# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
# Copyright (C) 2020 Texas Instruments Incorporated - http://www.ti.com/
%YAML 1.2
---
$id: http://devicetree.org/schemas/mmc/sdhci-am654.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI AM654 MMC Controller
maintainers:
- Ulf Hansson <ulf.hansson@linaro.org>
allOf:
- $ref: sdhci-common.yaml#
properties:
compatible:
oneOf:
- enum:
- ti,am62-sdhci
- ti,am64-sdhci-4bit
- ti,am64-sdhci-8bit
- ti,am654-sdhci-5.1
- ti,j721e-sdhci-4bit
- ti,j721e-sdhci-8bit
- items:
- const: ti,j7200-sdhci-8bit
- const: ti,j721e-sdhci-8bit
- items:
- const: ti,j7200-sdhci-4bit
- const: ti,j721e-sdhci-4bit
reg:
maxItems: 2
interrupts:
maxItems: 1
power-domains:
maxItems: 1
clocks:
minItems: 1
maxItems: 2
description: Handles to input clocks
clock-names:
minItems: 1
items:
- const: clk_ahb
- const: clk_xin
dma-coherent:
type: boolean
# PHY output tap delays:
# Used to delay the data valid window and align it to the sampling clock.
# Binding needs to be provided for each supported speed mode otherwise the
# corresponding mode will be disabled.
ti,otap-del-sel-legacy:
description: Output tap delay for SD/MMC legacy timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-mmc-hs:
description: Output tap delay for MMC high speed timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-sd-hs:
description: Output tap delay for SD high speed timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-sdr12:
description: Output tap delay for SD UHS SDR12 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-sdr25:
description: Output tap delay for SD UHS SDR25 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-sdr50:
description: Output tap delay for SD UHS SDR50 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-sdr104:
description: Output tap delay for SD UHS SDR104 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-ddr50:
description: Output tap delay for SD UHS DDR50 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-ddr52:
description: Output tap delay for eMMC DDR52 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-hs200:
description: Output tap delay for eMMC HS200 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,otap-del-sel-hs400:
description: Output tap delay for eMMC HS400 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
# PHY input tap delays:
# Used to delay the data valid window and align it to the sampling clock for
# modes that don't support tuning
ti,itap-del-sel-legacy:
description: Input tap delay for SD/MMC legacy timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0x1f
ti,itap-del-sel-mmc-hs:
description: Input tap delay for MMC high speed timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0x1f
ti,itap-del-sel-sd-hs:
description: Input tap delay for SD high speed timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0x1f
ti,itap-del-sel-sdr12:
description: Input tap delay for SD UHS SDR12 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0x1f
ti,itap-del-sel-sdr25:
description: Input tap delay for SD UHS SDR25 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0x1f
ti,itap-del-sel-ddr50:
description: Input tap delay for MMC DDR50 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0x1f
ti,itap-del-sel-ddr52:
description: Input tap delay for MMC DDR52 timing
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0x1f
ti,trm-icp:
description: DLL trim select
$ref: /schemas/types.yaml#/definitions/uint32
minimum: 0
maximum: 0xf
ti,driver-strength-ohm:
description: DLL drive strength in ohms
$ref: /schemas/types.yaml#/definitions/uint32
enum:
- 33
- 40
- 50
- 66
- 100
ti,strobe-sel:
description: strobe select delay for HS400 speed mode.
$ref: /schemas/types.yaml#/definitions/uint32
ti,clkbuf-sel:
description: Clock Delay Buffer Select
$ref: /schemas/types.yaml#/definitions/uint32
ti,fails-without-test-cd:
$ref: /schemas/types.yaml#/definitions/flag
description:
When present, indicates that the CD line is not connected
and the controller is required to be forced into Test mode
to set the TESTCD bit.
required:
- compatible
- reg
- interrupts
- clocks
- clock-names
- ti,otap-del-sel-legacy
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
bus {
#address-cells = <2>;
#size-cells = <2>;
mmc0: mmc@4f80000 {
compatible = "ti,am654-sdhci-5.1";
reg = <0x0 0x4f80000 0x0 0x260>, <0x0 0x4f90000 0x0 0x134>;
power-domains = <&k3_pds 47>;
clocks = <&k3_clks 47 0>, <&k3_clks 47 1>;
clock-names = "clk_ahb", "clk_xin";
interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>;
sdhci-caps-mask = <0x80000007 0x0>;
mmc-ddr-1_8v;
ti,otap-del-sel-legacy = <0x0>;
ti,otap-del-sel-mmc-hs = <0x0>;
ti,otap-del-sel-ddr52 = <0x5>;
ti,otap-del-sel-hs200 = <0x5>;
ti,otap-del-sel-hs400 = <0x0>;
ti,itap-del-sel-legacy = <0x10>;
ti,itap-del-sel-mmc-hs = <0xa>;
ti,itap-del-sel-ddr52 = <0x3>;
ti,trm-icp = <0x8>;
};
};