[PATCH edk2-platforms v4 4/6] Platform/Hisilicon/HiKey: add gpio platform driver

[Haojian Zhuang <haojian.zhuang@linaro.org>]

Add gpio platform driver to enable GPIO in HiKey platform.

Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
---
 .../Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.c    | 74 ++++++++++++++++++++++
 .../Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.inf  | 36 +++++++++++
 2 files changed, 110 insertions(+)
 create mode 100644 Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.c
 create mode 100644 Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.inf

diff --git a/Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.c b/Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.c
new file mode 100644
index 000000000000..be535f8f1903
--- /dev/null
+++ b/Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.c
@@ -0,0 +1,74 @@
+/** @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/UefiBootServicesTableLib.h>
+
+#include <Protocol/EmbeddedGpio.h>
+
+GPIO_CONTROLLER gGpioDevice[] = {
+  //
+  // { base address, gpio index, gpio count }
+  //
+  { 0xf8011000, 0, 8 },    // GPIO0
+  { 0xf8012000, 8, 8 },    // GPIO1
+  { 0xf8013000, 16, 8 },   // GPIO2
+  { 0xf8014000, 24, 8 },   // GPIO3
+  { 0xf7020000, 32, 8 },   // GPIO4
+  { 0xf7021000, 40, 8 },   // GPIO5
+  { 0xf7022000, 48, 8 },   // GPIO6
+  { 0xf7023000, 56, 8 },   // GPIO7
+  { 0xf7024000, 64, 8 },   // GPIO8
+  { 0xf7025000, 72, 8 },   // GPIO9
+  { 0xf7026000, 80, 8 },   // GPIO10
+  { 0xf7027000, 88, 8 },   // GPIO11
+  { 0xf7028000, 96, 8 },   // GPIO12
+  { 0xf7029000, 104, 8 },  // GPIO13
+  { 0xf702a000, 112, 8 },  // GPIO14
+  { 0xf702b000, 120, 8 },  // GPIO15
+  { 0xf702c000, 128, 8 },  // GPIO16
+  { 0xf702d000, 136, 8 },  // GPIO17
+  { 0xf702e000, 144, 8 },  // GPIO18
+  { 0xf702f000, 152, 8 }   // GPIO19
+};
+
+PLATFORM_GPIO_CONTROLLER gPlatformGpioDevice = {
+  //
+  // { global gpio count, gpio controller counter, GPIO_CONTROLLER }
+  //
+  160, 20, gGpioDevice
+};
+
+EFI_STATUS
+EFIAPI
+HiKeyGpioEntryPoint (
+  IN EFI_HANDLE         ImageHandle,
+  IN EFI_SYSTEM_TABLE   *SystemTable
+  )
+{
+  EFI_STATUS  Status;
+  EFI_HANDLE  Handle;
+
+  // Install the Embedded Platform GPIO Protocol onto a new handle
+  Handle = NULL;
+  Status = gBS->InstallMultipleProtocolInterfaces(
+                  &Handle,
+                  &gPlatformGpioProtocolGuid, &gPlatformGpioDevice,
+                  NULL
+                 );
+  if (EFI_ERROR(Status)) {
+    Status = EFI_OUT_OF_RESOURCES;
+  }
+
+  return Status;
+}
diff --git a/Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.inf b/Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.inf
new file mode 100644
index 000000000000..2791b9f44cad
--- /dev/null
+++ b/Platform/Hisilicon/HiKey/HiKeyGpioDxe/HiKeyGpioDxe.inf
@@ -0,0 +1,36 @@
+#
+#  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                    = 0x0001001a
+  BASE_NAME                      = HiKeyGpio
+  FILE_GUID                      = b51a851c-7bf7-463f-b261-cfb158b7f699
+  MODULE_TYPE                    = DXE_DRIVER
+  VERSION_STRING                 = 1.0
+  ENTRY_POINT                    = HiKeyGpioEntryPoint
+
+[Sources.common]
+  HiKeyGpioDxe.c
+
+[Packages]
+  EmbeddedPkg/EmbeddedPkg.dec
+  MdePkg/MdePkg.dec
+
+[LibraryClasses]
+  DebugLib
+  UefiDriverEntryPoint
+
+[Protocols]
+  gPlatformGpioProtocolGuid
+
+[Depex]
+  TRUE
-- 
2.7.4