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>
53 #include "devices-imx27.h"
56 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
57 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
59 static int pca100_pins
[] = {
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
,
137 static struct imxuart_platform_data uart_pdata
= {
138 .flags
= IMXUART_HAVE_RTSCTS
,
141 static const struct mxc_nand_platform_data
142 pca100_nand_board_info __initconst
= {
147 static struct platform_device
*platform_devices
[] __initdata
= {
148 &mxc_w1_master_device
,
153 static struct imxi2c_platform_data pca100_i2c_1_data
= {
157 static struct at24_platform_data board_eeprom
= {
160 .flags
= AT24_FLAG_ADDR16
,
163 static struct i2c_board_info pca100_i2c_devices
[] = {
165 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
166 .platform_data
= &board_eeprom
,
168 I2C_BOARD_INFO("rtc-pcf8563", 0x51),
171 I2C_BOARD_INFO("lm75", 0x4a),
176 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
177 static struct spi_eeprom at25320
= {
184 static struct spi_board_info pca100_spi_board_info
[] __initdata
= {
187 .max_speed_hz
= 30000,
190 .platform_data
= &at25320
,
194 static int pca100_spi_cs
[] = {GPIO_PORTD
+ 28, GPIO_PORTD
+ 27};
196 static struct spi_imx_master pca100_spi_0_data
= {
197 .chipselect
= pca100_spi_cs
,
198 .num_chipselect
= ARRAY_SIZE(pca100_spi_cs
),
202 static void pca100_ac97_warm_reset(struct snd_ac97
*ac97
)
204 mxc_gpio_mode(GPIO_PORTC
| 20 | GPIO_GPIO
| GPIO_OUT
);
205 gpio_set_value(GPIO_PORTC
+ 20, 1);
207 gpio_set_value(GPIO_PORTC
+ 20, 0);
208 mxc_gpio_mode(PC20_PF_SSI1_FS
);
212 static void pca100_ac97_cold_reset(struct snd_ac97
*ac97
)
214 mxc_gpio_mode(GPIO_PORTC
| 20 | GPIO_GPIO
| GPIO_OUT
); /* FS */
215 gpio_set_value(GPIO_PORTC
+ 20, 0);
216 mxc_gpio_mode(GPIO_PORTC
| 22 | GPIO_GPIO
| GPIO_OUT
); /* TX */
217 gpio_set_value(GPIO_PORTC
+ 22, 0);
218 mxc_gpio_mode(GPIO_PORTC
| 28 | GPIO_GPIO
| GPIO_OUT
); /* reset */
219 gpio_set_value(GPIO_PORTC
+ 28, 0);
221 gpio_set_value(GPIO_PORTC
+ 28, 1);
222 mxc_gpio_mode(PC20_PF_SSI1_FS
);
223 mxc_gpio_mode(PC22_PF_SSI1_TXD
);
227 static struct imx_ssi_platform_data pca100_ssi_pdata
= {
228 .ac97_reset
= pca100_ac97_cold_reset
,
229 .ac97_warm_reset
= pca100_ac97_warm_reset
,
230 .flags
= IMX_SSI_USE_AC97
,
233 static int pca100_sdhc2_init(struct device
*dev
, irq_handler_t detect_irq
,
238 ret
= request_irq(IRQ_GPIOC(29), detect_irq
,
239 IRQF_DISABLED
| IRQF_TRIGGER_FALLING
,
240 "imx-mmc-detect", data
);
243 "pca100: Failed to reuest irq for sd/mmc detection\n");
248 static void pca100_sdhc2_exit(struct device
*dev
, void *data
)
250 free_irq(IRQ_GPIOC(29), data
);
253 static struct imxmmc_platform_data sdhc_pdata
= {
254 .init
= pca100_sdhc2_init
,
255 .exit
= pca100_sdhc2_exit
,
258 static int otg_phy_init(struct platform_device
*pdev
)
260 gpio_set_value(OTG_PHY_CS_GPIO
, 0);
264 static struct mxc_usbh_platform_data otg_pdata
= {
265 .init
= otg_phy_init
,
266 .portsc
= MXC_EHCI_MODE_ULPI
,
267 .flags
= MXC_EHCI_INTERFACE_DIFF_UNI
,
270 static int usbh2_phy_init(struct platform_device
*pdev
)
272 gpio_set_value(USBH2_PHY_CS_GPIO
, 0);
276 static struct mxc_usbh_platform_data usbh2_pdata
= {
277 .init
= usbh2_phy_init
,
278 .portsc
= MXC_EHCI_MODE_ULPI
,
279 .flags
= MXC_EHCI_INTERFACE_DIFF_UNI
