/*
* 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,
.keymapsize = ARRAY_SIZE(nokia770_keymap)
.delay = 4,
};
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
