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e00f0b4a VL |
1 | /* |
2 | * Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group | |
3 | * | |
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. | |
8 | * | |
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. | |
13 | * | |
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 | |
17 | */ | |
18 | ||
04ea3c80 | 19 | #include <linux/delay.h> |
45b131a7 | 20 | #include <linux/gpio.h> |
e00f0b4a | 21 | #include <linux/init.h> |
45b131a7 | 22 | #include <linux/interrupt.h> |
04ea3c80 | 23 | #include <linux/i2c.h> |
33c4d919 | 24 | #include <linux/spi/spi.h> |
e00f0b4a | 25 | #include <linux/platform_device.h> |
220bbcea | 26 | #include <linux/types.h> |
e00f0b4a | 27 | |
d67d1075 VL |
28 | #include <linux/usb/otg.h> |
29 | ||
e00f0b4a | 30 | #include <mach/common.h> |
220bbcea | 31 | #include <mach/hardware.h> |
e00f0b4a VL |
32 | #include <mach/imx-uart.h> |
33 | #include <mach/iomux-mx3.h> | |
45b131a7 | 34 | #include <mach/mmc.h> |
d67d1075 VL |
35 | #include <mach/mxc_ehci.h> |
36 | #include <mach/ulpi.h> | |
e00f0b4a | 37 | |
04ea3c80 VL |
38 | #include <media/soc_camera.h> |
39 | ||
e00f0b4a VL |
40 | #include "devices.h" |
41 | ||
56c7a45b VL |
42 | static unsigned int marxbot_pins[] = { |
43 | /* SDHC2 */ | |
44 | MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2, | |
45 | MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0, | |
46 | MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD, | |
47 | MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29, | |
48 | /* CSI */ | |
56c7a45b VL |
49 | MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7, |
50 | MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9, | |
51 | MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11, | |
52 | MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13, | |
53 | MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15, | |
54 | MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK, | |
55 | MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC, | |
04ea3c80 | 56 | MX31_PIN_CSI_D4__GPIO3_4, MX31_PIN_CSI_D5__GPIO3_5, |
56c7a45b VL |
57 | MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1, |
58 | MX31_PIN_TXD2__GPIO1_28, | |
2718c15c VL |
59 | /* dsPIC resets */ |
60 | MX31_PIN_STXD5__GPIO1_21, MX31_PIN_SRXD5__GPIO1_22, | |
10949fff VL |
61 | /*battery detection */ |
62 | MX31_PIN_LCS0__GPIO3_23, | |
d67d1075 VL |
63 | /* USB H1 */ |
64 | MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM, | |
65 | MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP, | |
66 | MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB, | |
67 | MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND, | |
68 | MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12, | |
56c7a45b VL |
69 | }; |
70 | ||
45b131a7 VL |
71 | #define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR) |
72 | #define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW) | |
73 | ||
74 | static int marxbot_sdhc2_get_ro(struct device *dev) | |
75 | { | |
563abb4b | 76 | return !gpio_get_value(SDHC2_WP); |
45b131a7 VL |
77 | } |
78 | ||
79 | static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq, | |
80 | void *data) | |
81 | { | |
4f163eb8 SH |
82 | int ret; |
83 | ||
84 | ret = gpio_request(SDHC2_CD, "sdhc-detect"); | |
85 | if (ret) | |
86 | return ret; | |
87 | ||
88 | gpio_direction_input(SDHC2_CD); | |
89 | ||
90 | ret = gpio_request(SDHC2_WP, "sdhc-wp"); | |
91 | if (ret) | |
92 | goto err_gpio_free; | |
93 | gpio_direction_input(SDHC2_WP); | |
94 | ||
95 | ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq, | |
45b131a7 VL |
96 | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, |
97 | "sdhc2-card-detect", data); | |
4f163eb8 SH |
98 | if (ret) |
99 | goto err_gpio_free_2; | |
100 | ||
101 | return 0; | |
102 | ||
