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>
---
Index:
trunk/target/linux/lantiq/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
===================================================================
---
trunk/target/linux/lantiq/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
(revision 39356)
+++
trunk/target/linux/lantiq/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
(working copy)
@@ -10,6 +10,7 @@
local part=$1
local offset=$2
local count=$3
+ local swab=$4
local mtd
. /lib/functions.sh
@@ -17,9 +18,13 @@
mtd=$(find_mtd_part $part)
[ -n "$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
@@ -29,9 +34,12 @@
"RT2860.eeprom" )
local board=$(lantiq_board_id)
case $board in
- ARV7510PW22|ARV7525PW|ARV752DPW|ARV752DPW22)
- rt2x00_eeprom_extract "board_config" 1040 512
+ ARV7510PW22|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"
;;
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