276 lines
6.1 KiB
C
276 lines
6.1 KiB
C
/*
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* Copyright (C) 2007 Sascha Hauer, Pengutronix
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (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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*
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*/
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#include <common.h>
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#include <net.h>
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#include <init.h>
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#include <environment.h>
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#include <asm/armlinux.h>
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#include <generated/mach-types.h>
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#include <partition.h>
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#include <fs.h>
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#include <fcntl.h>
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#include <io.h>
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#include <asm/hardware.h>
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#include <nand.h>
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#include <sizes.h>
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#include <linux/mtd/nand.h>
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#include <mach/at91_pmc.h>
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#include <mach/board.h>
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#include <mach/gpio.h>
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#include <mach/io.h>
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#include <mach/at91sam9_smc.h>
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#include <mach/sam9_smc.h>
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#include <dm9000.h>
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#include <gpio_keys.h>
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#include <readkey.h>
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#include <led.h>
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static struct atmel_nand_data nand_pdata = {
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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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#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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.on_flash_bbt = 1,
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};
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static struct sam9_smc_config ek_nand_smc_config = {
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.ncs_read_setup = 0,
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.nrd_setup = 1,
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.ncs_write_setup = 0,
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.nwe_setup = 1,
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.ncs_read_pulse = 3,
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.nrd_pulse = 3,
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.ncs_write_pulse = 3,
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.nwe_pulse = 3,
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.read_cycle = 5,
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.write_cycle = 5,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
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.tdf_cycles = 2,
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};
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static void ek_add_device_nand(void)
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{
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/* setup bus-width (8 or 16) */
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if (nand_pdata.bus_width_16)
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ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
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else
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ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
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/* configure chip-select 3 (NAND) */
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sam9_smc_configure(3, &ek_nand_smc_config);
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at91_add_device_nand(&nand_pdata);
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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_DRIVER_NET_DM9K)
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static struct dm9000_platform_data dm9000_data = {
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.srom = 0,
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};
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/*
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* SMC timings for the DM9000.
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* Note: These timings were calculated for MASTER_CLOCK = 100000000 according to the DM9000 timings.
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*/
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static struct sam9_smc_config __initdata dm9000_smc_config = {
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.ncs_read_setup = 0,
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.nrd_setup = 2,
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.ncs_write_setup = 0,
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.nwe_setup = 2,
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.ncs_read_pulse = 8,
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.nrd_pulse = 4,
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.ncs_write_pulse = 8,
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.nwe_pulse = 4,
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.read_cycle = 16,
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.write_cycle = 16,
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.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_BAT_WRITE | AT91_SMC_DBW_16,
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.tdf_cycles = 1,
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};
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static void __init ek_add_device_dm9000(void)
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{
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/* Configure chip-select 2 (DM9000) */
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sam9_smc_configure(2, &dm9000_smc_config);
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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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add_dm9000_device(0, AT91_CHIPSELECT_2, AT91_CHIPSELECT_2 + 4,
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IORESOURCE_MEM_16BIT, &dm9000_data);
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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_DRIVER_NET_DM9K */
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#if defined(CONFIG_USB_GADGET_DRIVER_AT91)
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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,
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};
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static void ek_add_device_udc(void)
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{
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at91_add_device_udc(&ek_udc_data);
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}
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#else
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static void ek_add_device_udc(void) {}
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#endif
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#ifdef CONFIG_KEYBOARD_GPIO
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struct gpio_keys_button keys[] = {
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{
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.code = KEY_UP,
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.gpio = AT91_PIN_PA26,
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}, {
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.code = KEY_DOWN,
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.gpio = AT91_PIN_PA25,
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}, {
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.code = KEY_ENTER,
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.gpio = AT91_PIN_PA24,
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},
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};
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struct gpio_keys_platform_data gk_pdata = {
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.buttons = keys,
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.nbuttons = ARRAY_SIZE(keys),
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};
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static void ek_add_device_keyboard_buttons(void)
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{
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int i;
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for (i = 0; i < gk_pdata.nbuttons; i++) {
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/* user push button, pull up enabled */
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keys[i].active_low = 1;
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at91_set_GPIO_periph(keys[i].gpio, keys[i].active_low);
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at91_set_deglitch(keys[i].gpio, 1);
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}
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add_gpio_keys_device(-1, &gk_pdata);
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}
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#else
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static void ek_add_device_keyboard_buttons(void) {}
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#endif
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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, 1);
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at91_set_deglitch(AT91_PIN_PA27, 1);
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export_env_ull("dfu_button", AT91_PIN_PA27);
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ek_add_device_keyboard_buttons();
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}
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#ifdef CONFIG_LED_GPIO
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struct gpio_led ek_leds[] = {
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{
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.gpio = AT91_PIN_PA23,
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.led = {
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.name = "ds1",
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},
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}, {
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.gpio = AT91_PIN_PA14,
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.active_low = 1,
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.led = {
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.name = "ds7",
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},
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}, {
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.gpio = AT91_PIN_PA13,
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.active_low = 1,
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.led = {
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.name = "ds8",
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},
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},
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};
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static void ek_device_add_leds(void)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(ek_leds); i++) {
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at91_set_gpio_output(ek_leds[i].gpio, ek_leds[i].active_low);
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led_gpio_register(&ek_leds[i]);
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}
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led_set_trigger(LED_TRIGGER_HEARTBEAT, &ek_leds[0].led);
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}
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#else
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static void ek_device_add_leds(void) {}
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#endif
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static int at91sam9261ek_mem_init(void)
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{
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at91_add_device_sdram(0);
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return 0;
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}
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mem_initcall(at91sam9261ek_mem_init);
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static int at91sam9261ek_devices_init(void)
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{
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ek_add_device_nand();
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ek_add_device_dm9000();
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ek_add_device_udc();
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ek_add_device_buttons();
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ek_device_add_leds();
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devfs_add_partition("nand0", 0x00000, SZ_128K, DEVFS_PARTITION_FIXED, "at91bootstrap_raw");
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devfs_add_partition("nand0", SZ_128K, SZ_256K, DEVFS_PARTITION_FIXED, "self_raw");
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dev_add_bb_dev("self_raw", "self0");
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devfs_add_partition("nand0", SZ_256K + SZ_128K, SZ_128K, DEVFS_PARTITION_FIXED, "env_raw");
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dev_add_bb_dev("env_raw", "env0");
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devfs_add_partition("nand0", SZ_512K, SZ_128K, DEVFS_PARTITION_FIXED, "env_raw1");
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dev_add_bb_dev("env_raw1", "env1");
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armlinux_set_bootparams((void *)(AT91_CHIPSELECT_1 + 0x100));
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if (machine_is_at91sam9g10ek())
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armlinux_set_architecture(MACH_TYPE_AT91SAM9G10EK);
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else
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armlinux_set_architecture(MACH_TYPE_AT91SAM9261EK);
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return 0;
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}
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device_initcall(at91sam9261ek_devices_init);
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static int at91sam9261ek_console_init(void)
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{
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at91_register_uart(0, 0);
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return 0;
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}
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console_initcall(at91sam9261ek_console_init);
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