103 | err_gpio_free_2: | |
104 | gpio_free(SDHC2_WP); | |
105 | err_gpio_free: | |
106 | gpio_free(SDHC2_CD); | |
107 | ||
108 | return ret; | |
45b131a7 VL |
109 | } |
110 | ||
111 | static void marxbot_sdhc2_exit(struct device *dev, void *data) | |
112 | { | |
113 | free_irq(gpio_to_irq(SDHC2_CD), data); | |
4f163eb8 SH |
114 | gpio_free(SDHC2_WP); |
115 | gpio_free(SDHC2_CD); | |
45b131a7 VL |
116 | } |
117 | ||
118 | static struct imxmmc_platform_data sdhc2_pdata = { | |
119 | .get_ro = marxbot_sdhc2_get_ro, | |
120 | .init = marxbot_sdhc2_init, | |
121 | .exit = marxbot_sdhc2_exit, | |
122 | }; | |
123 | ||
2718c15c VL |
124 | #define TRSLAT_RST_B IOMUX_TO_GPIO(MX31_PIN_STXD5) |
125 | #define DSPICS_RST_B IOMUX_TO_GPIO(MX31_PIN_SRXD5) | |
126 | ||
127 | static void dspics_resets_init(void) | |
128 | { | |
129 | if (!gpio_request(TRSLAT_RST_B, "translator-rst")) { | |
130 | gpio_direction_output(TRSLAT_RST_B, 1); | |
131 | gpio_export(TRSLAT_RST_B, false); | |
132 | } | |
133 | ||
134 | if (!gpio_request(DSPICS_RST_B, "dspics-rst")) { | |
135 | gpio_direction_output(DSPICS_RST_B, 1); | |
136 | gpio_export(DSPICS_RST_B, false); | |
137 | } | |
138 | } | |
139 | ||
33c4d919 VL |
140 | static struct spi_board_info marxbot_spi_board_info[] __initdata = { |
141 | { | |
142 | .modalias = "spidev", | |
143 | .max_speed_hz = 300000, | |
144 | .bus_num = 1, | |
145 | .chip_select = 1, /* according spi1_cs[] ! */ | |
146 | }, | |
147 | }; | |
148 | ||
04ea3c80 VL |
149 | #define TURRETCAM_POWER IOMUX_TO_GPIO(MX31_PIN_GPIO3_1) |
150 | #define BASECAM_POWER IOMUX_TO_GPIO(MX31_PIN_CSI_D5) | |
151 | #define TURRETCAM_RST_B IOMUX_TO_GPIO(MX31_PIN_GPIO3_0) | |
152 | #define BASECAM_RST_B IOMUX_TO_GPIO(MX31_PIN_CSI_D4) | |
153 | #define CAM_CHOICE IOMUX_TO_GPIO(MX31_PIN_TXD2) | |
154 | ||
155 | static int marxbot_basecam_power(struct device *dev, int on) | |
156 | { | |
157 | gpio_set_value(BASECAM_POWER, !on); | |
158 | return 0; | |
159 | } | |
160 | ||
161 | static int marxbot_basecam_reset(struct device *dev) | |
162 | { | |
163 | gpio_set_value(BASECAM_RST_B, 0); | |
164 | udelay(100); | |
165 | gpio_set_value(BASECAM_RST_B, 1); | |
166 | return 0; | |
167 | } | |
168 | ||
169 | static struct i2c_board_info marxbot_i2c_devices[] = { | |
170 | { | |
171 | I2C_BOARD_INFO("mt9t031", 0x5d), | |
172 | }, | |
173 | }; | |
174 | ||
175 | static struct soc_camera_link base_iclink = { | |
176 | .bus_id = 0, /* Must match with the camera ID */ | |
177 | .power = marxbot_basecam_power, | |
178 | .reset = marxbot_basecam_reset, | |
179 | .board_info = &marxbot_i2c_devices[0], | |
180 | .i2c_adapter_id = 0, | |
181 | .module_name = "mt9t031", | |
182 | }; | |
183 | ||
184 | static struct platform_device marxbot_camera[] = { | |
185 | { | |
186 | .name = "soc-camera-pdrv", | |
187 | .id = 0, | |
188 | .dev = { | |
189 | .platform_data = &base_iclink, | |
190 | }, | |
191 | }, | |
192 | }; | |
193 | ||
194 | static struct platform_device *marxbot_cameras[] __initdata = { | |
195 | &marxbot_camera[0], | |
196 | }; | |
197 | ||
198 | static int __init marxbot_cam_init(void) | |
199 | { | |
200 | int ret = gpio_request(CAM_CHOICE, "cam-choice"); | |
201 | if (ret) | |
202 | return ret; | |
203 | gpio_direction_output(CAM_CHOICE, 1); | |
204 | ||
205 | ret = gpio_request(BASECAM_RST_B, "basecam-reset"); | |
206 | if (ret) | |
207 | return ret; | |
208 | gpio_direction_output(BASECAM_RST_B, 1); | |
209 | ret = gpio_request(BASECAM_POWER, "basecam-standby"); | |
210 | if (ret) | |
211 | return ret; | |
212 | gpio_direction_output(BASECAM_POWER, 0); | |
213 | ||
214 | ret = gpio_request(TURRETCAM_RST_B, "turretcam-reset"); | |
215 | if (ret) | |
216 | return ret; | |
217 | gpio_direction_output(TURRETCAM_RST_B, 1); | |
218 | ret = gpio_request(TURRETCAM_POWER, "turretcam-standby"); | |
219 | if (ret) | |
220 | return ret; | |
