From a1ebbc42ad791369c2e4f626e46917bdb1459d72 Mon Sep 17 00:00:00 2001 From: Kyösti Mälkki Date: Fri, 17 Oct 2014 22:33:22 +0300 Subject: AGESA fam12 fam14 fam15: Use common agesa_readSpd() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Remove northbridge specific callouts for AGESA_READ_SPD. Move low-level SMBus code to southbridge. Change-Id: I5fc91c49d9ef8e0af1c4d8194f857c61ce417d1d Signed-off-by: Kyösti Mälkki Reviewed-on: http://review.coreboot.org/7113 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi Reviewed-by: Paul Menzel Reviewed-by: Edward O'Callaghan --- src/northbridge/amd/agesa/def_callouts.c | 2 +- src/northbridge/amd/agesa/family12/Makefile.inc | 1 - src/northbridge/amd/agesa/family12/dimmSpd.c | 177 +-------------------- src/northbridge/amd/agesa/family12/dimmSpd.h | 63 -------- .../amd/agesa/family12/fam12_callouts.c | 9 -- .../amd/agesa/family12/fam12_callouts.h | 2 - src/northbridge/amd/agesa/family14/dimmSpd.c | 94 +---------- src/northbridge/amd/agesa/family14/dimmSpd.h | 83 ---------- .../amd/agesa/family14/fam14_callouts.c | 14 -- .../amd/agesa/family14/fam14_callouts.h | 2 - src/northbridge/amd/agesa/family15/dimmSpd.c | 134 +--------------- src/northbridge/amd/agesa/family15/dimmSpd.h | 97 ----------- .../amd/agesa/family15/fam15_callouts.c | 1 - 13 files changed, 24 insertions(+), 655 deletions(-) delete mode 100644 src/northbridge/amd/agesa/family12/dimmSpd.h delete mode 100644 src/northbridge/amd/agesa/family14/dimmSpd.h delete mode 100644 src/northbridge/amd/agesa/family15/dimmSpd.h (limited to 'src/northbridge/amd') diff --git a/src/northbridge/amd/agesa/def_callouts.c b/src/northbridge/amd/agesa/def_callouts.c index 99759245cc..fd8e373b67 100644 --- a/src/northbridge/amd/agesa/def_callouts.c +++ b/src/northbridge/amd/agesa/def_callouts.c @@ -115,6 +115,7 @@ AGESA_STATUS agesa_GfxGetVbiosImage(UINT32 Func, UINT32 FchData, VOID *ConfigPrt /* printk(BIOS_DEBUG, "IMGptr=%x\n", pVbiosImageInfo->ImagePtr); */ return pVbiosImageInfo->ImagePtr == NULL ? AGESA_WARNING : AGESA_SUCCESS; } +#endif AGESA_STATUS agesa_ReadSpd (UINT32 Func, UINT32 Data, VOID *ConfigPtr) { @@ -124,7 +125,6 @@ AGESA_STATUS agesa_ReadSpd (UINT32 Func, UINT32 Data, VOID *ConfigPtr) #endif return Status; } -#endif AGESA_STATUS agesa_ReadSpd_from_cbfs(UINT32 Func, UINT32 Data, VOID *ConfigPtr) { diff --git a/src/northbridge/amd/agesa/family12/Makefile.inc b/src/northbridge/amd/agesa/family12/Makefile.inc index ffadecd411..af67f69779 100644 --- a/src/northbridge/amd/agesa/family12/Makefile.inc +++ b/src/northbridge/amd/agesa/family12/Makefile.inc @@ -22,6 +22,5 @@ romstage-y += dimmSpd.c ramstage-y += northbridge.c ramstage-y += fam12_callouts.c -ramstage-y += dimmSpd.c ramstage-$(CONFIG_HAVE_ACPI_TABLES) += ssdt.asl diff --git a/src/northbridge/amd/agesa/family12/dimmSpd.c b/src/northbridge/amd/agesa/family12/dimmSpd.c index 55fb2c3b22..3ac4d7d638 100644 --- a/src/northbridge/amd/agesa/family12/dimmSpd.c +++ b/src/northbridge/amd/agesa/family12/dimmSpd.c @@ -27,27 +27,13 @@ * ***************************************************************************/ -/*---------------------------------------------------------------------------------------- - * M O D U L E S U S E D - *---------------------------------------------------------------------------------------- - */ - #include "Porting.h" #include "AGESA.h" #include "amdlib.h" -#include "dimmSpd.