new file mode 100644
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/arm,pl353-smc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ARM PL353 Static Memory Controller (SMC) device-tree bindings
+
+maintainers:
+ - Miquel Raynal <miquel.raynal@bootlin.com>
+ - Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com>
+
+description:
+ The PL353 Static Memory Controller is a bus where you can connect two kinds
+ of memory interfaces, which are NAND and memory mapped interfaces (such as
+ SRAM or NOR).
+
+# We need a select here so we don't match all nodes with 'arm,primecell'
+select:
+ properties:
+ compatible:
+ contains:
+ const: arm,pl353-smc-r2p1
+ required:
+ - compatible
+
+properties:
+ $nodename:
+ pattern: "^memory-controller@[0-9a-f]+$"
+
+ compatible:
+ items:
+ - const: arm,pl353-smc-r2p1
+ - const: arm,primecell
+
+ "#address-cells":
+ const: 2
+
+ "#size-cells":
+ const: 1
+
+ reg:
+ items:
+ - description:
+ Configuration registers for the host and sub-controllers.
+ The three chip select regions are defined in 'ranges'.
+
+ clocks:
+ items:
+ - description: clock for the memory device bus
+ - description: main clock of the SMC
+
+ clock-names:
+ items:
+ - const: memclk
+ - const: apb_pclk
+
+ ranges:
+ minItems: 1
+ maxItems: 3
+ description: |
+ Memory bus areas for interacting with the devices. Reflects
+ the memory layout with four integer values following:
+ <cs-number> 0 <offset> <size>
+ items:
+ - description: NAND bank 0
+ - description: NOR/SRAM bank 0
+ - description: NOR/SRAM bank 1
+
+ interrupts: true
+
+patternProperties:
+ "@[0-3],[a-f0-9]+$":
+ type: object
+ description: |
+ The child device node represents the controller connected to the SMC
+ bus. The controller can be a NAND controller or a pair of any memory
+ mapped controllers such as NOR and SRAM controllers.
+
+ properties:
+ compatible:
+ description:
+ Compatible of memory controller.
+
+ reg:
+ items:
+ - items:
+ - description: |
+ Chip-select ID, as in the parent range property.
+ minimum: 0
+ maximum: 2
+ - description: |
+ Offset of the memory region requested by the device.
+ - description: |
+ Length of the memory region requested by the device.
+
+ required:
+ - compatible
+ - reg
+
+required:
+ - compatible
+ - reg
+ - clock-names
+ - clocks
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ smcc: memory-controller@e000e000 {
+ compatible = "arm,pl353-smc-r2p1", "arm,primecell";
+ reg = <0xe000e000 0x0001000>;
+ clock-names = "memclk", "apb_pclk";
+ clocks = <&clkc 11>, <&clkc 44>;
+ ranges = <0x0 0x0 0xe1000000 0x1000000 /* Nand CS region */
+ 0x1 0x0 0xe2000000 0x2000000 /* SRAM/NOR CS0 region */
+ 0x2 0x0 0xe4000000 0x2000000>; /* SRAM/NOR CS1 region */
+ #address-cells = <2>;
+ #size-cells = <1>;
+
+ nfc0: nand-controller@0,0 {
+ compatible = "arm,pl353-nand-r2p1";
+ reg = <0 0 0x1000000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
deleted file mode 100644
@@ -1,45 +0,0 @@
-Device tree bindings for ARM PL353 static memory controller
-
-PL353 Static Memory Controller is a bus where you can connect two kinds
-of memory interfaces: NAND and memory mapped interfaces (such as SRAM or NOR).
-
-Required properties:
-- compatible : Should be "arm,pl353-smc-r2p1", "arm,primecell".
-- reg : SMC controller and sub-controllers configuration
- registers.
-- clock-names : List of input clock names - "memclk", "apb_pclk"
- (See clock bindings for details).
-- clocks : Clock phandles (see clock bindings for details).
-- address-cells : Must be 2.
-- size-cells : Must be 1.
-- ranges : Memory bus areas for interacting with the devices.
- Encodes CS to memory region association.
-
-The child device node represents the controller connected to the SMC
-bus. Only one between: NAND controller, NOR controller and SRAM controller
-is allowed in a single system.
-
-Required device node properties:
-
-- reg: Contains the chip-select id, the offset and the length
- of the memory region requested by the device.
-
-Example:
- smcc: memory-controller@e000e000 {
- compatible = "arm,pl353-smc-r2p1", "arm,primecell";
- clock-names = "memclk", "apb_pclk";
- clocks = <&clkc 11>, <&clkc 44>;
- reg = <0xe000e000 0x1000>;
- #address-cells = <2>;
- #size-cells = <1>;
- ranges = <0x0 0x0 0xe1000000 0x1000000 /* Nand CS region */
- 0x1 0x0 0xe2000000 0x2000000 /* SRAM/NOR CS0 region */
- 0x2 0x0 0xe4000000 0x2000000>; /* SRAM/NOR CS1 region */
-
- nfc0: nand-controller@0,0 {
- compatible = "arm,pl353-nand-r2p1";
- reg = <0 0 0x1000000>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
- };
Convert this binding file to yaml schema. Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> --- .../memory-controllers/arm,pl353-smc.yaml | 131 ++++++++++++++++++ .../bindings/memory-controllers/pl353-smc.txt | 45 ------ 2 files changed, 131 insertions(+), 45 deletions(-) create mode 100644 Documentation/devicetree/bindings/memory-controllers/arm,pl353-smc.yaml delete mode 100644 Documentation/devicetree/bindings/memory-controllers/pl353-smc.txt