ar71xx: add kernel support for BHU Networks BXU2000n-2 A1 board

BXU2000n-2 A1 is a BHU Networks WLAN board, use ar9341 chip.

Patchwork: http://patchwork.openwrt.org/patch/4183/
Signed-off-by: Terry Yang <yangbo@bhunetworks.com>
[juhosg:
  - rename and refresh kernel patch,
  - fix some checkpatch warnings and adjust whitespaces in
    mach-bhu-bxu2000n2-a.c]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@38591 3c298f89-4303-0410-b956-a3cf2f4a3e73

3 files changed, 160 insertions, 0 deletions

diff --git a/target/linux/ar71xx/config-3.10 b/target/linux/ar71xx/config-3.10
index c67cd4b338..b6c523b343 100644
--- a/target/linux/ar71xx/config-3.10
+++ b/target/linux/ar71xx/config-3.10
@@ -35,6 +35,7 @@ CONFIG_ATH79_MACH_AP83=y
 CONFIG_ATH79_MACH_AP96=y
 CONFIG_ATH79_MACH_ARCHER_C7=y
 CONFIG_ATH79_MACH_AW_NR580=y
+CONFIG_ATH79_MACH_BHU_BXU2000N2_A=y
 CONFIG_ATH79_MACH_CAP4200AG=y
 CONFIG_ATH79_MACH_CARAMBOLA2=y
 CONFIG_ATH79_MACH_DB120=y
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-bhu-bxu2000n2-a.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-bhu-bxu2000n2-a.c
new file mode 100644
index 0000000000..8d7c6112d7
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-bhu-bxu2000n2-a.c
@@ -0,0 +1,120 @@
+/*
+ *  BHU BXU2000n-2 A1 board support
+ *
+ *  Copyright (C) 2013 Terry Yang <yangbo@bhunetworks.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 <linux/platform_device.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 BHU_BXU2000N2_A1_GPIO_LED_WLAN		13
+#define BHU_BXU2000N2_A1_GPIO_LED_WAN		19
+#define BHU_BXU2000N2_A1_GPIO_LED_LAN		21
+#define BHU_BXU2000N2_A1_GPIO_LED_SYSTEM	14
+
+#define BHU_BXU2000N2_A1_GPIO_BTN_RESET		17
+
+#define BHU_BXU2000N2_KEYS_POLL_INTERVAL	20	/* msecs */
+#define BHU_BXU2000N2_KEYS_DEBOUNCE_INTERVAL	\
+	(3 * BHU_BXU2000N2_KEYS_POLL_INTERVAL)
+
+static const char *bhu_bxu2000n2_part_probes[] = {
+	"cmdlinepart",
+	NULL,
+};
+
+static struct flash_platform_data bhu_bxu2000n2_flash_data = {
+	.part_probes	= bhu_bxu2000n2_part_probes,
+};
+
+static struct gpio_led bhu_bxu2000n2_a1_leds_gpio[] __initdata = {
+	{
+		.name		= "bhu:green:status",
+		.gpio		= BHU_BXU2000N2_A1_GPIO_LED_SYSTEM,
+		.active_low	= 1,
+	}, {
+		.name		= "bhu:green:lan",
+		.gpio		= BHU_BXU2000N2_A1_GPIO_LED_LAN,
+		.active_low	= 1,
+	}, {
+		.name		= "bhu:green:wan",
+		.gpio		= BHU_BXU2000N2_A1_GPIO_LED_WAN,
+		.active_low	= 1,
+	}, {
+		.name		= "bhu:green:wlan",
+		.gpio		= BHU_BXU2000N2_A1_GPIO_LED_WLAN,
+		.active_low	= 1,
+	},
+};
+
+static struct gpio_keys_button bhu_bxu2000n2_a1_gpio_keys[] __initdata = {
+	{
+		.desc		= "Reset button",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = BHU_BXU2000N2_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= BHU_BXU2000N2_A1_GPIO_BTN_RESET,
+		.active_low	= 1,
+	}
+};
+
+static void __init bhu_ap123_setup(void)
+{
+	u8 *mac = (u8 *) KSEG1ADDR(0x1fff0000);
+	u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
