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>
40 #include <asm/mach/time.h>
41 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
44 #include <mach/imx-uart.h>
45 #include <mach/audmux.h>
47 #include <mach/mxc_nand.h>
48 #include <mach/irqs.h>
50 #include <mach/mxc_ehci.h>
51 #include <mach/ulpi.h>
55 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
56 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
58 static int pca100_pins[] = {
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,
136 static struct imxuart_platform_data uart_pdata = {
137 .flags = IMXUART_HAVE_RTSCTS,
140 static struct mxc_nand_platform_data pca100_nand_board_info = {
145 static struct platform_device *platform_devices[] __initdata = {
146 &mxc_w1_master_device,
150 static struct imxi2c_platform_data pca100_i2c_1_data = {
154 static struct at24_platform_data board_eeprom = {
157 .flags = AT24_FLAG_ADDR16,
160 static struct i2c_board_info pca100_i2c_devices[] = {
162 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
163 .platform_data = &board_eeprom,
165 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
168 I2C_BOARD_INFO("lm75", 0x4a),
173 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
174 static struct spi_eeprom at25320 = {
181 static struct spi_board_info pca100_spi_board_info[] __initdata = {
184 .max_speed_hz = 30000,
187 .platform_data = &at25320,
191 static int pca100_spi_cs[] = {GPIO_PORTD + 28, GPIO_PORTD + 27};
193 static struct spi_imx_master pca100_spi_0_data = {
194 .chipselect = pca100_spi_cs,
195 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
199 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
201 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
202 gpio_set_value(GPIO_PORTC + 20, 1);
204 gpio_set_value(GPIO_PORTC + 20, 0);
205 mxc_gpio_mode(PC20_PF_SSI1_FS);
209 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
211 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
212 gpio_set_value(GPIO_PORTC + 20, 0);
213 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
214 gpio_set_value(GPIO_PORTC + 22, 0);
215 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
216 gpio_set_value(GPIO_PORTC + 28, 0);
218 gpio_set_value(GPIO_PORTC + 28, 1);
219 mxc_gpio_mode(PC20_PF_SSI1_FS);
220 mxc_gpio_mode(PC22_PF_SSI1_TXD);
224 static struct imx_ssi_platform_data pca100_ssi_pdata = {
225 .ac97_reset = pca100_ac97_cold_reset,
226 .ac97_warm_reset = pca100_ac97_warm_reset,
227 .flags = IMX_SSI_USE_AC97,
230 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
235 ret = request_irq(IRQ_GPIOC(29), detect_irq,
236 IRQF_DISABLED | IRQF_TRIGGER_FALLING,
237 "imx-mmc-detect", data);
240 "pca100: Failed to reuest irq for sd/mmc detection\n");
245 static void pca100_sdhc2_exit(struct device *dev, void *data)
247 free_irq(IRQ_GPIOC(29), data);
250 static struct imxmmc_platform_data sdhc_pdata = {
251 .init = pca100_sdhc2_init,
252 .exit = pca100_sdhc2_exit,
255 static int otg_phy_init(struct platform_device *pdev)
257 gpio_set_value(OTG_PHY_CS_GPIO, 0);
261 static struct mxc_usbh_platform_data otg_pdata = {
262 .init = otg_phy_init,
263 .portsc = MXC_EHCI_MODE_ULPI,
264 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
267 static int usbh2_phy_init(struct platform_device *pdev)
269 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
273 static struct mxc_usbh_platform_data usbh2_pdata = {
274 .init = usbh2_phy_init,
275 .portsc = MXC_EHCI_MODE_ULPI,
276 .flags = MXC_EHCI_INTERFACE_DIFF_UNI,
279 static struct fsl_usb2_platform_data otg_device_pdata = {
280 .operating_mode = FSL_USB2_DR_DEVICE,
281 .phy_mode = FSL_USB2_PHY_ULPI,
284 static int otg_mode_host;
286 static int __init pca100_otg_mode(char *options)
288 if (!strcmp(options, "host"))
290 else if (!strcmp(options, "device"))
293 pr_info("otg_mode neither \"host\" nor \"device\". "
294 "Defaulting to device\n");
297 __setup("otg_mode=", pca100_otg_mode);
299 static void __init pca100_init(void)
304 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0,
305 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
306 MXC_AUDMUX_V1_PCR_TFCSEL(3) |
307 MXC_AUDMUX_V1_PCR_TCLKDIR | /* clock is output */
308 MXC_AUDMUX_V1_PCR_RXDSEL(3));
309 mxc_audmux_v1_configure_port(3,
310 MXC_AUDMUX_V1_PCR_SYN | /* 4wire mode */
311 MXC_AUDMUX_V1_PCR_TFCSEL(0) |
312 MXC_AUDMUX_V1_PCR_TFSDIR |
313 MXC_AUDMUX_V1_PCR_RXDSEL(0));
315 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
316 ARRAY_SIZE(pca100_pins), "PCA100");
318 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
320 mxc_register_device(&imx_ssi_device0, &pca100_ssi_pdata);
322 mxc_register_device(&mxc_uart_device0, &uart_pdata);
324 mxc_gpio_mode(GPIO_PORTC | 29 | GPIO_GPIO | GPIO_IN);
325 mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata);
327 mxc_register_device(&imx27_nand_device, &pca100_nand_board_info);
329 /* only the i2c master 1 is used on this CPU card */
330 i2c_register_board_info(1, pca100_i2c_devices,
331 ARRAY_SIZE(pca100_i2c_devices));
333 mxc_register_device(&mxc_i2c_device1, &pca100_i2c_1_data);
335 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
336 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_OUT);
339 mxc_gpio_mode(GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN);
341 mxc_gpio_mode(GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN);
343 mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN);
345 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
346 spi_register_board_info(pca100_spi_board_info,
347 ARRAY_SIZE(pca100_spi_board_info));
348 mxc_register_device(&mxc_spi_device0, &pca100_spi_0_data);
351 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
352 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
353 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
354 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
356 #if defined(CONFIG_USB_ULPI)
358 otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
359 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
361 mxc_register_device(&mxc_otg_host, &otg_pdata);
364 usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
365 USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
367 mxc_register_device(&mxc_usbh2, &usbh2_pdata);
369 if (!otg_mode_host) {
370 gpio_set_value(OTG_PHY_CS_GPIO, 0);
371 mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
374 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
377 static void __init pca100_timer_init(void)
379 mx27_clocks_init(26000000);
382 static struct sys_timer pca100_timer = {
383 .init = pca100_timer_init,
386 MACHINE_START(PCA100, "phyCARD-i.MX27")
387 .phys_io = MX27_AIPI_BASE_ADDR,
388 .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
389 .boot_params = MX27_PHYS_OFFSET + 0x100,
390 .map_io = mx27_map_io,
391 .init_irq = mx27_init_irq,
392 .init_machine = pca100_init,
393 .timer = &pca100_timer,