diff options
Diffstat (limited to 'Documentation/devicetree/bindings/sram')
| -rw-r--r-- | Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml | 140 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/sram/sunxi-sram.txt | 113 |
2 files changed, 140 insertions, 113 deletions
diff --git a/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml new file mode 100644 index 000000000000..80bac7a182d5 --- /dev/null +++ b/Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml @@ -0,0 +1,140 @@ +# SPDX-License-Identifier: GPL-2.0+ +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sram/allwinner,sun4i-a10-system-control.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Allwinner A10 System Control Device Tree Bindings + +maintainers: + - Chen-Yu Tsai <wens@csie.org> + - Maxime Ripard <mripard@kernel.org> + +description: + The SRAM controller found on most Allwinner devices is represented + by a regular node for the SRAM controller itself, with sub-nodes + representing the SRAM handled by the SRAM controller. + +properties: + "#address-cells": + const: 1 + + "#size-cells": + const: 1 + + compatible: + oneOf: + - const: allwinner,sun4i-a10-sram-controller + deprecated: true + - const: allwinner,sun4i-a10-system-control + - const: allwinner,sun5i-a13-system-control + - items: + - const: allwinner,sun7i-a20-system-control + - const: allwinner,sun4i-a10-system-control + - const: allwinner,sun8i-a23-system-control + - const: allwinner,sun8i-h3-system-control + - const: allwinner,sun50i-a64-sram-controller + deprecated: true + - const: allwinner,sun50i-a64-system-control + - const: allwinner,sun50i-h5-system-control + - items: + - const: allwinner,sun50i-h6-system-control + - const: allwinner,sun50i-a64-system-control + - items: + - const: allwinner,suniv-f1c100s-system-control + - const: allwinner,sun4i-a10-system-control + + reg: + maxItems: 1 + + ranges: true + +patternProperties: + "^sram@[a-z0-9]+": + type: object + + properties: + compatible: + const: mmio-sram + + patternProperties: + "^sram-section?@[a-f0-9]+$": + type: object + + properties: + compatible: + oneOf: + - const: allwinner,sun4i-a10-sram-a3-a4 + - const: allwinner,sun4i-a10-sram-c1 + - const: allwinner,sun4i-a10-sram-d + - const: allwinner,sun50i-a64-sram-c + - items: + - const: allwinner,sun5i-a13-sram-a3-a4 + - const: allwinner,sun4i-a10-sram-a3-a4 + - items: + - const: allwinner,sun7i-a20-sram-a3-a4 + - const: allwinner,sun4i-a10-sram-a3-a4 + - items: + - const: allwinner,sun5i-a13-sram-c1 + - const: allwinner,sun4i-a10-sram-c1 + - items: + - const: allwinner,sun7i-a20-sram-c1 + - const: allwinner,sun4i-a10-sram-c1 + - items: + - const: allwinner,sun8i-a23-sram-c1 + - const: allwinner,sun4i-a10-sram-c1 + - items: + - const: allwinner,sun8i-h3-sram-c1 + - const: allwinner,sun4i-a10-sram-c1 + - items: + - const: allwinner,sun50i-a64-sram-c1 + - const: allwinner,sun4i-a10-sram-c1 + - items: + - const: allwinner,sun50i-h5-sram-c1 + - const: allwinner,sun4i-a10-sram-c1 + - items: + - const: allwinner,sun50i-h6-sram-c1 + - const: allwinner,sun4i-a10-sram-c1 + - items: + - const: allwinner,sun5i-a13-sram-d + - const: allwinner,sun4i-a10-sram-d + - items: + - const: allwinner,sun7i-a20-sram-d + - const: allwinner,sun4i-a10-sram-d + - items: + - const: allwinner,suniv-f1c100s-sram-d + - const: allwinner,sun4i-a10-sram-d + - items: + - const: allwinner,sun50i-h6-sram-c + - const: allwinner,sun50i-a64-sram-c + +required: + - "#address-cells" + - "#size-cells" + - compatible + - reg + +additionalProperties: false + +examples: + - | + system-control@1c00000 { + compatible = "allwinner,sun4i-a10-system-control"; + reg = <0x01c00000 0x30>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + sram_a: sram@00000000 { + compatible = "mmio-sram"; + reg = <0x00000000 0xc000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x00000000 0xc000>; + + emac_sram: sram-section@8000 { + compatible = "allwinner,sun4i-a10-sram-a3-a4"; + reg = <0x8000 