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/at91sam9_smc.h>
47 #include "at91_shdwc.h"
53 static void __init
ek_init_early(void)
55 /* Initialize processor: 12.00 MHz crystal */
56 at91_initialize(12000000);
62 static struct at91_usbh_data __initdata ek_usbh_data
= {
64 .vbus_pin
= {-EINVAL
, -EINVAL
},
65 .overcurrent_pin
= {-EINVAL
, -EINVAL
},
71 static struct at91_udc_data __initdata ek_udc_data
= {
72 .vbus_pin
= AT91_PIN_PB11
,
73 .pullup_pin
= -EINVAL
, /* pull-up driven by UDC */
76 static void __init
ek_add_device_udc(void)
78 if (machine_is_usb_a9260() || machine_is_usb_a9g20())
79 ek_udc_data
.vbus_pin
= AT91_PIN_PC5
;
81 at91_add_device_udc(&ek_udc_data
);
84 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
85 #define MMC_SPI_CARD_DETECT_INT AT91_PIN_PC4
86 static int at91_mmc_spi_init(struct device
*dev
,
87 irqreturn_t (*detect_int
)(int, void *), void *data
)
89 /* Configure Interrupt pin as input, no pull-up */
90 at91_set_gpio_input(MMC_SPI_CARD_DETECT_INT
, 0);
91 return request_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT
), detect_int
,
92 IRQF_TRIGGER_FALLING
| IRQF_TRIGGER_RISING
,
93 "mmc-spi-detect", data
);
96 static void at91_mmc_spi_exit(struct device
*dev
, void *data
)
98 free_irq(gpio_to_irq(MMC_SPI_CARD_DETECT_INT
), data
);
101 static struct mmc_spi_platform_data at91_mmc_spi_pdata
= {
102 .init
= at91_mmc_spi_init
,
103 .exit
= at91_mmc_spi_exit
,
104 .detect_delay
= 100, /* msecs */
111 static struct spi_board_info usb_a9263_spi_devices
[] = {
112 { /* DataFlash chip */
113 .modalias
= "mtd_dataflash",
115 .max_speed_hz
= 15 * 1000 * 1000,
120 static struct spi_board_info usb_a9g20_spi_devices
[] = {
121 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
123 .modalias
= "mmc_spi",
124 .max_speed_hz
= 20000000, /* max spi clock (SCK) speed in HZ */
127 .platform_data
= &at91_mmc_spi_pdata
,
133 static void __init
ek_add_device_spi(void)
135 if (machine_is_usb_a9263())
136 at91_add_device_spi(usb_a9263_spi_devices
, ARRAY_SIZE(usb_a9263_spi_devices
));
137 else if (machine_is_usb_a9g20())
138 at91_add_device_spi(usb_a9g20_spi_devices
, ARRAY_SIZE(usb_a9g20_spi_devices
));
142 * MACB Ethernet device
144 static struct macb_platform_data __initdata ek_macb_data
= {
145 .phy_irq_pin
= AT91_PIN_PE31
,
149 static void __init
ek_add_device_eth(void)
151 if (machine_is_usb_a9260() || machine_is_usb_a9g20())
152 ek_macb_data
.phy_irq_pin
= AT91_PIN_PA31
;
154 at91_add_device_eth(&ek_macb_data
);
160 static struct mtd_partition __initdata ek_nand_partition
[] = {
166 .name
= "bareboxenv",
167 .offset
= MTDPART_OFS_NXTBLK
,
170 .name
= "bareboxenv2",
171 .offset
= MTDPART_OFS_NXTBLK
,
175 .offset
= MTDPART_OFS_NXTBLK
,
179 .offset
= MTDPART_OFS_NXTBLK
,
183 .offset
= MTDPART_OFS_NXTBLK
,
187 .offset
= MTDPART_OFS_NXTBLK
,
188 .size
= MTDPART_SIZ_FULL
,
192 static struct atmel_nand_data __initdata ek_nand_data
= {
196 .rdy_pin
= AT91_PIN_PA22
,
197 .enable_pin
= AT91_PIN_PD15
,
198 .ecc_mode
= NAND_ECC_SOFT
,
200 .parts
= ek_nand_partition
,
201 .num_parts
= ARRAY_SIZE(ek_nand_partition
),
204 static struct sam9_smc_config __initdata usb_a9260_nand_smc_config
= {
207 .ncs_write_setup
= 0,
212 .ncs_write_pulse
= 3,
218 .mode
= AT91_SMC_READMODE
| AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE
