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ARM: dts: at91: sama5d2: add SFR node

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This SFR node is looked up by the I2S controller driver to tune the
SFR_I2SCLKSEL register.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
This commit is contained in:
Cyrille Pitchen 2016-03-17 17:04:00 +01:00 committed by Nicolas Ferre
parent f55532a0c0
commit c8f26c2696
3 changed files with 24 additions and 1 deletions
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2
Documentation/devicetree/bindings/arm/atmel-at91.txt
View file

@ -155,7 +155,7 @@ elsewhere.
required properties:
- compatible: Should be "atmel,<chip>-sfr", "syscon".
<chip> can be "sama5d3" or "sama5d4".
<chip> can be "sama5d3", "sama5d4" or "sama5d2".
- reg: Should contain registers location and length
sfr@f0038000 {

5
arch/arm/boot/dts/sama5d2.dtsi
View file

@ -973,6 +973,11 @@
status = "disabled";
};
sfr: sfr@f8030000 {
compatible = "atmel,sama5d2-sfr", "syscon";
reg = <0xf8030000 0x98>;
};
flx0: flexcom@f8034000 {
compatible = "atmel,sama5d2-flexcom";
reg = <0xf8034000 0x200>;

18
include/soc/at91/atmel-sfr.h Normal file
View file

@ -0,0 +1,18 @@
/*
* Atmel SFR (Special Function Registers) register offsets and bit definitions.
*
* Copyright (C) 2016 Atmel
*
* Author: Ludovic Desroches <ludovic.desroches@atmel.com>
*
* This program 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.
*/
#ifndef _LINUX_MFD_SYSCON_ATMEL_SFR_H
#define _LINUX_MFD_SYSCON_ATMEL_SFR_H
#define AT91_SFR_I2SCLKSEL 0x90 /* I2SC Register */
#endif /* _LINUX_MFD_SYSCON_ATMEL_SFR_H */