,
282 static struct fsl_usb2_platform_data otg_device_pdata
= {
283 .operating_mode
= FSL_USB2_DR_DEVICE
,
284 .phy_mode
= FSL_USB2_PHY_ULPI
,
287 static int otg_mode_host
;
289 static int __init
pca100_otg_mode(char *options
)
291 if (!strcmp(options
, "host"))
293 else if (!strcmp(options
, "device"))
296 pr_info("otg_mode neither \"host\" nor \"device\". "
297 "Defaulting to device\n");
300 __setup("otg_mode=", pca100_otg_mode
);
302 static void __init
pca100_init(void)
307 mxc_audmux_v1_configure_port(MX27_AUDMUX_HPCR1_SSI0
,
308 MXC_AUDMUX_V1_PCR_SYN
| /* 4wire mode */
309 MXC_AUDMUX_V1_PCR_TFCSEL(3) |
310 MXC_AUDMUX_V1_PCR_TCLKDIR
| /* clock is output */
311 MXC_AUDMUX_V1_PCR_RXDSEL(3));
312 mxc_audmux_v1_configure_port(3,
313 MXC_AUDMUX_V1_PCR_SYN
| /* 4wire mode */
314 MXC_AUDMUX_V1_PCR_TFCSEL(0) |
315 MXC_AUDMUX_V1_PCR_TFSDIR
|
316 MXC_AUDMUX_V1_PCR_RXDSEL(0));
318 ret
= mxc_gpio_setup_multiple_pins(pca100_pins
,
319 ARRAY_SIZE(pca100_pins
), "PCA100");
321 printk(KERN_ERR
"pca100: Failed to setup pins (%d)\n", ret
);
323 mxc_register_device(&imx_ssi_device0
, &pca100_ssi_pdata
);
325 mxc_register_device(&imx2x_uart_device0
, &uart_pdata
);
327 mxc_gpio_mode(GPIO_PORTC
| 29 | GPIO_GPIO
| GPIO_IN
);
328 mxc_register_device(&mxc_sdhc_device1
, &sdhc_pdata
);
330 imx27_add_mxc_nand(&pca100_nand_board_info
);
332 /* only the i2c master 1 is used on this CPU card */
333 i2c_register_board_info(1, pca100_i2c_devices
,
334 ARRAY_SIZE(pca100_i2c_devices
));
336 mxc_register_device(&mxc_i2c_device1
, &pca100_i2c_1_data
);
338 mxc_gpio_mode(GPIO_PORTD
| 28 | GPIO_GPIO
| GPIO_OUT
);
339 mxc_gpio_mode(GPIO_PORTD
| 27 | GPIO_GPIO
| GPIO_OUT
);
342 mxc_gpio_mode(GPIO_PORTC
| 31 | GPIO_GPIO
| GPIO_IN
);
344 mxc_gpio_mode(GPIO_PORTC
| 25 | GPIO_GPIO
| GPIO_IN
);
346 mxc_gpio_mode(GPIO_PORTE
| 5 | GPIO_GPIO
| GPIO_IN
);
348 #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE)
349 spi_register_board_info(pca100_spi_board_info
,
350 ARRAY_SIZE(pca100_spi_board_info
));
351 mxc_register_device(&mxc_spi_device0
, &pca100_spi_0_data
);
354 gpio_request(OTG_PHY_CS_GPIO
, "usb-otg-cs");
355 gpio_direction_output(OTG_PHY_CS_GPIO
, 1);
356 gpio_request(USBH2_PHY_CS_GPIO
, "usb-host2-cs");
357 gpio_direction_output(USBH2_PHY_CS_GPIO
, 1);
359 #if defined(CONFIG_USB_ULPI)
361 otg_pdata
.otg
= otg_ulpi_create(&mxc_ulpi_access_ops
,
362 USB_OTG_DRV_VBUS
| USB_OTG_DRV_VBUS_EXT
);
364 mxc_register_device(&mxc_otg_host
, &otg_pdata
);
367 usbh2_pdata
.otg
= otg_ulpi_create(&mxc_ulpi_access_ops
,
368 USB_OTG_DRV_VBUS
| USB_OTG_DRV_VBUS_EXT
);
370 mxc_register_device(&mxc_usbh2
, &usbh2_pdata
);
372 if (!otg_mode_host
) {
373 gpio_set_value(OTG_PHY_CS_GPIO
, 0);
374 mxc_register_device(&mxc_otg_udc_device
, &otg_device_pdata
);
377 platform_add_devices(platform_devices
, ARRAY_SIZE(platform_devices
));
380 static void __init
pca100_timer_init(void)
382 mx27_clocks_init(26000000);
385 static struct sys_timer pca100_timer
= {
386 .init
= pca100_timer_init
,
389 MACHINE_START(PCA100
, "phyCARD-i.MX27")
390 .phys_io
= MX27_AIPI_BASE_ADDR
,
391 .io_pg_offst
= ((MX27_AIPI_BASE_ADDR_VIRT
) >> 18) & 0xfffc,
392 .boot_params
= MX27_PHYS_OFFSET
+ 0x100,
393 .map_io
= mx27_map_io
,
394 .init_irq
= mx27_init_irq
,
395 .init_machine
= pca100_init
,
396 .timer
= &pca100_timer
,