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[U-Boot] common: cmd_elf: Add support to disable start of application

Message ID 56b97eb20ad0f2d706e82cdf5075051362fccefa.1425901604.git.michal.simek@xilinx.com
State Accepted
Delegated to: Tom Rini
Headers show

Commit Message

Michal Simek March 9, 2015, 11:46 a.m. UTC 
From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>

Added support to disable the start of application by using
a environment variable autostart

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

 common/cmd_elf.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Tom Rini March 9, 2015, 4:47 p.m. UTC | #1 
On Mon, Mar 09, 2015 at 12:46:47PM +0100, Michal Simek wrote:

> From: Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com>
> 
> Added support to disable the start of application by using
> a environment variable autostart
> 
> Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
> Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Applied to u-boot/master, thanks!
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Patch

diff --git a/common/cmd_elf.c b/common/cmd_elf.c
index 58b61c26403b..c745371506ce 100644
--- a/common/cmd_elf.c
+++ b/common/cmd_elf.c
@@ -95,6 +95,7 @@  int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	unsigned long addr;		/* Address of the ELF image     */
 	unsigned long rc;		/* Return value from user code  */
 	char *sload, *saddr;
+	const char *ep = getenv("autostart");
 
 	/* -------------------------------------------------- */
 	int rcode = 0;
@@ -123,6 +124,9 @@  int do_bootelf(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 	else
 		addr = load_elf_image_shdr(addr);
 
+	if (ep && !strcmp(ep, "no"))
+		return rcode;
+
 	printf("## Starting application at 0x%08lx ...\n", addr);
 
 	/*