82 lines
3.3 KiB
Diff
82 lines
3.3 KiB
Diff
From: Grische <github@grische.xyz>
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Date: Sun, 18 Sep 2022 14:03:16 +0200
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Subject: xrx200: migrate fritz7360-v2 using incorrect image
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Migrate AVM FRITZ!Box 7360 v2 boards flashed with the incorrect v1 image to use
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the newly added v2 target image during the next upgrade.
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Using the v2 target image allows the boards to read the TFFS partition, which
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is misaligned when using the v1 image.
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Ref: https://github.com/freifunk-gluon/gluon/pull/2648
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Co-authored-by: Jan-Niklas Burfeind <git@aiyionpri.me>
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diff --git a/target/linux/lantiq/xrx200/base-files/lib/preinit/01_sysinfo.sh b/target/linux/lantiq/xrx200/base-files/lib/preinit/01_sysinfo.sh
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new file mode 100644
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index 0000000000000000000000000000000000000000..fab50d708e872f819c643cea79327e4f438de524
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--- /dev/null
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+++ b/target/linux/lantiq/xrx200/base-files/lib/preinit/01_sysinfo.sh
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@@ -0,0 +1,62 @@
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+set_sysinfo_xrx200_for_fritz7360_model() {
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+ local board_name=$1
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+ local model
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+ local urlader_version urlader_memsize urlader_flashsize
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+ local hexdump_format='4/1 "%02x""\n"'
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+
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+ # Values are based on urlader-parser-py
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+ # https://github.com/grische/urlader-parser-py/blob/42970bf8dec7962317df4ff734c57ebf36df8905/parser.py#L77-L84
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+ urlader_version="$(dd if=/dev/mtd0ro bs=1 skip=$((0x580+0x0)) count=4 | hexdump -e "${hexdump_format}")"
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+ if [ "${urlader_version}" != "00000003" ]; then
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+ logger -s -p warn -t sysinfo-xrx200 "unexpected urlader version found: ${urlader_version}"
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+ return
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+ fi
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+
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+ urlader_memsize="$(dd if=/dev/mtd0ro bs=1 skip=$((0x580+0x4)) count=4 | hexdump -e "${hexdump_format}")"
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+ if [ "${urlader_memsize}" != "08000000" ]; then
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+ logger -s -p warn -t sysinfo-xrx200 "unexpected memsize found: ${urlader_memsize}"
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+ return
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+ fi
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+
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+ urlader_flashsize="$(dd if=/dev/mtd0ro bs=1 skip=$((0x580+0x8)) count=4 | hexdump -e "${hexdump_format}")"
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+ case "${urlader_flashsize}" in
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+ "02000000") # 32MB
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+ # see vr9_avm_fritz7360-v2.dts
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+ board_name="avm,fritz7360-v2"
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+ model="AVM FRITZ!Box 7360 V2"
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+ ;;
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+ "01000000") # 16MB
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+ return
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+ ;;
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+ *)
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+ logger -s -p warn -t sysinfo-xrx200 "unexpected flashsize found: ${urlader_flashsize}"
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+ return
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+ ;;
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+ esac
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+
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+ logger -s -p notice -t sysinfo-xrx200 "detected ${board_name} from urlader partition /dev/mtd0ro. Enforcing model ${model}."
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+ echo "${board_name}" > /tmp/sysinfo/board_name
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+ echo "${model}" > /tmp/sysinfo/model
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+}
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+
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+do_sysinfo_xrx200() {
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+ local reported_board board_name model
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+
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+ [ -d /proc/device-tree ] || return
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+ reported_board="$(strings /proc/device-tree/compatible | head -1)"
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+
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+ mkdir -p /tmp/sysinfo
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+ # 7360 is notoriously known for not writing "v2" on their labels and many
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+ # routers have flashed the wrong firmware with the wrong flash layout.
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+ # We ensure that the underlying hardware is reported correctly, so that
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+ # future upgrades will use the correct flash layout.
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+ # Using 7360v2 hardware, an upgrade from a 7360v1/sl firmware to a 7360v2
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+ # is working.
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+ case "${reported_board}" in
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+ avm,fritz7360sl)
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+ set_sysinfo_xrx200_for_fritz7360_model "${reported_board}"
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+ ;;
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+ esac
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+}
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+
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+boot_hook_add preinit_main do_sysinfo_xrx200
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