You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
232 lines
6.0 KiB
232 lines
6.0 KiB
/*
|
|
* Copyright (C) 2009 Valentin Longchamp, EPFL Mobots group
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <linux/gpio.h>
|
|
#include <linux/init.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/types.h>
|
|
|
|
#include <linux/usb/otg.h>
|
|
|
|
#include <mach/common.h>
|
|
#include <mach/imx-uart.h>
|
|
#include <mach/iomux-mx3.h>
|
|
#include <mach/hardware.h>
|
|
#include <mach/mmc.h>
|
|
#include <mach/mxc_ehci.h>
|
|
#include <mach/ulpi.h>
|
|
|
|
#include "devices.h"
|
|
|
|
static unsigned int devboard_pins[] = {
|
|
/* UART1 */
|
|
MX31_PIN_CTS2__CTS2, MX31_PIN_RTS2__RTS2,
|
|
MX31_PIN_TXD2__TXD2, MX31_PIN_RXD2__RXD2,
|
|
/* SDHC2 */
|
|
MX31_PIN_PC_PWRON__SD2_DATA3, MX31_PIN_PC_VS1__SD2_DATA2,
|
|
MX31_PIN_PC_READY__SD2_DATA1, MX31_PIN_PC_WAIT_B__SD2_DATA0,
|
|
MX31_PIN_PC_CD2_B__SD2_CLK, MX31_PIN_PC_CD1_B__SD2_CMD,
|
|
MX31_PIN_ATA_DIOR__GPIO3_28, MX31_PIN_ATA_DIOW__GPIO3_29,
|
|
/* USB H1 */
|
|
MX31_PIN_CSPI1_MISO__USBH1_RXDP, MX31_PIN_CSPI1_MOSI__USBH1_RXDM,
|
|
MX31_PIN_CSPI1_SS0__USBH1_TXDM, MX31_PIN_CSPI1_SS1__USBH1_TXDP,
|
|
MX31_PIN_CSPI1_SS2__USBH1_RCV, MX31_PIN_CSPI1_SCLK__USBH1_OEB,
|
|
MX31_PIN_CSPI1_SPI_RDY__USBH1_FS, MX31_PIN_SFS6__USBH1_SUSPEND,
|
|
MX31_PIN_NFRE_B__GPIO1_11, MX31_PIN_NFALE__GPIO1_12,
|
|
/* SEL */
|
|
MX31_PIN_DTR_DCE1__GPIO2_8, MX31_PIN_DSR_DCE1__GPIO2_9,
|
|
MX31_PIN_RI_DCE1__GPIO2_10, MX31_PIN_DCD_DCE1__GPIO2_11,
|
|
};
|
|
|
|
static struct imxuart_platform_data uart_pdata = {
|
|
.flags = IMXUART_HAVE_RTSCTS,
|
|
};
|
|
|
|
#define SDHC2_CD IOMUX_TO_GPIO(MX31_PIN_ATA_DIOR)
|
|
#define SDHC2_WP IOMUX_TO_GPIO(MX31_PIN_ATA_DIOW)
|
|
|
|
static int devboard_sdhc2_get_ro(struct device *dev)
|
|
{
|
|
return !gpio_get_value(SDHC2_WP);
|
|
}
|
|
|
|
static int devboard_sdhc2_init(struct device *dev, irq_handler_t detect_irq,
|
|
void *data)
|
|
{
|
|
int ret;
|
|
|
|
ret = gpio_request(SDHC2_CD, "sdhc-detect");
|
|
if (ret)
|
|
return ret;
|
|
|
|
gpio_direction_input(SDHC2_CD);
|
|
|
|
ret = gpio_request(SDHC2_WP, "sdhc-wp");
|
|
if (ret)
|
|
goto err_gpio_free;
|
|
gpio_direction_input(SDHC2_WP);
|
|
|
|
ret = request_irq(gpio_to_irq(SDHC2_CD), detect_irq,
|
|
IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
|
|
"sdhc2-card-detect", data);
|
|
if (ret)
|
|
goto err_gpio_free_2;
|
|
|
|
return 0;
|
|
|
|
err_gpio_free_2:
|
|
gpio_free(SDHC2_WP);
|
|
err_gpio_free:
|
|
gpio_free(SDHC2_CD);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void devboard_sdhc2_exit(struct device *dev, void *data)
|
|
{
|
|
free_irq(gpio_to_irq(SDHC2_CD), data);
|
|
gpio_free(SDHC2_WP);
|
|
gpio_free(SDHC2_CD);
|
|
}
|
|
|
|
static struct imxmmc_platform_data sdhc2_pdata = {
|
|
.get_ro = devboard_sdhc2_get_ro,
|
|
.init = devboard_sdhc2_init,
|
|
.exit = devboard_sdhc2_exit,
|
|
};
|
|
|
|
#define SEL0 IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1)
|
|
#define SEL1 IOMUX_TO_GPIO(MX31_PIN_DSR_DCE1)
|
|
#define SEL2 IOMUX_TO_GPIO(MX31_PIN_RI_DCE1)
|
|
#define SEL3 IOMUX_TO_GPIO(MX31_PIN_DCD_DCE1)
|
|
|
|
static void devboard_init_sel_gpios(void)
|
