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author | Sascha Hauer <s.hauer@pengutronix.de> | 2020-02-14 09:05:53 +0100 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-02-18 08:32:25 +0100 |
commit | 81ce4a7dec8ba066c73692e10634091b14c1e494 (patch) | |
tree | d61574b25fda47711e3efab57c7a5739de477565 /dts/Bindings/arm/sunxi | |
parent | 84b7f86bef670f6751d67131738555fa53ca3f6b (diff) | |
download | barebox-81ce4a7dec8ba066c73692e10634091b14c1e494.tar.gz barebox-81ce4a7dec8ba066c73692e10634091b14c1e494.tar.xz |
dts: update to v5.6-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/arm/sunxi')
-rw-r--r-- | dts/Bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml | 65 | ||||
-rw-r--r-- | dts/Bindings/arm/sunxi/sunxi-mbus.txt | 37 |
2 files changed, 65 insertions, 37 deletions
diff --git a/dts/Bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml b/dts/Bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml new file mode 100644 index 0000000000..9370e64992 --- /dev/null +++ b/dts/Bindings/arm/sunxi/allwinner,sun4i-a10-mbus.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/sunxi/allwinner,sun4i-a10-mbus.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner Memory Bus (MBUS) controller + +maintainers: + - Chen-Yu Tsai <wens@csie.org> + - Maxime Ripard <mripard@kernel.org> + +description: | + The MBUS controller drives the MBUS that other devices in the SoC + will use to perform DMA. It also has a register interface that + allows to monitor and control the bandwidth and priorities for + masters on that bus. + + Each device having to perform their DMA through the MBUS must have + the interconnects and interconnect-names properties set to the MBUS + controller and with "dma-mem" as the interconnect name. + +properties: + "#interconnect-cells": + const: 1 + description: + The content of the cell is the MBUS ID. + + compatible: + enum: + - allwinner,sun5i-a13-mbus + - allwinner,sun8i-h3-mbus + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + dma-ranges: + description: + See section 2.3.9 of the DeviceTree Specification. + +required: + - "#interconnect-cells" + - compatible + - reg + - clocks + - dma-ranges + +additionalProperties: false + +examples: + - | + #include <dt-bindings/clock/sun5i-ccu.h> + + mbus: dram-controller@1c01000 { + compatible = "allwinner,sun5i-a13-mbus"; + reg = <0x01c01000 0x1000>; + clocks = <&ccu CLK_MBUS>; + dma-ranges = <0x00000000 0x40000000 0x20000000>; + #interconnect-cells = <1>; + }; + +... diff --git a/dts/Bindings/arm/sunxi/sunxi-mbus.txt b/dts/Bindings/arm/sunxi/sunxi-mbus.txt deleted file mode 100644 index 2005bb4867..0000000000 --- a/dts/Bindings/arm/sunxi/sunxi-mbus.txt +++ /dev/null @@ -1,37 +0,0 @@ -Allwinner Memory Bus (MBUS) controller - -The MBUS controller drives the MBUS that other devices in the SoC will -use to perform DMA. It also has a register interface that allows to -monitor and control the bandwidth and priorities for masters on that -bus. - -Required properties: - - compatible: Must be one of: - - allwinner,sun5i-a13-mbus - - allwinner,sun8i-h3-mbus - - reg: Offset and length of the register set for the controller - - clocks: phandle to the clock driving the controller - - dma-ranges: See section 2.3.9 of the DeviceTree Specification - - #interconnect-cells: Must be one, with the argument being the MBUS - port ID - -Each device having to perform their DMA through the MBUS must have the -interconnects and interconnect-names properties set to the MBUS -controller and with "dma-mem" as the interconnect name. - -Example: - -mbus: dram-controller@1c01000 { - compatible = "allwinner,sun5i-a13-mbus"; - reg = <0x01c01000 0x1000>; - clocks = <&ccu CLK_MBUS>; - dma-ranges = <0x00000000 0x40000000 0x20000000>; - #interconnect-cells = <1>; -}; - -fe0: display-frontend@1e00000 { - compatible = "allwinner,sun5i-a13-display-frontend"; - ... - interconnects = <&mbus 19>; - interconnect-names = "dma-mem"; -}; |