1// SPDX-License-Identifier: GPL-2.0-only
2// Copyright (c) 2022, Ampere Computing LLC
3
4/dts-v1/;
5
6#include "aspeed-g6.dtsi"
7#include <dt-bindings/gpio/aspeed-gpio.h>
8
9/ {
10	model = "Ampere Mt.Mitchell BMC";
11	compatible = "ampere,mtmitchell-bmc", "aspeed,ast2600";
12
13	chosen {
14		stdout-path = &uart5;
15	};
16
17	memory@80000000 {
18		device_type = "memory";
19		reg = <0x80000000 0x80000000>;
20	};
21
22	reserved-memory {
23		#address-cells = <1>;
24		#size-cells = <1>;
25		ranges;
26
27		gfx_memory: framebuffer {
28			size = <0x01000000>;
29			alignment = <0x01000000>;
30			compatible = "shared-dma-pool";
31			reusable;
32		};
33
34		video_engine_memory: video {
35			size = <0x04000000>;
36			alignment = <0x01000000>;
37			compatible = "shared-dma-pool";
38			reusable;
39		};
40
41		vga_memory: region@bf000000 {
42			no-map;
43			compatible = "shared-dma-pool";
44			reg = <0xbf000000 0x01000000>;  /* 16M */
45		};
46	};
47
48	voltage_mon_reg: voltage-mon-regulator {
49		compatible = "regulator-fixed";
50		regulator-name = "ltc2497_reg";
51		regulator-min-microvolt = <3300000>;
52		regulator-max-microvolt = <3300000>;
53		regulator-always-on;
54	};
55
56	gpioI5mux: mux-controller {
57		compatible = "gpio-mux";
58		#mux-control-cells = <0>;
59		mux-gpios = <&gpio0 ASPEED_GPIO(I, 5) GPIO_ACTIVE_HIGH>;
60	};
61
62	adc0mux: adc0mux {
63		compatible = "io-channel-mux";
64		io-channels = <&adc0 0>;
65		#io-channel-cells = <1>;
66		io-channel-names = "parent";
67		mux-controls = <&gpioI5mux>;
68		channels = "s0", "s1";
69	};
70
71	adc1mux: adc1mux {
72		compatible = "io-channel-mux";
73		io-channels = <&adc0 1>;
74		#io-channel-cells = <1>;
75		io-channel-names = "parent";
76		mux-controls = <&gpioI5mux>;
77		channels = "s0", "s1";
78	};
79
80	adc2mux: adc2mux {
81		compatible = "io-channel-mux";
82		io-channels = <&adc0 2>;
83		#io-channel-cells = <1>;
84		io-channel-names = "parent";
85		mux-controls = <&gpioI5mux>;
86		channels = "s0", "s1";
87	};
88
89	adc3mux: adc3mux {
90		compatible = "io-channel-mux";
91		io-channels = <&adc0 3>;
92		#io-channel-cells = <1>;
93		io-channel-names = "parent";
94		mux-controls = <&gpioI5mux>;
95		channels = "s0", "s1";
96	};
97
98	adc4mux: adc4mux {
99		compatible = "io-channel-mux";
100		io-channels = <&adc0 4>;
101		#io-channel-cells = <1>;
102		io-channel-names = "parent";
103		mux-controls = <&gpioI5mux>;
104		channels = "s0", "s1";
105	};
106
107	adc5mux: adc5mux {
108		compatible = "io-channel-mux";
109		io-channels = <&adc0 5>;
110		#io-channel-cells = <1>;
111		io-channel-names = "parent";
112		mux-controls = <&gpioI5mux>;
113		channels = "s0", "s1";
114	};
115
116	adc6mux: adc6mux {
117		compatible = "io-channel-mux";
118		io-channels = <&adc0 6>;
119		#io-channel-cells = <1>;
120		io-channel-names = "parent";
121		mux-controls = <&gpioI5mux>;
122		channels = "s0", "s1";
123	};
124
125	adc7mux: adc7mux {
126		compatible = "io-channel-mux";
127		io-channels = <&adc0 7>;
128		#io-channel-cells = <1>;
129		io-channel-names = "parent";
130		mux-controls = <&gpioI5mux>;
131		channels = "s0", "s1";
132	};
133
134	adc8mux: adc8mux {
135		compatible = "io-channel-mux";
136		io-channels = <&adc1 0>;
137		#io-channel-cells = <1>;
138		io-channel-names = "parent";
139		mux-controls = <&gpioI5mux>;
