/*
* ( C ) Copyright 2001
* Josh Huber < huber @ mclx . com > , Mission Critical Linux , Inc .
*
* See file CREDITS for list of people who contributed to this
* project .
*
* 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 ; either version 2 of
* the License , or ( at your option ) any later version .
*
* 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 . , 59 Temple Place , Suite 330 , Boston ,
* MA 02111 - 1307 USA
*/
/*************************************************************************
* adaption for the Marvell DB64460 Board
* Ingo Assmus ( ingo . assmus @ keymile . com )
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* sdram_init.c - automatic memory sizing */
# include <common.h>
# include <74xx_7xx.h>
# include "../include/memory.h"
# include "../include/pci.h"
# include "../include/mv_gen_reg.h"
# include <net.h>
# include "eth.h"
# include "mpsc.h"
# include "../common/i2c.h"
# include "64460.h"
# include "mv_regs.h"
DECLARE_GLOBAL_DATA_PTR ;
# undef DEBUG
# define MAP_PCI
# ifdef DEBUG
# define DP(x) x
# else
# define DP(x)
# endif
int set_dfcdlInit ( void ) ; /* setup delay line of Mv64460 */
int mvDmaIsChannelActive ( int ) ;
int mvDmaSetMemorySpace ( ulong , ulong , ulong , ulong , ulong ) ;
int mvDmaTransfer ( int , ulong , ulong , ulong , ulong ) ;
/* ------------------------------------------------------------------------- */
int
memory_map_bank ( unsigned int bankNo ,
unsigned int bankBase , unsigned int bankLength )
{
# ifdef MAP_PCI
PCI_HOST host ;
# endif
# ifdef DEBUG
if ( bankLength > 0 ) {
printf ( " mapping bank %d at %08x - %08x \n " ,
bankNo , bankBase , bankBase + bankLength - 1 ) ;
} else {
printf ( " unmapping bank %d \n " , bankNo ) ;
}
# endif
memoryMapBank ( bankNo , bankBase , bankLength ) ;
# ifdef MAP_PCI
for ( host = PCI_HOST0 ; host < = PCI_HOST1 ; host + + ) {
const int features =
PREFETCH_ENABLE |
DELAYED_READ_ENABLE |
AGGRESSIVE_PREFETCH |
READ_LINE_AGGRESSIVE_PREFETCH |
READ_MULTI_AGGRESSIVE_PREFETCH |
MAX_BURST_4 | PCI_NO_SWAP ;
pciMapMemoryBank ( host , bankNo , bankBase , bankLength ) ;
pciSetRegionSnoopMode ( host , bankNo , PCI_SNOOP_WB , bankBase ,
bankLength ) ;
pciSetRegionFeatures ( host , bankNo , features , bankBase ,
bankLength ) ;
}
# endif
return 0 ;
}
# define GB (1 << 30)
/* much of this code is based on (or is) the code in the pip405 port */
/* thanks go to the authors of said port - Josh */
/* structure to store the relevant information about an sdram bank */
typedef struct sdram_info {
uchar drb_size ;
uchar registered , ecc ;
uchar tpar ;
uchar tras_clocks ;
uchar burst_len ;
uchar banks , slot ;
} sdram_info_t ;
/* Typedefs for 'gtAuxilGetDIMMinfo' function */
typedef enum _memoryType { SDRAM , DDR } MEMORY_TYPE ;
typedef enum _voltageInterface { TTL_5V_TOLERANT , LVTTL , HSTL_1_5V ,
SSTL_3_3V , SSTL_2_5V , VOLTAGE_UNKNOWN ,
} VOLTAGE_INTERFACE ;
typedef enum _max_CL_supported_DDR { DDR_CL_1 = 1 , DDR_CL_1_5 = 2 , DDR_CL_2 =
4 , DDR_CL_2_5 = 8 , DDR_CL_3 = 16 , DDR_CL_3_5 =
32 , DDR_CL_FAULT } MAX_CL_SUPPORTED_DDR ;
typedef enum _max_CL_supported_SD { SD_CL_1 =
1 , SD_CL_2 , SD_CL_3 , SD_CL_4 , SD_CL_5 , SD_CL_6 , SD_CL_7 ,
SD_FAULT } MAX_CL_SUPPORTED_SD ;
/* SDRAM/DDR information struct */
typedef struct _gtMemoryDimmInfo {
MEMORY_TYPE memoryType ;
unsigned int numOfRowAddresses ;
unsigned int numOfColAddresses ;
unsigned int numOfModuleBanks ;
unsigned int dataWidth ;
VOLTAGE_INTERFACE voltageInterface ;
unsigned int errorCheckType ; /* ECC , PARITY.. */
unsigned int sdramWidth ; /* 4,8,16 or 32 */ ;
unsigned int errorCheckDataWidth ; /* 0 - no, 1 - Yes */
unsigned int minClkDelay ;
unsigned int burstLengthSupported ;
unsigned int numOfBanksOnEachDevice ;
unsigned int suportedCasLatencies ;
unsigned int RefreshInterval ;
unsigned int maxCASlatencySupported_LoP ; /* LoP left of point (measured in ns) */
unsigned int maxCASlatencySupported_RoP ; /* RoP right of point (measured in ns) */
MAX_CL_SUPPORTED_DDR maxClSupported_DDR ;
MAX_CL_SUPPORTED_SD maxClSupported_SD ;
unsigned int moduleBankDensity ;
/* module attributes (true for yes) */
bool bufferedAddrAndControlInputs ;
bool registeredAddrAndControlInputs ;
bool onCardPLL ;
bool bufferedDQMBinputs ;
bool registeredDQMBinputs ;
bool differentialClockInput ;
bool redundantRowAddressing ;
/* module general attributes */
bool suportedAutoPreCharge ;
bool suportedPreChargeAll ;
bool suportedEarlyRasPreCharge ;
bool suportedWrite1ReadBurst ;
bool suported5PercentLowVCC ;
bool suported5PercentUpperVCC ;
/* module timing parameters */
unsigned int minRasToCasDelay ;
unsigned int minRowActiveRowActiveDelay ;
unsigned int minRasPulseWidth ;
unsigned int minRowPrechargeTime ; /* measured in ns */
int addrAndCommandHoldTime ; /* LoP left of point (measured in ns) */
int addrAndCommandSetupTime ; /* (measured in ns/100) */
int dataInputSetupTime ; /* LoP left of point (measured in ns) */
int dataInputHoldTime ; /* LoP left of point (measured in ns) */
/* tAC times for highest 2nd and 3rd highest CAS Latency values */
unsigned int clockToDataOut_LoP ; /* LoP left of point (measured in ns) */
unsigned int clockToDataOut_RoP ; /* RoP right of point (measured in ns) */
unsigned int clockToDataOutMinus1_LoP ; /* LoP left of point (measured in ns) */
unsigned int clockToDataOutMinus1_RoP ; /* RoP right of point (measured in ns) */
unsigned int clockToDataOutMinus2_LoP ; /* LoP left of point (measured in ns) */
unsigned int clockToDataOutMinus2_RoP ; /* RoP right of point (measured in ns) */
unsigned int minimumCycleTimeAtMaxCasLatancy_LoP ; /* LoP left of point (measured in ns) */
unsigned int minimumCycleTimeAtMaxCasLatancy_RoP ; /* RoP right of point (measured in ns) */
unsigned int minimumCycleTimeAtMaxCasLatancyMinus1_LoP ; /* LoP left of point (measured in ns) */
unsigned int minimumCycleTimeAtMaxCasLatancyMinus1_RoP ; /* RoP right of point (measured in ns) */
unsigned int minimumCycleTimeAtMaxCasLatancyMinus2_LoP ; /* LoP left of point (measured in ns) */
unsigned int minimumCycleTimeAtMaxCasLatancyMinus2_RoP ; /* RoP right of point (measured in ns) */
/* Parameters calculated from
the extracted DIMM information */
unsigned int size ;
unsigned int deviceDensity ; /* 16,64,128,256 or 512 Mbit */
unsigned int numberOfDevices ;
uchar drb_size ; /* DRAM size in n*64Mbit */
uchar slot ; /* Slot Number this module is inserted in */
uchar spd_raw_data [ 128 ] ; /* Content of SPD-EEPROM copied 1:1 */
# ifdef DEBUG
uchar manufactura [ 8 ] ; /* Content of SPD-EEPROM Byte 64-71 */
uchar modul_id [ 18 ] ; /* Content of SPD-EEPROM Byte 73-90 */
uchar vendor_data [ 27 ] ; /* Content of SPD-EEPROM Byte 99-125 */
unsigned long modul_serial_no ; /* Content of SPD-EEPROM Byte 95-98 */
unsigned int manufac_date ; /* Content of SPD-EEPROM Byte 93-94 */
unsigned int modul_revision ; /* Content of SPD-EEPROM Byte 91-92 */
uchar manufac_place ; /* Content of SPD-EEPROM Byte 72 */
# endif
} AUX_MEM_DIMM_INFO ;
/*
* translate ns . ns / 10 coding of SPD timing values
* into 10 ps unit values
*/
static inline unsigned short NS10to10PS ( unsigned char spd_byte )
{
unsigned short ns , ns10 ;
/* isolate upper nibble */
ns = ( spd_byte > > 4 ) & 0x0F ;
/* isolate lower nibble */
ns10 = ( spd_byte & 0x0F ) ;
return ( ns * 100 + ns10 * 10 ) ;
}
/*
* translate ns coding of SPD timing values
* into 10 ps unit values
*/
static inline unsigned short NSto10PS ( unsigned char spd_byte )
{
