2 * linux/arch/arm/mach-at91/board-usb-a926x.c
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2007 Atmel Corporation.
6 * Copyright (C) 2007 Calao-systems
7 * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 #include <linux/types.h>
25 #include <linux/init.h>
27 #include <linux/module.h>
28 #include <linux/platform_device.h>
29 #include <linux/spi/spi.h>
30 #include <linux/gpio_keys.h>
31 #include <linux/gpio.h>
32 #include <linux/input.h>
33 #include <linux/spi/mmc_spi.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/hardware.h>
44 #include <mach/board.h>
45 #include <mach/at91sam9_smc.h>
46 #include <mach/at91_shdwc.h>
52 static void __init ek_init_early(void)
54 /* Initialize processor: 12.00 MHz crystal */
55 at91_initialize(12000000);
61 static struct at91_usbh_data __initdata ek_usbh_data = {
63 .vbus_pin = {-EINVAL, -EINVAL},
64 .overcurrent_pin= {-EINVAL, -EINVAL},
70 static struct at91_udc_data __initdata ek_udc_data = {
71 .vbus_pin = AT91_PIN_PB11,
72 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
75 static void __init ek_add_device_udc(void)
77 if (machine_is_usb_a9260() || machine_is_usb_a9g20())
78 ek_udc_data.vbus_pin = AT91_PIN_PC5;
80 at91_add_device_udc(&ek_udc_data);
83 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
84 #define MMC_SPI_CARD_DETECT_INT AT91_PIN_PC4
85 static int at91_mmc_spi_init(struct device *dev,
86 irqreturn_t (*detect_int)(int, void *), void *data)
88 /* Configure Interrupt pin as input, no pull-up */
89 at91_set_gpio_input(MMC_SPI_CARD_DETECT_INT, 0);
90 return request_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT), detect_int,
91 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
92 "mmc-spi-detect", data);
95 static void at91_mmc_spi_exit(struct device *dev, void *data)
97 free_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT), data);
100 static struct mmc_spi_platform_data at91_mmc_spi_pdata = {
101 .init = at91_mmc_spi_init,
102 .exit = at91_mmc_spi_exit,
103 .detect_delay = 100, /* msecs */
110 static struct spi_board_info usb_a9263_spi_devices[] = {
111 #if !defined(CONFIG_MMC_AT91)
112 { /* DataFlash chip */
113 .modalias = "mtd_dataflash",
115 .max_speed_hz = 15 * 1000 * 1000,
121 static struct spi_board_info usb_a9g20_spi_devices[] = {
122 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
124 .modalias = "mmc_spi",
125 .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
128 .platform_data = &at91_mmc_spi_pdata,
134 static void __init ek_add_device_spi(void)
136 if (machine_is_usb_a9263())
137 at91_add_device_spi(usb_a9263_spi_devices, ARRAY_SIZE(usb_a9263_spi_devices));
138 else if (machine_is_usb_a9g20())
139 at91_add_device_spi(usb_a9g20_spi_devices, ARRAY_SIZE(usb_a9g20_spi_devices));
143 * MACB Ethernet device
145 static struct macb_platform_data __initdata ek_macb_data = {
146 .phy_irq_pin = AT91_PIN_PE31,
150 static void __init ek_add_device_eth(void)
152 if (machine_is_usb_a9260() || machine_is_usb_a9g20())
153 ek_macb_data.phy_irq_pin = AT91_PIN_PA31;
155 at91_add_device_eth(&ek_macb_data);
161 static struct mtd_partition __initdata ek_nand_partition[] = {
167 .name = "bareboxenv",
168 .offset = MTDPART_OFS_NXTBLK,
171 .name = "bareboxenv2",
172 .offset = MTDPART_OFS_NXTBLK,
176 .offset = MTDPART_OFS_NXTBLK,
180 .offset = MTDPART_OFS_NXTBLK,
184 .offset = MTDPART_OFS_NXTBLK,
185 .size = MTDPART_SIZ_FULL,
189 static struct atmel_nand_data __initdata ek_nand_data = {
