1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix
4 * Copyright (C) 2009 Sascha Hauer (kernel@pengutronix.de)
7 #include <linux/platform_device.h>
10 #include <linux/property.h>
11 #include <linux/dma-mapping.h>
12 #include <linux/spi/spi.h>
13 #include <linux/spi/eeprom.h>
14 #include <linux/irq.h>
15 #include <linux/delay.h>
16 #include <linux/gpio.h>
17 #include <linux/usb/otg.h>
18 #include <linux/usb/ulpi.h>
20 #include <asm/mach/arch.h>
21 #include <asm/mach-types.h>
22 #include <asm/mach/time.h>
25 #include "devices-imx27.h"
28 #include "iomux-mx27.h"
31 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
32 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
33 #define SPI1_SS0 (GPIO_PORTD + 28)
34 #define SPI1_SS1 (GPIO_PORTD + 27)
35 #define SD2_CD (GPIO_PORTC + 29)
37 static const int pca100_pins[] __initconst = {
50 SD2_CD | GPIO_GPIO | GPIO_IN,
87 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
101 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
139 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
140 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
141 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
144 static const struct imxuart_platform_data uart_pdata __initconst = {
145 .flags = IMXUART_HAVE_RTSCTS,
148 static const struct mxc_nand_platform_data
149 pca100_nand_board_info __initconst = {
154 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
158 static const struct property_entry board_eeprom_properties[] = {
159 PROPERTY_ENTRY_U32("pagesize", 32),
163 static struct i2c_board_info pca100_i2c_devices[] = {
165 I2C_BOARD_INFO("24c32", 0x52), /* E0=0, E1=1, E2=0 */
166 .properties = board_eeprom_properties,
168 I2C_BOARD_INFO("pcf8563", 0x51),
170 I2C_BOARD_INFO("lm75", 0x4a),
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[] = {SPI1_SS0, SPI1_SS1};
193 static const struct spi_imx_master pca100_spi0_data __initconst = {
194 .chipselect = pca100_spi_cs,
195 .num_chipselect = ARRAY_SIZE(pca100_spi_cs),
198 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
200 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
201 gpio_set_value(GPIO_PORTC + 20, 1);
203 gpio_set_value(GPIO_PORTC + 20, 0);
204 mxc_gpio_mode(PC20_PF_SSI1_FS);
208 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
210 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
211 gpio_set_value(GPIO_PORTC + 20, 0);
212 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
213 gpio_set_value(GPIO_PORTC + 22, 0);
214 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
215 gpio_set_value(GPIO_PORTC + 28, 0);
217 gpio_set_value(GPIO_PORTC + 28, 1);
218 mxc_gpio_mode(PC20_PF_SSI1_FS);
219 mxc_gpio_mode(PC22_PF_SSI1_TXD);
223 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
224 .ac97_reset = pca100_ac97_cold_reset,
225 .ac97_warm_reset = pca100_ac97_warm_reset,
226 .flags = IMX_SSI_USE_AC97,
229 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
234 ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq,
235 IRQF_TRIGGER_FALLING, "imx-mmc-detect", data);
238 "pca100: Failed to request irq for sd/mmc detection\n");
243 static void pca100_sdhc2_exit(struct device *dev, void *data)
245 free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data);
248 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
249 .init = pca100_sdhc2_init,
250 .exit = pca100_sdhc2_exit,
253 static int otg_phy_init(struct platform_device *pdev)
255 gpio_set_value(OTG_PHY_CS_GPIO, 0);
259 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
262 static struct mxc_usbh_platform_data otg_pdata __initdata = {
263 .init = otg_phy_init,
264 .portsc = MXC_EHCI_MODE_ULPI,
267 static int usbh2_phy_init(struct platform_device *pdev)
269 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
273 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
276 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
277 .init = usbh2_phy_init,
278 .portsc = MXC_EHCI_MODE_ULPI,
281 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
282 .operating_mode = FSL_USB2_DR_DEVICE,
283 .phy_mode = FSL_USB2_PHY_ULPI,
286 static bool otg_mode_host __initdata;
288 static int __init pca100_otg_mode(char *options)
290 if (!strcmp(options, "host"))
291 otg_mode_host = true;
292 else if (!strcmp(options, "device"))
293 otg_mode_host = false;
295 pr_info("otg_mode neither \"host\" nor \"device\". "
296 "Defaulting to device\n");
299 __setup("otg_mode=", pca100_otg_mode);
301 /* framebuffer info */
302 static struct imx_fb_videomode pca100_fb_modes[] = {
305 .name = "EMERGING-ETV570G0DHU",
309 .pixclock = 39722, /* in ps (25.175 MHz) */
319 * Pixel pol active high
322 * use HSYNC for ACD count
323 * line clock disable while idle
324 * always enable line clock even if no data
331 static const struct imx_fb_platform_data pca100_fb_data __initconst = {
332 .mode = pca100_fb_modes,
333 .num_modes = ARRAY_SIZE(pca100_fb_modes),
340 static void __init pca100_init(void)
346 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
347 ARRAY_SIZE(pca100_pins), "PCA100");
349 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
351 imx27_add_imx_uart0(&uart_pdata);
353 imx27_add_mxc_nand(&pca100_nand_board_info);
355 /* only the i2c master 1 is used on this CPU card */
356 i2c_register_board_info(1, pca100_i2c_devices,
357 ARRAY_SIZE(pca100_i2c_devices));
359 imx27_add_imx_i2c(1, &pca100_i2c1_data);
361 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
362 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
363 spi_register_board_info(pca100_spi_board_info,
364 ARRAY_SIZE(pca100_spi_board_info));
365 imx27_add_spi_imx0(&pca100_spi0_data);
367 imx27_add_imx_fb(&pca100_fb_data);
370 imx27_add_imx2_wdt();
374 static void __init pca100_late_init(void)
376 imx27_add_imx_ssi(0, &pca100_ssi_pdata);
378 imx27_add_mxc_mmc(1, &sdhc_pdata);
380 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
381 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
382 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
383 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
386 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
387 ULPI_OTG_DRVVBUS_EXT);
390 imx27_add_mxc_ehci_otg(&otg_pdata);
392 gpio_set_value(OTG_PHY_CS_GPIO, 0);
393 imx27_add_fsl_usb2_udc(&otg_device_pdata);
396 usbh2_pdata.otg = imx_otg_ulpi_create(
397 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
400 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
403 static void __init pca100_timer_init(void)
405 mx27_clocks_init(26000000);
408 MACHINE_START(PCA100, "phyCARD-i.MX27")
409 .atag_offset = 0x100,
410 .map_io = mx27_map_io,
411 .init_early = imx27_init_early,
412 .init_irq = mx27_init_irq,
413 .init_machine = pca100_init,
414 .init_late = pca100_late_init,
415 .init_time = pca100_timer_init,
416 .restart = mxc_restart,