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authorGabe Black <gabeblack@chromium.org>2011-12-05 12:09:27 +0000
committerGraeme Russ <graeme.russ@gmail.com>2011-12-19 13:26:17 +1100
commit6f9d9986d54cb53e50b33a044a9c89572736d96a (patch)
treee72614527f18accfaacca84be27275fd30f6b32c /arch/x86
parent69370d144a9e8133461f1662131fbf97ad121165 (diff)
downloadu-boot-linaro-stable-6f9d9986d54cb53e50b33a044a9c89572736d96a.tar.gz
x86: Add support for specifying an initrd with the zboot command
This change finishes plumbing the initrd support built into the zboot mechanism out to the command interface. It also fixes a bug in the command declaration where the kernel size could be passed as an optional second parameter but not enough arguments were allowed. Signed-off-by: Gabe Black <gabeblack@chromium.org>
Diffstat (limited to 'arch/x86')
-rw-r--r--arch/x86/lib/zimage.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/arch/x86/lib/zimage.c b/arch/x86/lib/zimage.c
index 0cbb57101..bb4051717 100644
--- a/arch/x86/lib/zimage.c
+++ b/arch/x86/lib/zimage.c
@@ -321,6 +321,8 @@ int do_zboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
void *load_address;
char *s;
ulong bzImage_size = 0;
+ ulong initrd_addr = 0;
+ ulong initrd_size = 0;
disable_interrupts();
@@ -337,9 +339,15 @@ int do_zboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
if (s)
bzImage_addr = (void *)simple_strtoul(s, NULL, 16);
- if (argc >= 3)
+ if (argc >= 3) {
/* argv[2] holds the size of the bzImage */
bzImage_size = simple_strtoul(argv[2], NULL, 16);
+ }
+
+ if (argc >= 4)
+ initrd_addr = simple_strtoul(argv[3], NULL, 16);
+ if (argc >= 5)
+ initrd_size = simple_strtoul(argv[4], NULL, 16);
/* Lets look for */
base_ptr = load_zimage(bzImage_addr, bzImage_size, &load_address);
@@ -349,7 +357,7 @@ int do_zboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
return -1;
}
if (setup_zimage(base_ptr, (char *)base_ptr + COMMAND_LINE_OFFSET,
- 0, 0, 0)) {
+ 0, initrd_addr, initrd_size)) {
printf("Setting up boot parameters failed ...\n");
return -1;
}
@@ -366,7 +374,14 @@ int do_zboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
}
U_BOOT_CMD(
- zboot, 2, 0, do_zboot,
+ zboot, 5, 0, do_zboot,
"Boot bzImage",
- ""
+ "[addr] [size] [initrd addr] [initrd size]\n"
+ " addr - The optional starting address of the bzimage.\n"
+ " If not set it defaults to the environment\n"
+ " variable \"fileaddr\".\n"
+ " size - The optional size of the bzimage. Defaults to\n"
+ " zero.\n"
+ " initrd addr - The address of the initrd image to use, if any.\n"
+ " initrd size - The size of the initrd image to use, if any.\n"
);