Re: [RFC Patch v1 52/55] ARC: Support for single cycle Close CoupledMem (CCM)

From: Vineet Gupta
Date: Thu Jan 17 2013 - 00:12:12 EST


On Monday 12 November 2012 07:40 PM, Arnd Bergmann wrote:
> On Monday 12 November 2012, Vineet.Gupta1@xxxxxxxxxxxx wrote:
>> +config ARC_DCCM_SZ
>> + int "DCCM Size in KB"
>> + default "64"
>> + depends on ARC_HAS_DCCM
>> +
>> +config ARC_DCCM_BASE
>> + hex "DCCM map address"
>> + default "0xA0000000"
>> + depends on ARC_HAS_DCCM
>> +
>
> I suppose these should be configured from the device tree at boot time, not
> during the build process.
>
> I also wonder if the interface should be unified with what we use for
> accessing the sram on some of the ARM platforms.
>
> Arnd
>

Actually in ARC Port these are used in Linker script to layout the kernel
code/data at the addr where these hardware blocks are wired up. So can't be done
at runtime.

-Vineet
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