Re: [PATCH 1/4] arm64: dts: marvell: espressobin-ultra: enable UART output by default

On Tue, Sep 28, 2021 at 5:13 PM Pali Rohár [off-list ref] wrote:

On Monday 27 September 2021 17:41:56 Robert Marko wrote:

quoted

Since Espressobin Ultra board has a microUSB port
with the onboard USB to UART connected to it to be
used as a debug UART it makes no sense to require
the bootloader to pass console args to the kernel in
order to get console working.

So, use the "stdout-path" property to enable the UART
output on the microUSB port by default.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
---
 arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts
index c5eb3604dd5b..c1770ceff3c1 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin-ultra.dts

@@ -15,6 +15,10 @@ / {
      compatible = "globalscale,espressobin-ultra", "marvell,armada3720",
                   "marvell,armada3710";

+     chosen {
+             stdout-path = "serial0:115200n8";
+     };
+

This code is duplication of common espressobin code from
armada-3720-espressobin.dtsi file:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dtsi

Ahh yes, I don't know why was it not working by default then.
Sorry for the noise, I will drop this patch.

Regards,
Robert

quoted

      aliases {
              /* ethernet1 is WAN port */
              ethernet1 = &switch0port5;
--
2.31.1

-- 
Robert Marko
Staff Embedded Linux Engineer
Sartura Ltd.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko@sartura.hr
Web: www.sartura.hr

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