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TOMOYO Linux Cross Reference
Linux/arch/arm/mach-imx/mach-mx31moboard.c

Version: ~ [ linux-5.9-rc6 ] ~ [ linux-5.8.10 ] ~ [ linux-5.7.19 ] ~ [ linux-5.6.19 ] ~ [ linux-5.5.19 ] ~ [ linux-5.4.66 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.146 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.198 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.236 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.236 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.85 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2  *  Copyright (C) 2008 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 
 15 #include <linux/delay.h>
 16 #include <linux/dma-mapping.h>
 17 #include <linux/gfp.h>
 18 #include <linux/gpio.h>
 19 #include <linux/init.h>
 20 #include <linux/interrupt.h>
 21 #include <linux/moduleparam.h>
 22 #include <linux/leds.h>
 23 #include <linux/memory.h>
 24 #include <linux/mtd/physmap.h>
 25 #include <linux/mtd/partitions.h>
 26 #include <linux/platform_device.h>
 27 #include <linux/regulator/machine.h>
 28 #include <linux/mfd/mc13783.h>
 29 #include <linux/spi/spi.h>
 30 #include <linux/types.h>
 31 #include <linux/memblock.h>
 32 #include <linux/clk.h>
 33 #include <linux/io.h>
 34 #include <linux/err.h>
 35 #include <linux/input.h>
 36 
 37 #include <linux/usb/otg.h>
 38 #include <linux/usb/ulpi.h>
 39 
 40 #include <asm/mach-types.h>
 41 #include <asm/mach/arch.h>
 42 #include <asm/mach/time.h>
 43 #include <asm/mach/map.h>
 44 #include <asm/memblock.h>
 45 #include <linux/platform_data/asoc-imx-ssi.h>
 46 
 47 #include "board-mx31moboard.h"
 48 #include "common.h"
 49 #include "devices-imx31.h"
 50 #include "hardware.h"
 51 #include "iomux-mx3.h"
 52 #include "ulpi.h"
 53 
 54 static unsigned int moboard_pins[] = {
 55         /* UART0 */
 56         MX31_PIN_TXD1__TXD1, MX31_PIN_RXD1__RXD1,
 57         MX31_PIN_CTS1__GPIO2_7,
 58         /* UART4 */
 59         MX31_PIN_PC_RST__CTS5, MX31_PIN_PC_VS2__RTS5,
 60         MX31_PIN_PC_BVD2__TXD5, MX31_PIN_PC_BVD1__RXD5,
 61         /* I2C0 */
 62         MX31_PIN_I2C_DAT__I2C1_SDA, MX31_PIN_I2C_CLK__I2C1_SCL,
 63         /* I2C1 */
 64         MX31_PIN_DCD_DTE1__I2C2_SDA, MX31_PIN_RI_DTE1__I2C2_SCL,
 65         /* SDHC1 */
 66         MX31_PIN_SD1_DATA3__SD1_DATA3, MX31_PIN_SD1_DATA2__SD1_DATA2,
 67         MX31_PIN_SD1_DATA1__SD1_DATA1, MX31_PIN_SD1_DATA0__SD1_DATA0,
 68         MX31_PIN_SD1_CLK__SD1_CLK, MX31_PIN_SD1_CMD__SD1_CMD,
 69         MX31_PIN_ATA_CS0__GPIO3_26, MX31_PIN_ATA_CS1__GPIO3_27,
 70         /* USB reset */
 71         MX31_PIN_GPIO1_0__GPIO1_0,
 72         /* USB OTG */
 73         MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
 74         MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
 75         MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
 76         MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
 77         MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
 78         MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
 79         MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
 80         MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
 81         MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
 82         MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
 83         MX31_PIN_USB_OC__GPIO1_30,
 84         /* USB H2 */
 85         MX31_PIN_USBH2_DATA0__USBH2_DATA0,
 86         MX31_PIN_USBH2_DATA1__USBH2_DATA1,
 87         MX31_PIN_STXD3__USBH2_DATA2, MX31_PIN_SRXD3__USBH2_DATA3,
 88         MX31_PIN_SCK3__USBH2_DATA4, MX31_PIN_SFS3__USBH2_DATA5,
 89         MX31_PIN_STXD6__USBH2_DATA6, MX31_PIN_SRXD6__USBH2_DATA7,
 90         MX31_PIN_USBH2_CLK__USBH2_CLK, MX31_PIN_USBH2_DIR__USBH2_DIR,
 91         MX31_PIN_USBH2_NXT__USBH2_NXT, MX31_PIN_USBH2_STP__USBH2_STP,
 92         MX31_PIN_SCK6__GPIO1_25,
 93         /* LEDs */
