diff options
Diffstat (limited to 'board/Marvell/db64460/sdram_init.c')
| -rw-r--r-- | board/Marvell/db64460/sdram_init.c | 1950 |
1 files changed, 0 insertions, 1950 deletions
diff --git a/board/Marvell/db64460/sdram_init.c b/board/Marvell/db64460/sdram_init.c deleted file mode 100644 index 71c2d9eb32..0000000000 --- a/board/Marvell/db64460/sdram_init.c +++ /dev/null @@ -1,1950 +0,0 @@ -/* - * (C) Copyright 2001 - * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/************************************************************************* - * 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; - -#define MAP_PCI - -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 - - - if (bankLength > 0) { - debug("mapping bank %d at %08x - %08x\n", - bankNo, bankBase, bankBase + bankLength - 1); - } else { - debug("unmapping bank %d\n", bankNo); - } - - 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; - -#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, tras_clocks; - uchar data[128]; - - memclk = gd->bus_clk; - tmemclk = 1000000000 / (memclk / 100); /* in 10 ps units */ - - debug("before i2c read\n"); - - ret = i2c_read (addr, 0, 1, data, 128); - - debug("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) { - debug("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 ("\nThis 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) - debug - ("Dram_type in slot %d is: SDRAM\n", - dimmInfo->slot); - if (dimmInfo->memoryType == 1) - debug - ("Dram_type in slot %d is: DDRAM\n", - dimmInfo->slot); -#endif - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 3: /* Number Of Row Addresses */ - dimmInfo->numOfRowAddresses = data[i]; - debug - ("Module Number of row addresses: %d\n", - dimmInfo->numOfRowAddresses); - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 4: /* Number Of Column Addresses */ - dimmInfo->numOfColAddresses = data[i]; - debug - ("Module Number of col addresses: %d\n", - dimmInfo->numOfColAddresses); - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 5: /* Number Of Module Banks */ - dimmInfo->numOfModuleBanks = data[i]; - debug - ("Number of Banks on Mod. : %d\n", - dimmInfo->numOfModuleBanks); - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 6: /* Data Width */ - dimmInfo->dataWidth = data[i]; - debug - ("Module Data Width: %d\n", - dimmInfo->dataWidth); - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 8: /* Voltage Interface */ - switch (data[i]) { - case 0x0: - dimmInfo->voltageInterface = TTL_5V_TOLERANT; - debug - ("Module is TTL_5V_TOLERANT\n"); - break; - case 0x1: - dimmInfo->voltageInterface = LVTTL; - debug - ("Module is LVTTL\n"); - break; - case 0x2: - dimmInfo->voltageInterface = HSTL_1_5V; - debug - ("Module is TTL_5V_TOLERANT\n"); - break; - case 0x3: - dimmInfo->voltageInterface = SSTL_3_3V; - debug - ("Module is HSTL_1_5V\n"); - break; - case 0x4: - dimmInfo->voltageInterface = SSTL_2_5V; - debug - ("Module is SSTL_2_5V\n"); - break; - default: - dimmInfo->voltageInterface = VOLTAGE_UNKNOWN; - debug - ("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; - debug - ("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; - debug("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]; - debug - ("Error Check Type (0=NONE): %d\n", - dimmInfo->errorCheckType); - break; -/* #endif */ -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 12: /* Refresh Interval */ - dimmInfo->RefreshInterval = data[i]; - debug - ("RefreshInterval (80= Self refresh Normal, 15.625us) : %x\n", - dimmInfo->RefreshInterval); - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 13: /* Sdram Width */ - dimmInfo->sdramWidth = data[i]; - debug - ("Sdram Width: %d\n", - dimmInfo->sdramWidth); - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 14: /* Error Check Data Width */ - dimmInfo->errorCheckDataWidth = data[i]; - debug - ("Error Check Data Width: %d\n", - dimmInfo->errorCheckDataWidth); - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 15: /* Minimum Clock Delay */ - dimmInfo->minClkDelay = data[i]; - debug - ("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 - debug - ("Burst Length Supported: "); - if (dimmInfo->burstLengthSupported & 0x01) - debug("1, "); - if (dimmInfo->burstLengthSupported & 0x02) - debug("2, "); - if (dimmInfo->burstLengthSupported & 0x04) - debug("4, "); - if (dimmInfo->burstLengthSupported & 0x08) - debug("8, "); - debug(" Bit \n"); -#endif - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 17: /* Number Of Banks On Each Device */ - dimmInfo->numOfBanksOnEachDevice = data[i]; - debug - ("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 - debug - ("Suported Cas Latencies: (CL) "); - if (dimmInfo->memoryType == 0) { /* SDRAM */ - for (k = 0; k <= 7; k++) { - if (dimmInfo-> - suportedCasLatencies & (1 << k)) - debug - ("%d, ", - k + 1); - } - - } else { /* DDR-RAM */ - - if (dimmInfo->suportedCasLatencies & 1) - debug("1, "); - if (dimmInfo->suportedCasLatencies & 2) - debug("1.5, "); - if (dimmInfo->suportedCasLatencies & 4) - debug("2, "); - if (dimmInfo->suportedCasLatencies & 8) - debug("2.5, "); - if (dimmInfo->suportedCasLatencies & 16) - debug("3, "); - if (dimmInfo->suportedCasLatencies & 32) - debug("3.5, "); - - } - debug("\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: - debug - ("Max. Cas Latencies (DDR): ERROR !!!