Larry Finger wrote:
> Michael Buesch wrote:
>   
>> On Friday 25 April 2008 06:55:54 Larry Finger wrote:
>>     
>>> Michael,
>>>
>>> I have discovered that both sprom_extract_r123() in the ssb driver, 
>>> and ssb-sprom use a two-byte quantity to extract the board revision. 
>>> In the specifications detailed in 
>>> http://bcm-v4.sipsolutions.net/SPROM, a single-byte is used for this 
>>> parameter.
>>>
>>> It is unlikely that this causes any serious difficulties; however, at 
>>> least one fixup depends on the board revision, and I wanted to be 
>>> certain that you were aware of the situation.
>>>       
>> I'm not sure what you're talking about.
>>
>> #define  SSB_SPROM1_BINF_BREV           0x00FF  /* Board Revision */
>> SPEX(board_rev, SSB_SPROM1_BINF, SSB_SPROM1_BINF_BREV, 0);
>>
>>     
>
> Yes - 2 bytes in the code above, but the spec says bits 0-7!
>
> Larry
>   
Whoops, ignore previous message.
0xFF is one byte.  Bits 0-7 are 0xFF. 
Bits 0-7 = 0-255 = 0x00-0xFF

A nibble which I thought was cute because I could rhyme against it
is half a byte, or 4 bits, or one hex digit.

E (it's 0730 and I've been up 33hrs ;)
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