lantiq: adds hotplug handler for loading rt2x00 firmware

SVN-Revision: 29000

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
new file mode 100644 (file)
index 0000000..e2dfc16
--- /dev/null
+++ b/target/linux/lantiq/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
@@ -0,0 +1,39 @@
+#!/bin/sh
+# based on gabors ralink wisoc implementation
+
+rt2x00_eeprom_die() {
+       echo "rt2x00 eeprom: " "$*"
+       exit 1
+}
+
+rt2x00_eeprom_extract() {
+       local part=$1
+       local offset=$2
+       local count=$3
+       local mtd
+
+       . /etc/functions.sh
+
+       mtd=$(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 $mtd"
+}
+
+[ -e /lib/firmware/$FIRMWARE ] && exit 0
+
+case "$FIRMWARE" in
+"RT2860.eeprom" )
+       local board=$(grep ^machine /proc/cpuinfo | sed "s/machine.*: \(.*\) - .*/\1/g")
+       case $board in
+       ARV7525PW)
+               rt2x00_eeprom_extract "board_config" 1040 272
+               ;;
+       *)
+               rt2x00_eeprom_die "board $board is not supported yet"
+               ;;
+       esac
+       ;;
+esac