[edk2,edk-platforms,v1,2/4] Platform/HiKey: add usb platform driver

diff --git a/Platform/Hisilicon/HiKey/HiKeyUsbDxe/HiKeyUsbDxe.inf b/Platform/Hisilicon/HiKey/HiKeyUsbDxe/HiKeyUsbDxe.inf
new file mode 100644
index 000000000000..bcba3f758c1a
--- /dev/null
+++ b/Platform/Hisilicon/HiKey/HiKeyUsbDxe/HiKeyUsbDxe.inf
@@ -0,0 +1,46 @@ 
+#/** @file
+#
+#  Copyright (c) 2018, Linaro. All rights reserved.
+#
+#  This program and the accompanying materials
+#  are licensed and made available under the terms and conditions of the BSD License
+#  which accompanies this distribution. The full text of the license may be found at
+#  http://opensource.org/licenses/bsd-license.php
+#  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+#**/
+
+[Defines]
+  INF_VERSION                    = 0x00010019
+  BASE_NAME                      = HiKeyUsbDxe
+  FILE_GUID                      = c5c7089e-9b00-448c-8b23-a552688e2833
+  MODULE_TYPE                    = UEFI_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = HiKeyUsbEntryPoint
+
+[Sources.common]
+  HiKeyUsbDxe.c
+
+[LibraryClasses]
+  DebugLib
+  IoLib
+  TimerLib
+  UefiBootServicesTableLib
+  UefiDriverEntryPoint
+
+[Protocols]
+  gDwUsbProtocolGuid
+  gEfiDriverBindingProtocolGuid
+  gEmbeddedGpioProtocolGuid
+
+[Packages]
+  EmbeddedPkg/Drivers/DwUsbDxe/DwUsbDxe.dec
+  EmbeddedPkg/EmbeddedPkg.dec
+  MdeModulePkg/MdeModulePkg.dec
+  MdePkg/MdePkg.dec
+  Platform/Hisilicon/HiKey/HiKey.dec
+
+[Depex]
+  TRUE
diff --git a/Platform/Hisilicon/HiKey/HiKeyUsbDxe/HiKeyUsbDxe.c b/Platform/Hisilicon/HiKey/HiKeyUsbDxe/HiKeyUsbDxe.c
new file mode 100644
index 000000000000..4d651746d590
--- /dev/null
+++ b/Platform/Hisilicon/HiKey/HiKeyUsbDxe/HiKeyUsbDxe.c
@@ -0,0 +1,280 @@ 
+/** @file
+*
+*  Copyright (c) 2018, Linaro. All rights reserved.
+*
+*  This program and the accompanying materials
+*  are licensed and made available under the terms and conditions of the BSD License
+*  which accompanies this distribution.  The full text of the license may be found at
+*  http://opensource.org/licenses/bsd-license.php
+*
+*  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+*
+**/
+
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/IoLib.h>
+#include <Library/TimerLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/UefiLib.h>
+#include <Library/UefiRuntimeServicesTableLib.h>
+
+#include <Protocol/EmbeddedGpio.h>
+#include <Protocol/DwUsb.h>
+
+#include <Hi6220.h>
+
+
+#define USB_SEL_GPIO0_3          3     // GPIO 0_3
+#define USB_5V_HUB_EN            7     // GPIO 0_7
+#define USB_ID_DET_GPIO2_5       21    // GPIO 2_5
+#define USB_VBUS_DET_GPIO2_6     22    // GPIO 2_6
+
+//
+// Jumper on pin5-6 of J15 determines whether boot to fastboot
+//
+#define DETECT_J15_FASTBOOT      24    // GPIO 3_0
+
+#define IOCG_GPIO0_BASE          0xF8001800
+#define IOCG_GPIO0_3_OFFSET      0x1C
+#define IOCG_GPIO0_7_OFFSET      0x2C
+#define IOCG_GPIO2_5_OFFSET      0x64
+#define IOCG_GPIO2_6_OFFSET      0x68
+
+#define IOCG_PULLUP              1
+#define IOCG_PULLDOWN            2
+