|
{
|
|
if (!gpio_request(SEL0, "sel0")) {
|
|
gpio_direction_input(SEL0);
|
|
gpio_export(SEL0, true);
|
|
}
|
|
|
|
if (!gpio_request(SEL1, "sel1")) {
|
|
gpio_direction_input(SEL1);
|
|
gpio_export(SEL1, true);
|
|
}
|
|
|
|
if (!gpio_request(SEL2, "sel2")) {
|
|
gpio_direction_input(SEL2);
|
|
gpio_export(SEL2, true);
|
|
}
|
|
|
|
if (!gpio_request(SEL3, "sel3")) {
|
|
gpio_direction_input(SEL3);
|
|
gpio_export(SEL3, true);
|
|
}
|
|
}
|
|
#define USB_PAD_CFG (PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST | PAD_CTL_HYS_CMOS | \
|
|
PAD_CTL_ODE_CMOS | PAD_CTL_100K_PU)
|
|
|
|
static int devboard_usbh1_hw_init(struct platform_device *pdev)
|
|
{
|
|
mxc_iomux_set_gpr(MUX_PGP_USB_SUSPEND, true);
|
|
|
|
mxc_iomux_set_pad(MX31_PIN_CSPI1_MISO, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_CSPI1_MOSI, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_CSPI1_SS0, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_CSPI1_SS1, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_CSPI1_SS2, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_CSPI1_SCLK, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_CSPI1_SPI_RDY, USB_PAD_CFG);
|
|
mxc_iomux_set_pad(MX31_PIN_SFS6, USB_PAD_CFG);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define USBH1_VBUSEN_B IOMUX_TO_GPIO(MX31_PIN_NFRE_B)
|
|
#define USBH1_MODE IOMUX_TO_GPIO(MX31_PIN_NFALE)
|
|
|
|
static int devboard_isp1105_init(struct otg_transceiver *otg)
|
|
{
|
|
int ret = gpio_request(USBH1_MODE, "usbh1-mode");
|
|
if (ret)
|
|
return ret;
|
|
/* single ended */
|
|
gpio_direction_output(USBH1_MODE, 0);
|
|
|
|
ret = gpio_request(USBH1_VBUSEN_B, "usbh1-vbusen");
|
|
if (ret) {
|
|
gpio_free(USBH1_MODE);
|
|
return ret;
|
|
}
|
|
gpio_direction_output(USBH1_VBUSEN_B, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int devboard_isp1105_set_vbus(struct otg_transceiver *otg, bool on)
|
|
{
|
|
if (on)
|
|
gpio_set_value(USBH1_VBUSEN_B, 0);
|
|
else
|
|
gpio_set_value(USBH1_VBUSEN_B, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct mxc_usbh_platform_data usbh1_pdata = {
|
|
.init = devboard_usbh1_hw_init,
|
|
.portsc = MXC_EHCI_MODE_UTMI | MXC_EHCI_SERIAL,
|
|
.flags = MXC_EHCI_POWER_PINS_ENABLED | MXC_EHCI_INTERFACE_SINGLE_UNI,
|
|
};
|
|
|
|
static int __init devboard_usbh1_init(void)
|
|
{
|
|
struct otg_transceiver *otg;
|
|
|
|
otg = kzalloc(sizeof(*otg), GFP_KERNEL);
|
|
if (!otg)
|
|
return -ENOMEM;
|
|
|
|
otg->label = "ISP1105";
|
|
otg->init = devboard_isp1105_init;
|
|
otg->set_vbus = devboard_isp1105_set_vbus;
|
|
|
|
usbh1_pdata.otg = otg;
|
|
|
|
return mxc_register_device(&mxc_usbh1, &usbh1_pdata);
|
|
}
|
|
|
|
/*
|
|
* system init for baseboard usage. Will be called by mx31moboard init.
|
|
*/
|
|
void __init mx31moboard_devboard_init(void)
|
|
{
|
|
printk(KERN_INFO "Initializing mx31devboard peripherals\n");
|
|
|
|
mxc_iomux_setup_multiple_pins(devboard_pins, ARRAY_SIZE(devboard_pins),
|
|
"devboard");
|
|
|
|
mxc_register_device(&mxc_uart_device1, &uart_pdata);
|
|
|
|
mxc_register_device(&mxcsdhc_device1, &sdhc2_pdata);
|
|
|
|
devboard_init_sel_gpios();
|
|
|
|
devboard_usbh1_init();
|
|
}
|
|
|