[PATCH/RFT renesas-devel] arm64: dts: ulcb: Set drive-strength for ravb pins
Simon Horman
horms at verge.net.au
Sun May 14 23:57:44 PDT 2017
On Fri, May 12, 2017 at 04:39:03PM +0200, Geert Uytterhoeven wrote:
> Hi Simon,
>
> On Tue, May 2, 2017 at 12:30 PM, Simon Horman
> <horms+renesas at verge.net.au> wrote:
> > The EthernetAVB should not depend on the bootloader to setup correct
> > drive-strength values. Values for drive-strength where found by
> > examining the registers after the bootloader has configured the
> > registers and successfully used the EthernetAVB.
> >
> > Based on:
> > * commit 7d73a4da2681 ("arm64: dts: r8a7795: salvator-x: Set drive-strength
> > for ravb pins")
> > * commit 4903987033be ("arm64: dts: r8a7796: salvator-x: Set drive-strength
> > for ravb pins")
> >
> > Cc: Geert Uytterhoeven <geert+renesas at glider.be>
> > Cc: Niklas Söderlund <niklas.soderlund+renesas at ragnatech.se>
> > Signed-off-by: Simon Horman <horms+renesas at verge.net.au>
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
>
> > * Compile tested only due to lack of hardware access
>
> So how did you examine the registers? ;-)
You got me there: copy-paste gone wrong.
> Hence I examined the registers myself:
> - H3ULCB has the same register settings as Salvator-X with H3 ES1.0
> - M3ULCB has the same register settings as Salvator-X with M3-W ES1.0
> or H3 ES2.0.
That was my assumption, which is what I should have written.
But as you have checked - thanks for that - I will leave the changelog
as-is and queue up the patch.
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