[U-Boot] [PATCH 3/3] mtd: rawnand: denali: Do not reset the block on SoCFPGA

Marek Vasut marex at denx.de
Tue Nov 26 09:10:23 UTC 2019


On 11/26/19 10:07 AM, Masahiro Yamada wrote:
> On Tue, Nov 26, 2019 at 6:01 PM Marek Vasut <marex at denx.de> wrote:
>>
>> On 11/26/19 9:46 AM, Masahiro Yamada wrote:
>>> On Tue, Nov 26, 2019 at 5:23 PM Marek Vasut wrote:
>>>>
>>>> On 11/26/19 3:47 AM, Masahiro Yamada wrote:
>>>>> On Thu, Nov 21, 2019 at 6:38 AM Marek Vasut wrote:
>>>>>>
>>>>>> Legacy kernel versions for SoCFPGA may not implement proper reset
>>>>>> handling.
>>>>>
>>>>> What is "legacy kernel versions" ?
>>>>
>>>> Anything older than 5.x , which got proper reset handling, finally.
>>>
>>>
>>> Really?
>>> Could you tell the commit ID?
>>
>> commit 37f7453a4b7aa3e1d1608edeb500b105257ee945
>>     ARM: dts: socfpga: update missing reset property peripherals
>>
>> commit 1c909b2dfe6a21de2c24dc1c1405593e40e3a88c
>>     ARM: dts: socfpga: update more missing reset properties
> 
> 
> These are just DT updates.
> 
> I do not see any proper reset handling in drivers/mtd/nand/raw/denali*.c

Yes, DT updates which actually wire the reset to the IP so it can be
toggled.

> I am curious how the NAND reset is working in your kernel.

It was not working at all until those patches were in.


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