diff mbox series

[v2] arm64: dts: rockchip: sapphire: add chosen node

Message ID 20181030145941.15975-1-vicencb@gmail.com (mailing list archive)
State New, archived
Headers show
Series [v2] arm64: dts: rockchip: sapphire: add chosen node | expand

Commit Message

Vicente Bergas Oct. 30, 2018, 2:59 p.m. UTC 
In order to use earlycon, the stdout-path property needs to be set in the chosen node.

---

Hi Heiko,

> shouldn't that maybe live in the shared .dtsi instead?
this v2 applies the change in the .dtsi as suggested.

> I do guess the excavator will have the same default serial?
Well, in fact it seems to me that serial2 is set as the default serial port
at the chip level, although there are some exceptions. But on the other hand
the baud rate is more free form.
So, as suggested, it could be a good compromise to put it at the
daugther-card level.

The point for working around the kexec bug is still valid, but with
the update from the maintainer it is not enough to fix everything:
http://lists.infradead.org/pipermail/kexec/2018-October/021762.html

Regards,
  Vicenç.

Signed-off-by: Vicente Bergas <vicencb@gmail.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Heiko Stuebner Oct. 30, 2018, 8:34 p.m. UTC | #1 
Am Dienstag, 30. Oktober 2018, 15:59:41 CET schrieb Vicente Bergas:
> In order to use earlycon, the stdout-path property needs to be set in the chosen node.
> 
> ---
> 
> Hi Heiko,
> 
> > shouldn't that maybe live in the shared .dtsi instead?
> this v2 applies the change in the .dtsi as suggested.
> 
> > I do guess the excavator will have the same default serial?
> Well, in fact it seems to me that serial2 is set as the default serial port
> at the chip level, although there are some exceptions. But on the other hand
> the baud rate is more free form.
> So, as suggested, it could be a good compromise to put it at the
> daugther-card level.
> 
> The point for working around the kexec bug is still valid, but with
> the update from the maintainer it is not enough to fix everything:
> http://lists.infradead.org/pipermail/kexec/2018-October/021762.html
> 
> Regards,
>   Vicenç.
> 
> Signed-off-by: Vicente Bergas <vicencb@gmail.com>

applied for 4.21

Thanks
Heiko
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
index 5421e2376..2eb6489d4 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-sapphire.dtsi
@@ -11,6 +11,10 @@ 
 / {
 	compatible = "rockchip,rk3399-sapphire", "rockchip,rk3399";
 
+	chosen {
+		stdout-path = "serial2:1500000n8";
+	};
+
 	backlight: backlight {
 		compatible = "pwm-backlight";
 		brightness-levels = <