e8917266ae
Another round of removing redundant minItems/maxItems from new schema in the recent merge window. If a property has an 'items' list, then a 'minItems' or 'maxItems' with the same size as the list is redundant and can be dropped. Note that is DT schema specific behavior and not standard json-schema behavior. The tooling will fixup the final schema adding any unspecified minItems/maxItems. This condition is partially checked with the meta-schema already, but only if both 'minItems' and 'maxItems' are equal to the 'items' length. An improved meta-schema is pending. Cc: Stephen Boyd <sboyd@kernel.org> Cc: Joerg Roedel <joro@8bytes.org> Cc: Will Deacon <will@kernel.org> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Cc: Miquel Raynal <miquel.raynal@bootlin.com> Cc: Richard Weinberger <richard@nod.at> Cc: Vignesh Raghavendra <vigneshr@ti.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Alexandre Belloni <alexandre.belloni@bootlin.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com> Cc: Brian Norris <computersforpeace@gmail.com> Cc: Kamal Dasu <kdasu.kdev@gmail.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: linux-clk@vger.kernel.org Cc: iommu@lists.linux-foundation.org Cc: linux-mtd@lists.infradead.org Cc: linux-rtc@vger.kernel.org Cc: linux-usb@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://lore.kernel.org/r/20210713193453.690290-1-robh@kernel.org
131 lines
3.3 KiB
YAML
131 lines
3.3 KiB
YAML
# 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
|
|
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>;
|
|
};
|
|
};
|