dt-bindings: ata: ahci-ceva: convert to yaml
[ Upstream commitf2fb1b50fb] Convert the ahci-ceva doc to yaml. Signed-off-by: Piyush Mehta <piyush.mehta@xilinx.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20220620073717.3079-1-piyush.mehta@xilinx.com Stable-dep-of:a784452872("dt-bindings: ata: ahci-ceva: Cover all 4 iommus entries") Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Piyush Mehta
Greg Kroah-Hartman
Родитель
f191711553
Коммит
7ef9045fe7
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Binding for CEVA AHCI SATA Controller
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Required properties:
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- reg: Physical base address and size of the controller's register area.
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- compatible: Compatibility string. Must be 'ceva,ahci-1v84'.
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- clocks: Input clock specifier. Refer to common clock bindings.
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- interrupts: Interrupt specifier. Refer to interrupt binding.
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- ceva,p0-cominit-params: OOB timing value for COMINIT parameter for port 0.
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- ceva,p1-cominit-params: OOB timing value for COMINIT parameter for port 1.
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The fields for the above parameter must be as shown below:
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ceva,pN-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>;
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CINMP : COMINIT Negate Minimum Period.
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CIBGN : COMINIT Burst Gap Nominal.
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CIBGMX: COMINIT Burst Gap Maximum.
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CIBGMN: COMINIT Burst Gap Minimum.
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- ceva,p0-comwake-params: OOB timing value for COMWAKE parameter for port 0.
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- ceva,p1-comwake-params: OOB timing value for COMWAKE parameter for port 1.
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The fields for the above parameter must be as shown below:
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ceva,pN-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>;
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CWBGMN: COMWAKE Burst Gap Minimum.
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CWBGMX: COMWAKE Burst Gap Maximum.
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CWBGN: COMWAKE Burst Gap Nominal.
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CWNMP: COMWAKE Negate Minimum Period.
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- ceva,p0-burst-params: Burst timing value for COM parameter for port 0.
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- ceva,p1-burst-params: Burst timing value for COM parameter for port 1.
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The fields for the above parameter must be as shown below:
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ceva,pN-burst-params = /bits/ 8 <BMX BNM SFD PTST>;
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BMX: COM Burst Maximum.
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BNM: COM Burst Nominal.
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SFD: Signal Failure Detection value.
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PTST: Partial to Slumber timer value.
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- ceva,p0-retry-params: Retry interval timing value for port 0.
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- ceva,p1-retry-params: Retry interval timing value for port 1.
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The fields for the above parameter must be as shown below:
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ceva,pN-retry-params = /bits/ 16 <RIT RCT>;
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RIT: Retry Interval Timer.
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RCT: Rate Change Timer.
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Optional properties:
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- ceva,broken-gen2: limit to gen1 speed instead of gen2.
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- phys: phandle for the PHY device
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- resets: phandle to the reset controller for the SATA IP
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Examples:
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ahci@fd0c0000 {
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compatible = "ceva,ahci-1v84";
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reg = <0xfd0c0000 0x200>;
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interrupt-parent = <&gic>;
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interrupts = <0 133 4>;
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clocks = <&clkc SATA_CLK_ID>;
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ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
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ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
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ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
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ceva,p0-retry-params = /bits/ 16 <0x0216 0x7F06>;
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ceva,p1-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
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ceva,p1-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
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ceva,p1-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
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ceva,p1-retry-params = /bits/ 16 <0x0216 0x7F06>;
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ceva,broken-gen2;
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phys = <&psgtr 1 PHY_TYPE_SATA 1 1>;
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resets = <&zynqmp_reset ZYNQMP_RESET_SATA>;
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};
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@ -0,0 +1,189 @@
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/ata/ceva,ahci-1v84.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Ceva AHCI SATA Controller
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maintainers:
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- Piyush Mehta <piyush.mehta@xilinx.com>
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description: |
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The Ceva SATA controller mostly conforms to the AHCI interface with some
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special extensions to add functionality, is a high-performance dual-port
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SATA host controller with an AHCI compliant command layer which supports
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advanced features such as native command queuing and frame information
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structure (FIS) based switching for systems employing port multipliers.
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properties:
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compatible:
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const: ceva,ahci-1v84
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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dma-coherent: true
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interrupts:
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maxItems: 1
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iommus:
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maxItems: 1
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power-domains:
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maxItems: 1
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ceva,p0-cominit-params:
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$ref: /schemas/types.yaml#/definitions/uint8-array
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description: |
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OOB timing value for COMINIT parameter for port 0.
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The fields for the above parameter must be as shown below:-
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ceva,p0-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>;
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items:
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- description: CINMP - COMINIT Negate Minimum Period.
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- description: CIBGN - COMINIT Burst Gap Nominal.
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- description: CIBGMX - COMINIT Burst Gap Maximum.
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- description: CIBGMN - COMINIT Burst Gap Minimum.
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ceva,p0-comwake-params:
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$ref: /schemas/types.yaml#/definitions/uint8-array
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description: |
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OOB timing value for COMWAKE parameter for port 0.
