[PATCH 11/12] ARM: dts: add support for Vybrid running on Cortex-M4
From: arnd@arndb.de (Arnd Bergmann)
Date: 2014-12-03 11:04:11
Also in:
linux-devicetree, lkml
On Wednesday 03 December 2014 01:12:10 Stefan Agner wrote:
quoted hunk ↗ jump to hunk
diff --git a/arch/arm/boot/dts/vf610m4-colibri.dts b/arch/arm/boot/dts/vf610m4-colibri.dts new file mode 100644 index 0000000..051ee0f --- /dev/null +++ b/arch/arm/boot/dts/vf610m4-colibri.dts@@ -0,0 +1,52 @@ +/* + * Device tree for Colibri VF61 Cortex-M4 support + * + * Copyright 2014 Stefan Agner + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +/dts-v1/; +#include "vf610m4.dtsi" + +/ { + model = "VF610 Cortex-M4"; + compatible = "fsl,vf610m4"; + + chosen { + bootargs = "console=ttyLP2,115200 ihash_entries=64 dhash_entries=64 earlyprintk clk_ignore_unused init=/linuxrc rw"; + }; +
Starting with v3.19, you should be able to use the earlycon framework on arm32, so it would be better to replace earlyprintk with earlycon here and add a stdout-path property in chosen that points to the console uart. 64 hash table entries sounds extremely small, doesn't that impact performance? If you have 50MB of actual RAM available, I don't think you need that. Arnd