eaf858a988
From: Nicolas Ferre <nicolas.ferre@rfo.atmel.com> On the at92sam9263ek board, tell the input subsystem about the buttons. This patch is taken from Andrew Victor's at91 patchset, then updated to match the latest kernel code and to use labels printed on the board. Also update the at91sam9261ek buttons to cope with input changes. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Acked-by: Andrew Victor <linux@maxim.org.za> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
391 lines
8.8 KiB
C
391 lines
8.8 KiB
C
/*
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* linux/arch/arm/mach-at91/board-sam9263ek.c
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*
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* Copyright (C) 2005 SAN People
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* Copyright (C) 2007 Atmel Corporation.
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/spi/spi.h>
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#include <linux/spi/ads7846.h>
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#include <linux/fb.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <video/atmel_lcdc.h>
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#include <asm/hardware.h>
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#include <asm/setup.h>
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#include <asm/mach-types.h>
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#include <asm/irq.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/irq.h>
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#include <asm/arch/board.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/at91sam926x_mc.h>
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#include "generic.h"
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/*
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* Serial port configuration.
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* 0 .. 2 = USART0 .. USART2
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* 3 = DBGU
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*/
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static struct at91_uart_config __initdata ek_uart_config = {
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.console_tty = 0, /* ttyS0 */
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.nr_tty = 2,
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.tty_map = { 3, 0, -1, -1, } /* ttyS0, ..., ttyS3 */
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};
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static void __init ek_map_io(void)
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{
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/* Initialize processor: 16.367 MHz crystal */
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at91sam9263_initialize(16367660);
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/* Setup the serial ports and console */
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at91_init_serial(&ek_uart_config);
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}
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static void __init ek_init_irq(void)
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{
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at91sam9263_init_interrupts(NULL);
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}
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/*
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* USB Host port
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*/
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static struct at91_usbh_data __initdata ek_usbh_data = {
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.ports = 2,
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.vbus_pin = { AT91_PIN_PA24, AT91_PIN_PA21 },
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};
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/*
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* USB Device port
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*/
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static struct at91_udc_data __initdata ek_udc_data = {
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.vbus_pin = AT91_PIN_PA25,
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.pullup_pin = 0, /* pull-up driven by UDC */
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};
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/*
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* ADS7846 Touchscreen
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*/
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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static int ads7843_pendown_state(void)
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{
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return !at91_get_gpio_value(AT91_PIN_PA15); /* Touchscreen PENIRQ */
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}
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static struct ads7846_platform_data ads_info = {
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.model = 7843,
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.x_min = 150,
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.x_max = 3830,
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.y_min = 190,
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.y_max = 3830,
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.vref_delay_usecs = 100,
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.x_plate_ohms = 450,
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.y_plate_ohms = 250,
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.pressure_max = 15000,
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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 = ads7843_pendown_state,
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};
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static void __init ek_add_device_ts(void)
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{
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at91_set_B_periph(AT91_PIN_PA15, 1); /* External IRQ1, with pullup */
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at91_set_gpio_input(AT91_PIN_PA31, 1); /* Touchscreen BUSY signal */
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}
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#else
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static void __init ek_add_device_ts(void) {}
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#endif
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/*
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* SPI devices.
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*/
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static struct spi_board_info ek_spi_devices[] = {
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#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
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{ /* DataFlash card */
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.modalias = "mtd_dataflash",
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.chip_select = 0,
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.max_speed_hz = 15 * 1000 * 1000,
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.bus_num = 0,
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},
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#endif
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#if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
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{
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.modalias = "ads7846",
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.chip_select = 3,
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.max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
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.bus_num = 0,
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.platform_data = &ads_info,
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.irq = AT91SAM9263_ID_IRQ1,
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},
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#endif
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};
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/*
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* MCI (SD/MMC)
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*/
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static struct at91_mmc_data __initdata ek_mmc_data = {
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.wire4 = 1,
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.det_pin = AT91_PIN_PE18,
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.wp_pin = AT91_PIN_PE19,
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// .vcc_pin = ... not connected
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};
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/*
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* MACB Ethernet device
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*/
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static struct at91_eth_data __initdata ek_macb_data = {
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.phy_irq_pin = AT91_PIN_PE31,
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.is_rmii = 1,
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};
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/*
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* NAND flash
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*/
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static struct mtd_partition __initdata ek_nand_partition[] = {
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{
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.name = "Partition 1",
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.offset = 0,
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.size = 64 * 1024 * 1024,
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},
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{
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.name = "Partition 2",
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.offset = 64 * 1024 * 1024,
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.size = MTDPART_SIZ_FULL,
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},
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};
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static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
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{
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*num_partitions = ARRAY_SIZE(ek_nand_partition);
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return ek_nand_partition;
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}
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static struct at91_nand_data __initdata ek_nand_data = {
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.ale = 21,
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.cle = 22,
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// .det_pin = ... not connected
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.rdy_pin = AT91_PIN_PA22,
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.enable_pin = AT91_PIN_PD15,
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.partition_info = nand_partitions,
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#if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
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.bus_width_16 = 1,
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#else
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.bus_width_16 = 0,
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#endif
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};
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/*
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* LCD Controller
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*/
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#if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