140		channels = "s0", "s1";
141	};
142
143	adc9mux: adc9mux {
144		compatible = "io-channel-mux";
145		io-channels = <&adc1 1>;
146		#io-channel-cells = <1>;
147		io-channel-names = "parent";
148		mux-controls = <&gpioI5mux>;
149		channels = "s0", "s1";
150	};
151
152	adc10mux: adc10mux {
153		compatible = "io-channel-mux";
154		io-channels = <&adc1 2>;
155		#io-channel-cells = <1>;
156		io-channel-names = "parent";
157		mux-controls = <&gpioI5mux>;
158		channels = "s0", "s1";
159	};
160
161	adc11mux: adc11mux {
162		compatible = "io-channel-mux";
163		io-channels = <&adc1 3>;
164		#io-channel-cells = <1>;
165		io-channel-names = "parent";
166		mux-controls = <&gpioI5mux>;
167		channels = "s0", "s1";
168	};
169
170	adc12mux: adc12mux {
171		compatible = "io-channel-mux";
172		io-channels = <&adc1 4>;
173		#io-channel-cells = <1>;
174		io-channel-names = "parent";
175		mux-controls = <&gpioI5mux>;
176		channels = "s0", "s1";
177	};
178
179	adc13mux: adc13mux {
180		compatible = "io-channel-mux";
181		io-channels = <&adc1 5>;
182		#io-channel-cells = <1>;
183		io-channel-names = "parent";
184		mux-controls = <&gpioI5mux>;
185		channels = "s0", "s1";
186	};
187
188	adc14mux: adc14mux {
189		compatible = "io-channel-mux";
190		io-channels = <&adc1 6>;
191		#io-channel-cells = <1>;
192		io-channel-names = "parent";
193		mux-controls = <&gpioI5mux>;
194		channels = "s0", "s1";
195	};
196
197	adc15mux: adc15mux {
198		compatible = "io-channel-mux";
199		io-channels = <&adc1 7>;
200		#io-channel-cells = <1>;
201		io-channel-names = "parent";
202		mux-controls = <&gpioI5mux>;
203		channels = "s0", "s1";
204	};
205
206	iio-hwmon {
207		compatible = "iio-hwmon";
208		io-channels = <&adc0mux 0>, <&adc0mux 1>,
209			<&adc1mux 0>, <&adc1mux 1>,
210			<&adc2mux 0>, <&adc2mux 1>,
211			<&adc3mux 0>, <&adc3mux 1>,
212			<&adc4mux 0>, <&adc4mux 1>,
213			<&adc5mux 0>, <&adc5mux 1>,
214			<&adc6mux 0>, <&adc6mux 1>,
215			<&adc7mux 0>, <&adc7mux 1>,
216			<&adc8mux 0>, <&adc8mux 1>,
217			<&adc9mux 0>, <&adc9mux 1>,
218			<&adc10mux 0>, <&adc10mux 1>,
219			<&adc11mux 0>, <&adc11mux 1>,
220			<&adc12mux 0>, <&adc12mux 1>,
221			<&adc13mux 0>, <&adc13mux 1>,
222			<&adc14mux 0>, <&adc14mux 1>,
223			<&adc15mux 0>, <&adc15mux 1>,
224			<&adc_i2c 0>, <&adc_i2c 1>,
225			<&adc_i2c 2>, <&adc_i2c 3>,
226			<&adc_i2c 4>, <&adc_i2c 5>,
227			<&adc_i2c 6>, <&adc_i2c 7>,
228			<&adc_i2c 8>, <&adc_i2c 9>,
229			<&adc_i2c 10>, <&adc_i2c 11>,
230			<&adc_i2c 12>, <&adc_i2c 13>,
231			<&adc_i2c 14>, <&adc_i2c 15>;
232	};
233};
234
235&mdio0 {
236	status = "okay";
237
238	ethphy0: ethernet-phy@0 {
239		compatible = "ethernet-phy-ieee802.3-c22";
240		reg = <0>;
241	};
242};
243
244&mac0 {
245	status = "okay";
246
247	phy-mode = "rgmii";
248	phy-handle = <&ethphy0>;
249
250	pinctrl-names = "default";
251	pinctrl-0 = <&pinctrl_rgmii1_default>;
252};
253
254&fmc {
255	status = "okay";
256	flash@0 {
257		status = "okay";
258		m25p,fast-read;
259		label = "bmc";
260		spi-max-frequency = <50000000>;
261#include "openbmc-flash-layout-64.dtsi"
262	};
263
264	flash@1 {
265		status = "okay";
266		m25p,fast-read;
267		label = "alt-bmc";
268		spi-max-frequency = <50000000>;
269#include "openbmc-flash-layout-64-alt.dtsi"
270	};
271};
272
273&spi1 {
274	status = "okay";
