[platforms: PATCH v2 04/12] Marvell/Armada70x0Db: Extend board description library with GPIO

[Marcin Wojtas <mw@semihalf.com>]

This patch implements ArmadaBoarDescLib library for
Armada70x0Db comunity board and introduces ArmadaBoardGpioGet
routine with per-board GPIO expander description.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
---
 Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.inf |  1 +
 Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.c   | 25 ++++++++++++++++++++
 2 files changed, 26 insertions(+)

diff --git a/Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.inf b/Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.inf
index b26f55b..c995515 100644
--- a/Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.inf
+++ b/Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.inf
@@ -25,6 +25,7 @@
   Armada70x0DbBoardDescLib.c
 
 [Packages]
+  EmbeddedPkg/EmbeddedPkg.dec
   MdeModulePkg/MdeModulePkg.dec
   MdePkg/MdePkg.dec
   Silicon/Marvell/Marvell.dec
diff --git a/Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.c b/Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.c
index 48c68e4..f63d8fd 100644
--- a/Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.c
+++ b/Platform/Marvell/Armada70x0Db/Armada70x0DbBoardDescLib/Armada70x0DbBoardDescLib.c
@@ -21,6 +21,31 @@
 #include <Library/MemoryAllocationLib.h>
 #include <Library/UefiBootServicesTableLib.h>
 
+#include <Protocol/MvGpio.h>
+
+//
+// GPIO Expander
+//
+STATIC MV_GPIO_EXPANDER mGpioExpander = {
+  8, /* PCA9555 */
+  0x21,
+  0x0,
+};
+
+
+EFI_STATUS
+EFIAPI
+ArmadaBoardGpioExpanderGet (
+  IN OUT MV_GPIO_EXPANDER **GpioExpanders,
+  IN OUT UINTN             *GpioExpanderCount
+  )
+{
+  *GpioExpanderCount = 1;
+  *GpioExpanders = &mGpioExpander;
+
+  return EFI_SUCCESS;
+}
+
 //
 // Order of devices in SdMmcDescTemplate has to be in par with ArmadaSoCDescLib
 //
-- 
2.7.4