 94         MX31_PIN_SVEN0__GPIO2_0, MX31_PIN_STX0__GPIO2_1,
 95         MX31_PIN_SRX0__GPIO2_2, MX31_PIN_SIMPD0__GPIO2_3,
 96         /* SPI1 */
 97         MX31_PIN_CSPI2_MOSI__MOSI, MX31_PIN_CSPI2_MISO__MISO,
 98         MX31_PIN_CSPI2_SCLK__SCLK, MX31_PIN_CSPI2_SPI_RDY__SPI_RDY,
 99         MX31_PIN_CSPI2_SS0__SS0, MX31_PIN_CSPI2_SS2__SS2,
100         /* Atlas IRQ */
101         MX31_PIN_GPIO1_3__GPIO1_3,
102         /* SPI2 */
103         MX31_PIN_CSPI3_MOSI__MOSI, MX31_PIN_CSPI3_MISO__MISO,
104         MX31_PIN_CSPI3_SCLK__SCLK, MX31_PIN_CSPI3_SPI_RDY__SPI_RDY,
105         MX31_PIN_CSPI2_SS1__CSPI3_SS1,
106         /* SSI */
107         MX31_PIN_STXD4__STXD4, MX31_PIN_SRXD4__SRXD4,
108         MX31_PIN_SCK4__SCK4, MX31_PIN_SFS4__SFS4,
109 };
110 
111 static struct physmap_flash_data mx31moboard_flash_data = {
112         .width  = 2,
113 };
114 
115 static struct resource mx31moboard_flash_resource = {
116         .start  = 0xa0000000,
117         .end    = 0xa1ffffff,
118         .flags  = IORESOURCE_MEM,
119 };
120 
121 static struct platform_device mx31moboard_flash = {
122         .name   = "physmap-flash",
123         .id     = 0,
124         .dev    = {
125                 .platform_data  = &mx31moboard_flash_data,
126         },
127         .resource = &mx31moboard_flash_resource,
128         .num_resources = 1,
129 };
130 
131 static void __init moboard_uart0_init(void)
132 {
133         if (!gpio_request(IOMUX_TO_GPIO(MX31_PIN_CTS1), "uart0-cts-hack")) {
134                 gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CTS1), 0);
135                 gpio_free(IOMUX_TO_GPIO(MX31_PIN_CTS1));
136         }
137 }
138 
139 static const struct imxuart_platform_data uart0_pdata __initconst = {
140 };
141 
142 static const struct imxuart_platform_data uart4_pdata __initconst = {
143         .flags = IMXUART_HAVE_RTSCTS,
144 };
145 
146 static const struct imxi2c_platform_data moboard_i2c0_data __initconst = {
147         .bitrate = 400000,
148 };
149 
150 static const struct imxi2c_platform_data moboard_i2c1_data __initconst = {
151         .bitrate = 100000,
152 };
153 
154 static int moboard_spi1_cs[] = {
155         MXC_SPI_CS(0),
156         MXC_SPI_CS(2),
157 };
158 
159 static const struct spi_imx_master moboard_spi1_pdata __initconst = {
160         .chipselect     = moboard_spi1_cs,
161         .num_chipselect = ARRAY_SIZE(moboard_spi1_cs),
162 };
163 
164 static struct regulator_consumer_supply sdhc_consumers[] = {
165         {
166                 .dev_name = "imx31-mmc.0",
167                 .supply = "sdhc0_vcc",
168         },
169         {
170                 .dev_name = "imx31-mmc.1",
171                 .supply = "sdhc1_vcc",
172         },
173 };
174 
175 static struct regulator_init_data sdhc_vreg_data = {
176         .constraints = {
177                 .min_uV = 2700000,
178                 .max_uV = 3000000,
179                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
180                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
181                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
182                         REGULATOR_MODE_FAST,
183                 .always_on = 0,
184                 .boot_on = 1,
185         },
186         .num_consumer_supplies = ARRAY_SIZE(sdhc_consumers),
187         .consumer_supplies = sdhc_consumers,
188 };
189 
190 static struct regulator_consumer_supply cam_consumers[] = {
191         {
192                 .dev_name = "mx3_camera.0",
193                 .supply = "cam_vcc",
194         },
195 };
196 
197 static struct regulator_init_data cam_vreg_data = {
198         .constraints = {
199                 .min_uV = 2700000,
200                 .max_uV = 3000000,
201                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
202                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
203                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
