Re: [PATCH] decode-dimms: display MAC from DDR3 SPD

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Jun 14, 2019 at 02:58:14PM +0200, Francois Cartegnie wrote:
> JEDEC Standard No. 21-C, Annex K, Release 6
> 
> Byte 41 is specified, the lower part containing
> the MAC value, identical as DDR4.

Adding Jean (the maintainer to CC)...

> ---
>  eeprom/decode-dimms | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/eeprom/decode-dimms b/eeprom/decode-dimms
> index b976442..2c33f0b 100755
> --- a/eeprom/decode-dimms
> +++ b/eeprom/decode-dimms
> @@ -1703,6 +1703,12 @@ sub decode_ddr3_sdram($)
>  		tns3($bytes->[27] * $mtb));
>  	printl("Minimum Four Activate Window Delay (tFAW)",
>  		tns3(((($bytes->[28] & 15) << 8) + $bytes->[29]) * $mtb));
> +# other information
> +        my @mac = ("Untested",
> +                   "700 K", "600 K", "500 K", "400 K", "300 K", "200 K",
> +                   undef, "Unlimited");
> +        my $mac = $bytes->[41] & 0x0f;
> +        printl_cond(defined $mac[$mac], "Maximum Active Count (MAC)", $mac[$mac]);
>  
>  # miscellaneous stuff
>  	prints("Optional Features");
> -- 
> 2.20.1
> 

Attachment: signature.asc
Description: PGP signature


[Index of Archives]     [Linux GPIO]     [Linux SPI]     [Linux Hardward Monitoring]     [LM Sensors]     [Linux USB Devel]     [Linux Media]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux