ar71xx: nbg6716: extract ath10k wifi board.bin

With help of this script the ath10k board.bin settings are loaded from
flash and saved to the ath10k firmware directory. The driver reads it
later in the boot process.

Signed-off-by: André Valentin <avalentin@marcant.net>

SVN-Revision: 41562

target/linux/ar71xx/base-files/lib/preinit/81_load_ath10k_board_bin

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+. /lib/ar71xx.sh
+
+do_load_ath10k_board_bin() {
+	# load board.bin
+	case $(ar71xx_board_name) in
+		nbg6716)
+			dd if=/dev/mtdblock2 \
+				bs=1 skip=20480 count=2116 \
+				of=/tmp/ath10k-board.bin
+		;;
+	esac
+	[ -f /tmp/ath10k-board.bin ] || {
+		return
+	}
+	cmp -s /tmp/ath10k-board.bin /lib/firmware/ath10k/QCA988X/hw2.0/board.bin || {
+		cp /tmp/ath10k-board.bin /lib/firmware/ath10k/QCA988X/hw2.0/board.bin
+		rm /tmp/ath10k-board.bin
+	}
+}
+
+boot_hook_add preinit_main do_load_ath10k_board_bin