return ( spd_byte * 100 ) ;
}
/* This code reads the SPD chip on the sdram and populates
* the array which is passed in with the relevant information */
/* static int check_dimm(uchar slot, AUX_MEM_DIMM_INFO *info) */
static int check_dimm ( uchar slot , AUX_MEM_DIMM_INFO * dimmInfo )
{
unsigned long spd_checksum ;
# ifdef ZUMA_NTL
/* zero all the values */
memset ( info , 0 , sizeof ( * info ) ) ;
/*
if ( ! slot ) {
info - > slot = 0 ;
info - > banks = 1 ;
info - > registered = 0 ;
info - > drb_size = 16 ; */ /* 16 - 256MBit, 32 - 512MBit */
/* info->tpar = 3;
info - > tras_clocks = 5 ;
info - > burst_len = 4 ;
*/
# ifdef CONFIG_MV64460_ECC
/* check for ECC/parity [0 = none, 1 = parity, 2 = ecc] */
dimmInfo - > errorCheckType = 2 ;
/* info->ecc = 2;*/
# endif
}
return 0 ;
# else
uchar addr = slot = = 0 ? DIMM0_I2C_ADDR : DIMM1_I2C_ADDR ;
int ret ;
unsigned int i , j , density = 1 , devicesForErrCheck = 0 ;
# ifdef DEBUG
unsigned int k ;
# endif
unsigned int rightOfPoint = 0 , leftOfPoint = 0 , mult , div , time_tmp ;
int sign = 1 , shift , maskLeftOfPoint , maskRightOfPoint ;
uchar supp_cal , cal_val ;
ulong memclk , tmemclk ;
ulong tmp ;
uchar trp_clocks = 0 , trcd_clocks , tras_clocks , trrd_clocks ;
uchar data [ 128 ] ;
memclk = gd - > bus_clk ;
tmemclk = 1000000000 / ( memclk / 100 ) ; /* in 10 ps units */
DP ( puts ( " before i2c read \n " ) ) ;
ret = i2c_read ( addr , 0 , 1 , data , 128 ) ;
DP ( puts ( " after i2c read \n " ) ) ;
/* zero all the values */
memset ( dimmInfo , 0 , sizeof ( * dimmInfo ) ) ;
/* copy the SPD content 1:1 into the dimmInfo structure */
for ( i = 0 ; i < = 127 ; i + + ) {
dimmInfo - > spd_raw_data [ i ] = data [ i ] ;
}
if ( ret ) {
DP ( printf ( " No DIMM in slot %d [err = %x] \n " , slot , ret ) ) ;
return 0 ;
} else
dimmInfo - > slot = slot ; /* start to fill up dimminfo for this "slot" */
# ifdef CONFIG_SYS_DISPLAY_DIMM_SPD_CONTENT
for ( i = 0 ; i < = 127 ; i + + ) {
printf ( " SPD-EEPROM Byte %3d = %3x (%3d) \n " , i , data [ i ] ,
data [ i ] ) ;
}
# endif
# ifdef DEBUG
/* find Manufactura of Dimm Module */
for ( i = 0 ; i < sizeof ( dimmInfo - > manufactura ) ; i + + ) {
dimmInfo - > manufactura [ i ] = data [ 64 + i ] ;
}
printf ( " \n This RAM-Module is produced by: %s \n " ,
dimmInfo - > manufactura ) ;
/* find Manul-ID of Dimm Module */
for ( i = 0 ; i < sizeof ( dimmInfo - > modul_id ) ; i + + ) {
dimmInfo - > modul_id [ i ] = data [ 73 + i ] ;
}
printf ( " The Module-ID of this RAM-Module is: %s \n " ,
dimmInfo - > modul_id ) ;
/* find Vendor-Data of Dimm Module */
for ( i = 0 ; i < sizeof ( dimmInfo - > vendor_data ) ; i + + ) {
dimmInfo - > vendor_data [ i ] = data [ 99 + i ] ;
}
printf ( " Vendor Data of this RAM-Module is: %s \n " ,
dimmInfo - > vendor_data ) ;
/* find modul_serial_no of Dimm Module */
dimmInfo - > modul_serial_no = ( * ( ( unsigned long * ) ( & data [ 95 ] ) ) ) ;
printf ( " Serial No. of this RAM-Module is: %ld (%lx) \n " ,
dimmInfo - > modul_serial_no , dimmInfo - > modul_serial_no ) ;
/* find Manufac-Data of Dimm Module */
dimmInfo - > manufac_date = ( * ( ( unsigned int * ) ( & data [ 93 ] ) ) ) ;
printf ( " Manufactoring Date of this RAM-Module is: %d.%d \n " , data [ 93 ] , data [ 94 ] ) ; /*dimmInfo->manufac_date */
/* find modul_revision of Dimm Module */
dimmInfo - > modul_revision = ( * ( ( unsigned int * ) ( & data [ 91 ] ) ) ) ;
printf ( " Module Revision of this RAM-Module is: %d.%d \n " , data [ 91 ] , data [ 92 ] ) ; /* dimmInfo->modul_revision */
/* find manufac_place of Dimm Module */
dimmInfo - > manufac_place = ( * ( ( unsigned char * ) ( & data [ 72 ] ) ) ) ;
printf ( " manufac_place of this RAM-Module is: %d \n " ,
dimmInfo - > manufac_place ) ;
# endif
/*------------------------------------------------------------------------------------------------------------------------------*/
/* calculate SPD checksum */
/*------------------------------------------------------------------------------------------------------------------------------*/
spd_checksum = 0 ;
for ( i = 0 ; i < = 62 ; i + + ) {
spd_checksum + = data [ i ] ;
}
if ( ( spd_checksum & 0xff ) ! = data [ 63 ] ) {
printf ( " ### Error in SPD Checksum !!! Is_value: %2x should value %2x \n " , ( unsigned int ) ( spd_checksum & 0xff ) , data [ 63 ] ) ;
hang ( ) ;
}
else
printf ( " SPD Checksum ok! \n " ) ;
/*------------------------------------------------------------------------------------------------------------------------------*/
for ( i = 2 ; i < = 35 ; i + + ) {
switch ( i ) {
case 2 : /* Memory type (DDR / SDRAM) */
dimmInfo - > memoryType = ( data [ i ] = = 0x7 ) ? DDR : SDRAM ;
# ifdef DEBUG
if ( dimmInfo - > memoryType = = 0 )
DP ( printf
( " Dram_type in slot %d is: SDRAM \n " ,
dimmInfo - > slot ) ) ;
if ( dimmInfo - > memoryType = = 1 )
DP ( printf
( " Dram_type in slot %d is: DDRAM \n " ,
dimmInfo - > slot ) ) ;
# endif
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 3 : /* Number Of Row Addresses */
dimmInfo - > numOfRowAddresses = data [ i ] ;
DP ( printf
( " Module Number of row addresses: %d \n " ,
dimmInfo - > numOfRowAddresses ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 4 : /* Number Of Column Addresses */
dimmInfo - > numOfColAddresses = data [ i ] ;
DP ( printf
( " Module Number of col addresses: %d \n " ,
dimmInfo - > numOfColAddresses ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 5 : /* Number Of Module Banks */
dimmInfo - > numOfModuleBanks = data [ i ] ;
DP ( printf
( " Number of Banks on Mod. : %d \n " ,
dimmInfo - > numOfModuleBanks ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 6 : /* Data Width */
dimmInfo - > dataWidth = data [ i ] ;
DP ( printf
( " Module Data Width: %d \n " ,
dimmInfo - > dataWidth ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 8 : /* Voltage Interface */
switch ( data [ i ] ) {
case 0x0 :
dimmInfo - > voltageInterface = TTL_5V_TOLERANT ;
DP ( printf
( " Module is TTL_5V_TOLERANT \n " ) ) ;
break ;
case 0x1 :
dimmInfo - > voltageInterface = LVTTL ;
DP ( printf
( " Module is LVTTL \n " ) ) ;
break ;
case 0x2 :
dimmInfo - > voltageInterface = HSTL_1_5V ;
DP ( printf
( " Module is TTL_5V_TOLERANT \n " ) ) ;
break ;
case 0x3 :
dimmInfo - > voltageInterface = SSTL_3_3V ;
DP ( printf
( " Module is HSTL_1_5V \n " ) ) ;
break ;
case 0x4 :
dimmInfo - > voltageInterface = SSTL_2_5V ;
DP ( printf
( " Module is SSTL_2_5V \n " ) ) ;
break ;
default :
dimmInfo - > voltageInterface = VOLTAGE_UNKNOWN ;
DP ( printf
( " Module is VOLTAGE_UNKNOWN \n " ) ) ;
break ;
}
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 9 : /* Minimum Cycle Time At Max CasLatancy */
shift = ( dimmInfo - > memoryType = = DDR ) ? 4 : 2 ;
mult = ( dimmInfo - > memoryType = = DDR ) ? 10 : 25 ;
maskLeftOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0xf0 : 0xfc ;
maskRightOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0xf : 0x03 ;
leftOfPoint = ( data [ i ] & maskLeftOfPoint ) > > shift ;
rightOfPoint = ( data [ i ] & maskRightOfPoint ) * mult ;
dimmInfo - > minimumCycleTimeAtMaxCasLatancy_LoP =
leftOfPoint ;
dimmInfo - > minimumCycleTimeAtMaxCasLatancy_RoP =
rightOfPoint ;
DP ( printf
( " Minimum Cycle Time At Max CasLatancy: %d.%d [ns] \n " ,
leftOfPoint , rightOfPoint ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 10 : /* Clock To Data Out */
div = ( dimmInfo - > memoryType = = DDR ) ? 100 : 10 ;
time_tmp =
( ( ( data [ i ] & 0xf0 ) > > 4 ) * 10 ) +
( ( data [ i ] & 0x0f ) ) ;
