[ramips] Add Netgear WNCE2001 (OF version)

Add Netgear WNCE2001.

This is a small RT3052 device with 4MB spi flash and 32MB ram.
2 built-in antennas, 1x fastE, no USB, reset & wps switch.
On my model the AP/RT switch is unpopulated, but I verified the gpio
mapping for it.
The stock firmware is running an unprotected tftpd which allows you
to read any file from the filesystem.
Serial port is present on testpads (See image on the wiki page).
There are more testpads below the shield near the SoC, which
may have JTAG.

Slight annoyance: The bootloader is checksumming kernel&rootfs, but
can be tricked by zeroing checksum and length fields in the checksum
partition, see
target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming

The manufacturer image is very similar to the DAP one, so I slightly
modified mkdapimg to support generating it.

The resulting
openwrt-ramips-rt305x-wnce2001-squashfs-factory-(worldwide|northamerica).bin
can be used to flash from stock to OpenWRT using the stock firmware
upgrade function, without using the serial port.

http://www.netgear.com/landing/wnce2001.aspx
http://wiki.openwrt.org/toh/netgear/wnce2001

Signed-off-by: Tobias Diedrich <ranma+openwrt@tdiedrich.de>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36289 3c298f89-4303-0410-b956-a3cf2f4a3e73

10 files changed, 214 insertions, 2 deletions

diff --git a/target/linux/ramips/base-files/etc/diag.sh b/target/linux/ramips/base-files/etc/diag.sh
index 866003c28c..fe925c0f04 100755
--- a/target/linux/ramips/base-files/etc/diag.sh
+++ b/target/linux/ramips/base-files/etc/diag.sh
@@ -111,6 +111,9 @@ get_status_led() {
 	wr512-3gn)
 		status_led="wr512:green:wps"
 		;;
+	wnce2001)
+		status_led="netgear:green:power"
+		;;
 	mzk-w300nh2)
 		status_led="mzkw300nh2:green:power"
 		;;
diff --git a/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom b/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
index b6490b5b58..5915a02ef7 100644
--- a/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
+++ b/target/linux/ramips/base-files/etc/hotplug.d/firmware/10-rt2x00-eeprom
@@ -93,6 +93,7 @@ case "$FIRMWARE" in
 	wl-330n3g | \
 	wl-351 | \
 	wli-tx4-ag300n | \
+	wnce2001 | \
 	wr512-3gn | \
 	wr6202 | \
 	mzk-w300nh2 | \
diff --git a/target/linux/ramips/base-files/etc/uci-defaults/01_leds b/target/linux/ramips/base-files/etc/uci-defaults/01_leds
index bb8a5dcbd0..cd17d7fa38 100755
--- a/target/linux/ramips/base-files/etc/uci-defaults/01_leds
+++ b/target/linux/ramips/base-files/etc/uci-defaults/01_leds
@@ -112,6 +112,9 @@ case $board in
 	wcr-150gn)
 		set_usb_led "wcr150gn:amber:user"
 		;;
+	wnce2001)
+		set_wifi_led "netgear:green:wlan"
+		;;
 esac
 
 ucidef_commit_leds
diff --git a/target/linux/ramips/base-files/etc/uci-defaults/02_network b/target/linux/ramips/base-files/etc/uci-defaults/02_network
index 9c1936e571..e28f2b5469 100755
--- a/target/linux/ramips/base-files/etc/uci-defaults/02_network
+++ b/target/linux/ramips/base-files/etc/uci-defaults/02_network
@@ -41,7 +41,8 @@ ramips_setup_interfaces()
 	w150m | \
 	all0256n | \
 	all5002 | \
-	broadway)
+	broadway | \
+	wnce2001)
 		ucidef_add_switch "switch0" "1" "0"
 		ucidef_set_interface_lan "eth0"
 		;;
@@ -242,7 +243,8 @@ ramips_setup_macs()
 
