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/*
* arch/ubicom32/mach-ip7k/board-ip7160dpf.c
* Platform initialization for ip7160dpf 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 <http://www.gnu.org/licenses/>.
*
* Ubicom32 implementation derived from (with many thanks):
* arch/m68knommu
* arch/blackfin
* arch/parisc
*/
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <linux/input.h>
#include <asm/board.h>
#include <asm/machdep.h>
#include <asm/ubicom32hid.h>
#include <asm/vdc_tio.h>
#include <asm/audio.h>
/*
* Backlight on the board PD0, hardware PWM
*/
static const struct ubicom32hid_button ip7160dpf_ubicom32hid_buttons[] = {
{
.type = EV_KEY,
.code = KEY_UP,
.bit = 0,
},
{
.type = EV_KEY,
.code = KEY_LEFT,
.bit = 1,
},
{
.type = EV_KEY,
.code = KEY_RIGHT,
.bit = 2,
},
{
.type = EV_KEY,
.code = KEY_DOWN,
.bit = 3,
},
{
.type = EV_KEY,
.code = KEY_ENTER,
.bit = 4,
},
{
.type = EV_KEY,
.code = KEY_MENU,
.bit = 5,
},
{
.type = EV_KEY,
.code = KEY_ESC,
.bit = 7,
},
};
static const struct ubicom32hid_ir ip7160dpf_ubicom32hid_ircodes[] = {
{
.type = EV_KEY,
.code = KEY_UP,
.ir_code = 0xF807916E
},
{
.type = EV_KEY,
.code = KEY_DOWN,
.ir_code = 0xF20D916E
},
{
.type = EV_KEY,
.code = KEY_LEFT,
.ir_code = 0xF609916E
},
{
.type = EV_KEY,
.code = KEY_RIGHT,
.ir_code = 0xF40B916E
},
{
.type = EV_KEY,
.code = KEY_ENTER,
.ir_code = 0xF50A916E
},
{ /* rotate */
.type = EV_KEY,
.code = KEY_FN_F1,
.ir_code = 0xF906916E
},
{
.type = EV_KEY,
.code = KEY_MENU,
.ir_code = 0xF708916E
},
{ /* font size */
.type = EV_KEY,
.code = KEY_FN_F2,
.ir_code = 0xF30C916E
},
{
.type = EV_KEY,
.code = KEY_ESC,
.ir_code = 0xF10E916E
},
{
.type = EV_KEY,
.code = KEY_VOLUMEUP,
.ir_code = 0xF00F916E
},
{
.type = EV_KEY,
.code = KEY_VOLUMEDOWN,
.ir_code = 0xED12916E
},
{
.type = EV_KEY,
.code = KEY_MUTE,
.ir_code = 0xEA15916E
},
{
.type = EV_KEY,
.code = KEY_INFO,
.ir_code = 0xEF10916E
},
{ /* Like */
.type = EV_KEY,
.code = KEY_FN_F3,
.ir_code = 0xEE11916E
},
{ /* Dislike */
.type = EV_KEY,
.code = KEY_FN_F4,
.ir_code = 0xEB14916E
},
{
.type = EV_KEY,
.code = KEY_POWER,
.ir_code = 0xFD02916E
},
};
static struct ubicom32hid_platform_data ip7160dpf_ubicom32hid_platform_data = {
.gpio_reset = GPIO_RI_5,
.gpio_reset_polarity = 0,
.type = UBICOM32HID_BL_TYPE_PWM,
.invert = 0,
.default_intensity = 128,
.buttons = ip7160dpf_ubicom32hid_buttons,
.nbuttons = ARRAY_SIZE(ip7160dpf_ubicom32hid_buttons),
.ircodes = ip7160dpf_ubicom32hid_ircodes,
.nircodes = ARRAY_SIZE(ip7160dpf_ubicom32hid_ircodes),
};
/*
* Devices on the I2C bus
* This board has a "bus 2" which is isolated from the main bus by U47
* and pin RI0. It should be safe to always enable bus 2 by setting
* RI0 to low, however, it should be noted that on all existing configurations
* of this board, U49 and U51 are not populated.