221 | gpio_direction_output(TURRETCAM_POWER, 0); | |
222 | ||
223 | return 0; | |
224 | } | |
225 | ||
d67d1075 VL |
226 | #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \ |
227 | PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU) | |
228 | ||
229 | static int marxbot_usbh1_hw_init(struct platform_device *pdev) | |
230 | { | |
231 | mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true); | |
232 | ||
233 | mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG); | |
234 | mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG); | |
235 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG); | |
236 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG); | |
237 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG); | |
238 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG); | |
239 | mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG); | |
240 | mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG); | |
241 | ||
242 | return 0; | |
243 | } | |
244 | ||
245 | #define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B) | |
246 | #define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE) | |
247 | ||
248 | static int marxbot_isp1105_init(struct otg_transceiver *otg) | |
249 | { | |
250 | int ret = gpio_request(USBH1_MODE, "usbh1-mode"); | |
251 | if (ret) | |
252 | return ret; | |
253 | /* single ended */ | |
254 | gpio_direction_output(USBH1_MODE, 0); | |
255 | ||
256 | ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen"); | |
257 | if (ret) { | |
258 | gpio_free(USBH1_MODE); | |
259 | return ret; | |
260 | } | |
261 | gpio_direction_output(USBH1_VBUSEN_B, 1); | |
262 | ||
263 | return 0; | |
264 | } | |
265 | ||
266 | ||
267 | static int marxbot_isp1105_set_vbus(struct otg_transceiver *otg, bool on) | |
268 | { | |
269 | if (on) | |
270 | gpio_set_value(USBH1_VBUSEN_B, 0); | |
271 | else | |
272 | gpio_set_value(USBH1_VBUSEN_B, 1); | |
273 | ||
274 | return 0; | |
275 | } | |
276 | ||
277 | static struct mxc_usbh_platform_data usbh1_pdata = { | |
278 | .init = marxbot_usbh1_hw_init, | |
279 | .portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL, | |
280 | .flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_SINGLE_UNI, | |
281 | }; | |
282 | ||
283 | static int __init marxbot_usbh1_init(void) | |
284 | { | |
285 | struct otg_transceiver *otg; | |
286 | ||
287 | otg = kzalloc(sizeof(*otg), GFP_KERNEL); | |
288 | if (!otg) | |
289 | return -ENOMEM; | |
290 | ||
291 | otg->label = "ISP1105"; | |
292 | otg->init = marxbot_isp1105_init; | |
293 | otg->set_vbus = marxbot_isp1105_set_vbus; | |
294 | ||
295 | usbh1_pdata.otg = otg; | |
296 | ||
4c21186b | 297 | return mxc_register_device(&mxc_usbh1, &usbh1_pdata); |
d67d1075 VL |
298 | } |
299 | ||
e00f0b4a VL |
300 | /* |
301 | * system init for baseboard usage. Will be called by mx31moboard init. | |
302 | */ | |
303 | void __init mx31moboard_marxbot_init(void) | |
304 | { | |
305 | printk(KERN_INFO "Initializing mx31marxbot peripherals\n"); | |
56c7a45b VL |
306 | |
307 | mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins), | |
308 | "marxbot"); | |
45b131a7 | 309 | |
2718c15c VL |
310 | dspics_resets_init(); |
311 | ||
45b131a7 | 312 | mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata); |
10949fff | 313 | |
33c4d919 VL |
314 | spi_register_board_info(marxbot_spi_board_info, |
315 | ARRAY_SIZE(marxbot_spi_board_info)); | |
316 | ||
04ea3c80 VL |
317 | marxbot_cam_init(); |
318 | platform_add_devices(marxbot_cameras, ARRAY_SIZE(marxbot_cameras)); | |
319 | ||
10949fff VL |
320 | /* battery present pin */ |
321 | gpio_request(IOMUX_TO_GPIO(MX31_PIN_LCS0), "bat-present"); | |
322 | gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_LCS0)); | |
323 | gpio_export(IOMUX_TO_GPIO(MX31_PIN_LCS0), false); | |
d67d1075 VL |
324 | |
325 | marxbot_usbh1_init(); | |
e00f0b4a | 326 | } |