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/*
* Teltonika RUT900 series boards support
*
* Copyright (C) 2018 Piotr Dymacz <pepe2k@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 <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/i2c-gpio.h>
#include <linux/platform_data/pca953x.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 RUT9XX_GPIO_LED_LAN1 14
#define RUT9XX_GPIO_LED_LAN2 13
#define RUT9XX_GPIO_LED_LAN3 22
#define RUT9XX_GPIO_LED_WAN 1
#define RUT9XX_PCA9539_GPIO_BASE 32
#define RUT9XX_PCA9539_GPIO_SIGNAL1 (0 + RUT9XX_PCA9539_GPIO_BASE)
#define RUT9XX_PCA9539_GPIO_SIGNAL2 (1 + RUT9XX_PCA9539_GPIO_BASE)
#define RUT9XX_PCA9539_GPIO_SIGNAL3 (2 + RUT9XX_PCA9539_GPIO_BASE)
#define RUT9XX_PCA9539_GPIO_SIGNAL4 (3 + RUT9XX_PCA9539_GPIO_BASE)
#define RUT9XX_PCA9539_GPIO_SIGNAL5 (4 + RUT9XX_PCA9539_GPIO_BASE)
#define RUT9XX_PCA9539_GPIO_STATUS_R (5 + RUT9XX_PCA9539_GPIO_BASE)
#define RUT9XX_PCA9539_GPIO_STATUS_G (6 + RUT9XX_PCA9539_GPIO_BASE)
#define RUT9XX_GPIO_BTN_RESET 15
#define RUT9XX_GPIO_I2C_SCK 16
#define RUT9XX_GPIO_I2C_SDA 17
#define RUT9XX_GPIO_EXT_LNA0 2
#define RUT9XX_WMAC_CALDATA_OFFSET 0x1000
#define RUT9XX_KEYS_POLL_INTERVAL 20
#define RUT9XX_KEYS_DEBOUNCE_INTERVAL (3 * RUT9XX_KEYS_POLL_INTERVAL)
static struct gpio_led rut900_leds_gpio[] __initdata = {
{
.name = "rut900:green:lan1",
.gpio = RUT9XX_GPIO_LED_LAN1,
.active_low = 1,
}, {
.name = "rut900:green:lan2",
.gpio = RUT9XX_GPIO_LED_LAN2,
.active_low = 1,
}, {
.name = "rut900:green:lan3",
.gpio = RUT9XX_GPIO_LED_LAN3,
.active_low = 1,
}, {
.name = "rut900:green:signal1",
.gpio = RUT9XX_PCA9539_GPIO_SIGNAL1,
.active_low = 0,
}, {
.name = "rut900:green:signal2",
.gpio = RUT9XX_PCA9539_GPIO_SIGNAL2,
.active_low = 0,
}, {
.name = "rut900:green:signal3",
.gpio = RUT9XX_PCA9539_GPIO_SIGNAL3,
.active_low = 0,
}, {
.name = "rut900:green:signal4",
.gpio = RUT9XX_PCA9539_GPIO_SIGNAL4,
.active_low = 0,
}, {
.name = "rut900:green:signal5",
.gpio = RUT9XX_PCA9539_GPIO_SIGNAL5,
.active_low = 0,
}, {
.name = "rut900:green:status",
.gpio = RUT9XX_PCA9539_GPIO_STATUS_G,
.active_low = 0,
}, {
.name = "rut900:green:wan",
.gpio = RUT9XX_GPIO_LED_WAN,
.active_low = 1,
}, {
.name = "rut900:red:status",
.gpio = RUT9XX_PCA9539_GPIO_STATUS_R,
.active_low = 0,
},
};
static struct gpio_keys_button rut900_gpio_keys[] __initdata = {
{
.desc = "reset",
.type = EV_KEY,
.code = KEY_RESTART,
.debounce_interval = RUT9XX_KEYS_DEBOUNCE_INTERVAL,
.gpio = RUT9XX_GPIO_BTN_RESET,
.active_low = 1,
},
};
static struct i2c_gpio_platform_data rut900_i2c_gpio_data = {
.sda_pin = RUT9XX_GPIO_I2C_SDA,
.scl_pin = RUT9XX_GPIO_I2C_SCK,
.udelay = 10,
};
static struct platform_device rut900_i2c_device = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &rut900_i2c_gpio_data,
},
};
static struct pca953x_platform_data rut9xx_pca9539_data = {
.gpio_base = RUT9XX_PCA9539_GPIO_BASE,
.irq_base = -1,
};
static struct i2c_board_info rut900_i2c_devs[] __initdata = {
{
I2C_BOARD_INFO("pca9539", 0x74),
.platform_data = &rut9xx_pca9539_data,
},
};
static void __init rut900_setup(void)
{
u8 *art = (u8 *) KSEG1ADDR(0x1f030000);
u8 *mac = (u8 *) KSEG1ADDR(0x1f020000);
u8 wlan_mac[ETH_ALEN];
ath79_register_m25p80(NULL);
ath79_register_mdio(1, 0x0);
ath79_switch_data.phy4_mii_en = 1;
ath79_switch_data.phy_poll_mask = 0xf1;
/* LAN */
ath79_eth1_data.duplex = DUPLEX_FULL;
ath79_eth1_data.phy_if_mode = PHY_INTERFACE_MODE_GMII;
ath79_init_mac(ath79_eth1_data.mac_addr, mac, 0);
ath79_register_eth(1);
/* WAN */
ath79_eth0_data.duplex = DUPLEX_FULL;
ath79_eth0_data.mii_bus_dev = &ath79_mdio1_device.dev;
ath79_eth0_data.phy_if_mode = PHY_INTERFACE_MODE_MII;
ath79_eth0_data.phy_mask = BIT(4);
ath79_eth0_data.speed = SPEED_100;
ath79_init_mac(ath79_eth0_data.mac_addr, mac, 1);
ath79_register_eth(0);
platform_device_register(&rut900_i2c_device);
i2c_register_board_info(0, rut900_i2c_devs,
ARRAY_SIZE(rut900_i2c_devs));
/* Disable JTAG (enables GPIO0-3) */
ath79_gpio_function_enable(AR934X_GPIO_FUNC_JTAG_DISABLE);
ath79_register_leds_gpio(-1, ARRAY_SIZE(rut900_leds_gpio),
rut900_leds_gpio);
ath79_register_gpio_keys_polled(-1, RUT9XX_KEYS_POLL_INTERVAL,
ARRAY_SIZE(rut900_gpio_keys),
rut900_gpio_keys);
ath79_wmac_set_ext_lna_gpio(0, RUT9XX_GPIO_EXT_LNA0);
ath79_init_mac(wlan_mac, mac, 2);
ath79_register_wmac(art + RUT9XX_WMAC_CALDATA_OFFSET, wlan_mac);
ath79_register_usb();
}
MIPS_MACHINE(ATH79_MACH_RUT9XX, "RUT900", "Teltonika RUT900", rut900_setup);
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