[lkml]   [2020]   [Sep]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 1/8] arm64: dts: meson: update spifc node on Khadas VIM2 meson-gxm-khadas-vim2
On 25/09/2020 09:51, Martin Blumenstingl wrote:
> Hi Artem,
> On Fri, Sep 25, 2020 at 5:30 AM Artem Lapkin <> wrote:
>> 1) The VIM2 Boards use w25q128 spi chip only not w25q32 or w25q16
>> it's not really seriously becouse have 'jedec,spi-nor' which
>> have auto chips identifications
> according to the "VIM2 - Transitioning From v1.2 to v1.4" document [0]
> (page 7) both board revisions are using different SPI flash sizes
> for which board revision are your changes?

Indeed, if you changed the flash for the v14 VIM2 board, please:
- move arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts into meson-gxm-khadas-vim2.dtsi leaving only the
root compatible, model and the v12 spi flash model&size into the meson-gxm-khadas-vim2.dts file
- add "khadas,vim2-v14" to amlogic board bindings
- introduce a arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2-v14.dts file adding the
changes (spi flash change, MCU) with a different root compatible & model


>> 2) max-frequency is 104Mhz
> (note to self: according to the w25q16 datasheet it supports a maximum
> clock frequency of 104MHz, so this is fine)
> Best regards,
> Martin

 \ /
  Last update: 2020-09-28 09:55    [W:1.118 / U:0.004 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site