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Diffstat (limited to 'cmd/bootm.c')
-rw-r--r--cmd/bootm.c35
1 files changed, 33 insertions, 2 deletions
diff --git a/cmd/bootm.c b/cmd/bootm.c
index e8b7066..1f70ee9 100644
--- a/cmd/bootm.c
+++ b/cmd/bootm.c
@@ -44,6 +44,9 @@ static int do_imls(struct cmd_tbl *cmdtp, int flag, int argc,
static struct cmd_tbl cmd_bootm_sub[] = {
U_BOOT_CMD_MKENT(start, 0, 1, (void *)BOOTM_STATE_START, "", ""),
U_BOOT_CMD_MKENT(loados, 0, 1, (void *)BOOTM_STATE_LOADOS, "", ""),
+#ifdef CONFIG_CMD_BOOTM_PRE_LOAD
+ U_BOOT_CMD_MKENT(preload, 0, 1, (void *)BOOTM_STATE_PRE_LOAD, "", ""),
+#endif
#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
U_BOOT_CMD_MKENT(ramdisk, 0, 1, (void *)BOOTM_STATE_RAMDISK, "", ""),
#endif
@@ -57,6 +60,20 @@ static struct cmd_tbl cmd_bootm_sub[] = {
U_BOOT_CMD_MKENT(go, 0, 1, (void *)BOOTM_STATE_OS_GO, "", ""),
};
+#if defined(CONFIG_CMD_BOOTM_PRE_LOAD)
+static ulong bootm_get_addr(int argc, char *const argv[])
+{
+ ulong addr;
+
+ if (argc > 0)
+ addr = hextoul(argv[0], NULL);
+ else
+ addr = image_load_addr;
+
+ return addr;
+}
+#endif
+
static int do_bootm_subcommand(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
@@ -70,7 +87,12 @@ static int do_bootm_subcommand(struct cmd_tbl *cmdtp, int flag, int argc,
if (c) {
state = (long)c->cmd;
if (state == BOOTM_STATE_START)
- state |= BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER;
+ state |= BOOTM_STATE_PRE_LOAD | BOOTM_STATE_FINDOS |
+ BOOTM_STATE_FINDOTHER;
+#if defined(CONFIG_CMD_BOOTM_PRE_LOAD)
+ if (state == BOOTM_STATE_PRE_LOAD)
+ state |= BOOTM_STATE_START;
+#endif
} else {
/* Unrecognized command */
return CMD_RET_USAGE;
@@ -84,6 +106,12 @@ static int do_bootm_subcommand(struct cmd_tbl *cmdtp, int flag, int argc,
ret = do_bootm_states(cmdtp, flag, argc, argv, state, &images, 0);
+#if defined(CONFIG_CMD_BOOTM_PRE_LOAD)
+ if (!ret && (state & BOOTM_STATE_PRE_LOAD))
+ env_set_hex("loadaddr_verified",
+ bootm_get_addr(argc, argv) + image_load_offset);
+#endif
+
return ret;
}
@@ -126,7 +154,7 @@ int do_bootm(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
}
return do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START |
- BOOTM_STATE_FINDOS | BOOTM_STATE_FINDOTHER |
+ BOOTM_STATE_FINDOS | BOOTM_STATE_PRE_LOAD | BOOTM_STATE_FINDOTHER |
BOOTM_STATE_LOADOS |
#ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
BOOTM_STATE_RAMDISK |
@@ -176,6 +204,9 @@ static char bootm_help_text[] =
"must be\n"
"issued in the order below (it's ok to not issue all sub-commands):\n"
"\tstart [addr [arg ...]]\n"
+#if defined(CONFIG_CMD_BOOTM_PRE_LOAD)
+ "\tpreload [addr [arg ..]] - run only the preload stage\n"
+#endif
"\tloados - load OS image\n"
#if defined(CONFIG_SYS_BOOT_RAMDISK_HIGH)
"\tramdisk - relocate initrd, set env initrd_start/initrd_end\n"