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.
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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 #include <linux/delay.h>
20 #include <linux/gpio.h>
21 #include <linux/init.h>
22 #include <linux/interrupt.h>
23 #include <linux/i2c.h>
24 #include <linux/spi/spi.h>
25 #include <linux/slab.h>
26 #include <linux/platform_device.h>
27 #include <linux/types.h>
29 #include <linux/usb/otg.h>
31 #include <mach/common.h>
32 #include <mach/hardware.h>
33 #include <mach/imx-uart.h>
34 #include <mach/iomux-mx3.h>
36 #include <mach/mxc_ehci.h>
37 #include <mach/ulpi.h>
39 #include <media/soc_camera.h>
43 static unsigned int marxbot_pins[] = {
45 MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
46 MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
47 MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
48 MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
50 MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7,
51 MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9,
52 MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11,
53 MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13,
54 MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15,
55 MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK,
56 MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC,
57 MX31_PIN_CSI_D4__GPIO3_4, MX31_PIN_CSI_D5__GPIO3_5,
58 MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
59 MX31_PIN_TXD2__GPIO1_28,
61 MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22,
62 /*battery detection */
63 MX31_PIN_LCS0__GPIO3_23,
65 MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
66 MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
67 MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
68 MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
69 MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
71 MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
72 MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
75 #define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
76 #define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
78 static int marxbot_sdhc2_get_ro(struct device *dev)
80 return !gpio_get_value(SDHC2_WP);
83 static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
88 ret = gpio_request(SDHC2_CD, "sdhc-detect");
92 gpio_direction_input(SDHC2_CD);
94 ret = gpio_request(SDHC2_WP, "sdhc-wp");
97 gpio_direction_input(SDHC2_WP);
99 ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
100 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
101 "sdhc2-card-detect", data);
103 goto err_gpio_free_2;
115 static void marxbot_sdhc2_exit(struct device *dev, void *data)
117 free_irq(gpio_to_irq(SDHC2_CD), data);
122 static struct imxmmc_platform_data sdhc2_pdata = {
123 .get_ro = marxbot_sdhc2_get_ro,
124 .init = marxbot_sdhc2_init,
125 .exit = marxbot_sdhc2_exit,
128 #define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_STXD5)
129 #define DSPICS_RST_B IOMUX_TO_GPIO(MX31_PIN_SRXD5)
131 static void dspics_resets_init(void)
133 if (!gpio_request(TRSLAT_RST_B, "translator-rst")) {
134 gpio_direction_output(TRSLAT_RST_B, 0);
135 gpio_export(TRSLAT_RST_B, false);
138 if (!gpio_request(DSPICS_RST_B, "dspics-rst")) {
139 gpio_direction_output(DSPICS_RST_B, 0);
140 gpio_export(DSPICS_RST_B, false);
144 static struct spi_board_info marxbot_spi_board_info[] __initdata = {
146 .modalias = "spidev",
147 .max_speed_hz = 300000,
149 .chip_select = 1, /* according spi1_cs[] ! */
153 #define TURRETCAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)
154 #define BASECAM_POWER IOMUX_TO_GPIO(MX31_PIN_CSI_D5)
155 #define TURRETCAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0)
156 #define BASECAM_RST_B IOMUX_TO_GPIO(MX31_PIN_CSI_D4)
157 #define CAM_CHOICE IOMUX_TO_GPIO(MX31_PIN_TXD2)
159 static int marxbot_basecam_power(struct device *dev, int on)
161 gpio_set_value(BASECAM_POWER, !on);
165 static int marxbot_basecam_reset(struct device *dev)
167 gpio_set_value(BASECAM_RST_B, 0);
169 gpio_set_value(BASECAM_RST_B, 1);
173 static struct i2c_board_info marxbot_i2c_devices[] = {
175 I2C_BOARD_INFO("mt9t031", 0x5d),
179 static struct soc_camera_link base_iclink = {
