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