1 // SPDX-License-Identifier: GPL-2.0-or-later
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/gpio/machine.h>
18 #include <linux/usb/otg.h>
19 #include <linux/usb/ulpi.h>
21 #include <asm/mach/arch.h>
22 #include <asm/mach-types.h>
23 #include <asm/mach/time.h>
26 #include "devices-imx27.h"
29 #include "iomux-mx27.h"
32 #define OTG_PHY_CS_GPIO (GPIO_PORTB + 23)
33 #define USBH2_PHY_CS_GPIO (GPIO_PORTB + 24)
34 #define SPI1_SS0 (GPIO_PORTD + 28)
35 #define SPI1_SS1 (GPIO_PORTD + 27)
36 #define SD2_CD (GPIO_PORTC + 29)
38 static const int pca100_pins[] __initconst = {
51 SD2_CD | GPIO_GPIO | GPIO_IN,
88 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
100 PE25_PF_USBOTG_DATA7,
102 USBH2_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
140 GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN, /* GPIO0_IRQ */
141 GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN, /* GPIO1_IRQ */
142 GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN, /* GPIO2_IRQ */
145 static const struct imxuart_platform_data uart_pdata __initconst = {
146 .flags = IMXUART_HAVE_RTSCTS,
149 static const struct mxc_nand_platform_data
150 pca100_nand_board_info __initconst = {
155 static const struct imxi2c_platform_data pca100_i2c1_data __initconst = {
159 static const struct property_entry board_eeprom_properties[] = {
160 PROPERTY_ENTRY_U32("pagesize", 32),
164 static struct i2c_board_info pca100_i2c_devices[] = {
166 I2C_BOARD_INFO("24c32", 0x52), /* E0=0, E1=1, E2=0 */
167 .properties = board_eeprom_properties,
169 I2C_BOARD_INFO("pcf8563", 0x51),
171 I2C_BOARD_INFO("lm75", 0x4a),
175 static struct spi_eeprom at25320 = {
182 static struct spi_board_info pca100_spi_board_info[] __initdata = {
185 .max_speed_hz = 30000,
188 .platform_data = &at25320,
192 static struct gpiod_lookup_table pca100_spi0_gpiod_table = {
193 .dev_id = "imx27-cspi.0", /* Actual device name for spi0 */
196 * The i.MX27 has the i.MX21 GPIO controller, port D is
197 * bank 3 and thus named "imx21-gpio.3".
198 * SPI1_SS0 is GPIO_PORTD + 28
199 * SPI1_SS1 is GPIO_PORTD + 27
201 GPIO_LOOKUP_IDX("imx21-gpio.3", 28, "cs", 0, GPIO_ACTIVE_LOW),
202 GPIO_LOOKUP_IDX("imx21-gpio.3", 27, "cs", 1, GPIO_ACTIVE_LOW),
207 static void pca100_ac97_warm_reset(struct snd_ac97 *ac97)
209 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT);
210 gpio_set_value(GPIO_PORTC + 20, 1);
212 gpio_set_value(GPIO_PORTC + 20, 0);
213 mxc_gpio_mode(PC20_PF_SSI1_FS);
217 static void pca100_ac97_cold_reset(struct snd_ac97 *ac97)
219 mxc_gpio_mode(GPIO_PORTC | 20 | GPIO_GPIO | GPIO_OUT); /* FS */
220 gpio_set_value(GPIO_PORTC + 20, 0);
221 mxc_gpio_mode(GPIO_PORTC | 22 | GPIO_GPIO | GPIO_OUT); /* TX */
222 gpio_set_value(GPIO_PORTC + 22, 0);
223 mxc_gpio_mode(GPIO_PORTC | 28 | GPIO_GPIO | GPIO_OUT); /* reset */
224 gpio_set_value(GPIO_PORTC + 28, 0);
226 gpio_set_value(GPIO_PORTC + 28, 1);
227 mxc_gpio_mode(PC20_PF_SSI1_FS);
228 mxc_gpio_mode(PC22_PF_SSI1_TXD);
232 static const struct imx_ssi_platform_data pca100_ssi_pdata __initconst = {
233 .ac97_reset = pca100_ac97_cold_reset,
234 .ac97_warm_reset = pca100_ac97_warm_reset,
235 .flags = IMX_SSI_USE_AC97,
238 static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
243 ret = request_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), detect_irq,
244 IRQF_TRIGGER_FALLING, "imx-mmc-detect", data);
247 "pca100: Failed to request irq for sd/mmc detection\n");
252 static void pca100_sdhc2_exit(struct device *dev, void *data)
254 free_irq(gpio_to_irq(IMX_GPIO_NR(3, 29)), data);