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])) +#include -/*---------------------------------------------------------------------------------------- - * T Y P E D E F S A N D S T R U C T U R E S - *---------------------------------------------------------------------------------------- - */ +#define DIMENSION(array)(sizeof (array)/ sizeof (array [0])) typedef struct _DIMM_INFO_SMBUS{ UINT8 SocketId; @@ -65,156 +51,6 @@ STATIC CONST DIMM_INFO_SMBUS SpdAddrLookup [] = {0, 1, 0, 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 - *---------------------------------------------------------------------------------------- - */ - -/*---------------------------------------------------------------------------------------- - * 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 - ) -{ - WritePmReg (0x2D, IoBase >> 8); - WritePmReg (0x2C, IoBase | 1); - WritePmReg (0x29, 0x80); - WritePmReg (0x28, 0x61); - /* 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 *Buffer, - 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; - } - - Buffer [0] = __inbyte (Iobase + 5); - 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 + 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, @@ -234,8 +70,11 @@ AmdMemoryReadSPD ( } } + if (SmBusAddress == 0) + return AGESA_ERROR; - if (SmBusAddress == 0) return AGESA_ERROR; - SetupFch (SMBUS_BASE_ADDR); - return ReadSpd (SMBUS_BASE_ADDR, SmBusAddress, SpdData->Buffer, 128); + int err = smbus_readSpd(SmBusAddress, (char *) SpdData->Buffer, 128); + if (err) + return AGESA_ERROR; + return AGESA_SUCCESS; } diff --git a/src/northbridge/amd/agesa/family12/dimmSpd.h b/src/northbridge/amd/agesa/family12/dimmSpd.h deleted file mode 100644 index 81ab02e157..0000000000 --- a/src/northbridge/amd/agesa/family12/dimmSpd.h +++ /dev/null @@ -1,63 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2011 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 - *---------------------------------------------------------------------------------------- - */ - -#ifndef _DIMMSPD_H_ -#define _DIMMSPD_H_ - -#include "Porting.h" -#include "AGESA.h" - -/*---------------------------------------------------------------------------------------- - * D E F I N I T I O N S A N D M A C R O S - *---------------------------------------------------------------------------------------- - */ - -/*---------------------------------------------------------------------------------------- - * T Y P E D E F S A N D S T R U C T U R E S - *---------------------------------------------------------------------------------------- - */ - -/*---------------------------------------------------------------------------------------- - * 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 - *---------------------------------------------------------------------------------------- - */ - -/*---------------------------------------------------------------------------------------- - * E X P O R T E D 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 - ); - -/*--------------------------------------------------------------------------------------- - * L O C A L F U N C T I O N S - *--------------------------------------------------------------------------------------- - */ - -#endif diff --git a/src/northbridge/amd/agesa/family12/fam12_callouts.c