- 根目录:
- arch
- avr32
- boards
- atngw100
- mrmt.c
/*
* Board-specific setup code for Remote Media Terminal 1 (RMT1)
* add-on board for the ATNGW100 Network Gateway
*
* Copyright (C) 2008 Mediama Technologies
* Based on ATNGW100 Network Gateway (Copyright (C) Atmel)
*
* 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/gpio.h>
#include <linux/init.h>
#include <linux/irq.h>
#include <linux/linkage.h>
#include <linux/platform_device.h>
#include <linux/types.h>
#include <linux/fb.h>
#include <linux/leds.h>
#include <linux/pwm.h>
#include <linux/leds_pwm.h>
#include <linux/input.h>
#include <linux/gpio_keys.h>
#include <linux/atmel_serial.h>
#include <linux/spi/spi.h>
#include <linux/spi/ads7846.h>
#include <video/atmel_lcdc.h>
#include <sound/atmel-ac97c.h>
#include <asm/delay.h>
#include <asm/io.h>
#include <asm/setup.h>
#include <mach/at32ap700x.h>
#include <mach/board.h>
#include <mach/init.h>
#include <mach/portmux.h>
/* Define board-specifoic GPIO assignments */
#define PIN_LCD_BL GPIO_PIN_PA(28)
#define PWM_CH_BL 0 /* Must match with GPIO pin definition */
#define PIN_LCD_DISP GPIO_PIN_PA(31)
#define PIN_AC97_RST_N GPIO_PIN_PA(30)
#define PB_EXTINT_BASE 25
#define TS_IRQ 0
#define PIN_TS_EXTINT GPIO_PIN_PB(PB_EXTINT_BASE+TS_IRQ)
#define PIN_PB_LEFT GPIO_PIN_PB(11)
#define PIN_PB_RIGHT GPIO_PIN_PB(12)
#define PIN_PWR_SW_N GPIO_PIN_PB(14)
#define PIN_PWR_ON GPIO_PIN_PB(13)
#define PIN_ZB_RST_N GPIO_PIN_PA(21)
#define PIN_BT_RST GPIO_PIN_PA(22)
#define PIN_LED_SYS GPIO_PIN_PA(16)
#define PIN_LED_A GPIO_PIN_PA(19)
#define PIN_LED_B GPIO_PIN_PE(19)
#ifdef CONFIG_BOARD_MRMT_LCD_LQ043T3DX0X
/* Sharp LQ043T3DX0x (or compatible) panel */
static struct fb_videomode __initdata lcd_fb_modes[] = {
{
.name = "480x272 @ 59.94Hz",
.refresh = 59.94,
.xres = 480, .yres = 272,
.pixclock = KHZ2PICOS(9000),
.left_margin = 2, .right_margin = 2,
.upper_margin = 3, .lower_margin = 9,
.hsync_len = 41, .vsync_len = 1,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
};
static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
.manufacturer = "SHA",
.monitor = "LQ043T3DX02",
.modedb = lcd_fb_modes,
.modedb_len = ARRAY_SIZE(lcd_fb_modes),
.hfmin = 14915,
.hfmax = 17638,
.vfmin = 53,
.vfmax = 61,
.dclkmax = 9260000,
};
static struct atmel_lcdfb_pdata __initdata rmt_lcdc_data = {
.default_bpp = 24,
.default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
.default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT
| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
| ATMEL_LCDC_INVCLK_NORMAL
| ATMEL_LCDC_MEMOR_BIG),
.lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
.default_monspecs = &lcd_fb_default_monspecs,
.guard_time = 2,
};
#endif
#ifdef CONFIG_BOARD_MRMT_LCD_KWH043GM08
/* Sharp KWH043GM08-Fxx (or compatible) panel */
static struct fb_videomode __initdata lcd_fb_modes[] = {
{
.name = "480x272 @ 59.94Hz",
.refresh = 59.94,
.xres = 480, .yres = 272,
.pixclock = KHZ2PICOS(9000),
.left_margin = 2, .right_margin = 2,
.upper_margin = 3, .lower_margin = 9,
.hsync_len = 41, .vsync_len = 1,
.sync = 0,
.vmode = FB_VMODE_NONINTERLACED,
},
};
static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
.manufacturer = "FOR",
.monitor = "KWH043GM08",
.modedb = lcd_fb_modes,
.modedb_len = ARRAY_SIZE(lcd_fb_modes),
