[U-Boot] [PATCH] 85xx/p2020ds: Use is_serdes_configured() to determine of PCIe enabled

[Kumar Gala]

On May 27, 2010, at 6:20 AM, Wolfgang Denk wrote:

> Dear Kumar Gala,
> 
> In message <5F58DE0B-6EF8-4ED6-A1A8-C0E37C8539BE at kernel.crashing.org> you wrote:
>> 
>> This is my fault.  However not sure what to do about it since we'd break
>> compatibility with kernel .dts to clean this up.
>> 
>> 99% of the u-boot code should match the HW docs.  In this one place I
>> tried to "rename" things such that it made sense.  The pci aliases in
>> the .dts are in order of address (so whatever HW controller is @ 0x8000
>> would be "pci0", 0x9000 - "pci1", etc.)
> 
> This doesn't seem to be the case in U-Boot; here we see:
> 
> #define CONFIG_SYS_PCIE3_ADDR           (CONFIG_SYS_CCSRBAR+0x8000)
> #define CONFIG_SYS_PCIE2_ADDR           (CONFIG_SYS_CCSRBAR+0x9000)
> #define CONFIG_SYS_PCIE1_ADDR           (CONFIG_SYS_CCSRBAR+0xa000)
> 
> i. e. the highest number is at the lowest address??

Correct, that is matching FSL HW docs numbering/naming.

in the .dts the alias:
* "pci0" is @ 0x8000	- FSL HW calls it PCIE3
* "pci1" is @ 0x9000	- FSL HW calls it PCIE2
* "pci2" is @ 0xa000	- FSL HW calls it PCIE1

- k