From 7f5193750c4fb525ab7bd0610d05631b1dfbd8bb Mon Sep 17 00:00:00 2001
From: Phil Sutter <phil@nwl.cc>
Date: Wed, 14 May 2014 03:10:28 +0200
Subject: [PATCH] MIPS: ath79: add Mikrotik rb4xx device support

---
 arch/mips/ath79/Kconfig      |   8 +
 arch/mips/ath79/Makefile     |   1 +
 arch/mips/ath79/mach-rb4xx.c | 465 +++++++++++++++++++++++++++++++++++++++++++
 arch/mips/ath79/machtypes.h  |   9 +
 4 files changed, 483 insertions(+)
 create mode 100644 arch/mips/ath79/mach-rb4xx.c

diff --git a/arch/mips/ath79/Kconfig b/arch/mips/ath79/Kconfig
index 52cefd7..7863079 100644
--- a/arch/mips/ath79/Kconfig
+++ b/arch/mips/ath79/Kconfig
@@ -61,6 +61,14 @@ config ATH79_MACH_PB44
 	  Say 'Y' here if you want your kernel to support the
 	  Atheros PB44 reference board.
 
+config ATH79_MACH_RB4XX
+	bool "MikroTik RouterBOARD 4xx series support"
+	select SOC_AR71XX
+	select ATH79_DEV_ETH
+	select ATH79_DEV_GPIO_BUTTONS
+	select ATH79_DEV_LEDS_GPIO
+	select ATH79_DEV_USB
+
 config ATH79_MACH_UBNT_XM
 	bool "Ubiquiti Networks XM (rev 1.0) board"
 	select SOC_AR724X
diff --git a/arch/mips/ath79/Makefile b/arch/mips/ath79/Makefile
index 05485da..2b0e01b 100644
--- a/arch/mips/ath79/Makefile
+++ b/arch/mips/ath79/Makefile
@@ -32,4 +32,5 @@ obj-$(CONFIG_ATH79_MACH_AP136)		+= mach-ap136.o
 obj-$(CONFIG_ATH79_MACH_AP81)		+= mach-ap81.o
 obj-$(CONFIG_ATH79_MACH_DB120)		+= mach-db120.o
 obj-$(CONFIG_ATH79_MACH_PB44)		+= mach-pb44.o
+obj-$(CONFIG_ATH79_MACH_RB4XX)		+= mach-rb4xx.o
 obj-$(CONFIG_ATH79_MACH_UBNT_XM)	+= mach-ubnt-xm.o
diff --git a/arch/mips/ath79/mach-rb4xx.c b/arch/mips/ath79/mach-rb4xx.c
new file mode 100644
index 0000000..1a61b45
--- /dev/null
+++ b/arch/mips/ath79/mach-rb4xx.c
@@ -0,0 +1,465 @@
+/*
+ *  MikroTik RouterBOARD 4xx series support
+ *
+ *  Copyright (C) 2008-2012 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  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/platform_device.h>
+#include <linux/irq.h>
+#include <linux/mdio-gpio.h>
+#include <linux/mmc/host.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/flash.h>
+#include <linux/spi/mmc_spi.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/mach-ath79/ar71xx_regs.h>
+#include <asm/mach-ath79/ath79.h>
+#include <asm/mach-ath79/rb4xx_cpld.h>
+
+#include "common.h"
+#include "dev-eth.h"
+#include "dev-gpio-buttons.h"
+#include "dev-leds-gpio.h"
+#include "dev-usb.h"
+#include "machtypes.h"
+#include "pci.h"
+
+#define RB4XX_GPIO_USER_LED	4
+#define RB4XX_GPIO_RESET_SWITCH	7
+
+#define RB4XX_GPIO_CPLD_BASE	32
+#define RB4XX_GPIO_CPLD_LED1	(RB4XX_GPIO_CPLD_BASE + CPLD_GPIO_nLED1)
+#define RB4XX_GPIO_CPLD_LED2	(RB4XX_GPIO_CPLD_BASE + CPLD_GPIO_nLED2)
+#define RB4XX_GPIO_CPLD_LED3	(RB4XX_GPIO_CPLD_BASE + CPLD_GPIO_nLED3)
+#define RB4XX_GPIO_CPLD_LED4	(RB4XX_GPIO_CPLD_BASE + CPLD_GPIO_nLED4)
+#define RB4XX_GPIO_CPLD_LED5	(RB4XX_GPIO_CPLD_BASE + CPLD_GPIO_nLED5)
