/*
* arch/ubicom32/mach-ip7k/board-ip7160rgw.c
* Platform initialization for ip7160rgw board.
*
* (C) Copyright 2009, Ubicom, Inc.
*
* This file is part of the Ubicom32 Linux Kernel Port.
*
* The Ubicom32 Linux Kernel Port is free software: you can redistribute
* it and/or modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, either version 2 of the
* License, or (at your option) any later version.
*
* The Ubicom32 Linux Kernel Port is distributed in the hope that it
* will be useful, but WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Ubicom32 Linux Kernel Port. If not,
* see .
*
* Ubicom32 implementation derived from (with many thanks):
* arch/m68knommu
* arch/blackfin
* arch/parisc
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#ifdef CONFIG_SERIAL_UBI32_SERDES
#include
#endif
#include
#include
#ifdef CONFIG_IP7160RGWLCD
#include
#include
/*
* LCD Adapter board 8007-092x support
*
* Touch controller
*
* Connected via I2C bus, interrupt on PA6
*/
#include
/*
* ip7160rgwlcd_tsc2007_exit_platform_hw
*/
static void ip7160rgwlcd_tsc2007_exit_platform_hw(void)
{
UBICOM32_IO_PORT(RA)->ctl0 &= ~(0x03 << 17);
gpio_free(GPIO_RA_5);
}
/*
* ip7160rgwlcd_tsc2007_init_platform_hw
*/
static int ip7160rgwlcd_tsc2007_init_platform_hw(void)
{
int res = gpio_request(GPIO_RA_5, "TSC2007_IRQ");
if (res) {
return res;
}
UBICOM32_IO_PORT(RA)->ctl0 &= ~(0x03 << 17);
UBICOM32_IO_PORT(RA)->ctl0 |= (0x02 << 17);
return 0;
}
/*
* ip7160rgwlcd_tsc2007_get_pendown_state
*/
static int ip7160rgwlcd_tsc2007_get_pendown_state(void)
{
return !gpio_get_value(GPIO_RA_5);
}
static struct tsc2007_platform_data ip7160rgwlcd_tsc2007_data = {
.model = 2007,
.x_plate_ohms = 350,
.get_pendown_state = ip7160rgwlcd_tsc2007_get_pendown_state,
.init_platform_hw = ip7160rgwlcd_tsc2007_init_platform_hw,
.exit_platform_hw = ip7160rgwlcd_tsc2007_exit_platform_hw,
};
/******************************************************************************
* I2C bus on the board, SDA PI14, SCL PI13
*/
static struct i2c_gpio_platform_data ip7160rgwlcd_i2c_data = {
.sda_pin = GPIO_RI_14,
.scl_pin = GPIO_RI_13,
.sda_is_open_drain = 0,
.scl_is_open_drain = 0,
.udelay = 50,
};
static struct platform_device ip7160rgwlcd_i2c_device = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &ip7160rgwlcd_i2c_data,
},
};
static struct i2c_board_info __initdata ip7160rgwlcd_i2c_board_info[] = {
{
.type = "tsc2007",
.addr = 0x48,
.irq = 45, // RA5
.platform_data = &ip7160rgwlcd_tsc2007_data,
},
};
#endif
/*
* SPI bus over GPIO for Gigabit Ethernet Switch
* U58:
* MOSI PE0
* MISO PE1
* CLK PE3
* CS PE2
*/
static struct ubicom32_spi_gpio_platform_data ip7160rgw_spi_gpio_data = {
.pin_mosi = GPIO_RE_0,
.pin_miso = GPIO_RE_1,
.pin_clk = GPIO_RE_3,
.bus_num = 0, // We'll call this SPI bus 0
.num_chipselect = 1, // only one device on this SPI bus
.clk_default = 1,
};
static struct platform_device ip7160rgw_spi_gpio_device = {
.name = "ubicom32-spi-gpio",
.id = 0,
.dev = {
.platform_data = &ip7160rgw_spi_gpio_data,
},
};
static struct ubicom32_spi_gpio_controller_data ip7160rgw_bcm539x_controller_data = {
.pin_cs = GPIO_RE_2,
};
static struct switch_core_platform_data ip7160rgw_bcm539x_platform_data = {
.flags = SWITCH_DEV_FLAG_HW_RESET,
.pin_reset = GPIO_RE_4,
.name = "bcm539x",
};
static struct spi_board_info ip7160rgw_spi_board_info[] = {
{
.modalias = "bcm539x-spi",
.bus_num = 0,
.chip_select = 0,
.max_speed_hz = 2000000,
.platform_data = &ip7160rgw_bcm539x_platform_data,
.controller_data = &ip7160rgw_bcm539x_controller_data,
.mode = SPI_MODE_3,
}
};
/*
* LEDs
*
* WLAN1 PD0 (PWM capable)
* WLAN2 PD1
* USB2.0 PD2
* Status PD3
* WPS PD4
*
* TODO: check triggers, are they generic?
