diff options
3 files changed, 217 insertions, 3 deletions
diff --git a/QuarkPlatformPkg/Platform/Pei/PlatformInit/CommonHeader.h b/QuarkPlatformPkg/Platform/Pei/PlatformInit/CommonHeader.h index 3630f347b6..98284958a4 100644 --- a/QuarkPlatformPkg/Platform/Pei/PlatformInit/CommonHeader.h +++ b/QuarkPlatformPkg/Platform/Pei/PlatformInit/CommonHeader.h @@ -3,7 +3,7 @@ Common header file shared by all source files. This file includes package header files, library classes and protocol, PPI & GUID definitions.
-Copyright (c) 2013 Intel Corporation.
+Copyright (c) 2013 - 2016 Intel Corporation.
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -78,6 +78,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include <Library/QNCAccessLib.h>
#include <Library/PlatformHelperLib.h>
#include <Library/PlatformPcieHelperLib.h>
+#include <Library/I2cLib.h>
#include <Register/Cpuid.h>
diff --git a/QuarkPlatformPkg/Platform/Pei/PlatformInit/PlatformEarlyInit.c b/QuarkPlatformPkg/Platform/Pei/PlatformInit/PlatformEarlyInit.c index 32ae3e0891..756cc4a7a3 100644 --- a/QuarkPlatformPkg/Platform/Pei/PlatformInit/PlatformEarlyInit.c +++ b/QuarkPlatformPkg/Platform/Pei/PlatformInit/PlatformEarlyInit.c @@ -6,7 +6,7 @@ This PEIM initialize platform for MRC, following action is performed, 4. Calls MRC to initialize memory and install a PPI notify to do post memory initialization.
This file contains the main entrypoint of the PEIM.
-Copyright (c) 2013 Intel Corporation.
+Copyright (c) 2013 - 2016 Intel Corporation.
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
@@ -193,6 +193,212 @@ SetLanControllerMacAddr ( }
/**
+ Initialize state of I2C GPIO expanders.
+
+ @param PlatformType Platform type for GPIO expander init.
+
+**/
+EFI_STATUS
+EarlyPlatformConfigGpioExpanders (
+ IN CONST EFI_PLATFORM_TYPE PlatformType
+ )
+{
+ EFI_STATUS Status;
+ EFI_I2C_DEVICE_ADDRESS I2CSlaveAddress;
+ UINTN Length;
+ UINTN ReadLength;
+ UINT8 Buffer[2];
+
+ //
+ // Configure GPIO expanders for Galileo Gen 2
+ // Route I2C pins to Arduino header
+ // Set all GPIO expander pins connected to the Reset Button as inputs
+ //
+ if (PlatformType == GalileoGen2) {
+ //
+ // Configure AMUX1_IN (EXP2.P1_4) as an output
+ //
+ PlatformPcal9555GpioSetDir (
+ GALILEO_GEN2_IOEXP2_7BIT_SLAVE_ADDR, // IO Expander 2.
+ 12, // P1-4.
+ FALSE // Configure as output
+ );
+
+ //
+ // Set AMUX1_IN(EXP2.P1_4) low to route I2C to Arduino Shield connector
+ //
+ PlatformPcal9555GpioSetLevel (
+ GALILEO_GEN2_IOEXP2_7BIT_SLAVE_ADDR, // IO Expander 2.
+ 12, // P1-4.
+ FALSE // Set pin low
+ );
+
+ //
+ // Configure Reset Button(EXP1.P1_7) as an input
+ //
+ PlatformPcal9555GpioSetDir (
+ GALILEO_GEN2_IOEXP1_7BIT_SLAVE_ADDR, // IO Expander 1.
+ 15, // P1-7.
+ TRUE
+ );
+
+ //
+ // Disable pullup on Reset Button(EXP1.P1_7)
+ //
+ PlatformPcal9555GpioDisablePull (
+ GALILEO_GEN2_IOEXP1_7BIT_SLAVE_ADDR, // IO Expander 1.
+ 15 // P1-7.
+ );
+
+ //
+ // Configure Reset Button(EXP2.P1_7) as an input
+ //
+ PlatformPcal9555GpioSetDir (
+ GALILEO_GEN2_IOEXP2_7BIT_SLAVE_ADDR, // IO Expander 2.
+ 15, // P1-7.
+ TRUE
+ );
+
+ //
+ // Disable pullup on Reset Button(EXP2.P1_7)
+ //
+ PlatformPcal9555GpioDisablePull (
+ GALILEO_GEN2_IOEXP2_7BIT_SLAVE_ADDR, // IO Expander 2.
+ 15 // P1-7.
