On Wednesday 03 December 2014 01:12:10 Stefan Agner wrote:
> 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
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