b/src/northbridge/amd/agesa/family12/fam12_callouts.c index 203c883b05..aa707a899f 100644 --- a/src/northbridge/amd/agesa/family12/fam12_callouts.c +++ b/src/northbridge/amd/agesa/family12/fam12_callouts.c @@ -19,18 +19,9 @@ #include "agesawrapper.h" #include "amdlib.h" -#include "dimmSpd.h" #include "BiosCallOuts.h" #include "Ids.h" #include "OptionsIds.h" #include "heapManager.h" #include "Hudson-2.h" - -AGESA_STATUS BiosReadSpd (UINT32 Func, UINT32 Data, VOID *ConfigPtr) -{ - AGESA_STATUS Status; - Status = AmdMemoryReadSPD (Func, Data, (AGESA_READ_SPD_PARAMS *)ConfigPtr); - - return Status; -} diff --git a/src/northbridge/amd/agesa/family12/fam12_callouts.h b/src/northbridge/amd/agesa/family12/fam12_callouts.h index 6fb9fbb08d..46f4fe514e 100644 --- a/src/northbridge/amd/agesa/family12/fam12_callouts.h +++ b/src/northbridge/amd/agesa/family12/fam12_callouts.h @@ -24,7 +24,5 @@ #include "AGESA.h" -/* AGESA ADVANCED CALLOUTS - MEMORY */ -AGESA_STATUS BiosReadSpd (UINT32 Func,UINT32 Data,VOID *ConfigPtr); #endif /* CALLOUTS_AMD_AGESA_FAM12_H */ diff --git a/src/northbridge/amd/agesa/family14/dimmSpd.c b/src/northbridge/amd/agesa/family14/dimmSpd.c index a3f5bb3627..4a0cd2ad59 100644 --- a/src/northbridge/amd/agesa/family14/dimmSpd.c +++ b/src/northbridge/amd/agesa/family14/dimmSpd.c @@ -26,102 +26,20 @@ #include "Porting.h" #include "AGESA.h" #include "amdlib.h" -#include "dimmSpd.h" #include "chip.h" +#include + /* uncomment for source level debug - GDB gets really confused otherwise. */ //#pragma optimize ("", off) -/** - * Read a single SPD byte. If the first byte is being read, set up the - * address and offset. Following bytes auto increment. - */ -static UINT8 readSmbusByte(UINT16 iobase, UINT8 address, char *buffer, - int offset, int initial_offset) -{ - unsigned int status = -1; - UINT64 time_limit; - - /* clear status register */ - __outbyte(iobase + SMBUS_STATUS_REG, 0x1E); - - if (offset == initial_offset) { - /* Clear slave status, set offset, set slave address and start reading */ - __outbyte(iobase + SMBUS_SLAVE_STATUS_REG, 0x3E); - __outbyte(iobase + SMBUS_CONTROL_REG, offset); - __outbyte(iobase + SMBUS_HOST_CMD_REG, address | READ_BIT); - __outbyte(iobase + SMBUS_COMMAND_REG, SMBUS_READ_BYTE_COMMAND); - } else { - /* Issue read command - auto increments to next byte */ - __outbyte(iobase + SMBUS_COMMAND_REG, SMBUS_READ_COMMAND); - } - /* time limit to avoid hanging for unexpected error status */ - time_limit = __rdtsc() + MAX_READ_TSC_COUNT; - while (__rdtsc() <= time_limit) { - status = __inbyte(iobase + SMBUS_STATUS_REG); - if ((status & SMBUS_INTERRUPT_MASK) == 0) - continue; /* SMBusInterrupt not set, keep waiting */ - if ((status & HOSTBUSY_MASK) != 0) - continue; /* HostBusy set, keep waiting */ - break; - } - - if (status != STATUS__COMPLETED_SUCCESSFULLY) - return AGESA_ERROR; - - buffer[0] = __inbyte(iobase + SMBUS_DATA0_REG); - return AGESA_SUCCESS; -} - -static void writePmReg(UINT8 reg, UINT8 data) -{ - __outbyte(PMIO_INDEX_REG, reg); - __outbyte(PMIO_DATA_REG, data); -} - -static void setupFch(UINT16 ioBase) -{ - /* set up SMBUS - Set to SMBUS 0 & set base address */ - /* For SB800 & Hudson1 to SB900 & Hudson 2/3 */ - writePmReg(SMBUS_BAR_HIGH_BYTE, ioBase >> 8); - writePmReg(SMBUS_BAR_LOW_BYTE, (ioBase & 0xe0) | 1); - - /* set