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authorOlof Johansson <olof@lixom.net>2017-03-21 17:33:38 -0700
committerOlof Johansson <olof@lixom.net>2017-03-21 17:33:38 -0700
commita618a7349f1947c775200c83ccfaeae681c5dbcb (patch)
treeaea183a3ab8831dc65bfd4900b4d408b7e1bf2dd /Documentation/devicetree
parent4495c08e84729385774601b5146d51d9e5849f81 (diff)
parent11282a49b735ad7f4cea187de2b8dc5489343e4b (diff)
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Merge tag 'reset-for-4.12-1' of git://git.pengutronix.de/git/pza/linux into next/drivers
Reset controller changes for v4.12 - make reset drivers with bool Kconfig options explicitly non-modular - fix uniphier non-static symbol warnings - fix socfpga nr_resets property - new drivers for the Arria10 and i.MX7 system reset controllers - fix sunxi 64-bit compilation * tag 'reset-for-4.12-1' of git://git.pengutronix.de/git/pza/linux: reset: sunxi: fix for 64-bit compilation reset: Add Altera Arria10 SR Reset Controller dt-bindings: reset: a10sr: Add Arria10 SR Reset Controller offsets reset: Add i.MX7 SRC reset driver reset-socfpga: Fix nr_resets property reset: uniphier: fix non static symbol warnings reset: pistachio: make it explicitly non-modular reset: ath79: make it explicitly non-modular reset: oxnas: make it explicitly non-modular reset: meson: make it explicitly non-modular Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'Documentation/devicetree')
-rw-r--r--Documentation/devicetree/bindings/reset/fsl,imx7-src.txt47
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+Freescale i.MX7 System Reset Controller
+======================================
+
+Please also refer to reset.txt in this directory for common reset
+controller binding usage.
+
+Required properties:
+- compatible: Should be "fsl,imx7-src", "syscon"
+- reg: should be register base and length as documented in the
+ datasheet
+- interrupts: Should contain SRC interrupt
+- #reset-cells: 1, see below
+
+example:
+
+src: reset-controller@30390000 {
+ compatible = "fsl,imx7d-src", "syscon";
+ reg = <0x30390000 0x2000>;
+ interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
+ #reset-cells = <1>;
+};
+
+
+Specifying reset lines connected to IP modules
+==============================================
+
+The system reset controller can be used to reset various set of
+peripherals. Device nodes that need access to reset lines should
+specify them as a reset phandle in their corresponding node as
+specified in reset.txt.
+
+Example:
+
+ pcie: pcie@33800000 {
+
+ ...
+
+ resets = <&src IMX7_RESET_PCIEPHY>,
+ <&src IMX7_RESET_PCIE_CTRL_APPS_EN>;
+ reset-names = "pciephy", "apps";
+
+ ...
+ };
+
+
+For list of all valid reset indicies see
+<dt-bindings/reset/imx7-reset.h>
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