diff options
Diffstat (limited to 'src/mainboard/amd/persimmon/BiosCallOuts.c')
-rw-r--r-- | src/mainboard/amd/persimmon/BiosCallOuts.c | 82 |
1 files changed, 4 insertions, 78 deletions
diff --git a/src/mainboard/amd/persimmon/BiosCallOuts.c b/src/mainboard/amd/persimmon/BiosCallOuts.c index 0711d96f17..4db6e753ee 100644 --- a/src/mainboard/amd/persimmon/BiosCallOuts.c +++ b/src/mainboard/amd/persimmon/BiosCallOuts.c @@ -445,84 +445,10 @@ AGESA_STATUS BiosHookBeforeDQSTraining (UINT32 Func, UINT32 Data, VOID *ConfigPt /* Call the host environment interface to provide a user hook opportunity. */ AGESA_STATUS BiosHookBeforeDramInit (UINT32 Func, UINT32 Data, VOID *ConfigPtr) { - AGESA_STATUS Status; - UINTN FcnData; - MEM_DATA_STRUCT *MemData; - UINT32 AcpiMmioAddr; - UINT32 GpioMmioAddr; - UINT8 Data8; - UINT16 Data16; - UINT8 TempData8; - - FcnData = Data; - MemData = ConfigPtr; - - Status = AGESA_SUCCESS; - /* Get SB MMIO Base (AcpiMmioAddr) */ - WriteIo8 (0xCD6, 0x27); - Data8 = ReadIo8(0xCD7); - Data16 = Data8<<8; - WriteIo8 (0xCD6, 0x26); - Data8 = ReadIo8(0xCD7); - Data16 |= Data8; - AcpiMmioAddr = (UINT32)Data16 << 16; - GpioMmioAddr = AcpiMmioAddr + GPIO_BASE; - - Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178); - Data8 &= ~BIT5; - TempData8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178); - TempData8 &= 0x03; - TempData8 |= Data8; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, TempData8); - - Data8 |= BIT2+BIT3; - Data8 &= ~BIT4; - TempData8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178); - TempData8 &= 0x23; - TempData8 |= Data8; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, TempData8); - - Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179); - Data8 &= ~BIT5; - TempData8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179); - TempData8 &= 0x03; - TempData8 |= Data8; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, TempData8); - - Data8 |= BIT2+BIT3; - Data8 &= ~BIT4; - TempData8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179); - TempData8 &= 0x23; - TempData8 |= Data8; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, TempData8); - - switch(MemData->ParameterListPtr->DDR3Voltage){ - case VOLT1_35: - Data8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178); - Data8 &= ~(UINT8)BIT6; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8); - Data8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179); - Data8 |= (UINT8)BIT6; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8); - break; - case VOLT1_25: - Data8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178); - Data8 &= ~(UINT8)BIT6; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8); - Data8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179); - Data8 &= ~(UINT8)BIT6; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8); - break; - case VOLT1_5: - default: - Data8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG178); - Data8 |= (UINT8)BIT6; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8); - Data8 = Read64Mem8 (GpioMmioAddr+SB_GPIO_REG179); - Data8 &= ~(UINT8)BIT6; - Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8); - } - return Status; + // Unlike e.g. AMD Inagua, Persimmon is unable to vary the RAM voltage. + // Make sure the right speed settings are selected. + ((MEM_DATA_STRUCT*)ConfigPtr)->ParameterListPtr->DDR3Voltage = VOLT1_5; + return AGESA_SUCCESS; } /* Call the host environment interface to provide a user hook opportunity. */ |