204                         REGULATOR_MODE_FAST,
205                 .always_on = 0,
206                 .boot_on = 1,
207         },
208         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
209         .consumer_supplies = cam_consumers,
210 };
211 
212 static struct mc13xxx_regulator_init_data moboard_regulators[] = {
213         {
214                 .id = MC13783_REG_VMMC1,
215                 .init_data = &sdhc_vreg_data,
216         },
217         {
218                 .id = MC13783_REG_VCAM,
219                 .init_data = &cam_vreg_data,
220         },
221 };
222 
223 static struct mc13xxx_led_platform_data moboard_led[] = {
224         {
225                 .id = MC13783_LED_R1,
226                 .name = "coreboard-led-4:red",
227         },
228         {
229                 .id = MC13783_LED_G1,
230                 .name = "coreboard-led-4:green",
231         },
232         {
233                 .id = MC13783_LED_B1,
234                 .name = "coreboard-led-4:blue",
235         },
236         {
237                 .id = MC13783_LED_R2,
238                 .name = "coreboard-led-5:red",
239         },
240         {
241                 .id = MC13783_LED_G2,
242                 .name = "coreboard-led-5:green",
243         },
244         {
245                 .id = MC13783_LED_B2,
246                 .name = "coreboard-led-5:blue",
247         },
248 };
249 
250 static struct mc13xxx_leds_platform_data moboard_leds = {
251         .num_leds = ARRAY_SIZE(moboard_led),
252         .led = moboard_led,
253         .led_control[0] = MC13783_LED_C0_ENABLE | MC13783_LED_C0_ABMODE(0),
254         .led_control[1] = MC13783_LED_C1_SLEWLIM,
255         .led_control[2] = MC13783_LED_C2_SLEWLIM,
256         .led_control[3] = MC13783_LED_C3_PERIOD(0) |
257                           MC13783_LED_C3_CURRENT_R1(2) |
258                           MC13783_LED_C3_CURRENT_G1(2) |
259                           MC13783_LED_C3_CURRENT_B1(2),
260         .led_control[4] = MC13783_LED_C4_PERIOD(0) |
261                           MC13783_LED_C4_CURRENT_R2(3) |
262                           MC13783_LED_C4_CURRENT_G2(3) |
263                           MC13783_LED_C4_CURRENT_B2(3),
264 };
265 
266 static struct mc13xxx_buttons_platform_data moboard_buttons = {
267         .b1on_flags = MC13783_BUTTON_DBNC_750MS | MC13783_BUTTON_ENABLE |
268                         MC13783_BUTTON_POL_INVERT,
269         .b1on_key = KEY_POWER,
270 };
271 
272 static struct mc13xxx_codec_platform_data moboard_codec = {
273         .dac_ssi_port = MC13783_SSI1_PORT,
274         .adc_ssi_port = MC13783_SSI1_PORT,
275 };
276 
277 static struct mc13xxx_platform_data moboard_pmic = {
278         .regulators = {
279                 .regulators = moboard_regulators,
280                 .num_regulators = ARRAY_SIZE(moboard_regulators),
281         },
282         .leds = &moboard_leds,
283         .buttons = &moboard_buttons,
284         .codec = &moboard_codec,
285         .flags = MC13XXX_USE_RTC | MC13XXX_USE_ADC | MC13XXX_USE_CODEC,
286 };
287 
288 static struct imx_ssi_platform_data moboard_ssi_pdata = {
289         .flags = IMX_SSI_DMA | IMX_SSI_NET,
290 };
291 
292 static struct spi_board_info moboard_spi_board_info[] __initdata = {
293         {
294                 .modalias = "mc13783",
295                 /* irq number is run-time assigned */
296                 .max_speed_hz = 300000,
297                 .bus_num = 1,
298                 .chip_select = 0,
299                 .platform_data = &moboard_pmic,
300                 .mode = SPI_CS_HIGH,
301         },
302 };
303 
304 static int moboard_spi2_cs[] = {
305         MXC_SPI_CS(1),
306 };
307 
308 static const struct spi_imx_master moboard_spi2_pdata __initconst = {
309         .chipselect     = moboard_spi2_cs,
310         .num_chipselect = ARRAY_SIZE(moboard_spi2_cs),
311 };
312 
313 #define SDHC1_CD IOMUX_TO_GPIO(MX31_PIN_ATA_CS0)
