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authorLokesh Vutla <lokeshvutla@ti.com>2016-09-16 10:17:12 +0530
committerTom Rini <trini@konsulko.com>2016-10-01 20:05:10 -0400
commit5d214065167ed4052b552a7224b9fbf807b8c107 (patch)
treea67b7d45f9abdf75b8269f05cde0665820b181ac /arch/arm
parent86e3ca1178820f0bfd62607d9198eb3c91c00e95 (diff)
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ARM: keystone2: Add support for parsing monitor header
Given that boot monitor image is being generated to a specific target location depending on the SoC and U-boot relies on addr_mon env variable to be aligned with boot monitor target location. When ever the target address gets updated in boot monitor, it is difficult to sync between u-boot and boot monitor and also there is no way to update user that boot monitor image is updated. To avoid this problem, boot monitor image is being generated with mkimage header. Adding support in mon_install command for parsing this header. Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-keystone/cmd_mon.c22
1 files changed, 18 insertions, 4 deletions
diff --git a/arch/arm/mach-keystone/cmd_mon.c b/arch/arm/mach-keystone/cmd_mon.c
index 6a9bdc9..591e758 100644
--- a/arch/arm/mach-keystone/cmd_mon.c
+++ b/arch/arm/mach-keystone/cmd_mon.c
@@ -9,14 +9,16 @@
#include <common.h>
#include <command.h>
+#include <image.h>
#include <mach/mon.h>
asm(".arch_extension sec\n\t");
static int do_mon_install(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
- u32 addr, dpsc_base = 0x1E80000, freq;
+ u32 addr, dpsc_base = 0x1E80000, freq, load_addr, size;
int rcode = 0;
+ struct image_header *header;
if (argc < 2)
return CMD_RET_USAGE;
@@ -25,9 +27,21 @@ static int do_mon_install(cmd_tbl_t *cmdtp, int flag, int argc,
addr = simple_strtoul(argv[1], NULL, 16);
- rcode = mon_install(addr, dpsc_base, freq);
- printf("## installed monitor, freq [%d], status %d\n",
- freq, rcode);
+ header = (struct image_header *)addr;
+
+ if (image_get_magic(header) != IH_MAGIC) {
+ printf("## Please update monitor image\n");
+ return -EFAULT;
+ }
+
+ load_addr = image_get_load(header);
+ size = image_get_data_size(header);
+ memcpy((void *)load_addr, (void *)(addr + sizeof(struct image_header)),
+ size);
+
+ rcode = mon_install(load_addr, dpsc_base, freq);
+ printf("## installed monitor @ 0x%x, freq [%d], status %d\n",
+ load_addr, freq, rcode);
return 0;
}