mips/include/asm/config.h +++ b/arch/mips/include/asm/config.h @@ -7,4 +7,7 @@ #ifndef _ASM_CONFIG_H_ #define _ASM_CONFIG_H_ +#define CONFIG_LMB +#define CONFIG_SYS_BOOT_RAMDISK_HIGH + #endif diff --git a/arch/mips/lib/Makefile b/arch/mips/lib/Makefile index e9f82f7..f91406c 100644 --- a/arch/mips/lib/Makefile +++ b/arch/mips/lib/Makefile @@ -19,11 +19,7 @@ LGOBJS := $(addprefix $(obj),$(GLSOBJS)) SOBJS-y += COBJS-y += board.o -ifeq ($(CONFIG_QEMU_MIPS),y) -COBJS-$(CONFIG_CMD_BOOTM) += bootm_qemu_mips.o -else COBJS-$(CONFIG_CMD_BOOTM) += bootm.o -endif SRCS := $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS-y) $(COBJS-y)) diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c index ade9af4..66340ea 100644 --- a/arch/mips/lib/bootm.c +++ b/arch/mips/lib/bootm.c @@ -17,23 +17,148 @@ DECLARE_GLOBAL_DATA_PTR; #define LINUX_MAX_ENVS 256 #define LINUX_MAX_ARGS 256 +#if defined(CONFIG_QEMU_MALTA) +#define mips_boot_qemu_malta 1 +#else +#define mips_boot_qemu_malta 0 +#endif + static int linux_argc; static char **linux_argv; +static char *linux_argp; static char **linux_env; static char *linux_env_p; static int linux_env_idx; -static void linux_params_init(ulong start, char *commandline); -static void linux_env_set(char *env_name, char *env_val); +static ulong arch_get_sp(void) +{ + ulong ret; + + __asm__ __volatile__("move %0, $sp" : "=r"(ret) : ); + + return ret; +} + +void arch_lmb_reserve(struct lmb *lmb) +{ + ulong sp; + + sp = arch_get_sp(); + debug("## Current stack ends at 0x%08lx\n", sp); + + /* adjust sp by 4K to be safe */ + sp -= 4096; + lmb_reserve(lmb, sp, CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp); +} + +static void linux_cmdline_init(void) +{ + linux_argc = 1; + linux_argv = (char **)UNCACHED_SDRAM(gd->bd->bi_boot_params); + linux_argv[0] = 0; + linux_argp = (char *)(linux_argv + LINUX_MAX_ARGS); +} + +static void linux_cmdline_set(const char *value, size_t len) +{ + linux_argv[linux_argc] = linux_argp; + memcpy(linux_argp, value, len); + linux_argp[len] = 0; + + linux_argp += len + 1; + linux_argc++; +} + +static void linux_cmdline_dump(void) +{ + int i; + + debug("## cmdline argv at 0x%p, argp at 0x%p\n", + linux_argv, linux_argp); + + for (i = 1; i < linux_argc; i++) + debug(" arg %03d: %s\n", i, linux_argv[i]); +} + +static void boot_cmdline_linux(bootm_headers_t *images) +{ + const char *bootargs, *next, *quote; + + linux_cmdline_init(); + + bootargs = getenv("bootargs"); + if (!bootargs) + return; + + next = bootargs; + + while (bootargs && *bootargs && linux_argc < LINUX_MAX_ARGS) { + quote = strchr(bootargs, '"'); + next = strchr(bootargs, ' '); + + while (next && quote && quote < next) { + /* + * we found a left quote before the next blank + * now we have to find the matching right quote + */ + next = strchr(quote + 1, '"'); + if (next) { + quote = strchr(next + 1, '"'); + next = strchr(next + 1, ' '); + } + } + + if (!next) + next = bootargs + strlen(bootargs); + + linux_cmdline_set(bootargs, next - bootargs); + + if (*next) + next++; + + bootargs = next; + } + + linux_cmdline_dump(); +} + +static void linux_env_init(void) +{ + linux_env = (char **)(((ulong) linux_argp + 15) & ~15); + linux_env[0] = 