[coreboot] Modifying FSP in Binary Configuration Tool (BCT)

Tue Oct 16 07:49:42 CEST 2018

Good day Zvika:

Looks typical the configuration
But for DIMM Density to get this information you should run the command I told you yesterday or check the memory chip datasheet.

About the 0xCE postcode you need to set the microcode (or the correct one, or the correct path) in menuconfig.

Jose.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
On Tuesday, October 16, 2018 6:41 AM, Zvi Vered <veredz72 at gmail.com> wrote:

> Hi Jose, All,
>
> According to the following outputs,  it seems my target has SPD EEPROM.
> If I understand correctly from your reply, I should modify only:
> DRAM Type: DDR3
> DRAM Speed: 1333 MT/s
> DIMM 0 Enable: Enabled
> DIMM 1 Enable: Disabled
> DIMM_DWidth: x8
> DIMM_Density: ??? (Default is 2Gbit)
> DIMM_BusWidth: 64
> DIMM_Sides: 1 Ranks
>
> Am I right ?
>
> I tried booting the target with the modified FSP and got post code : 0xCE
> There is nothing on the 232 console.
> There is no such post code in coreboot code.
> Is it possible that FSP is sending post code ?
> How can I proceed from here?
>
> Thank you very much,
> Zvika
>
> ********************************** sensors-detect ****************************************
> ....
> Probing for `SPD EEPROM'...                                 Yes
>     (confidence 8, not a hardware monitoring chip)
> .....
> ********************************** dmidecode ***************************************
> .....
> Handle 0x0009, DMI type 17, 34 bytes
> Memory Device
> Array Handle: 0x0008
> Error Information Handle: Not Provided
> Total Width: 72 bits
> Data Width: 64 bits
> Size: 4096 MB
> Form Factor: SODIMM
> Set: None
> Locator: DIMM0
> Bank Locator: BANK 0
> Type: DDR3
> Type Detail: Synchronous
> Speed: 1333 MHz
> Manufacturer: 00
> Serial Number: 00000000
> Asset Tag: Unknown
> Part Number:
> Rank: Unknown
> Configured Clock Speed: 1333 MHz
>
> Handle 0x000B, DMI type 17, 34 bytes
> Memory Device
> Array Handle: 0x0008
> Error Information Handle: Not Provided
> Total Width: Unknown
> Data Width: Unknown
> Size: No Module Installed
> Form Factor: SODIMM
> Set: None
> Locator: DIMM1
> Bank Locator: BANK 1
> Type: Unknown
> Type Detail: None
> Speed: Unknown
> Manufacturer: Not Specified
> Serial Number: Not Specified
> Asset Tag: Unknown
> Part Number: Not Specified
> Rank: Unknown
> Configured Clock Speed: Unknown
> ....
> *******************************************decode-dimms**************************************
> # decode-dimms version 6231 (2014-02-20 10:54:34 +0100)
>
> Memory Serial Presence Detect Decoder
> By Philip Edelbrock, Christian Zuckschwerdt, Burkart Lingner,
> Jean Delvare, Trent Piepho and others
>
> Decoding EEPROM: /sys/bus/i2c/drivers/eeprom/8-0050
> Guessing DIMM is in                             bank 1
>
> ---=== SPD EEPROM Information ===---
> EEPROM CRC of bytes 0-116                       OK (0x59A6)
> # of bytes written to SDRAM EEPROM              176
> Total number of bytes in EEPROM                 256
> Fundamental Memory type                         DDR3 SDRAM
> Module Type                                     72b-SO-UDIMM
>
> ---=== Memory Characteristics ===---
> Fine time base                                  1.000 ps
> Medium time base                                0.125 ns
> Maximum module speed                            1333 MHz (PC3-10600)
> Size                                            4096 MB
> Banks x Rows x Columns x Bits                   8 x 16 x 10 x 64
> Ranks                                           1
> SDRAM Device Width                              8 bits
> Bus Width Extension                             8 bits
> tCL-tRCD-tRP-tRAS                               9-9-9-24
> Supported CAS Latencies (tCL)                   10T, 9T, 8T, 7T, 6T
>
> ---=== Timing Parameters ===---
> Minimum Write Recovery time (tWR)               15.000 ns
> Minimum Row Active to Row Active Delay (tRRD)   6.000 ns
> Minimum Active to Auto-Refresh Delay (tRC)      49.125 ns
> Minimum Recovery Delay (tRFC)                   260.000 ns
> Minimum Write to Read CMD Delay (tWTR)          7.500 ns
> Minimum Read to Pre-charge CMD Delay (tRTP)     7.500 ns
> Minimum Four Activate Window Delay (tFAW)       30.000 ns
>
> ---=== Optional Features ===---
> Operable voltages                               1.5V, 1.35V
> RZQ/6 supported?                                Yes
> RZQ/7 supported?                                Yes
> DLL-Off Mode supported?                         Yes
> Operating temperature range                     0-95 degrees C
> Refresh Rate in extended temp range             1X
> Auto Self-Refresh?                              No
> On-Die Thermal Sensor readout?                  No
> Partial Array Self-Refresh?                     No
> Thermal Sensor Accuracy                         Not implemented
> SDRAM Device Type                               Standard Monolithic
>
> ---=== Manufacturer Data ===---
> Module Manufacturer                             Invalid
> Part Number                                     Undefined
>
> Number of SDRAM DIMMs detected and decoded: 1
> *************************************************************************************************
>
> On Mon, Oct 15, 2018 at 9:43 AM Jose Trujillo <ce.autom at protonmail.com> wrote:
>
>> Zvika:
>>
>> In my experience with my Baytrail system I can tell you my system is "really" memory down because has soldered memory chips on the motherboard BUT has also a soldered SPD memory so, if keep "Enable Memory Down = Disabled" in BCT the system fetch memory timings from SPD so, no need to edit memory timings but other things like "DRAM Speed" and "DRAM Type" and other settings (not timings) needs to be edited.
>>
>> but if still needed to edit timings extract them from SPD with "i2c-tools-perl".... I alredy sent you this information in previous emails and attachments so, look for this.....
>>
>> Good luck,
>> Jose.
>>
>> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
>> On Friday, October 12, 2018 7:29 PM, Zvi Vered <veredz72 at gmail.com> wrote:
>>
>>> Hello,
>>>
>>> The BCT has a "Memory Down" section.
>>> Can you please advise how can I know the right values for my board ?
>>>
>>> DIMM 0/1 Enable:
>>> DIMM DWidth:
>>> DIMM Density:
>>> DIMM_BusWidth:
>>> DIMM Sides:
>>> tCL:
>>> tRP_tRCD:
>>> tWR:
>>> tWTR:
>>> tRRD:
>>> tRTP:
>>> tFAW:
>>>
>>> Thank you in advance,
>>> Zvika
>>>
>>> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>>>
>>> coreboot mailing list: coreboot at coreboot.org
>>> https://mail.coreboot.org/mailman/listinfo/coreboot
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