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The fields for the above parameter must be as shown below:-
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ceva,p0-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>;
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items:
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- description: CWBGMN - COMWAKE Burst Gap Minimum.
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- description: CWBGMX - COMWAKE Burst Gap Maximum.
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- description: CWBGN - COMWAKE Burst Gap Nominal.
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- description: CWNMP - COMWAKE Negate Minimum Period.
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ceva,p0-burst-params:
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$ref: /schemas/types.yaml#/definitions/uint8-array
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description: |
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Burst timing value for COM parameter for port 0.
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The fields for the above parameter must be as shown below:-
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ceva,p0-burst-params = /bits/ 8 <BMX BNM SFD PTST>;
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items:
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- description: BMX - COM Burst Maximum.
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- description: BNM - COM Burst Nominal.
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- description: SFD - Signal Failure Detection value.
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- description: PTST - Partial to Slumber timer value.
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ceva,p0-retry-params:
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$ref: /schemas/types.yaml#/definitions/uint16-array
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description: |
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Retry interval timing value for port 0.
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The fields for the above parameter must be as shown below:-
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ceva,p0-retry-params = /bits/ 16 <RIT RCT>;
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items:
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- description: RIT - Retry Interval Timer.
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- description: RCT - Rate Change Timer.
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ceva,p1-cominit-params:
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$ref: /schemas/types.yaml#/definitions/uint8-array
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description: |
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OOB timing value for COMINIT parameter for port 1.
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The fields for the above parameter must be as shown below:-
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ceva,p1-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>;
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items:
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- description: CINMP - COMINIT Negate Minimum Period.
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- description: CIBGN - COMINIT Burst Gap Nominal.
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- description: CIBGMX - COMINIT Burst Gap Maximum.
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- description: CIBGMN - COMINIT Burst Gap Minimum.
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ceva,p1-comwake-params:
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$ref: /schemas/types.yaml#/definitions/uint8-array
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description: |
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OOB timing value for COMWAKE parameter for port 1.
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The fields for the above parameter must be as shown below:-
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ceva,p1-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>;
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items:
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- description: CWBGMN - COMWAKE Burst Gap Minimum.
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- description: CWBGMX - COMWAKE Burst Gap Maximum.
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- description: CWBGN - COMWAKE Burst Gap Nominal.
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- description: CWNMP - COMWAKE Negate Minimum Period.
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ceva,p1-burst-params:
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$ref: /schemas/types.yaml#/definitions/uint8-array
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description: |
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Burst timing value for COM parameter for port 1.
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The fields for the above parameter must be as shown below:-
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ceva,p1-burst-params = /bits/ 8 <BMX BNM SFD PTST>;
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items:
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- description: BMX - COM Burst Maximum.
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- description: BNM - COM Burst Nominal.
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- description: SFD - Signal Failure Detection value.
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- description: PTST - Partial to Slumber timer value.
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ceva,p1-retry-params:
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$ref: /schemas/types.yaml#/definitions/uint16-array
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description: |
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Retry interval timing value for port 1.
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The fields for the above parameter must be as shown below:-
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ceva,pN-retry-params = /bits/ 16 <RIT RCT>;
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items:
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- description: RIT - Retry Interval Timer.
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- description: RCT - Rate Change Timer.
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ceva,broken-gen2:
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$ref: /schemas/types.yaml#/definitions/flag
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description: |
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limit to gen1 speed instead of gen2.
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phys:
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maxItems: 1
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phy-names:
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items:
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- const: sata-phy
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resets:
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maxItems: 1
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required:
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- compatible
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- reg
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- clocks
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- interrupts
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- ceva,p0-cominit-params
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- ceva,p0-comwake-params
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- ceva,p0-burst-params
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- ceva,p0-retry-params
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- ceva,p1-cominit-params
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- ceva,p1-comwake-params
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- ceva,p1-burst-params
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- ceva,p1-retry-params
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/xlnx-zynqmp-clk.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/power/xlnx-zynqmp-power.h>
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#include <dt-bindings/reset/xlnx-zynqmp-resets.h>
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#include <dt-bindings/clock/xlnx-zynqmp-clk.h>
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#include <dt-bindings/phy/phy.h>
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sata: ahci@fd0c0000 {
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compatible = "ceva,ahci-1v84";
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reg = <0xfd0c0000 0x200>;
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interrupt-parent = <&gic>;
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interrupts = <0 133 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&zynqmp_clk SATA_REF>;
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ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
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ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
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ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
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ceva,p0-retry-params = /bits/ 16 <0x0216 0x7F06>;
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ceva,p1-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>;
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ceva,p1-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>;
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ceva,p1-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>;
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ceva,p1-retry-params = /bits/ 16 <0x0216 0x7F06>;
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ceva,broken-gen2;
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phys = <&psgtr 1 PHY_TYPE_SATA 1 1>;
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resets = <&zynqmp_reset ZYNQMP_RESET_SATA>;
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};
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