| /* |
| * (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 DB64360 Board |
| * Ingo Assmus (ingo.assmus@keymile.com) |
| * |
| * adaption for the cpci750 Board |
| * Reinhard Arlt (reinhard.arlt@esd-electronics.com) |
| *************************************************************************/ |
| |
| |
| /* sdram_init.c - automatic memory sizing */ |
| |
| #include <common.h> |
| #include <74xx_7xx.h> |
| #include "../../Marvell/include/memory.h" |
| #include "../../Marvell/include/pci.h" |
| #include "../../Marvell/include/mv_gen_reg.h" |
| #include <net.h> |
| |
| #include "eth.h" |
| #include "mpsc.h" |
| #include "../../Marvell/common/i2c.h" |
| #include "64360.h" |
| #include "mv_regs.h" |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| #undef DEBUG |
| /* #define DEBUG */ |
| #ifdef CONFIG_PCI |
| #define MAP_PCI |
| #endif /* of CONFIG_PCI */ |
| |
| #ifdef DEBUG |
| #define DP(x) x |
| #else |
| #define DP(x) |
| #endif |
| |
| int set_dfcdlInit(void); /* setup delay line of Mv64360 */ |
| |
| /* ------------------------------------------------------------------------- */ |
| |
| 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; |
| |
| 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 */ |
| |
| memset (data, 0, sizeof (data)); |
| |
| |
| ret = 0; |
| |
| DP (puts ("before i2c read\n")); |
| |
| ret = i2c_read (addr, 0, 2, data, 128); |
| |
| DP (puts ("after i2c read\n")); |
| |
| if ((data[64] != 'e') || (data[65] != 's') || (data[66] != 'd') |
| || (data[67] != '-') || (data[68] != 'g') || (data[69] != 'm') |
| || (data[70] != 'b') || (data[71] != 'h')) { |
| ret = -1; |
| } |
| |
| if ((ret != 0) && (slot == 0)) { |
| memset (data, 0, sizeof (data)); |
| data[0] = 0x80; |
| data[1] = 0x08; |
| data[2] = 0x07; |
| data[3] = 0x0c; |
| data[4] = 0x09; |
| data[5] = 0x01; |
| data[6] = 0x48; |
| data[7] = 0x00; |
| data[8] = 0x04; |
| data[9] = 0x75; |
| data[10] = 0x80; |
| data[11] = 0x02; |
| data[12] = 0x80; |
| data[13] = 0x10; |
| data[14] = 0x08; |
| data[15] = 0x01; |
| data[16] = 0x0e; |
| data[17] = 0x04; |
| data[18] = 0x0c; |
| data[19] = 0x01; |
| data[20] = 0x02; |
| data[21] = 0x20; |
| data[22] = 0x00; |
| data[23] = 0xa0; |
| data[24] = 0x80; |
| data[25] = 0x00; |
| data[26] = 0x00; |
| data[27] = 0x50; |
| data[28] = 0x3c; |
| data[29] = 0x50; |
| data[30] = 0x32; |
| data[31] = 0x10; |
| data[32] = 0xb0; |
| data[33] = 0xb0; |
| data[34] = 0x60; |
| data[35] = 0x60; |
| data[64] = 'e'; |
| data[65] = 's'; |
| data[66] = 'd'; |
| data[67] = '-'; |
| data[68] = 'g'; |
| data[69] = 'm'; |
| data[70] = 'b'; |
| data[71] = 'h'; |
| ret = 0; |
| } |
| |
| /* 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 CFG_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 Manufacturer 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; |
| #if 0 /* test-only */ |
| 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"); |
| #endif /* test-only */ |
| |
| /*------------------------------------------------------------------------------------------------------------------------------*/ |
| 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; |
| } |
| 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 ("\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) |
| 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 ("\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) |
| 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 - devicesForErrCheck); |
| } 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 & 0x1c) >> 1; |
| |
| cal_val = 0; |
| if (supp_cal & 8) { |
| if (NS10to10PS (data[9]) <= tmemclk) |
| cal_val = 6; |
| } |
| if (supp_cal & 4) { |
| if (NS10to10PS (data[9]) <= tmemclk) |
| cal_val = 5; |
| } |
| |
| /* then 2... */ |
| if (supp_cal & 2) { |
| if (NS10to10PS (data[23]) <= tmemclk) |