257 static const struct imxmmc_platform_data sdhc_pdata __initconst = {
258 .init = pca100_sdhc2_init,
259 .exit = pca100_sdhc2_exit,
262 static int otg_phy_init(struct platform_device *pdev)
264 gpio_set_value(OTG_PHY_CS_GPIO, 0);
268 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
271 static struct mxc_usbh_platform_data otg_pdata __initdata = {
272 .init = otg_phy_init,
273 .portsc = MXC_EHCI_MODE_ULPI,
276 static int usbh2_phy_init(struct platform_device *pdev)
278 gpio_set_value(USBH2_PHY_CS_GPIO, 0);
282 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_INTERFACE_DIFF_UNI);
285 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
286 .init = usbh2_phy_init,
287 .portsc = MXC_EHCI_MODE_ULPI,
290 static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
291 .operating_mode = FSL_USB2_DR_DEVICE,
292 .phy_mode = FSL_USB2_PHY_ULPI,
295 static bool otg_mode_host __initdata;
297 static int __init pca100_otg_mode(char *options)
299 if (!strcmp(options, "host"))
300 otg_mode_host = true;
301 else if (!strcmp(options, "device"))
302 otg_mode_host = false;
304 pr_info("otg_mode neither \"host\" nor \"device\". "
305 "Defaulting to device\n");
308 __setup("otg_mode=", pca100_otg_mode);
310 /* framebuffer info */
311 static struct imx_fb_videomode pca100_fb_modes[] = {
314 .name = "EMERGING-ETV570G0DHU",
318 .pixclock = 39722, /* in ps (25.175 MHz) */
328 * Pixel pol active high
331 * use HSYNC for ACD count
332 * line clock disable while idle
333 * always enable line clock even if no data
340 static const struct imx_fb_platform_data pca100_fb_data __initconst = {
341 .mode = pca100_fb_modes,
342 .num_modes = ARRAY_SIZE(pca100_fb_modes),
349 static void __init pca100_init(void)
355 ret = mxc_gpio_setup_multiple_pins(pca100_pins,
356 ARRAY_SIZE(pca100_pins), "PCA100");
358 printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret);
360 imx27_add_imx_uart0(&uart_pdata);
362 imx27_add_mxc_nand(&pca100_nand_board_info);
364 /* only the i2c master 1 is used on this CPU card */
365 i2c_register_board_info(1, pca100_i2c_devices,
366 ARRAY_SIZE(pca100_i2c_devices));
368 imx27_add_imx_i2c(1, &pca100_i2c1_data);
370 mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_IN);
371 mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_IN);
372 spi_register_board_info(pca100_spi_board_info,
373 ARRAY_SIZE(pca100_spi_board_info));
374 imx27_add_spi_imx0(&pca100_spi0_gpiod_table);
376 imx27_add_imx_fb(&pca100_fb_data);
379 imx27_add_imx2_wdt();
383 static void __init pca100_late_init(void)
385 imx27_add_imx_ssi(0, &pca100_ssi_pdata);
387 imx27_add_mxc_mmc(1, &sdhc_pdata);
389 gpio_request(OTG_PHY_CS_GPIO, "usb-otg-cs");
390 gpio_direction_output(OTG_PHY_CS_GPIO, 1);
391 gpio_request(USBH2_PHY_CS_GPIO, "usb-host2-cs");
392 gpio_direction_output(USBH2_PHY_CS_GPIO, 1);
395 otg_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
396 ULPI_OTG_DRVVBUS_EXT);
399 imx27_add_mxc_ehci_otg(&otg_pdata);
401 gpio_set_value(OTG_PHY_CS_GPIO, 0);
402 imx27_add_fsl_usb2_udc(&otg_device_pdata);
405 usbh2_pdata.otg = imx_otg_ulpi_create(
406 ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
409 imx27_add_mxc_ehci_hs(2, &usbh2_pdata);
412 static void __init pca100_timer_init(void)
414 mx27_clocks_init(26000000);
417 MACHINE_START(PCA100, "phyCARD-i.MX27")
418 .atag_offset = 0x100,
419 .map_io = mx27_map_io,
420 .init_early = imx27_init_early,
421 .init_irq = mx27_init_irq,
422 .init_machine = pca100_init,
423 .init_late = pca100_late_init,
424 .init_time = pca100_timer_init,
425 .restart = mxc_restart,