diff options
Diffstat (limited to 'src/mainboard/amd/dinar/dimmSpd.c')
-rw-r--r-- | src/mainboard/amd/dinar/dimmSpd.c | 333 |
1 files changed, 0 insertions, 333 deletions
diff --git a/src/mainboard/amd/dinar/dimmSpd.c b/src/mainboard/amd/dinar/dimmSpd.c deleted file mode 100644 index 10b26c283c..0000000000 --- a/src/mainboard/amd/dinar/dimmSpd.c +++ /dev/null @@ -1,333 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 Advanced Micro Devices, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - - -/*---------------------------------------------------------------------------------------- - * M O D U L E S U S E D - *---------------------------------------------------------------------------------------- - */ - -#include "Porting.h" -#include "AGESA.h" -#include "amdlib.h" - -/*---------------------------------------------------------------------------------------- - * D E F I N I T I O N S A N D M A C R O S - *---------------------------------------------------------------------------------------- - */ -#define SMBUS_BASE_ADDR 0xB00 -#define DIMENSION(array)(sizeof (array)/ sizeof (array [0])) - -/*---------------------------------------------------------------------------------------- - * T Y P E D E F S A N D S T R U C T U R E S - *---------------------------------------------------------------------------------------- - */ -#define LTC4305_SMBUS_ADDR 0x94 - -typedef struct _DIMM_INFO_SMBUS{ - UINT8 SocketId; - UINT8 MemChannelId; - UINT8 DimmId; - UINT8 SmbusAddress; -} DIMM_INFO_SMBUS; -/* - * SPD address table - porting required - */ -STATIC CONST DIMM_INFO_SMBUS SpdAddrLookup [] = -{ - /* Socket, Channel, Dimm, Smbus */ - {0, 0, 0, 0xAC}, - {0, 0, 1, 0xAE}, - {0, 1, 0, 0xA8}, - {0, 1, 1, 0xAA}, - {0, 2, 0, 0xA4}, - {0, 2, 1, 0xA6}, - {0, 3, 0, 0xA0}, - {0, 3, 1, 0xA2}, - {1, 0, 0, 0xAC}, - {1, 0, 1, 0xAE}, - {1, 1, 0, 0xA8}, - {1, 1, 1, 0xAA}, - {1, 2, 0, 0xA4}, - {1, 2, 1, 0xA6}, - {1, 3, 0, 0xA0}, - {1, 3, 1, 0xA2} -}; - -/*---------------------------------------------------------------------------------------- - * P R O T O T Y P E S O F L O C A L F U N C T I O N S - *---------------------------------------------------------------------------------------- - */ - -AGESA_STATUS -AmdMemoryReadSPD ( - IN UINT32 Func, - IN UINT32 Data, - IN OUT AGESA_READ_SPD_PARAMS *SpdData - ); - -/*---------------------------------------------------------------------------------------- - * E X P O R T E D F U N C T I O N S - *---------------------------------------------------------------------------------------- - */ - - -/*--------------------------------------------------------------------------------------- - * L O C A L F U N C T I O N S - *--------------------------------------------------------------------------------------- - */ - -STATIC -VOID -WritePmReg ( - IN UINT8 Reg, - IN UINT8 Data - ) -{ - __outbyte (0xCD6, Reg); - __outbyte (0xCD7, Data); -} -STATIC -VOID -SetupFch ( - IN UINT16 - IN IoBase - ) -{ - - AMD_CONFIG_PARAMS StdHeader; - UINT32 PciData32; - UINT8 PciData8; - PCI_ADDR PciAddress; - - /* Set SMBUS MMIO. */ - PciAddress.AddressValue = MAKE_SBDFO (0, 0, 20, 0, 0x90); - PciData32 = (SMBUS_BASE_ADDR & 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); - /* set SMBus clock to 400 KHz */ - __outbyte (IoBase + 0x0E, 66000000 / 400000 / 4); -} - -/* - * - * ReadSmbusByteData - read a single SPD byte from any offset - * - */ - -STATIC -AGESA_STATUS -ReadSmbusByteData ( - IN UINT16 Iobase, - IN UINT8 Address, - OUT UINT8 *ByteData, - IN UINTN Offset - ) -{ - UINTN Status; - UINT64 Limit; - - Address |= 1; // set read bit - - __outbyte (Iobase + 0, 0xFF); // clear error status - __outbyte (Iobase + 1, 0x1F); // clear error status - __outbyte (Iobase + 3, Offset); // offset in eeprom - __outbyte (Iobase + 4, Address); // slave address and read bit - __outbyte (Iobase + 2, 0x48); // read byte command - - /* time limit to avoid hanging for unexpected error status (should never happen) */ - Limit = __rdtsc () + 2000000000 / 10; - for (;;) { - Status = __inbyte (Iobase); - if (__rdtsc () > Limit) break; - if ((Status & 2) == 0) continue; // SMBusInterrupt not set, keep waiting - if ((Status & 1) == 1) continue; // HostBusy set, keep waiting - break; - } - - *ByteData = __inbyte (Iobase + 5); - if (Status == 2) Status = 0; // check for done with no errors - return Status; -} -/* - * - * WriteSmbusByteData - Write a single SPD