--- /dev/null
+/*
+ * 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);
projects / openwrt / svn-archive / archive.git / blobdiff