ramips: add kernel support for the Tenda 3G300M

Ralink RT3052F, 4MB flash, 32MB ram, one USB 2.0, two buttons
and seven leds.

Factory image should be used to flash from original firmware.

Signed-off-by: Cezary Jackiewicz <cezary.jackiewicz@gmail.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 35244

target/linux/ramips/files/arch/mips/include/asm/mach-ralink/machine.h

@@ -37,6 +37,7 @@ enum ramips_mach_type {
 	RAMIPS_MACH_WL_330N3G,		/* Asus WL-330N3G */
 
 	/* RT3052 based machines */
+	RAMIPS_MACH_3G300M,		/* Tenda 3G300M */
 	RAMIPS_MACH_ALL0239_3G,		/* ALL0239-3G */
 	RAMIPS_MACH_ARGUS_ATP52B,	/* Argus ATP-52B */
 	RAMIPS_MACH_BC2,		/* NexAira BC2 */

target/linux/ramips/files/arch/mips/ralink/rt305x/Kconfig

@@ -12,6 +12,11 @@ config RT305X_MACH_3G_6200N
 	select RALINK_DEV_GPIO_BUTTONS
 	select RALINK_DEV_GPIO_LEDS
 
+config RT305X_MACH_3G300M
+	bool "Tenda 3G300M board support"
+	select RALINK_DEV_GPIO_BUTTONS
+	select RALINK_DEV_GPIO_LEDS
+
 config RT305X_MACH_WR6202
 	bool "Accton WR6202"
 	select RALINK_DEV_GPIO_BUTTONS

target/linux/ramips/files/arch/mips/ralink/rt305x/Makefile

@@ -12,6 +12,7 @@ obj-y	:= irq.o setup.o devices.o rt305x.o clock.o
 obj-$(CONFIG_EARLY_PRINTK)		+= early_printk.o
 
 obj-$(CONFIG_RT305X_MACH_3G_6200N)	+= mach-3g-6200n.o
+obj-$(CONFIG_RT305X_MACH_3G300M)	+= mach-3g300m.o
 obj-$(CONFIG_RT305X_MACH_ARGUS_ATP52B)	+= mach-argus-atp52b.o
 obj-$(CONFIG_RT305X_MACH_BC2)		+= mach-bc2.o
 obj-$(CONFIG_RT305X_MACH_AIR3GII)	+= mach-air3gii.o

target/linux/ramips/files/arch/mips/ralink/rt305x/mach-3g300m.c

@@ -0,0 +1,126 @@
+/*
+ *  Tenda 3G300M board support
+ *
+ *  Copyright (C) 2013 Cezary Jackiewicz <cezary.jackiewicz@gmail.com>
+ *
+ *  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 <linux/gpio.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 TENDA_3G300M_GPIO_BUTTON_RESET		0
+#define TENDA_3G300M_GPIO_BUTTON_MODE		10
+
+#define TENDA_3G300M_GPIO_LED_3GROUTER		11
+#define TENDA_3G300M_GPIO_LED_AP		12
+#define TENDA_3G300M_GPIO_LED_WISPROUTER	9
+#define TENDA_3G300M_GPIO_LED_WIRELESSROUTER	13
+#define TENDA_3G300M_GPIO_LED_3G		7
+#define TENDA_3G300M_GPIO_LED_WPSRESET		14
+
+#define TENDA_3G300M_KEYS_POLL_INTERVAL	20
+#define TENDA_3G300M_KEYS_DEBOUNCE_INTERVAL	(3 * TENDA_3G300M_KEYS_POLL_INTERVAL)
+
+const struct flash_platform_data tenda_3g300m_flash = {
+	.type		= "mx25l3205d",
+};
+
+struct spi_board_info tenda_3g300m_spi_slave_info[] __initdata = {
+	{
+		.modalias	= "m25p80",
+		.platform_data	= &tenda_3g300m_flash,
+		.irq		= -1,
+		.max_speed_hz	= 10000000,
+		.bus_num	= 0,
+		.chip_select	= 0,
+	}
+};
+
+static struct gpio_led tenda_3g300m_leds_gpio[] __initdata = {
+        {
+		.name		= "tenda:blue:3grouter",
+		.gpio		= TENDA_3G300M_GPIO_LED_3GROUTER,
+		.active_low	= 1,
+	},{
+		.name		= "tenda:blue:ap",
+		.gpio		= TENDA_3G300M_GPIO_LED_AP,
+		.active_low	= 1,
+	},{
+		.name		= "tenda:blue:wisprouter",
+		.gpio		= TENDA_3G300M_GPIO_LED_WISPROUTER,
+		.active_low	= 1,
+	},{
+		.name		= "tenda:blue:wirelessrouter",
+		.gpio		= TENDA_3G300M_GPIO_LED_WIRELESSROUTER,
+		.active_low	= 1,
+	},{
+		.name		= "tenda:blue:3g",
+		.gpio		= TENDA_3G300M_GPIO_LED_3G,
+		.active_low	= 1,
+	},{
+		.name		= "tenda:blue:wpsreset",
+		.gpio		= TENDA_3G300M_GPIO_LED_WPSRESET,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_button tenda_3g300m_gpio_buttons[] __initdata = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = TENDA_3G300M_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= TENDA_3G300M_GPIO_BUTTON_RESET,
+		.active_low	= 1,
+	},{
+		.desc		= "mode",
+		.type		= EV_KEY,
+		.code		= BTN_0,
+		.debounce_interval = TENDA_3G300M_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= TENDA_3G300M_GPIO_BUTTON_MODE,
+		.active_low	= 1,
+	}
+};
+
+static void __init tenda_3g300m_init(void)
+{
+	rt305x_gpio_init((RT305X_GPIO_MODE_GPIO <<
+			 RT305X_GPIO_MODE_UART0_SHIFT) |
+			 RT305X_GPIO_MODE_JTAG);
+
+	rt305x_register_spi(tenda_3g300m_spi_slave_info,
+			ARRAY_SIZE(tenda_3g300m_spi_slave_info));
+
+	ramips_register_gpio_leds(-1, ARRAY_SIZE(tenda_3g300m_leds_gpio),
+			tenda_3g300m_leds_gpio);
+
+	ramips_register_gpio_buttons(-1, TENDA_3G300M_KEYS_POLL_INTERVAL,
+			ARRAY_SIZE(tenda_3g300m_gpio_buttons),
+			tenda_3g300m_gpio_buttons);
+
+	rt305x_esw_data.vlan_config = RT305X_ESW_VLAN_CONFIG_LLLLW;
+	rt305x_register_ethernet();
+
+	rt305x_register_wifi();
+
+	rt305x_register_wdt();
+
+	rt305x_register_usb();
+}
+
+MIPS_MACHINE(RAMIPS_MACH_3G300M, "3G300M", "Tenda 3G300M",
+		tenda_3g300m_init);

target/linux/ramips/rt305x/config-3.7

@@ -103,6 +103,7 @@ CONFIG_RALINK_RT305X=y
 # CONFIG_RALINK_RT3883 is not set
 CONFIG_RAMIPS_WDT=y
 CONFIG_RT305X_MACH_3G_6200N=y
+CONFIG_RT305X_MACH_3G300M=y
 CONFIG_RT305X_MACH_AIR3GII=y
 CONFIG_RT305X_MACH_ALL0256N=y
 CONFIG_RT305X_MACH_ALL5002=y