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ARM: mx3/mx31_3ds: Add support for OTG host mode 

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
hifive-unleashed-5.1
Fabio Estevam 2010-12-21 16:38:21 -02:00 committed by Sascha Hauer
parent 460d30a329
commit 1c50e67263
2 changed files with 37 additions and 1 deletions
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2
arch/arm/mach-mx3/Kconfig
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@ -96,8 +96,10 @@ config MACH_MX31_3DS
select IMX_HAVE_PLATFORM_IMX2_WDT
select IMX_HAVE_PLATFORM_IMX_KEYPAD
select IMX_HAVE_PLATFORM_IMX_UART
select IMX_HAVE_PLATFORM_MXC_EHCI
select IMX_HAVE_PLATFORM_MXC_NAND
select IMX_HAVE_PLATFORM_SPI_IMX
select MXC_ULPI if USB_ULPI
help
Include support for MX31PDK (3DS) platform. This includes specific
configurations for the board and its peripherals.

36
arch/arm/mach-mx3/mach-mx31_3ds.c
View File

@ -22,6 +22,8 @@
#include <linux/mfd/mc13783.h>
#include <linux/spi/spi.h>
#include <linux/regulator/machine.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
@ -32,6 +34,7 @@
#include <mach/common.h>
#include <mach/iomux-mx3.h>
#include <mach/3ds_debugboard.h>
#include <mach/ulpi.h>
#include "devices-imx31.h"
#include "devices.h"
@ -212,11 +215,33 @@ usbotg_free_reset:
return err;
}
#if defined(CONFIG_USB_ULPI)
static struct mxc_usbh_platform_data otg_pdata __initdata = {
.portsc = MXC_EHCI_MODE_ULPI,
.flags = MXC_EHCI_POWER_PINS_ENABLED,
};
#endif
static const struct fsl_usb2_platform_data usbotg_pdata __initconst = {
.operating_mode = FSL_USB2_DR_DEVICE,
.phy_mode = FSL_USB2_PHY_ULPI,
};
static int otg_mode_host;
static int __init mx31_3ds_otg_mode(char *options)
{
if (!strcmp(options, "host"))
otg_mode_host = 1;
else if (!strcmp(options, "device"))
otg_mode_host = 0;
else
pr_info("otg_mode neither \"host\" nor \"device\". "
"Defaulting to device\n");
return 0;
}
__setup("otg_mode=", mx31_3ds_otg_mode);
static const struct imxuart_platform_data uart_pdata __initconst = {
.flags = IMXUART_HAVE_RTSCTS,
};
@ -247,7 +272,16 @@ static void __init mxc_board_init(void)
imx31_add_imx_keypad(&mx31_3ds_keymap_data);
mx31_3ds_usbotg_init();
imx31_add_fsl_usb2_udc(&usbotg_pdata);
#if defined(CONFIG_USB_ULPI)
if (otg_mode_host) {
otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
ULPI_OTG_DRVVBUS | ULPI_OTG_DRVVBUS_EXT);
imx31_add_mxc_ehci_otg(&otg_pdata);
}
#endif
if (!otg_mode_host)
imx31_add_fsl_usb2_udc(&usbotg_pdata);
if (mxc_expio_init(MX31_CS5_BASE_ADDR, EXPIO_PARENT_INT))
printk(KERN_WARNING "Init of the debug board failed, all "