*/
static struct gpio_led ip7160rgw_gpio_leds[] = {
{
.name = "d53:green:WLAN1",
.default_trigger = "WLAN1",
.gpio = GPIO_RD_0,
.active_low = 1,
},
{
.name = "d54:green:WLAN2",
.default_trigger = "WLAN2",
.gpio = GPIO_RD_1,
.active_low = 1,
},
{
.name = "d55:green:USB",
.default_trigger = "USB",
.gpio = GPIO_RD_2,
.active_low = 1,
},
{
.name = "d56:green:Status",
.default_trigger = "Status",
.gpio = GPIO_RD_3,
.active_low = 1,
},
{
.name = "d57:green:WPS",
.default_trigger = "WPS",
.gpio = GPIO_RD_4,
.active_low = 1,
},
};
static struct gpio_led_platform_data ip7160rgw_gpio_led_platform_data = {
.num_leds = 5,
.leds = ip7160rgw_gpio_leds,
};
static struct platform_device ip7160rgw_gpio_leds_device = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &ip7160rgw_gpio_led_platform_data,
},
};
/*
* Use ubicom32input driver to monitor the various pushbuttons on this board.
*
* WPS PD5
* FACT_DEFAULT PD6
*
* TODO: pick some ubicom understood EV_xxx define for WPS and Fact Default
*/
static struct ubicom32input_button ip7160rgw_ubicom32input_buttons[] = {
{
.type = EV_KEY,
.code = KEY_FN_F1,
.gpio = GPIO_RD_5,
.desc = "WPS",
.active_low = 1,
},
{
.type = EV_KEY,
.code = KEY_FN_F2,
.gpio = GPIO_RD_6,
.desc = "Factory Default",
.active_low = 1,
},
};
static struct ubicom32input_platform_data ip7160rgw_ubicom32input_data = {
.buttons = ip7160rgw_ubicom32input_buttons,
.nbuttons = ARRAY_SIZE(ip7160rgw_ubicom32input_buttons),
};
static struct platform_device ip7160rgw_ubicom32input_device = {
.name = "ubicom32input",
.id = -1,
.dev = {
.platform_data = &ip7160rgw_ubicom32input_data,
},
};
#ifdef CONFIG_SERIAL_UBI32_SERDES
static struct resource ip7160rgw_ubicom32_suart_resources[] = {
{
.start = RE,
.end = RE,
.flags = IORESOURCE_MEM,
},
{
.start = PORT_OTHER_INT(RE),
.end = PORT_OTHER_INT(RE),
.flags = IORESOURCE_IRQ,
},
{
.start = 250000000,
.end = 250000000,
.flags = UBICOM32_SUART_IORESOURCE_CLOCK,
},
};
static struct platform_device ip7160rgw_ubicom32_suart_device = {
.name = "ubicom32suart",
.id = -1,
.num_resources = ARRAY_SIZE(ip7160rgw_ubicom32_suart_resources),
.resource = ip7160rgw_ubicom32_suart_resources,
};
#endif
/*
* List of all devices in our system
*/
static struct platform_device *ip7160rgw_devices[] __initdata = {
#ifdef CONFIG_SERIAL_UBI32_SERDES
&ip7160rgw_ubicom32_suart_device,
#endif
&ip7160rgw_ubicom32input_device,
&ip7160rgw_gpio_leds_device,
&ip7160rgw_spi_gpio_device,
#ifdef CONFIG_IP7160RGWLCD
&ip7160rgwlcd_i2c_device,
#endif
};
/*
* ip7160rgw_init
* Called to add the devices which we have on this board
*/
static int __init ip7160rgw_init(void)
{
board_init();
/*
* Rev 1.2 boards have spi in a different place than 1.1/1.0
*/
if (strcmp(board_get_revision(), "1.2") == 0) {
ip7160rgw_spi_gpio_data.pin_mosi = GPIO_RD_7;
}
ubi_gpio_init();
/*
* Reserve switch SPI CS on behalf on switch driver
*/
if (gpio_request(ip7160rgw_bcm539x_controller_data.pin_cs, "switch-bcm539x-cs")) {
printk(KERN_WARNING "Could not request cs of switch SPI I/F\n");
return -EIO;
}
gpio_direction_output(ip7160rgw_bcm539x_controller_data.pin_cs, 1);
printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
platform_add_devices(ip7160rgw_devices, ARRAY_SIZE(ip7160rgw_devices));
printk(KERN_INFO "%s: registering SPI resources\n", __FUNCTION__);
spi_register_board_info(ip7160rgw_spi_board_info, ARRAY_SIZE(ip7160rgw_spi_board_info));
#ifdef CONFIG_IP7160RGWLCD
printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
i2c_register_board_info(0, ip7160rgwlcd_i2c_board_info, ARRAY_SIZE(ip7160rgwlcd_i2c_board_info));
printk(KERN_INFO "IP7160 RGW + LCD\n");
#else
printk(KERN_INFO "IP7160 RGW\n");
#endif
return 0;
}
arch_initcall(ip7160rgw_init);