alistair23-linux/arch/arm/boot/dts/vf610-colibri.dtsi
Stefan Agner 6d20b24a2b ARM: dts: vf-colibri: increase NAND clock speed
The NAND flash memory populated on Colibri VF61 allows faster NAND
timings than the flash memory on VF50. Additionally, due to divider
limitations, VF61 did clock the flash even slower than VF50. Assign
the NFC clock in the module specific device trees vf500-colibri.dtsi
and vf610-colibri.dtsi respectively.

This increases raw read speed on Colibri VF61 by about 20%.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2016-04-13 17:47:59 +08:00

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/*
* Copyright 2014 Toradex AG
*
* This file is dual-licensed: you can use it either under the terms
* of the GPL or the X11 license, at your option. Note that this dual
* licensing only applies to this file, and not this project as a
* whole.
*
* a) This file is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This file is distributed in the hope that it will be useful
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* Or, alternatively
*
* b) Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
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* The above copyright notice and this permission notice shall be
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*/
#include "vf610.dtsi"
#include "vf-colibri.dtsi"
/ {
model = "Toradex Colibri VF61 COM";
compatible = "toradex,vf610-colibri_vf61", "fsl,vf610";
memory {
reg = <0x80000000 0x10000000>;
};
};
&nfc {
assigned-clocks = <&clks VF610_CLK_NFC>;
assigned-clock-rates = <50000000>;
};