package/boot/uboot-mediatek/patches/008-board-mediatek-fix-mmc_get_boot_dev-for-platforms-wi.patch

   1 From b0d1b85fb25a28a9532eaa9dda064b40a0e25f25 Mon Sep 17 00:00:00 2001
   2 From: David Woodhouse <dwmw2@infradead.org>
   3 Date: Sun, 12 Jul 2020 23:19:09 +0100
   4 Subject: [PATCH 1/3] board: mediatek: fix mmc_get_boot_dev() for platforms
   5  without external SD
   6
   7 On the UniElec U7623 board there is no external SD slot and the preloader
   8 doesn't fill in the magic field at 0x81dffff0 to indicate that it was
   9 booted from eMMC.
  10
  11 Signed-off-by: David Woodhouse <dwmw2@infradead.org>
  12 ---
  13  board/mediatek/mt7623/mt7623_rfb.c | 7 +++++++
  14  1 file changed, 7 insertions(+)
  15
  16 diff --git a/board/mediatek/mt7623/mt7623_rfb.c b/board/mediatek/mt7623/mt7623_rfb.c
  17 index 4ec2764976..984e75ccaf 100644
  18 --- a/board/mediatek/mt7623/mt7623_rfb.c
  19 +++ b/board/mediatek/mt7623/mt7623_rfb.c
  20 @@ -4,6 +4,7 @@
  21   */
  22
  23  #include <common.h>
  24 +#include <mmc.h>
  25
  26  DECLARE_GLOBAL_DATA_PTR;
  27
  28 @@ -15,10 +16,15 @@ int board_init(void)
  29         return 0;
  30  }
  31
  32 +#ifdef CONFIG_MMC
  33  int mmc_get_boot_dev(void)
  34  {
  35         int g_mmc_devid = -1;
  36         char *uflag = (char *)0x81DFFFF0;
  37 +
  38 +       if (!find_mmc_device(1))
  39 +               return 0;
  40 +
  41         if (strncmp(uflag,"eMMC",4)==0) {
  42                 g_mmc_devid = 0;
  43                 printf("Boot From Emmc(id:%d)\n\n", g_mmc_devid);
  44 @@ -33,3 +39,4 @@ int mmc_get_env_dev(void)
  45  {
  46         return mmc_get_boot_dev();
  47  }
  48 +#endif
  49 --
  50 2.26.2
  51