\n"); - dimmInfo-> - maxClSupported_DDR - = - DDR_CL_FAULT; - hang (); - break; - case 6: - debug - ("Max. Cas Latencies (DDR): ERROR !!!\n"); - dimmInfo-> - maxClSupported_DDR - = - DDR_CL_FAULT; - hang (); - break; - case 5: - debug - ("Max. Cas Latencies (DDR): 3.5 clk's\n"); - dimmInfo-> - maxClSupported_DDR - = DDR_CL_3_5; - break; - case 4: - debug - ("Max. Cas Latencies (DDR): 3 clk's \n"); - dimmInfo-> - maxClSupported_DDR - = DDR_CL_3; - break; - case 3: - debug - ("Max. Cas Latencies (DDR): 2.5 clk's \n"); - dimmInfo-> - maxClSupported_DDR - = DDR_CL_2_5; - break; - case 2: - debug - ("Max. Cas Latencies (DDR): 2 clk's \n"); - dimmInfo-> - maxClSupported_DDR - = DDR_CL_2; - break; - case 1: - debug - ("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; - debug - ("*** 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; - debug - ("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 */ - debug - ("Max. Cas Latencies (SD): %d\n", - dimmInfo-> - maxClSupported_SD); - dimmInfo-> - maxCASlatencySupported_LoP - = j; - dimmInfo-> - maxCASlatencySupported_RoP - = 0; - debug - ("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 */ - debug("\nModul 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) - debug - (" - Buffered Address/Control Input: Yes \n"); - else - debug - (" - Buffered Address/Control Input: No \n"); - - if (dimmInfo->registeredAddrAndControlInputs == 1) - debug - (" - Registered Address/Control Input: Yes \n"); - else - debug - (" - Registered Address/Control Input: No \n"); - - if (dimmInfo->onCardPLL == 1) - debug - (" - On-Card PLL (clock): Yes \n"); - else - debug - (" - On-Card PLL (clock): No \n"); - - if (dimmInfo->bufferedDQMBinputs == 1) - debug - (" - Bufferd DQMB Inputs: Yes \n"); - else - debug - (" - Bufferd DQMB Inputs: No \n"); - - if (dimmInfo->registeredDQMBinputs == 1) - debug - (" - Registered DQMB Inputs: Yes \n"); - else - debug - (" - Registered DQMB Inputs: No \n"); - - if (dimmInfo->differentialClockInput == 1) - debug - (" - Differential Clock Input: Yes \n"); - else - debug - (" - Differential Clock Input: No \n"); - - if (dimmInfo->redundantRowAddressing == 1) - debug - (" - redundant Row Addressing: Yes \n"); - else - debug - (" - redundant Row Addressing: No \n"); - -#endif - break; -/*------------------------------------------------------------------------------------------------------------------------------*/ - - case 22: /* Suported AutoPreCharge */ - debug("\nModul 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) - debug - (" - Early Ras Precharge: Yes \n"); - else - debug - (" - Early Ras Precharge: No \n"); - - if (dimmInfo->suportedAutoPreCharge == 1) - debug - (" - AutoPreCharge: Yes \n"); - else - debug - (" - AutoPreCharge: No \n"); - - if (dimmInfo->suportedPreChargeAll == 1) - debug - (" - Precharge All: Yes \n"); - else - debug - (" - Precharge All: No \n"); - - if (dimmInfo->suportedWrite1ReadBurst == 1) - debug - (" - Write 1/ReadBurst: Yes \n"); - else - debug - (" - Write 1/ReadBurst: No \n"); - - if (dimmInfo->suported5PercentLowVCC == 1) - debug - (" - lower VCC tolerance: 5 Percent \n"); - else - debug - (" - lower VCC tolerance: 10 Percent \n"); - - if (dimmInfo->suported5PercentUpperVCC == 1) - debug - (" - upper VCC tolerance: 5 Percent \n"); - else - debug - (" - 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; - debug("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; - debug - ("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; - debug("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; - debug - ("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; - debug - ("*** 1 clock cycle = %ld 10ps intervalls = %ld.%ld ns****\n", - tmemclk, tmemclk / 100, tmemclk % 100); - debug - ("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 */ - debug - ("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 */ - debug - ("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; - debug - ("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]; - debug - ("Module Bank Density: %d\n", - dimmInfo->moduleBankDensity); -#ifdef DEBUG - debug - ("*** Offered Densities (more than 1 = Multisize-Module): "); - { - if (dimmInfo->moduleBankDensity & 1) - debug("4MB, "); - if (dimmInfo->moduleBankDensity & 2) - debug("8MB, "); - if (dimmInfo->moduleBankDensity & 4) - debug("16MB, "); - if (dimmInfo->moduleBankDensity & 8) - debug("32MB, "); - if (dimmInfo->moduleBankDensity & 16) - debug("64MB, "); - if (dimmInfo->moduleBankDensity & 32) - debug("128MB, "); - if ((dimmInfo->moduleBankDensity & 64) - || (dimmInfo->moduleBankDensity & 128)) { - debug("ERROR, "); - hang (); - } - } - debug("\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; - debug - ("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; - debug - ("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; - debug - ("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; - debug - ("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; - 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; - debug("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; - } - - debug("cal_val = %d\n", cal_val); - - /* bummer, did't work... */ - if (cal_val == 0) { - debug("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 */ - debug("Delay line set done\n"); - - /* set SDRAM mode NOP */ /* To_do check it */ - GT_REG_WRITE (SDRAM_OPERATION, 0x5); - while (GTREGREAD (SDRAM_OPERATION) != 0) { - debug - ("\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_CLK) - / (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_CLK) / - (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_CLK) / - (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_CLK) / - (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_CLK) / - (float) 1000000.0); - break; - case 0x5: - case 0x85: /* refresh period is 125 usec */ - sdram_config_reg = - (unsigned int) (((float) 125 * (float) CONFIG_SYS_BUS_CLK) / - (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; - } - debug("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; - debug("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; - debug("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; - debug("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; - debug("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; - debug("Data DQS pins set for 8 pins\n"); - break; - case 0x20: /* memory is x32 */ - /* both bits are cleared for x32 so nothing to do */ - debug("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); - debug("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); - debug - ("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) - debug("Core Signals are sync (by HW-Setting)!!!\n"); - else - debug - ("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: - debug("### 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; - debug - ("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; - debug - ("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; - debug - ("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; - debug - ("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; - debug - ("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;; - debug - ("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; - debug - ("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; - debug - ("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) { - debug - ("\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) { - debug - ("\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 */ - - debug("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; - debug("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 */ - debug("RAM-Device_size 64Mbit or 128Mbit)\n"); - tmp |= (0x00 << 4); - break; - case 4: /* 256 Mbit */ - case 8: /* 512 Mbit */ - debug("RAM-Device_size 256Mbit or 512Mbit)\n"); - tmp |= (0x01 << 4); - break; - case 16: /* 1 Gbit */ - case 32: /* 2 Gbit */ - debug("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); - debug - ("setting up sdram address control (0x1410) with: %08lx \n", - tmp); - -/* ------------------------------------------------------------------------------ */ -/* same settings for registerd & non-registerd DDR SDRAM */ - debug - ("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); - debug - ("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); - debug - ("Before Buffer assignment - sdram_conf (0x1400): %08x\n", - GTREGREAD (SDRAM_CONFIG)); - debug - ("After Buffer assignment - sdram_conf (0x1400): %08x\n", - GTREGREAD (SDRAM_CONFIG)); - - /* SDRAM timing To_do: */ -/* ------------------------------------------------------------------------------ */ - /* ronen db64460 */ - debug - ("setting up sdram_timing_control_high (0x140c) with: %08x \n", - 0xc); - GT_REG_WRITE (SDRAM_TIMING_CONTROL_HIGH, 0xc); - - debug - ("setting up sdram address pads control (0x14c0) with: %08x \n", - 0x7d5014a); - GT_REG_WRITE (SDRAM_ADDR_CTRL_PADS_CALIBRATION, 0x7d5014a); - - debug - ("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; - debug - ("\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); - debug - ("\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); - debug - ("\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) { - debug - ("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 checkbank[4] = {[0 ... 3] = 0 }; - ulong realsize, total; - 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 */ - check_dimm (0, &dimmInfo1); - - /* DIMM1 */ - 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; - 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, 1Gbit and 2Gb * - * 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); -} |