+
+	ath79_register_m25p80(&bhu_bxu2000n2_flash_data);
+
+	ath79_register_mdio(1, 0x0);
+
+	ath79_init_mac(ath79_eth0_data.mac_addr, mac, 0);
+	ath79_init_mac(ath79_eth1_data.mac_addr, mac, 1);
+
+	/* GMAC0 is connected to the PHY4 of the internal switch */
+	ath79_switch_data.phy4_mii_en = 1;
+	ath79_switch_data.phy_poll_mask = BIT(4);
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.phy_mask = BIT(4);
+	ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
+	ath79_register_eth(0);
+
+	/* GMAC1 is connected to the internal switch. Only use PHY3 */
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
+	ath79_eth1_data.phy_mask = BIT(3);
+	ath79_register_eth(1);
+
+	ath79_register_wmac(ee, ee+2);
+}
+
+static void __init bhu_bxu2000n2_a1_setup(void)
+{
+	bhu_ap123_setup();
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(bhu_bxu2000n2_a1_leds_gpio),
+				 bhu_bxu2000n2_a1_leds_gpio);
+
+	ath79_register_gpio_keys_polled(1, BHU_BXU2000N2_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(bhu_bxu2000n2_a1_gpio_keys),
+					bhu_bxu2000n2_a1_gpio_keys);
+}
+
+MIPS_MACHINE(ATH79_MACH_BHU_BXU2000N2_A1, "BXU2000n-2-A1",
+	     "BHU BXU2000n-2 rev. A1",
+	     bhu_bxu2000n2_a1_setup);
+
diff --git a/target/linux/ar71xx/patches-3.10/631-MIPS-ath79-add-BHU-BXU2000n2-A1-support.patch b/target/linux/ar71xx/patches-3.10/631-MIPS-ath79-add-BHU-BXU2000n2-A1-support.patch
new file mode 100644
index 0000000000..8ebaa28805
--- /dev/null
+++ b/target/linux/ar71xx/patches-3.10/631-MIPS-ath79-add-BHU-BXU2000n2-A1-support.patch
@@ -0,0 +1,39 @@
+--- a/arch/mips/ath79/Kconfig
++++ b/arch/mips/ath79/Kconfig
+@@ -826,6 +826,16 @@ config ATH79_MACH_CARAMBOLA2
+ 	select ATH79_DEV_USB
+ 	select ATH79_DEV_WMAC
+ 
++config ATH79_MACH_BHU_BXU2000N2_A
++	bool "BHU BXU2000n-2 rev. A support"
++	select SOC_AR934X
++	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
++
+ endmenu
+ 
+ config SOC_AR71XX
+--- a/arch/mips/ath79/Makefile
++++ b/arch/mips/ath79/Makefile
+@@ -51,6 +51,7 @@ obj-$(CONFIG_ATH79_MACH_AP83)		+= mach-a
+ obj-$(CONFIG_ATH79_MACH_AP96)		+= mach-ap96.o
+ obj-$(CONFIG_ATH79_MACH_ARCHER_C7)	+= mach-archer-c7.o
+ obj-$(CONFIG_ATH79_MACH_AW_NR580)	+= mach-aw-nr580.o
++obj-$(CONFIG_ATH79_MACH_BHU_BXU2000N2_A)+= mach-bhu-bxu2000n2-a.o
+ obj-$(CONFIG_ATH79_MACH_CAP4200AG)	+= mach-cap4200ag.o
+ obj-$(CONFIG_ATH79_MACH_DB120)		+= mach-db120.o
+ obj-$(CONFIG_ATH79_MACH_DIR_505_A1)	+= mach-dir-505-a1.o
+--- a/arch/mips/ath79/machtypes.h
++++ b/arch/mips/ath79/machtypes.h
+@@ -33,6 +33,7 @@ enum ath79_mach_type {
+ 	ATH79_MACH_AP96,		/* Atheros AP96 */
+ 	ATH79_MACH_ARCHER_C7,		/* TP-LINK Archer C7 board */
+ 	ATH79_MACH_AW_NR580,		/* AzureWave AW-NR580 */
++	ATH79_MACH_BHU_BXU2000N2_A1,	/* BHU BXU2000n-2 A1 */
+ 	ATH79_MACH_CAP4200AG,		/* Senao CAP4200AG */
+ 	ATH79_MACH_CARAMBOLA2,		/* 8devices Carambola2 */
+ 	ATH79_MACH_DB120,		/* Atheros DB120 reference board */