1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/net/ti,icssg-prueth.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Texas Instruments ICSSG PRUSS Ethernet
8
9 maintainers:
10 - Md Danish Anwar <danishanwar@ti.com>
11
12 description:
13 Ethernet based on the Programmable Real-Time Unit and Industrial
14 Communication Subsystem.
15
16 properties:
17 compatible:
18 enum:
19 - ti,am642-icssg-prueth # for AM64x SoC family
20 - ti,am654-icssg-prueth # for AM65x SoC family
21 - ti,am654-sr1-icssg-prueth # for AM65x SoC family, SR1.0
22
23 sram:
24 $ref: /schemas/types.yaml#/definitions/phandle
25 description:
26 phandle to MSMC SRAM node
27
28 dmas:
29 minItems: 10
30 maxItems: 12
31
32 dma-names:
33 minItems: 10
34 items:
35 - const: tx0-0
36 - const: tx0-1
37 - const: tx0-2
38 - const: tx0-3
39 - const: tx1-0
40 - const: tx1-1
41 - const: tx1-2
42 - const: tx1-3
43 - const: rx0
44 - const: rx1
45 - const: rxmgm0
46 - const: rxmgm1
47
48 ti,mii-g-rt:
49 $ref: /schemas/types.yaml#/definitions/phandle
50 description:
51 phandle to MII_G_RT module's syscon regmap.
52
53 ti,mii-rt:
54 $ref: /schemas/types.yaml#/definitions/phandle
55 description:
56 phandle to MII_RT module's syscon regmap
57
58 ti,pa-stats:
59 $ref: /schemas/types.yaml#/definitions/phandle
60 description:
61 phandle to PA_STATS module's syscon regmap. PA_STATS is a set of
62 registers where different statistics related to ICSSG, are dumped by
63 ICSSG firmware. PA_STATS module's syscon regmap will help the device to
64 access/read/write those statistics.
65
66 ti,iep:
67 $ref: /schemas/types.yaml#/definitions/phandle-array
68 maxItems: 2
69 items:
70 maxItems: 1
71 description:
72 phandle to IEP (Industrial Ethernet Peripheral) for ICSSG
73
74 interrupts:
75 maxItems: 2
76 description:
77 Interrupt specifiers to TX timestamp IRQ.
78
79 interrupt-names:
80 items:
81 - const: tx_ts0
82 - const: tx_ts1
83
84 ethernet-ports:
85 type: object
86 additionalProperties: false
87
88 properties:
89 '#address-cells':
90 const: 1
91 '#size-cells':
92 const: 0
93
94 patternProperties:
95 ^port@[0-1]$:
96 type: object
97 description: ICSSG PRUETH external ports
98 $ref: ethernet-controller.yaml#
99 unevaluatedProperties: false
100
101 properties:
102 reg:
103 items:
104 - enum: [0, 1]
105 description: ICSSG PRUETH port number
106
107 interrupts:
108 maxItems: 1
109
110 ti,syscon-rgmii-delay:
111 items:
112 - items:
113 - description: phandle to system controller node
114 - description: The offset to ICSSG control register
115 $ref: /schemas/types.yaml#/definitions/phandle-array
116 description:
117 phandle to system controller node and register offset
118 to ICSSG control register for RGMII transmit delay
119
120 ti,half-duplex-capable:
121 type: boolean
122 description:
123 Indicates that the PHY output pin COL is routed to ICSSG GPIO pin
124 (PRGx_PRU0/1_GPIO10) as input so that the ICSSG MII port is
125 capable of half duplex operations.
