diff options
Diffstat (limited to 'target/linux/ubicom32/files/arch/ubicom32/mach-ip7k/board-ip7160dpf.c')
| -rw-r--r-- | target/linux/ubicom32/files/arch/ubicom32/mach-ip7k/board-ip7160dpf.c | 326 |
1 files changed, 326 insertions, 0 deletions
diff --git a/target/linux/ubicom32/files/arch/ubicom32/mach-ip7k/board-ip7160dpf.c b/target/linux/ubicom32/files/arch/ubicom32/mach-ip7k/board-ip7160dpf.c new file mode 100644 index 0000000000..7f4e4f3e45 --- /dev/null +++ b/target/linux/ubicom32/files/arch/ubicom32/mach-ip7k/board-ip7160dpf.c @@ -0,0 +1,326 @@ +/* + * 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); |