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Diffstat (limited to 'arch')
-rw-r--r--arch/mips/include/asm/config.h3
-rw-r--r--arch/mips/lib/Makefile4
-rw-r--r--arch/mips/lib/bootm.c241
-rw-r--r--arch/mips/lib/bootm_qemu_mips.c62
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;
-}
generated by cgit v1.1 at 2024-12-26 18:13:32 +0000