[openwrt/openwrt] ipq806x: fix TP-Link Archer VR2600v bootlooping

[LEDE Commits]

chunkeey pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/621b0589fb5cc1cbab826deb1614009fb60ad995

commit 621b0589fb5cc1cbab826deb1614009fb60ad995
Author: Christian Lamparter <chunkeey at gmail.com>
AuthorDate: Wed Mar 16 17:34:24 2022 +0100

    ipq806x: fix TP-Link Archer VR2600v bootlooping
    
    Timo Schroeder reported:
    "The TP-Link Archer VR2600v is stuck in a boot loop on written
    snapshot image. It's able to boot using the snapshot uimage
    though, but there ath10k firmware can't be found.
    21.02.2 release version doesn't have either problem."
    
    The VR2600v has a 512 byte header at the beginning of the
    firmware that needs to be accounted for.
    
    Fixes: f6a01d7f5c3d ("ipq806x: convert TP-Link Archer VR2600v to denx,uimage")
    Reported-by: Timo Schroeder <der.timosch at gmail.com>
    References: <https://github.com/openwrt/openwrt/issues/9467>
    Signed-off-by: Christian Lamparter <chunkeey at gmail.com>
---
 target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-vr2600v.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-vr2600v.dts b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-vr2600v.dts
index 8fa0a5d291..27d9fc84b3 100644
--- a/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-vr2600v.dts
+++ b/target/linux/ipq806x/files/arch/arm/boot/dts/qcom-ipq8064-vr2600v.dts
@@ -257,7 +257,8 @@
 				partition at 320000 {
 					label = "firmware";
 					reg = <0x320000 0xc60000>;
-					compatible = "denx,uimage";
+					compatible = "openwrt,uimage";
+					openwrt,offset = <512>; /* account for pad-extra 512 */
 				};
 
 				/* hole 0xf80000 - 0xfaf100 */