ramips: rt305x: add support for the Asus WL-330N3G board

This patch adds support for the ASUS WL-330N3G

Comparing to the WL-330N, It have 32MB ram, usb support and a bicolor led.

The bi-color led is driven by 2 gpio.
I don't know how to handle this, so I simply made 2 leds : one red, one blue.
But the red light takes precedence over the blue one according to the chart below.

r = led is red
b = led is blue
0 = led is off

xy= x->r for red, b for blue led, y->value of brightness in /sys/class/leds/x/brughtness

initial state	action	 led	gpio state

r0	b0	r0->r1	 r  	r0	b0
r0	b0	b0->b1   b	r0	b1

r1	b0	r1->r0	 0	r0	b0
r1	b0	b0->b1	 r	r1	*b1*

r1	b1	r1->r0   b	r0	b1
r1	b1	b1->b0   r	r1	b0

r0	b1	r0->r1   r	r1	*b1*
r0	b1	b1->b0   0	r0	r0

Signed-off-by: Frédéric Leroy <fredo@starox.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31450 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 106 insertions, 0 deletions

diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/Kconfig b/target/linux/ramips/files/arch/mips/ralink/rt305x/Kconfig
index b9850a651..d8370ce4d 100644
--- a/target/linux/ramips/files/arch/mips/ralink/rt305x/Kconfig
+++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/Kconfig
@@ -36,6 +36,11 @@ config RT305X_MACH_WL_330N
 	select RALINK_DEV_GPIO_BUTTONS
 	select RALINK_DEV_GPIO_LEDS
 
+config RT305X_MACH_WL_330N3G
+	bool "Asus WL-330N3G board support"
+	select RALINK_DEV_GPIO_BUTTONS
+	select RALINK_DEV_GPIO_LEDS
+
 config RT305X_MACH_HW550_3G
 	bool "Aztech HW550-3G support"
 	select RALINK_DEV_GPIO_BUTTONS
diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile b/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile
index f5c6aa8df..66940cfa0 100644
--- a/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile
+++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_RT305X_MACH_WCR150GN)	+= mach-wcr150gn.o
 obj-$(CONFIG_RT305X_MACH_WHR_G300N)	+= mach-whr-g300n.o
 obj-$(CONFIG_RT305X_MACH_WR512_3GN)	+= mach-wr512-3gn.o
 obj-$(CONFIG_RT305X_MACH_WL_330N)	+= mach-wl-330n.o
+obj-$(CONFIG_RT305X_MACH_WL_330N3G)	+= mach-wl-330n3g.o
 obj-$(CONFIG_RT305X_MACH_WL341V3)	+= mach-wl341v3.o
 obj-$(CONFIG_RT305X_MACH_WL351)		+= mach-wl351.o
 obj-$(CONFIG_RT305X_MACH_WR6202)	+= mach-wr6202.o
diff --git a/target/linux/ramips/files/arch/mips/ralink/rt305x/mach-wl-330n3g.c b/target/linux/ramips/files/arch/mips/ralink/rt305x/mach-wl-330n3g.c
new file mode 100644
index 000000000..599b9a9ad
--- /dev/null
+++ b/target/linux/ramips/files/arch/mips/ralink/rt305x/mach-wl-330n3g.c
@@ -0,0 +1,100 @@
+/*
+ *  Asus WL_330N3G board support
+ *
+ *  Copyright (C) 2012 Frederic Leroy <fredo@starox.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+
+#include <asm/mach-ralink/machine.h>
+#include <asm/mach-ralink/dev-gpio-buttons.h>
+#include <asm/mach-ralink/dev-gpio-leds.h>
+#include <asm/mach-ralink/rt305x.h>
+#include <asm/mach-ralink/rt305x_regs.h>
+
+#include "devices.h"
+
+#define WL_330N3G_GPIO_BUTTON_RESET	10
+#define WL_330N3G_GPIO_BUTTON_WPS	0
+#define WL_330N3G_GPIO_LED_3G_BLUE	9
+#define WL_330N3G_GPIO_LED_3G_RED	13
+#define WL_330N3G_GPIO_LED_POWER	11
+#define WL_330N3G_KEYS_POLL_INTERVAL	20
+#define WL_330N3G_KEYS_DEBOUNCE_INTERVAL (3 * WL_330N3G_KEYS_POLL_INTERVAL)
+
+const struct flash_platform_data wl_330n3g_flash = {
+	.type		= "mx25l3205d",
+};
+
+struct spi_board_info wl_330n3g_spi_slave_info[] __initdata = {
+	{
+		.modalias	= "m25p80",
+		.platform_data	= &wl_330n3g_flash,
+		.irq		= -1,
+		.max_speed_hz	= 10000000,
+		.bus_num	= 0,
+		.chip_select	= 0,
+	},
+};
+
+static struct gpio_keys_button wl_330n3g_gpio_buttons[] __initdata = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = WL_330N3G_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= WL_330N3G_GPIO_BUTTON_RESET,
+		.active_low	= 1,
+	},
+	{
+		.desc		= "wps",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = WL_330N3G_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= WL_330N3G_GPIO_BUTTON_WPS,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_led wl_330n3g_leds_gpio[] __initdata = {
+	{
+		.name		= "asus:blue:3g",
+		.gpio		= WL_330N3G_GPIO_LED_3G_BLUE,
+		.active_low	= 1,
+	}, {
+		.name		= "asus:red:3g",
+		.gpio		= WL_330N3G_GPIO_LED_3G_RED,
+		.active_low	= 1,
+	}, {
+		.name		= "asus:blue:power",
+		.gpio		= WL_330N3G_GPIO_LED_POWER,
+		.active_low	= 1,
+	}
+};
+
+static void __init wl_330n3g_init(void)
+{
+	rt305x_gpio_init(RT305X_GPIO_MODE_GPIO << RT305X_GPIO_MODE_UART0_SHIFT);
+	rt305x_register_spi(wl_330n3g_spi_slave_info,
+			    ARRAY_SIZE(wl_330n3g_spi_slave_info));
+	rt305x_esw_data.vlan_config = RT305X_ESW_VLAN_CONFIG_WLLLL;
+	rt305x_register_ethernet();
+	ramips_register_gpio_leds(-1, ARRAY_SIZE(wl_330n3g_leds_gpio),
+				  wl_330n3g_leds_gpio);
+	ramips_register_gpio_buttons(-1, WL_330N3G_KEYS_POLL_INTERVAL,
+				     ARRAY_SIZE(wl_330n3g_gpio_buttons),
+				     wl_330n3g_gpio_buttons);
+	rt305x_register_wifi();
+	rt305x_register_usb();
+	rt305x_register_wdt();
+}
+
+MIPS_MACHINE(RAMIPS_MACH_WL_330N3G, "WL_330N3G", "Asus WL-330N3G",
+	     wl_330n3g_init);