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/audmux.h>
40 #include <mach/mxc_nand.h>
41 #include <mach/irqs.h>
42 #include <mach/ulpi.h>
44 #include "devices-imx27.h"
46 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
47 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
48 #define SPI1_SS0 (GPIO_PORTD + 28)
49 #define SPI1_SS1 (GPIO_PORTD + 27)
50 #define SD2_CD (GPIO_PORTC + 29)
52 static const int pca100_pins[] __initconst = {
65 SD2_CD | GPIO_GPIO | GPIO_IN,
102 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
106 PC10_PF_USBOTG_DATA2,
107 PC11_PF_USBOTG_DATA1,
108 PC12_PF_USBOTG_DATA4,
109 PC13_PF_USBOTG_DATA3,
114 PE25_PF_USBOTG_DATA7,
116 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
154 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
155 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
156 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
159 static const struct imxuart_platform_data uart_pdata __initconst = {
160 .flags = IMXUART_HAVE_RTSCTS,
163 static const struct mxc_nand_platform_data
164 pca100_nand_board_info __initconst = {
169 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
173 static struct at24_platform_data board_eeprom = {
176 .flags = AT24_FLAG_ADDR16,
179 static struct i2c_board_info pca100_i2c_devices[] = {
181 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
182 .platform_data = &board_eeprom,
184 I2C_BOARD_INFO("pcf8563", 0x51),
186 I2C_BOARD_INFO("lm75", 0x4a),
190 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
191 static struct spi_eeprom at25320 = {
198 static struct spi_board_info pca100_spi_board_info[] __initdata = {
201 .max_speed_hz = 30000,
204 .platform_data = &at25320,
208 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
210 static const struct spi_imx_master pca100_spi0_data __initconst = {
211 .chipselect = pca100_spi_cs,
212 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
216 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
218 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
219 gpio_set_value(GPIO_PORTC + 20, 1);
221 gpio_set_value(GPIO_PORTC + 20, 0);
222 mxc_gpio_mode(PC20_PF_SSI1_FS);
226 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
228 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
229 gpio_set_value(GPIO_PORTC + 20, 0);
230 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
231 gpio_set_value(GPIO_PORTC + 22, 0);
232 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
233 gpio_set_value(GPIO_PORTC + 28, 0);
235 gpio_set_value(GPIO_PORTC + 28, 1);
236 mxc_gpio_mode(PC20_PF_SSI1_FS);
237 mxc_gpio_mode(PC22_PF_SSI1_TXD);
241 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
242 .ac97_reset = pca100_ac97_cold_reset,
243 .ac97_warm_reset = pca100_ac97_warm_reset,
244 .flags = IMX_SSI_USE_AC97,
247 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
252 ret = request_irq(IRQ_GPIOC(29), detect_irq,
253 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
254 "imx-mmc-detect", data);
257 "pca100: Failed to reuest irq for sd/mmc detection\n");
262 static void pca100_sdhc2_exit(struct device *dev, void *data)
264 free_irq(IRQ_GPIOC(29), data);
267 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
268 .init = pca100_sdhc2_init,
269 .exit = pca100_sdhc2_exit,
272 #if defined(CONFIG_USB_ULPI)
273 static int otg_phy_init(struct platform_device *pdev)
275 gpio_set_value(OTG_PHY_CS_GPIO, 0);
279 static struct mxc_usbh_platform_data otg_pdata __initdata = {
280 .init = otg_phy_init,
281 .portsc = MXC_EHCI_MODE_ULPI,
282 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
285 static int usbh2_phy_init(struct platform_device *pdev)
287 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
291 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
292 .init = usbh2_phy_init,
293 .portsc = MXC_EHCI_MODE_ULPI,
294 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
298 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
299 .operating_mode = FSL_USB2_DR_DEVICE,
300 .phy_mode = FSL_USB2_PHY_ULPI,
303 static int otg_mode_host;
305 static int __init pca100_otg_mode(char *options)
307 if (!strcmp(options, "host"))
309 else if (!strcmp(options, "device"))
312 pr_info("otg_mode neither \"host\" nor \"device\". "
313 "Defaulting to device\n");
316 __setup("otg_mode=", pca100_otg_mode);
318 /* framebuffer info */
319 static struct imx_fb_videomode pca100_fb_modes[] = {
322 .name = "EMERGING-ETV570G0DHU",
326 .pixclock = 39722, /* in ps (25.175 MHz) */
336 * Pixel pol active high
339 * use HSYNC for ACD count
340 * line clock disable while idle
341 * always enable line clock even if no data
348 static const struct imx_fb_platform_data pca100_fb_data __initconst = {
349 .mode = pca100_fb_modes,
350 .num_modes = ARRAY_SIZE(pca100_fb_modes),
357 static void __init pca100_init(void)
362 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
363 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
364 MXC_AUDMUX_V1_PCR_TFCSEL(3) |
365 MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
366 MXC_AUDMUX_V1_PCR_RXDSEL(3));
367 mxc_audmux_v1_configure_port(3,
368 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
369 MXC_AUDMUX_V1_PCR_TFCSEL(0) |
370 MXC_AUDMUX_V1_PCR_TFSDIR |
371 MXC_AUDMUX_V1_PCR_RXDSEL(0));
373 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
374 ARRAY_SIZE(pca100_pins), "PCA100");
376 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
378 imx27_add_imx_ssi(0, &pca100_ssi_pdata);
380 imx27_add_imx_uart0(&uart_pdata);
382 imx27_add_mxc_mmc(1, &sdhc_pdata);
384 imx27_add_mxc_nand(&pca100_nand_board_info);
386 /* only the i2c master 1 is used on this CPU card */
387 i2c_register_board_info(1, pca100_i2c_devices,
388 ARRAY_SIZE(pca100_i2c_devices));
390 imx27_add_imx_i2c(1, &pca100_i2c1_data);
392 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
393 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
394 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
395 spi_register_board_info(pca100_spi_board_info,
396 ARRAY_SIZE(pca100_spi_board_info));
397 imx27_add_spi_imx0(&pca100_spi0_data);
400 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
401 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
402 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
403 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
405 #if defined(CONFIG_USB_ULPI)
407 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
408 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
410 imx27_add_mxc_ehci_otg(&otg_pdata);
413 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
414 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
416 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
418 if (!otg_mode_host) {
419 gpio_set_value(OTG_PHY_CS_GPIO, 0);
420 imx27_add_fsl_usb2_udc(&otg_device_pdata);
423 imx27_add_imx_fb(&pca100_fb_data);
426 imx27_add_imx2_wdt(NULL);
427 imx27_add_mxc_w1(NULL);
430 static void __init pca100_timer_init(void)
432 mx27_clocks_init(26000000);
435 static struct sys_timer pca100_timer = {
436 .init = pca100_timer_init,
439 MACHINE_START(PCA100, "phyCARD-i.MX27")
440 .boot_params = MX27_PHYS_OFFSET + 0x100,
441 .map_io = mx27_map_io,
442 .init_irq = mx27_init_irq,
443 .init_machine = pca100_init,
444 .timer = &pca100_timer,