+#define USB_EYE_PATTERN          0x70533483
+
+#define LANG_EN                  0x409
+
+STATIC EMBEDDED_GPIO *mGpio;
+
+STATIC
+EFI_STATUS
+HiKeyDetectUsbModeInit (
+  IN VOID
+  )
+{
+  EFI_STATUS     Status;
+
+  /* set pullup on both GPIO2_5 & GPIO2_6. It's required for inupt. */
+  MmioWrite32 (IOCG_GPIO0_BASE + IOCG_GPIO2_5_OFFSET, IOCG_PULLUP);
+  MmioWrite32 (IOCG_GPIO0_BASE + IOCG_GPIO2_6_OFFSET, IOCG_PULLUP);
+
+  Status = gBS->LocateProtocol (
+                  &gEmbeddedGpioProtocolGuid,
+                  NULL,
+                  (VOID **)&mGpio
+                  );
+  if (EFI_ERROR (Status)) {
+    DEBUG ((DEBUG_ERROR, "Can't locate gEmbeddedGpioProtocolGuid\n"));
+    return Status;
+  }
+  /* power on USB HUB */
+  Status = mGpio->Set (mGpio, USB_5V_HUB_EN, GPIO_MODE_OUTPUT_0);
+  ASSERT_EFI_ERROR (Status);
+  /* start to detect USB device or host */
+  Status = mGpio->Set (mGpio, USB_SEL_GPIO0_3, GPIO_MODE_OUTPUT_0);
+  ASSERT_EFI_ERROR (Status);
+
+  Status = mGpio->Set (mGpio, USB_ID_DET_GPIO2_5, GPIO_MODE_INPUT);
+  ASSERT_EFI_ERROR (Status);
+  Status = mGpio->Set (mGpio, USB_VBUS_DET_GPIO2_6, GPIO_MODE_INPUT);
+  ASSERT_EFI_ERROR (Status);
+  return EFI_SUCCESS;
+}
+
+UINTN
+HiKeyGetUsbMode (
+  IN VOID
+  )
+{
+  EFI_STATUS     Status;
+  UINTN          GpioId, GpioVbus;
+
+  Status = mGpio->Get (mGpio, USB_ID_DET_GPIO2_5, &GpioId);
+  ASSERT_EFI_ERROR (Status);
+  Status = mGpio->Get (mGpio, USB_VBUS_DET_GPIO2_6, &GpioVbus);
+  ASSERT_EFI_ERROR (Status);
+
+  if ((GpioId == 1) && (GpioVbus == 0)) {
+    return USB_DEVICE_MODE;
+  } else if ((GpioId == 0) && (GpioVbus == 1)) {
+    return USB_CABLE_NOT_ATTACHED;
+  }
+  return USB_HOST_MODE;
+}
+
+EFI_STATUS
+HiKeyUsbPhyInit (
+  IN UINT8        Mode
+  )
+{
+  UINTN          Value;
+  UINT32         Data;
+  EFI_STATUS     Status;
+
+  Status = HiKeyDetectUsbModeInit ();
+  if (EFI_ERROR (Status)) {
+    return Status;
+  }
+
+  //
+  //setup clock
+  //
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_CLKEN0, PERIPH_CLKEN0_USBOTG);
+  do {
+       Value = MmioRead32 (PERI_CTRL_BASE + SC_PERIPH_CLKSTAT0);
+  } while ((Value & PERIPH_CLKEN0_USBOTG) == 0);
+
+  //
+  //setup phy
+  //
+  Data = RST0_USBOTG_BUS | RST0_POR_PICOPHY |
+           RST0_USBOTG | RST0_USBOTG_32K;
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_RSTDIS0, Data);
+  do {
+    Value = MmioRead32 (PERI_CTRL_BASE + SC_PERIPH_RSTSTAT0);
+    Value &= Data;
+  } while (Value);
+
+  Value = MmioRead32 (PERI_CTRL_BASE + SC_PERIPH_CTRL4);
+  Value &= ~(CTRL4_PICO_SIDDQ | CTRL4_FPGA_EXT_PHY_SEL |
+             CTRL4_OTG_PHY_SEL);
+  Value |=  CTRL4_PICO_VBUSVLDEXT | CTRL4_PICO_VBUSVLDEXTSEL;
+  MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_CTRL4, Value);
+
+  if (HiKeyGetUsbMode () != Mode) {
+    return EFI_INVALID_PARAMETER;
+  }
+  //
+  // If Mode = 1, USB in Device Mode
+  // If Mode = 0, USB in Host Mode
+  //
+  if (Mode == USB_DEVICE_MODE) {
+    DEBUG ((DEBUG_INFO, "usb work as device mode.\n"));
+
+    Value = MmioRead32 (PERI_CTRL_BASE + SC_PERIPH_CTRL5);
