2 * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (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.
15 #include <linux/delay.h>
16 #include <linux/gpio.h>
17 #include <linux/init.h>
18 #include <linux/interrupt.h>
19 #include <linux/i2c.h>
20 #include <linux/spi/spi.h>
21 #include <linux/slab.h>
22 #include <linux/platform_device.h>
23 #include <linux/types.h>
24 #include <linux/fsl_devices.h>
26 #include <linux/usb/otg.h>
28 #include <mach/common.h>
29 #include <mach/hardware.h>
30 #include <mach/imx-uart.h>
31 #include <mach/iomux-mx3.h>
33 #include <mach/mxc_ehci.h>
34 #include <mach/ulpi.h>
36 #include <media/soc_camera.h>
40 static unsigned int marxbot_pins[] = {
42 MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
43 MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
44 MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
45 MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
47 MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7,
48 MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9,
49 MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11,
50 MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13,
51 MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15,
52 MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK,
53 MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC,
54 MX31_PIN_CSI_D4__GPIO3_4, MX31_PIN_CSI_D5__GPIO3_5,
55 MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
56 MX31_PIN_TXD2__GPIO1_28,
58 MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22,
59 /*battery detection */
60 MX31_PIN_LCS0__GPIO3_23,
62 MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
63 MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
64 MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
65 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
66 MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
68 MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
69 MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
72 #define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
73 #define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
75 static int marxbot_sdhc2_get_ro(struct device *dev)
77 return !gpio_get_value(SDHC2_WP);
80 static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
85 ret = gpio_request(SDHC2_CD, "sdhc-detect");
89 gpio_direction_input(SDHC2_CD);
91 ret = gpio_request(SDHC2_WP, "sdhc-wp");
94 gpio_direction_input(SDHC2_WP);
96 ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
97 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
98 "sdhc2-card-detect", data);
100 goto err_gpio_free_2;
112 static void marxbot_sdhc2_exit(struct device *dev, void *data)
114 free_irq(gpio_to_irq(SDHC2_CD), data);
119 static struct imxmmc_platform_data sdhc2_pdata = {
120 .get_ro = marxbot_sdhc2_get_ro,
121 .init = marxbot_sdhc2_init,
122 .exit = marxbot_sdhc2_exit,
125 #define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_STXD5)
126 #define DSPICS_RST_B IOMUX_TO_GPIO(MX31_PIN_SRXD5)
128 static void dspics_resets_init(void)
130 if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
131 gpio_direction_output(TRSLAT_RST_B, 0);
132 gpio_export(TRSLAT_RST_B, false);
135 if (!gpio_request(DSPICS_RST_B, "dspics-rst")) {
136 gpio_direction_output(DSPICS_RST_B, 0);
137 gpio_export(DSPICS_RST_B, false);
141 static struct spi_board_info marxbot_spi_board_info[] __initdata = {
143 .modalias = "spidev",
144 .max_speed_hz = 300000,
146 .chip_select = 1, /* according spi1_cs[] ! */
150 #define TURRETCAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
151 #define BASECAM_POWER IOMUX_TO_GPIO(MX31_PIN_CSI_D5)
152 #define TURRETCAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
153 #define BASECAM_RST_B IOMUX_TO_GPIO(MX31_PIN_CSI_D4)
154 #define CAM_CHOICE IOMUX_TO_GPIO(MX31_PIN_TXD2)
156 static int marxbot_basecam_power(struct device *dev, int on)
158 gpio_set_value(BASECAM_POWER, !on);
162 static int marxbot_basecam_reset(struct device *dev)
164 gpio_set_value(BASECAM_RST_B, 0);
166 gpio_set_value(BASECAM_RST_B, 1);
170 static struct i2c_board_info marxbot_i2c_devices[] = {
172 I2C_BOARD_INFO("mt9t031", 0x5d),
176 static struct soc_camera_link base_iclink = {
177 .bus_id = 0, /* Must match with the camera ID */
178 .power = marxbot_basecam_power,
179 .reset = marxbot_basecam_reset,