0; + linux_env_p = (char *)(linux_env + LINUX_MAX_ENVS); + linux_env_idx = 0; +} + +static void linux_env_set(const char *env_name, const char *env_val) +{ + if (linux_env_idx < LINUX_MAX_ENVS - 1) { + linux_env[linux_env_idx] = linux_env_p; + + strcpy(linux_env_p, env_name); + linux_env_p += strlen(env_name); + + if (mips_boot_qemu_malta) { + linux_env_p++; + linux_env[++linux_env_idx] = linux_env_p; + } else { + *linux_env_p++ = '='; + } + + strcpy(linux_env_p, env_val); + linux_env_p += strlen(env_val); + + linux_env_p++; + linux_env[++linux_env_idx] = 0; + } +} static void boot_prep_linux(bootm_headers_t *images) { - char *commandline = getenv("bootargs"); char env_buf[12]; - char *cp; - - linux_params_init(UNCACHED_SDRAM(gd->bd->bi_boot_params), commandline); + const char *cp; + ulong rd_start, rd_size; #ifdef CONFIG_MEMSIZE_IN_BYTES sprintf(env_buf, "%lu", (ulong)gd->ram_size); @@ -41,15 +166,20 @@ static void boot_prep_linux(bootm_headers_t *images) #else sprintf(env_buf, "%lu", (ulong)(gd->ram_size >> 20)); debug("## Giving linux memsize in MB, %lu\n", - (ulong)(gd->ram_size >> 20)); + (ulong)(gd->ram_size >> 20)); #endif /* CONFIG_MEMSIZE_IN_BYTES */ + rd_start = UNCACHED_SDRAM(images->initrd_start); + rd_size = images->initrd_end - images->initrd_start; + + linux_env_init(); + linux_env_set("memsize", env_buf); - sprintf(env_buf, "0x%08X", (uint) UNCACHED_SDRAM(images->rd_start)); + sprintf(env_buf, "0x%08lX", rd_start); linux_env_set("initrd_start", env_buf); - sprintf(env_buf, "0x%X", (uint) (images->rd_end - images->rd_start)); + sprintf(env_buf, "0x%lX", rd_size); linux_env_set("initrd_size", env_buf); sprintf(env_buf, "0x%08X", (uint) (gd->bd->bi_flashstart)); @@ -65,33 +195,42 @@ static void boot_prep_linux(bootm_headers_t *images) cp = getenv("eth1addr"); if (cp) linux_env_set("eth1addr", cp); + + if (mips_boot_qemu_malta) + linux_env_set("modetty0", "38400n8r"); } static void boot_jump_linux(bootm_headers_t *images) { - void (*theKernel) (int, char **, char **, int *); - - /* find kernel entry point */ - theKernel = (void (*)(int, char **, char **, int *))images->ep; + typedef void __noreturn (*kernel_entry_t)(int, ulong, ulong, ulong); + kernel_entry_t kernel = (kernel_entry_t) images->ep; + ulong linux_extra = 0; - debug("## Transferring control to Linux (at address %08lx) ...\n", - (ulong) theKernel); + debug("## Transferring control to Linux (at address %p) ...\n", kernel); bootstage_mark(BOOTSTAGE_ID_RUN_OS); + if (mips_boot_qemu_malta) + linux_extra = gd->ram_size; + /* we assume that the kernel is in place */ printf("\nStarting kernel ...\n\n"); - theKernel(linux_argc, linux_argv, linux_env, 0); + kernel(linux_argc, (ulong)linux_argv, (ulong)linux_env, linux_extra); } int do_bootm_linux(int flag, int argc, char * const argv[], bootm_headers_t *images) { /* No need for those on MIPS */ - if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE) + if (flag & BOOTM_STATE_OS_BD_T) return -1; + if (flag & BOOTM_STATE_OS_CMDLINE) { + boot_cmdline_linux(images); + return 0; + } + if (flag & BOOTM_STATE_OS_PREP) { boot_prep_linux(images); return 0; @@ -102,76 +241,10 @@ int do_bootm_linux(int flag, int argc, char * const