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/property.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 <asm/mach/time.h>
38 #include "devices-imx27.h"
41 #include "iomux-mx27.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 const struct property_entry board_eeprom_properties[] = {
172 PROPERTY_ENTRY_U32("pagesize", 32),
176 static struct i2c_board_info pca100_i2c_devices[] = {
178 I2C_BOARD_INFO("24c32", 0x52), /* E0=0, E1=1, E2=0 */
179 .properties = board_eeprom_properties,
181 I2C_BOARD_INFO("pcf8563", 0x51),
183 I2C_BOARD_INFO("lm75", 0x4a),
187 static struct spi_eeprom at25320 = {
194 static struct spi_board_info pca100_spi_board_info[] __initdata = {
197 .max_speed_hz = 30000,
200 .platform_data = &at25320,
204 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
206 static const struct spi_imx_master pca100_spi0_data __initconst = {
207 .chipselect = pca100_spi_cs,
208 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
211 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
213 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
214 gpio_set_value(GPIO_PORTC + 20, 1);
216 gpio_set_value(GPIO_PORTC + 20, 0);
217 mxc_gpio_mode(PC20_PF_SSI1_FS);
221 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
223 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
224 gpio_set_value(GPIO_PORTC + 20, 0);
225 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
226 gpio_set_value(GPIO_PORTC + 22, 0);
227 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
228 gpio_set_value(GPIO_PORTC + 28, 0);
230 gpio_set_value(GPIO_PORTC + 28, 1);
231 mxc_gpio_mode(PC20_PF_SSI1_FS);
232 mxc_gpio_mode(PC22_PF_SSI1_TXD);
236 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
237 .ac97_reset = pca100_ac97_cold_reset,
238 .ac97_warm_reset = pca100_ac97_warm_reset,
239 .flags = IMX_SSI_USE_AC97,
242 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
247 ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq,
248 IRQF_TRIGGER_FALLING, "imx-mmc-detect", data);
251 "pca100: Failed to request irq for sd/mmc detection\n");
256 static void pca100_sdhc2_exit(struct device *dev, void *data)
258 free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data);
261 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
262 .init = pca100_sdhc2_init,
263 .exit = pca100_sdhc2_exit,
266 static int otg_phy_init(struct platform_device *pdev)
268 gpio_set_value(OTG_PHY_CS_GPIO, 0);
272 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
275 static struct mxc_usbh_platform_data otg_pdata __initdata = {
276 .init = otg_phy_init,
277 .portsc = MXC_EHCI_MODE_ULPI,
280 static int usbh2_phy_init(struct platform_device *pdev)
282 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
286 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
289 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
290 .init = usbh2_phy_init,
291 .portsc = MXC_EHCI_MODE_ULPI,
294 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
295 .operating_mode = FSL_USB2_DR_DEVICE,
296 .phy_mode = FSL_USB2_PHY_ULPI,
299 static bool otg_mode_host __initdata;
301 static int __init pca100_otg_mode(char *options)
303 if (!strcmp(options, "host"))
304 otg_mode_host = true;
305 else if (!strcmp(options, "device"))
306 otg_mode_host = false;
308 pr_info("otg_mode neither \"host\" nor \"device\". "
309 "Defaulting to device\n");
312 __setup("otg_mode=", pca100_otg_mode);
314 /* framebuffer info */
315 static struct imx_fb_videomode pca100_fb_modes[] = {
318 .name = "EMERGING-ETV570G0DHU",
322 .pixclock = 39722, /* in ps (25.175 MHz) */
332 * Pixel pol active high
335 * use HSYNC for ACD count
336 * line clock disable while idle
337 * always enable line clock even if no data
344 static const struct imx_fb_platform_data pca100_fb_data __initconst = {
345 .mode = pca100_fb_modes,
346 .num_modes = ARRAY_SIZE(pca100_fb_modes),
353 static void __init pca100_init(void)
359 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
360 ARRAY_SIZE(pca100_pins), "PCA100");
362 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
364 imx27_add_imx_uart0(&uart_pdata);
366 imx27_add_mxc_nand(&pca100_nand_board_info);
368 /* only the i2c master 1 is used on this CPU card */
369 i2c_register_board_info(1, pca100_i2c_devices,
370 ARRAY_SIZE(pca100_i2c_devices));
372 imx27_add_imx_i2c(1, &pca100_i2c1_data);
374 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
375 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
376 spi_register_board_info(pca100_spi_board_info,
377 ARRAY_SIZE(pca100_spi_board_info));
378 imx27_add_spi_imx0(&pca100_spi0_data);
380 imx27_add_imx_fb(&pca100_fb_data);
383 imx27_add_imx2_wdt();
387 static void __init pca100_late_init(void)
389 imx27_add_imx_ssi(0, &pca100_ssi_pdata);
391 imx27_add_mxc_mmc(1, &sdhc_pdata);
393 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
394 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
395 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
396 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
399 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
400 ULPI_OTG_DRVVBUS_EXT);
403 imx27_add_mxc_ehci_otg(&otg_pdata);
405 gpio_set_value(OTG_PHY_CS_GPIO, 0);
406 imx27_add_fsl_usb2_udc(&otg_device_pdata);
409 usbh2_pdata.otg = imx_otg_ulpi_create(
410 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
413 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
416 static void __init pca100_timer_init(void)
418 mx27_clocks_init(26000000);
421 MACHINE_START(PCA100, "phyCARD-i.MX27")
422 .atag_offset = 0x100,
423 .map_io = mx27_map_io,
424 .init_early = imx27_init_early,
425 .init_irq = mx27_init_irq,
426 .init_machine = pca100_init,
427 .init_late = pca100_late_init,
428 .init_time = pca100_timer_init,
429 .restart = mxc_restart,