From e60939acbebd07161f3978d1c6f13123fdd2ebf2 Mon Sep 17 00:00:00 2001 From: Weijie Gao Date: Mon, 25 Jul 2022 11:27:02 +0800 Subject: [PATCH 50/71] 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 --- cmd/sf.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) --- a/cmd/sf.c +++ b/cmd/sf.c @@ -412,6 +412,14 @@ 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, @@ -606,6 +614,8 @@ 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 @@ -636,6 +646,7 @@ U_BOOT_LONGHELP(sf, #ifdef CONFIG_CMD_SF_TEST "\nsf test offset len - run a very basic destructive test" #endif + "sf uuid - read uuid from flash" ); U_BOOT_CMD(