ar71xx: support for D-LINK DIR-615 rev. E4

This patch adds support for D-LINK DIR-615 E4 board. It's mostly based
on the existing support for DIR-600 A1, with some changes in the leds
configuration.

It's an updated version of the patch that reliably works on my hw for
about a year (it was built from trunk on Jan 2011). When I decided to
update the firmware and checked for the current support for that device,
I also found previously posted patches by Alexey Loukianov that
mentioned some stability issues. I'm not sure where could be the
difference, the patches are very similar except the wmac led pin number
- I was using 1, and those patches used 17.

[juhosg: add 3.2 support]

Signed-off-by: Vadim Girlin <vadimgirlin@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@29973 3c298f89-4303-0410-b956-a3cf2f4a3e73

4 files changed, 194 insertions, 0 deletions

diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Kconfig b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Kconfig
index 60db3ef41..14982b195 100644
--- a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Kconfig
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Kconfig
@@ -104,6 +104,15 @@ config AR71XX_MACH_DIR_615_C1
 	select AR71XX_DEV_LEDS_GPIO
 	select AR71XX_NVRAM
 
+config AR71XX_MACH_DIR_615_E4
+	bool "D-Link DIR-615 rev. E4 support"
+	select SOC_AR724X
+	select AR71XX_DEV_AP91_PCI if PCI
+	select AR71XX_DEV_M25P80
+	select AR71XX_DEV_GPIO_BUTTONS
+	select AR71XX_DEV_LEDS_GPIO
+	select AR71XX_NVRAM
+
 config AR71XX_MACH_DIR_825_B1
 	bool "D-Link DIR-825 rev. B1 board support"
 	select SOC_AR71XX
diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Makefile b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Makefile
index 22e32e5ac..546ff34cc 100644
--- a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Makefile
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/Makefile
@@ -40,6 +40,7 @@ obj-$(CONFIG_AR71XX_MACH_AW_NR580)	+= mach-aw-nr580.o
 obj-$(CONFIG_AR71XX_MACH_DB120)		+= mach-db120.o
 obj-$(CONFIG_AR71XX_MACH_DIR_600_A1)	+= mach-dir-600-a1.o
 obj-$(CONFIG_AR71XX_MACH_DIR_615_C1)	+= mach-dir-615-c1.o
+obj-$(CONFIG_AR71XX_MACH_DIR_615_E4)	+= mach-dir-615-e4.o
 obj-$(CONFIG_AR71XX_MACH_DIR_825_B1)	+= mach-dir-825-b1.o
 obj-$(CONFIG_AR71XX_MACH_EAP7660D)	+= mach-eap7660d.o
 obj-$(CONFIG_AR71XX_MACH_JA76PF)	+= mach-ja76pf.o
diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-dir-615-e4.c b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-dir-615-e4.c
new file mode 100644
index 000000000..943929a59
--- /dev/null
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/mach-dir-615-e4.c
@@ -0,0 +1,183 @@
+/*
+ *  D-Link DIR-615 rev. E4 board support
+ *
+ *  Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2012 Vadim Girlin <vadimgirlin@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/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/mach-ar71xx/ar71xx.h>
+
+#include "machtype.h"
+#include "devices.h"
+#include "dev-m25p80.h"
+#include "dev-ap91-pci.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "nvram.h"
+
+#define DIR_615_E4_GPIO_LED_WPS			0
+#define DIR_615_E4_GPIO_LED_POWER_AMBER		1
+#define DIR_615_E4_GPIO_LED_POWER_GREEN		6
+#define DIR_615_E4_GPIO_LED_WAN_AMBER		7
+#define DIR_615_E4_GPIO_LED_WAN_GREEN		17
+#define DIR_615_E4_GPIO_LED_LAN1_GREEN		13
+#define DIR_615_E4_GPIO_LED_LAN2_GREEN		14
+#define DIR_615_E4_GPIO_LED_LAN3_GREEN		15
+#define DIR_615_E4_GPIO_LED_LAN4_GREEN		16
+
+#define DIR_615_E4_GPIO_BTN_RESET		8
+#define DIR_615_E4_GPIO_BTN_WPS			12
+
+#define DIR_615_E4_KEYS_POLL_INTERVAL	20
+#define DIR_615_E4_KEYS_DEBOUNCE_INTERVAL (3 * DIR_615_E4_KEYS_POLL_INTERVAL)
+
+#define DIR_615_E4_NVRAM_ADDR	0x1f030000
+#define DIR_615_E4_NVRAM_SIZE	0x10000
+
+#ifdef CONFIG_MTD_PARTITIONS
+static struct mtd_partition dir_615_e4_partitions[] = {
+	{
+		.name		= "u-boot",
+		.offset		= 0,
+		.size		= 0x030000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "nvram",
+		.offset		= 0x030000,
