--- /dev/null
+/*
+ * linux/arch/arm/mach-omap1/board-nokia770.c
+ *
+ * Modified from board-generic.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/input.h>
+#include <linux/clk.h>
+
+#include <linux/spi/spi.h>
+#include <linux/spi/ads7846.h>
+
+#include <asm/hardware.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include <asm/arch/gpio.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/usb.h>
+#include <asm/arch/board.h>
+#include <asm/arch/keypad.h>
+#include <asm/arch/common.h>
+#include <asm/arch/dsp_common.h>
+#include <asm/arch/aic23.h>
+#include <asm/arch/gpio.h>
+
+static void __init omap_nokia770_init_irq(void)
+{
+ /* On Nokia 770, the SleepX signal is masked with an
+ * MPUIO line by default. It has to be unmasked for it
+ * to become functional */
+
+ /* SleepX mask direction */
+ omap_writew((omap_readw(0xfffb5008) & ~2), 0xfffb5008);
+ /* Unmask SleepX signal */
+ omap_writew((omap_readw(0xfffb5004) & ~2), 0xfffb5004);
+
+ omap1_init_common_hw();
+ omap_init_irq();
+}
+
+static int nokia770_keymap[] = {
+ KEY(0, 1, GROUP_0 | KEY_UP),
+ KEY(0, 2, GROUP_1 | KEY_F5),
+ KEY(1, 0, GROUP_0 | KEY_LEFT),
+ KEY(1, 1, GROUP_0 | KEY_ENTER),
+ KEY(1, 2, GROUP_0 | KEY_RIGHT),
+ KEY(2, 0, GROUP_1 | KEY_ESC),
+ KEY(2, 1, GROUP_0 | KEY_DOWN),
+ KEY(2, 2, GROUP_1 | KEY_F4),
+ KEY(3, 0, GROUP_2 | KEY_F7),
+ KEY(3, 1, GROUP_2 | KEY_F8),
+ KEY(3, 2, GROUP_2 | KEY_F6),
+ 0
+};
+
+static struct resource nokia770_kp_resources[] = {
+ [0] = {
+ .start = INT_KEYBOARD,
+ .end = INT_KEYBOARD,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
+static struct omap_kp_platform_data nokia770_kp_data = {
+ .rows = 8,
+ .cols = 8,
+ .keymap = nokia770_keymap
+};
+
+static struct platform_device nokia770_kp_device = {
+ .name = "omap-keypad",
+ .id = -1,
+ .dev = {
+ .platform_data = &nokia770_kp_data,
+ },
+ .num_resources = ARRAY_SIZE(nokia770_kp_resources),
+ .resource = nokia770_kp_resources,
+};
+
+static struct platform_device *nokia770_devices[] __initdata = {
+ &nokia770_kp_device,
+};
+
+static struct ads7846_platform_data nokia770_ads7846_platform_data __initdata = {
+ .x_max = 0x0fff,
+ .y_max = 0x0fff,
+ .x_plate_ohms = 180,
+ .pressure_max = 255,
+ .debounce_max = 10,
+ .debounce_tol = 3,
+};
+
+static struct spi_board_info nokia770_spi_board_info[] __initdata = {
+ [0] = {
+ .modalias = "lcd_lph8923",
+ .bus_num = 2,
+ .chip_select = 3,
+ .max_speed_hz = 12000000,
+ },
+ [1] = {
+ .modalias = "ads7846",
+ .bus_num = 2,
+ .chip_select = 0,
+ .max_speed_hz = 2500000,
+ .irq = OMAP_GPIO_IRQ(15),
+ .platform_data = &nokia770_ads7846_platform_data,
+ },
+};
+
+
+/* assume no Mini-AB port */
+
+static struct omap_usb_config nokia770_usb_config __initdata = {
+ .otg = 1,
+ .register_host = 1,
+ .register_dev = 1,
+ .hmc_mode = 16,
+ .pins[0] = 6,
+};
+
+static struct omap_mmc_config nokia770_mmc_config __initdata = {
+ .mmc[0] = {
+ .enabled = 0,
+ .wire4 = 0,
+ .wp_pin = -1,
+ .power_pin = -1,
+ .switch_pin = -1,
+ },
+ .mmc[1] = {
+ .enabled = 0,
+ .wire4 = 0,
+ .wp_pin = -1,
+ .power_pin = -1,
+ .switch_pin = -1,
+ },
+};
+
+static struct omap_board_config_kernel nokia770_config[] = {
+ { OMAP_TAG_USB, NULL },
+ { OMAP_TAG_MMC, &nokia770_mmc_config },
