diff options
Diffstat (limited to 'qemu/roms/u-boot/arch/mips/lib/bootm.c')
| -rw-r--r-- | qemu/roms/u-boot/arch/mips/lib/bootm.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/qemu/roms/u-boot/arch/mips/lib/bootm.c b/qemu/roms/u-boot/arch/mips/lib/bootm.c deleted file mode 100644 index 71bb0d2a1..000000000 --- a/qemu/roms/u-boot/arch/mips/lib/bootm.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - * (C) Copyright 2003 - * Wolfgang Denk, DENX Software Engineering, wd@denx.de. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#include <common.h> -#include <command.h> -#include <image.h> -#include <u-boot/zlib.h> -#include <asm/byteorder.h> -#include <asm/addrspace.h> - -DECLARE_GLOBAL_DATA_PTR; - -#define LINUX_MAX_ENVS 256 -#define LINUX_MAX_ARGS 256 - -#if defined(CONFIG_MALTA) -#define mips_boot_malta 1 -#else -#define mips_boot_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 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_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 env_buf[12]; - const char *cp; - ulong rd_start, rd_size; - -#ifdef CONFIG_MEMSIZE_IN_BYTES - sprintf(env_buf, "%lu", (ulong)gd->ram_size); - debug("## Giving linux memsize in bytes, %lu\n", (ulong)gd->ram_size); -#else - sprintf(env_buf, "%lu", (ulong)(gd->ram_size >> 20)); - debug("## Giving linux memsize in MB, %lu\n", - (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%08lX", rd_start); - linux_env_set("initrd_start", env_buf); - - sprintf(env_buf, "0x%lX", rd_size); - linux_env_set("initrd_size", env_buf); - - sprintf(env_buf, "0x%08X", (uint) (gd->bd->bi_flashstart)); - linux_env_set("flash_start", env_buf); - - sprintf(env_buf, "0x%X", (uint) (gd->bd->bi_flashsize)); - linux_env_set("flash_size", env_buf); - - cp = getenv("ethaddr"); - if (cp) - linux_env_set("ethaddr", cp); - - cp = getenv("eth1addr"); - if (cp) - linux_env_set("eth1addr", cp); - - if (mips_boot_malta) { - sprintf(env_buf, "%un8r", gd->baudrate); - linux_env_set("modetty0", env_buf); - } -} - -static void boot_jump_linux(bootm_headers_t *images) -{ - 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 %p) ...\n", kernel); - - bootstage_mark(BOOTSTAGE_ID_RUN_OS); - - if (mips_boot_malta) - linux_extra = gd->ram_size; - - /* we assume that the kernel is in place */ - printf("\nStarting kernel ...\n\n"); - - 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) - 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; - } - - if (flag & BOOTM_STATE_OS_GO) { - boot_jump_linux(images); - return 0; - } - - boot_cmdline_linux(images); - boot_prep_linux(images); - boot_jump_linux(images); - - /* does not return */ - return 1; -} |