[PATCH] powerpc/83xx: Make serial ports work on MPC8315E-RDB w/FSL U-Boots

[Kumar Gala]

On Jan 12, 2009, at 1:55 AM, Li Yang wrote:

>> -----Original Message-----
>> From: linuxppc-dev-bounces+leoli=freescale.com at ozlabs.org
>> [mailto:linuxppc-dev-bounces+leoli=freescale.com at ozlabs.org]
>> On Behalf Of Anton Vorontsov
>> Sent: Sunday, January 11, 2009 11:30 PM
>> To: Kumar Gala
>> Cc: linuxppc-dev at ozlabs.org
>> Subject: [PATCH] powerpc/83xx: Make serial ports work on
>> MPC8315E-RDB w/FSL U-Boots
>>
>> FSL U-Boots use /soc8315 at e0000000 node to search and fixup
>> serial nodes' clock-frequency properties. Though in upstream
>> kernels we use new naming convention -- for IMMR address
>> space dts files specify /immr at e0000000 nodes.
>>
>> This makes FSL U-Boots fail to fixup the clock frequencies,
>> and that leads to serial ports misbehaviour. We can
>> workaround the issue by filling the clock frequency values manually.
>
> Freescale BSP is for customer who needs the out-of-box experience.   
> It's
> better tested, but doesn't update very frequently.  I would suggest  
> the
> customer to use the upstream u-boot, if they decide to use latest
> upstream kernel.
>
> - Leo

Agreed.  However I don't think there is any harm w/the patch as  
upstream u-boot will update the property.

- k