[U-Boot] [PATCH v3] nios2: convert cache flush to use dm cpu data

[Thomas Chou <thomas@wytron.com.tw>]

Hi Marek,

On 10/17/2015 07:00 AM, Marek Vasut wrote:
>> +static void __flush_dcache(unsigned long start, unsigned long end)
>> +{
>> +	unsigned long addr;
>> +
>> +	start &= ~(gd->arch.dcache_line_size - 1);
>> +	end += (gd->arch.dcache_line_size - 1);
>> +	end &= ~(gd->arch.dcache_line_size - 1);
>
> I really don't think we should do this alignment here :-(

The rounding to get flush range is necessary to keep it confirm to the 
interface defined in linux/Documentation/cachetlb.txt.

Removing the rounding and adding "range check and keep" is a violation 
to the common interface.

You cannot agree to the common interface and, at the same time, insist 
on changing the definition by your own.

Best regards,
Thomas