linux/arch/arm64/boot/dts/marvell/armada-70x0.dtsi
Gregory CLEMENT 73ae5fe8a5 arm64: dts: marvell: add NAND support on the 7040-DB board
The NAND controller used in A7K/A8K is present on the CP110 master part.
It is compatible with the pxa3xx_nand driver but requires the use of the
marvell,armada-8k-nand compatible string due to the need to first enable
the NAND controller.

Add properties to the NAND node to fit the bindings constraints of the
pxa3xx_nand driver and enable the NAND controller.

Add the 'marvell,system-controller' property to the cp110 master NAND
node with a reference to the syscon node. This is new compared to other
boards using the pxa3xx_nand driver and it is needed to be bootloader
independent and enable the NAND controller from the NAND controller
driver itself by writing in these syscon registers.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
[miquel.raynal@free-electrons.com: add NAND ready/busy MPP subnode,
change compatible string to fit the needs of the A7k/A8k SoCs and add
the system controller property]
Signed-off-by: Miquel Raynal <miquel.raynal@free-electrons.com>
2017-09-27 15:34:01 +02:00

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/*
* Copyright (C) 2017 Marvell Technology Group Ltd.
*
* This file is dual-licensed: you can use it either under the terms
* of the GPLv2 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 library 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.
*
* This library 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
* restriction, including without limitation the rights to use,
* copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Device Tree file for the Armada 70x0 SoC
*/
#include "armada-cp110-master.dtsi"
/ {
aliases {
gpio1 = &cpm_gpio1;
gpio2 = &cpm_gpio2;
};
};
&cpm_gpio1 {
status = "okay";
};
&cpm_gpio2 {
status = "okay";
};
&cpm_syscon0 {
cpm_pinctrl: pinctrl {
compatible = "marvell,armada-7k-pinctrl";
nand_pins: nand-pins {
marvell,pins =
"mpp15", "mpp16", "mpp17", "mpp18",
"mpp19", "mpp20", "mpp21", "mpp22",
"mpp23", "mpp24", "mpp25", "mpp26",
"mpp27";
marvell,function = "dev";
};
nand_rb: nand-rb {
marvell,pins = "mpp13";
marvell,function = "nf";
};
};
};