275	pinctrl-names = "default";
276	pinctrl-0 = <&pinctrl_spi1_default>;
277
278	flash@0 {
279		status = "okay";
280		m25p,fast-read;
281		label = "pnor";
282		spi-max-frequency = <20000000>;
283	};
284};
285
286&uart1 {
287	status = "okay";
288};
289
290&uart2 {
291	status = "okay";
292};
293
294&uart3 {
295	status = "okay";
296};
297
298&uart4 {
299	status = "okay";
300};
301
302&i2c0 {
303	status = "okay";
304
305	temperature-sensor@2e {
306		compatible = "adi,adt7490";
307		reg = <0x2e>;
308	};
309};
310
311&i2c1 {
312	status = "okay";
313};
314
315&i2c2 {
316	status = "okay";
317
318	psu@58 {
319		compatible = "pmbus";
320		reg = <0x58>;
321	};
322
323	psu@59 {
324		compatible = "pmbus";
325		reg = <0x59>;
326	};
327};
328
329&i2c3 {
330	status = "okay";
331};
332
333&i2c4 {
334	status = "okay";
335
336	adc_i2c: adc@16 {
337		compatible = "lltc,ltc2497";
338		reg = <0x16>;
339		vref-supply = <&voltage_mon_reg>;
340		#io-channel-cells = <1>;
341	 };
342
343	eeprom@50 {
344		compatible = "atmel,24c64";
345		reg = <0x50>;
346		pagesize = <32>;
347	};
348
349	i2c-mux@70 {
350		compatible = "nxp,pca9545";
351		#address-cells = <1>;
352		#size-cells = <0>;
353		reg = <0x70>;
354		i2c-mux-idle-disconnect;
355
356		i2c4_bus70_chn0: i2c@0 {
357			#address-cells = <1>;
358			#size-cells = <0>;
359			reg = <0x0>;
360
361			outlet_temp1: temperature-sensor@48 {
362				compatible = "ti,tmp75";
363				reg = <0x48>;
364			};
365			psu1_inlet_temp2: temperature-sensor@49 {
366				compatible = "ti,tmp75";
367				reg = <0x49>;
368			};
369		};
370
371		i2c4_bus70_chn1: i2c@1 {
372			#address-cells = <1>;
373			#size-cells = <0>;
374			reg = <0x1>;
375
376			pcie_zone_temp1: temperature-sensor@48 {
377				compatible = "ti,tmp75";
378				reg = <0x48>;
379			};
380			psu0_inlet_temp2: temperature-sensor@49 {
381				compatible = "ti,tmp75";
382				reg = <0x49>;
383			};
384		};
385
386		i2c4_bus70_chn2: i2c@2 {
387			#address-cells = <1>;
388			#size-cells = <0>;
389			reg = <0x2>;
390
391			pcie_zone_temp2: temperature-sensor@48 {
392				compatible = "ti,tmp75";
393				reg = <0x48>;
394			};
395			outlet_temp2: temperature-sensor@49 {
396				compatible = "ti,tmp75";
397				reg = <0x49>;
398			};
399		};
400
401		i2c4_bus70_chn3: i2c@3 {
402			#address-cells = <1>;
403			#size-cells = <0>;
404			reg = <0x3>;
405
406			mb_inlet_temp1: temperature-sensor@7c {
407				compatible = "microchip,emc1413";
408				reg = <0x7c>;
409			};
410			mb_inlet_temp2: temperature-sensor@4c {
411				compatible = "microchip,emc1413";
412				reg = <0x4c>;
413			};
414		};
415	};
416};
417
418&i2c5 {
419	status = "okay";
420
421	i2c-mux@70 {
422		compatible = "nxp,pca9548";
423		#address-cells = <1>;
424		#size-cells = <0>;
425		reg = <0x70>;
426		i2c-mux-idle-disconnect;
427	};
428};
429
430&i2c6 {
431	status = "okay";
432	rtc@51 {
433		compatible = "nxp,pcf85063a";
434		reg = <0x51>;
435	};
436};
437
438&i2c7 {
439	status = "okay";
440};
441
442&i2c9 {
443	status = "okay";
444};
445
446&i2c11 {
447	status = "okay";
448};
449
450&i2c14 {
451	status = "okay";
452	eeprom@50 {
453		compatible = "atmel,24c64";
454		reg = <0x50>;
455		pagesize = <32>;
456	};
457
458	bmc_ast2600_cpu: temperature-sensor@35 {
459		compatible = "ti,tmp175";
460		reg = <0x35>;
461	};
462};
463
464&adc0 {
465	ref_voltage = <2500>;
