[openwrt/openwrt] ipq40xx: fix sysupgrade image for Netgear LBR20

[LEDE Commits]

robimarko pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/89f3c51e88bf50dc67ab296042cae7cb5f5831f4

commit 89f3c51e88bf50dc67ab296042cae7cb5f5831f4
Author: Christoph Krapp <achterin at gmail.com>
AuthorDate: Sun Oct 26 21:41:39 2025 +0100

    ipq40xx: fix sysupgrade image for Netgear LBR20
    
    This fixes the sysupgrade image generation for the LBR20 as before
    updating resulted in a brick which needed to be recovered using
    nmrpflash.
    
    UART log of a bricked unit:
    Loading DNI firmware for checking...
    Loading firmware 1 ...
    
    NAND read: device 0 offset 0xa600000, size 0x20000
     131072 bytes read: OK
    
    NAND read: device 0 offset 0xa600000, size 0x380000
     3670016 bytes read: OK
    rootfs imge header corrupted !
    Loading firmware 2 ...
    
    NAND read: device 0 offset 0xa600000, size 0x20000
     131072 bytes read: OK
    
    NAND read: device 0 offset 0xa600000, size 0x380000
     3670016 bytes read: OK
    rootfs imge header corrupted !
    
    Comparing the partition contents of a bricked and a working unit showed
    that on the bricked one the fake uImage header was missing. The UBI
    partition also showed significant changes. Both are fixed when the
    base DniImage receipt is used.
    
    Signed-off-by: Christoph Krapp <achterin at gmail.com>
    Link: https://github.com/openwrt/openwrt/pull/20558
    Signed-off-by: Robert Marko <robimarko at gmail.com>
---
 target/linux/ipq40xx/image/generic.mk | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/target/linux/ipq40xx/image/generic.mk b/target/linux/ipq40xx/image/generic.mk
index eeab128008..ca4107127f 100644
--- a/target/linux/ipq40xx/image/generic.mk
+++ b/target/linux/ipq40xx/image/generic.mk
@@ -882,7 +882,9 @@ define Device/netgear_orbi
 endef
 
 define Device/netgear_lbr20
-	$(call Device/netgear_orbi)
+	$(call Device/DniImage)
+	SOC := qcom-ipq4019
+	DEVICE_VENDOR := NETGEAR
 	DEVICE_MODEL := LBR20
 	NETGEAR_BOARD_ID := LBR20
 	NETGEAR_HW_ID := 29766182+0+256+512+2x2+2x2+2x2+1