forked from luck/tmp_suning_uos_patched
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>
503 lines
12 KiB
C
503 lines
12 KiB
C
/*
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* linux/arch/arm/mach-at91/board-sam9261ek.c
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*
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* Copyright (C) 2005 SAN People
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* Copyright (C) 2006 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 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/dm9000.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 = 1,
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.tty_map = { 3, -1, -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: 18.432 MHz crystal */
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at91sam9261_initialize(18432000);
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/* Setup the LEDs */
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at91_init_leds(AT91_PIN_PA13, AT91_PIN_PA14);
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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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at91sam9261_init_interrupts(NULL);
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}
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/*
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* DM9000 ethernet device
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*/
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#if defined(CONFIG_DM9000)
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static struct resource at91sam9261_dm9000_resource[] = {
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[0] = {
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.start = AT91_CHIPSELECT_2,
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.end = AT91_CHIPSELECT_2 + 3,
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.flags = IORESOURCE_MEM
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},
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[1] = {
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.start = AT91_CHIPSELECT_2 + 0x44,
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.end = AT91_CHIPSELECT_2 + 0xFF,
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.flags = IORESOURCE_MEM
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},
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[2] = {
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.start = AT91_PIN_PC11,
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.end = AT91_PIN_PC11,
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.flags = IORESOURCE_IRQ
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}
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};
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static struct dm9000_plat_data dm9000_platdata = {
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.flags = DM9000_PLATF_16BITONLY,
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};
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static struct platform_device at91sam9261_dm9000_device = {
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.name = "dm9000",
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.id = 0,
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.num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource),
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.resource = at91sam9261_dm9000_resource,
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.dev = {
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.platform_data = &dm9000_platdata,
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}
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};
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static void __init ek_add_device_dm9000(void)
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{
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/*
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* Configure Chip-Select 2 on SMC for the DM9000.
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* Note: These timings were calculated for MASTER_CLOCK = 100000000
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* according to the DM9000 timings.
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*/
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at91_sys_write(AT91_SMC_SETUP(2), AT91_SMC_NWESETUP_(2) | AT91_SMC_NCS_WRSETUP_(0) | AT91_SMC_NRDSETUP_(2) | AT91_SMC_NCS_RDSETUP_(0));
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at91_sys_write(AT91_SMC_PULSE(2), AT91_SMC_NWEPULSE_(4) | AT91_SMC_NCS_WRPULSE_(8) | AT91_SMC_NRDPULSE_(4) | AT91_SMC_NCS_RDPULSE_(8));
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at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
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at91_sys_write(AT91_SMC_MODE(2), AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16 | AT91_SMC_TDF_(1));
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/* Configure Reset signal as output */
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at91_set_gpio_output(AT91_PIN_PC10, 0);
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/* Configure Interrupt pin as input, no pull-up */
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at91_set_gpio_input(AT91_PIN_PC11, 0);
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platform_device_register(&at91sam9261_dm9000_device);
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}
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#else
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static void __init ek_add_device_dm9000(void) {}
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#endif /* CONFIG_DM9000 */
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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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};
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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_PB29,
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.pullup_pin = 0, /* pull-up driven by UDC */
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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 = ... not connected
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// .wp_pin = ... not connected
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// .vcc_pin = ... not connected
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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 = 256 * 1024,
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},
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{
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.name = "Partition 2",
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.offset = 256 * 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 = 22,
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.cle = 21,
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// .det_pin = ... not connected
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.rdy_pin = AT91_PIN_PC15,
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.enable_pin = AT91_PIN_PC14,
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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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* 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_PC2); /* 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_PC2, 1); /* External IRQ0, with pullup */
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at91_set_gpio_input(AT91_PIN_PA11, 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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{ /* DataFlash chip */
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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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#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 = 2,
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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 = AT91SAM9261_ID_IRQ0,
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},
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#endif
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#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
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{ /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
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.modalias = "mtd_dataflash",
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.chip_select = 3,
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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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#elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
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{ /* AT73C213 DAC */
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.modalias = "at73c213",
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.chip_select = 3,
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.max_speed_hz = 10 * 1000 * 1000,
