From 9df731a176aab8e03b984b681b1bea01ccff6644 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 06 Nov 2023 07:23:06 +0000
Subject: [PATCH] rk3568 rt uboot init
---
u-boot/common/android_ab.c | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 files changed, 55 insertions(+), 1 deletions(-)
diff --git a/u-boot/common/android_ab.c b/u-boot/common/android_ab.c
index 2182d3d..5655274 100644
--- a/u-boot/common/android_ab.c
+++ b/u-boot/common/android_ab.c
@@ -406,7 +406,7 @@
return 0;
}
-void ab_update_root_uuid(void)
+static void ab_update_root_uuid(void)
{
/*
* In android a/b & avb process, the system.img is mandory and the
@@ -441,6 +441,60 @@
}
}
+void ab_update_root_partition(void)
+{
+ char *boot_args = env_get("bootargs");
+ char root_part_dev[64] = {0};
+ disk_partition_t part_info;
+ struct blk_desc *dev_desc;
+ const char *part_type;
+ int part_num;
+
+ dev_desc = rockchip_get_bootdev();
+ if (!dev_desc)
+ return;
+
+ if (ab_is_support_dynamic_partition(dev_desc))
+ return;
+
+ /* Get 'system' partition device number. */
+ part_num = part_get_info_by_name(dev_desc, ANDROID_PARTITION_SYSTEM, &part_info);
+ if (part_num < 0) {
+ printf("%s: Failed to get partition '%s'.\n", __func__, ANDROID_PARTITION_SYSTEM);
+ return;
+ }
+
+ /* Get partition type. */
+ part_type = part_get_type(dev_desc);
+ if (!part_type)
+ return;
+
+ /* Judge the partition device type. */
+ switch (dev_desc->if_type) {
+ case IF_TYPE_MMC:
+ if (strstr(part_type, "ENV"))
+ snprintf(root_part_dev, 64, "root=/dev/mmcblk0p%d", part_num);
+ else if (strstr(part_type, "EFI"))
+ ab_update_root_uuid();
+ break;
+ case IF_TYPE_MTD:
+ if (dev_desc->devnum == BLK_MTD_NAND || dev_desc->devnum == BLK_MTD_SPI_NAND) {
+ if (strstr(boot_args, "rootfstype=squashfs") || strstr(boot_args, "rootfstype=erofs"))
+ snprintf(root_part_dev, 64, "ubi.mtd=%d root=/dev/ubiblock0_0", part_num - 1);
+ else if (strstr(boot_args, "rootfstype=ubifs"))
+ snprintf(root_part_dev, 64, "ubi.mtd=%d root=ubi0:system", part_num - 1);
+ } else if (dev_desc->devnum == BLK_MTD_SPI_NOR) {
+ snprintf(root_part_dev, 64, "root=/dev/mtdblock%d", part_num - 1);
+ }
+ break;
+ default:
+ printf("%s: Not found part type, failed to set root part device.\n", __func__);
+ return;
+ }
+
+ env_update("bootargs", root_part_dev);
+}
+
int ab_get_slot_suffix(char *slot_suffix)
{
/* TODO: get from pre-loader or misc partition */
--
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