180 .board_info = &marxbot_i2c_devices[0],
182 .module_name = "mt9t031",
185 static struct platform_device marxbot_camera[] = {
187 .name = "soc-camera-pdrv",
190 .platform_data = &base_iclink,
195 static struct platform_device *marxbot_cameras[] __initdata = {
199 static int __init marxbot_cam_init(void)
201 int ret = gpio_request(CAM_CHOICE, "cam-choice");
204 gpio_direction_output(CAM_CHOICE, 0);
206 ret = gpio_request(BASECAM_RST_B, "basecam-reset");
209 gpio_direction_output(BASECAM_RST_B, 1);
210 ret = gpio_request(BASECAM_POWER, "basecam-standby");
213 gpio_direction_output(BASECAM_POWER, 0);
215 ret = gpio_request(TURRETCAM_RST_B, "turretcam-reset");
218 gpio_direction_output(TURRETCAM_RST_B, 1);
219 ret = gpio_request(TURRETCAM_POWER, "turretcam-standby");
222 gpio_direction_output(TURRETCAM_POWER, 0);
227 #define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
228 #define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
229 #define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
230 #define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
232 static void marxbot_init_sel_gpios(void)
234 if (!gpio_request(SEL0, "sel0")) {
235 gpio_direction_input(SEL0);
236 gpio_export(SEL0, true);
239 if (!gpio_request(SEL1, "sel1")) {
240 gpio_direction_input(SEL1);
241 gpio_export(SEL1, true);
244 if (!gpio_request(SEL2, "sel2")) {
245 gpio_direction_input(SEL2);
246 gpio_export(SEL2, true);
249 if (!gpio_request(SEL3, "sel3")) {
250 gpio_direction_input(SEL3);
251 gpio_export(SEL3, true);
255 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
256 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
258 static int marxbot_usbh1_hw_init(struct platform_device *pdev)
260 mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
262 mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
263 mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
264 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
265 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
266 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
267 mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
268 mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
269 mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
274 #define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
275 #define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
277 static int marxbot_isp1105_init(struct otg_transceiver *otg)
279 int ret = gpio_request(USBH1_MODE, "usbh1-mode");
283 gpio_direction_output(USBH1_MODE, 0);
285 ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
287 gpio_free(USBH1_MODE);
290 gpio_direction_output(USBH1_VBUSEN_B, 1);
296 static int marxbot_isp1105_set_vbus(struct otg_transceiver *otg, bool on)
299 gpio_set_value(USBH1_VBUSEN_B, 0);
301 gpio_set_value(USBH1_VBUSEN_B, 1);
306 static struct mxc_usbh_platform_data usbh1_pdata = {
307 .init = marxbot_usbh1_hw_init,
308 .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
309 .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_SINGLE_UNI,
312 static int __init marxbot_usbh1_init(void)
314 struct otg_transceiver *otg;
316 otg = kzalloc(sizeof(*otg), GFP_KERNEL);
320 otg->label = "ISP1105";
321 otg->init = marxbot_isp1105_init;
322 otg->set_vbus = marxbot_isp1105_set_vbus;
324 usbh1_pdata.otg = otg;
326 return mxc_register_device(&mxc_usbh1, &usbh1_pdata);
329 static struct fsl_usb2_platform_data usb_pdata = {
330 .operating_mode = FSL_USB2_DR_DEVICE,
331 .phy_mode = FSL_USB2_PHY_ULPI,
335 * system init for baseboard usage. Will be called by mx31moboard init.
337 void __init mx31moboard_marxbot_init(void)
339 printk(KERN_INFO "Initializing mx31marxbot peripherals\n");
341 mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins),
344 marxbot_init_sel_gpios();
346 dspics_resets_init();
348 mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
350 spi_register_board_info(marxbot_spi_board_info,
351 ARRAY_SIZE(marxbot_spi_board_info));
354 platform_add_devices(marxbot_cameras, ARRAY_SIZE(marxbot_cameras));
356 /* battery present pin */
357 gpio_request(IOMUX_TO_GPIO(MX31_PIN_LCS0), "bat-present");
358 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_LCS0));
359 gpio_export(IOMUX_TO_GPIO(MX31_PIN_LCS0), false);
361 mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
363 marxbot_usbh1_init();