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/fsl_devices.h>
20 #include <linux/gpio.h>
21 #include <linux/init.h>
22 #include <linux/interrupt.h>
23 #include <linux/platform_device.h>
24 #include <linux/types.h>
26 #include <mach/common.h>
27 #include <mach/hardware.h>
28 #include <mach/imx-uart.h>
29 #include <mach/iomux-mx3.h>
34 static unsigned int marxbot_pins[] = {
36 MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
37 MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
38 MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
39 MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
41 MX31_PIN_CSI_D4__CSI_D4, MX31_PIN_CSI_D5__CSI_D5,
42 MX31_PIN_CSI_D6__CSI_D6, MX31_PIN_CSI_D7__CSI_D7,
43 MX31_PIN_CSI_D8__CSI_D8, MX31_PIN_CSI_D9__CSI_D9,
44 MX31_PIN_CSI_D10__CSI_D10, MX31_PIN_CSI_D11__CSI_D11,
45 MX31_PIN_CSI_D12__CSI_D12, MX31_PIN_CSI_D13__CSI_D13,
46 MX31_PIN_CSI_D14__CSI_D14, MX31_PIN_CSI_D15__CSI_D15,
47 MX31_PIN_CSI_HSYNC__CSI_HSYNC, MX31_PIN_CSI_MCLK__CSI_MCLK,
48 MX31_PIN_CSI_PIXCLK__CSI_PIXCLK, MX31_PIN_CSI_VSYNC__CSI_VSYNC,
49 MX31_PIN_GPIO3_0__GPIO3_0, MX31_PIN_GPIO3_1__GPIO3_1,
50 MX31_PIN_TXD2__GPIO1_28,
52 MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
53 MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
54 MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
55 MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
56 MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
57 MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
58 MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
59 MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
60 MX31_PIN_USBOTG_CLK__USBOTG_CLK, MX31_PIN_USBOTG_DIR__USBOTG_DIR,
61 MX31_PIN_USBOTG_NXT__USBOTG_NXT, MX31_PIN_USBOTG_STP__USBOTG_STP,
62 MX31_PIN_USB_OC__GPIO1_30,
65 #define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
66 #define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
68 static int marxbot_sdhc2_get_ro(struct device *dev)
70 return gpio_get_value(SDHC2_WP);
73 static int marxbot_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
78 ret = gpio_request(SDHC2_CD, "sdhc-detect");
82 gpio_direction_input(SDHC2_CD);
84 ret = gpio_request(SDHC2_WP, "sdhc-wp");
87 gpio_direction_input(SDHC2_WP);
89 ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
90 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
91 "sdhc2-card-detect", data);
105 static void marxbot_sdhc2_exit(struct device *dev, void *data)
107 free_irq(gpio_to_irq(SDHC2_CD), data);
112 static struct imxmmc_platform_data sdhc2_pdata = {
113 .get_ro = marxbot_sdhc2_get_ro,
114 .init = marxbot_sdhc2_init,
115 .exit = marxbot_sdhc2_exit,
118 static struct fsl_usb2_platform_data usb_pdata = {
119 .operating_mode = FSL_USB2_DR_DEVICE,
120 .phy_mode = FSL_USB2_PHY_ULPI,
123 #define OTG_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST)
124 #define OTG_EN_B IOMUX_TO_GPIO(MX31_PIN_USB_OC)
126 static void marxbot_usbotg_init(void)
128 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, OTG_PAD_CFG);
129 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, OTG_PAD_CFG);
130 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, OTG_PAD_CFG);
131 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, OTG_PAD_CFG);
132 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, OTG_PAD_CFG);
133 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, OTG_PAD_CFG);
134 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, OTG_PAD_CFG);
135 mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, OTG_PAD_CFG);
136 mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, OTG_PAD_CFG);
137 mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, OTG_PAD_CFG);
138 mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, OTG_PAD_CFG);
139 mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, OTG_PAD_CFG);
141 gpio_request(OTG_EN_B, "usb-udc-en");
142 gpio_direction_output(OTG_EN_B, 0);
146 * system init for baseboard usage. Will be called by mx31moboard init.
148 void __init mx31moboard_marxbot_init(void)
150 printk(KERN_INFO "Initializing mx31marxbot peripherals\n");
152 mxc_iomux_setup_multiple_pins(marxbot_pins, ARRAY_SIZE(marxbot_pins),
155 mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
157 marxbot_usbotg_init();
158 mxc_register_device(&mxc_otg_udc_device, &usb_pdata);