package/boot/uboot-mediatek/patches/100-26-env-ubi-add-support-to-create-environment-volume-if-.patch

   1 From fc0c70a7c6a088072d0c77e5a59d5e9b7754c6db Mon Sep 17 00:00:00 2001
   2 From: Weijie Gao <weijie.gao@mediatek.com>
   3 Date: Mon, 25 Jul 2022 17:01:20 +0800
   4 Subject: [PATCH 61/71] env: ubi: add support to create environment volume if
   5  it does not exist
   6
   7 Add an option to allow environment volume being auto created if not exist.
   8
   9 Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
  10 ---
  11  env/Kconfig |  6 ++++++
  12  env/ubi.c   | 20 ++++++++++++++++++++
  13  2 files changed, 26 insertions(+)
  14
  15 --- a/env/Kconfig
  16 +++ b/env/Kconfig
  17 @@ -689,6 +689,12 @@ config ENV_UBI_VOLUME_REDUND
  18         help
  19           Name of the redundant volume that you want to store the environment in.
  20
  21 +config ENV_UBI_VOLUME_CREATE
  22 +       bool "Create UBI volume if not exist"
  23 +       depends on ENV_IS_IN_UBI
  24 +       help
  25 +         Create the UBI volume if it does not exist.
  26 +
  27  config ENV_UBI_VID_OFFSET
  28         int "ubi environment VID offset"
  29         depends on ENV_IS_IN_UBI
  30 --- a/env/ubi.c
  31 +++ b/env/ubi.c
  32 @@ -106,6 +106,18 @@ static int env_ubi_save(void)
  33  #endif /* CONFIG_SYS_REDUNDAND_ENVIRONMENT */
  34  #endif /* CONFIG_CMD_SAVEENV */
  35
  36 +int __weak env_ubi_volume_create(const char *volume)
  37 +{
  38 +       struct ubi_volume *vol;
  39 +
  40 +       vol = ubi_find_volume((char *)volume);
  41 +       if (vol)
  42 +               return 0;
  43 +
  44 +       return ubi_create_vol((char *)volume, CONFIG_ENV_SIZE, true,
  45 +                             UBI_VOL_NUM_AUTO, false);
  46 +}
  47 +
  48  #ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
  49  static int env_ubi_load(void)
  50  {
  51 @@ -135,6 +147,11 @@ static int env_ubi_load(void)
  52                 return -EIO;
  53         }
  54
  55 +       if (IS_ENABLED(CONFIG_ENV_UBI_VOLUME_CREATE)) {
  56 +               env_ubi_volume_create(CONFIG_ENV_UBI_VOLUME);
  57 +               env_ubi_volume_create(CONFIG_ENV_UBI_VOLUME_REDUND);
  58 +       }
  59 +
  60         read1_fail = ubi_volume_read(CONFIG_ENV_UBI_VOLUME, (void *)tmp_env1,
  61                                      CONFIG_ENV_SIZE);
  62         if (read1_fail)
  63 @@ -172,6 +189,9 @@ static int env_ubi_load(void)
  64                 return -EIO;
  65         }
  66
  67 +       if (IS_ENABLED(CONFIG_ENV_UBI_VOLUME_CREATE))
  68 +               env_ubi_volume_create(CONFIG_ENV_UBI_VOLUME);
  69 +
  70         if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME, buf, CONFIG_ENV_SIZE)) {
  71                 printf("\n** Unable to read env from %s:%s **\n",
  72                        CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME);