--- /dev/null
+/*
+ * arch/ubicom32/mach-ip7k/board-ip7500iap.c
+ * Support for IP7500 Internet Audio Player
+ *
+ * This file supports the IP7500 Internet Audio Player:
+ * 8007-1110 Rev 1.0
+ *
+ * (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/>.
+ */
+#include <linux/device.h>
+#include <linux/gpio.h>
+#include <asm/board.h>
+
+#include <linux/delay.h>
+
+#include <linux/platform_device.h>
+#include <asm/audio.h>
+#include <linux/i2c.h>
+#include <linux/i2c-gpio.h>
+
+#include <asm/ubicom32sd.h>
+#include <asm/sd_tio.h>
+
+#include <asm/ubicom32bl.h>
+
+#include <asm/machdep.h>
+
+/******************************************************************************
+ * SD/IO Port F (Slot 1) platform data
+ */
+static struct resource ip7500iap_portf_sd_resources[] = {
+ /*
+ * Send IRQ
+ */
+ [0] = {
+ /*
+ * The init routine will query the devtree and fill this in
+ */
+ .flags = IORESOURCE_IRQ,
+ },
+
+ /*
+ * Receive IRQ
+ */
+ [1] = {
+ /*
+ * The init routine will query the devtree and fill this in
+ */
+ .flags = IORESOURCE_IRQ,
+ },
+
+ /*
+ * Memory Mapped Registers
+ */
+ [2] = {
+ /*
+ * The init routine will query the devtree and fill this in
+ */
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct ubicom32sd_card ip7500iap_portf_sd_cards[] = {
+ [0] = {
+ .pin_wp = GPIO_RF_7,
+ .wp_polarity = 1,
+ .pin_pwr = GPIO_RF_8,
+ .pin_cd = GPIO_RF_6,
+ },
+};
+
+static struct ubicom32sd_platform_data ip7500iap_portf_sd_platform_data = {
+ .ncards = 1,
+ .cards = ip7500iap_portf_sd_cards,
+};
+
+static struct platform_device ip7500iap_portf_sd_device = {
+ .name = "ubicom32sd",
+ .id = 0,
+ .resource = ip7500iap_portf_sd_resources,
+ .num_resources = ARRAY_SIZE(ip7500iap_portf_sd_resources),
+ .dev = {
+ .platform_data = &ip7500iap_portf_sd_platform_data,
+ },
+
+};
+
+/*
+ * ip7500iap_portf_sd_init
+ */
+static void ip7500iap_portf_sd_init(void)
+{
+ /*
+ * Check the device tree for the sd_tio
+ */
+ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portf_sd");
+ if (!sd_node) {
+ printk(KERN_INFO "PortF SDTIO not found\n");
+ return;
+ }
+
+ /*
+ * Fill in the resources and platform data from devtree information
+ */
+ ip7500iap_portf_sd_resources[0].start = sd_node->dn.sendirq;
+ ip7500iap_portf_sd_resources[1].start = sd_node->dn.recvirq;
+ ip7500iap_portf_sd_resources[2].start = (u32_t)&(sd_node->regs);
+ ip7500iap_portf_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
+
+ platform_device_register(&ip7500iap_portf_sd_device);
+}
+
+/******************************************************************************
+ * SD/IO Port B (Slot 2) platform data
+ */
+static struct resource ip7500iap_portb_sd_resources[] = {
+ /*
+ * Send IRQ
+ */
+ [0] = {
+ /*
+ * The init routine will query the devtree and fill this in
+ */
+ .flags = IORESOURCE_IRQ,
+ },
+
+ /*
+ * Receive IRQ
+ */
+ [1] = {
+ /*
+ * The init routine will query the devtree and fill this in
+ */
+ .flags = IORESOURCE_IRQ,
+ },
+
+ /*
+ * Memory Mapped Registers
+ */
+ [2] = {
+ /*
+ * The init routine will query the devtree and fill this in
+ */
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct ubicom32sd_card ip7500iap_portb_sd_cards[] = {
+ [0] = {
+ .pin_wp = GPIO_RB_13,
+ .wp_polarity = 1,
+ .pin_pwr = GPIO_RB_11,
+ .pin_cd = GPIO_RB_12,
+ },
+};
+
+static struct ubicom32sd_platform_data ip7500iap_portb_sd_platform_data = {
+ .ncards = 1,
+ .cards = ip7500iap_portb_sd_cards,
+};
+
+static struct platform_device ip7500iap_portb_sd_device = {
+ .name = "ubicom32sd",
+ .id = 1,
+ .resource = ip7500iap_portb_sd_resources,
+ .num_resources = ARRAY_SIZE(ip7500iap_portb_sd_resources),
+ .dev = {
+ .platform_data = &ip7500iap_portb_sd_platform_data,
+ },
+
+};
+
+/*
+ * ip7500iap_portb_sd_init
+ */
+static void ip7500iap_portb_sd_init(void)
+{
+ /*
+ * Check the device tree for the sd_tio
+ */
+ struct sd_tio_node *sd_node = (struct sd_tio_node *)devtree_find_node("portb_sd");
+ if (!sd_node) {
+ printk(KERN_INFO "PortB SDTIO not found\n");
+ return;
+ }
+
+ /*
+ * Fill in the resources and platform data from devtree information
+ */
+ ip7500iap_portb_sd_resources[0].start = sd_node->dn.sendirq;
+ ip7500iap_portb_sd_resources[1].start = sd_node->dn.recvirq;
+ ip7500iap_portb_sd_resources[2].start = (u32_t)&(sd_node->regs);
+ ip7500iap_portb_sd_resources[2].end = (u32_t)&(sd_node->regs) + sizeof(sd_node->regs);
+
+ platform_device_register(&ip7500iap_portb_sd_device);
+}
+
+/******************************************************************************
+ * Touch controller
+ *
+ * Connected via I2C bus, interrupt on PA6
+ */
+#include <linux/i2c/tsc2007.h>
+
+/*
+ * ip7500iap_tsc2007_exit_platform_hw
+ */
+static void ip7500iap_tsc2007_exit_platform_hw(void)
+{
+ UBICOM32_IO_PORT(RA)->ctl0 &= ~(0x03 << 19);
+ gpio_free(GPIO_RA_6);
+}
+
+/*
+ * ip7500iap_tsc2007_init_platform_hw
+ */
+static int ip7500iap_tsc2007_init_platform_hw(void)
+{
+ int res = gpio_request(GPIO_RA_6, "TSC2007_IRQ");
+ if (res) {
+ return res;
+ }
+
+ UBICOM32_IO_PORT(RA)->ctl0 &= ~(0x03 << 19);
+ UBICOM32_IO_PORT(RA)->ctl0 |= (0x02 << 19);
+ return 0;
+}
+
+/*
+ * ip7500iap_tsc2007_get_pendown_state
+ */
+static int ip7500iap_tsc2007_get_pendown_state(void)
+{
+ return !gpio_get_value(GPIO_RA_6);
+}
+
+static struct tsc2007_platform_data ip7500iap_tsc2007_data = {
+ .model = 2007,
+ .x_plate_ohms = 350,
+ .get_pendown_state = ip7500iap_tsc2007_get_pendown_state,
+ .init_platform_hw = ip7500iap_tsc2007_init_platform_hw,
+ .exit_platform_hw = ip7500iap_tsc2007_exit_platform_hw,
+};
+
+/******************************************************************************
+ * i2c devices
+ *
+ * DO NOT CHANGE THE ORDER HERE unless you know how this works. There
+ * are hardcoded indicies which refer to the order of drivers listed here.
+ */
+static struct i2c_board_info __initdata ip7500iap_i2c_board_info[] = {
+ /*
+ * U6, CS4350 DAC, address 0x4B
+ */
+ {
+ .type = "cs4350",
+ .addr = 0x4B,
+ },
+
+ /*
+ * U20, S35390A RTC, address 0x30
+ */
+ {
+ .type = "s35390a",
+ .addr = 0x30,
+ },
+
+ /*
+ * U9, TSC2007 Touch screen controller, address 0x49, irq RA6
+ */
+ {
+ .type = "tsc2007",
+ .addr = 0x49,
+ .irq = 46,
+ .platform_data = &ip7500iap_tsc2007_data,
+ },
+};
+
+/*
+ * I2C bus on the board, SDA PE4, SCL PE5
+ */
+static struct i2c_gpio_platform_data ip7500iap_i2c_data = {
+ .sda_pin = GPIO_RF_14,
+ .scl_pin = GPIO_RF_13,
+ .sda_is_open_drain = 0,
+ .scl_is_open_drain = 0,
+ .udelay = 50,
+};
+
+static struct platform_device ip7500iap_i2c_device = {
+ .name = "i2c-gpio",
+ .id = 0,
+ .dev = {
+ .platform_data = &ip7500iap_i2c_data,
+ },
+};
+
+/******************************************************************************
+ * Backlight on the board PD0, hardware PWM
+ */
+static struct ubicom32bl_platform_data ip7500iap_backlight_data = {
+ .type = UBICOM32BL_TYPE_PWM,
+ .pwm_channel = 2,
+ .pwm_prescale = 15,
+ .pwm_period = 60,
+ .default_intensity = 0x80,
+};
+
+static struct platform_device ip7500iap_backlight_device = {
+ .name = "ubicom32bl",
+ .id = -1,
+ .dev = {
+ .platform_data = &ip7500iap_backlight_data,
+ },
+};
+
+/******************************************************************************
+ * Devices on this board
+ */
+static struct platform_device *ip7500iap_devices[] __initdata = {
+ &ip7500iap_i2c_device,
+ &ip7500iap_backlight_device,
+};
+
+/*
+ * ip7500iap_power_off
+ * Called to turn the power off for this board
+ */
+static void ip7500iap_power_off(void)
+{
+ gpio_set_value(GPIO_RF_11, 0);
+}
+
+/*
+ * ip7500iap_init
+ * Called to add the devices which we have on this board
+ */
+static int __init ip7500iap_init(void)
+{
+ struct platform_device *audio_dev;
+ struct platform_device *audio_dev2;
+ int ret;
+
+ board_init();
+
+ ubi_gpio_init();
+
+ /*
+ * Hold the POWER_HOLD line
+ */
+ ret = gpio_request(GPIO_RF_11, "POWER_HOLD");
+ if (ret) {
+ printk(KERN_ERR "%s: could not request POWER_HOLD GPIO\n", __FUNCTION__);
+ }
+ gpio_direction_output(GPIO_RF_11, 1);
+ mach_power_off = ip7500iap_power_off;
+
+ /*
+ * DAC nRESET line
+ */
+ ret = gpio_request(GPIO_RE_7, "DAC_nRESET");
+ if (ret) {
+ printk(KERN_ERR "%s: could not request DAC_nRESET GPIO\n", __FUNCTION__);
+ }
+ gpio_direction_output(GPIO_RE_7, 0);
+ udelay(1);
+ gpio_set_value(GPIO_RE_7, 1);
+
+ /*
+ * Bring up any SDIO slots
+ */
+ ip7500iap_portb_sd_init();
+ ip7500iap_portf_sd_init();
+
+ /*
+ * Bring up audio devices
+ */
+ platform_add_devices(ip7500iap_devices, ARRAY_SIZE(ip7500iap_devices));
+
+ audio_dev = audio_device_alloc("snd-ubi32-cs4350", "audio", "audio-i2sout", 0);
+ if (audio_dev) {
+ ip7500iap_i2c_board_info[0].platform_data = audio_dev;
+ }
+
+ audio_dev2 = audio_device_alloc("snd-ubi32-generic", "audio", "audio-spdifout", 0);
+ if (audio_dev2) {
+ platform_device_register(audio_dev2);
+ }
+
+ printk(KERN_INFO "%s: registering i2c resources\n", __FUNCTION__);
+ i2c_register_board_info(0, ip7500iap_i2c_board_info, ARRAY_SIZE(ip7500iap_i2c_board_info));
+
+ printk(KERN_INFO "IP7500 Internet Audio Player\n");
+
+ return 0;
+}
+
+arch_initcall(ip7500iap_init);
projects / openwrt / svn-archive / archive.git / blobdiff