SMBus clock to 400 KHz */ - __outbyte(ioBase + SMBUS_CLOCK_REG, SMBUS_FREQUENCY_CONST / 400000); -} - -/** - * Read one or more SPD bytes from a DIMM. - * Start with offset zero and read sequentially. - * Reads 128 bytes in 7-8 ms at 400 KHz. - */ -static UINT8 readspd(UINT16 iobase, UINT8 SmbusSlaveAddress, char *buffer, - UINT16 count) -{ - UINT16 index; - UINT8 status; - UINT8 initial_offset = 0; - - setupFch(iobase); - - for (index = initial_offset; index < count; index++) { - status = readSmbusByte(iobase, SmbusSlaveAddress, &buffer[index], index, - initial_offset); - if (status != AGESA_SUCCESS) - return status; - } - - return status; -} - /** * Gets the SMBUS address for an SPD from the array in devicetree.cb * then read the SPD into the supplied buffer. */ -AGESA_STATUS agesa_ReadSPD(UINT32 unused1, UINT32 unused2, void *infoptr) +AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINT32 unused2, AGESA_READ_SPD_PARAMS *info) { UINT8 spdAddress; - AGESA_READ_SPD_PARAMS *info = infoptr; ROMSTAGE_CONST struct device *dev = dev_find_slot(0, PCI_DEVFN(0x18, 2)); ROMSTAGE_CONST struct northbridge_amd_agesa_family14_config *config = NULL; @@ -141,5 +59,9 @@ AGESA_STATUS agesa_ReadSPD(UINT32 unused1, UINT32 unused2, void *infoptr) if (spdAddress == 0) return AGESA_ERROR; - return readspd(SMBUS0_BASE_ADDRESS, spdAddress, (void *)info->Buffer, 128); + + int err = smbus_readSpd(spdAddress, (void *) info->Buffer, 128); + if (err) + return AGESA_ERROR; + return AGESA_SUCCESS; } diff --git a/src/northbridge/amd/agesa/family14/dimmSpd.h b/src/northbridge/amd/agesa/family14/dimmSpd.h deleted file mode 100644 index 57512c72bb..0000000000 --- a/src/northbridge/amd/agesa/family14/dimmSpd.h +++ /dev/null @@ -1,83 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2011 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, MA02110-1301 USA - */ - -/*---------------------------------------------------------------------------------------- - * M O D U L E S U S E D - *---------------------------------------------------------------------------------------- - */ - -#ifndef _DIMMSPD_H_ -#define _DIMMSPD_H_ - -/*---------------------------------------------------------------------------------------- - * D E F I N I T I O N S A N D M A C R O S - *---------------------------------------------------------------------------------------- - */ - -#define READ_BIT 0x01 - -#define SMBUS_INTERRUPT_MASK 0x02 -#define HOSTBUSY_MASK 0x01 - -#define SMBUS_READ_BYTE_COMMAND 0x48 -#define SMBUS_READ_COMMAND 0x44 - -#define MAX_READ_TSC_COUNT (2000000000 / 10) - -#define PMIO_INDEX_REG 0xCD6 -#define PMIO_DATA_REG 0xCD7 - -#define SMBUS_BAR_LOW_BYTE 0x2C -#define SMBUS_BAR_HIGH_BYTE 0x2D - -#define SMBUS_STATUS_REG 0x00 -#define SMBUS_SLAVE_STATUS_REG 0x01 -#define SMBUS_COMMAND_REG 0x02 -#define SMBUS_CONTROL_REG 0x03 -#define SMBUS_HOST_CMD_REG 0x04 -#define SMBUS_DATA0_REG 0x05 -#define SMBUS_CLOCK_REG 0x0E - -#define STATUS__COMPLETED_SUCCESSFULLY 0x02 - -#define SMBUS_FREQUENCY_CONST 66000000 / 4 -/*---------------------------------------------------------------------------------------- - * T Y P E D E F S A N D S T R U C T U R E S - *---------------------------------------------------------------------------------------- - */ - -/*---------------------------------------------------------------------------------------- - * 