add nvram fixup script

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@7742 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 70 insertions, 0 deletions

diff --git a/package/nvram/files/nvram.init b/package/nvram/files/nvram.init
new file mode 100755
index 0000000000..164fdb5f95
--- /dev/null
+++ b/package/nvram/files/nvram.init
@@ -0,0 +1,70 @@
+#!/bin/sh /etc/rc.common
+# NVRAM setup
+#
+# This file handles the NVRAM quirks of various hardware.
+
+START=02
+alias debug=${DEBUG:-:}
+
+nvram_default() {
+	[ -z "$(nvram get $1)" ] && nvram set "$1=$2"
+}
+
+nvram_set() { # for the linksys fixup part
+	[ "$(nvram get "$1")" = "$2" -a "$2" != "" ] || {
+		COMMIT=1
+		/usr/sbin/nvram set "$1=$2"
+	}
+}
+
+fixup_linksys() {
+	# work around braindead CFE defaults in linksys routers
+	boardtype=$(nvram get boardtype)
+	boardnum=$(nvram get boardnum)
+	boardflags=$(($(nvram get boardflags)))
+	adm_switch="$(( ($boardflags & 0x80) >> 7 ))"
+
+	[ -n "$(nvram get vxkilled)" ] && boardtype=0 # don't mess with the ram settings on the hacked cfe
+	case "$(( $boardtype ))" in
+		"1800") #0x708
+			if [ "$adm_switch" = 0 ]; then
+				nvram_set sdram_init "$(printf 0x%04x $(( $(/usr/sbin/nvram get sdram_init) | 0x0100 )))"
+				[ "$COMMIT" = 1 ] && {
+					nvram_set clkfreq 216
+					nvram_set sdram_ncdl 0x0
+					nvram_set pa0itssit 62
+					nvram_set pa0b0 0x15eb
+					nvram_set pa0b1 0xfa82
+					nvram_set pa0b2 0xfe66
+					nvram_set pa0maxpwr 0x4e
+				}
+			fi
+		;;
+		"1127") #0x467
+			nvram_set sdram_init "$(printf 0x%04x $(( $(/usr/sbin/nvram get sdram_init) | 0x0100 )))"
+			[ "$COMMIT" = 1 ] && {
+				nvram_set sdram_ncdl 0x0
+				nvram_set pa0itssit 62
+				nvram_set pa0b0 0x168b
+				nvram_set pa0b1 0xfabf
+				nvram_set pa0b2 0xfeaf
+				nvram_set pa0maxpwr 0x4e
+			}
+		;;
+	esac
+	[ "$COMMIT" = "1" ] && nvram commit
+}
+
+start() {
+	fixup_linksys
+
+	# OFDM Power Offset is set incorrectly on many boards.
+	# Setting it to 0 will increase the tx power to normal levels.
+	nvram_set opo 0x0
+
+	[ "$(nvram get il0macaddr)" = "00:90:4c:5f:00:2a" ] && {
+		# if default wifi mac, set two higher than the lan mac
+		nvram set il0macaddr=$(nvram get et0macaddr|
+		awk '{OFS=FS=":";for(x=7,y=2;--x;){$x=sprintf("%02x",(y+="0x"$x)%256);y/=256}print}')
+	}
+}