[U-Boot] [PATCH 06/12] armv8: ls2080aqds: Config QSPI pin mux via FPGA in NAND boot

[york sun]

On 03/02/2016 06:28 PM, Yao Yuan wrote:
> On 03/03/2016 12:52 AM, York Sun wrote:
>> On 03/02/2016 02:41 AM, Yuan Yao wrote:
>>> From: Yuan Yao <yao.yuan at nxp.com>
>>>
>>> If we want to access QSPI flash when boot from NAND,
>>
>> Is this "either this or that" choice? Is there any limitation after configuring pin
>> mux?
> 
> No, there is no any limitation.
> Just make a distinction between the different NAND source.
> And deasserted unused ISO will approve the performance.
> 
> Such as for LS2080AQDS, the last three bits for brdcfg[9] should be set to 
> 0b'001.
> 
>>> we need below board configuration:
>>> Boot Source             ISO1    ISO2    IBOOT
>>> On-board NAND   1       0       0
>>> IFCCARD NAND    0       0       1
>>
>> This should be added to README file.
>>
> 
> So I need remove it from the uboot code?
> 

No. I misunderstood you. Your change is to isolate IFC card. I didn't see why it
has something to do with QSPI. At least you didn't make it clear in the commit
message. You may consider to move the comment closer to the code.

York