leftOfPoint = time_tmp / div ;
rightOfPoint = time_tmp % div ;
dimmInfo - > clockToDataOut_LoP = leftOfPoint ;
dimmInfo - > clockToDataOut_RoP = rightOfPoint ;
DP ( printf ( " Clock To Data Out: %d.%2d [ns] \n " , leftOfPoint , rightOfPoint ) ) ; /*dimmInfo->clockToDataOut */
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
/*#ifdef CONFIG_ECC */
case 11 : /* Error Check Type */
dimmInfo - > errorCheckType = data [ i ] ;
DP ( printf
( " Error Check Type (0=NONE): %d \n " ,
dimmInfo - > errorCheckType ) ) ;
break ;
/* #endif */
/*------------------------------------------------------------------------------------------------------------------------------*/
case 12 : /* Refresh Interval */
dimmInfo - > RefreshInterval = data [ i ] ;
DP ( printf
( " RefreshInterval (80= Self refresh Normal, 15.625us) : %x \n " ,
dimmInfo - > RefreshInterval ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 13 : /* Sdram Width */
dimmInfo - > sdramWidth = data [ i ] ;
DP ( printf
( " Sdram Width: %d \n " ,
dimmInfo - > sdramWidth ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 14 : /* Error Check Data Width */
dimmInfo - > errorCheckDataWidth = data [ i ] ;
DP ( printf
( " Error Check Data Width: %d \n " ,
dimmInfo - > errorCheckDataWidth ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 15 : /* Minimum Clock Delay */
dimmInfo - > minClkDelay = data [ i ] ;
DP ( printf
( " Minimum Clock Delay: %d \n " ,
dimmInfo - > minClkDelay ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 16 : /* Burst Length Supported */
/******-******-******-*******
* bit3 | bit2 | bit1 | bit0 *
* * * * * * * - * * * * * * - * * * * * * - * * * * * * *
burst length = * 8 | 4 | 2 | 1 *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
If for example bit0 and bit2 are set , the burst
length supported are 1 and 4. */
dimmInfo - > burstLengthSupported = data [ i ] ;
# ifdef DEBUG
DP ( printf
( " Burst Length Supported: " ) ) ;
if ( dimmInfo - > burstLengthSupported & 0x01 )
DP ( printf ( " 1, " ) ) ;
if ( dimmInfo - > burstLengthSupported & 0x02 )
DP ( printf ( " 2, " ) ) ;
if ( dimmInfo - > burstLengthSupported & 0x04 )
DP ( printf ( " 4, " ) ) ;
if ( dimmInfo - > burstLengthSupported & 0x08 )
DP ( printf ( " 8, " ) ) ;
DP ( printf ( " Bit \n " ) ) ;
# endif
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 17 : /* Number Of Banks On Each Device */
dimmInfo - > numOfBanksOnEachDevice = data [ i ] ;
DP ( printf
( " Number Of Banks On Each Chip: %d \n " ,
dimmInfo - > numOfBanksOnEachDevice ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 18 : /* Suported Cas Latencies */
/* DDR:
* * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * *
* bit7 | bit6 | bit5 | bit4 | bit3 | bit2 | bit1 | bit0 *
* * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * *
CAS = * TBD | TBD | 3.5 | 3 | 2.5 | 2 | 1.5 | 1 *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
SDRAM :
* * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * *
* bit7 | bit6 | bit5 | bit4 | bit3 | bit2 | bit1 | bit0 *
* * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * - * * * * * * *
CAS = * TBD | 7 | 6 | 5 | 4 | 3 | 2 | 1 *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
dimmInfo - > suportedCasLatencies = data [ i ] ;
# ifdef DEBUG
DP ( printf
( " Suported Cas Latencies: (CL) " ) ) ;
if ( dimmInfo - > memoryType = = 0 ) { /* SDRAM */
for ( k = 0 ; k < = 7 ; k + + ) {
if ( dimmInfo - >
suportedCasLatencies & ( 1 < < k ) )
DP ( printf
( " %d, " ,
k + 1 ) ) ;
}
} else { /* DDR-RAM */
if ( dimmInfo - > suportedCasLatencies & 1 )
DP ( printf ( " 1, " ) ) ;
if ( dimmInfo - > suportedCasLatencies & 2 )
DP ( printf ( " 1.5, " ) ) ;
if ( dimmInfo - > suportedCasLatencies & 4 )
DP ( printf ( " 2, " ) ) ;
if ( dimmInfo - > suportedCasLatencies & 8 )
DP ( printf ( " 2.5, " ) ) ;
if ( dimmInfo - > suportedCasLatencies & 16 )
DP ( printf ( " 3, " ) ) ;
if ( dimmInfo - > suportedCasLatencies & 32 )
DP ( printf ( " 3.5, " ) ) ;
}
DP ( printf ( " \n " ) ) ;
# endif
/* Calculating MAX CAS latency */
for ( j = 7 ; j > 0 ; j - - ) {
if ( ( ( dimmInfo - >
suportedCasLatencies > > j ) & 0x1 ) = =
1 ) {
switch ( dimmInfo - > memoryType ) {
case DDR :
/* CAS latency 1, 1.5, 2, 2.5, 3, 3.5 */
switch ( j ) {
case 7 :
DP ( printf
( " Max. Cas Latencies (DDR): ERROR !!! \n " ) ) ;
dimmInfo - >
maxClSupported_DDR
=
DDR_CL_FAULT ;
hang ( ) ;
break ;
case 6 :
DP ( printf
( " Max. Cas Latencies (DDR): ERROR !!! \n " ) ) ;
dimmInfo - >
maxClSupported_DDR
=
DDR_CL_FAULT ;
hang ( ) ;
break ;
case 5 :
DP ( printf
( " Max. Cas Latencies (DDR): 3.5 clk's \n " ) ) ;
dimmInfo - >
maxClSupported_DDR
= DDR_CL_3_5 ;
break ;
case 4 :
DP ( printf
( " Max. Cas Latencies (DDR): 3 clk's \n " ) ) ;
dimmInfo - >
maxClSupported_DDR
= DDR_CL_3 ;
break ;
case 3 :
DP ( printf
( " Max. Cas Latencies (DDR): 2.5 clk's \n " ) ) ;
dimmInfo - >
maxClSupported_DDR
= DDR_CL_2_5 ;
break ;
case 2 :
DP ( printf
( " Max. Cas Latencies (DDR): 2 clk's \n " ) ) ;
dimmInfo - >
maxClSupported_DDR
= DDR_CL_2 ;
break ;
case 1 :
DP ( printf
( " Max. Cas Latencies (DDR): 1.5 clk's \n " ) ) ;
dimmInfo - >
maxClSupported_DDR
= DDR_CL_1_5 ;
break ;
}
/* ronen - in case we have a DIMM with minimumCycleTimeAtMaxCasLatancy
lower then our SDRAM cycle count , we won ' t be able to support this CAL
and we will have to use lower CAL . ( minus - means from 3.0 to 2.5 ) */
if ( ( dimmInfo - >
minimumCycleTimeAtMaxCasLatancy_LoP
<
CONFIG_SYS_DDR_SDRAM_CYCLE_COUNT_LOP )
| |
( ( dimmInfo - >
minimumCycleTimeAtMaxCasLatancy_LoP
= =
CONFIG_SYS_DDR_SDRAM_CYCLE_COUNT_LOP )
& & ( dimmInfo - >
minimumCycleTimeAtMaxCasLatancy_RoP
<
CONFIG_SYS_DDR_SDRAM_CYCLE_COUNT_ROP ) ) )
{
dimmInfo - >
maxClSupported_DDR
=
dimmInfo - >
maxClSupported_DDR
> > 1 ;
DP ( printf
( " *** Change actual Cas Latencies cause of minimumCycleTime n " ) ) ;
}
/* ronen - checkif the Dimm frequency compared to the Sysclock. */
if ( ( dimmInfo - >
minimumCycleTimeAtMaxCasLatancy_LoP
>
CONFIG_SYS_DDR_SDRAM_CYCLE_COUNT_LOP )
| |
( ( dimmInfo - >
minimumCycleTimeAtMaxCasLatancy_LoP
= =
CONFIG_SYS_DDR_SDRAM_CYCLE_COUNT_LOP )
& & ( dimmInfo - >
minimumCycleTimeAtMaxCasLatancy_RoP
>
CONFIG_SYS_DDR_SDRAM_CYCLE_COUNT_ROP ) ) )
{
printf ( " ********************************************************* \n " ) ;
printf ( " *** sysClock is higher than SDRAM's allowed frequency *** \n " ) ;
printf ( " ********************************************************* \n " ) ;
hang ( ) ;
}
dimmInfo - >
maxCASlatencySupported_LoP
=
1 +
( int ) ( 5 * j / 10 ) ;
if ( ( ( 5 * j ) % 10 ) ! = 0 )
dimmInfo - >
maxCASlatencySupported_RoP
= 5 ;
else
dimmInfo - >
maxCASlatencySupported_RoP
= 0 ;
DP ( printf
( " Max. Cas Latencies (DDR LoP.RoP Notation): %d.%d \n " ,
dimmInfo - >
maxCASlatencySupported_LoP ,
dimmInfo - >
maxCASlatencySupported_RoP ) ) ;
break ;
case SDRAM :
/* CAS latency 1, 2, 3, 4, 5, 6, 7 */
dimmInfo - > maxClSupported_SD = j ; /* Cas Latency DDR-RAM Coded */
DP ( printf
( " Max. Cas Latencies (SD): %d \n " ,
dimmInfo - >
maxClSupported_SD ) ) ;
dimmInfo - >
maxCASlatencySupported_LoP
= j ;
dimmInfo - >
maxCASlatencySupported_RoP
= 0 ;
DP ( printf
( " Max. Cas Latencies (DDR LoP.RoP Notation): %d.%d \n " ,
dimmInfo - >
maxCASlatencySupported_LoP ,
dimmInfo - >
maxCASlatencySupported_RoP ) ) ;
break ;
}
break ;
}
}
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 21 : /* Buffered Address And Control Inputs */
DP ( printf ( " \n Modul Attributes (SPD Byte 21): \n " ) ) ;