+};
+
+/*
+ * audio power control
+ */
+#define HEADPHONE_GPIO 14
+#define AMPLIFIER_CTRL_GPIO 58
+
+static struct clk *dspxor_ck;
+static DECLARE_MUTEX(audio_pwr_sem);
+/*
+ * audio_pwr_state
+ * +--+-------------------------+---------------------------------------+
+ * |-1|down |power-up request -> 0 |
+ * +--+-------------------------+---------------------------------------+
+ * | 0|up |power-down(1) request -> 1 |
+ * | | |power-down(2) request -> (ignore) |
+ * +--+-------------------------+---------------------------------------+
+ * | 1|up, |power-up request -> 0 |
+ * | |received down(1) request |power-down(2) request -> -1 |
+ * +--+-------------------------+---------------------------------------+
+ */
+static int audio_pwr_state = -1;
+
+/*
+ * audio_pwr_up / down should be called under audio_pwr_sem
+ */
+static void nokia770_audio_pwr_up(void)
+{
+ clk_enable(dspxor_ck);
+
+ /* Turn on codec */
+ tlv320aic23_power_up();
+
+ if (omap_get_gpio_datain(HEADPHONE_GPIO))
+ /* HP not connected, turn on amplifier */
+ omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 1);
+ else
+ /* HP connected, do not turn on amplifier */
+ printk("HP connected\n");
+}
+
+static void codec_delayed_power_down(void *arg)
+{
+ down(&audio_pwr_sem);
+ if (audio_pwr_state == -1)
+ tlv320aic23_power_down();
+ clk_disable(dspxor_ck);
+ up(&audio_pwr_sem);
+}
+
+static DECLARE_WORK(codec_power_down_work, codec_delayed_power_down, NULL);
+
+static void nokia770_audio_pwr_down(void)
+{
+ /* Turn off amplifier */
+ omap_set_gpio_dataout(AMPLIFIER_CTRL_GPIO, 0);
+
+ /* Turn off codec: schedule delayed work */
+ schedule_delayed_work(&codec_power_down_work, HZ / 20); /* 50ms */
+}
+
+void nokia770_audio_pwr_up_request(int stage)
+{
+ down(&audio_pwr_sem);
+ if (audio_pwr_state == -1)
+ nokia770_audio_pwr_up();
+ /* force audio_pwr_state = 0, even if it was 1. */
+ audio_pwr_state = 0;
+ up(&audio_pwr_sem);
+}
+
+void nokia770_audio_pwr_down_request(int stage)
+{
+ down(&audio_pwr_sem);
+ switch (stage) {
+ case 1:
+ if (audio_pwr_state == 0)
+ audio_pwr_state = 1;
+ break;
+ case 2:
+ if (audio_pwr_state == 1) {
+ nokia770_audio_pwr_down();
+ audio_pwr_state = -1;
+ }
+ break;
+ }
+ up(&audio_pwr_sem);
+}
+
+static void __init omap_nokia770_init(void)
+{
+ nokia770_config[0].data = &nokia770_usb_config;
+
+ platform_add_devices(nokia770_devices, ARRAY_SIZE(nokia770_devices));
+ spi_register_board_info(nokia770_spi_board_info,
+ ARRAY_SIZE(nokia770_spi_board_info));
+ omap_board_config = nokia770_config;
+ omap_board_config_size = ARRAY_SIZE(nokia770_config);
+ omap_serial_init();
+ omap_dsp_audio_pwr_up_request = nokia770_audio_pwr_up_request;
+ omap_dsp_audio_pwr_down_request = nokia770_audio_pwr_down_request;
+ dspxor_ck = clk_get(0, "dspxor_ck");
+}
+
+static void __init omap_nokia770_map_io(void)
+{
+ omap1_map_common_io();
+}
+
+MACHINE_START(NOKIA770, "Nokia 770")
+ .phys_io = 0xfff00000,
+ .io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
+ .boot_params = 0x10000100,
+ .map_io = omap_nokia770_map_io,
+ .init_irq = omap_nokia770_init_irq,
+ .init_machine = omap_nokia770_init,
+ .timer = &omap_timer,
+MACHINE_END
projects / linux-2.6-omap-h63xx.git / blobdiff