 	all0239-3g | \
 	carambola | \
-	w502u)
+	w502u | \
+	wnce2001)
 		lan_mac=$(mtd_get_mac_binary factory 40)
 		wan_mac=$(mtd_get_mac_binary factory 46)
 		;;
diff --git a/target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming b/target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming
new file mode 100644
index 0000000000..67a1746f1d
--- /dev/null
+++ b/target/linux/ramips/base-files/lib/preinit/04_disable_wnce2001_flash_checksumming
@@ -0,0 +1,43 @@
+#!/bin/sh
+
+# Netgear WNCE2001 has does a checksum check on boot and goes into recovery
+# tftp mode when the check fails.  Initializing the JFFS2 partition triggers
+# this, so we make sure to zero checksum and size to be checksummed before
+# that happens, so this needs to run very early during boot.
+
+do_wnce2001_checksumming_disable() {
+	. /lib/ramips.sh
+
+	local board=$(ramips_board_name)
+
+	case "$board" in
+	wnce2001)
+		echo "Board is WNCE2001, updating checksum partition..."
+		local zeroes=/dev/zero
+		local tmpfile=/tmp/wnce2001_checksum
+		local partname=checksum
+		local mtd=$(find_mtd_part $partname)
+		dd if=$mtd of=$tmpfile bs=80 count=1 2>/dev/null
+		signature=$(dd if=$tmpfile bs=1 skip=24 count=20 2>/dev/null)
+		checksum=$(dd if=$tmpfile bs=1 count=4 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"')
+		if [ "$signature" != "RT3052-AP-WNCE2001-3" ]; then
+			echo "Signature of checksum partition is wrong, bailing."
+			return 0
+		fi
+		if [ "$checksum" != "00000000" ]; then
+			echo "Checksum is set, zeroing."
+			# zero out checksum
+			dd if=$zeroes of=$tmpfile conv=notrunc bs=1 seek=0 count=4 2>/dev/null
+			# zero out bytecount to be checksummed
+			dd if=$zeroes of=$tmpfile conv=notrunc bs=1 seek=60 count=4 2>/dev/null
+			mtd write $tmpfile $partname
+		else
+			echo "Checksum is already zero, nothing to do."
+		fi
+	;;
+	esac
+
+	return 0
+}
+
+boot_hook_add preinit_main do_wnce2001_checksumming_disable
diff --git a/target/linux/ramips/base-files/lib/preinit/06_set_iface_mac b/target/linux/ramips/base-files/lib/preinit/06_set_iface_mac
index 7824e2b252..52bf115ccf 100644
--- a/target/linux/ramips/base-files/lib/preinit/06_set_iface_mac
+++ b/target/linux/ramips/base-files/lib/preinit/06_set_iface_mac
@@ -64,6 +64,7 @@ preinit_set_mac_address() {
 	w306r-v20 |\
 	w502u    |\
 	wr6202 |\
+	wnce2001 |\
 	xdxrn502j)
 		mac=$(mtd_get_mac_binary factory 40)
 		ifconfig eth0 hw ether $mac 2>/dev/null
diff --git a/target/linux/ramips/base-files/lib/ramips.sh b/target/linux/ramips/base-files/lib/ramips.sh
index c89dd469a7..37b477a064 100755
--- a/target/linux/ramips/base-files/lib/ramips.sh
+++ b/target/linux/ramips/base-files/lib/ramips.sh
@@ -120,6 +120,9 @@ ramips_board_detect() {
 	*"NBG-419N")
 		name="nbg-419n"
 		;;
+	*"Netgear WNCE2001")
+		name="wnce2001"
+		;;
 	*"NexAira BC2")
 		name="bc2"
 		;;
diff --git a/target/linux/ramips/base-files/lib/upgrade/platform.sh b/target/linux/ramips/base-files/lib/upgrade/platform.sh
index 34d2c54c84..ef150445b0 100755
--- a/target/linux/ramips/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ramips/base-files/lib/upgrade/platform.sh
@@ -59,6 +59,7 @@ platform_check_image() {
 	wl341v3 | \
 	wl-330n | \
 	wl-351 | \
+	wnce2001 | \
 	wli-tx4-ag300n | \
 	whr-g300n |\
 	ur-326n4g |\
diff --git a/target/linux/ramips/dts/WNCE2001.dts b/target/linux/ramips/dts/WNCE2001.dts
new file mode 100644
index 0000000000..1aa1e2cc04
--- /dev/null
+++ b/target/linux/ramips/dts/WNCE2001.dts
@@ -0,0 +1,142 @@
+/dts-v1/;
+
+/include/ "rt3050.dtsi"
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "WNCE2001", "ralink,rt3052-soc";
+	model = "Netgear WNCE2001";
+
+	memorydetect {
+		ralink,memory = <0x0 0x200000 0x4000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	palmbus@10000000 {
+		sysc@0 {
+			ralink,pinmux = "spi", "uartlite", "jtag", "sdram";
+			ralink,gpiomux = "i2c", "mdio", "rgmii";
+			ralink,uartmux = "gpio";
+			ralink,wdtmux = <1>;
+		};
+
+		gpio0: gpio@600 {
+			status = "okay";
+		};
+
+		spi@b00 {
+			status = "okay";
+			m25p80@0 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+				compatible = "mx25l3205d";
+				reg = <0 0>;
+				linux,modalias = "m25p80", "mx25l3205d";
+				spi-max-frequency = <10000000>;
+
+				partition@0 {
+					label = "u-boot";
+					reg = <0x0 0x30000>;
+					read-only;
+				};
+
+				factory: partition@30000 {
+					label = "factory";
+					reg = <0x30000 0x10000>;
+					read-only;
+				};
+
+				partition@40000 {
+					label = "config";
+					reg = <0x40000 0x20000>;
+					read-only;
+				};
+
+				partition@60000 {
+					label = "language";
+					reg = <0x60000 0x30000>;
+					read-only;
+				};
+
+				partition@90000 {
+					label = "pot";
+					reg = <0x90000 0x10000>;
+					read-only;
+				};
+
+				partition@a0000 {
+					label = "checksum";
+					reg = <0xa0000 0x10000>;
+				};
+
+				partition@b0000 {
+					label = "firmware";
+					reg = <0xb0000 0x350000>;
+				};
+			};
+		};
+	};
+
+	ethernet@10100000 {
+		status = "okay";
+	};
+
+	esw@10110000 {
+		status = "okay";
+	};
+
+	wmac@10180000 {
+		status = "okay";
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		power-green {
+			label = "netgear:green:power";
+			gpios = <&gpio0 8 1>;
+		};
+		power-red {
+			label = "netgear:red:power";
+			gpios = <&gpio0 9 1>;
+		};
+		wlan-green {
+			label = "netgear:green:wlan";
+			gpios = <&gpio0 12 0>;
+		};
+		wlan-red {
+			label = "netgear:red:wlan";
+			gpios = <&gpio0 13 0>;
+		};
+	};
+
+	gpio-keys-polled {
+		compatible = "gpio-keys-polled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		poll-interval = <20>;
+		reset {
+			label = "reset";
+			gpios = <&gpio0 10 1>;
+			linux,code = <0x198>;
+		};
+		wps {
+			label = "wps";
+			gpios = <&gpio0 0 1>;
+			linux,code = <0x211>;
+		};
+		rt {
+			label = "rt";
+			gpios = <&gpio0 11 1>;
+			linux,code = <0x100>;
+		};
+		ap {
+			label = "ap";
+			gpios = <&gpio0 7 1>;
+			linux,code = <0x101>;
+		};
+	};
+};
diff --git a/target/linux/ramips/image/Makefile b/target/linux/ramips/image/Makefile
index 0002eb4974..eaa1fcfb94 100644
--- a/target/linux/ramips/image/Makefile
+++ b/target/linux/ramips/image/Makefile
@@ -392,6 +392,18 @@ Image/Build/Profile/WL341V3=$(call BuildFirmware/WL341V3/$(1),$(1))
 