dimmInfo - > bufferedAddrAndControlInputs =
data [ i ] & BIT0 ;
dimmInfo - > registeredAddrAndControlInputs =
( data [ i ] & BIT1 ) > > 1 ;
dimmInfo - > onCardPLL = ( data [ i ] & BIT2 ) > > 2 ;
dimmInfo - > bufferedDQMBinputs = ( data [ i ] & BIT3 ) > > 3 ;
dimmInfo - > registeredDQMBinputs =
( data [ i ] & BIT4 ) > > 4 ;
dimmInfo - > differentialClockInput =
( data [ i ] & BIT5 ) > > 5 ;
dimmInfo - > redundantRowAddressing =
( data [ i ] & BIT6 ) > > 6 ;
# ifdef DEBUG
if ( dimmInfo - > bufferedAddrAndControlInputs = = 1 )
DP ( printf
( " - Buffered Address/Control Input: Yes \n " ) ) ;
else
DP ( printf
( " - Buffered Address/Control Input: No \n " ) ) ;
if ( dimmInfo - > registeredAddrAndControlInputs = = 1 )
DP ( printf
( " - Registered Address/Control Input: Yes \n " ) ) ;
else
DP ( printf
( " - Registered Address/Control Input: No \n " ) ) ;
if ( dimmInfo - > onCardPLL = = 1 )
DP ( printf
( " - On-Card PLL (clock): Yes \n " ) ) ;
else
DP ( printf
( " - On-Card PLL (clock): No \n " ) ) ;
if ( dimmInfo - > bufferedDQMBinputs = = 1 )
DP ( printf
( " - Bufferd DQMB Inputs: Yes \n " ) ) ;
else
DP ( printf
( " - Bufferd DQMB Inputs: No \n " ) ) ;
if ( dimmInfo - > registeredDQMBinputs = = 1 )
DP ( printf
( " - Registered DQMB Inputs: Yes \n " ) ) ;
else
DP ( printf
( " - Registered DQMB Inputs: No \n " ) ) ;
if ( dimmInfo - > differentialClockInput = = 1 )
DP ( printf
( " - Differential Clock Input: Yes \n " ) ) ;
else
DP ( printf
( " - Differential Clock Input: No \n " ) ) ;
if ( dimmInfo - > redundantRowAddressing = = 1 )
DP ( printf
( " - redundant Row Addressing: Yes \n " ) ) ;
else
DP ( printf
( " - redundant Row Addressing: No \n " ) ) ;
# endif
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 22 : /* Suported AutoPreCharge */
DP ( printf ( " \n Modul Attributes (SPD Byte 22): \n " ) ) ;
dimmInfo - > suportedEarlyRasPreCharge = data [ i ] & BIT0 ;
dimmInfo - > suportedAutoPreCharge =
( data [ i ] & BIT1 ) > > 1 ;
dimmInfo - > suportedPreChargeAll =
( data [ i ] & BIT2 ) > > 2 ;
dimmInfo - > suportedWrite1ReadBurst =
( data [ i ] & BIT3 ) > > 3 ;
dimmInfo - > suported5PercentLowVCC =
( data [ i ] & BIT4 ) > > 4 ;
dimmInfo - > suported5PercentUpperVCC =
( data [ i ] & BIT5 ) > > 5 ;
# ifdef DEBUG
if ( dimmInfo - > suportedEarlyRasPreCharge = = 1 )
DP ( printf
( " - Early Ras Precharge: Yes \n " ) ) ;
else
DP ( printf
( " - Early Ras Precharge: No \n " ) ) ;
if ( dimmInfo - > suportedAutoPreCharge = = 1 )
DP ( printf
( " - AutoPreCharge: Yes \n " ) ) ;
else
DP ( printf
( " - AutoPreCharge: No \n " ) ) ;
if ( dimmInfo - > suportedPreChargeAll = = 1 )
DP ( printf
( " - Precharge All: Yes \n " ) ) ;
else
DP ( printf
( " - Precharge All: No \n " ) ) ;
if ( dimmInfo - > suportedWrite1ReadBurst = = 1 )
DP ( printf
( " - Write 1/ReadBurst: Yes \n " ) ) ;
else
DP ( printf
( " - Write 1/ReadBurst: No \n " ) ) ;
if ( dimmInfo - > suported5PercentLowVCC = = 1 )
DP ( printf
( " - lower VCC tolerance: 5 Percent \n " ) ) ;
else
DP ( printf
( " - lower VCC tolerance: 10 Percent \n " ) ) ;
if ( dimmInfo - > suported5PercentUpperVCC = = 1 )
DP ( printf
( " - upper VCC tolerance: 5 Percent \n " ) ) ;
else
DP ( printf
( " - upper VCC tolerance: 10 Percent \n " ) ) ;
# endif
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 23 : /* Minimum Cycle Time At Maximum Cas Latancy Minus 1 (2nd highest CL) */
shift = ( dimmInfo - > memoryType = = DDR ) ? 4 : 2 ;
mult = ( dimmInfo - > memoryType = = DDR ) ? 10 : 25 ;
maskLeftOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0xf0 : 0xfc ;
maskRightOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0xf : 0x03 ;
leftOfPoint = ( data [ i ] & maskLeftOfPoint ) > > shift ;
rightOfPoint = ( data [ i ] & maskRightOfPoint ) * mult ;
dimmInfo - > minimumCycleTimeAtMaxCasLatancyMinus1_LoP =
leftOfPoint ;
dimmInfo - > minimumCycleTimeAtMaxCasLatancyMinus1_RoP =
rightOfPoint ;
DP ( printf ( " Minimum Cycle Time At 2nd highest CasLatancy (0 = Not supported): %d.%d [ns] \n " , leftOfPoint , rightOfPoint ) ) ; /*dimmInfo->minimumCycleTimeAtMaxCasLatancy */
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 24 : /* Clock To Data Out 2nd highest Cas Latency Value */
div = ( dimmInfo - > memoryType = = DDR ) ? 100 : 10 ;
time_tmp =
( ( ( data [ i ] & 0xf0 ) > > 4 ) * 10 ) +
( ( data [ i ] & 0x0f ) ) ;
leftOfPoint = time_tmp / div ;
rightOfPoint = time_tmp % div ;
dimmInfo - > clockToDataOutMinus1_LoP = leftOfPoint ;
dimmInfo - > clockToDataOutMinus1_RoP = rightOfPoint ;
DP ( printf
( " Clock To Data Out (2nd CL value): %d.%2d [ns] \n " ,
leftOfPoint , rightOfPoint ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 25 : /* Minimum Cycle Time At Maximum Cas Latancy Minus 2 (3rd highest CL) */
shift = ( dimmInfo - > memoryType = = DDR ) ? 4 : 2 ;
mult = ( dimmInfo - > memoryType = = DDR ) ? 10 : 25 ;
maskLeftOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0xf0 : 0xfc ;
maskRightOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0xf : 0x03 ;
leftOfPoint = ( data [ i ] & maskLeftOfPoint ) > > shift ;
rightOfPoint = ( data [ i ] & maskRightOfPoint ) * mult ;
dimmInfo - > minimumCycleTimeAtMaxCasLatancyMinus2_LoP =
leftOfPoint ;
dimmInfo - > minimumCycleTimeAtMaxCasLatancyMinus2_RoP =
rightOfPoint ;
DP ( printf ( " Minimum Cycle Time At 3rd highest CasLatancy (0 = Not supported): %d.%d [ns] \n " , leftOfPoint , rightOfPoint ) ) ; /*dimmInfo->minimumCycleTimeAtMaxCasLatancy */
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 26 : /* Clock To Data Out 3rd highest Cas Latency Value */
div = ( dimmInfo - > memoryType = = DDR ) ? 100 : 10 ;
time_tmp =
( ( ( data [ i ] & 0xf0 ) > > 4 ) * 10 ) +
( ( data [ i ] & 0x0f ) ) ;
leftOfPoint = time_tmp / div ;
rightOfPoint = time_tmp % div ;
dimmInfo - > clockToDataOutMinus2_LoP = leftOfPoint ;
dimmInfo - > clockToDataOutMinus2_RoP = rightOfPoint ;
DP ( printf
( " Clock To Data Out (3rd CL value): %d.%2d [ns] \n " ,
leftOfPoint , rightOfPoint ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 27 : /* Minimum Row Precharge Time */
shift = ( dimmInfo - > memoryType = = DDR ) ? 2 : 0 ;
maskLeftOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0xfc : 0xff ;
maskRightOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0x03 : 0x00 ;
leftOfPoint = ( ( data [ i ] & maskLeftOfPoint ) > > shift ) ;
rightOfPoint = ( data [ i ] & maskRightOfPoint ) * 25 ;
dimmInfo - > minRowPrechargeTime = ( ( leftOfPoint * 100 ) + rightOfPoint ) ; /* measured in n times 10ps Intervals */
trp_clocks =
( dimmInfo - > minRowPrechargeTime +
( tmemclk - 1 ) ) / tmemclk ;
DP ( printf
( " *** 1 clock cycle = %ld 10ps intervalls = %ld.%ld ns**** \n " ,
tmemclk , tmemclk / 100 , tmemclk % 100 ) ) ;
DP ( printf
( " Minimum Row Precharge Time [ns]: %d.%2d = in Clk cycles %d \n " ,
leftOfPoint , rightOfPoint , trp_clocks ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 28 : /* Minimum Row Active to Row Active Time */
shift = ( dimmInfo - > memoryType = = DDR ) ? 2 : 0 ;
maskLeftOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0xfc : 0xff ;
maskRightOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0x03 : 0x00 ;
leftOfPoint = ( ( data [ i ] & maskLeftOfPoint ) > > shift ) ;
rightOfPoint = ( data [ i ] & maskRightOfPoint ) * 25 ;
dimmInfo - > minRowActiveRowActiveDelay = ( ( leftOfPoint * 100 ) + rightOfPoint ) ; /* measured in 100ns Intervals */
trrd_clocks =
( dimmInfo - > minRowActiveRowActiveDelay +
