ar71xx: add AVM FRITZ!WLAN Repeater 300E support

Specifications:
* SoC: AR7242 (Virian 400MHz)
* RAM: 64 MB DDR (W9751G6JB-25)
* Flash: 16MB SPI flash (S25FL129PIF)
* WiFi: AR9382 (2.4/5GHz) + 2x SE2595L
* LAN: 1x1000M (PEF7071V)

To install LEDE via EVA bootloader, a FTP connection need to be
established to 192.168.178.1 within the first seconds after power on:

  ftp> quote USER adam2
  ftp> quote PASS adam2
  ftp> binary
  ftp> debug
  ftp> passive
  ftp> quote MEDIA FLSH
  ftp> put lede-ar71xx-generic-fritz300e-squashfs-sysupgrade.bin mtd1

Signed-off-by: Mathias Kresin <dev@kresin.me>

4 files changed, 143 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 6182a6f47f..0df5a88dc3 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Kconfig.openwrt
@@ -2061,3 +2061,12 @@ config ATH79_MACH_TL_WPA8630
 	select ATH79_DEV_LEDS_GPIO
 	select ATH79_DEV_M25P80
 	select ATH79_DEV_WMAC
+
+config ATH79_MACH_FRITZ300E
+	bool "AVM FRITZ!WLAN Repeater 300E support"
+	select SOC_AR724X
+	select ATH79_DEV_AP9X_PCI if PCI
+	select ATH79_DEV_ETH
+	select ATH79_DEV_GPIO_BUTTONS
+	select ATH79_DEV_LEDS_GPIO
+	select ATH79_DEV_M25P80
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/Makefile b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
index 5c22fafe51..5a848d0399 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/Makefile
+++ b/target/linux/ar71xx/files/arch/mips/ath79/Makefile
@@ -111,6 +111,7 @@ obj-$(CONFIG_ATH79_MACH_ESR1750)		+= mach-esr1750.o
 obj-$(CONFIG_ATH79_MACH_ESR900)			+= mach-esr900.o
 obj-$(CONFIG_ATH79_MACH_EW_DORIN)		+= mach-ew-dorin.o
 obj-$(CONFIG_ATH79_MACH_F9K1115V2)		+= mach-f9k1115v2.o
+obj-$(CONFIG_ATH79_MACH_FRITZ300E)		+= mach-fritz300e.o
 obj-$(CONFIG_ATH79_MACH_GL_AR150)		+= mach-gl-ar150.o
 obj-$(CONFIG_ATH79_MACH_GL_AR300)		+= mach-gl-ar300.o
 obj-$(CONFIG_ATH79_MACH_GL_AR300M)		+= mach-gl-ar300m.o
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/mach-fritz300e.c b/target/linux/ar71xx/files/arch/mips/ath79/mach-fritz300e.c
new file mode 100644
index 0000000000..43af71a0a8
--- /dev/null
+++ b/target/linux/ar71xx/files/arch/mips/ath79/mach-fritz300e.c
@@ -0,0 +1,132 @@
+/*
+ *  AVM FRITZ!WLAN Repeater 300E board support
+ *
+ *  Copyright (C) 2017 Mathias Kresin <dev@kresin.me>
+ *
+ *  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/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#include "dev-ap9x-pci.h"
+#include "dev-eth.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-m25p80.h"
+#include "machtypes.h"
+
+#define FRITZ300E_KEYS_POLL_INTERVAL	 	20 /* msecs */
+#define FRITZ300E_KEYS_DEBOUNCE_INTERVAL	(3 * FRITZ300E_KEYS_POLL_INTERVAL)
+
+static struct mtd_partition fritz300e_flash_partitions[] = {
+	{
+		.name		= "urloader",
+		.offset		= 0,
+		.size		= 0x0020000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "firmware",
+		.offset		= 0x0020000,
+		.size		= 0x0ee0000,
+	}, {
+		.name		= "tffs (1)",
+		.offset		= 0x0f00000,