 Image/Build/Profile/WL-351=$(call BuildFirmware/Default4M/$(1),$(1),wl-351,WL-351)
 
+define BuildFirmware/WNCE2001/squashfs
+	$(call BuildFirmware/Default4M/$(1),$(1),$(2),$(3))
+	-mkdapimg -s RT3052-AP-WNCE2001-3 -r WW -v 1.0.0.99 \
+		-i $(call sysupname,$(1),$(2)) \
+		-o $(call imgname,$(1),$(2))-factory-worldwide.bin
+	-mkdapimg -s RT3052-AP-WNCE2001-3 -r NA -v 1.0.0.99 \
+		-i $(call sysupname,$(1),$(2)) \
+		-o $(call imgname,$(1),$(2))-factory-northamerica.bin
+endef
+BuildFirmware/WNCE2001/initramfs=$(call BuildFirmware/OF/initramfs,$(1),$(2),$(3))
+Image/Build/Profile/WNCE2001=$(call BuildFirmware/WNCE2001/$(1),$(1),wnce2001,WNCE2001)
+
 Image/Build/Profile/WR512-3GN=$(call BuildFirmware/DefaultDualSize/$(1),$(1),wr512-3ng,WR512-3GN)
 
 Image/Build/Profile/UR-326N4G=$(call BuildFirmware/Default4M/$(1),$(1),ur-326n4g,UR-326N4G)
@@ -451,6 +463,7 @@ define Image/Build/Profile/Default
 	$(call Image/Build/Profile/WL_330N3G,$(1))
 	$(call Image/Build/Profile/WL341V3,$(1))
 	$(call Image/Build/Profile/WL-351,$(1))
+	$(call Image/Build/Profile/WNCE2001,$(1))
 	$(call Image/Build/Profile/WR512-3GN,$(1))
 	$(call Image/Build/Profile/WR6202,$(1))
 	$(call Image/Build/Profile/XDXRN502J,$(1))