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.bus_num = 0,
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},
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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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#if defined(CONFIG_FB_ATMEL_STN)
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/* STN */
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static struct fb_videomode at91_stn_modes[] = {
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{
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.name = "SP06Q002 @ 75",
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.refresh = 75,
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.xres = 320, .yres = 240,
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.pixclock = KHZ2PICOS(1440),
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.left_margin = 1, .right_margin = 1,
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.upper_margin = 0, .lower_margin = 0,
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.hsync_len = 1, .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_stn_monspecs = {
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.manufacturer = "HIT",
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.monitor = "SP06Q002",
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.modedb = at91_stn_modes,
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.modedb_len = ARRAY_SIZE(at91_stn_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 AT91SAM9261_DEFAULT_STN_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
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| ATMEL_LCDC_DISTYPE_STNMONO \
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| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE \
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| ATMEL_LCDC_IFWIDTH_4 \
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| ATMEL_LCDC_SCANMOD_SINGLE)
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static void at91_lcdc_stn_power_control(int on)
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{
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/* backlight */
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if (on) { /* power up */
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at91_set_gpio_value(AT91_PIN_PC14, 0);
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at91_set_gpio_value(AT91_PIN_PC15, 0);
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} else { /* power down */
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at91_set_gpio_value(AT91_PIN_PC14, 1);
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at91_set_gpio_value(AT91_PIN_PC15, 1);
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}
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}
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static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
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.default_bpp = 1,
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.default_dmacon = ATMEL_LCDC_DMAEN,
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.default_lcdcon2 = AT91SAM9261_DEFAULT_STN_LCDCON2,
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.default_monspecs = &at91fb_default_stn_monspecs,
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.atmel_lcdfb_power_control = at91_lcdc_stn_power_control,
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.guard_time = 1,
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};
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#else
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/* TFT */
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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_tft_monspecs = {
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.manufacturer = "HIT",
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.monitor = "TX09D50VM1CCA",
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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 AT91SAM9261_DEFAULT_TFT_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_tft_power_control(int on)
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{
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if (on)
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at91_set_gpio_value(AT91_PIN_PA12, 0); /* power up */
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else
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at91_set_gpio_value(AT91_PIN_PA12, 1); /* power down */
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}
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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 = AT91SAM9261_DEFAULT_TFT_LCDCON2,
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.default_monspecs = &at91fb_default_tft_monspecs,
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.atmel_lcdfb_power_control = at91_lcdc_tft_power_control,
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.guard_time = 1,
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};
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#endif
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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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{
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.gpio = AT91_PIN_PA27,
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.code = BTN_0,
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.desc = "Button 0",
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.active_low = 1,
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},
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{
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.gpio = AT91_PIN_PA26,
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.code = BTN_1,
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.desc = "Button 1",
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.active_low = 1,
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},
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{
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.gpio = AT91_PIN_PA25,
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.code = BTN_2,
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.desc = "Button 2",
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.active_low = 1,
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},
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{
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.gpio = AT91_PIN_PA24,
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.code = BTN_3,
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.desc = "Button 3",
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.active_low = 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_input(AT91_PIN_PA27, 0); /* btn0 */
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at91_set_deglitch(AT91_PIN_PA27, 1);
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at91_set_gpio_input(AT91_PIN_PA26, 0); /* btn1 */
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at91_set_deglitch(AT91_PIN_PA26, 1);
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at91_set_gpio_input(AT91_PIN_PA25, 0); /* btn2 */
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at91_set_deglitch(AT91_PIN_PA25, 1);
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at91_set_gpio_input(AT91_PIN_PA24, 0); /* btn3 */
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at91_set_deglitch(AT91_PIN_PA24, 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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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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/* I2C */
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at91_add_device_i2c(NULL, 0);
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/* NAND */
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at91_add_device_nand(&ek_nand_data);
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/* DM9000 ethernet */
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ek_add_device_dm9000();
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/* spi0 and mmc/sd share the same PIO pins */
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#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
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/* SPI */
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at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
|
|
/* Touchscreen */
|
|
ek_add_device_ts();
|
|
#else
|
|
/* MMC */
|
|
at91_add_device_mmc(0, &ek_mmc_data);
|
|
#endif
|
|
/* LCD Controller */
|
|
at91_add_device_lcdc(&ek_lcdc_data);
|
|
/* Push Buttons */
|
|
ek_add_device_buttons();
|
|
}
|
|
|
|
MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
|
|
/* Maintainer: Atmel */
|
|
.phys_io = AT91_BASE_SYS,
|
|
.io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
|
|
.boot_params = AT91_SDRAM_BASE + 0x100,
|
|
.timer = &at91sam926x_timer,
|
|
.map_io = ek_map_io,
|
|
.init_irq = ek_init_irq,
|
|
.init_machine = ek_board_init,
|
|
MACHINE_END
|