package/boot/uboot-mediatek/patches/100-15-cmd-sf-add-support-to-read-flash-unique-ID.patch

   1 From e60939acbebd07161f3978d1c6f13123fdd2ebf2 Mon Sep 17 00:00:00 2001
   2 From: Weijie Gao <weijie.gao@mediatek.com>
   3 Date: Mon, 25 Jul 2022 11:27:02 +0800
   4 Subject: [PATCH 50/71] cmd: sf: add support to read flash unique ID
   5
   6 This patch adds support to display unique ID from spi-nor flashes
   7
   8 Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
   9 ---
  10  cmd/sf.c | 13 ++++++++++++-
  11  1 file changed, 12 insertions(+), 1 deletion(-)
  12
  13 --- a/cmd/sf.c
  14 +++ b/cmd/sf.c
  15 @@ -407,6 +407,14 @@ static int do_spi_protect(int argc, char
  16         return ret == 0 ? 0 : 1;
  17  }
  18
  19 +static int do_spi_flash_read_uuid(void)
  20 +{
  21 +       int ret = 0;
  22 +       ret = flash->read_uuid(flash);
  23 +
  24 +       return ret == 0 ? 0 : 1;
  25 +}
  26 +
  27  enum {
  28         STAGE_ERASE,
  29         STAGE_CHECK,
  30 @@ -603,6 +611,8 @@ static int do_spi_flash(struct cmd_tbl *
  31                 ret = do_spi_flash_erase(argc, argv);
  32         else if (strcmp(cmd, "protect") == 0)
  33                 ret = do_spi_protect(argc, argv);
  34 +       else if (strcmp(cmd, "uuid") == 0)
  35 +               ret = do_spi_flash_read_uuid();
  36         else if (IS_ENABLED(CONFIG_CMD_SF_TEST) && !strcmp(cmd, "test"))
  37                 ret = do_spi_flash_test(argc, argv);
  38         else
  39 @@ -633,7 +643,8 @@ static const char long_help[] =
  40         "                                         at `addr' to flash at `offset'\n"
  41         "                                         or to start of mtd `partition'\n"
  42         "sf protect lock/unlock sector len      - protect/unprotect 'len' bytes starting\n"
  43 -       "                                         at address 'sector'"
  44 +       "                                         at address 'sector'\n"
  45 +       "sf uuid                                        - read uuid from flash"
  46  #ifdef CONFIG_CMD_SF_TEST
  47         "\nsf test offset len           - run a very basic destructive test"
  48  #endif