.hfmin = 14915,
.hfmax = 17638,
.vfmin = 53,
.vfmax = 61,
.dclkmax = 9260000,
};
static struct atmel_lcdfb_pdata __initdata rmt_lcdc_data = {
.default_bpp = 24,
.default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
.default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT
| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE
| ATMEL_LCDC_INVCLK_INVERTED
| ATMEL_LCDC_MEMOR_BIG),
.lcd_wiring_mode = ATMEL_LCDC_WIRING_RGB,
.default_monspecs = &lcd_fb_default_monspecs,
.guard_time = 2,
};
#endif
#ifdef CONFIG_BOARD_MRMT_AC97
static struct ac97c_platform_data __initdata ac97c0_data = {
.reset_pin = PIN_AC97_RST_N,
};
#endif
#ifdef CONFIG_BOARD_MRMT_UCB1400_TS
/* NOTE: IRQ assignment relies on kernel module parameter */
static struct platform_device rmt_ts_device = {
.name = "ucb1400_ts",
.id = -1,
};
#endif
#ifdef CONFIG_BOARD_MRMT_BL_PWM
/* PWM LEDs: LCD Backlight, etc */
static struct pwm_lookup pwm_lookup[] = {
PWM_LOOKUP("at91sam9rl-pwm", PWM_CH_BL, "leds_pwm", "ds1",
5000, PWM_POLARITY_INVERSED),
};
static struct led_pwm pwm_leds[] = {
{
.name = "backlight",
.max_brightness = 255,
},
};
static struct led_pwm_platform_data pwm_data = {
.num_leds = ARRAY_SIZE(pwm_leds),
.leds = pwm_leds,
};
static struct platform_device leds_pwm = {
.name = "leds_pwm",
.id = -1,
.dev = {
.platform_data = &pwm_data,
},
};
#endif
#ifdef CONFIG_BOARD_MRMT_ADS7846_TS
static int ads7846_pendown_state(void)
{
return !gpio_get_value( PIN_TS_EXTINT ); /* PENIRQ.*/
}
static struct ads7846_platform_data ads_info = {
.model = 7846,
.keep_vref_on = 0, /* Use external VREF pin */
.vref_delay_usecs = 0,
.vref_mv = 3300, /* VREF = 3.3V */
.settle_delay_usecs = 800,
.penirq_recheck_delay_usecs = 800,
.x_plate_ohms = 750,
.y_plate_ohms = 300,
.pressure_max = 4096,
.debounce_max = 1,
.debounce_rep = 0,
.debounce_tol = (~0),
.get_pendown_state = ads7846_pendown_state,
.filter = NULL,
.filter_init = NULL,
};
static struct spi_board_info spi01_board_info[] __initdata = {
{
.modalias = "ads7846",
.max_speed_hz = 31250*26,
.bus_num = 0,
.chip_select = 1,
.platform_data = &ads_info,
.irq = AT32_EXTINT(TS_IRQ),
},
};
#endif
/* GPIO Keys: left, right, power, etc */
static const struct gpio_keys_button rmt_gpio_keys_buttons[] = {
[0] = {
.type = EV_KEY,
.code = KEY_POWER,
.gpio = PIN_PWR_SW_N,
.active_low = 1,
.desc = "power button",
},
[1] = {
.type = EV_KEY,
.code = KEY_LEFT,
.gpio = PIN_PB_LEFT,
.active_low = 1,
.desc = "left button",
},
[2] = {
.type = EV_KEY,
.code = KEY_RIGHT,
.gpio = PIN_PB_RIGHT,
.active_low = 1,
.desc = "right button",
},
};
static const struct gpio_keys_platform_data rmt_gpio_keys_data = {
.nbuttons = ARRAY_SIZE(rmt_gpio_keys_buttons),
.buttons = (void *) rmt_gpio_keys_buttons,
};
static struct platform_device rmt_gpio_keys = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = (void *) &rmt_gpio_keys_data,
}
};
#ifdef CONFIG_BOARD_MRMT_RTC_I2C
static struct i2c_board_info __initdata mrmt1_i2c_rtc = {
I2C_BOARD_INFO("s35390a", 0x30),
.irq = 0,
};
#endif
static void mrmt_power_off(void)
{
/* PWR_ON=0 will force power off */
gpio_set_value( PIN_PWR_ON, 0 );
}
static int __init mrmt1_init(void)
{
gpio_set_value( PIN_PWR_ON, 1 ); /* Ensure PWR_ON is enabled */
pm_power_off = mrmt_power_off;
/* Setup USARTS (other than console) */
