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>
30 #include <linux/regulator/machine.h>
31 #include <linux/regulator/fixed.h>
32 #include <linux/regulator/consumer.h>
34 #include <mach/hardware.h>
35 #include <asm/setup.h>
36 #include <asm/mach-types.h>
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/irq.h>
43 #include <mach/board.h>
44 #include <mach/gpio.h>
45 #include <mach/at91sam9_smc.h>
51 static void __init
ek_map_io(void)
53 /* Initialize processor: 18.432 MHz crystal */
54 at91sam9260_initialize(18432000);
56 /* DBGU on ttyS0. (Rx & Tx only) */
57 at91_register_uart(0, 0, 0);
59 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
60 at91_register_uart(AT91SAM9260_ID_US0
, 1, ATMEL_UART_CTS
| ATMEL_UART_RTS
61 | ATMEL_UART_DTR
| ATMEL_UART_DSR
| ATMEL_UART_DCD
64 /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
65 at91_register_uart(AT91SAM9260_ID_US1
, 2, ATMEL_UART_CTS
| ATMEL_UART_RTS
);
67 /* set serial console to ttyS0 (ie, DBGU) */
68 at91_set_serial_console(0);
71 static void __init
ek_init_irq(void)
73 at91sam9260_init_interrupts(NULL
);
80 static struct at91_usbh_data __initdata ek_usbh_data
= {
87 static struct at91_udc_data __initdata ek_udc_data
= {
88 .vbus_pin
= AT91_PIN_PC5
,
89 .pullup_pin
= 0, /* pull-up driven by UDC */
96 static struct spi_board_info ek_spi_devices
[] = {
97 #if !defined(CONFIG_MMC_AT91)
98 { /* DataFlash chip */
99 .modalias
= "mtd_dataflash",
101 .max_speed_hz
= 15 * 1000 * 1000,
104 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
105 { /* DataFlash card */
106 .modalias
= "mtd_dataflash",
108 .max_speed_hz
= 15 * 1000 * 1000,
117 * MACB Ethernet device
119 static struct at91_eth_data __initdata ek_macb_data
= {
120 .phy_irq_pin
= AT91_PIN_PA7
,
128 static struct mtd_partition __initdata ek_nand_partition
[] = {
135 .name
= "Partition 1",
136 .offset
= MTDPART_OFS_NXTBLK
,
140 .name
= "Partition 2",
141 .offset
= MTDPART_OFS_NXTBLK
,
142 .size
= MTDPART_SIZ_FULL
,
146 static struct mtd_partition
* __init
nand_partitions(int size
, int *num_partitions
)
148 *num_partitions
= ARRAY_SIZE(ek_nand_partition
);
149 return ek_nand_partition
;
152 /* det_pin is not connected */
153 static struct atmel_nand_data __initdata ek_nand_data
= {
156 .rdy_pin
= AT91_PIN_PC13
,
157 .enable_pin
= AT91_PIN_PC14
,
158 .partition_info
= nand_partitions
,
159 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
166 static struct sam9_smc_config __initdata ek_nand_smc_config
= {
169 .ncs_write_setup
= 0,
174 .ncs_write_pulse
= 4,
180 .mode
= AT91_SMC_READMODE
| AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE
,
184 static void __init
ek_add_device_nand(void)
186 /* setup bus-width (8 or 16) */
187 if (ek_nand_data
.bus_width_16
)
188 ek_nand_smc_config
.mode
|= AT91_SMC_DBW_16
;
190 ek_nand_smc_config
.mode
|= AT91_SMC_DBW_8
;
192 /* configure chip-select 3 (NAND) */
193 sam9_smc_configure(3, &ek_nand_smc_config
);
195 at91_add_device_nand(&ek_nand_data
);
201 * det_pin, wp_pin and vcc_pin are not connected
203 static struct at91_mmc_data __initdata ek_mmc_data
= {
