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uboot-mediatek: mt7988: set rootdisk according to boot device

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If nodes /chosen/rootdisk-${bootdevice} exists, set /chosen/rootdisk
phandle according to boot device selected by the bootstrap pins.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2023-12-05 04:10:31 +00:00
parent 89fcf211cb
commit b165d451bd
1 changed files with 66 additions and 0 deletions
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66
package/boot/uboot-mediatek/patches/310-mt7988-select-rootdisk.patch Normal file
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@ -0,0 +1,66 @@
--- a/board/mediatek/mt7988/mt7988_rfb.c
+++ b/board/mediatek/mt7988/mt7988_rfb.c
@@ -11,6 +11,8 @@
#include <env.h>
#include <init.h>
#include <asm/global_data.h>
+#include <asm/io.h>
#include <linux/delay.h>
+#include <linux/libfdt.h>
#ifndef CONFIG_RESET_BUTTON_LABEL
@@ -44,3 +50,54 @@ int board_late_init(void)
env_relocate();
return 0;
}
+
+#define MT7988_BOOT_NOR 0
+#define MT7988_BOOT_SPIM_NAND 1
+#define MT7988_BOOT_EMMC 2
+#define MT7988_BOOT_SNFI_NAND 3
+
+int ft_system_setup(void *blob, struct bd_info *bd)
+{
+ const u32 *media_handle_p;
+ int chosen, len, ret;
+ const char *media;
+ u32 media_handle;
+
+ switch ((readl(0x1001f6f0) & 0xc00) >> 10) {
+ case MT7988_BOOT_NOR:
+ media = "rootdisk-nor";
+ break
+ ;;
+ case MT7988_BOOT_SPIM_NAND:
+ media = "rootdisk-spim-nand";
+ break
+ ;;
+ case MT7988_BOOT_EMMC:
+ media = "rootdisk-emmc";
+ break
+ ;;
+ case MT7988_BOOT_SNFI_NAND:
+ media = "rootdisk-sd";
+ break
+ ;;
+ }
+
+ chosen = fdt_path_offset(blob, "/chosen");
+ if (chosen <= 0)
+ return 0;
+
+ media_handle_p = fdt_getprop(blob, chosen, media, &len);
+ if (media_handle_p <= 0 || len != 4)
+ return 0;
+
+ media_handle = *media_handle_p;
+ ret = fdt_setprop(blob, chosen, "rootdisk", &media_handle, sizeof(media_handle));
+ if (ret) {
+ printf("cannot set media phandle %s as rootdisk /chosen node\n", media);
+ return ret;
+ }
+
+ printf("set /chosen/rootdisk to bootrom media: %s (phandle 0x%08x)\n", media, fdt32_to_cpu(media_handle));
+
+ return 0;
+}