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>
32 #include <linux/fsl_devices.h>
34 #include <asm/mach/arch.h>
35 #include <asm/mach-types.h>
36 #include <mach/common.h>
37 #include <mach/hardware.h>
38 #include <mach/iomux-mx27.h>
39 #include <asm/mach/time.h>
40 #include <mach/audmux.h>
41 #include <mach/mxc_nand.h>
42 #include <mach/irqs.h>
44 #include <mach/mxc_ehci.h>
45 #include <mach/ulpi.h>
46 #include <mach/imxfb.h>
48 #include "devices-imx27.h"
51 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
52 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
53 #define SPI1_SS0 (GPIO_PORTD + 28)
54 #define SPI1_SS1 (GPIO_PORTD + 27)
55 #define SD2_CD (GPIO_PORTC + 29)
57 static const int pca100_pins[] __initconst = {
70 SD2_CD | GPIO_GPIO | GPIO_IN,
107 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
111 PC10_PF_USBOTG_DATA2,
112 PC11_PF_USBOTG_DATA1,
113 PC12_PF_USBOTG_DATA4,
114 PC13_PF_USBOTG_DATA3,
119 PE25_PF_USBOTG_DATA7,
121 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
159 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
160 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
161 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
164 static const struct imxuart_platform_data uart_pdata __initconst = {
165 .flags = IMXUART_HAVE_RTSCTS,
168 static const struct mxc_nand_platform_data
169 pca100_nand_board_info __initconst = {
174 static struct platform_device *platform_devices[] __initdata = {
175 &mxc_w1_master_device,
179 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
183 static struct at24_platform_data board_eeprom = {
186 .flags = AT24_FLAG_ADDR16,
189 static struct i2c_board_info pca100_i2c_devices[] = {
191 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
192 .platform_data = &board_eeprom,
194 I2C_BOARD_INFO("pcf8563", 0x51),
196 I2C_BOARD_INFO("lm75", 0x4a),
200 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
201 static struct spi_eeprom at25320 = {
208 static struct spi_board_info pca100_spi_board_info[] __initdata = {
211 .max_speed_hz = 30000,
214 .platform_data = &at25320,
218 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
220 static const struct spi_imx_master pca100_spi0_data __initconst = {
221 .chipselect = pca100_spi_cs,
222 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
226 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
228 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
229 gpio_set_value(GPIO_PORTC + 20, 1);
231 gpio_set_value(GPIO_PORTC + 20, 0);
232 mxc_gpio_mode(PC20_PF_SSI1_FS);
236 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
238 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
239 gpio_set_value(GPIO_PORTC + 20, 0);
240 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
241 gpio_set_value(GPIO_PORTC + 22, 0);
242 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
243 gpio_set_value(GPIO_PORTC + 28, 0);
245 gpio_set_value(GPIO_PORTC + 28, 1);
246 mxc_gpio_mode(PC20_PF_SSI1_FS);
247 mxc_gpio_mode(PC22_PF_SSI1_TXD);
251 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
252 .ac97_reset = pca100_ac97_cold_reset,
253 .ac97_warm_reset = pca100_ac97_warm_reset,
254 .flags = IMX_SSI_USE_AC97,
257 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
262 ret = request_irq(IRQ_GPIOC(29), detect_irq,
263 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
264 "imx-mmc-detect", data);
267 "pca100: Failed to reuest irq for sd/mmc detection\n");
272 static void pca100_sdhc2_exit(struct device *dev, void *data)
274 free_irq(IRQ_GPIOC(29), data);
277 static struct imxmmc_platform_data sdhc_pdata = {
278 .init = pca100_sdhc2_init,
279 .exit = pca100_sdhc2_exit,
282 #if defined(CONFIG_USB_ULPI)
283 static int otg_phy_init(struct platform_device *pdev)
285 gpio_set_value(OTG_PHY_CS_GPIO, 0);
289 static struct mxc_usbh_platform_data otg_pdata = {
290 .init = otg_phy_init,
291 .portsc = MXC_EHCI_MODE_ULPI,
292 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
295 static int usbh2_phy_init(struct platform_device *pdev)
297 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
301 static struct mxc_usbh_platform_data usbh2_pdata = {
302 .init = usbh2_phy_init,
303 .portsc = MXC_EHCI_MODE_ULPI,
304 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
308 static struct fsl_usb2_platform_data otg_device_pdata = {
309 .operating_mode = FSL_USB2_DR_DEVICE,
310 .phy_mode = FSL_USB2_PHY_ULPI,
313 static int otg_mode_host;
315 static int __init pca100_otg_mode(char *options)
317 if (!strcmp(options, "host"))
319 else if (!strcmp(options, "device"))
322 pr_info("otg_mode neither \"host\" nor \"device\". "
323 "Defaulting to device\n");
326 __setup("otg_mode=", pca100_otg_mode);
328 /* framebuffer info */
329 static struct imx_fb_videomode pca100_fb_modes[] = {
332 .name = "EMERGING-ETV570G0DHU",
336 .pixclock = 39722, /* in ps (25.175 MHz) */
346 * Pixel pol active high
349 * use HSYNC for ACD count
350 * line clock disable while idle
351 * always enable line clock even if no data
358 static struct imx_fb_platform_data pca100_fb_data = {
359 .mode = pca100_fb_modes,
360 .num_modes = ARRAY_SIZE(pca100_fb_modes),
367 static void __init pca100_init(void)
372 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
373 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
374 MXC_AUDMUX_V1_PCR_TFCSEL(3) |
375 MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
376 MXC_AUDMUX_V1_PCR_RXDSEL(3));
377 mxc_audmux_v1_configure_port(3,
378 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
379 MXC_AUDMUX_V1_PCR_TFCSEL(0) |
380 MXC_AUDMUX_V1_PCR_TFSDIR |
381 MXC_AUDMUX_V1_PCR_RXDSEL(0));
383 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
384 ARRAY_SIZE(pca100_pins), "PCA100");
386 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
388 imx27_add_imx_ssi(0, &pca100_ssi_pdata);
390 imx27_add_imx_uart0(&uart_pdata);
392 mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
394 imx27_add_mxc_nand(&pca100_nand_board_info);
396 /* only the i2c master 1 is used on this CPU card */
397 i2c_register_board_info(1, pca100_i2c_devices,
398 ARRAY_SIZE(pca100_i2c_devices));
400 imx27_add_imx_i2c(1, &pca100_i2c1_data);
402 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
403 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
404 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
405 spi_register_board_info(pca100_spi_board_info,
406 ARRAY_SIZE(pca100_spi_board_info));
407 imx27_add_spi_imx0(&pca100_spi0_data);
410 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
411 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
412 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
413 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
415 #if defined(CONFIG_USB_ULPI)
417 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
418 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
420 mxc_register_device(&mxc_otg_host, &otg_pdata);
423 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
424 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
426 mxc_register_device(&mxc_usbh2, &usbh2_pdata);
428 if (!otg_mode_host) {
429 gpio_set_value(OTG_PHY_CS_GPIO, 0);
430 mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
433 mxc_register_device(&mxc_fb_device, &pca100_fb_data);
436 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
439 static void __init pca100_timer_init(void)
441 mx27_clocks_init(26000000);
444 static struct sys_timer pca100_timer = {
445 .init = pca100_timer_init,
448 MACHINE_START(PCA100, "phyCARD-i.MX27")
449 .boot_params = MX27_PHYS_OFFSET + 0x100,
450 .map_io = mx27_map_io,
451 .init_irq = mx27_init_irq,
452 .init_machine = pca100_init,
453 .timer = &pca100_timer,