+
+#define RB4XX_KEYS_POLL_INTERVAL	20	/* msecs */
+#define RB4XX_KEYS_DEBOUNCE_INTERVAL	(3 * RB4XX_KEYS_POLL_INTERVAL)
+
+static struct gpio_led rb4xx_leds_gpio[] __initdata = {
+	{
+		.name		= "rb4xx:yellow:user",
+		.gpio		= RB4XX_GPIO_USER_LED,
+		.active_low	= 0,
+	}, {
+		.name		= "rb4xx:green:led1",
+		.gpio		= RB4XX_GPIO_CPLD_LED1,
+		.active_low	= 1,
+	}, {
+		.name		= "rb4xx:green:led2",
+		.gpio		= RB4XX_GPIO_CPLD_LED2,
+		.active_low	= 1,
+	}, {
+		.name		= "rb4xx:green:led3",
+		.gpio		= RB4XX_GPIO_CPLD_LED3,
+		.active_low	= 1,
+	}, {
+		.name		= "rb4xx:green:led4",
+		.gpio		= RB4XX_GPIO_CPLD_LED4,
+		.active_low	= 1,
+	}, {
+		.name		= "rb4xx:green:led5",
+		.gpio		= RB4XX_GPIO_CPLD_LED5,
+		.active_low	= 0,
+	},
+};
+
+static struct gpio_keys_button rb4xx_gpio_keys[] __initdata = {
+	{
+		.desc		= "reset_switch",
+		.type		= EV_KEY,
+		.code		= KEY_RESTART,
+		.debounce_interval = RB4XX_KEYS_DEBOUNCE_INTERVAL,
+		.gpio		= RB4XX_GPIO_RESET_SWITCH,
+		.active_low	= 1,
+	}
+};
+
+static struct platform_device rb4xx_nand_device = {
+	.name	= "rb4xx-nand",
+	.id	= -1,
+};
+
+static struct ath79_pci_irq rb4xx_pci_irqs[] __initdata = {
+	{
+		.slot	= 17,
+		.pin	= 1,
+		.irq	= ATH79_PCI_IRQ(2),
+	}, {
+		.slot	= 18,
+		.pin	= 1,
+		.irq	= ATH79_PCI_IRQ(0),
+	}, {
+		.slot	= 18,
+		.pin	= 2,
+		.irq	= ATH79_PCI_IRQ(1),
+	}, {
+		.slot	= 19,
+		.pin	= 1,
+		.irq	= ATH79_PCI_IRQ(1),
+	}, {
+		.slot	= 19,
+		.pin	= 2,
+		.irq	= ATH79_PCI_IRQ(2),
+	}, {
+		.slot	= 20,
+		.pin	= 1,
+		.irq	= ATH79_PCI_IRQ(2),
+	}, {
+		.slot	= 20,
+		.pin	= 2,
+		.irq	= ATH79_PCI_IRQ(0),
+	}, {
+		.slot	= 21,
+		.pin	= 1,
+		.irq	= ATH79_PCI_IRQ(0),
+	}, {
+		.slot	= 22,
+		.pin	= 1,
+		.irq	= ATH79_PCI_IRQ(1),
+	}, {
+		.slot	= 22,
+		.pin	= 2,
+		.irq	= ATH79_PCI_IRQ(2),
+	}, {
+		.slot	= 23,
+		.pin	= 1,
+		.irq	= ATH79_PCI_IRQ(2),
+	}, {
+		.slot	= 23,
+		.pin	= 2,
+		.irq	= ATH79_PCI_IRQ(0),
+	}
+};
+
+static struct mtd_partition rb4xx_partitions[] = {
+	{
+		.name		= "routerboot",
+		.offset		= 0,
+		.size		= 0x0b000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "hard_config",
+		.offset		= 0x0b000,
+		.size		= 0x01000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "bios",
+		.offset		= 0x0d000,
+		.size		= 0x02000,
+		.mask_flags	= MTD_WRITEABLE,
+	}, {
+		.name		= "soft_config",
+		.offset		= 0x0f000,
+		.size		= 0x01000,
+	}
+};
+
+static struct flash_platform_data rb4xx_flash_data = {
+	.type		= "pm25lv512",
+	.parts		= rb4xx_partitions,
+	.nr_parts	= ARRAY_SIZE(rb4xx_partitions),
+};
+
+static struct rb4xx_cpld_platform_data rb4xx_cpld_data = {
+	.gpio_base	= RB4XX_GPIO_CPLD_BASE,
+};
+
+static struct mmc_spi_platform_data rb4xx_mmc_data = {
+	.ocr_mask	= MMC_VDD_32_33 | MMC_VDD_33_34,
+};
+
+static struct spi_board_info rb4xx_spi_info[] = {
+	{
+		.bus_num	= 0,
+		.chip_select	= 0,
