diff options
| author | Fabio Estevam <fabio.estevam@freescale.com> | 2010-12-21 16:38:21 -0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-01-03 10:18:06 +0100 |
| commit | 1c50e67263a6ab8abb9234e2357bd02134fb4b99 (patch) | |
| tree | bd0a4d4dddf94ed4f50de68e97d89e7896fae4b7 /arch/arm | |
| parent | 460d30a329a4186192598131505d9f75e6c5e2bc (diff) | |
| download | talos-obmc-linux-1c50e67263a6ab8abb9234e2357bd02134fb4b99.tar.gz talos-obmc-linux-1c50e67263a6ab8abb9234e2357bd02134fb4b99.zip | |
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')
| -rw-r--r-- | arch/arm/mach-mx3/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/mach-mx3/mach-mx31_3ds.c | 36 |
2 files changed, 37 insertions, 1 deletions
diff --git a/arch/arm/mach-mx3/Kconfig b/arch/arm/mach-mx3/Kconfig index 9037c4e9bd34..0717f887cba0 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 c488491bf938..fd7b722dff63 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 " |
