[U-Boot] [PATCH 2/4] net: fec_mxc: allow use with cache enabled

[Eric Nelson <eric.nelson@boundarydevices.com>]

On 03/05/2012 08:39 AM, Marek Vasut wrote:
> Dear Eric Nelson,
>
>> On 03/04/2012 06:49 PM, Marek Vasut wrote:
>>>> On 03/02/2012 04:39 PM, Marek Vasut wrote:
>>>>>> +			 * Invalidate data cache over the buffer
>>>>>> +			 */
>>>>>> +			addr = (uint32_t)frame;
>>>>>> +			size = roundup(frame_length,
> CONFIG_FEC_DATA_ALIGNMENT);
>>>>>> +			invalidate_dcache_range(addr, addr + size);
>>>>>
>>>>> DTTO here, frame length might not be aligned properly, or will it be?
>>>>> Network stack must be properly analyzed here.
>>>>
>>>> The hardware won't return an unaligned value here, so this should be
>>>> good.
>>>
>>> Are you sure? You can't receive frame aligned to 8 bytes boundary?
>>
>> Unless I'm missing something, received packet start addresses are defined
>> by the driver in fec_rbd_init(), the code just modified to use memalign,
>> so we're good here.
>
> Ok, that's good then. I'll skim through this driver one more time tonight and
> see what comes out from it.
>
Thanks.

I just sent V2.