314 #define SDHC1_WP IOMUX_TO_GPIO(MX31_PIN_ATA_CS1)
315 
316 static int moboard_sdhc1_get_ro(struct device *dev)
317 {
318         return !gpio_get_value(SDHC1_WP);
319 }
320 
321 static int moboard_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
322                 void *data)
323 {
324         int ret;
325 
326         ret = gpio_request(SDHC1_CD, "sdhc-detect");
327         if (ret)
328                 return ret;
329 
330         gpio_direction_input(SDHC1_CD);
331 
332         ret = gpio_request(SDHC1_WP, "sdhc-wp");
333         if (ret)
334                 goto err_gpio_free;
335         gpio_direction_input(SDHC1_WP);
336 
337         ret = request_irq(gpio_to_irq(SDHC1_CD), detect_irq,
338                 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
339                 "sdhc1-card-detect", data);
340         if (ret)
341                 goto err_gpio_free_2;
342 
343         return 0;
344 
345 err_gpio_free_2:
346         gpio_free(SDHC1_WP);
347 err_gpio_free:
348         gpio_free(SDHC1_CD);
349 
350         return ret;
351 }
352 
353 static void moboard_sdhc1_exit(struct device *dev, void *data)
354 {
355         free_irq(gpio_to_irq(SDHC1_CD), data);
356         gpio_free(SDHC1_WP);
357         gpio_free(SDHC1_CD);
358 }
359 
360 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
361         .get_ro = moboard_sdhc1_get_ro,
362         .init   = moboard_sdhc1_init,
363         .exit   = moboard_sdhc1_exit,
364 };
365 
366 /*
367  * this pin is dedicated for all mx31moboard systems, so we do it here
368  */
369 #define USB_RESET_B     IOMUX_TO_GPIO(MX31_PIN_GPIO1_0)
370 #define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
371                       PAD_CTL_ODE_CMOS)
372 
373 #define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
374 #define USBH2_EN_B IOMUX_TO_GPIO(MX31_PIN_SCK6)
375 
376 static void usb_xcvr_reset(void)
377 {
378         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
379         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
380         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, USB_PAD_CFG | PAD_CTL_100K_PD);
381         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, USB_PAD_CFG | PAD_CTL_100K_PD);
382         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, USB_PAD_CFG | PAD_CTL_100K_PD);
383         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, USB_PAD_CFG | PAD_CTL_100K_PD);
384         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, USB_PAD_CFG | PAD_CTL_100K_PD);
385         mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, USB_PAD_CFG | PAD_CTL_100K_PD);
386         mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
387         mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
388         mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
389         mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
390 
391         mxc_iomux_set_gpr(MUX_PGP_UH2, true);
392         mxc_iomux_set_pad(MX31_PIN_USBH2_CLK, USB_PAD_CFG | PAD_CTL_100K_PU);
393         mxc_iomux_set_pad(MX31_PIN_USBH2_DIR, USB_PAD_CFG | PAD_CTL_100K_PU);
394         mxc_iomux_set_pad(MX31_PIN_USBH2_NXT, USB_PAD_CFG | PAD_CTL_100K_PU);
395         mxc_iomux_set_pad(MX31_PIN_USBH2_STP, USB_PAD_CFG | PAD_CTL_100K_PU);
396         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA0, USB_PAD_CFG | PAD_CTL_100K_PD);
397         mxc_iomux_set_pad(MX31_PIN_USBH2_DATA1, USB_PAD_CFG | PAD_CTL_100K_PD);
398         mxc_iomux_set_pad(MX31_PIN_SRXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
399         mxc_iomux_set_pad(MX31_PIN_STXD6, USB_PAD_CFG | PAD_CTL_100K_PD);
400         mxc_iomux_set_pad(MX31_PIN_SFS3, USB_PAD_CFG | PAD_CTL_100K_PD);
401         mxc_iomux_set_pad(MX31_PIN_SCK3, USB_PAD_CFG | PAD_CTL_100K_PD);
402         mxc_iomux_set_pad(MX31_PIN_SRXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
403         mxc_iomux_set_pad(MX31_PIN_STXD3, USB_PAD_CFG | PAD_CTL_100K_PD);
