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From 36d2aafec10998735f93b47a96a0f66c52484af7 Mon Sep 17 00:00:00 2001
From: Weijie Gao <weijie.gao@mediatek.com>
Date: Mon, 25 Jul 2022 11:27:02 +0800
Subject: [PATCH 13/30] cmd: sf: add support to read flash unique ID
This patch adds support to display unique ID from spi-nor flashes
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
---
cmd/sf.c | 11 +++++++++++
1 file changed, 11 insertions(+)
--- a/cmd/sf.c
+++ b/cmd/sf.c
@@ -421,6 +421,14 @@ static int do_spi_protect(int argc, char
return ret == 0 ? 0 : 1;
}
+static int do_spi_flash_read_uuid(void)
+{
+ int ret = 0;
+ ret = flash->read_uuid(flash);
+
+ return ret == 0 ? 0 : 1;
+}
+
enum {
STAGE_ERASE,
STAGE_CHECK,
@@ -615,6 +623,8 @@ static int do_spi_flash(struct cmd_tbl *
ret = do_spi_flash_erase(argc, argv);
else if (IS_ENABLED(CONFIG_SPI_FLASH_LOCK) && strcmp(cmd, "protect") == 0)
ret = do_spi_protect(argc, argv);
+ else if (strcmp(cmd, "uuid") == 0)
+ ret = do_spi_flash_read_uuid();
else if (IS_ENABLED(CONFIG_CMD_SF_TEST) && !strcmp(cmd, "test"))
ret = do_spi_flash_test(argc, argv);
else
@@ -638,6 +648,7 @@ U_BOOT_LONGHELP(sf,
"sf update addr offset|partition len - erase and write `len' bytes from memory\n"
" at `addr' to flash at `offset'\n"
" or to start of mtd `partition'\n"
+ "sf uuid - read uuid from flash\n"
#ifdef CONFIG_SPI_FLASH_LOCK
"sf protect lock/unlock sector len - protect/unprotect 'len' bytes starting\n"
" at address 'sector'"
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