From: David Bauer <mail@david-bauer.net>
Date: Sun, 6 Nov 2022 23:42:57 +0000 (+0100)
Subject: ramips: define loadaddr for U6 Lite DTB
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=10ba380ec3a9d0462026120ecd5f5f4fa61b5d21;p=openwrt%2Fstaging%2Fnoltari.git

ramips: define loadaddr for U6 Lite DTB

The Ubiquiti UniFi 6 Lite does not correctly align the FDT by always
setting fdt_high to 0xffffffff when invoking the bootubnt command.

Work around this issue by loading the DTB to a valid,aligned address, so
the bootloader does not have to relocate the FDT automatically.

Note: The device does read the kernel before invoking bootm on the FIT
image to 0x86000000.

Signed-off-by: David Bauer <mail@david-bauer.net>
---

diff --git a/target/linux/ramips/image/mt7621.mk b/target/linux/ramips/image/mt7621.mk
index 35817d0317..222809dbbe 100644
--- a/target/linux/ramips/image/mt7621.mk
+++ b/target/linux/ramips/image/mt7621.mk
@@ -2016,6 +2016,7 @@ define Device/ubnt_unifi-6-lite
   DEVICE_VENDOR := Ubiquiti
   DEVICE_MODEL := UniFi 6 Lite
   DEVICE_DTS_CONFIG := config@1
+  DEVICE_DTS_LOADADDR := 0x87000000
   DEVICE_PACKAGES += kmod-mt7603 kmod-mt7915e
   KERNEL := kernel-bin | lzma | fit lzma $$(KDIR)/image-$$(firstword $$(DEVICE_DTS)).dtb
   IMAGE_SIZE := 15424k