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authorFabio Estevam <fabio.estevam@freescale.com>2010-12-21 16:38:21 -0200
committerSascha Hauer <s.hauer@pengutronix.de>2011-01-03 10:18:06 +0100
commit1c50e67263a6ab8abb9234e2357bd02134fb4b99 (patch)
treebd0a4d4dddf94ed4f50de68e97d89e7896fae4b7 /arch/arm/mach-mx3
parent460d30a329a4186192598131505d9f75e6c5e2bc (diff)
downloadop-kernel-dev-1c50e67263a6ab8abb9234e2357bd02134fb4b99.zip
op-kernel-dev-1c50e67263a6ab8abb9234e2357bd02134fb4b99.tar.gz
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>
Diffstat (limited to 'arch/arm/mach-mx3')
-rw-r--r--arch/arm/mach-mx3/Kconfig2
-rw-r--r--arch/arm/mach-mx3/mach-mx31_3ds.c36
2 files changed, 37 insertions, 1 deletions
diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig
index 9037c4e..0717f88 100644
--- a/arch/arm/mach-mx3/Kconfig
+++ b/arch/arm/mach-mx3/Kconfig
@@ -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.
diff --git a/arch/arm/mach-mx3/mach-mx31_3ds.c b/arch/arm/mach-mx3/mach-mx31_3ds.c
index c488491..fd7b722 100644
--- a/arch/arm/mach-mx3/mach-mx31_3ds.c
+++ b/arch/arm/mach-mx3/mach-mx31_3ds.c
@@ -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 "
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