[U-Boot] [PATCH v3 0/9] sf: Update flash params for supported read commands and sector size

Bin Meng bmeng.cn at gmail.com
Wed Dec 17 09:02:07 CET 2014


Hi Jagan,

On Wed, Dec 17, 2014 at 3:59 PM, Jagan Teki <jagannadh.teki at gmail.com> wrote:
> On 15 December 2014 at 19:21, Bin Meng <bmeng.cn at gmail.com> wrote:
>> Hi Jagan,
>>
>> On Thu, Dec 11, 2014 at 3:40 PM, Bin Meng <bmeng.cn at gmail.com> wrote:
>>> Hi Jagan,
>>>
>>> On Thu, Dec 11, 2014 at 3:26 PM, Jagan Teki <jagannadh.teki at gmail.com> wrote:
>>>> Hi Bin,
>>>>
>>>> On 11 December 2014 at 08:34, Bin Meng <bmeng.cn at gmail.com> wrote:
>>>>> Hi Jagan,
>>>>>
>>>>> On Thu, Dec 11, 2014 at 2:41 AM, Jagan Teki <jagannadh.teki at gmail.com> wrote:
>>>>>> Hi Bin,
>>>>>>
>>>>>> On 10 December 2014 at 18:21, Bin Meng <bmeng.cn at gmail.com> wrote:
>>>>>>> This series update SPI flash supported read commands per datasheet
>>>>>>> in the flash params table, and change flash sector size to 4KiB as
>>>>>>> long as flash supports sector erase (20h) command, to ensure
>>>>>>> 'sf erase offset +len' work on 4KiB boundary instead of 64KiB when
>>>>>>> given SECT_4K.
>>>>>>>
>>>>>>> Changes in v3:
>>>>>>> - Rebase with Jagan's patch series @ http://patchwork.ozlabs.org/patch/419154/
>>>>>>>
>>>>>>>
>>>>>>> Bin Meng (9):
>>>>>>>   sf: Update SST flash params
>>>>>>>   sf: Update Atmel flash params
>>>>>>>   sf: Update EON flash params
>>>>>>>   sf: Update GigaDevice flash params
>>>>>>>   sf: Update Macronix flash params
>>>>>>>   sf: Update Spansion flash params
>>>>>>>   sf: Update Micron flash params
>>>>>>>   sf: Update Winbond flash params
>>>>>>>   sf: Give proper spacing between flash table params
>>>>>>
>>>>>> Thanks for the updates - have you verified these changes?
>>>>>
>>>>> I verified some, but not all of these flash parts. The update is based
>>>>> on flash datasheet, so if something is broken, eg before this series
>>>>> the flash advertises only READ_NORM and after my series it is changed
>>>>> to READ_FULL, and let's say QUAD_IO_FAST is not working, it is very
>>>>> likely that the SPI controller driver has some bugs when supporting
>>>>> QUAD_IO_FAST.
>>>>
>>>> Since these updates were tested before, I will skip these for this PR.
>>>> Will test all the rest (except these) and send the PR soon.
>>>>
>>>> Let me know your inputs?
>>>
>>> I am fine, as long as this PR will not contains other commits which
>>> modify the same sf_params.c to introduce more flash support. We can
>>> test these updates and if everything looks fine, apply these first and
>>> ask other commits to rebase on this series to introduce more flash
>>> support.
>>>
>>
>> Do you have any additional comments about this patch series besides
>> the S25FL128S_64K and S25FL256S_64K sector size? If not, I can send
>> the v4.
>
> I'm thinking about the other flashes too,  since these params were taken from
> previous working and Linux mtd.
>

You mean 'thinking about' or 'testing'? I should say previously they
might not be 100% working as per datasheet some flash params currently
are apparently wrong.

Regards,
Bin


More information about the U-Boot mailing list