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 - *---------------------------------------------------------------------------------------- - */ - -/*---------------------------------------------------------------------------------------- - * E X P O R T E D F U N C T I O N S - *---------------------------------------------------------------------------------------- - */ - -AGESA_STATUS -agesa_ReadSPD (IN UINT32 Func, IN UINT32 Data, IN OUT void *SpdData); - -/*--------------------------------------------------------------------------------------- - * L O C A L F U N C T I O N S - *--------------------------------------------------------------------------------------- - */ - -#endif diff --git a/src/northbridge/amd/agesa/family14/fam14_callouts.c b/src/northbridge/amd/agesa/family14/fam14_callouts.c index 3be5037d82..a00c25a231 100644 --- a/src/northbridge/amd/agesa/family14/fam14_callouts.c +++ b/src/northbridge/amd/agesa/family14/fam14_callouts.c @@ -22,18 +22,4 @@ #include "fam14_callouts.h" #include "heapManager.h" #include "SB800.h" -#include "dimmSpd.h" - - -AGESA_STATUS BiosReadSpd (UINT32 Func, UINT32 Data, VOID *ConfigPtr) -{ - AGESA_STATUS Status; -#ifdef __PRE_RAM__ - Status = agesa_ReadSPD (Func, Data, ConfigPtr); -#else - Status = AGESA_UNSUPPORTED; -#endif - - return Status; -} diff --git a/src/northbridge/amd/agesa/family14/fam14_callouts.h b/src/northbridge/amd/agesa/family14/fam14_callouts.h index f58441aaa3..b9a36fe88c 100644 --- a/src/northbridge/amd/agesa/family14/fam14_callouts.h +++ b/src/northbridge/amd/agesa/family14/fam14_callouts.h @@ -24,7 +24,5 @@ #include "Porting.h" #include "AGESA.h" -/* AGESA ADVANCED CALLOUTS - MEMORY */ -AGESA_STATUS BiosReadSpd (UINT32 Func,UINT32 Data,VOID *ConfigPtr); #endif /* CALLOUTS_AMD_AGESA_FAM14_H */ diff --git a/src/northbridge/amd/agesa/family15/dimmSpd.c b/src/northbridge/amd/agesa/family15/dimmSpd.c index 294454c387..375a968dac 100644 --- a/src/northbridge/amd/agesa/family15/dimmSpd.c +++ b/src/northbridge/amd/agesa/family15/dimmSpd.c @@ -25,143 +25,20 @@ #include "Porting.h" #include "AGESA.h" #include "amdlib.h" -#include "dimmSpd.h" #include "chip.h" +#include + /* uncomment for source level debug - GDB gets really confused otherwise. */ //#pragma optimize ("", off) -/** - * Read a single SPD byte. If the first byte is being read, set up the - * address and offset. Following bytes auto increment. - */ -static UINT8 readSmbusByte(UINT16 iobase, UINT8 address, char *buffer, - int offset, int initial_offset) -{ - unsigned int status = -1; - UINT64 time_limit; - - /* clear status register */ - __outbyte(iobase + SMBUS_STATUS_REG, 0xFF); - __outbyte(iobase + SMBUS_SLAVE_STATUS_REG, 0x1F); - - if (offset == initial_offset) { - /* Set offset, set slave address and start reading */ - __outbyte(iobase + SMBUS_CONTROL_REG, offset); - __outbyte(iobase + SMBUS_HOST_CMD_REG, address | READ_BIT); - __outbyte(iobase + SMBUS_COMMAND_REG, SMBUS_READ_BYTE_COMMAND); - } else { - /* Issue read command - auto increments to next byte */ - __outbyte(iobase + SMBUS_COMMAND_REG, SMBUS_READ_COMMAND); - } - /* time limit to avoid hanging for unexpected error status */ - time_limit = __rdtsc() + MAX_READ_TSC_COUNT; - while (__rdtsc() <= time_limit) { - status = __inbyte(iobase + SMBUS_STATUS_REG); - if ((status & SMBUS_INTERRUPT_MASK) == 0) - continue; /* SMBusInterrupt not set, keep waiting */ - if ((status & HOSTBUSY_MASK) != 0) - continue; /* HostBusy set, keep waiting */ - break; - } - - if (status != STATUS__COMPLETED_SUCCESSFULLY) - return AGESA_ERROR; - - buffer[0] = __inbyte(iobase + SMBUS_DATA0_REG); - return AGESA_SUCCESS; -} - -/** - * Write a single smbus byte. - */ -UINT8 writeSmbusByte(UINT16 iobase, UINT8 address, UINT8 buffer, - int offset) -{ - unsigned int status = -1; - UINT64 time_limit; - - /* clear status register */ - __outbyte(iobase + SMBUS_STATUS_REG, 0xFF); - __outbyte(iobase + SMBUS_SLAVE_STATUS_REG, 0x1F); - - /* set offset, set slave address, set data and start writing */ - __outbyte(iobase + SMBUS_CONTROL_REG, offset); - __outbyte(iobase + SMBUS_HOST_CMD_REG, address & (~READ_BIT)); - __outbyte(iobase + SMBUS_DATA0_REG, buffer); - __outbyte(iobase + SMBUS_COMMAND_REG, SMBUS_WRITE_BYTE_COMMAND); - - /* time limit to avoid hanging for unexpected error status */ - time_limit = __rdtsc() + MAX_READ_TSC_COUNT; - while (__rdtsc() <= time_limit) { - status = __inbyte(iobase + SMBUS_STATUS_REG); - if ((status & SMBUS_INTERRUPT_MASK) == 0) - continue; /* SMBusInterrupt not set, keep waiting */ - if ((status & HOSTBUSY_MASK) != 0) - continue; /* HostBusy set, keep waiting */ - break; - } - - if (status != STATUS__COMPLETED_SUCCESSFULLY) - return AGESA_ERROR; - - return AGESA_SUCCESS; -} - -static void setupFch(UINT16 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 = (ioBase & 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 + SMBUS_CLOCK_REG, SMBUS_FREQUENCY_CONST / 400000); -} - -/** - * Read one or more SPD bytes from a DIMM. - * Start with offset zero and read sequentially. - * Reads 128 bytes in 7-8 ms at 400 KHz. - */ -static UINT8 readspd(UINT16 iobase, UINT8 SmbusSlaveAddress, char *buffer, - UINT16 count) -{ - UINT16 index; - UINT8 status; - UINT8 initial_offset = 0; - - setupFch(iobase); - - for (index = initial_offset; index < count; index++) { - status = readSmbusByte(iobase, SmbusSlaveAddress, &buffer[index], index, - initial_offset); - if (status != AGESA_SUCCESS) - return status; - } - - return status; -} - /** * Gets the SMBus address for an SPD from the array in devicetree.cb * then read the SPD into the supplied buffer. */ -AGESA_STATUS agesa_ReadSPD(UINT32 unused1, UINT32 unused2, void *infoptr) +AGESA_STATUS AmdMemoryReadSPD (UINT32 unused1, UINT32 unused2, AGESA_READ_SPD_PARAMS *info) { UINT8 spdAddress; - AGESA_READ_SPD_PARAMS *info = infoptr; ROMSTAGE_CONST struct device *dev = dev_find_slot(0, PCI_DEVFN(0x18, 2)); ROMSTAGE_CONST struct northbridge_amd_agesa_family15_config *config = NULL; @@ -182,5 +59,8 @@ AGESA_STATUS agesa_ReadSPD(UINT32 unused1, UINT32 unused2, void *infoptr) if (spdAddress == 0) return AGESA_ERROR; - return readspd(SMBUS0_BASE_ADDRESS, spdAddress, (void *)info->Buffer, 256); + int err = smbus_readSpd(spdAddress, (void *) info->Buffer, 256); + if (err) + return AGESA_ERROR; + return AGESA_SUCCESS; } diff --git a/src/northbridge/amd/agesa/family15/dimmSpd.h b/src/northbridge/amd/agesa/family15/dimmSpd.h deleted file mode 100644 index 167b4a1034..0000000000 --- a/src/northbridge/amd/agesa/family15/dimmSpd.h +++ /dev/null @@ -1,97 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2011 