Re: [PATCH 2/3] arm64: dts: imx8mn-tqma8mqnl: restrict clock for SPI-NOR flash

[Alexander Stein]

Hi Fabio,

Am Dienstag, 6. Oktober 2026, 15:59:22 Mitteleuropäische Sommerzeit schrieb Fabio Estevam:
> Hi Alexander,
> 
> On Tue, Oct 6, 2026 at 10:50 AM Alexander Stein
> <alexander.stein@xxxxxxxxxxxxxxx> wrote:
> >
> > Am Dienstag, 6. Oktober 2026, 15:46:50 Mitteleuropäische Sommerzeit schrieb Frank Li:
> > > On Tue, Oct 06, 2026 at 03:25:10PM +0200, Alexander Stein wrote:
> > > > From: Markus Niebel <Markus.Niebel@xxxxxxxxxxxxxxx>
> > > >
> > > > The FlexSPI controller uses quad SPI with internal clock recovery.
> > > > The clock is therefore restricted to 66.666666 MHz according to
> > > > data sheet.
> > >
> > > Which datasheet? I suppose NOR flash datasheet, can you provide link
> > > here.
> >
> > The i.MX8M Nano data sheet Rev 5 09/2022 section 3.9.1.1 "SDR mode with
> > FlexSPIn_MCR0[RXCLKSRC] = 0x0, 0x1, 0x2" Table 55. "FlexSPI input timing
> > in SDR mode where FlexSPIn_MCR0[RXCLKSRC] = 0x0" lists 66 Mhz maximum for
> > "Frequency of operation".
> 
> From the commit log, I also got the impression you were referring to
> the SPI NOR datasheet.
> 
> Please clarify that in v2.
> 
> Also, shouldn't all patches in the series contain a Fixes: tag?

Thanks for the feedback, I'll adjust the commit message in v2 and
add a Fixes: tag as well.

Best regards
Alexander
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