180 .bus_id = 0, /* Must match with the camera ID */
181 .power = marxbot_basecam_power,
182 .reset = marxbot_basecam_reset,
183 .board_info = &marxbot_i2c_devices[0],
185 .module_name = "mt9t031",
188 static struct platform_device marxbot_camera[] = {
190 .name = "soc-camera-pdrv",
193 .platform_data = &base_iclink,
198 static struct platform_device *marxbot_cameras[] __initdata = {
202 static int __init marxbot_cam_init(void)
204 int ret = gpio_request(CAM_CHOICE, "cam-choice");
207 gpio_direction_output(CAM_CHOICE, 0);
209 ret = gpio_request(BASECAM_RST_B, "basecam-reset");
212 gpio_direction_output(BASECAM_RST_B, 1);
213 ret = gpio_request(BASECAM_POWER, "basecam-standby");
216 gpio_direction_output(BASECAM_POWER, 0);
218 ret = gpio_request(TURRETCAM_RST_B, "turretcam-reset");
221 gpio_direction_output(TURRETCAM_RST_B, 1);
222 ret = gpio_request(TURRETCAM_POWER, "turretcam-standby");
225 gpio_direction_output(TURRETCAM_POWER, 0);
230 #define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
231 #define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
232 #define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
233 #define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
235 static void marxbot_init_sel_gpios(void)
237 if (!gpio_request(SEL0, "sel0")) {
238 gpio_direction_input(SEL0);
239 gpio_export(SEL0, true);
242 if (!gpio_request(SEL1, "sel1")) {
243 gpio_direction_input(SEL1);
244 gpio_export(SEL1, true);
247 if (!gpio_request(SEL2, "sel2")) {
248 gpio_direction_input(SEL2);
249 gpio_export(SEL2, true);
252 if (!gpio_request(SEL3, "sel3")) {
253 gpio_direction_input(SEL3);
254 gpio_export(SEL3, true);
258 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
259 PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
261 static int marxbot_usbh1_hw_init(struct platform_device *pdev)
263 mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
265 mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
266 mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
267 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
268 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
269 mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
270 mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
271 mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
272 mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
277 #define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
278 #define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
280 static int marxbot_isp1105_init(struct otg_transceiver *otg)
282 int ret = gpio_request(USBH1_MODE, "usbh1-mode");
286 gpio_direction_output(USBH1_MODE, 0);
288 ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
290 gpio_free(USBH1_MODE);
293 gpio_direction_output(USBH1_VBUSEN_B, 1);
299 static int marxbot_isp1105_set_vbus(struct otg_transceiver *otg, bool on)
302 gpio_set_value(USBH1_VBUSEN_B, 0);
304 gpio_set_value(USBH1_VBUSEN_B, 1);
309 static struct mxc_usbh_platform_data usbh1_pdata = {
310 .init = marxbot_usbh1_hw_init,
311 .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
312 .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_SINGLE_UNI,
315 static int __init marxbot_usbh1_init(void)
317 struct otg_transceiver *otg;
319 otg = kzalloc(sizeof(*otg), GFP_KERNEL);
323 otg->label = "ISP1105";
324 otg->init = marxbot_isp1105_init;
325 otg->set_vbus = marxbot_isp1105_set_vbus;
327 usbh1_pdata.otg = otg;
329 return mxc_register_device(&mxc_usbh1, &usbh1_pdata);
333 * system init for baseboard usage. Will be called by mx31moboard init.
335 void __init mx31moboard_marxbot_init(void)
337 printk(KERN_INFO "Initializing mx31marxbot peripherals\n");
339 mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins),
342 marxbot_init_sel_gpios();
344 dspics_resets_init();
346 mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
348 spi_register_board_info(marxbot_spi_board_info,
349 ARRAY_SIZE(marxbot_spi_board_info));
352 platform_add_devices(marxbot_cameras, ARRAY_SIZE(marxbot_cameras));
354 /* battery present pin */
355 gpio_request(IOMUX_TO_GPIO(MX31_PIN_LCS0), "bat-present");
356 gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_LCS0));
357 gpio_export(IOMUX_TO_GPIO(MX31_PIN_LCS0), false);
359 marxbot_usbh1_init();