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Documentation/devicetree/bindings/ata/ceva,ahci-1v84.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) | ||
%YAML 1.2 | ||
--- | ||
$id: http://devicetree.org/schemas/ata/ceva,ahci-1v84.yaml# | ||
$schema: http://devicetree.org/meta-schemas/core.yaml# | ||
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title: Ceva AHCI SATA Controller | ||
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maintainers: | ||
- Piyush Mehta <[email protected]> | ||
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description: | | ||
The Ceva SATA controller mostly conforms to the AHCI interface with some | ||
special extensions to add functionality, is a high-performance dual-port | ||
SATA host controller with an AHCI compliant command layer which supports | ||
advanced features such as native command queuing and frame information | ||
structure (FIS) based switching for systems employing port multipliers. | ||
properties: | ||
compatible: | ||
const: ceva,ahci-1v84 | ||
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reg: | ||
maxItems: 1 | ||
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clocks: | ||
maxItems: 1 | ||
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dma-coherent: true | ||
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interrupts: | ||
maxItems: 1 | ||
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iommus: | ||
maxItems: 4 | ||
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power-domains: | ||
maxItems: 1 | ||
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ceva,p0-cominit-params: | ||
$ref: /schemas/types.yaml#/definitions/uint8-array | ||
description: | | ||
OOB timing value for COMINIT parameter for port 0. | ||
The fields for the above parameter must be as shown below:- | ||
ceva,p0-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>; | ||
items: | ||
- description: CINMP - COMINIT Negate Minimum Period. | ||
- description: CIBGN - COMINIT Burst Gap Nominal. | ||
- description: CIBGMX - COMINIT Burst Gap Maximum. | ||
- description: CIBGMN - COMINIT Burst Gap Minimum. | ||
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ceva,p0-comwake-params: | ||
$ref: /schemas/types.yaml#/definitions/uint8-array | ||
description: | | ||
OOB timing value for COMWAKE parameter for port 0. | ||
The fields for the above parameter must be as shown below:- | ||
ceva,p0-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>; | ||
items: | ||
- description: CWBGMN - COMWAKE Burst Gap Minimum. | ||
- description: CWBGMX - COMWAKE Burst Gap Maximum. | ||
- description: CWBGN - COMWAKE Burst Gap Nominal. | ||
- description: CWNMP - COMWAKE Negate Minimum Period. | ||
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ceva,p0-burst-params: | ||
$ref: /schemas/types.yaml#/definitions/uint8-array | ||
description: | | ||
Burst timing value for COM parameter for port 0. | ||
The fields for the above parameter must be as shown below:- | ||
ceva,p0-burst-params = /bits/ 8 <BMX BNM SFD PTST>; | ||
items: | ||
- description: BMX - COM Burst Maximum. | ||
- description: BNM - COM Burst Nominal. | ||
- description: SFD - Signal Failure Detection value. | ||
- description: PTST - Partial to Slumber timer value. | ||
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ceva,p0-retry-params: | ||
$ref: /schemas/types.yaml#/definitions/uint16-array | ||
description: | | ||
Retry interval timing value for port 0. | ||
The fields for the above parameter must be as shown below:- | ||
ceva,p0-retry-params = /bits/ 16 <RIT RCT>; | ||
items: | ||
- description: RIT - Retry Interval Timer. | ||
- description: RCT - Rate Change Timer. | ||
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ceva,p1-cominit-params: | ||
$ref: /schemas/types.yaml#/definitions/uint8-array | ||
description: | | ||
OOB timing value for COMINIT parameter for port 1. | ||
The fields for the above parameter must be as shown below:- | ||
