310-mt7988-select-rootdisk.patch 1.5 KB

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  1. --- a/board/mediatek/mt7988/mt7988_rfb.c
  2. +++ b/board/mediatek/mt7988/mt7988_rfb.c
  3. @@ -11,7 +11,9 @@
  4. #include <env.h>
  5. #include <init.h>
  6. #include <asm/global_data.h>
  7. +#include <asm/io.h>
  8. #include <linux/delay.h>
  9. +#include <linux/libfdt.h>
  10. #ifndef CONFIG_RESET_BUTTON_LABEL
  11. #define CONFIG_RESET_BUTTON_LABEL "reset"
  12. @@ -44,3 +46,54 @@ int board_late_init(void)
  13. env_relocate();
  14. return 0;
  15. }
  16. +
  17. +#define MT7988_BOOT_NOR 0
  18. +#define MT7988_BOOT_SPIM_NAND 1
  19. +#define MT7988_BOOT_EMMC 2
  20. +#define MT7988_BOOT_SNFI_NAND 3
  21. +
  22. +int ft_system_setup(void *blob, struct bd_info *bd)
  23. +{
  24. + const u32 *media_handle_p;
  25. + int chosen, len, ret;
  26. + const char *media;
  27. + u32 media_handle;
  28. +
  29. + switch ((readl(0x1001f6f0) & 0xc00) >> 10) {
  30. + case MT7988_BOOT_NOR:
  31. + media = "rootdisk-nor";
  32. + break
  33. + ;;
  34. + case MT7988_BOOT_SPIM_NAND:
  35. + media = "rootdisk-spim-nand";
  36. + break
  37. + ;;
  38. + case MT7988_BOOT_EMMC:
  39. + media = "rootdisk-emmc";
  40. + break
  41. + ;;
  42. + case MT7988_BOOT_SNFI_NAND:
  43. + media = "rootdisk-sd";
  44. + break
  45. + ;;
  46. + }
  47. +
  48. + chosen = fdt_path_offset(blob, "/chosen");
  49. + if (chosen <= 0)
  50. + return 0;
  51. +
  52. + media_handle_p = fdt_getprop(blob, chosen, media, &len);
  53. + if (media_handle_p <= 0 || len != 4)
  54. + return 0;
  55. +
  56. + media_handle = *media_handle_p;
  57. + ret = fdt_setprop(blob, chosen, "rootdisk", &media_handle, sizeof(media_handle));
  58. + if (ret) {
  59. + printf("cannot set media phandle %s as rootdisk /chosen node\n", media);
  60. + return ret;
  61. + }
  62. +
  63. + printf("set /chosen/rootdisk to bootrom media: %s (phandle 0x%08x)\n", media, fdt32_to_cpu(media_handle));
  64. +
  65. + return 0;
  66. +}