提交 96cf4239 编写于 作者: F Fabio Estevam 提交者: Sascha Hauer

ARM: imx/mx27_3ds: Add USB OTG support

Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NSascha Hauer <s.hauer@pengutronix.de>
上级 130a0dda
...@@ -235,10 +235,13 @@ endchoice ...@@ -235,10 +235,13 @@ endchoice
config MACH_MX27_3DS config MACH_MX27_3DS
bool "MX27PDK platform" bool "MX27PDK platform"
select SOC_IMX27 select SOC_IMX27
select IMX_HAVE_PLATFORM_FSL_USB2_UDC
select IMX_HAVE_PLATFORM_IMX2_WDT select IMX_HAVE_PLATFORM_IMX2_WDT
select IMX_HAVE_PLATFORM_IMX_KEYPAD select IMX_HAVE_PLATFORM_IMX_KEYPAD
select IMX_HAVE_PLATFORM_IMX_UART select IMX_HAVE_PLATFORM_IMX_UART
select IMX_HAVE_PLATFORM_MXC_EHCI
select IMX_HAVE_PLATFORM_MXC_MMC select IMX_HAVE_PLATFORM_MXC_MMC
select MXC_ULPI if USB_ULPI
help help
Include support for MX27PDK platform. This includes specific Include support for MX27PDK platform. This includes specific
configurations for the board and its peripherals. configurations for the board and its peripherals.
......
...@@ -23,16 +23,22 @@ ...@@ -23,16 +23,22 @@
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/gpio.h> #include <linux/gpio.h>
#include <linux/irq.h> #include <linux/irq.h>
#include <linux/usb/otg.h>
#include <linux/usb/ulpi.h>
#include <linux/delay.h>
#include <asm/mach-types.h> #include <asm/mach-types.h>
#include <asm/mach/arch.h> #include <asm/mach/arch.h>
#include <asm/mach/time.h> #include <asm/mach/time.h>
#include <mach/hardware.h> #include <mach/hardware.h>
#include <mach/common.h> #include <mach/common.h>
#include <mach/iomux-mx27.h> #include <mach/iomux-mx27.h>
#include <mach/ulpi.h>
#include "devices-imx27.h" #include "devices-imx27.h"
#define SD1_EN_GPIO (GPIO_PORTB + 25) #define SD1_EN_GPIO (GPIO_PORTB + 25)
#define OTG_PHY_RESET_GPIO (GPIO_PORTB + 23)
static const int mx27pdk_pins[] __initconst = { static const int mx27pdk_pins[] __initconst = {
/* UART1 */ /* UART1 */
...@@ -67,6 +73,20 @@ static const int mx27pdk_pins[] __initconst = { ...@@ -67,6 +73,20 @@ static const int mx27pdk_pins[] __initconst = {
PE22_PF_SD1_CMD, PE22_PF_SD1_CMD,
PE23_PF_SD1_CLK, PE23_PF_SD1_CLK,
SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT, SD1_EN_GPIO | GPIO_GPIO | GPIO_OUT,
/* OTG */
OTG_PHY_RESET_GPIO | GPIO_GPIO | GPIO_OUT,
PC7_PF_USBOTG_DATA5,
PC8_PF_USBOTG_DATA6,
PC9_PF_USBOTG_DATA0,
PC10_PF_USBOTG_DATA2,
PC11_PF_USBOTG_DATA1,
PC12_PF_USBOTG_DATA4,
PC13_PF_USBOTG_DATA3,
PE0_PF_USBOTG_NXT,
PE1_PF_USBOTG_STP,
PE2_PF_USBOTG_DIR,
PE24_PF_USBOTG_CLK,
PE25_PF_USBOTG_DATA7,
}; };
static const struct imxuart_platform_data uart_pdata __initconst = { static const struct imxuart_platform_data uart_pdata __initconst = {
...@@ -118,6 +138,45 @@ static void mx27_3ds_sdhc1_enable_level_translator(void) ...@@ -118,6 +138,45 @@ static void mx27_3ds_sdhc1_enable_level_translator(void)
gpio_direction_output(SD1_EN_GPIO, 1); gpio_direction_output(SD1_EN_GPIO, 1);
} }
static int otg_phy_init(void)
{
gpio_request(OTG_PHY_RESET_GPIO, "usb-otg-reset");
gpio_direction_output(OTG_PHY_RESET_GPIO, 0);
mdelay(1);
gpio_set_value(OTG_PHY_RESET_GPIO, 1);
return 0;
}
#if defined(CONFIG_USB_ULPI)
static struct mxc_usbh_platform_data otg_pdata __initdata = {
.portsc = MXC_EHCI_MODE_ULPI,
.flags = MXC_EHCI_INTERFACE_DIFF_UNI,
};
#endif
static const struct fsl_usb2_platform_data otg_device_pdata __initconst = {
.operating_mode = FSL_USB2_DR_DEVICE,
.phy_mode = FSL_USB2_PHY_ULPI,
};
static int otg_mode_host;
static int __init mx27_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=", mx27_3ds_otg_mode);
static void __init mx27pdk_init(void) static void __init mx27pdk_init(void)
{ {
mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins), mxc_gpio_setup_multiple_pins(mx27pdk_pins, ARRAY_SIZE(mx27pdk_pins),
...@@ -128,6 +187,18 @@ static void __init mx27pdk_init(void) ...@@ -128,6 +187,18 @@ static void __init mx27pdk_init(void)
imx27_add_imx_keypad(&mx27_3ds_keymap_data); imx27_add_imx_keypad(&mx27_3ds_keymap_data);
imx27_add_mxc_mmc(0, &sdhc1_pdata); imx27_add_mxc_mmc(0, &sdhc1_pdata);
imx27_add_imx2_wdt(NULL); imx27_add_imx2_wdt(NULL);
otg_phy_init();
#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);
imx27_add_mxc_ehci_otg(&otg_pdata);
}
#endif
if (!otg_mode_host)
imx27_add_fsl_usb2_udc(&otg_device_pdata);
} }
static void __init mx27pdk_timer_init(void) static void __init mx27pdk_timer_init(void)
......
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