212 static struct gpio_led ek_leds
[] = {
213 { /* "bottom" led, green, userled1 to be defined */
215 .gpio
= AT91_PIN_PA6
,
217 .default_trigger
= "none",
219 { /* "power" led, yellow */
221 .gpio
= AT91_PIN_PA9
,
222 .default_trigger
= "heartbeat",
230 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
231 static struct gpio_keys_button ek_buttons
[] = {
233 .gpio
= AT91_PIN_PA30
,
240 .gpio
= AT91_PIN_PA31
,
248 static struct gpio_keys_platform_data ek_button_data
= {
249 .buttons
= ek_buttons
,
250 .nbuttons
= ARRAY_SIZE(ek_buttons
),
253 static struct platform_device ek_button_device
= {
258 .platform_data
= &ek_button_data
,
262 static void __init
ek_add_device_buttons(void)
264 at91_set_gpio_input(AT91_PIN_PA30
, 1); /* btn3 */
265 at91_set_deglitch(AT91_PIN_PA30
, 1);
266 at91_set_gpio_input(AT91_PIN_PA31
, 1); /* btn4 */
267 at91_set_deglitch(AT91_PIN_PA31
, 1);
269 platform_device_register(&ek_button_device
);
272 static void __init
ek_add_device_buttons(void) {}
275 #if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
276 static struct regulator_consumer_supply ek_audio_consumer_supplies
[] = {
277 REGULATOR_SUPPLY("AVDD", "0-001b"),
278 REGULATOR_SUPPLY("HPVDD", "0-001b"),
279 REGULATOR_SUPPLY("DBVDD", "0-001b"),
280 REGULATOR_SUPPLY("DCVDD", "0-001b"),
283 static struct regulator_init_data ek_avdd_reg_init_data
= {
286 .valid_ops_mask
= REGULATOR_CHANGE_STATUS
,
288 .consumer_supplies
= ek_audio_consumer_supplies
,
289 .num_consumer_supplies
= ARRAY_SIZE(ek_audio_consumer_supplies
),
292 static struct fixed_voltage_config ek_vdd_pdata
= {
293 .supply_name
= "board-3V3",
294 .microvolts
= 3300000,
296 .enabled_at_boot
= 0,
297 .init_data
= &ek_avdd_reg_init_data
,
299 static struct platform_device ek_voltage_regulator
= {
300 .name
= "reg-fixed-voltage",
304 .platform_data
= &ek_vdd_pdata
,
307 static void __init
ek_add_regulators(void)
309 platform_device_register(&ek_voltage_regulator
);
312 static void __init
ek_add_regulators(void) {}
316 static struct i2c_board_info __initdata ek_i2c_devices
[] = {
318 I2C_BOARD_INFO("24c512", 0x50)
321 I2C_BOARD_INFO("wm8731", 0x1b)
326 static void __init
ek_board_init(void)
329 at91_add_device_serial();
331 at91_add_device_usbh(&ek_usbh_data
);
333 at91_add_device_udc(&ek_udc_data
);
335 at91_add_device_spi(ek_spi_devices
, ARRAY_SIZE(ek_spi_devices
));
337 ek_add_device_nand();
339 at91_add_device_eth(&ek_macb_data
);
343 at91_add_device_mmc(0, &ek_mmc_data
);
345 at91_add_device_i2c(ek_i2c_devices
, ARRAY_SIZE(ek_i2c_devices
));
347 at91_gpio_leds(ek_leds
, ARRAY_SIZE(ek_leds
));
349 ek_add_device_buttons();
350 /* PCK0 provides MCLK to the WM8731 */
351 at91_set_B_periph(AT91_PIN_PC1
, 0);
352 /* SSC (for WM8731) */
353 at91_add_device_ssc(AT91SAM9260_ID_SSC
, ATMEL_SSC_TX
);
356 MACHINE_START(AT91SAM9G20EK
, "Atmel AT91SAM9G20-EK")
357 /* Maintainer: Atmel */
358 .phys_io
= AT91_BASE_SYS
,
359 .io_pg_offst
= (AT91_VA_BASE_SYS
>> 18) & 0xfffc,
360 .boot_params
= AT91_SDRAM_BASE
+ 0x100,
361 .timer
= &at91sam926x_timer
,
363 .init_irq
= ek_init_irq
,
364 .init_machine
= ek_board_init
,