2 * linux/arch/arm/mach-at91/board-sam9263ek.c
4 * Copyright (C) 2005 SAN People
5 * Copyright (C) 2007 Atmel Corporation.
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/gpio.h>
24 #include <linux/init.h>
26 #include <linux/module.h>
27 #include <linux/platform_device.h>
28 #include <linux/spi/spi.h>
29 #include <linux/spi/ads7846.h>
30 #include <linux/platform_data/at24.h>
32 #include <linux/gpio_keys.h>
33 #include <linux/input.h>
34 #include <linux/leds.h>
35 #include <linux/pwm.h>
36 #include <linux/leds_pwm.h>
38 #include <video/atmel_lcdc.h>
40 #include <asm/setup.h>
41 #include <asm/mach-types.h>
44 #include <asm/mach/arch.h>
45 #include <asm/mach/map.h>
46 #include <asm/mach/irq.h>
48 #include <mach/hardware.h>
49 #include <mach/at91sam9_smc.h>
50 #include <mach/system_rev.h>
53 #include "at91_shdwc.h"
60 static void __init ek_init_early(void)
62 /* Initialize processor: 16.367 MHz crystal */
63 at91_initialize(16367660);
69 static struct at91_usbh_data __initdata ek_usbh_data = {
71 .vbus_pin = { AT91_PIN_PA24, AT91_PIN_PA21 },
72 .vbus_pin_active_low = {1, 1},
73 .overcurrent_pin= {-EINVAL, -EINVAL},
79 static struct at91_udc_data __initdata ek_udc_data = {
80 .vbus_pin = AT91_PIN_PA25,
81 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
88 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
89 static int ads7843_pendown_state(void)
91 return !at91_get_gpio_value(AT91_PIN_PA15); /* Touchscreen PENIRQ */
94 static struct ads7846_platform_data ads_info = {
100 .vref_delay_usecs = 100,
103 .pressure_max = 15000,
106 .debounce_tol = (~0),
107 .get_pendown_state = ads7843_pendown_state,
110 static void __init ek_add_device_ts(void)
112 at91_set_B_periph(AT91_PIN_PA15, 1); /* External IRQ1, with pullup */
113 at91_set_gpio_input(AT91_PIN_PA31, 1); /* Touchscreen BUSY signal */
116 static void __init ek_add_device_ts(void) {}
122 static struct spi_board_info ek_spi_devices[] = {
123 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
124 { /* DataFlash card */
125 .modalias = "mtd_dataflash",
127 .max_speed_hz = 15 * 1000 * 1000,
131 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
133 .modalias = "ads7846",
135 .max_speed_hz = 125000 * 26, /* (max sample rate @ 3V) * (cmd + data + overhead) */
137 .platform_data = &ads_info,
138 .irq = NR_IRQS_LEGACY + AT91SAM9263_ID_IRQ1,
147 static struct mci_platform_data __initdata mci1_data = {
150 .detect_pin = AT91_PIN_PE18,
151 .wp_pin = AT91_PIN_PE19,
157 * MACB Ethernet device
159 static struct macb_platform_data __initdata ek_macb_data = {
160 .phy_irq_pin = AT91_PIN_PE31,
168 static struct mtd_partition __initdata ek_nand_partition[] = {
170 .name = "Partition 1",
175 .name = "Partition 2",
176 .offset = MTDPART_OFS_NXTBLK,
177 .size = MTDPART_SIZ_FULL,
181 static struct atmel_nand_data __initdata ek_nand_data = {
185 .rdy_pin = AT91_PIN_PA22,
186 .enable_pin = AT91_PIN_PD15,
187 .ecc_mode = NAND_ECC_SOFT,
189 .parts = ek_nand_partition,
190 .num_parts = ARRAY_SIZE(ek_nand_partition),
193 static struct sam9_smc_config __initdata ek_nand_smc_config = {
196 .ncs_write_setup = 0,
201 .ncs_write_pulse = 3,
207 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
211 static void __init ek_add_device_nand(void)
213 ek_nand_data.bus_width_16 = board_have_nand_16bit();
214 /* setup bus-width (8 or 16) */
215 if (ek_nand_data.bus_width_16)
216 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
218 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
220 /* configure chip-select 3 (NAND) */
221 sam9_smc_configure(0, 3, &ek_nand_smc_config);
223 at91_add_device_nand(&ek_nand_data);
230 static struct at24_platform_data at24c512 = {
231 .byte_len = SZ_512K / 8,
233 .flags = AT24_FLAG_ADDR16,
237 static struct i2c_board_info __initdata ek_i2c_devices[] = {
239 I2C_BOARD_INFO("24c512", 0x50),
240 .platform_data = &at24c512,
242 /* more devices can be added using expansion connectors */
248 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
249 static struct fb_videomode at91_tft_vga_modes[] = {
251 .name = "TX09D50VM1CCA @ 60",
253 .xres = 240, .yres = 320,
254 .pixclock = KHZ2PICOS(4965),
256 .left_margin = 1, .right_margin = 33,
257 .upper_margin = 1, .lower_margin = 0,
258 .hsync_len = 5, .vsync_len = 1,
260 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
261 .vmode = FB_VMODE_NONINTERLACED,
265 static struct fb_monspecs at91fb_default_monspecs = {
266 .manufacturer = "HIT",
