[U-Boot] [PATCH 1/3] MIPS: bootm.c: separate linux jump code
Gabor Juhos
juhosg at openwrt.org
Mon Jan 7 13:53:40 CET 2013
Move the actual jump code into a separate function.
This make the code reusable for bootm subcommands.
Signed-off-by: Gabor Juhos <juhosg at openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck at googlemail.com>
---
arch/mips/lib/bootm.c | 32 +++++++++++++++++++-------------
1 file changed, 19 insertions(+), 13 deletions(-)
diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c
index 4ac712a..689d17b 100644
--- a/arch/mips/lib/bootm.c
+++ b/arch/mips/lib/bootm.c
@@ -43,10 +43,27 @@ 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 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;
+
+ debug("## Transferring control to Linux (at address %08lx) ...\n",
+ (ulong) theKernel);
+
+ bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+
+ /* we assume that the kernel is in place */
+ printf("\nStarting kernel ...\n\n");
+
+ theKernel(linux_argc, linux_argv, linux_env, 0);
+}
+
int do_bootm_linux(int flag, int argc, char * const argv[],
bootm_headers_t *images)
{
- void (*theKernel) (int, char **, char **, int *);
char *commandline = getenv("bootargs");
char env_buf[12];
char *cp;
@@ -54,14 +71,6 @@ int do_bootm_linux(int flag, int argc, char * const argv[],
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO))
return 1;
- /* 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);
-
linux_params_init(UNCACHED_SDRAM(gd->bd->bi_boot_params), commandline);
#ifdef CONFIG_MEMSIZE_IN_BYTES
@@ -95,10 +104,7 @@ int do_bootm_linux(int flag, int argc, char * const argv[],
if (cp)
linux_env_set("eth1addr", cp);
- /* we assume that the kernel is in place */
- printf("\nStarting kernel ...\n\n");
-
- theKernel(linux_argc, linux_argv, linux_env, 0);
+ boot_jump_linux(images);
/* does not return */
return 1;
--
1.7.10
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