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domenico
2025-06-24 14:35:53 +02:00
commit c06fb25d1f
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67
package/boot/uboot-mediatek/patches/311-mt7986-select-rootdisk.patch Normal file
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@@ -0,0 +1,67 @@
--- a/board/mediatek/mt7986/mt7986_rfb.c
+++ b/board/mediatek/mt7986/mt7986_rfb.c
@@ -10,7 +10,9 @@
#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
#define CONFIG_RESET_BUTTON_LABEL "reset"
@@ -82,3 +84,54 @@ int board_nmbm_init(void)
return 0;
}
+
+#define MT7986_BOOT_NOR 0
+#define MT7986_BOOT_SPIM_NAND 1
+#define MT7986_BOOT_EMMC 2
+#define MT7986_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) & 0x300) >> 8) {
+ case MT7986_BOOT_NOR:
+ media = "rootdisk-nor";
+ break
+ ;;
+ case MT7986_BOOT_SPIM_NAND:
+ media = "rootdisk-spim-nand";
+ break
+ ;;
+ case MT7986_BOOT_EMMC:
+ media = "rootdisk-emmc";
+ break
+ ;;
+ case MT7986_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;
+}