| AT91_SMC_DBW_8
,
222 static struct sam9_smc_config __initdata usb_a9g20_nand_smc_config
= {
225 .ncs_write_setup
= 0,
230 .ncs_write_pulse
= 4,
236 .mode
= AT91_SMC_READMODE
| AT91_SMC_WRITEMODE
| AT91_SMC_EXNWMODE_DISABLE
| AT91_SMC_DBW_8
,
240 static void __init
ek_add_device_nand(void)
242 if (machine_is_usb_a9260() || machine_is_usb_a9g20()) {
243 ek_nand_data
.rdy_pin
= AT91_PIN_PC13
;
244 ek_nand_data
.enable_pin
= AT91_PIN_PC14
;
247 /* configure chip-select 3 (NAND) */
248 if (machine_is_usb_a9g20())
249 sam9_smc_configure(0, 3, &usb_a9g20_nand_smc_config
);
251 sam9_smc_configure(0, 3, &usb_a9260_nand_smc_config
);
253 at91_add_device_nand(&ek_nand_data
);
260 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
261 static struct gpio_keys_button ek_buttons
[] = {
262 { /* USER PUSH BUTTON */
264 .gpio
= AT91_PIN_PB10
,
271 static struct gpio_keys_platform_data ek_button_data
= {
272 .buttons
= ek_buttons
,
273 .nbuttons
= ARRAY_SIZE(ek_buttons
),
276 static struct platform_device ek_button_device
= {
281 .platform_data
= &ek_button_data
,
285 static void __init
ek_add_device_buttons(void)
287 at91_set_GPIO_periph(AT91_PIN_PB10
, 1); /* user push button, pull up enabled */
288 at91_set_deglitch(AT91_PIN_PB10
, 1);
290 platform_device_register(&ek_button_device
);
293 static void __init
ek_add_device_buttons(void) {}
299 static struct gpio_led ek_leds
[] = {
300 { /* user_led (green) */
302 .gpio
= AT91_PIN_PB21
,
304 .default_trigger
= "heartbeat",
308 static struct i2c_board_info __initdata ek_i2c_devices
[] = {
310 I2C_BOARD_INFO("rv3029c2", 0x56),
314 static void __init
ek_add_device_leds(void)
316 if (machine_is_usb_a9260() || machine_is_usb_a9g20())
317 ek_leds
[0].active_low
= 0;
319 at91_gpio_leds(ek_leds
, ARRAY_SIZE(ek_leds
));
322 static void __init
ek_board_init(void)
325 /* DBGU on ttyS0. (Rx & Tx only) */
326 at91_register_uart(0, 0, 0);
327 at91_add_device_serial();
329 at91_add_device_usbh(&ek_usbh_data
);
337 ek_add_device_nand();
339 ek_add_device_buttons();
341 ek_add_device_leds();
343 if (machine_is_usb_a9g20()) {
345 at91_add_device_i2c(ek_i2c_devices
, ARRAY_SIZE(ek_i2c_devices
));
348 at91_add_device_i2c(NULL
, 0);
349 /* shutdown controller, wakeup button (5 msec low) */
350 at91_shdwc_write(AT91_SHDW_MR
, AT91_SHDW_CPTWK0_(10)
351 | AT91_SHDW_WKMODE0_LOW
352 | AT91_SHDW_RTTWKEN
);
356 MACHINE_START(USB_A9263
, "CALAO USB_A9263")
357 /* Maintainer: calao-systems */
358 .timer
= &at91sam926x_timer
,
359 .map_io
= at91_map_io
,
360 .handle_irq
= at91_aic_handle_irq
,
361 .init_early
= ek_init_early
,
362 .init_irq
= at91_init_irq_default
,
363 .init_machine
= ek_board_init
,
366 MACHINE_START(USB_A9260
, "CALAO USB_A9260")
367 /* Maintainer: calao-systems */
368 .timer
= &at91sam926x_timer
,
369 .map_io
= at91_map_io
,
370 .handle_irq
= at91_aic_handle_irq
,
371 .init_early
= ek_init_early
,
372 .init_irq
= at91_init_irq_default
,
373 .init_machine
= ek_board_init
,
376 MACHINE_START(USB_A9G20
, "CALAO USB_A92G0")
377 /* Maintainer: Jean-Christophe PLAGNIOL-VILLARD */
378 .timer
= &at91sam926x_timer
,
379 .map_io
= at91_map_io
,
380 .handle_irq
= at91_aic_handle_irq
,
381 .init_early
= ek_init_early
,
382 .init_irq
= at91_init_irq_default
,
383 .init_machine
= ek_board_init
,