[PATCH] ARM: at91/dt: sama5d2: add SFR node
From: Ludovic Desroches <hidden>
Date: 2016-03-17 15:33:57
Also in:
linux-arm-kernel, lkml
Subsystem:
multifunction devices (mfd), open firmware and flattened device tree bindings, the rest · Maintainers:
Lee Jones, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Cyrille Pitchen <redacted> This SFR node is looked up by the I2S controller driver to tune the SFR_I2SCLKSEL register. Signed-off-by: Cyrille Pitchen <redacted> Signed-off-by: Ludovic Desroches <redacted> --- Documentation/devicetree/bindings/arm/atmel-at91.txt | 2 +- arch/arm/boot/dts/sama5d2.dtsi | 5 +++++ include/linux/mfd/syscon/atmel-sfr.h | 18 ++++++++++++++++++ 3 files changed, 24 insertions(+), 1 deletion(-) create mode 100644 include/linux/mfd/syscon/atmel-sfr.h
diff --git a/Documentation/devicetree/bindings/arm/atmel-at91.txt b/Documentation/devicetree/bindings/arm/atmel-at91.txt
index 7fd64ec..550fd66 100644
--- a/Documentation/devicetree/bindings/arm/atmel-at91.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-at91.txt@@ -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 {
diff --git a/arch/arm/boot/dts/sama5d2.dtsi b/arch/arm/boot/dts/sama5d2.dtsi
index 78996bd..36bb29c 100644
--- a/arch/arm/boot/dts/sama5d2.dtsi
+++ b/arch/arm/boot/dts/sama5d2.dtsi@@ -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>;
diff --git a/include/linux/mfd/syscon/atmel-sfr.h b/include/linux/mfd/syscon/atmel-sfr.h
new file mode 100644
index 0000000..2f9bb98
--- /dev/null
+++ b/include/linux/mfd/syscon/atmel-sfr.h@@ -0,0 +1,18 @@ +/* + * Atmel SFR (Special Function Registers) register offsets and bit definitions. + * + * Copyright (C) 2016 Atmel + * + * Author: Ludovic Desroches <ludovic.desroches-AIFe0yeh4nAAvxtiuMwx3w@public.gmane.org> + * + * 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 */
--
2.5.0
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