From e310d5b786eb4c7e461f0aa609b3d3642db95465 Mon Sep 17 00:00:00 2001
From: juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Wed, 7 Dec 2011 06:55:39 +0000
Subject: [PATCH] ar71xx: fix WNDR3x00 model detection
Detect the model name for /tmp/sysinfo/model based on 10 bytes at offset
56 in the art (caldata) mtd partition.
r29434 redid WNDR3x00 model detection, attempting to distinguish between
WNDR3700v2 and WNDR3800 by checking MemTotal in /proc/meminfo. However, it
contained a bug: it put the awk inside a $(...), with the result that all
WNDR3700v2 and WNDR3800 models would be reported as WNDR3800. This patch
checks the model name stored in the art partition, as is done by U-Boot
shipping on the WNDR3800. It has the likely advantage of working with
future models based on the WNDR3700 board. It also will not mis-detect
units on which people install more memory.
I have tested this patch on WNDR3700 (v1), WNDR3700v2, and WNDR3800.
Signed-off-by: Mark Mentovai <mark@moxienet.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29472 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
target/linux/ar71xx/base-files/lib/ar71xx.sh | 31 +++++++++++---------
1 file changed, 17 insertions(+), 14 deletions(-)
diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh b/target/linux/ar71xx/base-files/lib/ar71xx.sh
index fa730107f..bbd84d170 100755
--- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
+++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
@@ -6,18 +6,22 @@
AR71XX_BOARD_NAME=
AR71XX_MODEL=
-ar71xx_get_mem_total() {
- $(awk '/MemTotal:/ {print($2)}' /proc/meminfo)
-}
+ar71xx_get_mtd_offset_size_format() {
+ local mtd="$1"
+ local offset="$2"
+ local size="$3"
+ local format="$4"
+ local dev
-ar71xx_get_mtd_part_magic() {
- local part="$1"
- local mtd
+ dev=$(find_mtd_part $mtd)
+ [ -z "$dev" ] && return
- mtd=$(find_mtd_part $part)
- [ -z "$mtd" ] && return
+ dd if=$dev bs=1 skip=$offset count=$size 2>/dev/null | hexdump -v -e "1/1 \"$format\""
+}
- dd if=$mtd bs=4 count=1 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
+ar71xx_get_mtd_part_magic() {
+ local mtd="$1"
+ ar71xx_get_mtd_offset_size_format "$mtd" 0 4 %02x
}
wndr3700_board_detect() {
@@ -33,13 +37,12 @@ wndr3700_board_detect() {
machine="NETGEAR WNDR3700"
;;
"33373031")
- local mt
-
- mt=$(ar71xx_get_mem_total)
- if [ "$mt" -lt "65536" ]; then
+ local model
+ model=$(ar71xx_get_mtd_offset_size_format art 56 10 %c)
+ if [ -z "$model" ] || [ "$model" = $'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff' ]; then
machine="NETGEAR WNDR3700v2"
else
- machine="NETGEAR WNDR3800"
+ machine="NETGEAR $model"
fi
;;
esac
--
2.20.1