193 .rdy_pin = AT91_PIN_PA22,
194 .enable_pin = AT91_PIN_PD15,
195 .ecc_mode = NAND_ECC_SOFT,
197 .parts = ek_nand_partition,
198 .num_parts = ARRAY_SIZE(ek_nand_partition),
201 static struct sam9_smc_config __initdata usb_a9260_nand_smc_config = {
204 .ncs_write_setup = 0,
209 .ncs_write_pulse = 3,
215 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
219 static struct sam9_smc_config __initdata usb_a9g20_nand_smc_config = {
222 .ncs_write_setup = 0,
227 .ncs_write_pulse = 4,
233 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
237 static void __init ek_add_device_nand(void)
239 if (machine_is_usb_a9260() || machine_is_usb_a9g20()) {
240 ek_nand_data.rdy_pin = AT91_PIN_PC13;
241 ek_nand_data.enable_pin = AT91_PIN_PC14;
244 /* configure chip-select 3 (NAND) */
245 if (machine_is_usb_a9g20())
246 sam9_smc_configure(0, 3, &usb_a9g20_nand_smc_config);
248 sam9_smc_configure(0, 3, &usb_a9260_nand_smc_config);
250 at91_add_device_nand(&ek_nand_data);
257 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
258 static struct gpio_keys_button ek_buttons[] = {
259 { /* USER PUSH BUTTON */
261 .gpio = AT91_PIN_PB10,
268 static struct gpio_keys_platform_data ek_button_data = {
269 .buttons = ek_buttons,
270 .nbuttons = ARRAY_SIZE(ek_buttons),
273 static struct platform_device ek_button_device = {
278 .platform_data = &ek_button_data,
282 static void __init ek_add_device_buttons(void)
284 at91_set_GPIO_periph(AT91_PIN_PB10, 1); /* user push button, pull up enabled */
285 at91_set_deglitch(AT91_PIN_PB10, 1);
287 platform_device_register(&ek_button_device);
290 static void __init ek_add_device_buttons(void) {}
296 static struct gpio_led ek_leds[] = {
297 { /* user_led (green) */
299 .gpio = AT91_PIN_PB21,
301 .default_trigger = "heartbeat",
305 static struct i2c_board_info __initdata ek_i2c_devices[] = {
307 I2C_BOARD_INFO("rv3029c2", 0x56),
311 static void __init ek_add_device_leds(void)
313 if (machine_is_usb_a9260() || machine_is_usb_a9g20())
314 ek_leds[0].active_low = 0;
316 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
319 static void __init ek_board_init(void)
322 /* DBGU on ttyS0. (Rx & Tx only) */
323 at91_register_uart(0, 0, 0);
324 at91_add_device_serial();
326 at91_add_device_usbh(&ek_usbh_data);
334 ek_add_device_nand();
336 ek_add_device_buttons();
338 ek_add_device_leds();
340 if (machine_is_usb_a9g20()) {
342 at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
345 at91_add_device_i2c(NULL, 0);
346 /* shutdown controller, wakeup button (5 msec low) */
347 at91_shdwc_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10)
348 | AT91_SHDW_WKMODE0_LOW
349 | AT91_SHDW_RTTWKEN);
353 MACHINE_START(USB_A9263, "CALAO USB_A9263")
354 /* Maintainer: calao-systems */
355 .timer = &at91sam926x_timer,
356 .map_io = at91_map_io,
357 .init_early = ek_init_early,
358 .init_irq = at91_init_irq_default,
359 .init_machine = ek_board_init,
362 MACHINE_START(USB_A9260, "CALAO USB_A9260")
363 /* Maintainer: calao-systems */
364 .timer = &at91sam926x_timer,
365 .map_io = at91_map_io,
366 .init_early = ek_init_early,
367 .init_irq = at91_init_irq_default,
368 .init_machine = ek_board_init,
371 MACHINE_START(USB_A9G20, "CALAO USB_A92G0")
372 /* Maintainer: Jean-Christophe PLAGNIOL-VILLARD */
373 .timer = &at91sam926x_timer,
374 .map_io = at91_map_io,
375 .init_early = ek_init_early,
376 .init_irq = at91_init_irq_default,
377 .init_machine = ek_board_init,