( tmemclk - 1 ) ) / tmemclk ;
DP ( printf
( " Minimum Row Active -To- Row Active Delay [ns]: %d.%2d = in Clk cycles %d \n " ,
leftOfPoint , rightOfPoint , trp_clocks ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 29 : /* Minimum Ras-To-Cas Delay */
shift = ( dimmInfo - > memoryType = = DDR ) ? 2 : 0 ;
maskLeftOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0xfc : 0xff ;
maskRightOfPoint =
( dimmInfo - > memoryType = = DDR ) ? 0x03 : 0x00 ;
leftOfPoint = ( ( data [ i ] & maskLeftOfPoint ) > > shift ) ;
rightOfPoint = ( data [ i ] & maskRightOfPoint ) * 25 ;
dimmInfo - > minRowActiveRowActiveDelay = ( ( leftOfPoint * 100 ) + rightOfPoint ) ; /* measured in 100ns Intervals */
trcd_clocks =
( dimmInfo - > minRowActiveRowActiveDelay +
( tmemclk - 1 ) ) / tmemclk ;
DP ( printf
( " Minimum Ras-To-Cas Delay [ns]: %d.%2d = in Clk cycles %d \n " ,
leftOfPoint , rightOfPoint , trp_clocks ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 30 : /* Minimum Ras Pulse Width */
dimmInfo - > minRasPulseWidth = data [ i ] ;
tras_clocks =
( NSto10PS ( data [ i ] ) +
( tmemclk - 1 ) ) / tmemclk ;
DP ( printf
( " Minimum Ras Pulse Width [ns]: %d = in Clk cycles %d \n " ,
dimmInfo - > minRasPulseWidth , tras_clocks ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 31 : /* Module Bank Density */
dimmInfo - > moduleBankDensity = data [ i ] ;
DP ( printf
( " Module Bank Density: %d \n " ,
dimmInfo - > moduleBankDensity ) ) ;
# ifdef DEBUG
DP ( printf
( " *** Offered Densities (more than 1 = Multisize-Module): " ) ) ;
{
if ( dimmInfo - > moduleBankDensity & 1 )
DP ( printf ( " 4MB, " ) ) ;
if ( dimmInfo - > moduleBankDensity & 2 )
DP ( printf ( " 8MB, " ) ) ;
if ( dimmInfo - > moduleBankDensity & 4 )
DP ( printf ( " 16MB, " ) ) ;
if ( dimmInfo - > moduleBankDensity & 8 )
DP ( printf ( " 32MB, " ) ) ;
if ( dimmInfo - > moduleBankDensity & 16 )
DP ( printf ( " 64MB, " ) ) ;
if ( dimmInfo - > moduleBankDensity & 32 )
DP ( printf ( " 128MB, " ) ) ;
if ( ( dimmInfo - > moduleBankDensity & 64 )
| | ( dimmInfo - > moduleBankDensity & 128 ) ) {
DP ( printf ( " ERROR, " ) ) ;
hang ( ) ;
}
}
DP ( printf ( " \n " ) ) ;
# endif
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 32 : /* Address And Command Setup Time (measured in ns/1000) */
sign = 1 ;
switch ( dimmInfo - > memoryType ) {
case DDR :
time_tmp =
( ( ( data [ i ] & 0xf0 ) > > 4 ) * 10 ) +
( ( data [ i ] & 0x0f ) ) ;
leftOfPoint = time_tmp / 100 ;
rightOfPoint = time_tmp % 100 ;
break ;
case SDRAM :
leftOfPoint = ( data [ i ] & 0xf0 ) > > 4 ;
if ( leftOfPoint > 7 ) {
leftOfPoint = data [ i ] & 0x70 > > 4 ;
sign = - 1 ;
}
rightOfPoint = ( data [ i ] & 0x0f ) ;
break ;
}
dimmInfo - > addrAndCommandSetupTime =
( leftOfPoint * 100 + rightOfPoint ) * sign ;
DP ( printf
( " Address And Command Setup Time [ns]: %d.%d \n " ,
sign * leftOfPoint , rightOfPoint ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 33 : /* Address And Command Hold Time */
sign = 1 ;
switch ( dimmInfo - > memoryType ) {
case DDR :
time_tmp =
( ( ( data [ i ] & 0xf0 ) > > 4 ) * 10 ) +
( ( data [ i ] & 0x0f ) ) ;
leftOfPoint = time_tmp / 100 ;
rightOfPoint = time_tmp % 100 ;
break ;
case SDRAM :
leftOfPoint = ( data [ i ] & 0xf0 ) > > 4 ;
if ( leftOfPoint > 7 ) {
leftOfPoint = data [ i ] & 0x70 > > 4 ;
sign = - 1 ;
}
rightOfPoint = ( data [ i ] & 0x0f ) ;
break ;
}
dimmInfo - > addrAndCommandHoldTime =
( leftOfPoint * 100 + rightOfPoint ) * sign ;
DP ( printf
( " Address And Command Hold Time [ns]: %d.%d \n " ,
sign * leftOfPoint , rightOfPoint ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 34 : /* Data Input Setup Time */
sign = 1 ;
switch ( dimmInfo - > memoryType ) {
case DDR :
time_tmp =
( ( ( data [ i ] & 0xf0 ) > > 4 ) * 10 ) +
( ( data [ i ] & 0x0f ) ) ;
leftOfPoint = time_tmp / 100 ;
rightOfPoint = time_tmp % 100 ;
break ;
case SDRAM :
leftOfPoint = ( data [ i ] & 0xf0 ) > > 4 ;
if ( leftOfPoint > 7 ) {
leftOfPoint = data [ i ] & 0x70 > > 4 ;
sign = - 1 ;
}
rightOfPoint = ( data [ i ] & 0x0f ) ;
break ;
}
dimmInfo - > dataInputSetupTime =
( leftOfPoint * 100 + rightOfPoint ) * sign ;
DP ( printf
( " Data Input Setup Time [ns]: %d.%d \n " ,
sign * leftOfPoint , rightOfPoint ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
case 35 : /* Data Input Hold Time */
sign = 1 ;
switch ( dimmInfo - > memoryType ) {
case DDR :
time_tmp =
( ( ( data [ i ] & 0xf0 ) > > 4 ) * 10 ) +
( ( data [ i ] & 0x0f ) ) ;
leftOfPoint = time_tmp / 100 ;
rightOfPoint = time_tmp % 100 ;
break ;
case SDRAM :
leftOfPoint = ( data [ i ] & 0xf0 ) > > 4 ;
if ( leftOfPoint > 7 ) {
leftOfPoint = data [ i ] & 0x70 > > 4 ;
sign = - 1 ;
}
rightOfPoint = ( data [ i ] & 0x0f ) ;
break ;
}
dimmInfo - > dataInputHoldTime =
( leftOfPoint * 100 + rightOfPoint ) * sign ;
DP ( printf
( " Data Input Hold Time [ns]: %d.%d \n \n " ,
sign * leftOfPoint , rightOfPoint ) ) ;
break ;
/*------------------------------------------------------------------------------------------------------------------------------*/
}
}
/* calculating the sdram density */
for ( i = 0 ;
i < dimmInfo - > numOfRowAddresses + dimmInfo - > numOfColAddresses ;
i + + ) {
density = density * 2 ;
}
dimmInfo - > deviceDensity = density * dimmInfo - > numOfBanksOnEachDevice *
dimmInfo - > sdramWidth ;
dimmInfo - > numberOfDevices =
( dimmInfo - > dataWidth / dimmInfo - > sdramWidth ) *
dimmInfo - > numOfModuleBanks ;
devicesForErrCheck =
( dimmInfo - > dataWidth - 64 ) / dimmInfo - > sdramWidth ;
if ( ( dimmInfo - > errorCheckType = = 0x1 )
| | ( dimmInfo - > errorCheckType = = 0x2 )
| | ( dimmInfo - > errorCheckType = = 0x3 ) ) {
dimmInfo - > size =
( dimmInfo - > deviceDensity / 8 ) *
( dimmInfo - > numberOfDevices -
/* ronen on the 1G dimm we get wrong value. (was devicesForErrCheck) */
dimmInfo - > numberOfDevices / 8 ) ;
} else {
dimmInfo - > size =
( dimmInfo - > deviceDensity / 8 ) *
dimmInfo - > numberOfDevices ;
}
/* compute the module DRB size */
tmp = ( 1 < <
( dimmInfo - > numOfRowAddresses + dimmInfo - > numOfColAddresses ) ) ;
tmp * = dimmInfo - > numOfModuleBanks ;
tmp * = dimmInfo - > sdramWidth ;
tmp = tmp > > 24 ; /* div by 0x4000000 (64M) */
dimmInfo - > drb_size = ( uchar ) tmp ;
DP ( printf ( " Module DRB size (n*64Mbit): %d \n " , dimmInfo - > drb_size ) ) ;
/* try a CAS latency of 3 first... */
/* bit 1 is CL2, bit 2 is CL3 */
supp_cal = ( dimmInfo - > suportedCasLatencies & 0x6 ) > > 1 ;
cal_val = 0 ;
if ( supp_cal & 3 ) {
if ( NS10to10PS ( data [ 9 ] ) < = tmemclk )
cal_val = 3 ;
}
/* then 2... */
if ( supp_cal & 2 ) {
if ( NS10to10PS ( data [ 23 ] ) < = tmemclk )
cal_val = 2 ;
}
DP ( printf ( " cal_val = %d \n " , cal_val ) ) ;
/* bummer, did't work... */
if ( cal_val = = 0 ) {
DP ( printf ( " Couldn't find a good CAS latency \n " ) ) ;
hang ( ) ;
return 0 ;
}
return true ;
# endif
}
/* sets up the GT properly with information passed in */
int setup_sdram ( AUX_MEM_DIMM_INFO * info )
{
ulong tmp , check ;
ulong tmp_sdram_mode = 0 ; /* 0x141c */
ulong tmp_dunit_control_low = 0 ; /* 0x1404 */
int i ;
/* added 8/21/2003 P. Marchese */
unsigned int sdram_config_reg ;
/* added 10/10/2003 P. Marchese */
ulong sdram_chip_size ;
/* sanity checking */
if ( ! info - > numOfModuleBanks ) {
printf ( " setup_sdram called with 0 banks \n " ) ;
return 1 ;
}
/* delay line */
set_dfcdlInit ( ) ; /* may be its not needed */
DP ( printf ( " Delay line set done \n " ) ) ;
/* set SDRAM mode NOP */ /* To_do check it */