argv[], return 0; } + boot_cmdline_linux(images); boot_prep_linux(images); boot_jump_linux(images); /* does not return */ return 1; } - -static void linux_params_init(ulong start, char *line) -{ - char *next, *quote, *argp; - - linux_argc = 1; - linux_argv = (char **) start; - linux_argv[0] = 0; - argp = (char *) (linux_argv + LINUX_MAX_ARGS); - - next = line; - - while (line && *line && linux_argc < LINUX_MAX_ARGS) { - quote = strchr(line, '"'); - next = strchr(line, ' '); - - while (next && quote && quote < next) { - /* we found a left quote before the next blank - * now we have to find the matching right quote - */ - next = strchr(quote + 1, '"'); - if (next) { - quote = strchr(next + 1, '"'); - next = strchr(next + 1, ' '); - } - } - - if (!next) - next = line + strlen(line); - - linux_argv[linux_argc] = argp; - memcpy(argp, line, next - line); - argp[next - line] = 0; - - argp += next - line + 1; - linux_argc++; - - if (*next) - next++; - - line = next; - } - - linux_env = (char **) (((ulong) argp + 15) & ~15); - linux_env[0] = 0; - linux_env_p = (char *) (linux_env + LINUX_MAX_ENVS); - linux_env_idx = 0; -} - -static void linux_env_set(char *env_name, char *env_val) -{ - if (linux_env_idx < LINUX_MAX_ENVS - 1) { - linux_env[linux_env_idx] = linux_env_p; - - strcpy(linux_env_p, env_name); - linux_env_p += strlen(env_name); - - strcpy(linux_env_p, "="); - linux_env_p += 1; - - strcpy(linux_env_p, env_val); - linux_env_p += strlen(env_val); - - linux_env_p++; - linux_env[++linux_env_idx] = 0; - } -} diff --git a/arch/mips/lib/bootm_qemu_mips.c b/arch/mips/lib/bootm_qemu_mips.c deleted file mode 100644 index 910ab73..0000000 --- a/arch/mips/lib/bootm_qemu_mips.c +++ /dev/null @@ -1,62 +0,0 @@ -/* - * (C) Copyright 2008 - * Jean-Christophe PLAGNIOL-VILLARD <jcplagniol@jcrosoft.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <command.h> -#include <image.h> -#include <asm/byteorder.h> -#include <asm/addrspace.h> - -DECLARE_GLOBAL_DATA_PTR; - -int do_bootm_linux(int flag, int argc, char * const argv[], - bootm_headers_t *images) -{ - void (*theKernel) (int, char **, char **, int *); - char *bootargs = getenv("bootargs"); - char *start; - uint len; - - /* find kernel entry point */ - theKernel = (void (*)(int, char **, char **, int *))images->ep; - - bootstage_mark(BOOTSTAGE_ID_RUN_OS); - - debug("## Transferring control to Linux (at address %08lx) ...\n", - (ulong) theKernel); - - gd->bd->bi_boot_params = gd->bd->bi_memstart + (16 << 20) - 256; - debug("%-12s= 0x%08lX\n", "boot_params", (ulong)gd->bd->bi_boot_params); - - /* set Magic */ - *(int32_t *)(gd->bd->bi_boot_params - 4) = 0x12345678; - /* set ram_size */ - *(int32_t *)(gd->bd->bi_boot_params - 8) = gd->ram_size; - - start = (char *)gd->bd->bi_boot_params; - - len = strlen(bootargs); - - strncpy(start, bootargs, len + 1); - - start += len; - - len = images->rd_end - images->rd_start; - if (len > 0) { - start += sprintf(start, " rd_start=0x%08X rd_size=0x%0X", - (uint) UNCACHED_SDRAM(images->rd_start), - (uint) len); - } - - /* we assume that the kernel is in place */ - printf("\nStarting kernel ...\n\n"); - - theKernel(0, NULL, NULL, 0); - - /* does not return */ - return 1; -} |