Introduce new callback that can provide information
about I2C controllers to the I2c driver.
Extend ArmadaBoardDescLib with new structure MV_BOARD_I2C_DESC,
for holding board specific data. In further steps it should
be extended and replace PCD I2C devices' representation with the
appropriate structures.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marcin Wojtas <m...@semihalf.com>
---
Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.inf | 1 +
Silicon/Marvell/Include/Library/ArmadaBoardDescLib.h | 8 +++
Silicon/Marvell/Include/Protocol/BoardDesc.h | 8 +++
Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c | 66 ++++++++++++++++++++
4 files changed, 83 insertions(+)
diff --git a/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.inf
b/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.inf
index dea99fd..41f72d6 100644
--- a/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.inf
+++ b/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.inf
@@ -58,6 +58,7 @@
[Pcd]
gMarvellTokenSpaceGuid.PcdComPhyDevices
+ gMarvellTokenSpaceGuid.PcdI2cControllersEnabled
gMarvellTokenSpaceGuid.PcdPciEAhci
gMarvellTokenSpaceGuid.PcdPciESdhci
gMarvellTokenSpaceGuid.PcdPciEXhci
diff --git a/Silicon/Marvell/Include/Library/ArmadaBoardDescLib.h
b/Silicon/Marvell/Include/Library/ArmadaBoardDescLib.h
index b11fa9d..ee8e06e 100644
--- a/Silicon/Marvell/Include/Library/ArmadaBoardDescLib.h
+++ b/Silicon/Marvell/Include/Library/ArmadaBoardDescLib.h
@@ -25,6 +25,14 @@ typedef struct {
} MV_BOARD_COMPHY_DESC;
//
+// I2C devices per-board description
+//
+typedef struct {
+ MV_SOC_I2C_DESC *SoC;
+ UINTN I2cDevCount;
+} MV_BOARD_I2C_DESC;
+
+//
// MDIO devices per-board description
//
typedef struct {
diff --git a/Silicon/Marvell/Include/Protocol/BoardDesc.h
b/Silicon/Marvell/Include/Protocol/BoardDesc.h
index 55297f5..1d57a16 100644
--- a/Silicon/Marvell/Include/Protocol/BoardDesc.h
+++ b/Silicon/Marvell/Include/Protocol/BoardDesc.h
@@ -50,6 +50,13 @@ EFI_STATUS
typedef
EFI_STATUS
+(EFIAPI *MV_BOARD_DESC_I2C_GET) (
+ IN MARVELL_BOARD_DESC_PROTOCOL *This,
+ IN OUT MV_BOARD_I2C_DESC **I2cDesc
+ );
+
+typedef
+EFI_STATUS
(EFIAPI *MV_BOARD_DESC_MDIO_GET) (
IN MARVELL_BOARD_DESC_PROTOCOL *This,
IN OUT MV_BOARD_MDIO_DESC **MdioDesc
@@ -99,6 +106,7 @@ VOID
struct _MARVELL_BOARD_DESC_PROTOCOL {
MV_BOARD_DESC_AHCI_GET BoardDescAhciGet;
MV_BOARD_DESC_COMPHY_GET BoardDescComPhyGet;
+ MV_BOARD_DESC_I2C_GET BoardDescI2cGet;
MV_BOARD_DESC_MDIO_GET BoardDescMdioGet;
MV_BOARD_DESC_PP2_GET BoardDescPp2Get;
MV_BOARD_DESC_SDMMC_GET BoardDescSdMmcGet;
diff --git a/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c
b/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c
index 5dfc559..39dc06c 100644
--- a/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c
+++ b/Silicon/Marvell/Drivers/BoardDesc/MvBoardDescDxe.c
@@ -100,6 +100,71 @@ MvBoardDescComPhyGet (
STATIC
EFI_STATUS
+MvBoardDescI2cGet (
+ IN MARVELL_BOARD_DESC_PROTOCOL *This,
+ IN OUT MV_BOARD_I2C_DESC **I2cDesc
+ )
+{
+ UINT8 *I2cDeviceEnabled;
+ UINTN I2cCount, I2cDeviceEnabledSize, I2cIndex, Index;
+ MV_BOARD_I2C_DESC *BoardDesc;
+ MV_SOC_I2C_DESC *SoCDesc;
+ EFI_STATUS Status;
+
+ /* Get SoC data about all available I2C controllers */
+ Status = ArmadaSoCDescI2cGet (&SoCDesc, &I2cCount);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ /*
+ * Obtain table with enabled I2C controllers
+ * which is represented as an array of UINT8 values
+ * (0x0 - disabled, 0x1 enabled).
+ */
+ I2cDeviceEnabled = PcdGetPtr (PcdI2cControllersEnabled);
+ if (I2cDeviceEnabled == NULL) {
+ /* No I2C on platform */
+ return EFI_SUCCESS;
+ }
+
+ I2cDeviceEnabledSize = PcdGetSize (PcdI2cControllersEnabled);
+
+ /* Check if PCD with I2C controllers is correctly defined */
+ if (I2cDeviceEnabledSize > I2cCount) {
+ DEBUG ((DEBUG_ERROR,
+ "%a: Wrong PcdI2cControllersEnabled format\n",
+ __FUNCTION__));
+ return EFI_INVALID_PARAMETER;
+ }
+
+ /* Allocate and fill board description */
+ BoardDesc = AllocateZeroPool (I2cDeviceEnabledSize * sizeof
(MV_BOARD_I2C_DESC));
+ if (BoardDesc == NULL) {
+ DEBUG ((DEBUG_ERROR, "%a: Cannot allocate memory\n", __FUNCTION__));
+ return EFI_OUT_OF_RESOURCES;
+ }
+
+ I2cIndex = 0;
+ for (Index = 0; Index < I2cDeviceEnabledSize; Index++) {
+ if (!I2cDeviceEnabled[Index]) {
+ DEBUG ((DEBUG_INFO, "%a: Skip I2c controller %d\n", __FUNCTION__,
Index));
+ continue;
+ }
+
+ BoardDesc[I2cIndex].SoC = &SoCDesc[Index];
+ I2cIndex++;
+ }
+
+ BoardDesc->I2cDevCount = I2cIndex;
+
+ *I2cDesc = BoardDesc;
+
+ return EFI_SUCCESS;
+}
+
+STATIC
+EFI_STATUS
MvBoardDescMdioGet (
IN MARVELL_BOARD_DESC_PROTOCOL *This,
IN OUT MV_BOARD_MDIO_DESC **MdioDesc
@@ -491,6 +556,7 @@ MvBoardDescInitProtocol (
{
BoardDescProtocol->BoardDescAhciGet = MvBoardDescAhciGet;
BoardDescProtocol->BoardDescComPhyGet = MvBoardDescComPhyGet;
+ BoardDescProtocol->BoardDescI2cGet = MvBoardDescI2cGet;
BoardDescProtocol->BoardDescMdioGet = MvBoardDescMdioGet;
BoardDescProtocol->BoardDescPp2Get = MvBoardDescPp2Get;
BoardDescProtocol->BoardDescSdMmcGet = MvBoardDescSdMmcGet;
--
2.7.4
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