[PATCH v2 1/2] dt-bindings: devapc: add bindings for mtk-devapc

Neal Liu
2020-07-09T09:13:15Z

Add bindings for mtk-devapc.

Signed-off-by: Neal Liu <neal.liu@mediatek.com>
---
.../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@mediatek.com>
+
+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