[U-Boot] [PATCHv2 1/3] arm: socfpga: add reset manager defines for Arria10

[Dinh Nguyen]

On 01/12/2016 08:04 PM, Marek Vasut wrote:
> On Wednesday, January 13, 2016 at 02:58:42 AM, Chin Liang See wrote:
>> On Tue, 2016-01-12 at 23:16 +0100, Marek Vasut wrote:
>>> On Tuesday, January 12, 2016 at 11:11:42 PM, Dinh Nguyen wrote:
>>>> On 01/12/2016 04:02 PM, Marek Vasut wrote:
>>>>> On Tuesday, January 12, 2016 at 09:56:42 PM,
>>>>> dinguyen at opensource.altera.com
>>>>>
>>>>> wrote:
>>>>>> From: Dinh Nguyen <dinguyen at opensource.altera.com>
>>>>>>
>>>>>> Add the Arria10 reset manager defines that is used in Linux.
>>>>>> Change the
>>>>>> license to SPDX.
>>>>>>
>>>>>> [commit 007bb689b3dbad83cdab0ad192bc6ed0162451e0 from the Linux
>>>>>> kernel]
>>>>>>
>>>>>> Signed-off-by: Dinh Nguyen <dinguyen at opensource.altera.com>
>>>>>
>>>>> Applied all three to u-boot-socfpga/02-arria10 , thanks!
>>>>>
>>>>> btw what's the status of A10 ? What will I be able to compile it
>>>>> (and
>>>>> thus merge the stuff into mainline and ev. use it on actual A10)
>>>>> ? A
>>>>> board would be nice too ;-)
>>>>
>>>> Here is my list of to-do that is left for A10:
>>>>
>>>> - submit SDRAM controller
>>>> - rework FPGA manager for A10
>>>> - port an SPL for A10
>>>>
>>>> I think the most work will be the SDRAM controller as it needs
>>>> quite a
>>>> bit of cleanup. I'm about ~25% through with that.
>>>
>>> Didn't you mention that you use nios2 that magically does that init
>>> for you?
>>> Shall I expect thousands of LoC SDRAM controller driver again or is
>>> there
>>> something "lighter" coming up ? ;-)
>>
>> Yah it should be lighter as all SDRAM configuration now part of
>> bitstream. Driver just need to derive the value from bitstream register
>> and setup the DDR controller. No more DDR handoff.
> 
> Whew :)
> 

While all of the above is true, the *crap* that is in the current
implementation needs to get cleaned up. It's amazing to me how
we(Altera) continue to go down this path of having to do things twice,
instead of trying to upstream first!

>>>> As for HW, I'll see what I can do.
>>>
>>> Don't worry about it too much. I also poked Chin about it some time
>>> ago, but
>>> I dunno where he got with this.
>>
>> I am still working on this. We have limited boards as we will be
>> getting production board in a month time. Dinh, you have any boards to
>> spare? Most of boards here already went into test farms.
> 
> I'll wait for the production ones , no need to hurry :)
> 

That's probably best. I do have an extra Rev A hardware, but trust me,
you don't want to have anything do with that hardware.

Dinh