[PATCH 2/2] spi: fsl-spi: Allow dynamic allocation of CPM1 parameter RAM
christophe.leroy at c-s.fr
Sat Oct 4 06:15:11 EST 2014
Le 03/10/2014 16:44, Mark Brown a écrit :
> On Fri, Oct 03, 2014 at 02:56:09PM +0200, Christophe Leroy wrote:
>> +config CPM1_RELOCSPI
>> + bool "Dynamic SPI relocation"
>> + default n
>> + help
>> + On recent MPC8xx (at least MPC866 and MPC885) SPI can be relocated
>> + without micropatch. This activates relocation to a dynamically
>> + allocated area in the CPM Dual port RAM.
>> + When combined with SPI relocation patch (for older MPC8xx) it avoids
>> + the "loss" of additional Dual port RAM space just above the patch,
>> + which might be needed for example when using the CPM QMC.
> Something like this shouldn't be a compile time option. Either it
> should be unconditional or it should be triggered in some system
> specific manner (from DT, from knowing about other users or similar).
Can't be unconditional as older versions of mpc8xx (eg MPC860) don't
support relocation without a micropatch.
I have therefore submitted a v2 based on a DTS compatible property.
Ce courrier électronique ne contient aucun virus ou logiciel malveillant parce que la protection avast! Antivirus est active.
More information about the Linuxppc-dev