From: Daniel Golle <daniel@makrotopia.org>
Date: Sun, 28 Aug 2022 19:20:31 +0000 (+0100)
Subject: uboot-mediatek: fix factory reset on UBI
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=8ff8a4dc9efba78966c9d2f1ace2b38e1bf28779;p=openwrt%2Fstaging%2Fblocktrron.git

uboot-mediatek: fix factory reset on UBI

Truncating a UBI volume using `ubi write 0x0 volname 0x0` results in
segfault on newer U-Boot. Write 1MB of 0s instead.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit d118cbdfece181994a96d1bcb1868bd807d481bf)
---

diff --git a/package/boot/uboot-mediatek/patches/404-add-bananapi_bpi-r64_defconfigs.patch b/package/boot/uboot-mediatek/patches/404-add-bananapi_bpi-r64_defconfigs.patch
index 5ce3a7cd2a..de37764b68 100644
--- a/package/boot/uboot-mediatek/patches/404-add-bananapi_bpi-r64_defconfigs.patch
+++ b/package/boot/uboot-mediatek/patches/404-add-bananapi_bpi-r64_defconfigs.patch
@@ -643,7 +643,7 @@
 +boot_write_bl2=mtd erase bl2 && mtd write spi-nand0 $loadaddr 0x0 0x20000 && mtd write spi-nand0 $loadaddr 0x20000 0x20000 && mtd write spi-nand0 $loadaddr 0x40000 0x20000 && mtd write spi-nand0 $loadaddr 0x60000 0x20000
 +boot_write_fip=mtd erase fip && mtd write fip $loadaddr
 +check_ubi=ubi part ubi || run ubi_format
-+reset_factory=ubi part ubi ; ubi write 0x0 ubootenv 0x0 ; ubi write 0x0 ubootenv2 0x0 ; ubi remove rootfs_data
++reset_factory=mw $loadaddr 0x0 0x100000 ; ubi part ubi ; ubi write $loadaddr ubootenv 0x100000 ; ubi write $loadaddr ubootenv2 0x100000 ; ubi remove rootfs_data
 +ubi_format=ubi detach ; mtd erase ubi && ubi part ubi ; reset
 +ubi_prepare_rootfs=if ubi check rootfs_data ; then else if env exists rootfs_data_max ; then ubi create rootfs_data $rootfs_data_max dynamic || ubi create rootfs_data - dynamic ; else ubi create rootfs_data - dynamic ; fi ; fi
 +ubi_read_production=ubi read $loadaddr fit && iminfo $loadaddr && run ubi_prepare_rootfs
diff --git a/package/boot/uboot-mediatek/patches/410-add-linksys-e8450.patch b/package/boot/uboot-mediatek/patches/410-add-linksys-e8450.patch
index fde679f386..329b2f3d8b 100644
--- a/package/boot/uboot-mediatek/patches/410-add-linksys-e8450.patch
+++ b/package/boot/uboot-mediatek/patches/410-add-linksys-e8450.patch
@@ -392,7 +392,7 @@
 +boot_write_bl2=mtd erase bl2 && mtd write spi-nand0 $loadaddr 0x0 0x20000 && mtd write spi-nand0 $loadaddr 0x20000 0x20000 && mtd write spi-nand0 $loadaddr 0x40000 0x20000 && mtd write spi-nand0 $loadaddr 0x60000 0x20000
 +boot_write_fip=mtd erase fip && mtd write fip $loadaddr
 +check_ubi=ubi part ubi || run ubi_format
-+reset_factory=ubi part ubi ; ubi write 0x0 ubootenv 0x0 ; ubi write 0x0 ubootenv2 0x0 ; ubi remove rootfs_data
++reset_factory=mw $loadaddr 0x0 0x100000 ; ubi part ubi ; ubi write $loadaddr ubootenv 0x100000 ; ubi write $loadaddr ubootenv2 0x100000 ; ubi remove rootfs_data
 +ubi_format=ubi detach ; mtd erase ubi && ubi part ubi ; reset
 +ubi_prepare_rootfs=if ubi check rootfs_data ; then else if env exists rootfs_data_max ; then ubi create rootfs_data $rootfs_data_max dynamic || ubi create rootfs_data - dynamic ; else ubi create rootfs_data - dynamic ; fi ; fi
 +ubi_read_production=ubi read $loadaddr fit && iminfo $loadaddr && run ubi_prepare_rootfs