126
127 required:
128 - reg
129 anyOf:
130 - required:
131 - port@0
132 - required:
133 - port@1
134
135 required:
136 - compatible
137 - sram
138 - dmas
139 - dma-names
140 - ethernet-ports
141 - ti,mii-g-rt
142 - interrupts
143 - interrupt-names
144
145 allOf:
146 - $ref: /schemas/remoteproc/ti,pru-consumer.yaml#
147
148 - if:
149 properties:
150 compatible:
151 contains:
152 const: ti,am654-sr1-icssg-prueth
153 then:
154 properties:
155 dmas:
156 minItems: 12
157 dma-names:
158 minItems: 12
159 else:
160 properties:
161 dmas:
162 maxItems: 10
163 dma-names:
164 maxItems: 10
165
166 unevaluatedProperties: false
167
168 examples:
169 - |
170 /* Example k3-am654 base board SR2.0, dual-emac */
171 pruss2_eth: ethernet {
172 compatible = "ti,am654-icssg-prueth";
173 pinctrl-names = "default";
174 pinctrl-0 = <&icssg2_rgmii_pins_default>;
175 sram = <&msmc_ram>;
176
177 ti,prus = <&pru2_0>, <&rtu2_0>, <&tx_pru2_0>,
178 <&pru2_1>, <&rtu2_1>, <&tx_pru2_1>;
179 firmware-name = "ti-pruss/am65x-pru0-prueth-fw.elf",
180 "ti-pruss/am65x-rtu0-prueth-fw.elf",
181 "ti-pruss/am65x-txpru0-prueth-fw.elf",
182 "ti-pruss/am65x-pru1-prueth-fw.elf",
183 "ti-pruss/am65x-rtu1-prueth-fw.elf",
184 "ti-pruss/am65x-txpru1-prueth-fw.elf";
185 ti,pruss-gp-mux-sel = <2>, /* MII mode */
186 <2>,
187 <2>,
188 <2>, /* MII mode */
189 <2>,
190 <2>;
191 dmas = <&main_udmap 0xc300>, /* egress slice 0 */
192 <&main_udmap 0xc301>, /* egress slice 0 */
193 <&main_udmap 0xc302>, /* egress slice 0 */
194 <&main_udmap 0xc303>, /* egress slice 0 */
195 <&main_udmap 0xc304>, /* egress slice 1 */
196 <&main_udmap 0xc305>, /* egress slice 1 */
197 <&main_udmap 0xc306>, /* egress slice 1 */
198 <&main_udmap 0xc307>, /* egress slice 1 */
199 <&main_udmap 0x4300>, /* ingress slice 0 */
200 <&main_udmap 0x4301>; /* ingress slice 1 */
201 dma-names = "tx0-0", "tx0-1", "tx0-2", "tx0-3",
202 "tx1-0", "tx1-1", "tx1-2", "tx1-3",
203 "rx0", "rx1";
204 ti,mii-g-rt = <&icssg2_mii_g_rt>;
205 ti,pa-stats = <&icssg2_pa_stats>;
206 ti,iep = <&icssg2_iep0>, <&icssg2_iep1>;
207 interrupt-parent = <&icssg2_intc>;
208 interrupts = <24 0 2>, <25 1 3>;
209 interrupt-names = "tx_ts0", "tx_ts1";
210 ethernet-ports {
211 #address-cells = <1>;
212 #size-cells = <0>;
213 pruss2_emac0: port@0 {
214 reg = <0>;
215 phy-handle = <&pruss2_eth0_phy>;
216 phy-mode = "rgmii-id";
217 interrupts-extended = <&icssg2_intc 24>;
218 ti,syscon-rgmii-delay = <&scm_conf 0x4120>;
219 /* Filled in by bootloader */
220 local-mac-address = [00 00 00 00 00 00];
221 };
222
223 pruss2_emac1: port@1 {
224 reg = <1>;
225 phy-handle = <&pruss2_eth1_phy>;
226 phy-mode = "rgmii-id";
227 interrupts-extended = <&icssg2_intc 25>;
228 ti,syscon-rgmii-delay = <&scm_conf 0x4124>;
229 /* Filled in by bootloader */
230 local-mac-address = [00 00 00 00 00 00];
231 };
232 };
233 };
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