2 * linux/arch/arm/mach-at91/board-sam9261ek.c
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2006 Atmel
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include <linux/types.h>
23 #include <linux/init.h>
25 #include <linux/module.h>
26 #include <linux/platform_device.h>
27 #include <linux/spi/spi.h>
28 #include <linux/spi/ads7846.h>
29 #include <linux/dm9000.h>
31 #include <asm/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 <asm/arch/board.h>
41 #include <asm/arch/gpio.h>
42 #include <asm/arch/at91sam926x_mc.h>
48 * Serial port configuration.
49 * 0 .. 2 = USART0 .. USART2
52 static struct at91_uart_config __initdata ek_uart_config = {
53 .console_tty = 0, /* ttyS0 */
55 .tty_map = { 3, -1, -1, -1 } /* ttyS0, ..., ttyS3 */
58 static void __init ek_map_io(void)
60 /* Initialize processor: 18.432 MHz crystal */
61 at91sam9261_initialize(18432000);
63 /* Setup the serial ports and console */
64 at91_init_serial(&ek_uart_config);
67 static void __init ek_init_irq(void)
69 at91sam9261_init_interrupts(NULL);
74 * DM9000 ethernet device
76 #if defined(CONFIG_DM9000)
77 static struct resource at91sam9261_dm9000_resource[] = {
79 .start = AT91_CHIPSELECT_2,
80 .end = AT91_CHIPSELECT_2 + 3,
81 .flags = IORESOURCE_MEM
84 .start = AT91_CHIPSELECT_2 + 0x44,
85 .end = AT91_CHIPSELECT_2 + 0xFF,
86 .flags = IORESOURCE_MEM
89 .start = AT91_PIN_PC11,
91 .flags = IORESOURCE_IRQ
95 static struct dm9000_plat_data dm9000_platdata = {
96 .flags = DM9000_PLATF_16BITONLY,
99 static struct platform_device at91sam9261_dm9000_device = {
102 .num_resources = ARRAY_SIZE(at91sam9261_dm9000_resource),
103 .resource = at91sam9261_dm9000_resource,
105 .platform_data = &dm9000_platdata,
109 static void __init ek_add_device_dm9000(void)
112 * Configure Chip-Select 2 on SMC for the DM9000.
113 * Note: These timings were calculated for MASTER_CLOCK = 100000000
114 * according to the DM9000 timings.
116 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));
117 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));
118 at91_sys_write(AT91_SMC_CYCLE(2), AT91_SMC_NWECYCLE_(16) | AT91_SMC_NRDCYCLE_(16));
119 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));
121 /* Configure Reset signal as output */
122 at91_set_gpio_output(AT91_PIN_PC10, 0);
124 /* Configure Interrupt pin as input, no pull-up */
125 at91_set_gpio_input(AT91_PIN_PC11, 0);
127 platform_device_register(&at91sam9261_dm9000_device);
130 static void __init ek_add_device_dm9000(void) {}
131 #endif /* CONFIG_DM9000 */
137 static struct at91_usbh_data __initdata ek_usbh_data = {
145 static struct at91_udc_data __initdata ek_udc_data = {
146 .vbus_pin = AT91_PIN_PB29,
147 .pullup_pin = 0, /* pull-up driven by UDC */
154 static struct at91_mmc_data __initdata ek_mmc_data = {
156 // .det_pin = ... not connected
157 // .wp_pin = ... not connected
158 // .vcc_pin = ... not connected
165 static struct mtd_partition __initdata ek_nand_partition[] = {
167 .name = "Partition 1",
172 .name = "Partition 2",
173 .offset = 256 * 1024 ,
174 .size = MTDPART_SIZ_FULL,
178 static struct mtd_partition *nand_partitions(int size, int *num_partitions)
180 *num_partitions = ARRAY_SIZE(ek_nand_partition);
181 return ek_nand_partition;
184 static struct at91_nand_data __initdata ek_nand_data = {
187 // .det_pin = ... not connected
188 .rdy_pin = AT91_PIN_PC15,
189 .enable_pin = AT91_PIN_PC14,
190 .partition_info = nand_partitions,
191 #if defined(CONFIG_MTD_NAND_AT91_BUSWIDTH_16)
199 * ADS7846 Touchscreen
201 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
203 static int ads7843_pendown_state(void)
205 return !at91_get_gpio_value(AT91_PIN_PC2); /* Touchscreen PENIRQ */
208 static struct ads7846_platform_data ads_info = {
214 .vref_delay_usecs = 100,
217 .pressure_max = 15000,
220 .debounce_tol = (~0),
221 .get_pendown_state = ads7843_pendown_state,
224 static void __init ek_add_device_ts(void)
226 at91_set_B_periph(AT91_PIN_PC2, 1); /* External IRQ0, with pullup */
227 at91_set_gpio_input(AT91_PIN_PA11, 1); /* Touchscreen BUSY signal */
230 static void __init ek_add_device_ts(void) {}
236 static struct spi_board_info ek_spi_devices[] = {
237 { /* DataFlash chip */
238 .modalias = "mtd_dataflash",
240 .max_speed_hz = 15 * 1000 * 1000,
243 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
245 .modalias = "ads7846",
247 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
249 .platform_data = &ads_info,
250 .irq = AT91SAM9261_ID_IRQ0,
253 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
254 { /* DataFlash card - jumper (J12) configurable to CS3 or CS0 */
255 .modalias = "mtd_dataflash",
257 .max_speed_hz = 15 * 1000 * 1000,
260 #elif defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
262 .modalias = "at73c213",
264 .max_speed_hz = 10 * 1000 * 1000,
271 static void __init ek_board_init(void)
274 at91_add_device_serial();
276 at91_add_device_usbh(&ek_usbh_data);
278 at91_add_device_udc(&ek_udc_data);
280 at91_add_device_i2c();
282 at91_add_device_nand(&ek_nand_data);
283 /* DM9000 ethernet */
284 ek_add_device_dm9000();
286 /* spi0 and mmc/sd share the same PIO pins */
287 #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE)
289 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
294 at91_add_device_mmc(0, &ek_mmc_data);
298 MACHINE_START(AT91SAM9261EK, "Atmel AT91SAM9261-EK")
299 /* Maintainer: Atmel */
300 .phys_io = AT91_BASE_SYS,
301 .io_pg_offst = (AT91_VA_BASE_SYS >> 18) & 0xfffc,
302 .boot_params = AT91_SDRAM_BASE + 0x100,
303 .timer = &at91sam926x_timer,
305 .init_irq = ek_init_irq,
306 .init_machine = ek_board_init,