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, MA02110-1301 USA - */ - -/*---------------------------------------------------------------------------------------- - * M O D U L E S U S E D - *---------------------------------------------------------------------------------------- - */ - -#ifndef _DIMMSPD_H_ -#define _DIMMSPD_H_ - -/*---------------------------------------------------------------------------------------- - * D E F I N I T I O N S A N D M A C R O S - *---------------------------------------------------------------------------------------- - */ - -#define READ_BIT 0x01 - -#define SMBUS_INTERRUPT_MASK 0x02 -#define HOSTBUSY_MASK 0x01 - -#define SMBUS_READ_BYTE_COMMAND 0x48 -#define SMBUS_READ_COMMAND 0x44 - -#define SMBUS_WRITE_BYTE_COMMAND 0x48 - -#define MAX_READ_TSC_COUNT (2000000000 / 10) - -#define PMIO_INDEX_REG 0xCD6 -#define PMIO_DATA_REG 0xCD7 - -#define SMBUS_BAR_LOW_BYTE 0x2C -#define SMBUS_BAR_HIGH_BYTE 0x2D - -#define SMBUS_STATUS_REG 0x00 -#define SMBUS_SLAVE_STATUS_REG 0x01 -#define SMBUS_COMMAND_REG 0x02 -#define SMBUS_CONTROL_REG 0x03 -#define SMBUS_HOST_CMD_REG 0x04 -#define SMBUS_DATA0_REG 0x05 -#define SMBUS_CLOCK_REG 0x0E - -#define STATUS__COMPLETED_SUCCESSFULLY 0x02 - -#define SMBUS_FREQUENCY_CONST 66000000 / 4 -/*---------------------------------------------------------------------------------------- - * T Y P E D E F S A N D S T R U C T U R E S - *---------------------------------------------------------------------------------------- - */ - -/*---------------------------------------------------------------------------------------- - * 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 - *---------------------------------------------------------------------------------------- - */ - -/*---------------------------------------------------------------------------------------- - * E X P O R T E D F U N C T I O N S - *---------------------------------------------------------------------------------------- - */ - -AGESA_STATUS -agesa_ReadSPD (IN UINT32 Func, IN UINT32 Data, IN OUT void *SpdData); - -/* - * This function prototype is only used by the AMD Dinar mainboard. The SMBus - * write is used to select which socket's SPD will be read by the subsequent - * SPD read call. This function is being placed in the F15 wrapper code with - * the other SPD read functions because the next step of the SPD read clean-up - * will be to move the SMBus read/write functions into the southbridge to make - * them more generic. Having the writeSmbusByte() function in the same file as - * the readSmbusByte() function will ensure that the writeSmbusByte() function - * is not overlooked. - */ -UINT8 writeSmbusByte(UINT16 iobase, UINT8 address, UINT8 buffer, int offset); - -/*--------------------------------------------------------------------------------------- - * L O C A L F U N C T I O N S - *--------------------------------------------------------------------------------------- - */ - -#endif diff --git a/src/northbridge/amd/agesa/family15/fam15_callouts.c b/src/northbridge/amd/agesa/family15/fam15_callouts.c index 3b6549224b..a049a0e6dc 100644 --- a/src/northbridge/amd/agesa/family15/fam15_callouts.c +++ b/src/northbridge/amd/agesa/family15/fam15_callouts.c @@ -23,5 +23,4 @@ #include "Ids.h" #include "OptionsIds.h" #include "heapManager.h" -#include #include -- cgit v1.2.3