*/
static struct i2c_board_info __initdata ip7160dpf_i2c_board_info[] = {
/*
* U37, CS4350 DAC, address 0x4B, bus 2
* THIS ENTRY MUST BE FIRST
*/
{
.type = "cs4350",
.addr = 0x4B,
}
/*
* U24, ubicom32hid
*/
{
.type = "ubicom32hid",
.addr = 0x08,
.platform_data = &ip7160dpf_ubicom32hid_platform_data,
},
/*
* U49, ISL29001 Ambient Light Sensor, address 0x44, bus 2 (may not be stuffed)
*/
/*
* U51, S35390A RTC, address 0x30, bus 2 (may not be stuffed)
*/
#ifdef CONFIG_RTC_DRV_S35390A
{
.type = "s35390a",
.addr = 0x30,
},
#endif
};
/*
* I2C bus on the board, SDA PI1, SCL PI2
*/
static struct i2c_gpio_platform_data ip7160dpf_i2c_data = {
.sda_pin = GPIO_RI_1,
.scl_pin = GPIO_RI_2,
.sda_is_open_drain = 0,
.scl_is_open_drain = 0,
.scl_is_output_only = 1,
.udelay = 6,
};
static struct platform_device ip7160dpf_i2c_device = {
.name = "i2c-gpio",
.id = 0,
.dev = {
.platform_data = &ip7160dpf_i2c_data,
},
};
/*
* List of all devices in our system
*/
static struct platform_device *ip7160dpf_devices[] __initdata = {
&ip7160dpf_i2c_device,
};
/*
* ip7160dpf_power_off
* Called to turn the power off for this board
*/
static void ip7160dpf_power_off(void)
{
gpio_set_value(GPIO_RF_14, 0);
}
/*
* ip7160dpf_init
* Called to add the devices which we have on this board
*/
static int __init ip7160dpf_init(void)
{
int ret;
struct platform_device *audio_dev;
ubi_gpio_init();
/*
* Hold the POWER_HOLD line
*/
ret = gpio_request(GPIO_RF_14, "POWER_HOLD");
if (ret) {
printk(KERN_ERR "%s: could not request POWER_HOLD GPIO\n", __FUNCTION__);
}
gpio_direction_output(GPIO_RF_14, 1);
mach_power_off = ip7160dpf_power_off;
/*
* USB SEL_HOST_USB line
*/
ret = gpio_request(GPIO_RI_13, "SEL_HOST_USB");
if (ret) {
printk(KERN_ERR "%s: could not request SEL_HOST_USB GPIO\n", __FUNCTION__);
}
gpio_direction_output(GPIO_RI_13, 0);
/*
* USB/DAC nRESET line
*/
ret = gpio_request(GPIO_RI_3, "USB_DAC_nRESET");
if (ret) {
printk(KERN_ERR "%s: could not request USB_DAC_nRESET GPIO\n", __FUNCTION__);
}
gpio_direction_output(GPIO_RI_3, 0);
udelay(1);
gpio_direction_output(GPIO_RI_3, 1);
/*
* I2C BUS2 Disable line
*/
ret = gpio_request(GPIO_RI_0, "DISABLE_BUS2");
if (ret) {
printk(KERN_ERR "%s: could not request DISABLE_BUS2 GPIO\n", __FUNCTION__);
}
gpio_direction_output(GPIO_RI_0, 0);
vdc_tio_init();
printk(KERN_INFO "%s: registering device resources\n", __FUNCTION__);
platform_add_devices(ip7160dpf_devices, ARRAY_SIZE(ip7160dpf_devices));
/*
* Allocate the audio driver if we can
*/
audio_dev = audio_device_alloc("snd-ubi32-cs4350", "audio-i2sout", 0);
if (audio_dev) {
ip7160dpf_i2c_board_info[0].platform_data = audio_dev;
}
printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
i2c_register_board_info(0, ip7160dpf_i2c_board_info, ARRAY_SIZE(ip7160dpf_i2c_board_info));
return 0;
}
arch_initcall(ip7160dpf_init);
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