Using this command user can print efuse memory:
$ sm efusedump 0 10
00000000: ff 00 31 00 00 ff 66 00 00 00 ..1...f...
Signed-off-by: Alexey Romanov <avroma...@sberdevices.ru>
---
cmd/meson/sm.c | 35 ++++++++++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/cmd/meson/sm.c b/cmd/meson/sm.c
index 1a3a2c7920a..9493f4fd846 100644
--- a/cmd/meson/sm.c
+++ b/cmd/meson/sm.c
@@ -117,11 +117,43 @@ static int do_efuse_write(struct cmd_tbl *cmdtp, int
flag, int argc,
return CMD_RET_SUCCESS;
}
+static int do_efuse_dump(struct cmd_tbl *cmdtp, int flag, int argc,
+ char *const argv[])
+{
+ ulong offset, size;
+ u8 *buffer;
+ int ret;
+
+ if (argc != 3)
+ return CMD_RET_USAGE;
+
+ offset = simple_strtoul(argv[1], NULL, 0);
+ size = simple_strtoul(argv[2], NULL, 0);
+ buffer = malloc(size);
+ if (!buffer) {
+ pr_err("Failed to allocate %lu bytes\n", size);
+ return CMD_RET_FAILURE;
+ }
+
+ ret = meson_sm_read_efuse(offset, (void *)buffer, size);
+ if (ret != size) {
+ ret = CMD_RET_FAILURE;
+ goto free_buffer;
+ }
+
+ print_buffer(0, buffer, 1, size, 0);
+
+free_buffer:
+ free(buffer);
+ return ret;
+}
+
static struct cmd_tbl cmd_sm_sub[] = {
U_BOOT_CMD_MKENT(serial, 2, 1, do_sm_serial, "", ""),
U_BOOT_CMD_MKENT(reboot_reason, 1, 1, do_sm_reboot_reason, "", ""),
U_BOOT_CMD_MKENT(efuseread, 4, 1, do_efuse_read, "", ""),
U_BOOT_CMD_MKENT(efusewrite, 4, 0, do_efuse_write, "", ""),
+ U_BOOT_CMD_MKENT(efusedump, 3, 1, do_efuse_dump, "", ""),
};
static int do_sm(struct cmd_tbl *cmdtp, int flag, int argc,
@@ -150,5 +182,6 @@ U_BOOT_CMD(
"serial <address> - read chip unique id to memory address\n"
"sm reboot_reason [name] - get reboot reason and store to environment\n"
"sm efuseread <offset> <size> <address> - read efuse to memory
address\n"
- "sm efusewrite <offset> <size> <address> - write into efuse from memory
address"
+ "sm efusewrite <offset> <size> <address> - write into efuse from memory
address\n"
+ "sm efusedump <offset> <size> - dump efuse data range to console"
);
--
2.25.1
