Messages in this thread | | | Date | Fri, 03 Oct 2014 22:15:11 +0200 | From | christophe leroy <> | Subject | Re: [PATCH 2/2] spi: fsl-spi: Allow dynamic allocation of CPM1 parameter RAM |
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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.
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