| cal_val = 4; |
| } |
| |
| DP (printf ("cal_val = %d\n", cal_val * 5)); |
| |
| /* bummer, did't work... */ |
| if (cal_val == 0) { |
| DP (printf ("Couldn't find a good CAS latency\n")); |
| hang (); |
| return 0; |
| } |
| |
| return true; |
| } |
| |
| /* 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; |
| |
| /* sanity checking */ |
| if (!info->numOfModuleBanks) { |
| printf ("setup_sdram called with 0 banks\n"); |
| return 1; |
| } |
| |
| /* delay line */ |
| |
| /* Program the GT with the discovered data */ |
| if (info->registeredAddrAndControlInputs == true) |
| DP (printf |
| ("Module is registered, but we do not support registered Modules !!!\n")); |
| |
| |
| /* 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 */ |
| GT_REG_WRITE (SDRAM_CONFIG, 0x58200400); |
| DP (printf ("sdram_conf 0x1400: %08x\n", GTREGREAD (SDRAM_CONFIG))); |
| |
| /* SDRAM open pages controll 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 Lentency according to SPD information */ |
| switch (info->memoryType) { |
| case SDRAM: |
| DP (printf ("### SD-RAM not supported yet !!!\n")); |
| hang (); |
| /* ToDo fill SD-RAM if needed !!!!! */ |
| break; |
| |
| case DDR: |
| DP (printf ("### SET-CL for DDR-RAM\n")); |
| |
| switch (info->maxClSupported_DDR) { |
| case DDR_CL_3: |
| tmp_dunit_control_low = 0x3c000000; /* Read-Data sampled on falling edge of Clk */ |
| tmp_sdram_mode = 0x32; /* CL=3 Burstlength = 4 */ |
| 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: |
| if (tmp == 1) { /* clocks sync */ |
| tmp_dunit_control_low = 0x24000000; /* Read-Data sampled on falling edge of Clk */ |
| tmp_sdram_mode = 0x62; /* CL=2,5 Burstlength = 4 */ |
| DP (printf |
| ("Max. CL is 2,5s CLKs 0x141c= %08lx, 0x1404 = %08lx\n", |
| tmp_sdram_mode, tmp_dunit_control_low)); |
| } else { /* clk sync. bypassed */ |
| |
| tmp_dunit_control_low = 0x03000000; /* Read-Data sampled on rising edge of Clk */ |
| tmp_sdram_mode = 0x62; /* CL=2,5 Burstlength = 4 */ |
| 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: |
| if (tmp == 1) { /* Sync */ |
| tmp_dunit_control_low = 0x03000000; /* Read-Data sampled on rising edge of Clk */ |
| tmp_sdram_mode = 0x22; /* CL=2 Burstlength = 4 */ |
| DP (printf |
| ("Max. CL is 2s CLKs 0x141c= %08lx, 0x1404 = %08lx\n", |
| tmp_sdram_mode, tmp_dunit_control_low)); |
| } else { /* Not sync. */ |
| |
| tmp_dunit_control_low = 0x3b000000; /* Read-Data sampled on rising edge of Clk */ |
| tmp_sdram_mode = 0x22; /* CL=2 Burstlength = 4 */ |
| 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: |
| if (tmp == 1) { /* Sync */ |
| tmp_dunit_control_low = 0x23000000; /* Read-Data sampled on falling edge of Clk */ |
| tmp_sdram_mode = 0x52; /* CL=1,5 Burstlength = 4 */ |
| DP (printf |
| ("Max. CL is 1,5s CLKs 0x141c= %08lx, 0x1404 = %08lx\n", |
| tmp_sdram_mode, tmp_dunit_control_low)); |
| } else { /* not sync */ |
| |
| tmp_dunit_control_low = 0x1a000000; /* Read-Data sampled on rising edge of Clk */ |
| tmp_sdram_mode = 0x52; /* CL=1,5 Burstlength = 4 */ |
| 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; |
| } |
| break; |
| } |
| |
| /* Write results of CL detection procedure */ |
| 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 1418 after SDRAM_MODE: Module still busy ... please wait... ***\n")); |
| } |
| |
| |
| /* SDRAM D_UNIT_CONTROL_LOW 0x1404 */ |
| tmp = (GTREGREAD (D_UNIT_CONTROL_LOW) & 0x01); /* Clock Domain Sync from power on reset */ |
| if (tmp != 1) { /*clocks are not sync */ |
| /* asyncmode */ |
| GT_REG_WRITE (D_UNIT_CONTROL_LOW, |
| (GTREGREAD (D_UNIT_CONTROL_LOW) & 0x7F) | |
| 0x18110780 | tmp_dunit_control_low); |
| } else { |
| /* syncmode */ |
| GT_REG_WRITE (D_UNIT_CONTROL_LOW, |
| (GTREGREAD (D_UNIT_CONTROL_LOW) & 0x7F) | |
| 0x00110000 | 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 */ |