404 
405         gpio_request(OTG_EN_B, "usb-udc-en");
406         gpio_direction_output(OTG_EN_B, 0);
407         gpio_request(USBH2_EN_B, "usbh2-en");
408         gpio_direction_output(USBH2_EN_B, 0);
409 
410         gpio_request(USB_RESET_B, "usb-reset");
411         gpio_direction_output(USB_RESET_B, 0);
412         mdelay(1);
413         gpio_set_value(USB_RESET_B, 1);
414         mdelay(1);
415 }
416 
417 static int moboard_usbh2_init_hw(struct platform_device *pdev)
418 {
419         return mx31_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
420 }
421 
422 static struct mxc_usbh_platform_data usbh2_pdata __initdata = {
423         .init   = moboard_usbh2_init_hw,
424         .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
425 };
426 
427 static int __init moboard_usbh2_init(void)
428 {
429         struct platform_device *pdev;
430 
431         usbh2_pdata.otg = imx_otg_ulpi_create(ULPI_OTG_DRVVBUS |
432                         ULPI_OTG_DRVVBUS_EXT);
433         if (!usbh2_pdata.otg)
434                 return -ENODEV;
435 
436         pdev = imx31_add_mxc_ehci_hs(2, &usbh2_pdata);
437         if (IS_ERR(pdev))
438                 return PTR_ERR(pdev);
439 
440         return 0;
441 }
442 
443 static const struct gpio_led mx31moboard_leds[] __initconst = {
444         {
445                 .name   = "coreboard-led-0:red:running",
446                 .default_trigger = "heartbeat",
447                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SVEN0),
448         }, {
449                 .name   = "coreboard-led-1:red",
450                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_STX0),
451         }, {
452                 .name   = "coreboard-led-2:red",
453                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SRX0),
454         }, {
455                 .name   = "coreboard-led-3:red",
456                 .gpio   = IOMUX_TO_GPIO(MX31_PIN_SIMPD0),
457         },
458 };
459 
460 static const struct gpio_led_platform_data mx31moboard_led_pdata __initconst = {
461         .num_leds       = ARRAY_SIZE(mx31moboard_leds),
462         .leds           = mx31moboard_leds,
463 };
464 
465 static struct platform_device *devices[] __initdata = {
466         &mx31moboard_flash,
467 };
468 
469 static struct mx3_camera_pdata camera_pdata __initdata = {
470         .flags          = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
471         .mclk_10khz     = 4800,
472 };
473 
474 static phys_addr_t mx3_camera_base __initdata;
475 #define MX3_CAMERA_BUF_SIZE SZ_4M
476 
477 static int __init mx31moboard_init_cam(void)
478 {
479         int dma, ret = -ENOMEM;
480         struct platform_device *pdev;
481 
482         imx31_add_ipu_core();
483 
484         pdev = imx31_alloc_mx3_camera(&camera_pdata);
485         if (IS_ERR(pdev))
486                 return PTR_ERR(pdev);
487 
488         dma = dma_declare_coherent_memory(&pdev->dev,
489                                         mx3_camera_base, mx3_camera_base,
490                                         MX3_CAMERA_BUF_SIZE,
491                                         DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
492         if (!(dma & DMA_MEMORY_MAP))
493                 goto err;
494 
495         ret = platform_device_add(pdev);
496         if (ret)
497 err:
498                 platform_device_put(pdev);
499 
500         return ret;
501 
502 }
503 
504 static void mx31moboard_poweroff(void)
505 {
506         struct clk *clk = clk_get_sys("imx2-wdt.0", NULL);
507 
508         if (!IS_ERR(clk))
509                 clk_prepare_enable(clk);
510 
511         mxc_iomux_mode(MX31_PIN_WATCHDOG_RST__WATCHDOG_RST);
512 
513         __raw_writew(1 << 6 | 1 << 2, MX31_IO_ADDRESS(MX31_WDOG_BASE_ADDR));
514 }
515 
516 static int mx31moboard_baseboard;
517 core_param(mx31moboard_baseboard, mx31moboard_baseboard, int, 0444);
518 
519 /*
520  * Board specific initialization.
521  */
522 static void __init mx31moboard_init(void)
523 {
524         imx31_soc_init();
525 
526         mxc_iomux_setup_multiple_pins(moboard_pins, ARRAY_SIZE(moboard_pins),
527                 "moboard");
528 
529         platform_add_devices(devices, ARRAY_SIZE(devices));
530         gpio_led_register_device(-1, &mx31moboard_led_pdata);
531 
532         imx31_add_imx2_wdt();
533 
534         moboard_uart0_init();
535         imx31_add_imx_uart0(&uart0_pdata);
536         imx31_add_imx_uart4(&uart4_pdata);
537 
538         imx31_add_imx_i2c0(&moboard_i2c0_data);
539         imx31_add_imx_i2c1(&moboard_i2c1_data);
540 
541         imx31_add_spi_imx1(&moboard_spi1_pdata);
542         imx31_add_spi_imx2(&moboard_spi2_pdata);
543 
544         gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3), "pmic-irq");
545         gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
546         moboard_spi_board_info[0].irq =
547                         gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_3));
548         spi_register_board_info(moboard_spi_board_info,
549                 ARRAY_SIZE(moboard_spi_board_info));
550 
551         imx31_add_mxc_mmc(0, &sdhc1_pdata);
552 
553         mx31moboard_init_cam();
554 
555         usb_xcvr_reset();
556 
557         moboard_usbh2_init();
558 
559         imx31_add_imx_ssi(0, &moboard_ssi_pdata);
560 
561         imx_add_platform_device("imx_mc13783", 0, NULL, 0, NULL, 0);
562 
563         pm_power_off = mx31moboard_poweroff;
564 
565         switch (mx31moboard_baseboard) {
566         case MX31NOBOARD:
567                 break;
568         case MX31DEVBOARD:
569                 mx31moboard_devboard_init();
570                 break;
571         case MX31MARXBOT:
572                 mx31moboard_marxbot_init();
573                 break;
574         case MX31SMARTBOT:
575         case MX31EYEBOT:
576                 mx31moboard_smartbot_init(mx31moboard_baseboard);
577                 break;
578         default:
579                 printk(KERN_ERR "Illegal mx31moboard_baseboard type %d\n",
580                         mx31moboard_baseboard);
581         }
582 }
583 
584 static void __init mx31moboard_timer_init(void)
585 {
586         mx31_clocks_init(26000000);
587 }
588 
589 static void __init mx31moboard_reserve(void)
590 {
591         /* reserve 4 MiB for mx3-camera */
592         mx3_camera_base = arm_memblock_steal(MX3_CAMERA_BUF_SIZE,
593                         MX3_CAMERA_BUF_SIZE);
594 }
595 
596 MACHINE_START(MX31MOBOARD, "EPFL Mobots mx31moboard")
597         /* Maintainer: Philippe Retornaz, EPFL Mobots group */
598         .atag_offset = 0x100,
599         .reserve = mx31moboard_reserve,
600         .map_io = mx31_map_io,
601         .init_early = imx31_init_early,
602         .init_irq = mx31_init_irq,
603         .handle_irq = imx31_handle_irq,
604         .init_time      = mx31moboard_timer_init,
605         .init_machine = mx31moboard_init,
606         .restart        = mxc_restart,
607 MACHINE_END
608 

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