2 * Copyright (C) 2005 SAN People
3 * Copyright (C) 2008 Atmel
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #include <linux/types.h>
21 #include <linux/init.h>
23 #include <linux/module.h>
24 #include <linux/platform_device.h>
25 #include <linux/spi/spi.h>
26 #include <linux/spi/at73c213.h>
27 #include <linux/gpio_keys.h>
28 #include <linux/input.h>
29 #include <linux/clk.h>
31 #include <mach/hardware.h>
32 #include <asm/setup.h>
33 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
38 #include <asm/mach/irq.h>
40 #include <mach/board.h>
41 #include <mach/gpio.h>
42 #include <mach/at91sam9_smc.h>
48 static void __init ek_map_io(void)
50 /* Initialize processor: 18.432 MHz crystal */
51 at91sam9260_initialize(18432000);
53 /* DBGU on ttyS0. (Rx & Tx only) */
54 at91_register_uart(0, 0, 0);
56 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
57 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
58 | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
61 /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
62 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
64 /* set serial console to ttyS0 (ie, DBGU) */
65 at91_set_serial_console(0);
68 static void __init ek_init_irq(void)
70 at91sam9260_init_interrupts(NULL);
77 static struct at91_usbh_data __initdata ek_usbh_data = {
84 static struct at91_udc_data __initdata ek_udc_data = {
85 .vbus_pin = AT91_PIN_PC5,
86 .pullup_pin = 0, /* pull-up driven by UDC */
93 static struct spi_board_info ek_spi_devices[] = {
94 #if !defined(CONFIG_MMC_AT91)
95 { /* DataFlash chip */
96 .modalias = "mtd_dataflash",
98 .max_speed_hz = 15 * 1000 * 1000,
101 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
102 { /* DataFlash card */
103 .modalias = "mtd_dataflash",
105 .max_speed_hz = 15 * 1000 * 1000,
114 * MACB Ethernet device
116 static struct at91_eth_data __initdata ek_macb_data = {
117 .phy_irq_pin = AT91_PIN_PA7,
125 static struct mtd_partition __initdata ek_nand_partition[] = {
132 .name = "Partition 1",
133 .offset = MTDPART_OFS_NXTBLK,
137 .name = "Partition 2",
138 .offset = MTDPART_OFS_NXTBLK,
139 .size = MTDPART_SIZ_FULL,
143 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
145 *num_partitions = ARRAY_SIZE(ek_nand_partition);
146 return ek_nand_partition;
149 /* det_pin is not connected */
150 static struct atmel_nand_data __initdata ek_nand_data = {
153 .rdy_pin = AT91_PIN_PC13,
154 .enable_pin = AT91_PIN_PC14,
155 .partition_info = nand_partitions,
156 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
163 static struct sam9_smc_config __initdata ek_nand_smc_config = {
166 .ncs_write_setup = 0,
171 .ncs_write_pulse = 4,
177 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
181 static void __init ek_add_device_nand(void)
183 /* setup bus-width (8 or 16) */
184 if (ek_nand_data.bus_width_16)
185 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
187 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
189 /* configure chip-select 3 (NAND) */
190 sam9_smc_configure(3, &ek_nand_smc_config);
192 at91_add_device_nand(&ek_nand_data);
198 * det_pin, wp_pin and vcc_pin are not connected
200 static struct at91_mmc_data __initdata ek_mmc_data = {
209 static struct gpio_led ek_leds[] = {
210 { /* "bottom" led, green, userled1 to be defined */
212 .gpio = AT91_PIN_PA6,
214 .default_trigger = "none",
216 { /* "power" led, yellow */
218 .gpio = AT91_PIN_PA9,
219 .default_trigger = "heartbeat",
227 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
228 static struct gpio_keys_button ek_buttons[] = {
230 .gpio = AT91_PIN_PA30,
237 .gpio = AT91_PIN_PA31,
245 static struct gpio_keys_platform_data ek_button_data = {
246 .buttons = ek_buttons,
247 .nbuttons = ARRAY_SIZE(ek_buttons),
250 static struct platform_device ek_button_device = {
255 .platform_data = &ek_button_data,
259 static void __init ek_add_device_buttons(void)
261 at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */
262 at91_set_deglitch(AT91_PIN_PA30, 1);
263 at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */
264 at91_set_deglitch(AT91_PIN_PA31, 1);
266 platform_device_register(&ek_button_device);
269 static void __init ek_add_device_buttons(void) {}
273 static struct i2c_board_info __initdata ek_i2c_devices[] = {
275 I2C_BOARD_INFO("24c512", 0x50),
276 I2C_BOARD_INFO("wm8731", 0x1b),
281 static void __init ek_board_init(void)
284 at91_add_device_serial();
286 at91_add_device_usbh(&ek_usbh_data);
288 at91_add_device_udc(&ek_udc_data);
290 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
292 ek_add_device_nand();
294 at91_add_device_eth(&ek_macb_data);
296 at91_add_device_mmc(0, &ek_mmc_data);
298 at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
300 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
302 ek_add_device_buttons();
303 /* PCK0 provides MCLK to the WM8731 */
304 at91_set_B_periph(AT91_PIN_PC1, 0);
305 /* SSC (for WM8731) */
306 at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
309 MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
310 /* Maintainer: Atmel */
311 .phys_io = AT91_BASE_SYS,
312 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
313 .boot_params = AT91_SDRAM_BASE + 0x100,
314 .timer = &at91sam926x_timer,
316 .init_irq = ek_init_irq,
317 .init_machine = ek_board_init,