+ );
+ }
+
+ //
+ // Configure GPIO expanders for Galileo Gen 2
+ // Set all GPIO expander pins connected to the Reset Button as inputs
+ // Route I2C pins to Arduino header
+ //
+ if (PlatformType == Galileo) {
+ //
+ // Detect the I2C Slave Address of the GPIO Expander
+ //
+ if (PlatformLegacyGpioGetLevel (R_QNC_GPIO_RGLVL_RESUME_WELL, GALILEO_DETERMINE_IOEXP_SLA_RESUMEWELL_GPIO)) {
+ I2CSlaveAddress.I2CDeviceAddress = GALILEO_IOEXP_J2HI_7BIT_SLAVE_ADDR;
+ } else {
+ I2CSlaveAddress.I2CDeviceAddress = GALILEO_IOEXP_J2LO_7BIT_SLAVE_ADDR;
+ }
+ DEBUG ((EFI_D_INFO, "Galileo GPIO Expender Slave Address = %02x\n", I2CSlaveAddress.I2CDeviceAddress));
+
+ //
+ // Set I2C_MUX (GPORT1_BIT5) low to route I2C to Arduino Shield connector
+ //
+
+ //
+ // Select GPIO Expander GPORT1
+ //
+ Length = 2;
+ Buffer[0] = 0x18; //sub-address
+ Buffer[1] = 0x01; //data
+ Status = I2cWriteMultipleByte (
+ I2CSlaveAddress,
+ EfiI2CSevenBitAddrMode,
+ &Length,
+ &Buffer
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Read "Pin Direction" of GPIO Expander GPORT1
+ //
+ Length = 1;
+ ReadLength = 1;
+ Buffer[1] = 0x1C;
+ Status = I2cReadMultipleByte (
+ I2CSlaveAddress,
+ EfiI2CSevenBitAddrMode,
+ &Length,
+ &ReadLength,
+ &Buffer[1]
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Configure GPIO Expander GPORT1_BIT5 as an output
+ //
+ Length = 2;
+ Buffer[0] = 0x1C; //sub-address
+ Buffer[1] = (UINT8)(Buffer[1] & (~BIT5)); //data
+
+ Status = I2cWriteMultipleByte (
+ I2CSlaveAddress,
+ EfiI2CSevenBitAddrMode,
+ &Length,
+ &Buffer
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Set GPIO Expander GPORT1_BIT5 low
+ //
+ Length = 2;
+ Buffer[0] = 0x09; //sub-address
+ Buffer[1] = (UINT8)(~BIT5); //data
+
+ Status = I2cWriteMultipleByte (
+ I2CSlaveAddress,
+ EfiI2CSevenBitAddrMode,
+ &Length,
+ &Buffer
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Configure RESET_N_SHLD (GPORT5_BIT0) and SW_RESET_N_SHLD (GPORT5_BIT1) as inputs
+ //
+
+ //
+ // Select GPIO Expander GPORT5
+ //
+ Length = 2;
+ Buffer[0] = 0x18;
+ Buffer[1] = 0x05;
+ Status = I2cWriteMultipleByte (
+ I2CSlaveAddress,
+ EfiI2CSevenBitAddrMode,
+ &Length,
+ &Buffer
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Read "Pin Direction" of GPIO Expander GPORT5
+ //
+ Length = 1;
+ ReadLength = 1;
+ Buffer[1] = 0x1C;
+ Status = I2cReadMultipleByte (
+ I2CSlaveAddress,
+ EfiI2CSevenBitAddrMode,
+ &Length,
+ &ReadLength,
+ &Buffer[1]
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Configure GPIO Expander GPORT5_BIT0 and GPORT5_BIT1 as inputs
+ //
+ Length = 2;
+ Buffer[0] = 0x1C;
+ Buffer[1] = Buffer[1] | BIT0 | BIT1;
+ Status = I2cWriteMultipleByte (
+ I2CSlaveAddress,
+ EfiI2CSevenBitAddrMode,
+ &Length,
+ &Buffer
+ );
+ ASSERT_EFI_ERROR (Status);
+ }
+
+ return EFI_SUCCESS;
+}
+
+/**
This is the entrypoint of PEIM
@param FileHandle Handle of the file being invoked.
@@ -305,6 +511,12 @@ PeiInitPlatform ( PlatformErratasPostMrc ();
//
+ //
+ //
+ DEBUG ((EFI_D_INFO, "EarlyPlatformConfigGpioExpanders ()\n"));
+ EarlyPlatformConfigGpioExpanders (PlatformType);
+
+ //
// Now that all of the pre-permanent memory activities have
// been taken care of, post a call-back for the permanent-memory
// resident services, such as HOB construction.
diff --git a/QuarkPlatformPkg/Platform/Pei/PlatformInit/PlatformEarlyInit.inf b/QuarkPlatformPkg/Platform/Pei/PlatformInit/PlatformEarlyInit.inf index dd373defdb..1de8efd33e 100644 --- a/QuarkPlatformPkg/Platform/Pei/PlatformInit/PlatformEarlyInit.inf +++ b/QuarkPlatformPkg/Platform/Pei/PlatformInit/PlatformEarlyInit.inf @@ -36,7 +36,7 @@ # memory specific stuff like build memory map, build
# resource description hob for DXE phase,etc.
# Bootmode.c - Detect boot mode.
-# Copyright (c) 2013 Intel Corporation.
+# Copyright (c) 2013 - 2016 Intel Corporation.
#
# This program and the accompanying materials
# are licensed and made available under the terms and conditions of the BSD License
@@ -110,6 +110,7 @@ QNCAccessLib
PlatformHelperLib
PlatformPcieHelperLib
+ I2cLib
[Guids]
gEfiMemoryConfigDataGuid # ALWAYS_CONSUMED L"MemoryConfig"
|