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| author | John Crispin <john@openwrt.org> | 2014-03-30 09:16:52 +0000 |
|---|---|---|
| committer | John Crispin <john@openwrt.org> | 2014-03-30 09:16:52 +0000 |
| commit | 42e8cb6388a7f9bfd8ff820a5af9193e8fb67fa8 (patch) | |
| tree | fa57ef5fc6bca28bd0487ffadbc635f4712dd3b3 | |
| parent | 1966d4942c2d91b225ddb820e6be01b9b1dc9652 (diff) | |
| download | mtk-20170518-42e8cb6388a7f9bfd8ff820a5af9193e8fb67fa8.zip mtk-20170518-42e8cb6388a7f9bfd8ff820a5af9193e8fb67fa8.tar.gz mtk-20170518-42e8cb6388a7f9bfd8ff820a5af9193e8fb67fa8.tar.bz2 | |
lantiq: do an endianness swap to the RT2860 eeprom for ARV752DPW(22)
ARV7510PW22, ARV752DPW and ARV752DPW22 have the RT2860 eeprom stored in
flash as big-endian, but the driver needs it in little-endian format. We
have to swab it before handing it over. This requires my earlier patch
for busybox.
Funnily enough, ARV752DPW works also with the incorrect eeprom, but
undoubtedly unoptimally. I have a hunch that also the final remaining
Lantiq board would require this swabbing, but I'm not sure, so I just
swab it in the three boards that I know about.
v2:
* Swab also on ARV7510PW22 based on feedback from Alvaro Rojas
* Fix the offset with bs=2
Signed-off-by: Matti Laakso <malaakso at elisanet.fi>
SVN-Revision: 40328
| -rw-r--r-- | target/linux/lantiq/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/target/linux/lantiq/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom b/target/linux/lantiq/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom index a849584..427c5fc 100644 --- a/target/linux/lantiq/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom +++ b/target/linux/lantiq/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom @@ -10,6 +10,7 @@ rt2x00_eeprom_extract() { local part=$1 local offset=$2 local count=$3 + local swab=$4 local mtd . /lib/functions.sh @@ -18,8 +19,13 @@ rt2x00_eeprom_extract() { [ -n "$mtd" ] || \ rt2x00_eeprom_die "no mtd device found for partition $part" - dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count || \ - rt2x00_eeprom_die "failed to extract from $mtd" + if [ $swab -gt 0 ]; then + dd if=$mtd of=/lib/firmware/$FIRMWARE bs=2 skip=$offset count=$count conv=swab || \ + rt2x00_eeprom_die "failed to extract from $mtd" + else + dd if=$mtd of=/lib/firmware/$FIRMWARE bs=1 skip=$offset count=$count || \ + rt2x00_eeprom_die "failed to extract from $mtd" + fi } [ -e /lib/firmware/$FIRMWARE ] && exit 0 @@ -29,8 +35,11 @@ case "$FIRMWARE" in "RT2860.eeprom" ) local board=$(lantiq_board_id) case $board in - ARV7510PW22|ARV7519PW|ARV7525PW|ARV752DPW|ARV752DPW22) - rt2x00_eeprom_extract "board_config" 1040 512 + ARV7510PW22|ARV7519PW|ARV752DPW|ARV752DPW22) + rt2x00_eeprom_extract "board_config" 520 256 1 + ;; + ARV7525PW) + rt2x00_eeprom_extract "board_config" 1040 512 0 ;; *) rt2x00_eeprom_die "board $board is not supported yet" |