common: cmd_elf: Add support to disable start of application

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>

diff --git a/common/cmd_elf.c b/common/cmd_elf.c
index 58b61c2..c745371 100644 (file)
--- 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);
 
        /*