+		.max_speed_hz	= 25000000,
+		.modalias	= "m25p80",
+		.platform_data	= &rb4xx_flash_data,
+	}, {
+		.bus_num	= 0,
+		.chip_select	= 1,
+		.max_speed_hz	= 25000000,
+		.modalias	= "spi-rb4xx-cpld",
+		.platform_data	= &rb4xx_cpld_data,
+	}
+};
+
+static struct spi_board_info rb4xx_microsd_info[] = {
+	{
+		.bus_num	= 0,
+		.chip_select	= 2,
+		.max_speed_hz	= 25000000,
+		.modalias	= "mmc_spi",
+		.platform_data	= &rb4xx_mmc_data,
+	}
+};
+
+
+static struct resource rb4xx_spi_resources[] = {
+	{
+		.start	= AR71XX_SPI_BASE,
+		.end	= AR71XX_SPI_BASE + AR71XX_SPI_SIZE - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device rb4xx_spi_device = {
+	.name		= "rb4xx-spi",
+	.id		= -1,
+	.resource	= rb4xx_spi_resources,
+	.num_resources	= ARRAY_SIZE(rb4xx_spi_resources),
+};
+
+static void __init rb4xx_generic_setup(void)
+{
+	ath79_gpio_function_enable(AR71XX_GPIO_FUNC_SPI_CS1_EN |
+				   AR71XX_GPIO_FUNC_SPI_CS2_EN);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
+					rb4xx_leds_gpio);
+
+	ath79_register_gpio_keys_polled(-1, RB4XX_KEYS_POLL_INTERVAL,
+					ARRAY_SIZE(rb4xx_gpio_keys),
+					rb4xx_gpio_keys);
+
+	spi_register_board_info(rb4xx_spi_info, ARRAY_SIZE(rb4xx_spi_info));
+	platform_device_register(&rb4xx_spi_device);
+	platform_device_register(&rb4xx_nand_device);
+}
+
+static void __init rb411_setup(void)
+{
+	rb4xx_generic_setup();
+	spi_register_board_info(rb4xx_microsd_info,
+				ARRAY_SIZE(rb4xx_microsd_info));
+
+	ath79_register_mdio(0, 0xfffffffc);
+
+	ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.phy_mask = 0x00000003;
+
+	ath79_register_eth(0);
+
+	ath79_pci_set_irq_map(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
+	ath79_register_pci();
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_411, "411", "MikroTik RouterBOARD 411/A/AH",
+	     rb411_setup);
+
+static void __init rb411u_setup(void)
+{
+	rb411_setup();
+	ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_411U, "411U", "MikroTik RouterBOARD 411U",
+	     rb411u_setup);
+
+#define RB433_LAN_PHYMASK	BIT(0)
+#define RB433_WAN_PHYMASK	BIT(4)
+#define RB433_MDIO_PHYMASK	(RB433_LAN_PHYMASK | RB433_WAN_PHYMASK)
+
+static void __init rb433_setup(void)
+{
+	rb4xx_generic_setup();
+	spi_register_board_info(rb4xx_microsd_info,
+				ARRAY_SIZE(rb4xx_microsd_info));
+
+	ath79_register_mdio(0, ~RB433_MDIO_PHYMASK);
+
+	ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 1);
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.phy_mask = RB433_LAN_PHYMASK;
+
+	ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 0);
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
+	ath79_eth1_data.phy_mask = RB433_WAN_PHYMASK;
+
+	ath79_register_eth(1);
+	ath79_register_eth(0);
+
+	ath79_pci_set_irq_map(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
+	ath79_register_pci();
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_433, "433", "MikroTik RouterBOARD 433/AH",