byte onto any offset - * - */ -STATIC -AGESA_STATUS -WriteSmbusByteData ( - IN UINT16 Iobase, - IN UINT8 Address, - IN UINT8 ByteData, - IN UINTN Offset - ) -{ - UINTN Status; - UINT64 Limit; - Address &= 0xFE; // set write bit - - __outbyte (Iobase + 0, 0xFF); // clear error status - __outbyte (Iobase + 1, 0x1F); // clear error status - __outbyte (Iobase + 3, Offset); // offset in eeprom - __outbyte (Iobase + 4, Address); // slave address and write bit - __outbyte (Iobase + 5, ByteData); // offset in byte data // - __outbyte (Iobase + 2, 0x48); // write byte command - /* time limit to avoid hanging for unexpected error status (should never happen) */ - Limit = __rdtsc () + 2000000000 / 10; - for (;;) { - Status = __inbyte (Iobase); - if (__rdtsc () > Limit) break; - if ((Status & 2) == 0) continue; // SMBusInterrupt not set, keep waiting - if ((Status & 1) == 1) continue; // HostBusy set, keep waiting - break; - } - if (Status == 2) Status = 0; // check for done with no errors - return Status; -} - -/* - * - * ReadSmbusByte - read a single SPD byte from the default offset - * this function is faster function readSmbusByteData - * - */ - -STATIC -AGESA_STATUS -ReadSmbusByte ( - IN UINT16 Iobase, - IN UINT8 Address, - OUT UINT8 *Buffer - ) -{ - UINTN Status; - UINT64 Limit; - - __outbyte (Iobase + 0, 0xFF); // clear error status - __outbyte (Iobase + 1, 0x1F); // clear error status - __outbyte (Iobase + 2, 0x44); // read command - - // time limit to avoid hanging for unexpected error status - Limit = __rdtsc () + 2000000000 / 10; - for (;;) { - Status = __inbyte (Iobase); - if (__rdtsc () > Limit) break; - if ((Status & 2) == 0) continue; // SMBusInterrupt not set, keep waiting - if ((Status & 1) == 1) continue; // HostBusy set, keep waiting - break; - } - - Buffer [0] = __inbyte (Iobase + 5); - if (Status == 2) Status = 0; // check for done with no errors - return Status; -} - -/* - * - * ReadSpd - Read one or more SPD bytes from a DIMM. - * Start with offset zero and read sequentially. - * Optimization relies on autoincrement to avoid - * sending offset for every byte. - * Reads 128 bytes in 7-8 ms at 400 KHz. - * - */ - -STATIC -AGESA_STATUS -ReadSpd ( - IN UINT16 IoBase, - IN UINT8 SmbusSlaveAddress, - OUT UINT8 *Buffer, - IN UINTN Count - ) -{ - UINTN Index, Status; - - /* read the first byte using offset zero */ - Status = ReadSmbusByteData (IoBase, SmbusSlaveAddress, Buffer, 0); - if (Status) return Status; - - /* read the remaining bytes using auto-increment for speed */ - for (Index = 1; Index < Count; Index++){ - Status = ReadSmbusByte (IoBase, SmbusSlaveAddress, &Buffer [Index]); - if (Status) return Status; - } - return 0; -} - -AGESA_STATUS -AmdMemoryReadSPD ( - IN UINT32 Func, - IN UINT32 Data, - IN OUT AGESA_READ_SPD_PARAMS *SpdData - ) -{ - AGESA_STATUS Status; - UINT8 SmBusAddress = 0; - UINTN Index; - UINTN MaxSocket = DIMENSION (SpdAddrLookup); - - for (Index = 0; Index < MaxSocket; Index ++){ - if ((SpdData->SocketId == SpdAddrLookup[Index].SocketId) && - (SpdData->MemChannelId == SpdAddrLookup[Index].MemChannelId) && - (SpdData->DimmId == SpdAddrLookup[Index].DimmId)) { - SmBusAddress = SpdAddrLookup[Index].SmbusAddress; - break; - } - } - - - if (SmBusAddress == 0) return AGESA_ERROR; - - SetupFch (SMBUS_BASE_ADDR); - - Status = WriteSmbusByteData (SMBUS_BASE_ADDR, LTC4305_SMBUS_ADDR, 0x80, 0x03); - - switch (SpdData->SocketId) { - case 0: - /* Switch onto the First CPU Socket SMBUS */ - WriteSmbusByteData (SMBUS_BASE_ADDR, LTC4305_SMBUS_ADDR, 0x80, 0x03); - break; - case 1: - /* Switch onto the Second CPU Socket SMBUS */ - WriteSmbusByteData (SMBUS_BASE_ADDR, LTC4305_SMBUS_ADDR, 0x40, 0x03); - break; - default: - /* Switch off two CPU Sockets SMBUS */ - WriteSmbusByteData (SMBUS_BASE_ADDR, LTC4305_SMBUS_ADDR, 0x00, 0x03); - break; - } - Status = ReadSpd (SMBUS_BASE_ADDR, SmBusAddress, SpdData->Buffer, 256); - - /*Output SPD Debug Message*/ - printk(BIOS_EMERG, "file '%s',line %d, %s()\n", __FILE__, __LINE__, __func__); - printk(BIOS_DEBUG, " Status = %d\n",Status); - printk(BIOS_DEBUG, "SocketId MemChannelId SpdData->DimmId SmBusAddress Buffer\n"); - printk(BIOS_DEBUG, "%x, %x, %x, %x, %x\n", SpdData->SocketId, SpdData->MemChannelId, SpdData->DimmId, SmBusAddress, SpdData->Buffer); - - /* Switch off two CPU Sockets SMBUS */ - WriteSmbusByteData (SMBUS_BASE_ADDR, LTC4305_SMBUS_ADDR, 0x00, 0x03); - return Status; -} |