GT_REG_WRITE ( SDRAM_OPERATION , 0x5 ) ;
while ( GTREGREAD ( SDRAM_OPERATION ) ! = 0 ) {
DP ( printf
( " \n *** SDRAM_OPERATION 1418: Module still busy ... please wait... *** \n " ) ) ;
}
/* SDRAM configuration */
/* added 8/21/2003 P. Marchese */
/* code allows usage of registered DIMMS */
/* figure out the memory refresh internal */
switch ( info - > RefreshInterval ) {
case 0x0 :
case 0x80 : /* refresh period is 15.625 usec */
sdram_config_reg =
( unsigned int ) ( ( ( float ) 15.625 * ( float ) CONFIG_SYS_BUS_HZ )
/ ( float ) 1000000.0 ) ;
break ;
case 0x1 :
case 0x81 : /* refresh period is 3.9 usec */
sdram_config_reg =
( unsigned int ) ( ( ( float ) 3.9 * ( float ) CONFIG_SYS_BUS_HZ ) /
( float ) 1000000.0 ) ;
break ;
case 0x2 :
case 0x82 : /* refresh period is 7.8 usec */
sdram_config_reg =
( unsigned int ) ( ( ( float ) 7.8 * ( float ) CONFIG_SYS_BUS_HZ ) /
( float ) 1000000.0 ) ;
break ;
case 0x3 :
case 0x83 : /* refresh period is 31.3 usec */
sdram_config_reg =
( unsigned int ) ( ( ( float ) 31.3 * ( float ) CONFIG_SYS_BUS_HZ ) /
( float ) 1000000.0 ) ;
break ;
case 0x4 :
case 0x84 : /* refresh period is 62.5 usec */
sdram_config_reg =
( unsigned int ) ( ( ( float ) 62.5 * ( float ) CONFIG_SYS_BUS_HZ ) /
( float ) 1000000.0 ) ;
break ;
case 0x5 :
case 0x85 : /* refresh period is 125 usec */
sdram_config_reg =
( unsigned int ) ( ( ( float ) 125 * ( float ) CONFIG_SYS_BUS_HZ ) /
( float ) 1000000.0 ) ;
break ;
default : /* refresh period undefined */
printf ( " DRAM refresh period is unknown! \n " ) ;
printf ( " Aborting DRAM setup with an error \n " ) ;
hang ( ) ;
break ;
}
DP ( printf ( " calculated refresh interval %0x \n " , sdram_config_reg ) ) ;
/* make sure the refresh value is only 14 bits */
if ( sdram_config_reg > 0x1fff )
sdram_config_reg = 0x1fff ;
DP ( printf ( " adjusted refresh interval %0x \n " , sdram_config_reg ) ) ;
/* we want physical bank interleaving and */
/* virtual bank interleaving enabled so do nothing */
/* since these bits need to be zero to enable the interleaving */
/* registered DRAM ? */
if ( info - > registeredAddrAndControlInputs = = 1 ) {
/* it's registered DRAM, so set the reg. DRAM bit */
sdram_config_reg = sdram_config_reg | BIT17 ;
DP ( printf ( " Enabling registered DRAM bit \n " ) ) ;
}
/* turn on DRAM ECC? */
# ifdef CONFIG_MV64460_ECC
if ( info - > errorCheckType = = 0x2 ) {
/* DRAM has ECC, so turn it on */
sdram_config_reg = sdram_config_reg | BIT18 ;
DP ( printf ( " Enabling ECC \n " ) ) ;
}
# endif
/* set the data DQS pin configuration */
switch ( info - > sdramWidth ) {
case 0x4 : /* memory is x4 */
sdram_config_reg = sdram_config_reg | BIT20 | BIT21 ;
DP ( printf ( " Data DQS pins set for 16 pins \n " ) ) ;
break ;
case 0x8 : /* memory is x8 or x16 */
case 0x10 :
sdram_config_reg = sdram_config_reg | BIT21 ;
DP ( printf ( " Data DQS pins set for 8 pins \n " ) ) ;
break ;
case 0x20 : /* memory is x32 */
/* both bits are cleared for x32 so nothing to do */
DP ( printf ( " Data DQS pins set for 2 pins \n " ) ) ;
break ;
default : /* memory width unsupported */
printf ( " DRAM chip width is unknown! \n " ) ;
printf ( " Aborting DRAM setup with an error \n " ) ;
hang ( ) ;
break ;
}
/*ronen db64460 */
/* perform read buffer assignments */
/* we are going to use the Power-up defaults */
/* bit 27 = PCI bus #0 = buffer 0 */
/* bit 28 = PCI bus #1 = buffer 0 */
/* bit 29 = MPSC = buffer 0 */
/* bit 30 = IDMA = buffer 0 */
/* bit 31 = Gigabit = buffer 0 */
sdram_config_reg = sdram_config_reg | 0x58000000 ;
sdram_config_reg = sdram_config_reg & 0xffffff00 ;
/* bit 14 FBSplit = FCRAM controller bsplit enable. */
/* bit 15 vw = FCRAM Variable write length enable. */
/* bit 16 DType = Dram Type (0 = FCRAM,1 = Standard) */
sdram_config_reg = sdram_config_reg | BIT14 | BIT15 ;
/* write the value into the SDRAM configuration register */
GT_REG_WRITE ( SDRAM_CONFIG , sdram_config_reg ) ;
DP ( printf ( " sdram_conf 0x1400: %08x \n " , GTREGREAD ( SDRAM_CONFIG ) ) ) ;
/* SDRAM open pages control keep open as much as I can */
GT_REG_WRITE ( SDRAM_OPEN_PAGES_CONTROL , 0x0 ) ;
DP ( printf
( " sdram_open_pages_controll 0x1414: %08x \n " ,
GTREGREAD ( SDRAM_OPEN_PAGES_CONTROL ) ) ) ;
/* SDRAM D_UNIT_CONTROL_LOW 0x1404 */
tmp = ( GTREGREAD ( D_UNIT_CONTROL_LOW ) & 0x01 ) ; /* Clock Domain Sync from power on reset */
if ( tmp = = 0 )
DP ( printf ( " Core Signals are sync (by HW-Setting)!!! \n " ) ) ;
else
DP ( printf
( " Core Signals syncs. are bypassed (by HW-Setting)!!! \n " ) ) ;
/* SDRAM set CAS Latency according to SPD information */
switch ( info - > memoryType ) {
case SDRAM :
printf ( " ### SD-RAM not supported !!! \n " ) ;
printf ( " Aborting!!! \n " ) ;
hang ( ) ;
/* ToDo fill SD-RAM if needed !!!!! */
break ;
/* Calculate the settings for SDRAM mode and Dunit control low registers */
/* Values set according to technical bulletin TB-92 rev. c */
case DDR :
DP ( printf ( " ### SET-CL for DDR-RAM \n " ) ) ;
/* ronen db64460 - change the tmp_dunit_control_low setting!!! */
switch ( info - > maxClSupported_DDR ) {
case DDR_CL_3 :
tmp_sdram_mode = 0x32 ; /* CL=3 Burstlength = 4 */
if ( tmp = = 1 ) { /* clocks sync */
if ( info - > registeredAddrAndControlInputs = = 1 ) /* registerd DDR SDRAM? */
tmp_dunit_control_low = 0x05110051 ;
else
tmp_dunit_control_low = 0x24110051 ;
DP ( printf
( " Max. CL is 3 CLKs 0x141c= %08lx, 0x1404 = %08lx \n " ,
tmp_sdram_mode , tmp_dunit_control_low ) ) ;
printf ( " Warnning: DRAM ClkSync was never tested(db64460)!!!!! \n " ) ;
} else { /* clk sync. bypassed */
if ( info - > registeredAddrAndControlInputs = = 1 ) /* registerd DDR SDRAM? */
tmp_dunit_control_low = 0xC5000540 ;
else
tmp_dunit_control_low = 0xC4000540 ;
DP ( printf
( " Max. CL is 3 CLKs 0x141c= %08lx, 0x1404 = %08lx \n " ,
tmp_sdram_mode , tmp_dunit_control_low ) ) ;
}
break ;
case DDR_CL_2_5 :
tmp_sdram_mode = 0x62 ; /* CL=2.5 Burstlength = 4 */
if ( tmp = = 1 ) { /* clocks sync */
if ( info - > registeredAddrAndControlInputs = = 1 ) /* registerd DDR SDRAM? */
tmp_dunit_control_low = 0x25110051 ;
else
tmp_dunit_control_low = 0x24110051 ;
DP ( printf
( " Max. CL is 2.5 CLKs 0x141c= %08lx, 0x1404 = %08lx \n " ,
tmp_sdram_mode , tmp_dunit_control_low ) ) ;
printf ( " Warnning: DRAM ClkSync was never tested(db64460)!!!!! \n " ) ;
} else { /* clk sync. bypassed */
if ( info - > registeredAddrAndControlInputs = = 1 ) { /* registerd DDR SDRAM? */
tmp_dunit_control_low = 0xC5000540 ;
/* printf("CL = 2.5, Clock Unsync'ed, Dunit Control Low register setting undefined\n");1 */
/* printf("Aborting!!!\n");1 */
/* hang();1 */
} else
tmp_dunit_control_low = 0xC4000540 ;
DP ( printf
( " Max. CL is 2.5 CLKs 0x141c= %08lx, 0x1404 = %08lx \n " ,
tmp_sdram_mode , tmp_dunit_control_low ) ) ;
}
break ;
case DDR_CL_2 :
tmp_sdram_mode = 0x22 ; /* CL=2 Burstlength = 4 */
if ( tmp = = 1 ) { /* clocks sync */
if ( info - > registeredAddrAndControlInputs = = 1 ) /* registerd DDR SDRAM? */
tmp_dunit_control_low = 0x04110051 ;
else
tmp_dunit_control_low = 0x03110051 ;
DP ( printf
( " Max. CL is 2 CLKs 0x141c= %08lx, 0x1404 = %08lx \n " ,
tmp_sdram_mode , tmp_dunit_control_low ) ) ;
printf ( " Warnning: DRAM ClkSync was never tested(db64460)!!!!! \n " ) ;
} else { /* clk sync. bypassed */
if ( info - > registeredAddrAndControlInputs = = 1 ) { /* registerd DDR SDRAM? */
/*printf("CL = 2, Clock Unsync'ed, Dunit Control Low register setting undefined\n");1 */
/*printf("Aborting!!!\n");1 */