+	     rb433_setup);
+
+static void __init rb433u_setup(void)
+{
+	rb433_setup();
+	ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_433U, "433U", "MikroTik RouterBOARD 433UAH",
+	     rb433u_setup);
+
+static void __init rb435g_setup(void)
+{
+	rb4xx_generic_setup();
+
+	spi_register_board_info(rb4xx_microsd_info,
+				ARRAY_SIZE(rb4xx_microsd_info));
+
+	ath79_register_mdio(0, ~RB433_MDIO_PHYMASK);
+
+	ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 1);
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth0_data.phy_mask = RB433_LAN_PHYMASK;
+
+	ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 0);
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth1_data.phy_mask = RB433_WAN_PHYMASK;
+
+	ath79_register_eth(1);
+	ath79_register_eth(0);
+
+	ath79_pci_set_irq_map(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
+	ath79_register_pci();
+
+	ath79_register_usb();
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_435G, "435G", "MikroTik RouterBOARD 435G",
+	     rb435g_setup);
+
+#define RB450_LAN_PHYMASK	BIT(0)
+#define RB450_WAN_PHYMASK	BIT(4)
+#define RB450_MDIO_PHYMASK	(RB450_LAN_PHYMASK | RB450_WAN_PHYMASK)
+
+static void __init rb450_generic_setup(int gige)
+{
+	rb4xx_generic_setup();
+	ath79_register_mdio(0, ~RB450_MDIO_PHYMASK);
+
+	ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 1);
+	ath79_eth0_data.phy_if_mode = (gige) ?
+		PHY_INTERFACE_MODE_RGMII : PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.phy_mask = RB450_LAN_PHYMASK;
+
+	ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 0);
+	ath79_eth1_data.phy_if_mode = (gige) ?
+		PHY_INTERFACE_MODE_RGMII : PHY_INTERFACE_MODE_RMII;
+	ath79_eth1_data.phy_mask = RB450_WAN_PHYMASK;
+
+	ath79_register_eth(1);
+	ath79_register_eth(0);
+}
+
+static void __init rb450_setup(void)
+{
+	rb450_generic_setup(0);
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_450, "450", "MikroTik RouterBOARD 450",
+	     rb450_setup);
+
+static void __init rb450g_setup(void)
+{
+	rb450_generic_setup(1);
+	spi_register_board_info(rb4xx_microsd_info,
+				ARRAY_SIZE(rb4xx_microsd_info));
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_450G, "450G", "MikroTik RouterBOARD 450G",
+	     rb450g_setup);
+
+static void __init rb493_setup(void)
+{
+	rb4xx_generic_setup();
+
+	ath79_register_mdio(0, 0x3fffff00);
+
+	ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
+	ath79_eth0_data.speed = SPEED_100;
+	ath79_eth0_data.duplex = DUPLEX_FULL;
+
+	ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 1);
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RMII;
+	ath79_eth1_data.phy_mask = 0x00000001;
+
+	ath79_register_eth(0);
+	ath79_register_eth(1);
+
+	ath79_pci_set_irq_map(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
+	ath79_register_pci();
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_493, "493", "MikroTik RouterBOARD 493/AH",
