More RPI-B/SD card information [was: Re: RPi won't boot 10.2-BETA1 -- SOLVED]

[Trev]

Glen Barber wrote:
> I did a bit more testing, and it seems the RPI-B is *very* picky about
> what SD cards will work.  Below follows results of the tests, using the
> 20150716-r285616 RPI-B image (built last night, propagating now).
>
> For completeness, I've included 'mmcinfo' output from u-boot, but what
> is really interesting is cards (7) and (8).
[...]
>   7) FAILED
>   Kingston class 4 SDHC 4GB
>   U-Boot> mmcinfo
>   Device: bcm2835_sdhci
>   Manufacturer ID: 2
>   OEM: 544d
>   Name: SA04G
>   Tran Speed: 50000000
>   Rd Block Len: 512
>   SD version 2.0
>   High Capacity: Yes
>   Capacity: 3.6 GiB
>   Bus Width: 4-bit
>
>   8) SUCCESS
>   Kingston class 4 SDHC 4GB
>   U-Boot> mmcinfo
>   Device: bcm2835_sdhci
>   Manufacturer ID: 2
>   OEM: 544d
>   Name: SA04G
>   Tran Speed: 50000000
>   Rd Block Len: 512
>   SD version 2.0
>   High Capacity: Yes
>   Capacity: 3.6 GiB
>   Bus Width: 4-bit

Maybe not so interesting if you read 
http://www.bunniestudios.com/blog/?p=918#comment-512017 regarding 
"Kingston" cards.

Of more interest would be reading the cards ID data for date, fwrev, 
hwrev, manfid, name, oemid, scr and serial number.