/*hang();1 */
tmp_dunit_control_low = 0xC4000540 ;
} else
tmp_dunit_control_low = 0xC3000540 ; ;
DP ( printf
( " Max. CL is 2 CLKs 0x141c= %08lx, 0x1404 = %08lx \n " ,
tmp_sdram_mode , tmp_dunit_control_low ) ) ;
}
break ;
case DDR_CL_1_5 :
tmp_sdram_mode = 0x52 ; /* CL=1.5 Burstlength = 4 */
if ( tmp = = 1 ) { /* clocks sync */
if ( info - > registeredAddrAndControlInputs = = 1 ) /* registerd DDR SDRAM? */
tmp_dunit_control_low = 0x24110051 ;
else
tmp_dunit_control_low = 0x23110051 ;
DP ( printf
( " Max. CL is 1.5 CLKs 0x141c= %08lx, 0x1404 = %08lx \n " ,
tmp_sdram_mode , tmp_dunit_control_low ) ) ;
printf ( " Warnning: DRAM ClkSync was never tested(db64460)!!!!! \n " ) ;
} else { /* clk sync. bypassed */
if ( info - > registeredAddrAndControlInputs = = 1 ) { /* registerd DDR SDRAM? */
/*printf("CL = 1.5, Clock Unsync'ed, Dunit Control Low register setting undefined\n");1 */
/*printf("Aborting!!!\n");1 */
/*hang();1 */
tmp_dunit_control_low = 0xC4000540 ;
} else
tmp_dunit_control_low = 0xC3000540 ;
DP ( printf
( " Max. CL is 1.5 CLKs 0x141c= %08lx, 0x1404 = %08lx \n " ,
tmp_sdram_mode , tmp_dunit_control_low ) ) ;
}
break ;
default :
printf ( " Max. CL is out of range %d \n " ,
info - > maxClSupported_DDR ) ;
hang ( ) ;
break ;
} /* end DDR switch */
break ;
} /* end CL switch */
/* Write results of CL detection procedure */
/* set SDRAM mode reg. 0x141c */
GT_REG_WRITE ( SDRAM_MODE , tmp_sdram_mode ) ;
/* set SDRAM mode SetCommand 0x1418 */
GT_REG_WRITE ( SDRAM_OPERATION , 0x3 ) ;
while ( GTREGREAD ( SDRAM_OPERATION ) ! = 0 ) {
DP ( printf
( " \n *** SDRAM_OPERATION 0x1418 after SDRAM_MODE: Module still busy ... please wait... *** \n " ) ) ;
}
/* SDRAM D_UNIT_CONTROL_LOW 0x1404 */
GT_REG_WRITE ( D_UNIT_CONTROL_LOW , tmp_dunit_control_low ) ;
/* set SDRAM mode SetCommand 0x1418 */
GT_REG_WRITE ( SDRAM_OPERATION , 0x3 ) ;
while ( GTREGREAD ( SDRAM_OPERATION ) ! = 0 ) {
DP ( printf
( " \n *** SDRAM_OPERATION 1418 after D_UNIT_CONTROL_LOW: Module still busy ... please wait... *** \n " ) ) ;
}
/*------------------------------------------------------------------------------ */
/* bank parameters */
/* SDRAM address decode register 0x1410 */
/* program this with the default value */
tmp = 0x02 ; /* power-up default address select decoding value */
DP ( printf ( " drb_size (n*64Mbit): %d \n " , info - > drb_size ) ) ;
/* figure out the DRAM chip size */
sdram_chip_size =
( 1 < < ( info - > numOfRowAddresses + info - > numOfColAddresses ) ) ;
sdram_chip_size * = info - > sdramWidth ;
sdram_chip_size * = 4 ;
DP ( printf ( " computed sdram chip size is %#lx \n " , sdram_chip_size ) ) ;
/* divide sdram chip size by 64 Mbits */
sdram_chip_size = sdram_chip_size / 0x4000000 ;
switch ( sdram_chip_size ) {
case 1 : /* 64 Mbit */
case 2 : /* 128 Mbit */
DP ( printf ( " RAM-Device_size 64Mbit or 128Mbit) \n " ) ) ;
tmp | = ( 0x00 < < 4 ) ;
break ;
case 4 : /* 256 Mbit */
case 8 : /* 512 Mbit */
DP ( printf ( " RAM-Device_size 256Mbit or 512Mbit) \n " ) ) ;
tmp | = ( 0x01 < < 4 ) ;
break ;
case 16 : /* 1 Gbit */
case 32 : /* 2 Gbit */
DP ( printf ( " RAM-Device_size 1Gbit or 2Gbit) \n " ) ) ;
tmp | = ( 0x02 < < 4 ) ;
break ;
default :
printf ( " Error in dram size calculation \n " ) ;
printf ( " RAM-Device_size is unsupported \n " ) ;
hang ( ) ;
}
/* SDRAM address control */
GT_REG_WRITE ( SDRAM_ADDR_CONTROL , tmp ) ;
DP ( printf
( " setting up sdram address control (0x1410) with: %08lx \n " ,
tmp ) ) ;
/* ------------------------------------------------------------------------------ */
/* same settings for registerd & non-registerd DDR SDRAM */
DP ( printf
( " setting up sdram_timing_control_low (0x1408) with: %08x \n " ,
0x01501220 ) ) ;
/*ronen db64460 */
GT_REG_WRITE ( SDRAM_TIMING_CONTROL_LOW , 0x01501220 ) ;
/* ------------------------------------------------------------------------------ */
/* SDRAM configuration */
tmp = GTREGREAD ( SDRAM_CONFIG ) ;
if ( info - > registeredAddrAndControlInputs
| | info - > registeredDQMBinputs ) {
tmp | = ( 1 < < 17 ) ;
DP ( printf
( " SPD says: registered Addr. and Cont.: %d; registered DQMBinputs: %d \n " ,
info - > registeredAddrAndControlInputs ,
info - > registeredDQMBinputs ) ) ;
}
/* Use buffer 1 to return read data to the CPU
* Page 426 MV6indent : Standard input : 1464 : Warning : old style assignment ambiguity in " =* " . Assuming " = * "
indent : Standard input : 1465 : Warning : old style assignment ambiguity in " =* " . Assuming " = * "
4460 */
tmp | = ( 1 < < 26 ) ;
DP ( printf
( " Before Buffer assignment - sdram_conf (0x1400): %08x \n " ,
GTREGREAD ( SDRAM_CONFIG ) ) ) ;
DP ( printf
( " After Buffer assignment - sdram_conf (0x1400): %08x \n " ,
GTREGREAD ( SDRAM_CONFIG ) ) ) ;
/* SDRAM timing To_do: */
/* ------------------------------------------------------------------------------ */
/* ronen db64460 */
DP ( printf
( " setting up sdram_timing_control_high (0x140c) with: %08x \n " ,
0xc ) ) ;
GT_REG_WRITE ( SDRAM_TIMING_CONTROL_HIGH , 0xc ) ;
DP ( printf
( " setting up sdram address pads control (0x14c0) with: %08x \n " ,
0x7d5014a ) ) ;
GT_REG_WRITE ( SDRAM_ADDR_CTRL_PADS_CALIBRATION , 0x7d5014a ) ;
DP ( printf
( " setting up sdram data pads control (0x14c4) with: %08x \n " ,
0x7d5014a ) ) ;
GT_REG_WRITE ( SDRAM_DATA_PADS_CALIBRATION , 0x7d5014a ) ;
/* ------------------------------------------------------------------------------ */
/* set the SDRAM configuration for each bank */
/* for (i = info->slot * 2; i < ((info->slot * 2) + info->banks); i++) */
{
i = info - > slot ;
DP ( printf
( " \n *** Running a MRS cycle for bank %d *** \n " , i ) ) ;
/* map the bank */
memory_map_bank ( i , 0 , GB / 4 ) ;
/* set SDRAM mode */ /* To_do check it */
GT_REG_WRITE ( SDRAM_OPERATION , 0x3 ) ;
check = GTREGREAD ( SDRAM_OPERATION ) ;
DP ( printf
( " \n *** SDRAM_OPERATION 1418 (0 = Normal Operation) = %08lx *** \n " ,
check ) ) ;
/* switch back to normal operation mode */
GT_REG_WRITE ( SDRAM_OPERATION , 0 ) ;
check = GTREGREAD ( SDRAM_OPERATION ) ;
DP ( printf
( " \n *** SDRAM_OPERATION 1418 (0 = Normal Operation) = %08lx *** \n " ,
check ) ) ;
/* unmap the bank */
memory_map_bank ( i , 0 , 0 ) ;
}
return 0 ;
}
/*
* Check memory range for valid RAM . A simple memory test determines
* the actually available RAM size between addresses ` base ' and
* ` base + maxsize ' . Some ( not all ) hardware errors are detected :
* - short between address lines
* - short between data lines
*/
long int dram_size ( long int * base , long int maxsize )
{
volatile long int * addr , * b = base ;
long int cnt , val , save1 , save2 ;
# define STARTVAL (1<<20) /* start test at 1M */
for ( cnt = STARTVAL / sizeof ( long ) ; cnt < maxsize / sizeof ( long ) ;
cnt < < = 1 ) {
addr = base + cnt ; /* pointer arith! */
save1 = * addr ; /* save contents of addr */
save2 = * b ; /* save contents of base */
* addr = cnt ; /* write cnt to addr */
* b = 0 ; /* put null at base */
/* check at base address */
if ( ( * b ) ! = 0 ) {
* addr = save1 ; /* restore *addr */
* b = save2 ; /* restore *b */
return ( 0 ) ;
}
val = * addr ; /* read *addr */
val = * addr ; /* read *addr */
* addr = save1 ;
* b = save2 ;
if ( val ! = cnt ) {
DP ( printf
( " Found %08x at Address %08x (failure) \n " ,
( unsigned int ) val , ( unsigned int ) addr ) ) ;
/* fix boundary condition.. STARTVAL means zero */
if ( cnt = = STARTVAL / sizeof ( long ) )
cnt = 0 ;
return ( cnt * sizeof ( long ) ) ;
}
}
return maxsize ;
}
/* ------------------------------------------------------------------------- */
/* ppcboot interface function to SDRAM init - this is where all the
* controlling logic happens */
phys_size_t initdram ( int board_type )
{
int s0 = 0 , s1 = 0 ;
int checkbank [ 4 ] = { [ 0 . . . 3 ] = 0 } ;
ulong realsize , total , check ;
AUX_MEM_DIMM_INFO dimmInfo1 ;
AUX_MEM_DIMM_INFO dimmInfo2 ;
int nhr , bank_no ;
ulong dest , memSpaceAttr ;
/* first, use the SPD to get info about the SDRAM/ DDRRAM */
/* check the NHR bit and skip mem init if it's already done */
nhr = get_hid0 ( ) & ( 1 < < 16 ) ;
if ( nhr ) {
printf ( " Skipping SD- DDRRAM setup due to NHR bit being set \n " ) ;
} else {
/* DIMM0 */
s0 = check_dimm ( 0 , & dimmInfo1 ) ;
/* DIMM1 */
s1 = check_dimm ( 1 , & dimmInfo2 ) ;
memory_map_bank ( 0 , 0 , 0 ) ;
memory_map_bank ( 1 , 0 , 0 ) ;
memory_map_bank ( 2 , 0 , 0 ) ;
memory_map_bank ( 3 , 0 , 0 ) ;
/* ronen check correct set of DIMMS */
if ( dimmInfo1 . numOfModuleBanks & & dimmInfo2 . numOfModuleBanks ) {
if ( dimmInfo1 . errorCheckType ! =
dimmInfo2 . errorCheckType )
printf ( " ***WARNNING***!!!! different ECC support of the DIMMS \n " ) ;
if ( dimmInfo1 . maxClSupported_DDR ! =
dimmInfo2 . maxClSupported_DDR )
printf ( " ***WARNNING***!!!! different CAL setting of the DIMMS \n " ) ;
if ( dimmInfo1 . registeredAddrAndControlInputs ! =
dimmInfo2 . registeredAddrAndControlInputs )
printf ( " ***WARNNING***!!!! different Registration setting of the DIMMS \n " ) ;
}
if ( dimmInfo1 . numOfModuleBanks & & setup_sdram ( & dimmInfo1 ) ) {
printf ( " Setup for DIMM1 failed. \n " ) ;
}
if ( dimmInfo2 . numOfModuleBanks & & setup_sdram ( & dimmInfo2 ) ) {
printf ( " Setup for DIMM2 failed. \n " ) ;
}
/* set the NHR bit */
set_hid0 ( get_hid0 ( ) | ( 1 < < 16 ) ) ;
}
/* next, size the SDRAM banks */
realsize = total = 0 ;
check = GB / 4 ;
if ( dimmInfo1 . numOfModuleBanks > 0 ) {
checkbank [ 0 ] = 1 ;
}
if ( dimmInfo1 . numOfModuleBanks > 1 ) {
checkbank [ 1 ] = 1 ;
}
if ( dimmInfo1 . numOfModuleBanks > 2 )
printf ( " Error, SPD claims DIMM1 has >2 banks \n " ) ;
printf ( " -- DIMM1 has %d banks \n " , dimmInfo1 . numOfModuleBanks ) ;
if ( dimmInfo2 . numOfModuleBanks > 0 ) {
checkbank [ 2 ] = 1 ;
}
if ( dimmInfo2 . numOfModuleBanks > 1 ) {
checkbank [ 3 ] = 1 ;
}
if ( dimmInfo2 . numOfModuleBanks > 2 )
printf ( " Error, SPD claims DIMM2 has >2 banks \n " ) ;
printf ( " -- DIMM2 has %d banks \n " , dimmInfo2 . numOfModuleBanks ) ;
for ( bank_no = 0 ; bank_no < CONFIG_SYS_DRAM_BANKS ; bank_no + + ) {
/* skip over banks that are not populated */
if ( ! checkbank [ bank_no ] )
continue ;
/* ronen - realsize = dram_size((long int *)total, check); */
if ( bank_no = = 0 | | bank_no = = 1 ) {
if ( checkbank [ 1 ] = = 1 )
realsize = dimmInfo1 . size / 2 ;
else
realsize = dimmInfo1 . size ;
}
if ( bank_no = = 2 | | bank_no = = 3 ) {
if ( checkbank [ 3 ] = = 1 )
realsize = dimmInfo2 . size / 2 ;
else
realsize = dimmInfo2 . size ;
}
memory_map_bank ( bank_no , total , realsize ) ;
/* ronen - initialize the DRAM for ECC */
# ifdef CONFIG_MV64460_ECC
if ( ( dimmInfo1 . errorCheckType ! = 0 ) & &
( ( dimmInfo2 . errorCheckType ! = 0 )
| | ( dimmInfo2 . numOfModuleBanks = = 0 ) ) ) {
printf ( " ECC Initialization of Bank %d: " , bank_no ) ;
memSpaceAttr = ( ( ~ ( BIT0 < < bank_no ) ) & 0xf ) < < 8 ;
mvDmaSetMemorySpace ( 0 , 0 , memSpaceAttr , total ,
realsize ) ;
for ( dest = total ; dest < total + realsize ;
dest + = _8M ) {
mvDmaTransfer ( 0 , total , dest , _8M ,
BIT8 /*DMA_DTL_128BYTES */ |
BIT3 /*DMA_HOLD_SOURCE_ADDR */
|
BIT11
/*DMA_BLOCK_TRANSFER_MODE */ ) ;
while ( mvDmaIsChannelActive ( 0 ) ) ;
}
printf ( " PASS \n " ) ;
}
# endif
total + = realsize ;
}
/* ronen */
switch ( ( GTREGREAD ( 0x141c ) > > 4 ) & 0x7 ) {
case 0x2 :
printf ( " CAS Latency = 2 " ) ;
break ;
case 0x3 :
printf ( " CAS Latency = 3 " ) ;
break ;
case 0x5 :
printf ( " CAS Latency = 1.5 " ) ;
break ;
case 0x6 :
printf ( " CAS Latency = 2.5 " ) ;
break ;
}
printf ( " tRP = %d tRAS = %d tRCD=%d \n " ,
( ( GTREGREAD ( 0x1408 ) > > 8 ) & 0xf ) + 1 ,
( ( GTREGREAD ( 0x1408 ) > > 20 ) & 0xf ) + 1 ,
( ( GTREGREAD ( 0x1408 ) > > 4 ) & 0xf ) + 1 ) ;
/* Setup Ethernet DMA Adress window to DRAM Area */
if ( total > _256M )
printf ( " *** ONLY the first 256MB DRAM memory are used out of the " ) ;
else
printf ( " Total SDRAM memory is " ) ;
/* (cause all the 4 BATS are taken) */
return ( total ) ;
}
/* ronen- add Idma functions for usage of the ecc dram init. */
/*******************************************************************************
* mvDmaIsChannelActive - Checks if a engine is busy .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int mvDmaIsChannelActive ( int engine )
{
ulong data ;
data = GTREGREAD ( MV64460_DMA_CHANNEL0_CONTROL + 4 * engine ) ;
if ( data & BIT14 /*activity status */ ) {
return 1 ;
}
return 0 ;
}
/*******************************************************************************
* mvDmaSetMemorySpace - Set a DMA memory window for the DMA ' s address decoding
* map .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int mvDmaSetMemorySpace ( ulong memSpace ,
ulong memSpaceTarget ,
ulong memSpaceAttr , ulong baseAddress , ulong size )
{
ulong temp ;
/* The base address must be aligned to the size. */
if ( baseAddress % size ! = 0 ) {
return 0 ;
}
if ( size > = 0x10000 /*64K */ ) {
size & = 0xffff0000 ;
baseAddress = ( baseAddress & 0xffff0000 ) ;
/* Set the new attributes */
GT_REG_WRITE ( MV64460_DMA_BASE_ADDR_REG0 + memSpace * 8 ,
( baseAddress | memSpaceTarget | memSpaceAttr ) ) ;
GT_REG_WRITE ( ( MV64460_DMA_SIZE_REG0 + memSpace * 8 ) ,
( size - 1 ) & 0xffff0000 ) ;
temp = GTREGREAD ( MV64460_DMA_BASE_ADDR_ENABLE_REG ) ;
GT_REG_WRITE ( DMA_BASE_ADDR_ENABLE_REG ,
( temp & ~ ( BIT0 < < memSpace ) ) ) ;
return 1 ;
}
return 0 ;
}
/*******************************************************************************
* mvDmaTransfer - Transfer data from sourceAddr to destAddr on one of the 4
* DMA channels .
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int mvDmaTransfer ( int engine , ulong sourceAddr ,
ulong destAddr , ulong numOfBytes , ulong command )
{
ulong engOffReg = 0 ; /* Engine Offset Register */
if ( numOfBytes > 0xffff ) {
command = command | BIT31 /*DMA_16M_DESCRIPTOR_MODE */ ;
}
command = command | ( ( command > > 6 ) & 0x7 ) ;
engOffReg = engine * 4 ;
GT_REG_WRITE ( MV64460_DMA_CHANNEL0_BYTE_COUNT + engOffReg ,
numOfBytes ) ;
GT_REG_WRITE ( MV64460_DMA_CHANNEL0_SOURCE_ADDR + engOffReg ,
sourceAddr ) ;
GT_REG_WRITE ( MV64460_DMA_CHANNEL0_DESTINATION_ADDR + engOffReg ,
destAddr ) ;
command =
command | BIT12 /*DMA_CHANNEL_ENABLE */ | BIT9
/*DMA_NON_CHAIN_MODE */ ;
/* Activate DMA engine By writting to mvDmaControlRegister */
GT_REG_WRITE ( MV64460_DMA_CHANNEL0_CONTROL + engOffReg , command ) ;
return 1 ;
}
/****************************************************************************************
* SDRAM INIT *
* This procedure detect all Sdram types : 64 , 128 , 256 , 512 Mbit , 1 Gbit and 2 Gb *
* This procedure fits only the Atlantis *
* *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/****************************************************************************************
* DFCDL initialize MV643xx Design Considerations *
* *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
int set_dfcdlInit ( void )
{
/*ronen the dfcdl init are done by the I2C */
return ( 0 ) ;
}