+		.size		= 0x010000,
+	}, {
+		.name		= "kernel",
+		.offset		= 0x040000,
+		.size		= 0x0e0000,
+	}, {
+		.name		= "rootfs",
+		.offset		= 0x120000,
+		.size		= 0x2c0000,
+	}, {
+		.name		= "mac",
+		.offset		= 0x3e0000,
+		.size		= 0x010000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "art",
+		.offset		= 0x3f0000,
+		.size		= 0x010000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "firmware",
+		.offset		= 0x040000,
+		.size		= 0x3a0000,
+	}
+};
+#endif /* CONFIG_MTD_PARTITIONS */
+
+static struct flash_platform_data dir_615_e4_flash_data = {
+#ifdef CONFIG_MTD_PARTITIONS
+	.parts		= dir_615_e4_partitions,
+	.nr_parts	= ARRAY_SIZE(dir_615_e4_partitions),
+#endif
+};
+
+
+static struct gpio_led dir_615_e4_leds_gpio[] __initdata = {
+	{
+		.name		= "dir-615-e4:green:power",
+		.gpio		= DIR_615_E4_GPIO_LED_POWER_GREEN,
+	}, {
+		.name		= "dir-615-e4:amber:power",
+		.gpio		= DIR_615_E4_GPIO_LED_POWER_AMBER,
+	}, {
+		.name		= "dir-615-e4:green:wan",
+		.gpio		= DIR_615_E4_GPIO_LED_WAN_GREEN,
+		.active_low	= 1,
+	}, {
+		.name		= "dir-615-e4:amber:wan",
+		.gpio		= DIR_615_E4_GPIO_LED_WAN_AMBER,
+	}, {
+		.name		= "dir-615-e4:green:lan1",
+		.gpio		= DIR_615_E4_GPIO_LED_LAN1_GREEN,
+		.active_low	= 1,
+	}, {
+		.name		= "dir-615-e4:green:lan2",
+		.gpio		= DIR_615_E4_GPIO_LED_LAN2_GREEN,
+		.active_low	= 1,
+	}, {
+		.name		= "dir-615-e4:green:lan3",
+		.gpio		= DIR_615_E4_GPIO_LED_LAN3_GREEN,
+		.active_low	= 1,
+	}, {
+		.name		= "dir-615-e4:green:lan4",
+		.gpio		= DIR_615_E4_GPIO_LED_LAN4_GREEN,
+		.active_low	= 1,
+	}, {
+		.name		= "dir-615-e4:blue:wps",
+		.gpio		= DIR_615_E4_GPIO_LED_WPS,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_button dir_615_e4_gpio_keys[] __initdata = {
+	{
+		.desc		= "reset",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = DIR_615_E4_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= DIR_615_E4_GPIO_BTN_RESET,
+		.active_low	= 1,
+	}, {
+		.desc		= "wps",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = DIR_615_E4_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= DIR_615_E4_GPIO_BTN_WPS,
+		.active_low	= 1,
+	}
+};
+
+static void __init dir_615_e4_setup(void)
+{
+	const char *nvram = (char *) KSEG1ADDR(DIR_615_E4_NVRAM_ADDR);
+	u8 *ee = (u8 *) KSEG1ADDR(0x1fff1000);
+	u8 mac_buff[6];
+	u8 *mac = NULL;
+
+	if (nvram_parse_mac_addr(nvram, DIR_615_E4_NVRAM_SIZE,
+				"lan_mac=", mac_buff) == 0) {
+		ar71xx_init_mac(ar71xx_eth0_data.mac_addr, mac_buff, 0);
+		ar71xx_init_mac(ar71xx_eth1_data.mac_addr, mac_buff, 1);
+		mac = mac_buff;
+	}
+
+	ar71xx_add_device_m25p80(&dir_615_e4_flash_data);
+
+	ar71xx_add_device_leds_gpio(-1, ARRAY_SIZE(dir_615_e4_leds_gpio),
+					dir_615_e4_leds_gpio);
+
+	ar71xx_register_gpio_keys_polled(-1, DIR_615_E4_KEYS_POLL_INTERVAL,
+					 ARRAY_SIZE(dir_615_e4_gpio_keys),
+					 dir_615_e4_gpio_keys);
+
+	ar71xx_init_mac(ar71xx_eth0_data.mac_addr, mac, 0);
+	ar71xx_init_mac(ar71xx_eth1_data.mac_addr, mac, 1);
+
+	ar71xx_add_device_mdio(0, 0x0);
+
+	/* LAN ports */
+	ar71xx_add_device_eth(1);
+
+	/* WAN port */
+	ar71xx_add_device_eth(0);
+
+	ap91_pci_setup_wmac_led_pin(1);
+	ap91_pci_init(ee, mac);
+}
+
+MIPS_MACHINE(AR71XX_MACH_DIR_615_E4, "DIR-615-E4", "D-Link DIR-615 rev. E4",
+	     dir_615_e4_setup);
diff --git a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/machtype.h b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/machtype.h
index 452055d78..82fc944cb 100644
--- a/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/machtype.h
+++ b/target/linux/ar71xx/files-2.6.39/arch/mips/ar71xx/machtype.h
@@ -29,6 +29,7 @@ enum ar71xx_mach_type {
 	AR71XX_MACH_DB120,      /* Atheros DB120 (AR934x based) */
 	AR71XX_MACH_DIR_600_A1,	/* D-Link DIR-600 rev. A1 */
 	AR71XX_MACH_DIR_615_C1,	/* D-Link DIR-615 rev. C1 */
+	AR71XX_MACH_DIR_615_E4,	/* D-Link DIR-615 rev. E4 */
 	AR71XX_MACH_DIR_825_B1,	/* D-Link DIR-825 rev. B1 */
 	AR71XX_MACH_EAP7660D,	/* Senao EAP7660D */
 	AR71XX_MACH_JA76PF,	/* jjPlus JA76PF */