559 lines
13 KiB
C
559 lines
13 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/spi/at73c213.h>
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#include <linux/clk.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/arch/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/at91sam9_smc.h>
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#include "generic.h"
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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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/* DGBU on ttyS0. (Rx & Tx only) */
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at91_register_uart(0, 0, 0);
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/* set serial console to ttyS0 (ie, DBGU) */
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at91_set_serial_console(0);
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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 atmel_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_ATMEL_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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* Audio
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*/
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static struct at73c213_board_info at73c213_data = {
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.ssc_id = 1,
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.shortname = "AT91SAM9261-EK external DAC",
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};
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#if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
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static void __init at73c213_set_clk(struct at73c213_board_info *info)
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{
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struct clk *pck2;
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struct clk *plla;
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pck2 = clk_get(NULL, "pck2");
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plla = clk_get(NULL, "plla");
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/* AT73C213 MCK Clock */
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at91_set_B_periph(AT91_PIN_PB31, 0); /* PCK2 */
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clk_set_parent(pck2, plla);
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clk_put(plla);
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info->dac_clk = pck2;
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}
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#else
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static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
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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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.controller_data = (void *) AT91_PIN_PA28, /* CS pin */
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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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.mode = SPI_MODE_1,
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.platform_data = &at73c213_data,
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.controller_data = (void*) AT91_PIN_PA29, /* default for CS3 is PA6, but it must be PA29 */
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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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.lcdcon_is_backlight = true,
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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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|
|
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/*
|
|
* LEDs
|
|
*/
|
|
static struct gpio_led ek_leds[] = {
|
|
{ /* "bottom" led, green, userled1 to be defined */
|
|
.name = "ds7",
|
|
.gpio = AT91_PIN_PA14,
|
|
.active_low = 1,
|
|
.default_trigger = "none",
|
|
},
|
|
{ /* "top" led, green, userled2 to be defined */
|
|
.name = "ds8",
|
|
.gpio = AT91_PIN_PA13,
|
|
.active_low = 1,
|
|
.default_trigger = "none",
|
|
},
|
|
{ /* "power" led, yellow */
|
|
.name = "ds1",
|
|
.gpio = AT91_PIN_PA23,
|
|
.default_trigger = "heartbeat",
|
|
}
|
|
};
|
|
|
|
static void __init ek_board_init(void)
|
|
{
|
|
/* Serial */
|
|
at91_add_device_serial();
|
|
/* USB Host */
|
|
at91_add_device_usbh(&ek_usbh_data);
|
|
/* USB Device */
|
|
at91_add_device_udc(&ek_udc_data);
|
|
/* I2C */
|
|
at91_add_device_i2c(NULL, 0);
|
|
/* NAND */
|
|
at91_add_device_nand(&ek_nand_data);
|
|
/* DM9000 ethernet */
|
|
ek_add_device_dm9000();
|
|
|
|
/* spi0 and mmc/sd share the same PIO pins */
|
|
#if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
|
|
/* SPI */
|
|
at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
|
|
/* Touchscreen */
|
|
ek_add_device_ts();
|
|
/* SSC (to AT73C213) */
|
|
at73c213_set_clk(&at73c213_data);
|
|
at91_add_device_ssc(AT91SAM9261_ID_SSC1, ATMEL_SSC_TX);
|
|
#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();
|
|
/* LEDs */
|
|
at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
|
|
}
|
|
|
|
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
|