466	status = "okay";
467
468	pinctrl-names = "default";
469	pinctrl-0 = <&pinctrl_adc0_default &pinctrl_adc1_default
470		&pinctrl_adc2_default &pinctrl_adc3_default
471		&pinctrl_adc4_default &pinctrl_adc5_default
472		&pinctrl_adc6_default &pinctrl_adc7_default>;
473};
474
475&adc1 {
476	ref_voltage = <2500>;
477	status = "okay";
478
479	pinctrl-names = "default";
480	pinctrl-0 = <&pinctrl_adc8_default &pinctrl_adc9_default
481		&pinctrl_adc10_default &pinctrl_adc11_default
482		&pinctrl_adc12_default &pinctrl_adc13_default
483		&pinctrl_adc14_default &pinctrl_adc15_default>;
484};
485
486&vhub {
487	status = "okay";
488};
489
490&video {
491	status = "okay";
492	memory-region = <&video_engine_memory>;
493};
494
495&gpio0 {
496	gpio-line-names =
497	/*A0-A7*/	"","","","","","i2c2-reset-n","i2c6-reset-n","i2c4-reset-n",
498	/*B0-B7*/	"","","","","host0-sysreset-n","host0-pmin-n","","",
499	/*C0-C7*/	"s0-vrd-fault-n","s1-vrd-fault-n","","",
500			"irq-n","","vrd-sel","spd-sel",
501	/*D0-D7*/	"presence-ps0","presence-ps1","hsc-12vmain-alt2-n","ext-high-temp-n",
502			"","bmc-ncsi-txen","","",
503	/*E0-E7*/	"","","clk50m-bmc-ncsi","","","","","",
504	/*F0-F7*/	"s0-pcp-oc-warn-n","s1-pcp-oc-warn-n","power-chassis-control",
505			"cpu-bios-recover","s0-heartbeat","hs-csout-prochot",
506			"s0-vr-hot-n","s1-vr-hot-n",
507	/*G0-G7*/	"","","hsc-12vmain-alt1-n","","","","","",
508	/*H0-H7*/	"","","wd-disable-n","power-chassis-good","","","","",
509	/*I0-I7*/	"","","","","","adc-sw","power-button","rtc-battery-voltage-read-enable",
510	/*J0-J7*/	"","","","","","","","",
511	/*K0-K7*/	"","","","","","","","",
512	/*L0-L7*/	"","","","","","","","",
513	/*M0-M7*/	"","s0-ddr-save","soc-spi-nor-access","presence-cpu0",
514			"s0-rtc-lock","","","",
515	/*N0-N7*/	"hpm-fw-recovery","hpm-stby-rst-n","jtag-sel-s0","led-sw-hb",
516			"jtag-dbgr-prsnt-n","s1-heartbeat","","",
517	/*O0-O7*/	"","","","","","","","",
518	/*P0-P7*/	"ps0-ac-loss-n","ps1-ac-loss-n","","",
519			"led-fault","cpld-user-mode","jtag-srst-n","led-bmc-hb",
520	/*Q0-Q7*/	"","","","","","","","",
521	/*R0-R7*/	"","","","","","","","",
522	/*S0-S7*/	"","","identify-button","led-identify",
523			"s1-ddr-save","spi-nor-access","sys-pgood","presence-cpu1",
524	/*T0-T7*/	"","","","","","","","",
525	/*U0-U7*/	"","","","","","","","",
526	/*V0-V7*/	"s0-hightemp-n","s0-fault-alert","s0-sys-auth-failure-n",
527			"host0-reboot-ack-n","host0-ready","host0-shd-req-n",
528			"host0-shd-ack-n","s0-overtemp-n",
529	/*W0-W7*/	"ocp-aux-pwren","ocp-main-pwren","ocp-pgood","",
530			"bmc-ok","bmc-ready","spi0-program-sel","spi0-backup-sel",
531	/*X0-X7*/	"i2c-backup-sel","s1-fault-alert","s1-fw-boot-ok",
532			"s1-hightemp-n","s0-spi-auth-fail-n","s1-sys-auth-failure-n",
533			"s1-overtemp-n","s1-spi-auth-fail-n",
534	/*Y0-Y7*/	"","","","","","","","host0-special-boot",
535	/*Z0-Z7*/	"reset-button","ps0-pgood","ps1-pgood","","","","","";
536};
537
538&gpio1 {
539	gpio-line-names =
540	/*18A0-18A7*/	"","","","","","","","",
541	/*18B0-18B7*/	"","","","","","","s0-soc-pgood","",
542	/*18C0-18C7*/	"uart1-mode0","uart1-mode1","uart2-mode0","uart2-mode1",
543			"uart3-mode0","uart3-mode1","uart4-mode0","uart4-mode1",
544	/*18D0-18D7*/	"","","","","","","","",
545	/*18E0-18E3*/	"","","","";
546};
547