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| author | Daniel Golle <daniel@makrotopia.org> | 2024-08-11 23:45:46 +0100 |
|---|---|---|
| committer | Daniel Golle <daniel@makrotopia.org> | 2024-08-12 11:31:37 +0100 |
| commit | 8cf9a932fa7cebbfad1e9fab0ea633482adb8436 (patch) | |
| tree | b9900e837628fa3d6423006c9fe88304c1fdd275 | |
| parent | 1554af4c4380504eb1b37a100e56ecae749a67d5 (diff) | |
| download | openwrt-8cf9a932fa7cebbfad1e9fab0ea633482adb8436.tar.gz openwrt-8cf9a932fa7cebbfad1e9fab0ea633482adb8436.tar.bz2 openwrt-8cf9a932fa7cebbfad1e9fab0ea633482adb8436.zip | |
mediatek: add script to trigger scrubbing of FIP-in-UBI
Read the 'fip' static volume in order to trigger scrubbing in case of
detecting flipped bits while reading.
We have to do this in Linux because we never read or touch the 'fip'
volume and the UBISPL implementation in ARM TrustedFirmware-A does NOT
handle scrubbing itself.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
| -rw-r--r-- | target/linux/mediatek/base-files/lib/preinit/07_trigger_fip_scrubbing | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/target/linux/mediatek/base-files/lib/preinit/07_trigger_fip_scrubbing b/target/linux/mediatek/base-files/lib/preinit/07_trigger_fip_scrubbing new file mode 100644 index 0000000000..74458e075b --- /dev/null +++ b/target/linux/mediatek/base-files/lib/preinit/07_trigger_fip_scrubbing @@ -0,0 +1,16 @@ +#!/bin/sh + +trigger_fip_scrubbing() { + local vol voltype volname + for vol in /sys/class/ubi/ubi*_*; do + [ -e "$vol" ] || continue + voltype="$(cat "$vol"/type)" + volname="$(cat "$vol"/name)" + if [ "$voltype" = "static" ] && [ "$volname" = "fip" ]; then + cat "/dev/${vol##*/}" > /dev/null + break + fi + done +} + +boot_hook_add preinit_main trigger_fip_scrubbing |