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/irqs.h>
41 #include <mach/ulpi.h>
43 #include "devices-imx27.h"
45 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
46 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
47 #define SPI1_SS0 (GPIO_PORTD + 28)
48 #define SPI1_SS1 (GPIO_PORTD + 27)
49 #define SD2_CD (GPIO_PORTC + 29)
51 static const int pca100_pins[] __initconst = {
64 SD2_CD | GPIO_GPIO | GPIO_IN,
101 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
105 PC10_PF_USBOTG_DATA2,
106 PC11_PF_USBOTG_DATA1,
107 PC12_PF_USBOTG_DATA4,
108 PC13_PF_USBOTG_DATA3,
113 PE25_PF_USBOTG_DATA7,
115 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
153 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
154 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
155 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
158 static const struct imxuart_platform_data uart_pdata __initconst = {
159 .flags = IMXUART_HAVE_RTSCTS,
162 static const struct mxc_nand_platform_data
163 pca100_nand_board_info __initconst = {
168 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
172 static struct at24_platform_data board_eeprom = {
175 .flags = AT24_FLAG_ADDR16,
178 static struct i2c_board_info pca100_i2c_devices[] = {
180 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
181 .platform_data = &board_eeprom,
183 I2C_BOARD_INFO("pcf8563", 0x51),
185 I2C_BOARD_INFO("lm75", 0x4a),
189 static struct spi_eeprom at25320 = {
196 static struct spi_board_info pca100_spi_board_info[] __initdata = {
199 .max_speed_hz = 30000,
202 .platform_data = &at25320,
206 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
208 static const struct spi_imx_master pca100_spi0_data __initconst = {
209 .chipselect = pca100_spi_cs,
210 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
213 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
215 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
216 gpio_set_value(GPIO_PORTC + 20, 1);
218 gpio_set_value(GPIO_PORTC + 20, 0);
219 mxc_gpio_mode(PC20_PF_SSI1_FS);
223 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
225 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
226 gpio_set_value(GPIO_PORTC + 20, 0);
227 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
228 gpio_set_value(GPIO_PORTC + 22, 0);
229 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
230 gpio_set_value(GPIO_PORTC + 28, 0);
232 gpio_set_value(GPIO_PORTC + 28, 1);
233 mxc_gpio_mode(PC20_PF_SSI1_FS);
234 mxc_gpio_mode(PC22_PF_SSI1_TXD);
238 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
239 .ac97_reset = pca100_ac97_cold_reset,
240 .ac97_warm_reset = pca100_ac97_warm_reset,
241 .flags = IMX_SSI_USE_AC97,
244 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
249 ret = request_irq(IRQ_GPIOC(29), detect_irq,
250 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
251 "imx-mmc-detect", data);
254 "pca100: Failed to reuest irq for sd/mmc detection\n");
259 static void pca100_sdhc2_exit(struct device *dev, void *data)
261 free_irq(IRQ_GPIOC(29), data);
264 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
265 .init = pca100_sdhc2_init,
266 .exit = pca100_sdhc2_exit,
269 static int otg_phy_init(struct platform_device *pdev)
271 gpio_set_value(OTG_PHY_CS_GPIO, 0);
275 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
278 static struct mxc_usbh_platform_data otg_pdata __initdata = {
279 .init = otg_phy_init,
280 .portsc = MXC_EHCI_MODE_ULPI,
283 static int usbh2_phy_init(struct platform_device *pdev)
285 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
289 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
292 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
293 .init = usbh2_phy_init,
294 .portsc = MXC_EHCI_MODE_ULPI,
297 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
298 .operating_mode = FSL_USB2_DR_DEVICE,
299 .phy_mode = FSL_USB2_PHY_ULPI,
302 static int otg_mode_host;
304 static int __init pca100_otg_mode(char *options)
306 if (!strcmp(options, "host"))
308 else if (!strcmp(options, "device"))
311 pr_info("otg_mode neither \"host\" nor \"device\". "
312 "Defaulting to device\n");
315 __setup("otg_mode=", pca100_otg_mode);
317 /* framebuffer info */
318 static struct imx_fb_videomode pca100_fb_modes[] = {
321 .name = "EMERGING-ETV570G0DHU",
325 .pixclock = 39722, /* in ps (25.175 MHz) */
335 * Pixel pol active high
338 * use HSYNC for ACD count
339 * line clock disable while idle
340 * always enable line clock even if no data
347 static const struct imx_fb_platform_data pca100_fb_data __initconst = {
348 .mode = pca100_fb_modes,
349 .num_modes = ARRAY_SIZE(pca100_fb_modes),
356 static void __init pca100_init(void)
363 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
364 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
365 MXC_AUDMUX_V1_PCR_TFCSEL(3) |
366 MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
367 MXC_AUDMUX_V1_PCR_RXDSEL(3));
368 mxc_audmux_v1_configure_port(3,
369 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
370 MXC_AUDMUX_V1_PCR_TFCSEL(0) |
371 MXC_AUDMUX_V1_PCR_TFSDIR |
372 MXC_AUDMUX_V1_PCR_RXDSEL(0));
374 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
375 ARRAY_SIZE(pca100_pins), "PCA100");
377 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
379 imx27_add_imx_ssi(0, &pca100_ssi_pdata);
381 imx27_add_imx_uart0(&uart_pdata);
383 imx27_add_mxc_mmc(1, &sdhc_pdata);
385 imx27_add_mxc_nand(&pca100_nand_board_info);
387 /* only the i2c master 1 is used on this CPU card */
388 i2c_register_board_info(1, pca100_i2c_devices,
389 ARRAY_SIZE(pca100_i2c_devices));
391 imx27_add_imx_i2c(1, &pca100_i2c1_data);
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);
399 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
400 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
401 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
402 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
405 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
406 ULPI_OTG_DRVVBUS_EXT);
409 imx27_add_mxc_ehci_otg(&otg_pdata);
411 gpio_set_value(OTG_PHY_CS_GPIO, 0);
412 imx27_add_fsl_usb2_udc(&otg_device_pdata);
415 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
416 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
419 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
421 imx27_add_imx_fb(&pca100_fb_data);
424 imx27_add_imx2_wdt(NULL);
425 imx27_add_mxc_w1(NULL);
428 static void __init pca100_timer_init(void)
430 mx27_clocks_init(26000000);
433 static struct sys_timer pca100_timer = {
434 .init = pca100_timer_init,
437 MACHINE_START(PCA100, "phyCARD-i.MX27")
438 .boot_params = MX27_PHYS_OFFSET + 0x100,
439 .map_io = mx27_map_io,
440 .init_early = imx27_init_early,
441 .init_irq = mx27_init_irq,
442 .init_machine = pca100_init,
443 .timer = &pca100_timer,