+	     rb493_setup);
+
+#define RB493G_GPIO_MDIO_MDC		7
+#define RB493G_GPIO_MDIO_DATA		8
+
+#define RB493G_MDIO_PHYMASK		BIT(0)
+
+static struct mdio_gpio_platform_data rb493g_mdio_data = {
+	.mdc		= RB493G_GPIO_MDIO_MDC,
+	.mdio		= RB493G_GPIO_MDIO_DATA,
+
+	.phy_mask	= ~RB493G_MDIO_PHYMASK,
+};
+
+static struct platform_device rb493g_mdio_device = {
+	.name 		= "mdio-gpio",
+	.id 		= -1,
+	.dev 		= {
+		.platform_data	= &rb493g_mdio_data,
+	},
+};
+
+static void __init rb493g_setup(void)
+{
+	ath79_gpio_function_enable(AR71XX_GPIO_FUNC_SPI_CS1_EN |
+				    AR71XX_GPIO_FUNC_SPI_CS2_EN);
+
+	ath79_register_leds_gpio(-1, ARRAY_SIZE(rb4xx_leds_gpio),
+				    rb4xx_leds_gpio);
+
+	spi_register_board_info(rb4xx_spi_info, ARRAY_SIZE(rb4xx_spi_info));
+	spi_register_board_info(rb4xx_microsd_info,
+				ARRAY_SIZE(rb4xx_microsd_info));
+
+	platform_device_register(&rb4xx_spi_device);
+	platform_device_register(&rb4xx_nand_device);
+
+	ath79_register_mdio(0, ~RB493G_MDIO_PHYMASK);
+
+	ath79_init_mac(ath79_eth0_data.mac_addr, ath79_mac_base, 0);
+	ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth0_data.phy_mask = RB493G_MDIO_PHYMASK;
+	ath79_eth0_data.speed = SPEED_1000;
+	ath79_eth0_data.duplex = DUPLEX_FULL;
+
+	ath79_init_mac(ath79_eth1_data.mac_addr, ath79_mac_base, 1);
+	ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_RGMII;
+	ath79_eth1_data.mii_bus_dev = &rb493g_mdio_device.dev;
+	ath79_eth1_data.phy_mask = RB493G_MDIO_PHYMASK;
+	ath79_eth1_data.speed = SPEED_1000;
+	ath79_eth1_data.duplex = DUPLEX_FULL;
+
+	platform_device_register(&rb493g_mdio_device);
+
+	ath79_register_eth(1);
+	ath79_register_eth(0);
+
+	ath79_register_usb();
+
+	ath79_pci_set_irq_map(ARRAY_SIZE(rb4xx_pci_irqs), rb4xx_pci_irqs);
+	ath79_register_pci();
+}
+
+MIPS_MACHINE(ATH79_MACH_RB_493G, "493G", "MikroTik RouterBOARD 493G",
+	     rb493g_setup);
diff --git a/arch/mips/ath79/machtypes.h b/arch/mips/ath79/machtypes.h
index 2625405..7630954 100644
--- a/arch/mips/ath79/machtypes.h
+++ b/arch/mips/ath79/machtypes.h
@@ -21,6 +21,15 @@ enum ath79_mach_type {
 	ATH79_MACH_AP81,		/* Atheros AP81 reference board */
 	ATH79_MACH_DB120,		/* Atheros DB120 reference board */
 	ATH79_MACH_PB44,		/* Atheros PB44 reference board */
+	ATH79_MACH_RB_411,		/* MikroTik RouterBOARD 411/411A/411AH */
+	ATH79_MACH_RB_411U,		/* MikroTik RouterBOARD 411U */
+	ATH79_MACH_RB_433,		/* MikroTik RouterBOARD 433/433AH */
+	ATH79_MACH_RB_433U,		/* MikroTik RouterBOARD 433UAH */
+	ATH79_MACH_RB_435G,		/* MikroTik RouterBOARD 435G */
+	ATH79_MACH_RB_450G,		/* MikroTik RouterBOARD 450G */
+	ATH79_MACH_RB_450,		/* MikroTik RouterBOARD 450 */
+	ATH79_MACH_RB_493,		/* Mikrotik RouterBOARD 493/493AH */
+	ATH79_MACH_RB_493G,		/* Mikrotik RouterBOARD 493G */
 	ATH79_MACH_UBNT_XM,		/* Ubiquiti Networks XM board rev 1.0 */
 };
 
-- 
1.8.5.3

