Add bindings for mtk-devapc. Signed-off-by: Neal Liu <neal.liu@xxxxxxxxxxxx> --- .../devicetree/bindings/soc/mediatek/devapc.yaml | 82 ++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/mediatek/devapc.yaml diff --git a/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml b/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml new file mode 100644 index 0000000..f08243e --- /dev/null +++ b/Documentation/devicetree/bindings/soc/mediatek/devapc.yaml @@ -0,0 +1,82 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# # Copyright 2020 MediaTek Inc. +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/soc/mediatek/devapc.yaml#"; +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; + +title: MediaTek Device Access Permission Control driver + +description: | + MediaTek bus fabric provides TrustZone security support and data + protection to prevent slaves from being accessed by unexpected masters. + The security violation is logged and sent to the processor for further + analysis and countermeasures. + +maintainers: + - Neal Liu <neal.liu@xxxxxxxxxxxx> + +properties: + compatible: + enum: + - mediatek,mt6779-devapc + + reg: + description: The base address of devapc register bank + maxItems: 1 + + interrupts: + description: A single interrupt specifier + maxItems: 1 + + clocks: + description: Contains module clock source and clock names + maxItems: 1 + + clock-names: + description: Names of the clocks list in clocks property + maxItems: 1 + + mediatek-slv_type_num: + description: Numbers of slave type in mediatek platform + maxItems: 1 + + mediatek-vio_dbgs: + description: The mask bit and start bit of devapc violation debug registers + maxItems: 5 + + mediatek-pds_offset: + description: The offset of devapc pds registers + maxItems: 1 + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - mediatek-slv_type_num + - mediatek-vio_dbgs + - mediatek-pds_offset + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/mt6779-clk.h> + + devapc: devapc@10207000 { + compatible = "mediatek,mt6779-devapc"; + reg = <0x10207000 0x1000>; + interrupts = <GIC_SPI 168 IRQ_TYPE_LEVEL_LOW>; + clocks = <&infracfg_ao CLK_INFRA_DEVICE_APC>; + clock-names = "devapc-infra-clock"; + + mediatek-slv_type_num = /bits/ 8 <1>; + mediatek-vio_dbgs = <0x0000FFFF 0x0>, + <0x003F0000 0x10>, + <0x00400000 0x16>, + <0x00800000 0x17>, + <0x0F000000 0x18>; + mediatek-pds_offset = <0x0 0x400 0x900 0x904 + 0xF00 0xF10 0xF14 0xF20>; + }; -- 1.7.9.5
