ar71xx: add support for OpenEmbed SOM9331

This patch adds the target profile SOM9331 and configures hardware
functionality for the 3x Eth Ports & corresponding LED's, the USB Host,
the USART to USB bridge and the System LED.

Signed-off-by: Allan Nick Pedrana <nik9993@gmail.com>

4 files changed, 137 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
index 77415eb400..52b9b5527e 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -249,6 +249,16 @@ config ATH79_MACH_ESR1750
 	select ATH79_DEV_USB
 	select ATH79_DEV_WMAC
 
+config ATH79_MACH_SOM9331
+	bool "SOM9331 support"
+	select SOC_AR933X
+	select ATH79_DEV_ETH
+	select ATH79_DEV_GPIO_BUTTONS
+	select ATH79_DEV_LEDS_GPIO
+	select ATH79_DEV_M25P80
+	select ATH79_DEV_USB
+	select ATH79_DEV_WMAC
+
 config ATH79_MACH_WHR_HP_G300N
 	bool "Buffalo WHR-HP-G300N board support"
 	select SOC_AR724X
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index ce6314d19b..f8b0b2bb5a 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -135,6 +135,7 @@ obj-$(CONFIG_ATH79_MACH_RB2011)		+= mach-rb2011.o
 obj-$(CONFIG_ATH79_MACH_RBSXTLITE)	+= mach-rbsxtlite.o
 obj-$(CONFIG_ATH79_MACH_RW2458N)	+= mach-rw2458n.o
 obj-$(CONFIG_ATH79_MACH_SMART_300)	+= mach-smart-300.o
+obj-$(CONFIG_ATH79_MACH_SOM9331)	+= mach-som9331.o
 obj-$(CONFIG_ATH79_MACH_TELLSTICK_ZNET_LITE)	+= mach-tellstick-znet-lite.o
 obj-$(CONFIG_ATH79_MACH_TEW_632BRP)	+= mach-tew-632brp.o
 obj-$(CONFIG_ATH79_MACH_TEW_673GRU)	+= mach-tew-673gru.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-som9331.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-som9331.c
new file mode 100644
index 0000000000..eef5bcedc2
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-som9331.c
@@ -0,0 +1,125 @@
+/*
+ *  OpenEmbed SOM9331 board support
+ *
+ *  Copyright (C) 2011 dongyuqi <729650915@qq.com>
+ *  Copyright (C) 2011-2012 Gabor Juhos <juhosg@openwrt.org>
+ *
+ *  5/27/2016 - Modified by Allan Nick Pedrana <nik9993@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/gpio.h>
+
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/ar71xx_regs.h>
+
+#include "common.h"
+#include "dev-eth.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "dev-usb.h"
+#include "dev-wmac.h"
+#include "machtypes.h"
+
+#define SOM9331_GPIO_LED_WLAN   27
+#define SOM9331_GPIO_LED_SYSTEM 0
+#define SOM9331_GPIO_LED_2  13
+#define SOM9331_GPIO_LED_3  14
+#define SOM9331_GPIO_LED_5  16
+#define SOM9331_GPIO_LED_WAN    SOM9331_GPIO_LED_2
+#define SOM9331_GPIO_LED_LAN1   SOM9331_GPIO_LED_3
+#define SOM9331_GPIO_LED_LAN2   SOM9331_GPIO_LED_5
+#define SOM9331_GPIO_BTN_RESET  11
+
+#define SOM9331_KEYS_POLL_INTERVAL  20  /* msecs */
+#define SOM9331_KEYS_DEBOUNCE_INTERVAL  (3 * SOM9331_KEYS_POLL_INTERVAL)
+
+static const char *som9331_part_probes[] = {
+    "tp-link",
+    NULL,
+};
+
+static struct flash_platform_data som9331_flash_data = {
+    .part_probes    = som9331_part_probes,
+};
+
+static struct gpio_led som9331_leds_gpio[] __initdata = {
+    {
+        .name       = "som9331:red:wlan",
+        .gpio       = SOM9331_GPIO_LED_WLAN,
+        .active_low = 1,
+    },
+    {
+        .name       = "som9331:orange:wan",
+        .gpio       = SOM9331_GPIO_LED_WAN,
+        .active_low = 0,
+    },
+    {
+        .name       = "som9331:orange:lan1",
+        .gpio       = SOM9331_GPIO_LED_LAN1,
+        .active_low = 0,
+    },
+    {
+        .name       = "som9331:orange:lan2",
+        .gpio       = SOM9331_GPIO_LED_LAN2,
+        .active_low = 0,
+    },
+    {
+        .name       = "som9331:blue:system",
+        .gpio       = SOM9331_GPIO_LED_SYSTEM,
+        .active_low = 0,
+    },
+};
+
+static struct gpio_keys_button som9331_gpio_keys[] __initdata = {
+    {
+        .desc       = "reset",
+        .type       = EV_KEY,
+        .code       = KEY_RESTART,
+        .debounce_interval = SOM9331_KEYS_DEBOUNCE_INTERVAL,
+        .gpio       = SOM9331_GPIO_BTN_RESET,
+        .active_low = 0,
+    }
+};
+
+static void __init som9331_setup(void)
+{
+    u8 *mac = (u8 *) KSEG1ADDR(0x1f01fc00);
+    u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
+
+    ath79_setup_ar933x_phy4_switch(true, true);
+
+    ath79_gpio_function_disable(AR933X_GPIO_FUNC_ETH_SWITCH_LED0_EN |
+                    AR933X_GPIO_FUNC_ETH_SWITCH_LED1_EN |
+                    AR933X_GPIO_FUNC_ETH_SWITCH_LED2_EN |
+                    AR933X_GPIO_FUNC_ETH_SWITCH_LED3_EN |
+                    AR933X_GPIO_FUNC_ETH_SWITCH_LED4_EN);
+
+    ath79_register_m25p80(&som9331_flash_data);
+    ath79_register_leds_gpio(-1, ARRAY_SIZE(som9331_leds_gpio),
+                 som9331_leds_gpio);
+    ath79_register_gpio_keys_polled(-1, SOM9331_KEYS_POLL_INTERVAL,
+                    ARRAY_SIZE(som9331_gpio_keys),
+                    som9331_gpio_keys);
+
+    ath79_register_usb();
+
+    ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
+    ath79_init_mac(ath79_eth1_data.mac_addr, mac, -1);
+
+    ath79_register_mdio(0, 0x0);
+
+    /* LAN ports */
+    ath79_register_eth(1);
+
+    /* WAN port */
+    ath79_register_eth(0);
+
+    ath79_register_wmac(ee, mac);
+}
+
+MIPS_MACHINE(ATH79_MACH_SOM9331, "SOM9331", "OpenEmbed SOM9331", som9331_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 441c227da6..f40b4a43b5 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -153,6 +153,7 @@ enum ath79_mach_type {
 	ATH79_MACH_RB_SXTLITE5ND,	/* Mikrotik RouterBOARD SXT Lite 5nD */
 	ATH79_MACH_RW2458N,		/* Redwave RW2458N */
 	ATH79_MACH_SMART_300,		/* NC-LINK SMART-300 */
+	ATH79_MACH_SOM9331,		/* OpenEmbed SOM9331 */
 	ATH79_MACH_TELLSTICK_ZNET_LITE,	/* TellStick ZNet Lite */
 	ATH79_MACH_TEW_632BRP,		/* TRENDnet TEW-632BRP */
 	ATH79_MACH_TEW_673GRU,		/* TRENDnet TEW-673GRU */