+    Value &= ~CTRL5_PICOPHY_BC_MODE;
+    MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_CTRL5, Value);
+    /* wait for stable */
+    MicroSecondDelay (20000);
+  } else {
+    DEBUG ((DEBUG_INFO, "usb work as host mode.\n"));
+
+    /* CTRL5 */
+    Data = MmioRead32 (PERI_CTRL_BASE + SC_PERIPH_CTRL5);
+    Data &= ~CTRL5_PICOPHY_BC_MODE;
+    Data |= CTRL5_USBOTG_RES_SEL | CTRL5_PICOPHY_ACAENB |
+            CTRL5_PICOPHY_VDATDETENB | CTRL5_PICOPHY_DCDENB;
+    MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_CTRL5, Data);
+    /* wait for stable */
+    MicroSecondDelay (20000);
+    /*
+     * Set the USB phy timing with tuned value that shows an eye
+     * pattern on oscillator.
+     */
+    MmioWrite32 (PERI_CTRL_BASE + SC_PERIPH_CTRL8, USB_EYE_PATTERN);
+    /* wait for eye pattern effective */
+    MicroSecondDelay (5000);
+  }
+
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+HiKeyUsbGetLang (
+  OUT CHAR16            *Lang,
+  OUT UINT8             *Length
+  )
+{
+  if ((Lang == NULL) || (Length == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+  Lang[0] = LANG_EN;
+  *Length = sizeof (CHAR16);
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+HiKeyUsbGetManufacturer (
+  OUT CHAR16            *Manufacturer,
+  OUT UINT8             *Length
+  )
+{
+  CHAR16                 DataUnicode[] = L"96Boards";
+
+  if ((Manufacturer == NULL) || (Length == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+  StrCpy (Manufacturer, DataUnicode);
+  /* include '\0' for string */
+  *Length = (StrLen (DataUnicode) + 1) * sizeof (CHAR16);
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+HiKeyUsbGetProduct (
+  OUT CHAR16            *Product,
+  OUT UINT8             *Length
+  )
+{
+  CHAR16                 DataUnicode[] = L"HiKey";
+
+  if ((Product == NULL) || (Length == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+  StrCpy (Product, DataUnicode);
+  /* include '\0' for string */
+  *Length = (StrLen (DataUnicode) + 1) * sizeof (CHAR16);
+  return EFI_SUCCESS;
+}
+
+EFI_STATUS
+EFIAPI
+HiKeyUsbGetSerialNo (
+  OUT CHAR16            *SerialNo,
+  OUT UINT8             *Length
+  )
+{
+  CHAR16                 DataUnicode[] = L"0123456789abcdef";
+
+  if ((SerialNo == NULL) || (Length == NULL)) {
+    return EFI_INVALID_PARAMETER;
+  }
+  StrCpy (SerialNo, DataUnicode);
+  /* include '\0' for string */
+  *Length = (StrLen (DataUnicode) + 1) * sizeof (CHAR16);
+  return EFI_SUCCESS;
+}
+
+DW_USB_PROTOCOL mDwUsbDevice = {
+  HiKeyUsbGetLang,
+  HiKeyUsbGetManufacturer,
+  HiKeyUsbGetProduct,
+  HiKeyUsbGetSerialNo,
+  HiKeyUsbPhyInit
+};
+
+EFI_STATUS
+EFIAPI
+HiKeyUsbEntryPoint (
+  IN EFI_HANDLE                            ImageHandle,
+  IN EFI_SYSTEM_TABLE                      *SystemTable
+  )
+{
+  EFI_STATUS        Status;
+
+  Status = gBS->InstallProtocolInterface (
+                  &ImageHandle,
+                  &gDwUsbProtocolGuid,
+                  EFI_NATIVE_INTERFACE,
+                  &mDwUsbDevice
+                  );
+  return Status;
+}