267 .monitor = "TX09D70VM1CCA",
269 .modedb = at91_tft_vga_modes,
270 .modedb_len = ARRAY_SIZE(at91_tft_vga_modes),
277 #define AT91SAM9263_DEFAULT_LCDCON2 (ATMEL_LCDC_MEMOR_LITTLE \
278 | ATMEL_LCDC_DISTYPE_TFT \
279 | ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
281 static void at91_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on)
283 at91_set_gpio_value(AT91_PIN_PA30, on);
287 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
288 .lcdcon_is_backlight = true,
290 .default_dmacon = ATMEL_LCDC_DMAEN,
291 .default_lcdcon2 = AT91SAM9263_DEFAULT_LCDCON2,
292 .default_monspecs = &at91fb_default_monspecs,
293 .atmel_lcdfb_power_control = at91_lcdc_power_control,
298 static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
305 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
306 static struct gpio_keys_button ek_buttons[] = {
307 { /* BP1, "leftclic" */
309 .gpio = AT91_PIN_PC5,
311 .desc = "left_click",
314 { /* BP2, "rightclic" */
316 .gpio = AT91_PIN_PC4,
318 .desc = "right_click",
323 static struct gpio_keys_platform_data ek_button_data = {
324 .buttons = ek_buttons,
325 .nbuttons = ARRAY_SIZE(ek_buttons),
328 static struct platform_device ek_button_device = {
333 .platform_data = &ek_button_data,
337 static void __init ek_add_device_buttons(void)
339 at91_set_GPIO_periph(AT91_PIN_PC5, 1); /* left button */
340 at91_set_deglitch(AT91_PIN_PC5, 1);
341 at91_set_GPIO_periph(AT91_PIN_PC4, 1); /* right button */
342 at91_set_deglitch(AT91_PIN_PC4, 1);
344 platform_device_register(&ek_button_device);
347 static void __init ek_add_device_buttons(void) {}
353 * reset_pin is not connected: NRST
355 static struct ac97c_platform_data ek_ac97_data = {
356 .reset_pin = -EINVAL,
361 * LEDs ... these could all be PWM-driven, for variable brightness
363 static struct gpio_led ek_leds[] = {
364 { /* "right" led, green, userled2 (could be driven by pwm2) */
366 .gpio = AT91_PIN_PC29,
368 .default_trigger = "nand-disk",
370 { /* "power" led, yellow (could be driven by pwm0) */
372 .gpio = AT91_PIN_PB7,
373 .default_trigger = "heartbeat",
375 #if !IS_ENABLED(CONFIG_LEDS_PWM)
378 .gpio = AT91_PIN_PB8,
380 .default_trigger = "none",
388 static struct pwm_lookup pwm_lookup[] = {
389 PWM_LOOKUP("at91sam9rl-pwm", 1, "leds_pwm", "ds1",
390 5000, PWM_POLARITY_INVERSED),
393 #if IS_ENABLED(CONFIG_LEDS_PWM)
394 static struct led_pwm pwm_leds[] = {
397 .max_brightness = 255,
401 static struct led_pwm_platform_data pwm_data = {
402 .num_leds = ARRAY_SIZE(pwm_leds),
406 static struct platform_device leds_pwm = {
410 .platform_data = &pwm_data,
419 static void sam9263ek_transceiver_switch(int on)
422 at91_set_gpio_output(AT91_PIN_PA18, 1); /* CANRXEN */
423 at91_set_gpio_output(AT91_PIN_PA19, 0); /* CANRS */
425 at91_set_gpio_output(AT91_PIN_PA18, 0); /* CANRXEN */
426 at91_set_gpio_output(AT91_PIN_PA19, 1); /* CANRS */
430 static struct at91_can_data ek_can_data = {
431 .transceiver_switch = sam9263ek_transceiver_switch,
434 static struct platform_device *devices[] __initdata = {
435 #if IS_ENABLED(CONFIG_LEDS_PWM)
440 static void __init ek_board_init(void)
443 /* DBGU on ttyS0. (Rx & Tx only) */
444 at91_register_uart(0, 0, 0);
446 /* USART0 on ttyS1. (Rx, Tx, RTS, CTS) */
447 at91_register_uart(AT91SAM9263_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS);
448 at91_add_device_serial();
450 at91_add_device_usbh(&ek_usbh_data);
452 at91_add_device_udc(&ek_udc_data);
454 at91_set_gpio_output(AT91_PIN_PE20, 1); /* select spi0 clock */
455 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
459 at91_add_device_mci(1, &mci1_data);
461 at91_add_device_eth(&ek_macb_data);
463 ek_add_device_nand();
465 at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
467 at91_add_device_lcdc(&ek_lcdc_data);
469 ek_add_device_buttons();
471 at91_add_device_ac97(&ek_ac97_data);
473 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
474 pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
475 #if IS_ENABLED(CONFIG_LEDS_PWM)
476 at91_add_device_pwm(1 << AT91_PWM1);
479 at91_add_device_can(&ek_can_data);
480 /* Other platform devices */
481 platform_add_devices(devices, ARRAY_SIZE(devices));
484 MACHINE_START(AT91SAM9263EK, "Atmel AT91SAM9263-EK")
485 /* Maintainer: Atmel */
486 .init_time = at91sam926x_pit_init,
487 .map_io = at91_map_io,
488 .handle_irq = at91_aic_handle_irq,
489 .init_early = ek_init_early,
490 .init_irq = at91_init_irq_default,
491 .init_machine = ek_board_init,