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>
42 #include <mach/mxc_nand.h>
43 #include <mach/irqs.h>
45 #include <mach/mxc_ehci.h>
46 #include <mach/ulpi.h>
47 #include <mach/imxfb.h>
49 #include "devices-imx27.h"
52 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
53 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
54 #define SPI1_SS0 (GPIO_PORTD + 28)
55 #define SPI1_SS1 (GPIO_PORTD + 27)
56 #define SD2_CD (GPIO_PORTC + 29)
58 static int pca100_pins[] = {
71 SD2_CD | GPIO_GPIO | GPIO_IN,
108 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
112 PC10_PF_USBOTG_DATA2,
113 PC11_PF_USBOTG_DATA1,
114 PC12_PF_USBOTG_DATA4,
115 PC13_PF_USBOTG_DATA3,
120 PE25_PF_USBOTG_DATA7,
122 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
160 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
161 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
162 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
165 static const struct imxuart_platform_data uart_pdata __initconst = {
166 .flags = IMXUART_HAVE_RTSCTS,
169 static const struct mxc_nand_platform_data
170 pca100_nand_board_info __initconst = {
175 static struct platform_device *platform_devices[] __initdata = {
176 &mxc_w1_master_device,
181 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
185 static struct at24_platform_data board_eeprom = {
188 .flags = AT24_FLAG_ADDR16,
191 static struct i2c_board_info pca100_i2c_devices[] = {
193 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
194 .platform_data = &board_eeprom,
196 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
199 I2C_BOARD_INFO("lm75", 0x4a),
204 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
205 static struct spi_eeprom at25320 = {
212 static struct spi_board_info pca100_spi_board_info[] __initdata = {
215 .max_speed_hz = 30000,
218 .platform_data = &at25320,
222 static int pca100_spi_cs[] = {SPI1_SS0, SPI1_SS1};
224 static const struct spi_imx_master pca100_spi0_data __initconst = {
225 .chipselect = pca100_spi_cs,
226 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
230 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
232 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
233 gpio_set_value(GPIO_PORTC + 20, 1);
235 gpio_set_value(GPIO_PORTC + 20, 0);
236 mxc_gpio_mode(PC20_PF_SSI1_FS);
240 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
242 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
243 gpio_set_value(GPIO_PORTC + 20, 0);
244 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
245 gpio_set_value(GPIO_PORTC + 22, 0);
246 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
247 gpio_set_value(GPIO_PORTC + 28, 0);
249 gpio_set_value(GPIO_PORTC + 28, 1);
250 mxc_gpio_mode(PC20_PF_SSI1_FS);
251 mxc_gpio_mode(PC22_PF_SSI1_TXD);
255 static struct imx_ssi_platform_data pca100_ssi_pdata = {
256 .ac97_reset = pca100_ac97_cold_reset,
257 .ac97_warm_reset = pca100_ac97_warm_reset,
258 .flags = IMX_SSI_USE_AC97,
261 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
266 ret = request_irq(IRQ_GPIOC(29), detect_irq,
267 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
268 "imx-mmc-detect", data);
271 "pca100: Failed to reuest irq for sd/mmc detection\n");
276 static void pca100_sdhc2_exit(struct device *dev, void *data)
278 free_irq(IRQ_GPIOC(29), data);
281 static struct imxmmc_platform_data sdhc_pdata = {
282 .init = pca100_sdhc2_init,
283 .exit = pca100_sdhc2_exit,
286 #if defined(CONFIG_USB_ULPI)
287 static int otg_phy_init(struct platform_device *pdev)
289 gpio_set_value(OTG_PHY_CS_GPIO, 0);
293 static struct mxc_usbh_platform_data otg_pdata = {
294 .init = otg_phy_init,
295 .portsc = MXC_EHCI_MODE_ULPI,
296 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
299 static int usbh2_phy_init(struct platform_device *pdev)
301 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
305 static struct mxc_usbh_platform_data usbh2_pdata = {
306 .init = usbh2_phy_init,
307 .portsc = MXC_EHCI_MODE_ULPI,
308 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
312 static struct fsl_usb2_platform_data otg_device_pdata = {
313 .operating_mode = FSL_USB2_DR_DEVICE,
314 .phy_mode = FSL_USB2_PHY_ULPI,
317 static int otg_mode_host;
319 static int __init pca100_otg_mode(char *options)
321 if (!strcmp(options, "host"))
323 else if (!strcmp(options, "device"))
326 pr_info("otg_mode neither \"host\" nor \"device\". "
327 "Defaulting to device\n");
330 __setup("otg_mode=", pca100_otg_mode);
332 /* framebuffer info */
333 static struct imx_fb_videomode pca100_fb_modes[] = {
336 .name = "EMERGING-ETV570G0DHU",
340 .pixclock = 39722, /* in ps (25.175 MHz) */
350 * Pixel pol active high
353 * use HSYNC for ACD count
354 * line clock disable while idle
355 * always enable line clock even if no data
362 static struct imx_fb_platform_data pca100_fb_data = {
363 .mode = pca100_fb_modes,
364 .num_modes = ARRAY_SIZE(pca100_fb_modes),
371 static void __init pca100_init(void)
376 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
377 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
378 MXC_AUDMUX_V1_PCR_TFCSEL(3) |
379 MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
380 MXC_AUDMUX_V1_PCR_RXDSEL(3));
381 mxc_audmux_v1_configure_port(3,
382 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
383 MXC_AUDMUX_V1_PCR_TFCSEL(0) |
384 MXC_AUDMUX_V1_PCR_TFSDIR |
385 MXC_AUDMUX_V1_PCR_RXDSEL(0));
387 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
388 ARRAY_SIZE(pca100_pins), "PCA100");
390 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
392 mxc_register_device(&imx_ssi_device0, &pca100_ssi_pdata);
394 imx27_add_imx_uart0(&uart_pdata);
396 mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
398 imx27_add_mxc_nand(&pca100_nand_board_info);
400 /* only the i2c master 1 is used on this CPU card */
401 i2c_register_board_info(1, pca100_i2c_devices,
402 ARRAY_SIZE(pca100_i2c_devices));
404 imx27_add_i2c_imx1(&pca100_i2c1_data);
406 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
407 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
408 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
409 spi_register_board_info(pca100_spi_board_info,
410 ARRAY_SIZE(pca100_spi_board_info));
411 imx27_add_spi_imx0(&pca100_spi0_data);
414 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
415 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
416 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
417 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
419 #if defined(CONFIG_USB_ULPI)
421 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
422 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
424 mxc_register_device(&mxc_otg_host, &otg_pdata);
427 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
428 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
430 mxc_register_device(&mxc_usbh2, &usbh2_pdata);
432 if (!otg_mode_host) {
433 gpio_set_value(OTG_PHY_CS_GPIO, 0);
434 mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
437 mxc_register_device(&mxc_fb_device, &pca100_fb_data);
439 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
442 static void __init pca100_timer_init(void)
444 mx27_clocks_init(26000000);
447 static struct sys_timer pca100_timer = {
448 .init = pca100_timer_init,
451 MACHINE_START(PCA100, "phyCARD-i.MX27")
452 .phys_io = MX27_AIPI_BASE_ADDR,
453 .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
454 .boot_params = MX27_PHYS_OFFSET + 0x100,
455 .map_io = mx27_map_io,
456 .init_irq = mx27_init_irq,
457 .init_machine = pca100_init,
458 .timer = &pca100_timer,