+		.size		= 0x0080000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name           = "tffs (2)",
+		.offset         = 0x0f80000,
+		.size           = 0x0080000,
+		.mask_flags     = MTD_WRITEABLE,
+	}
+};
+
+static struct flash_platform_data fritz300e_flash_data = {
+	.parts		= fritz300e_flash_partitions,
+	.nr_parts	= ARRAY_SIZE(fritz300e_flash_partitions),
+};
+
+static struct gpio_led fritz300e_leds_gpio[] __initdata = {
+	{
+		.name		= "fritz300e:green:power",
+		.gpio		= 13,
+		.active_low	= 1,
+	}, {
+		.name		= "fritz300e:green:lan",
+		.gpio		= 15,
+		.active_low	= 1,
+	}, {
+		.name		= "fritz300e:green:wlan",
+		.gpio		= 16,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_led fritz300e_wmac_leds_gpio[] = {
+	{
+		.name		= "fritz300e:green:rssi0",
+		.gpio		= 10,
+		.active_low	= 1,
+	}, {
+		.name		= "fritz300e:green:rssi1",
+		.gpio		= 4,
+		.active_low	= 1,
+	}, {
+		.name		= "fritz300e:green:rssi2",
+		.gpio		= 6,
+		.active_low	= 1,
+	}, {
+		.name		= "fritz300e:green:rssi3",
+		.gpio		= 7,
+		.active_low	= 1,
+	}, {
+		.name		= "fritz300e:green:rssi4",
+		.gpio		= 5,
+		.active_low	= 1,
+	}
+};
+
+static struct gpio_keys_button fritz300e_gpio_keys[] __initdata = {
+	{
+		.desc		= "wps",
+		.type		= EV_KEY,
+		.code		= KEY_WPS_BUTTON,
+		.debounce_interval = FRITZ300E_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= 12,
+		.active_low	= 1,
+	},
+};
+
+static void __init fritz300e_setup(void)
+{
+	/* get the Lantiq PEF7071V phy out of reset */
+	gpio_request_one(11, GPIOF_OUT_INIT_HIGH, "phy reset");
+
+	ath79_register_m25p80(&fritz300e_flash_data);
+
+	ath79_register_mdio(0, ~(BIT(0)));
+
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth0_data.speed = SPEED_1000;
+	ath79_eth0_data.duplex = DUPLEX_FULL;
+	ath79_eth0_data.phy_mask = BIT(0);
+
+	ath79_register_eth(0);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(fritz300e_leds_gpio),
+				 fritz300e_leds_gpio);
+	ath79_register_gpio_keys_polled(-1, FRITZ300E_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(fritz300e_gpio_keys),
+					fritz300e_gpio_keys);
+
+	ap9x_pci_setup_wmac_leds(0, fritz300e_wmac_leds_gpio,
+				 ARRAY_SIZE(fritz300e_wmac_leds_gpio));
+	ap91_pci_init_simple();
+}
+
+MIPS_MACHINE(ATH79_MACH_FRITZ300E, "FRITZ300E",
+	     "AVM FRITZ!WLAN Repeater 300E", fritz300e_setup);
diff --git a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
index 19d06c9834..8d0dfd662b 100644
--- a/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
+++ b/target/linux/ar71xx/files/arch/mips/ath79/machtypes.h
@@ -103,6 +103,7 @@ enum ath79_mach_type {
 	ATH79_MACH_EW_DORIN,			/* embedded wireless Dorin Platform */
 	ATH79_MACH_EW_DORIN_ROUTER,		/* embedded wireless Dorin Router Platform */
 	ATH79_MACH_F9K1115V2,			/* Belkin AC1750DB */
+	ATH79_MACH_FRITZ300E,			/* AVM FRITZ!WLAN Repeater 300E */
 	ATH79_MACH_GL_AR150,			/* GL-AR150 support */
 	ATH79_MACH_GL_AR300,			/* GL-AR300 */
 	ATH79_MACH_GL_AR300M,			/* GL-AR300M */