mach-cpuimx27: add USB Host2 and OTG support

support copied from mach-pca100.c

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

diff --git a/arch/arm/mach-mx2/Kconfig b/arch/arm/mach-mx2/Kconfig
index 9d3a909..3f756f4 100644 (file)
--- a/arch/arm/mach-mx2/Kconfig
+++ b/arch/arm/mach-mx2/Kconfig
@@ -59,6 +59,7 @@ endchoice
 config MACH_CPUIMX27
        bool "Eukrea CPUIMX27 module"
        depends on MACH_MX27
+       select MXC_ULPI if USB_ULPI
        help
          Include support for Eukrea CPUIMX27 platform. This includes
          specific configurations for the module and its peripherals.

diff --git a/arch/arm/mach-mx2/mach-cpuimx27.c b/arch/arm/mach-mx2/mach-cpuimx27.c
index a3449ed..19877f1 100644 (file)
--- a/arch/arm/mach-mx2/mach-cpuimx27.c
+++ b/arch/arm/mach-mx2/mach-cpuimx27.c
@@ -26,6 +26,9 @@
 #include <linux/mtd/physmap.h>
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/ulpi.h>
+#include <linux/fsl_devices.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -39,6 +42,8 @@
 #include <mach/iomux-mx27.h>
 #include <mach/imx-uart.h>
 #include <mach/mxc_nand.h>
+#include <mach/mxc_ehci.h>
+#include <mach/ulpi.h>
 
 #include "devices.h"
 
@@ -93,6 +98,32 @@ static int eukrea_cpuimx27_pins[] = {
        GPIO_PORTB | 27 | GPIO_GPIO | GPIO_IN,
        GPIO_PORTB | 30 | GPIO_GPIO | GPIO_IN,
 #endif
+       /* OTG */
+       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,
+       /* USBH2 */
+       PA0_PF_USBH2_CLK,
+       PA1_PF_USBH2_DIR,
+       PA2_PF_USBH2_DATA7,
+       PA3_PF_USBH2_NXT,
+       PA4_PF_USBH2_STP,
+       PD19_AF_USBH2_DATA4,
+       PD20_AF_USBH2_DATA3,
+       PD21_AF_USBH2_DATA6,
+       PD22_AF_USBH2_DATA0,
+       PD23_AF_USBH2_DATA2,
+       PD24_AF_USBH2_DATA1,
+       PD26_AF_USBH2_DATA5,
 };
 
 static struct physmap_flash_data eukrea_cpuimx27_flash_data = {
@@ -186,6 +217,36 @@ static struct platform_device serial_device = {
 };
 #endif
 
+static struct mxc_usbh_platform_data otg_pdata = {
+       .portsc = MXC_EHCI_MODE_ULPI,
+       .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
+};
+
+static struct mxc_usbh_platform_data usbh2_pdata = {
+       .portsc = MXC_EHCI_MODE_ULPI,
+       .flags  = MXC_EHCI_INTERFACE_DIFF_UNI,
+};
+
+static struct fsl_usb2_platform_data otg_device_pdata = {
+       .operating_mode = FSL_USB2_DR_DEVICE,
+       .phy_mode       = FSL_USB2_PHY_ULPI,
+};
+
+static int otg_mode_host;
+
+static int __init eukrea_cpuimx27_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=", eukrea_cpuimx27_otg_mode);
+
 static void __init eukrea_cpuimx27_init(void)
 {
        mxc_gpio_setup_multiple_pins(eukrea_cpuimx27_pins,
@@ -216,6 +277,22 @@ static void __init eukrea_cpuimx27_init(void)
        platform_device_register(&serial_device);
 #endif
 
+#if defined(CONFIG_USB_ULPI)
+       if (otg_mode_host) {
+               otg_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+                               USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
+
+               mxc_register_device(&mxc_otg_host, &otg_pdata);
+       }
+
+       usbh2_pdata.otg = otg_ulpi_create(&mxc_ulpi_access_ops,
+                               USB_OTG_DRV_VBUS | USB_OTG_DRV_VBUS_EXT);
+
+       mxc_register_device(&mxc_usbh2, &usbh2_pdata);
+#endif
+       if (!otg_mode_host)
+               mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata);
+
 #ifdef CONFIG_MACH_EUKREA_MBIMX27_BASEBOARD
        eukrea_mbimx27_baseboard_init();
 #endif