#include <common.h>
#include <image.h>
+#include <fdt_support.h>
#include <asm/addrspace.h>
+#include <asm/io.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;
/* adjust sp by 4K to be safe */
sp -= 4096;
- lmb_reserve(lmb, sp, CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp);
-}
-
-static int boot_setup_linux(bootm_headers_t *images)
-{
- int ret;
- ulong rd_len;
-
- rd_len = images->rd_end - images->rd_start;
- ret = boot_ramdisk_high(&images->lmb, images->rd_start,
- rd_len, &images->initrd_start, &images->initrd_end);
- if (ret)
- return ret;
-
- return 0;
+ lmb_reserve(lmb, sp, gd->ram_top - sp);
}
static void linux_cmdline_init(void)
debug(" arg %03d: %s\n", i, linux_argv[i]);
}
-static void boot_cmdline_linux(bootm_headers_t *images)
+static void linux_cmdline_legacy(bootm_headers_t *images)
{
const char *bootargs, *next, *quote;
bootargs = next;
}
+}
+
+static void linux_cmdline_append(bootm_headers_t *images)
+{
+ char buf[24];
+ ulong mem, rd_start, rd_size;
+
+ /* append mem */
+ mem = gd->ram_size >> 20;
+ sprintf(buf, "mem=%luM", mem);
+ linux_cmdline_set(buf, strlen(buf));
+
+ /* append rd_start and rd_size */
+ rd_start = images->initrd_start;
+ rd_size = images->initrd_end - images->initrd_start;
- linux_cmdline_dump();
+ if (rd_size) {
+ sprintf(buf, "rd_start=0x%08lX", rd_start);
+ linux_cmdline_set(buf, strlen(buf));
+ sprintf(buf, "rd_size=0x%lX", rd_size);
+ linux_cmdline_set(buf, strlen(buf));
+ }
}
static void linux_env_init(void)
strcpy(linux_env_p, env_name);
linux_env_p += strlen(env_name);
- if (mips_boot_malta) {
+ if (CONFIG_IS_ENABLED(MALTA)) {
linux_env_p++;
linux_env[++linux_env_idx] = linux_env_p;
} else {
}
}
-static void boot_prep_linux(bootm_headers_t *images)
+static void linux_env_legacy(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 */
+ if (CONFIG_IS_ENABLED(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));
+ }
rd_start = UNCACHED_SDRAM(images->initrd_start);
rd_size = images->initrd_end - images->initrd_start;
if (cp)
linux_env_set("eth1addr", cp);
- if (mips_boot_malta) {
+ if (CONFIG_IS_ENABLED(MALTA)) {
sprintf(env_buf, "%un8r", gd->baudrate);
linux_env_set("modetty0", env_buf);
}
}
+static int boot_reloc_ramdisk(bootm_headers_t *images)
+{
+ ulong rd_len = images->rd_end - images->rd_start;
+
+ /*
+ * In case of legacy uImage's, relocation of ramdisk is already done
+ * by do_bootm_states() and should not repeated in 'bootm prep'.
+ */
+ if (images->state & BOOTM_STATE_RAMDISK) {
+ debug("## Ramdisk already relocated\n");
+ return 0;
+ }
+
+ return boot_ramdisk_high(&images->lmb, images->rd_start,
+ rd_len, &images->initrd_start, &images->initrd_end);
+}
+
+static int boot_reloc_fdt(bootm_headers_t *images)
+{
+ /*
+ * In case of legacy uImage's, relocation of FDT is already done
+ * by do_bootm_states() and should not repeated in 'bootm prep'.
+ */
+ if (images->state & BOOTM_STATE_FDT) {
+ debug("## FDT already relocated\n");
+ return 0;
+ }
+
+#if CONFIG_IS_ENABLED(MIPS_BOOT_FDT) && CONFIG_IS_ENABLED(OF_LIBFDT)
+ boot_fdt_add_mem_rsv_regions(&images->lmb, images->ft_addr);
+ return boot_relocate_fdt(&images->lmb, &images->ft_addr,
+ &images->ft_len);
+#else
+ return 0;
+#endif
+}
+
+int arch_fixup_fdt(void *blob)
+{
+#if CONFIG_IS_ENABLED(MIPS_BOOT_FDT) && CONFIG_IS_ENABLED(OF_LIBFDT)
+ u64 mem_start = virt_to_phys((void *)gd->bd->bi_memstart);
+ u64 mem_size = gd->ram_size;
+
+ return fdt_fixup_memory_banks(blob, &mem_start, &mem_size, 1);
+#else
+ return 0;
+#endif
+}
+
+static int boot_setup_fdt(bootm_headers_t *images)
+{
+ return image_setup_libfdt(images, images->ft_addr, images->ft_len,
+ &images->lmb);
+}
+
+static void boot_prep_linux(bootm_headers_t *images)
+{
+ boot_reloc_ramdisk(images);
+
+ if (CONFIG_IS_ENABLED(MIPS_BOOT_FDT) && images->ft_len) {
+ boot_reloc_fdt(images);
+ boot_setup_fdt(images);
+ } else {
+ if (CONFIG_IS_ENABLED(MIPS_BOOT_CMDLINE_LEGACY)) {
+ linux_cmdline_legacy(images);
+
+ if (!CONFIG_IS_ENABLED(MIPS_BOOT_ENV_LEGACY))
+ linux_cmdline_append(images);
+
+ linux_cmdline_dump();
+ }
+
+ if (CONFIG_IS_ENABLED(MIPS_BOOT_ENV_LEGACY))
+ linux_env_legacy(images);
+ }
+}
+
static void boot_jump_linux(bootm_headers_t *images)
{
typedef void __noreturn (*kernel_entry_t)(int, ulong, ulong, ulong);
bootstage_mark(BOOTSTAGE_ID_RUN_OS);
- if (mips_boot_malta)
+ if (CONFIG_IS_ENABLED(MALTA))
linux_extra = gd->ram_size;
- /* we assume that the kernel is in place */
- printf("\nStarting kernel ...\n\n");
+#if CONFIG_IS_ENABLED(BOOTSTAGE_FDT)
+ bootstage_fdt_add_report();
+#endif
+#if CONFIG_IS_ENABLED(BOOTSTAGE_REPORT)
+ bootstage_report();
+#endif
- kernel(linux_argc, (ulong)linux_argv, (ulong)linux_env, linux_extra);
+ if (images->ft_len)
+ kernel(-2, (ulong)images->ft_addr, 0, 0);
+ else
+ 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)
{
- int ret;
-
/* 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);
+ /*
+ * Cmdline init has been moved to 'bootm prep' because it has to be
+ * done after relocation of ramdisk to always pass correct values
+ * for rd_start and rd_size to Linux kernel.
+ */
+ if (flag & BOOTM_STATE_OS_CMDLINE)
return 0;
- }
if (flag & BOOTM_STATE_OS_PREP) {
boot_prep_linux(images);
return 0;
}
- if (flag & BOOTM_STATE_OS_GO) {
+ if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
boot_jump_linux(images);
return 0;
}
- ret = boot_setup_linux(images);
- if (ret)
- return ret;
-
- boot_cmdline_linux(images);
- boot_prep_linux(images);
- boot_jump_linux(images);
-
/* does not return */
return 1;
}
projects / platform / kernel / u-boot.git / blobdiff