diff options
Diffstat (limited to 'Platform/Intel/PurleyOpenBoardPkg/BoardMtOlympus/Library/BasePlatformHookLib/BasePlatformHookLib.c')
| -rw-r--r-- | Platform/Intel/PurleyOpenBoardPkg/BoardMtOlympus/Library/BasePlatformHookLib/BasePlatformHookLib.c | 300 |
1 files changed, 300 insertions, 0 deletions
diff --git a/Platform/Intel/PurleyOpenBoardPkg/BoardMtOlympus/Library/BasePlatformHookLib/BasePlatformHookLib.c b/Platform/Intel/PurleyOpenBoardPkg/BoardMtOlympus/Library/BasePlatformHookLib/BasePlatformHookLib.c new file mode 100644 index 0000000000..038fe7ad71 --- /dev/null +++ b/Platform/Intel/PurleyOpenBoardPkg/BoardMtOlympus/Library/BasePlatformHookLib/BasePlatformHookLib.c @@ -0,0 +1,300 @@ +/** @file
+
+Copyright (c) 2018, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials are licensed and made available under
+the terms and conditions of the BSD License that 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 <Base.h>
+#include <Library/IoLib.h>
+#include <Library/PcdLib.h>
+#include <Library/SerialPortLib.h>
+#include <Library/DebugLib.h>
+
+#define R_ICH_IOPORT_PCI_INDEX 0xCF8
+#define R_ICH_IOPORT_PCI_DATA 0xCFC
+#define R_ICH_LPC_IO_DEC 0x80
+
+#define PCI_DEVICE_NUMBER_ICH_LPC 31
+#define PCI_FUNCTION_NUMBER_ICH_LPC 0
+
+#define PCI_CF8_ADDR(Bus, Dev, Func, Off) \
+ (((Off) & 0xFF) | (((Func) & 0x07) << 8) | (((Dev) & 0x1F) << 11) | (((Bus) & 0xFF) << 16) | (1 << 31))
+#define ICH_LPC_CF8_ADDR(Offset) PCI_CF8_ADDR(0, PCI_DEVICE_NUMBER_ICH_LPC, PCI_FUNCTION_NUMBER_ICH_LPC, Offset)
+
+#include "SioRegs.h"
+
+#include <Platform.h>
+#include <PchAccess.h>
+
+//
+// ---------------------------------------------
+// UART Register Offsets
+// ---------------------------------------------
+//
+#define BAUD_LOW_OFFSET 0x00
+#define BAUD_HIGH_OFFSET 0x01
+#define IER_OFFSET 0x01
+#define LCR_SHADOW_OFFSET 0x01
+#define FCR_SHADOW_OFFSET 0x02
+#define IR_CONTROL_OFFSET 0x02
+#define FCR_OFFSET 0x02
+#define EIR_OFFSET 0x02
+#define BSR_OFFSET 0x03
+#define LCR_OFFSET 0x03
+#define MCR_OFFSET 0x04
+#define LSR_OFFSET 0x05
+#define MSR_OFFSET 0x06
+
+//
+// ---------------------------------------------
+// UART Register Bit Defines
+// ---------------------------------------------
+//
+#define LSR_TXRDY 0x20
+#define LSR_RXDA 0x01
+#define DLAB 0x01
+
+#define UART_DATA 8
+#define UART_STOP 1
+#define UART_PARITY 0
+#define UART_BREAK_SET 0
+
+UINT16 gComBase = 0x3f8;
+UINTN gBps = 115200;
+UINT8 gData = 8;
+UINT8 gStop = 1;
+UINT8 gParity = 0;
+UINT8 gBreakSet = 0;
+
+
+/**
+
+ Read AHB register.
+
+ @param RegIndex: register index.
+
+ @retval value of register.
+
+**/
+UINT32
+ReadAHBDword(
+ UINT32 RegIndex
+){
+ UINT8 bValue;
+ UINT32 rdValue = 0;
+
+ IoWrite8 (SIO_INDEX_PORT, REG_LOGICAL_DEVICE);
+ IoWrite8 (0xED, 0);//short delay.
