# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/ti,icssg-prueth.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments ICSSG PRUSS Ethernet
maintainers:
- Md Danish Anwar <[email protected]>
description:
Ethernet based on the Programmable Real-Time Unit and Industrial
Communication Subsystem.
properties:
compatible:
enum:
- ti,am642-icssg-prueth # for AM64x SoC family
- ti,am654-icssg-prueth # for AM65x SoC family
- ti,am654-sr1-icssg-prueth # for AM65x SoC family, SR1.0
sram:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle to MSMC SRAM node
dmas:
minItems: 10
maxItems: 12
dma-names:
minItems: 10
items:
- const: tx0-0
- const: tx0-1
- const: tx0-2
- const: tx0-3
- const: tx1-0
- const: tx1-1
- const: tx1-2
- const: tx1-3
- const: rx0
- const: rx1
- const: rxmgm0
- const: rxmgm1
ti,mii-g-rt:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle to MII_G_RT module's syscon regmap.
ti,mii-rt:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle to MII_RT module's syscon regmap
ti,pa-stats:
$ref: /schemas/types.yaml#/definitions/phandle
description:
phandle to PA_STATS module's syscon regmap. PA_STATS is a set of
registers where different statistics related to ICSSG, are dumped by
ICSSG firmware. PA_STATS module's syscon regmap will help the device to
access/read/write those statistics.
ti,iep:
$ref: /schemas/types.yaml#/definitions/phandle-array
maxItems: 2
items:
maxItems: 1
description:
phandle to IEP (Industrial Ethernet Peripheral) for ICSSG
interrupts:
maxItems: 2
description:
Interrupt specifiers to TX timestamp IRQ.
interrupt-names:
items:
- const: tx_ts0
- const: tx_ts1
ethernet-ports:
type: object
additionalProperties: false
properties:
'#address-cells':
const: 1
'#size-cells':
const: 0
patternProperties:
^port@[0-1]$:
type: object
description: ICSSG PRUETH external ports
$ref: ethernet-controller.yaml#
unevaluatedProperties: false
properties:
reg:
items:
- enum: [0, 1]
description: ICSSG PRUETH port number
interrupts:
maxItems: 1
ti,syscon-rgmii-delay:
items:
- items:
- description: phandle to system controller node
- description: The offset to ICSSG control register
$ref: /schemas/types.yaml#/definitions/phandle-array
description:
phandle to system controller node and register offset
to ICSSG control register for RGMII transmit delay
ti,half-duplex-capable:
type: boolean
description:
Indicates that the PHY output pin COL is routed to ICSSG GPIO pin
(PRGx_PRU0/1_GPIO10) as input so that the ICSSG MII port is
capable of half duplex operations.
required:
- reg
anyOf:
- required:
- port@0
- required:
- port@1
required:
- compatible
- sram
- dmas
- dma-names
- ethernet-ports
- ti,mii-g-rt
- interrupts
- interrupt-names
allOf:
- $ref: /schemas/remoteproc/ti,pru-consumer.yaml#
- if:
properties:
compatible:
contains:
const: ti,am654-sr1-icssg-prueth
then:
properties:
dmas:
minItems: 12
dma-names:
minItems: 12
else:
properties:
dmas:
maxItems: 10
dma-names:
maxItems: 10
unevaluatedProperties: false
examples:
- |
/* Example k3-am654 base board SR2.0, dual-emac */
pruss2_eth: ethernet {
compatible = "ti,am654-icssg-prueth";
pinctrl-names = "default";
pinctrl-0 = <&icssg2_rgmii_pins_default>;
sram = <&msmc_ram>;
ti,prus = <&pru2_0>, <&rtu2_0>, <&tx_pru2_0>,
<&pru2_1>, <&rtu2_1>, <&tx_pru2_1>;
firmware-name = "ti-pruss/am65x-pru0-prueth-fw.elf",
"ti-pruss/am65x-rtu0-prueth-fw.elf",
"ti-pruss/am65x-txpru0-prueth-fw.elf",
"ti-pruss/am65x-pru1-prueth-fw.elf",
"ti-pruss/am65x-rtu1-prueth-fw.elf",
"ti-pruss/am65x-txpru1-prueth-fw.elf";
ti,pruss-gp-mux-sel = <2>, /* MII mode */
<2>,
<2>,
<2>, /* MII mode */
<2>,
<2>;
dmas = <&main_udmap 0xc300>, /* egress slice 0 */
<&main_udmap 0xc301>, /* egress slice 0 */
<&main_udmap 0xc302>, /* egress slice 0 */
<&main_udmap 0xc303>, /* egress slice 0 */
<&main_udmap 0xc304>, /* egress slice 1 */
<&main_udmap 0xc305>, /* egress slice 1 */
<&main_udmap 0xc306>, /* egress slice 1 */
<&main_udmap 0xc307>, /* egress slice 1 */
<&main_udmap 0x4300>, /* ingress slice 0 */
<&main_udmap 0x4301>; /* ingress slice 1 */
dma-names = "tx0-0", "tx0-1", "tx0-2", "tx0-3",
"tx1-0", "tx1-1", "tx1-2", "tx1-3",
"rx0", "rx1";
ti,mii-g-rt = <&icssg2_mii_g_rt>;
ti,pa-stats = <&icssg2_pa_stats>;
ti,iep = <&icssg2_iep0>, <&icssg2_iep1>;
interrupt-parent = <&icssg2_intc>;
interrupts = <24 0 2>, <25 1 3>;
interrupt-names = "tx_ts0", "tx_ts1";
ethernet-ports {
#address-cells = <1>;
#size-cells = <0>;
pruss2_emac0: port@0 {
reg = <0>;
phy-handle = <&pruss2_eth0_phy>;
phy-mode = "rgmii-id";
interrupts-extended = <&icssg2_intc 24>;
ti,syscon-rgmii-delay = <&scm_conf 0x4120>;
/* Filled in by bootloader */
local-mac-address = [00 00 00 00 00 00];
};
pruss2_emac1: port@1 {
reg = <1>;
phy-handle = <&pruss2_eth1_phy>;
phy-mode = "rgmii-id";
interrupts-extended = <&icssg2_intc 25>;
ti,syscon-rgmii-delay = <&scm_conf 0x4124>;
/* Filled in by bootloader */
local-mac-address = [00 00 00 00 00 00];
};
};
};
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