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static struct fb_videomode at91_tft_vga_modes[] = {
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{
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.name = "TX09D50VM1CCA @ 60",
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.refresh = 60,
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.xres = 240, .yres = 320,
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.pixclock = KHZ2PICOS(4965),
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.left_margin = 1, .right_margin = 33,
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.upper_margin = 1, .lower_margin = 0,
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.hsync_len = 5, .vsync_len = 1,
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.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
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.vmode = FB_VMODE_NONINTERLACED,
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},
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};
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static struct fb_monspecs at91fb_default_monspecs = {
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.manufacturer = "HIT",
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.monitor = "TX09D70VM1CCA",
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.modedb = at91_tft_vga_modes,
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.modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
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.hfmin = 15000,
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.hfmax = 64000,
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.vfmin = 50,
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.vfmax = 150,
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};
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#define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
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| ATMEL_LCDC_DISTYPE_TFT \
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| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
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static void at91_lcdc_power_control(int on)
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{
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if (on)
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at91_set_gpio_value(AT91_PIN_PD12, 0); /* power up */
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else
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at91_set_gpio_value(AT91_PIN_PD12, 1); /* power down */
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}
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/* Driver datas */
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static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
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.default_bpp = 16,
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.default_dmacon = ATMEL_LCDC_DMAEN,
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.default_lcdcon2 = AT91SAM9263_DEFAULT_LCDCON2,
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.default_monspecs = &at91fb_default_monspecs,
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.atmel_lcdfb_power_control = at91_lcdc_power_control,
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.guard_time = 1,
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};
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#else
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static struct atmel_lcdfb_info __initdata ek_lcdc_data;
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#endif
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/*
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* GPIO Buttons
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*/
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#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
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static struct gpio_keys_button ek_buttons[] = {
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{ /* BP1, "leftclic" */
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.code = BTN_LEFT,
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.gpio = AT91_PIN_PC5,
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.active_low = 1,
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.desc = "left_click",
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.wakeup = 1,
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},
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{ /* BP2, "rightclic" */
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.code = BTN_RIGHT,
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.gpio = AT91_PIN_PC4,
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.active_low = 1,
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.desc = "right_click",
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.wakeup = 1,
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},
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};
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static struct gpio_keys_platform_data ek_button_data = {
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.buttons = ek_buttons,
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.nbuttons = ARRAY_SIZE(ek_buttons),
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};
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static struct platform_device ek_button_device = {
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.name = "gpio-keys",
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.id = -1,
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.num_resources = 0,
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.dev = {
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.platform_data = &ek_button_data,
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}
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};
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static void __init ek_add_device_buttons(void)
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{
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at91_set_GPIO_periph(AT91_PIN_PC5, 0); /* left button */
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at91_set_deglitch(AT91_PIN_PC5, 1);
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at91_set_GPIO_periph(AT91_PIN_PC4, 0); /* right button */
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at91_set_deglitch(AT91_PIN_PC4, 1);
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platform_device_register(&ek_button_device);
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}
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#else
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static void __init ek_add_device_buttons(void) {}
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#endif
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/*
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* AC97
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*/
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static struct atmel_ac97_data ek_ac97_data = {
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.reset_pin = AT91_PIN_PA13,
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};
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/*
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* LEDs ... these could all be PWM-driven, for variable brightness
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*/
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static struct gpio_led ek_leds[] = {
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{ /* "left" led, green, userled1, pwm1 */
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.name = "ds1",
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.gpio = AT91_PIN_PB8,
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.active_low = 1,
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.default_trigger = "mmc0",
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},
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{ /* "right" led, green, userled2, pwm2 */
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.name = "ds2",
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.gpio = AT91_PIN_PC29,
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.active_low = 1,
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.default_trigger = "nand-disk",
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},
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{ /* "power" led, yellow, pwm0 */
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.name = "ds3",
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.gpio = AT91_PIN_PB7,
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.default_trigger = "heartbeat",
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},
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};
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static void __init ek_board_init(void)
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{
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/* Serial */
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at91_add_device_serial();
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/* USB Host */
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at91_add_device_usbh(&ek_usbh_data);
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/* USB Device */
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at91_add_device_udc(&ek_udc_data);
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/* SPI */
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at91_set_gpio_output(AT91_PIN_PE20, 1); /* select spi0 clock */
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at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
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/* Touchscreen */
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ek_add_device_ts();
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/* MMC */
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at91_add_device_mmc(1, &ek_mmc_data);
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/* Ethernet */
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at91_add_device_eth(&ek_macb_data);
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/* NAND */
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at91_add_device_nand(&ek_nand_data);
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/* I2C */
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at91_add_device_i2c(NULL, 0);
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/* LCD Controller */
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at91_add_device_lcdc(&ek_lcdc_data);
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/* Push Buttons */
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ek_add_device_buttons();
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/* AC97 */
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at91_add_device_ac97(&ek_ac97_data);
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/* LEDs */
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at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
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}
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MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
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/* Maintainer: Atmel */
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.phys_io = AT91_BASE_SYS,
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.io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
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.boot_params = AT91_SDRAM_BASE + 0x100,
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.timer = &at91sam926x_timer,
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.map_io = ek_map_io,
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.init_irq = ek_init_irq,
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.init_machine = ek_board_init,
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MACHINE_END
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