src/mainboard/asrock/e350m1/BiosCallOuts.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <AGESA.h>
   4 #include <amdlib.h>
   5 #include <amdblocks/acpimmio.h>
   6 #include <northbridge/amd/agesa/BiosCallOuts.h>
   7 #include <SB800.h>
   8
   9 static AGESA_STATUS board_BeforeDramInit (UINT32 Func, UINTN Data, VOID *ConfigPtr);
  10
  11 const BIOS_CALLOUT_STRUCT BiosCallouts[] =
  12 {
  13         {AGESA_DO_RESET,                        agesa_Reset },
  14         {AGESA_READ_SPD,                        agesa_ReadSpd },
  15         {AGESA_READ_SPD_RECOVERY,               agesa_NoopUnsupported },
  16         {AGESA_RUNFUNC_ONAP,                    agesa_RunFuncOnAp },
  17         {AGESA_HOOKBEFORE_DQS_TRAINING,         agesa_NoopSuccess },
  18         {AGESA_HOOKBEFORE_DRAM_INIT,            board_BeforeDramInit },
  19         {AGESA_HOOKBEFORE_EXIT_SELF_REF,        agesa_NoopSuccess },
  20         {AGESA_GNB_PCIE_SLOT_RESET,             agesa_NoopUnsupported },
  21 };
  22 const int BiosCalloutsLen = ARRAY_SIZE(BiosCallouts);
  23
  24 /* Call the host environment interface to provide a user hook opportunity. */
  25 static AGESA_STATUS board_BeforeDramInit (UINT32 Func, UINTN Data, VOID *ConfigPtr)
  26 {
  27         AGESA_STATUS       Status;
  28         MEM_DATA_STRUCT    *MemData;
  29         UINT32             GpioMmioAddr;
  30         UINT8              Data8;
  31         UINT8              TempData8;
  32
  33         MemData = ConfigPtr;
  34
  35         Status = AGESA_SUCCESS;
  36         GpioMmioAddr = (uintptr_t)acpimmio_gpio_100;
  37
  38         Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
  39         Data8 &= ~BIT5;
  40         TempData8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
  41         TempData8 &= 0x03;
  42         TempData8 |= Data8;
  43         Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, TempData8);
  44
  45         Data8 |= BIT2+BIT3;
  46         Data8 &= ~BIT4;
  47         TempData8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
  48         TempData8 &= 0x23;
  49         TempData8 |= Data8;
  50         Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, TempData8);
  51         Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
  52         Data8 &= ~BIT5;
  53         TempData8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
  54         TempData8 &= 0x03;
  55         TempData8 |= Data8;
  56         Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, TempData8);
  57         Data8 |= BIT2+BIT3;
  58         Data8 &= ~BIT4;
  59         TempData8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
  60         TempData8 &= 0x23;
  61         TempData8 |= Data8;
  62         Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, TempData8);
  63
  64         /*
  65          * this seems to be just copy-pasted from the AMD reference boards and
  66          * needs some investigation
  67          */
  68         switch (MemData->ParameterListPtr->DDR3Voltage) {
  69         case VOLT1_35:
  70                 Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
  71                 Data8 &= ~(UINT8)BIT6;
  72                 Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8);
  73                 Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
  74                 Data8 |= (UINT8)BIT6;
  75                 Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
  76                 break;
  77         case VOLT1_25:
  78                 Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
  79                 Data8 &= ~(UINT8)BIT6;
  80                 Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8);
  81                 Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
  82                 Data8 &= ~(UINT8)BIT6;
  83                 Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
  84                 break;
  85         case VOLT1_5:
  86         default:
  87                 Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG178);
  88                 Data8 |= (UINT8)BIT6;
  89                 Write64Mem8(GpioMmioAddr+SB_GPIO_REG178, Data8);
  90                 Data8 = Read64Mem8(GpioMmioAddr+SB_GPIO_REG179);
  91                 Data8 &= ~(UINT8)BIT6;
  92                 Write64Mem8(GpioMmioAddr+SB_GPIO_REG179, Data8);
  93         }
  94         /* disable memory clear for boot time reduction */
  95         MemData->ParameterListPtr->EnableMemClr = FALSE;
  96         return Status;
  97 }