[PATCH v2 1/2] riscv: Support booting SiFive Unmatched from SPI.

[Thomas Skibo]

On 11/23/21 8:39 PM, Sean Anderson wrote:
> On 11/23/21 11:27 PM, Thomas Skibo wrote:
>> +
>> +
>> +Booting from SPI
>> +----------------
>> +
>> +Use Building steps from "Booting from uSD using U-Boot SPL" section.
>> +
>> +Partition the SPI in Linux via mtdblock.
>> +
>> +.. code-block:: none
>> +
>> +    sgdisk --clear -a 1 \
>> +        --new=1:40:2087     --change-name=1:spl   
>> --typecode=1:5B193300-FC78-40CD-8002-E86C45580B47 \
>> +        --new=2:2088:10279  --change-name=2:uboot 
>> --typecode=2:2E54B353-1271-4842-806F-E436D6AF6985 \
>> +        --new=3:10280:10535 --change-name=3:env   
>> --typecode=3:0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
> 
> nit: Please use hexcodes as printed with sgdisk -L. And also document
> what the type is. Documentation is for us humans after all :)
> 
> --Sean
> 

The first two partitions' typecodes are unique to the SiFive chip so 
they don't have a short hexcode.  The third partition, storage for the 
environment, is hexcode 8300 which is a Linux filesystem.  I wonder if 
there is  better partition type for the environment.

I can change the typecode for the third partition and add a note about 
what the other partitions are.

-Thomas