diff options
Diffstat (limited to 'src/mainboard/amd/dinar/BiosCallOuts.c')
| -rw-r--r-- | src/mainboard/amd/dinar/BiosCallOuts.c | 62 |
1 files changed, 61 insertions, 1 deletions
diff --git a/src/mainboard/amd/dinar/BiosCallOuts.c b/src/mainboard/amd/dinar/BiosCallOuts.c index a1c89dfc82..4fb3c66d59 100644 --- a/src/mainboard/amd/dinar/BiosCallOuts.c +++ b/src/mainboard/amd/dinar/BiosCallOuts.c @@ -24,6 +24,8 @@ #include "OptionsIds.h" #include "heapManager.h" #include "SB700.h" +#include <northbridge/amd/agesa/family15/dimmSpd.h> +#include "OEM.h" /* SMBUS0_BASE_ADDRESS */ #ifndef SB_GPIO_REG01 #define SB_GPIO_REG01 1 @@ -37,6 +39,53 @@ #define SB_GPIO_REG27 27 #endif +#ifdef __PRE_RAM__ +/* This define is used when selecting the appropriate socket for the SPD read + * because this is a multi-socket design. + */ +#define LTC4305_SMBUS_ADDR (0x94) + +static void select_socket(UINT8 socket_id) +{ + AMD_CONFIG_PARAMS StdHeader; + UINT32 PciData32; + UINT8 PciData8; + PCI_ADDR PciAddress; + + /* Set SMBus MMIO. */ + PciAddress.AddressValue = MAKE_SBDFO (0, 0, 20, 0, 0x90); + PciData32 = (SMBUS0_BASE_ADDRESS & 0xFFFFFFF0) | BIT0; + LibAmdPciWrite(AccessWidth32, PciAddress, &PciData32, &StdHeader); + + /* Enable SMBus MMIO. */ + PciAddress.AddressValue = MAKE_SBDFO (0, 0, 20, 0, 0xD2); + LibAmdPciRead(AccessWidth8, PciAddress, &PciData8, &StdHeader); ; + PciData8 |= BIT0; + LibAmdPciWrite(AccessWidth8, PciAddress, &PciData8, &StdHeader); + + switch (socket_id) { + case 0: + /* Switch onto the First CPU Socket SMBus */ + writeSmbusByte(SMBUS0_BASE_ADDRESS, LTC4305_SMBUS_ADDR, 0x80, 0x03); + break; + case 1: + /* Switch onto the Second CPU Socket SMBus */ + writeSmbusByte(SMBUS0_BASE_ADDRESS, LTC4305_SMBUS_ADDR, 0x40, 0x03); + break; + default: + /* Switch off two CPU Sockets SMBus */ + writeSmbusByte(SMBUS0_BASE_ADDRESS, LTC4305_SMBUS_ADDR, 0x00, 0x03); + break; + } +} + +static void restore_socket(void) +{ + /* Switch off two CPU Sockets SMBus */ + writeSmbusByte(SMBUS0_BASE_ADDRESS, LTC4305_SMBUS_ADDR, 0x00, 0x03); +} +#endif + STATIC BIOS_CALLOUT_STRUCT BiosCallouts[] = { {AGESA_ALLOCATE_BUFFER, @@ -500,7 +549,18 @@ AGESA_STATUS BiosReset (UINT32 Func, UINT32 Data, VOID *ConfigPtr) AGESA_STATUS BiosReadSpd (UINT32 Func, UINT32 Data, VOID *ConfigPtr) { AGESA_STATUS Status; - Status = AmdMemoryReadSPD (Func, Data, (AGESA_READ_SPD_PARAMS *)ConfigPtr); +#ifdef __PRE_RAM__ + if (ConfigPtr == NULL) + return AGESA_ERROR; + + select_socket(((AGESA_READ_SPD_PARAMS *)ConfigPtr)->SocketId); + + Status = agesa_ReadSPD (Func, Data, ConfigPtr); + + restore_socket(); +#else + Status = AGESA_UNSUPPORTED; +#endif return Status; } |