at32_map_usart(2, 1, 0); /* USART 2: /dev/ttyS1, RMT1:DB9M */
at32_map_usart(3, 2, ATMEL_USART_RTS | ATMEL_USART_CTS);
/* USART 3: /dev/ttyS2, RMT1:Wireless, w/ RTS/CTS */
at32_add_device_usart(1);
at32_add_device_usart(2);
/* Select GPIO Key pins */
at32_select_gpio( PIN_PWR_SW_N, AT32_GPIOF_DEGLITCH);
at32_select_gpio( PIN_PB_LEFT, AT32_GPIOF_DEGLITCH);
at32_select_gpio( PIN_PB_RIGHT, AT32_GPIOF_DEGLITCH);
platform_device_register(&rmt_gpio_keys);
#ifdef CONFIG_BOARD_MRMT_RTC_I2C
i2c_register_board_info(0, &mrmt1_i2c_rtc, 1);
#endif
#ifndef CONFIG_BOARD_MRMT_LCD_DISABLE
/* User "alternate" LCDC inferface on Port E & D */
/* NB: exclude LCDC_CC pin, as NGW100 reserves it for other use */
at32_add_device_lcdc(0, &rmt_lcdc_data,
fbmem_start, fbmem_size,
(ATMEL_LCDC_ALT_24BIT | ATMEL_LCDC_PE_DVAL ) );
#endif
#ifdef CONFIG_BOARD_MRMT_AC97
at32_add_device_ac97c(0, &ac97c0_data, AC97C_BOTH);
#endif
#ifdef CONFIG_BOARD_MRMT_ADS7846_TS
/* Select the Touchscreen interrupt pin mode */
at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
irq_set_irq_type(AT32_EXTINT(TS_IRQ), IRQ_TYPE_EDGE_FALLING);
at32_spi_setup_slaves(0,spi01_board_info,ARRAY_SIZE(spi01_board_info));
spi_register_board_info(spi01_board_info,ARRAY_SIZE(spi01_board_info));
#endif
#ifdef CONFIG_BOARD_MRMT_UCB1400_TS
/* Select the Touchscreen interrupt pin mode */
at32_select_periph( GPIO_PIOB_BASE, 1 << (PB_EXTINT_BASE+TS_IRQ),
GPIO_PERIPH_A, AT32_GPIOF_DEGLITCH);
platform_device_register(&rmt_ts_device);
#endif
at32_select_gpio( PIN_LCD_DISP, AT32_GPIOF_OUTPUT );
gpio_request( PIN_LCD_DISP, "LCD_DISP" );
gpio_direction_output( PIN_LCD_DISP, 0 ); /* LCD DISP */
#ifdef CONFIG_BOARD_MRMT_LCD_DISABLE
/* Keep Backlight and DISP off */
at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
gpio_request( PIN_LCD_BL, "LCD_BL" );
gpio_direction_output( PIN_LCD_BL, 0 ); /* Backlight */
#else
gpio_set_value( PIN_LCD_DISP, 1 ); /* DISP asserted first */
#ifdef CONFIG_BOARD_MRMT_BL_PWM
/* Use PWM for Backlight controls */
at32_add_device_pwm(1 << PWM_CH_BL);
pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
platform_device_register(&leds_pwm);
#else
/* Backlight always on */
udelay( 1 );
at32_select_gpio( PIN_LCD_BL, AT32_GPIOF_OUTPUT );
gpio_request( PIN_LCD_BL, "LCD_BL" );
gpio_direction_output( PIN_LCD_BL, 1 );
#endif
#endif
/* Make sure BT and Zigbee modules in reset */
at32_select_gpio( PIN_BT_RST, AT32_GPIOF_OUTPUT );
gpio_request( PIN_BT_RST, "BT_RST" );
gpio_direction_output( PIN_BT_RST, 1 );
/* BT Module in Reset */
at32_select_gpio( PIN_ZB_RST_N, AT32_GPIOF_OUTPUT );
gpio_request( PIN_ZB_RST_N, "ZB_RST_N" );
gpio_direction_output( PIN_ZB_RST_N, 0 );
/* XBee Module in Reset */
#ifdef CONFIG_BOARD_MRMT_WIRELESS_ZB
udelay( 1000 );
/* Unreset the XBee Module */
gpio_set_value( PIN_ZB_RST_N, 1 );
#endif
#ifdef CONFIG_BOARD_MRMT_WIRELESS_BT
udelay( 1000 );
/* Unreset the BT Module */
gpio_set_value( PIN_BT_RST, 0 );
#endif
return 0;
}
arch_initcall(mrmt1_init);
static int __init mrmt1_early_init(void)
{
/* To maintain power-on signal in case boot loader did not already */
at32_select_gpio( PIN_PWR_ON, AT32_GPIOF_OUTPUT );
gpio_request( PIN_PWR_ON, "PIN_PWR_ON" );
gpio_direction_output( PIN_PWR_ON, 1 );
return 0;
}
core_initcall(mrmt1_early_init);