Thread (1 message) 1 message, 1 author, 2016-02-10

Re: [PATCH 1/2] ARM: tegra: Add stdout-path for various boards

From: Alexandre Courbot <hidden>
Date: 2016-02-10 00:46:47
Also in: linux-tegra

On Tue, Feb 9, 2016 at 10:51 PM, Jon Hunter [off-list ref] wrote:
For Tegra boards, the device-tree alias serial0 is used for the console
and so add the stdout-path information so that the console no longer
needs to be passed via the kernel boot parameters.

This has been tested on boards, tegra20-trimslice, tegra30-beaver,
tegra114-dalmore and tegra124-jetson-tk1.

Signed-off-by: Jon Hunter <redacted>
---

The only boards that I have not modified are tegra114-roth and
tegra114-tn7 because these boards have two entries for console
in the *.dts file. AFAICT we cannot suppport multiple consoles
via the stdout-path and if a console is specified by the kernel
boot parameters then this sets the kernel variable
"console_set_on_cmdline" and prevents the stdout-path console
being registered. If there is a better way to handle these boards
via device-tree let me know.
These two boards require a hardcoded command-line in the DT anyway,
since the bootloader's command-line cannot be overridden (due to bad
bootloader design). So it seems ok to me to keep specifying the boot
console there for them.
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