| /* program this with the default value */ |
| tmp = 0x02; |
| |
| |
| DP (printf ("drb_size (n*64Mbit): %d\n", info->drb_size)); |
| switch (info->drb_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"); |
| DP (printf ("Assume: RAM-Device_size 1Gbit or 2Gbit)\n")); |
| tmp |= (0x02 << 4); |
| return 1; |
| } |
| |
| /* SDRAM bank parameters */ |
| /* the param registers for slot 1 (banks 2+3) are offset by 0x8 */ |
| DP (printf |
| ("setting up slot %d config with: %08lx \n", info->slot, tmp)); |
| GT_REG_WRITE (SDRAM_ADDR_CONTROL, tmp); |
| |
| /* ------------------------------------------------------------------------------ */ |
| |
| DP (printf |
| ("setting up sdram_timing_control_low with: %08x \n", |
| 0x11511220)); |
| GT_REG_WRITE (SDRAM_TIMING_CONTROL_LOW, 0x11511220); |
| |
| |
| /* ------------------------------------------------------------------------------ */ |
| |
| /* 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 MV64360 */ |
| tmp |= (1 << 26); |
| DP (printf |
| ("Before Buffer assignment - sdram_conf: %08x\n", |
| GTREGREAD (SDRAM_CONFIG))); |
| DP (printf |
| ("After Buffer assignment - sdram_conf: %08x\n", |
| GTREGREAD (SDRAM_CONFIG))); |
| |
| /* SDRAM timing To_do: */ |
| |
| |
| tmp = GTREGREAD (SDRAM_TIMING_CONTROL_HIGH); |
| DP (printf ("# sdram_timing_control_high is : %08lx \n", tmp)); |
| |
| /* SDRAM address decode register */ |
| /* program this with the default value */ |
| tmp = GTREGREAD (SDRAM_ADDR_CONTROL); |
| DP (printf |
| ("SDRAM address control (before: decode): %08x ", |
| GTREGREAD (SDRAM_ADDR_CONTROL))); |
| GT_REG_WRITE (SDRAM_ADDR_CONTROL, (tmp | 0x2)); |
| DP (printf |
| ("SDRAM address control (after: decode): %08x\n", |
| GTREGREAD (SDRAM_ADDR_CONTROL))); |
| |
| /* 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); |
| #if 1 /* test only */ |
| /* 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)); |
| #endif /* test only */ |
| /* 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 */ |
| long int |
| initdram(int board_type) |
| { |
| int s0 = 0, s1 = 0; |
| int checkbank[4] = { [0 ... 3] = 0 }; |
| ulong bank_no, realsize, total, check; |
| AUX_MEM_DIMM_INFO dimmInfo1; |
| AUX_MEM_DIMM_INFO dimmInfo2; |
| int nhr; |
| |
| /* 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); |
| |
| 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; printf("-- DIMM1 has 1 bank\n");} |
| if (dimmInfo1.numOfModuleBanks > 1) {checkbank[1] = 1; printf("-- DIMM1 has 2 banks\n");} |
| if (dimmInfo1.numOfModuleBanks > 2) |
| printf("Error, SPD claims DIMM1 has >2 banks\n"); |
| |
| if (dimmInfo2.numOfModuleBanks > 0) {checkbank[2] = 1; printf("-- DIMM2 has 1 bank\n");} |
| if (dimmInfo2.numOfModuleBanks > 1) {checkbank[3] = 1; printf("-- DIMM2 has 2 banks\n");} |
| if (dimmInfo2.numOfModuleBanks > 2) |
| printf("Error, SPD claims DIMM2 has >2 banks\n"); |
| |
| for (bank_no = 0; bank_no < CFG_DRAM_BANKS; bank_no++) { |
| /* skip over banks that are not populated */ |
| if (! checkbank[bank_no]) |
| continue; |
| |
| if ((total + check) > CFG_GT_REGS) |
| check = CFG_GT_REGS - total; |
| |
| memory_map_bank(bank_no, total, check); |
| realsize = dram_size((long int *)total, check); |
| memory_map_bank(bank_no, total, realsize); |
| |
| total += realsize; |
| } |
| |
| /* Setup Ethernet DMA Adress window to DRAM Area */ |
| return(total); |
| } |
| |
| /* *************************************************************************************** |
| ! * 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) |
| { |
| int i; |
| unsigned int dfcdl_word = 0x0000014f; |
| |
| for (i = 0; i < 64; i++) { |
| GT_REG_WRITE (SRAM_DATA0, dfcdl_word); |
| } |
| GT_REG_WRITE (DFCDL_CONFIG0, 0x00300000); /* enable dynamic delay line updating */ |
| |
| |
| return (0); |
| } |