2 * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
3 * Copyright (C) 2009 Sascha Hauer (kernel@pengutronix.de)
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
20 #include <linux/platform_device.h>
22 #include <linux/i2c.h>
23 #include <linux/i2c/at24.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/spi/spi.h>
26 #include <linux/spi/eeprom.h>
27 #include <linux/irq.h>
28 #include <linux/delay.h>
29 #include <linux/gpio.h>
30 #include <linux/usb/otg.h>
31 #include <linux/usb/ulpi.h>
33 #include <asm/mach/arch.h>
34 #include <asm/mach-types.h>
35 #include <mach/common.h>
36 #include <mach/hardware.h>
37 #include <mach/iomux-mx27.h>
38 #include <asm/mach/time.h>
39 #include <mach/irqs.h>
40 #include <mach/ulpi.h>
42 #include "devices-imx27.h"
44 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
45 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
46 #define SPI1_SS0 (GPIO_PORTD + 28)
47 #define SPI1_SS1 (GPIO_PORTD + 27)
48 #define SD2_CD (GPIO_PORTC + 29)
50 static const int pca100_pins[] __initconst = {
63 SD2_CD | GPIO_GPIO | GPIO_IN,
100 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
104 PC10_PF_USBOTG_DATA2,
105 PC11_PF_USBOTG_DATA1,
106 PC12_PF_USBOTG_DATA4,
107 PC13_PF_USBOTG_DATA3,
112 PE25_PF_USBOTG_DATA7,
114 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
152 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
153 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
154 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
157 static const struct imxuart_platform_data uart_pdata __initconst = {
158 .flags = IMXUART_HAVE_RTSCTS,
161 static const struct mxc_nand_platform_data
162 pca100_nand_board_info __initconst = {
167 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
171 static struct at24_platform_data board_eeprom = {
174 .flags = AT24_FLAG_ADDR16,
177 static struct i2c_board_info pca100_i2c_devices[] = {
179 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
180 .platform_data = &board_eeprom,
182 I2C_BOARD_INFO("pcf8563", 0x51),
184 I2C_BOARD_INFO("lm75", 0x4a),
188 static struct spi_eeprom at25320 = {
195 static struct spi_board_info pca100_spi_board_info[] __initdata = {
198 .max_speed_hz = 30000,
201 .platform_data = &at25320,
205 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
207 static const struct spi_imx_master pca100_spi0_data __initconst = {
208 .chipselect = pca100_spi_cs,
209 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
212 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
214 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
215 gpio_set_value(GPIO_PORTC + 20, 1);
217 gpio_set_value(GPIO_PORTC + 20, 0);
218 mxc_gpio_mode(PC20_PF_SSI1_FS);
222 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
224 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
225 gpio_set_value(GPIO_PORTC + 20, 0);
226 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
227 gpio_set_value(GPIO_PORTC + 22, 0);
228 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
229 gpio_set_value(GPIO_PORTC + 28, 0);
231 gpio_set_value(GPIO_PORTC + 28, 1);
232 mxc_gpio_mode(PC20_PF_SSI1_FS);
233 mxc_gpio_mode(PC22_PF_SSI1_TXD);
237 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
238 .ac97_reset = pca100_ac97_cold_reset,
239 .ac97_warm_reset = pca100_ac97_warm_reset,
240 .flags = IMX_SSI_USE_AC97,
243 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
248 ret = request_irq(IRQ_GPIOC(29), detect_irq,
249 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
250 "imx-mmc-detect", data);
253 "pca100: Failed to reuest irq for sd/mmc detection\n");
258 static void pca100_sdhc2_exit(struct device *dev, void *data)
260 free_irq(IRQ_GPIOC(29), data);
263 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
264 .init = pca100_sdhc2_init,
265 .exit = pca100_sdhc2_exit,
268 static int otg_phy_init(struct platform_device *pdev)
270 gpio_set_value(OTG_PHY_CS_GPIO, 0);
274 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
277 static struct mxc_usbh_platform_data otg_pdata __initdata = {
278 .init = otg_phy_init,
279 .portsc = MXC_EHCI_MODE_ULPI,
282 static int usbh2_phy_init(struct platform_device *pdev)
284 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
288 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
291 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
292 .init = usbh2_phy_init,
293 .portsc = MXC_EHCI_MODE_ULPI,
296 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
297 .operating_mode = FSL_USB2_DR_DEVICE,
298 .phy_mode = FSL_USB2_PHY_ULPI,
301 static int otg_mode_host;
303 static int __init pca100_otg_mode(char *options)
305 if (!strcmp(options, "host"))
307 else if (!strcmp(options, "device"))
310 pr_info("otg_mode neither \"host\" nor \"device\". "
311 "Defaulting to device\n");
314 __setup("otg_mode=", pca100_otg_mode);
316 /* framebuffer info */
317 static struct imx_fb_videomode pca100_fb_modes[] = {
320 .name = "EMERGING-ETV570G0DHU",
324 .pixclock = 39722, /* in ps (25.175 MHz) */
334 * Pixel pol active high
337 * use HSYNC for ACD count
338 * line clock disable while idle
339 * always enable line clock even if no data
346 static const struct imx_fb_platform_data pca100_fb_data __initconst = {
347 .mode = pca100_fb_modes,
348 .num_modes = ARRAY_SIZE(pca100_fb_modes),
355 static void __init pca100_init(void)
361 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
362 ARRAY_SIZE(pca100_pins), "PCA100");
364 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
366 imx27_add_imx_ssi(0, &pca100_ssi_pdata);
368 imx27_add_imx_uart0(&uart_pdata);
370 imx27_add_mxc_mmc(1, &sdhc_pdata);
372 imx27_add_mxc_nand(&pca100_nand_board_info);
374 /* only the i2c master 1 is used on this CPU card */
375 i2c_register_board_info(1, pca100_i2c_devices,
376 ARRAY_SIZE(pca100_i2c_devices));
378 imx27_add_imx_i2c(1, &pca100_i2c1_data);
380 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
381 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
382 spi_register_board_info(pca100_spi_board_info,
383 ARRAY_SIZE(pca100_spi_board_info));
384 imx27_add_spi_imx0(&pca100_spi0_data);
386 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
387 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
388 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
389 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
392 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
393 ULPI_OTG_DRVVBUS_EXT);
396 imx27_add_mxc_ehci_otg(&otg_pdata);
398 gpio_set_value(OTG_PHY_CS_GPIO, 0);
399 imx27_add_fsl_usb2_udc(&otg_device_pdata);
402 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
403 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
406 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
408 imx27_add_imx_fb(&pca100_fb_data);
411 imx27_add_imx2_wdt(NULL);
412 imx27_add_mxc_w1(NULL);
415 static void __init pca100_timer_init(void)
417 mx27_clocks_init(26000000);
420 static struct sys_timer pca100_timer = {
421 .init = pca100_timer_init,
424 MACHINE_START(PCA100, "phyCARD-i.MX27")
425 .atag_offset = 0x100,
426 .map_io = mx27_map_io,
427 .init_early = imx27_init_early,
428 .init_irq = mx27_init_irq,
429 .handle_irq = imx27_handle_irq,
430 .init_machine = pca100_init,
431 .timer = &pca100_timer,
432 .restart = mxc_restart,