src/mainboard/supermicro/h8qgi/BiosCallOuts.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2011 Advanced Micro Devices, Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include "AGESA.h"
  17 #include "amdlib.h"
  18 #include <northbridge/amd/agesa/agesawrapper.h>
  19 #include <northbridge/amd/agesa/BiosCallOuts.h>
  20 #include "Ids.h"
  21 #include "OptionsIds.h"
  22 #include "heapManager.h"
  23 #include <arch/io.h>
  24
  25 #ifdef __PRE_RAM__
  26 /* These defines are used to select the appropriate socket for the SPD read
  27  * because this is a multi-socket design.
  28  */
  29 #define PCI_REG_GPIO_56_to_53_CNTRL      (0x52)
  30 #define GPIO_OUT_BIT_GPIO53              (BIT0)
  31 #define GPIO_OUT_BIT_GPIO54              (BIT1)
  32 #define GPIO_OUT_ENABLE_BIT_GPIO53       (BIT4)
  33 #define GPIO_OUT_ENABLE_BIT_GPIO54       (BIT5)
  34
  35 #define GPIO_OUT_BIT_GPIO54_to_53_MASK \
  36         (GPIO_OUT_BIT_GPIO54 | GPIO_OUT_BIT_GPIO53)
  37 #define GPIO_OUT_ENABLE_BIT_GPIO54_to_53_MASK \
  38         (GPIO_OUT_ENABLE_BIT_GPIO54 | GPIO_OUT_ENABLE_BIT_GPIO53)
  39
  40 static UINT8 select_socket(UINT8 socket_id)
  41 {
  42         device_t sm_dev       = PCI_DEV(0, 0x14, 0); //SMBus
  43         UINT8    value        = 0;
  44         UINT8    gpio56_to_53 = 0;
  45
  46         /* Configure GPIO54,53 to select the desired socket
  47          * GPIO54,53 control the HC4052 S1,S0
  48          *  S1 S0 true table
  49          *   0  0   channel 1 (Socket1)
  50          *   0  1   channel 2 (Socket2)
  51          *   1  0   channel 3 (Socket3)
  52          *   1  1   channel 4 (Socket4)
  53          */
  54         gpio56_to_53 = pci_read_config8(sm_dev, PCI_REG_GPIO_56_to_53_CNTRL);
  55         value  = gpio56_to_53 & (~GPIO_OUT_BIT_GPIO54_to_53_MASK);
  56         value |= socket_id;
  57         value &= (~GPIO_OUT_ENABLE_BIT_GPIO54_to_53_MASK); // 0=Output Enabled, 1=Tristate
  58         pci_write_config8(sm_dev, PCI_REG_GPIO_56_to_53_CNTRL, value);
  59
  60         return gpio56_to_53;
  61 }
  62
  63 static void restore_socket(UINT8 original_value)
  64 {
  65         device_t sm_dev = PCI_DEV(0, 0x14, 0); //SMBus
  66         pci_write_config8(sm_dev, PCI_REG_GPIO_56_to_53_CNTRL, original_value);
  67 }
  68 #endif
  69
  70 static AGESA_STATUS board_ReadSpd (UINT32 Func, UINTN Data, VOID *ConfigPtr);
  71
  72 #include <stdlib.h>
  73 const BIOS_CALLOUT_STRUCT BiosCallouts[] =
  74 {
  75         {AGESA_DO_RESET,                        agesa_Reset },
  76         {AGESA_READ_SPD,                        board_ReadSpd },
  77         {AGESA_READ_SPD_RECOVERY,               agesa_NoopUnsupported },
  78         {AGESA_RUNFUNC_ONAP,                    agesa_RunFuncOnAp },
  79         {AGESA_GET_IDS_INIT_DATA,               agesa_EmptyIdsInitData },
  80         {AGESA_HOOKBEFORE_DQS_TRAINING,         agesa_NoopSuccess },
  81         {AGESA_HOOKBEFORE_DRAM_INIT,            agesa_NoopSuccess },
  82         {AGESA_HOOKBEFORE_EXIT_SELF_REF,        agesa_NoopSuccess },
  83 };
  84 const int BiosCalloutsLen = ARRAY_SIZE(BiosCallouts);
  85
  86 static AGESA_STATUS board_ReadSpd (UINT32 Func, UINTN Data, VOID *ConfigPtr)
  87 {
  88         AGESA_STATUS Status;
  89 #ifdef __PRE_RAM__
  90         UINT8 original_value = 0;
  91
  92         if (ConfigPtr == NULL)
  93                 return AGESA_ERROR;
  94
  95         original_value = select_socket(((AGESA_READ_SPD_PARAMS *)ConfigPtr)->SocketId);
  96
  97         Status = agesa_ReadSpd (Func, Data, ConfigPtr);
  98
  99         restore_socket(original_value);
 100 #else
 101         Status = AGESA_UNSUPPORTED;
 102 #endif
 103
 104         return Status;
 105 }
 106
 107 const struct OEM_HOOK OemCustomize = {
 108 };