0x4000>; + }; + }; + }; diff --git a/Documentation/devicetree/bindings/sram/sunxi-sram.txt b/Documentation/devicetree/bindings/sram/sunxi-sram.txt deleted file mode 100644 index 380246a805f2..000000000000 --- a/Documentation/devicetree/bindings/sram/sunxi-sram.txt +++ /dev/null @@ -1,113 +0,0 @@ -Allwinnner SoC SRAM controllers ------------------------------------------------------ - -The SRAM controller found on most Allwinner devices is represented by -a regular node for the SRAM controller itself, with sub-nodes -reprensenting the SRAM handled by the SRAM controller. - -Controller Node ---------------- - -Required properties: -- compatible : should be: - - "allwinner,sun4i-a10-sram-controller" (deprecated) - - "allwinner,sun4i-a10-system-control" - - "allwinner,sun5i-a13-system-control" - - "allwinner,sun7i-a20-system-control", "allwinner,sun4i-a10-system-control" - - "allwinner,sun8i-a23-system-control" - - "allwinner,sun8i-h3-system-control" - - "allwinner,sun50i-a64-sram-controller" (deprecated) - - "allwinner,sun50i-a64-system-control" - - "allwinner,sun50i-h5-system-control" - - "allwinner,sun50i-h6-system-control", "allwinner,sun50i-a64-system-control" - - "allwinner,suniv-f1c100s-system-control", "allwinner,sun4i-a10-system-control" -- reg : sram controller register offset + length - -SRAM nodes ----------- - -Each SRAM is described using the mmio-sram bindings documented in -Documentation/devicetree/bindings/sram/sram.txt - -Each SRAM will have SRAM sections that are going to be handled by the -SRAM controller as subnodes. These sections are represented following -once again the representation described in the mmio-sram binding. - -The valid sections compatible for A10 are: - - allwinner,sun4i-a10-sram-a3-a4 - - allwinner,sun4i-a10-sram-c1 - - allwinner,sun4i-a10-sram-d - -The valid sections compatible for A13 are: - - allwinner,sun5i-a13-sram-a3-a4, allwinner,sun4i-a10-sram-a3-a4 - - allwinner,sun5i-a13-sram-c1, allwinner,sun4i-a10-sram-c1 - - allwinner,sun5i-a13-sram-d, allwinner,sun4i-a10-sram-d - -The valid sections compatible for A20 are: - - allwinner,sun7i-a20-sram-a3-a4, allwinner,sun4i-a10-sram-a3-a4 - - allwinner,sun7i-a20-sram-c1, allwinner,sun4i-a10-sram-c1 - - allwinner,sun7i-a20-sram-d, allwinner,sun4i-a10-sram-d - -The valid sections compatible for A23/A33 are: - - allwinner,sun8i-a23-sram-c1, allwinner,sun4i-a10-sram-c1 - -The valid sections compatible for H3 are: - - allwinner,sun8i-h3-sram-c1, allwinner,sun4i-a10-sram-c1 - -The valid sections compatible for A64 are: - - allwinner,sun50i-a64-sram-c - - allwinner,sun50i-a64-sram-c1, allwinner,sun4i-a10-sram-c1 - -The valid sections compatible for H5 are: - - allwinner,sun50i-h5-sram-c1, allwinner,sun4i-a10-sram-c1 - -The valid sections compatible for H6 are: - - allwinner,sun50i-h6-sram-c, allwinner,sun50i-a64-sram-c - - allwinner,sun50i-h6-sram-c1, allwinner,sun4i-a10-sram-c1 - -The valid sections compatible for F1C100s are: - - allwinner,suniv-f1c100s-sram-d, allwinner,sun4i-a10-sram-d - -Devices using SRAM sections ---------------------------- - -Some devices need to request to the SRAM controller to map an SRAM for -their exclusive use. - -The relationship between such a device and an SRAM section is -expressed through the allwinner,sram property, that will take a -phandle and an argument. - -This valid values for this argument are: - - 0: CPU - - 1: Device - -Example -------- -system-control@1c00000 { - compatible = "allwinner,sun4i-a10-system-control"; - reg = <0x01c00000 0x30>; - #address-cells = <1>; - #size-cells = <1>; - ranges; - - sram_a: sram@00000000 { - compatible = "mmio-sram"; - reg = <0x00000000 0xc000>; - #address-cells = <1>; - #size-cells = <1>; - ranges = <0 0x00000000 0xc000>; - - emac_sram: sram-section@8000 { - compatible = "allwinner,sun4i-a10-sram-a3-a4"; - reg = <0x8000 0x4000>; - }; - }; -}; - -emac: ethernet@1c0b000 { - compatible = "allwinner,sun4i-a10-emac"; - ... - - allwinner,sram = <&emac_sram 1>; -}; |