[ARM] pxa/vpac270: UDC and UHC support

NOTE:
I wasn't able to get it running without reseting the HXOE (so it's there based
on my tests with the hardware). I'll have to investigate it properly when I have
more time.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

2 files changed, 79 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/include/mach/vpac270.h b/arch/arm/mach-pxa/include/mach/vpac270.h
index a77e310bcca8..9f7b460d99cc 100644
--- a/arch/arm/mach-pxa/include/mach/vpac270.h
+++ b/arch/arm/mach-pxa/include/mach/vpac270.h
@@ -31,4 +31,5 @@
 #define GPIO12_VPAC270_CF_RDY           12
 #define GPIO16_VPAC270_CF_RESET         16
 
+#define GPIO41_VPAC270_UDC_DETECT       41
 #endif
diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c
index f1b073707f03..b2bef615b390 100644
--- a/arch/arm/mach-pxa/vpac270.c
+++ b/arch/arm/mach-pxa/vpac270.c
@@ -17,6 +17,7 @@
 #include <linux/input.h>
 #include <linux/gpio.h>
 #include <linux/sysdev.h>
+#include <linux/usb/gpio_vbus.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
@@ -28,6 +29,9 @@
 #include <mach/vpac270.h>
 #include <mach/mmc.h>
 #include <mach/pxafb.h>
+#include <mach/ohci.h>
+#include <mach/pxa27x-udc.h>
+#include <mach/udc.h>
 
 #include "generic.h"
 #include "devices.h"
@@ -105,6 +109,14 @@ static unsigned long vpac270_pin_config[] __initdata = {
         GPIO12_GPIO,    /* CF RDY */
         GPIO16_GPIO,    /* CF RESET */
 
+        /* UHC */
+        GPIO88_USBH1_PWR,
+        GPIO89_USBH1_PEN,
+        GPIO119_USBH2_PWR,
+        GPIO120_USBH2_PEN,
+
+        /* UDC */
+        GPIO41_GPIO,
 };
 
 /******************************************************************************
@@ -233,6 +245,70 @@ static inline void vpac270_leds_init(void) {}
 #endif
 
 /******************************************************************************
+ * USB Host
+ ******************************************************************************/
+#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
+static int vpac270_ohci_init(struct device *dev)
+{
+        UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
+        return 0;
+}
+
+static struct pxaohci_platform_data vpac270_ohci_info = {
+        .port_mode      = PMM_PERPORT_MODE,
+        .flags          = ENABLE_PORT1 | ENABLE_PORT2 |
+                        POWER_CONTROL_LOW | POWER_SENSE_LOW,
+        .init           = vpac270_ohci_init,
+};
+
+static void __init vpac270_uhc_init(void)
+{
+        pxa_set_ohci_info(&vpac270_ohci_info);
+}
+#else
+static inline void vpac270_uhc_init(void) {}
+#endif
+
+/******************************************************************************
+ * USB Gadget
+ ******************************************************************************/
+#if defined(CONFIG_USB_GADGET_PXA27X)||defined(CONFIG_USB_GADGET_PXA27X_MODULE)
+static struct gpio_vbus_mach_info vpac270_gpio_vbus_info = {
+        .gpio_vbus              = GPIO41_VPAC270_UDC_DETECT,
+        .gpio_pullup            = -1,
+};
+
+static struct platform_device vpac270_gpio_vbus = {
+        .name   = "gpio-vbus",
+        .id     = -1,
+        .dev    = {
+                .platform_data  = &vpac270_gpio_vbus_info,
+        },
+};
+
+static void vpac270_udc_command(int cmd)
+{
+        if (cmd == PXA2XX_UDC_CMD_CONNECT)
+                UP2OCR |= UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE;
+        else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
+                UP2OCR &= ~(UP2OCR_HXOE | UP2OCR_DPPUE | UP2OCR_DPPUBE);
+}
+
+static struct pxa2xx_udc_mach_info vpac270_udc_info __initdata = {
+        .udc_command            = vpac270_udc_command,
+        .gpio_pullup            = -1,
+};
+
+static void __init vpac270_udc_init(void)
+{
+        pxa_set_udc_info(&vpac270_udc_info);
+        platform_device_register(&vpac270_gpio_vbus);
+}
+#else
+static inline void vpac270_udc_init(void) {}
+#endif
+
+/******************************************************************************
  * Framebuffer
  ******************************************************************************/
 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
@@ -312,6 +388,8 @@ static void __init vpac270_init(void)
         vpac270_nor_init();
         vpac270_leds_init();
         vpac270_keys_init();
+        vpac270_uhc_init();
+        vpac270_udc_init();
 }
 
 MACHINE_START(VPAC270, "Voipac PXA270")