bcm63xx: Add a fixup for rt2x00 devices.

This patch adds support for defining rt2x00 eeprom data.
This eeprom data can be extracted from flash or loaded directly from a firmware file.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34322 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/brcm63xx/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
+
+. /lib/brcm63xx.sh
+
+board=$board_name
+
+case "$FIRMWARE" in
+"RT3062.eeprom" )
+	case $board in
+	*)
+		rt2x00_eeprom_die "board $board is not supported yet"
+		;;
+	esac
+	;;
+esac