+ IoWrite8 (SIO_DATA_PORT, SIO_SMI);
+ IoWrite8 (0xED, 0);//short delay.
+
+ IoWrite8 (SIO_INDEX_PORT, 0x30);
+ IoWrite8 (0xED, 0);//short delay.
+ IoWrite8 (SIO_DATA_PORT, 1);
+ IoWrite8 (0xED, 0);//short delay.
+
+ IoWrite8 (SIO_INDEX_PORT, 0xf8);
+ bValue = IoRead8(SIO_DATA_PORT);
+ bValue &= 0xfc;
+ bValue |= 2; // 4 byte window.
+ IoWrite8 (SIO_DATA_PORT, bValue);
+ IoWrite8 (0xED, 0);//short delay.
+
+ IoWrite8 (SIO_INDEX_PORT, 0xf0);
+ IoWrite8 (0xED, 0);//short delay.
+ IoWrite8 (SIO_DATA_PORT, (UINT8)((RegIndex >> 24)& 0xff));
+
+ IoWrite8 (SIO_INDEX_PORT, 0xf1);
+ IoWrite8 (0xED, 0);//short delay.
+ IoWrite8 (SIO_DATA_PORT, (UINT8)((RegIndex >> 16)& 0xff));
+
+ IoWrite8 (SIO_INDEX_PORT, 0xf2);
+ IoWrite8 (0xED, 0);//short delay.
+ IoWrite8 (SIO_DATA_PORT, (UINT8)((RegIndex >> 8) & 0xff));
+
+ IoWrite8 (SIO_INDEX_PORT, 0xf3);
+ IoWrite8 (0xED, 0);//short delay.
+ IoWrite8 (SIO_DATA_PORT, (UINT8)((RegIndex )& 0xff));
+
+ // trigger read
+ IoWrite8 (SIO_INDEX_PORT, 0xfe);
+ IoRead8 (SIO_DATA_PORT);
+
+
+ IoWrite8 (SIO_INDEX_PORT, 0xf4);
+ rdValue += IoRead8 (SIO_DATA_PORT);
+ rdValue <<= 8;
+
+ IoWrite8 (SIO_INDEX_PORT, 0xf5);
+ rdValue += IoRead8 (SIO_DATA_PORT);
+ rdValue <<= 8;
+
+ IoWrite8 (SIO_INDEX_PORT, 0xf6);
+ rdValue += IoRead8 (SIO_DATA_PORT);
+ rdValue <<= 8;
+
+ IoWrite8 (SIO_INDEX_PORT, 0xf7);
+ rdValue += IoRead8 (SIO_DATA_PORT);
+
+
+ return rdValue;
+
+}
+
+
+/**
+
+ GC_TODO: add routine description
+
+ @param Exist - GC_TODO: add arg description
+
+ @retval RETURN_SUCCESS - GC_TODO: add retval description
+
+**/
+UINT32
+IsSioExist (
+ VOID
+)
+{
+ UINT32 SioExit;
+ UINT32 DeviceID;
+
+ SioExit = 0;
+
+ IoWrite8 (SIO_INDEX_PORT, SIO_UNLOCK);
+ IoWrite8 (SIO_INDEX_PORT, SIO_UNLOCK);
+
+ IoWrite8 (SIO_INDEX_PORT, REG_LOGICAL_DEVICE);
+ IoWrite8 (SIO_DATA_PORT, SIO_UART1);
+
+ if(IoRead8(SIO_DATA_PORT) == SIO_UART1){
+ DeviceID=0;
+ SioExit |= EXIST;
+ }
+
+ IoWrite8 (SIO_INDEX_PORT, SIO_LOCK);
+
+ return SioExit;
+}
+
+/**
+
+ GC_TODO: add routine description
+
+ @param None
+
+ @retval None
+
+**/
+VOID
+InitializeSio (
+ VOID
+ )
+{
+
+ UINT32 SioExist;
+ UINT32 SioEnable;
+ UINT32 Decode;
+ UINT32 Enable;
+
+ //
+ // Enable LPC decode
+ // Set COMA/COMB base
+ //
+
+ Decode = ((V_PCH_LPC_IOD_COMA_3F8 << N_PCH_LPC_IOD_COMA) | (V_PCH_LPC_IOD_COMB_2F8 << N_PCH_LPC_IOD_COMB));
+ Enable = ( B_PCH_LPC_IOE_ME2 | B_PCH_LPC_IOE_SE | B_PCH_LPC_IOE_ME1 \