ceva,p1-cominit-params = /bits/ 8 <CIBGMN CIBGMX CIBGN CINMP>; | ||
items: | ||
- description: CINMP - COMINIT Negate Minimum Period. | ||
- description: CIBGN - COMINIT Burst Gap Nominal. | ||
- description: CIBGMX - COMINIT Burst Gap Maximum. | ||
- description: CIBGMN - COMINIT Burst Gap Minimum. | ||
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ceva,p1-comwake-params: | ||
$ref: /schemas/types.yaml#/definitions/uint8-array | ||
description: | | ||
OOB timing value for COMWAKE parameter for port 1. | ||
The fields for the above parameter must be as shown below:- | ||
ceva,p1-comwake-params = /bits/ 8 <CWBGMN CWBGMX CWBGN CWNMP>; | ||
items: | ||
- description: CWBGMN - COMWAKE Burst Gap Minimum. | ||
- description: CWBGMX - COMWAKE Burst Gap Maximum. | ||
- description: CWBGN - COMWAKE Burst Gap Nominal. | ||
- description: CWNMP - COMWAKE Negate Minimum Period. | ||
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ceva,p1-burst-params: | ||
$ref: /schemas/types.yaml#/definitions/uint8-array | ||
description: | | ||
Burst timing value for COM parameter for port 1. | ||
The fields for the above parameter must be as shown below:- | ||
ceva,p1-burst-params = /bits/ 8 <BMX BNM SFD PTST>; | ||
items: | ||
- description: BMX - COM Burst Maximum. | ||
- description: BNM - COM Burst Nominal. | ||
- description: SFD - Signal Failure Detection value. | ||
- description: PTST - Partial to Slumber timer value. | ||
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ceva,p1-retry-params: | ||
$ref: /schemas/types.yaml#/definitions/uint16-array | ||
description: | | ||
Retry interval timing value for port 1. | ||
The fields for the above parameter must be as shown below:- | ||
ceva,pN-retry-params = /bits/ 16 <RIT RCT>; | ||
items: | ||
- description: RIT - Retry Interval Timer. | ||
- description: RCT - Rate Change Timer. | ||
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ceva,broken-gen2: | ||
$ref: /schemas/types.yaml#/definitions/flag | ||
description: | | ||
limit to gen1 speed instead of gen2. | ||
phys: | ||
maxItems: 1 | ||
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phy-names: | ||
items: | ||
- const: sata-phy | ||
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resets: | ||
maxItems: 1 | ||
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required: | ||
- compatible | ||
- reg | ||
- clocks | ||
- interrupts | ||
- ceva,p0-cominit-params | ||
- ceva,p0-comwake-params | ||
- ceva,p0-burst-params | ||
- ceva,p0-retry-params | ||
- ceva,p1-cominit-params | ||
- ceva,p1-comwake-params | ||
- ceva,p1-burst-params | ||
- ceva,p1-retry-params | ||
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additionalProperties: false | ||
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examples: | ||
- | | ||
#include <dt-bindings/clock/xlnx-zynqmp-clk.h> | ||
#include <dt-bindings/interrupt-controller/irq.h> | ||
#include <dt-bindings/power/xlnx-zynqmp-power.h> | ||
#include <dt-bindings/reset/xlnx-zynqmp-resets.h> | ||
#include <dt-bindings/clock/xlnx-zynqmp-clk.h> | ||
#include <dt-bindings/phy/phy.h> | ||
sata: ahci@fd0c0000 { | ||
compatible = "ceva,ahci-1v84"; | ||
reg = <0xfd0c0000 0x200>; | ||
interrupt-parent = <&gic>; | ||
interrupts = <0 133 IRQ_TYPE_LEVEL_HIGH>; | ||
clocks = <&zynqmp_clk SATA_REF>; | ||
ceva,p0-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>; | ||
ceva,p0-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>; | ||
ceva,p0-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>; | ||
ceva,p0-retry-params = /bits/ 16 <0x0216 0x7F06>; | ||
ceva,p1-cominit-params = /bits/ 8 <0x0F 0x25 0x18 0x29>; | ||
ceva,p1-comwake-params = /bits/ 8 <0x04 0x0B 0x08 0x0F>; | ||
ceva,p1-burst-params = /bits/ 8 <0x0A 0x08 0x4A 0x06>; | ||
ceva,p1-retry-params = /bits/ 16 <0x0216 0x7F06>; | ||
ceva,broken-gen2; | ||
phys = <&psgtr 1 PHY_TYPE_SATA 1 1>; | ||
resets = <&zynqmp_reset ZYNQMP_RESET_SATA>; | ||
}; |
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