+ | B_PCH_LPC_IOE_KE | B_PCH_LPC_IOE_CBE | B_PCH_LPC_IOE_CAE);
+ IoWrite32 (R_ICH_IOPORT_PCI_INDEX, (UINT32) (ICH_LPC_CF8_ADDR (R_ICH_LPC_IO_DEC)));
+
+ IoWrite32 (R_ICH_IOPORT_PCI_DATA, Decode | (Enable << 16));
+
+ MmioWrite16 (PCH_PCR_ADDRESS(PID_DMI, R_PCH_PCR_DMI_LPCIOD), (UINT16)Decode);
+ MmioWrite16 (PCH_PCR_ADDRESS(PID_DMI, R_PCH_PCR_DMI_LPCIOE), (UINT16)Enable);
+ SioExist = IsSioExist ();
+ SioEnable = SioExist;
+
+ if (SioEnable == EXIST) {
+ IoWrite8 (SIO_INDEX_PORT, SIO_UNLOCK);
+ IoWrite8 (SIO_INDEX_PORT, SIO_UNLOCK);
+
+ //
+ //COM1
+ //
+ IoWrite8 (SIO_INDEX_PORT, REG_LOGICAL_DEVICE);
+ IoWrite8 (SIO_DATA_PORT, SIO_UART1);
+
+ //
+ //active COM1
+ //
+ IoWrite8 (SIO_INDEX_PORT, ACTIVATE);
+ IoWrite8 (SIO_DATA_PORT, 1);
+
+ IoWrite8 (SIO_INDEX_PORT, SIO_LOCK);
+
+ }
+}
+
+/**
+ Performs platform specific initialization required for the CPU to access
+ the hardware associated with a SerialPortLib instance. This function does
+ not initialize the serial port hardware itself. Instead, it initializes
+ hardware devices that are required for the CPU to access the serial port
+ hardware. This function may be called more than once.
+
+ @retval RETURN_SUCCESS The platform specific initialization succeeded.
+ @retval RETURN_DEVICE_ERROR The platform specific initialization could not be completed.
+
+**/
+RETURN_STATUS
+EFIAPI
+PlatformHookSerialPortInitialize (
+ VOID
+ )
+{
+ UINTN Divisor;
+ UINT8 OutputData;
+ UINT8 Data;
+
+ InitializeSio();
+ //
+ // Some init is done by the platform status code initialization.
+ //
+ //
+ // Map 5..8 to 0..3
+ //
+ Data = (UINT8) (gData - (UINT8) 5);
+
+ //
+ // Calculate divisor for baud generator
+ //
+ Divisor = 115200 / gBps;
+
+ //
+ // Set communications format
+ //
+ OutputData = (UINT8) ((DLAB << 7) | ((gBreakSet << 6) | ((gParity << 3) | ((gStop << 2) | Data))));
+ IoWrite8 (gComBase + LCR_OFFSET, OutputData);
+
+ //
+ // Configure baud rate
+ //
+ IoWrite8 (gComBase + BAUD_HIGH_OFFSET, (UINT8) (Divisor >> 8));
+ IoWrite8 (gComBase + BAUD_LOW_OFFSET, (UINT8) (Divisor & 0xff));
+
+ //
+ // Switch back to bank 0
+ //
+ OutputData = (UINT8) ((~DLAB << 7) | ((gBreakSet << 6) | ((gParity << 3) | ((gStop << 2) | Data))));
+ IoWrite8 (gComBase + LCR_OFFSET, OutputData);
+
+ return RETURN_SUCCESS;
+}
+
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