Merge tag 'u-boot-atmel-fixes-2020.07-a' of https://gitlab.denx.de/u-boot/custodians...
[oweals/u-boot.git] / arch / arm / dts / rk3399-rock-pi-4.dts
1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2 /*
3  * Copyright (c) 2019 Akash Gajjar <Akash_Gajjar@mentor.com>
4  * Copyright (c) 2019 Pragnesh Patel <Pragnesh_Patel@mentor.com>
5  */
6
7 /dts-v1/;
8 #include <dt-bindings/input/linux-event-codes.h>
9 #include <dt-bindings/pwm/pwm.h>
10 #include "rk3399.dtsi"
11 #include "rk3399-opp.dtsi"
12
13 / {
14         model = "Radxa ROCK Pi 4";
15         compatible = "radxa,rockpi4", "rockchip,rk3399";
16
17         chosen {
18                 stdout-path = "serial2:1500000n8";
19         };
20
21         clkin_gmac: external-gmac-clock {
22                 compatible = "fixed-clock";
23                 clock-frequency = <125000000>;
24                 clock-output-names = "clkin_gmac";
25                 #clock-cells = <0>;
26         };
27
28         sdio_pwrseq: sdio-pwrseq {
29                 compatible = "mmc-pwrseq-simple";
30                 clocks = <&rk808 1>;
31                 clock-names = "ext_clock";
32                 pinctrl-names = "default";
33                 pinctrl-0 = <&wifi_enable_h>;
34                 reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
35         };
36
37         vcc12v_dcin: dc-12v {
38                 compatible = "regulator-fixed";
39                 regulator-name = "vcc12v_dcin";
40                 regulator-always-on;
41                 regulator-boot-on;
42                 regulator-min-microvolt = <12000000>;
43                 regulator-max-microvolt = <12000000>;
44         };
45
46         vcc5v0_sys: vcc-sys {
47                 compatible = "regulator-fixed";
48                 regulator-name = "vcc5v0_sys";
49                 regulator-always-on;
50                 regulator-boot-on;
51                 regulator-min-microvolt = <5000000>;
52                 regulator-max-microvolt = <5000000>;
53                 vin-supply = <&vcc12v_dcin>;
54         };
55
56         vcc_0v9: vcc-0v9 {
57                 compatible = "regulator-fixed";
58                 regulator-name = "vcc_0v9";
59                 regulator-always-on;
60                 regulator-boot-on;
61                 regulator-min-microvolt = <900000>;
62                 regulator-max-microvolt = <900000>;
63                 vin-supply = <&vcc3v3_sys>;
64         };
65
66         vcc3v3_pcie: vcc3v3-pcie-regulator {
67                 compatible = "regulator-fixed";
68                 enable-active-high;
69                 gpio = <&gpio2 RK_PD2 GPIO_ACTIVE_HIGH>;
70                 pinctrl-names = "default";
71                 pinctrl-0 = <&pcie_pwr_en>;
72                 regulator-name = "vcc3v3_pcie";
73                 regulator-always-on;
74                 regulator-boot-on;
75                 vin-supply = <&vcc5v0_sys>;
76         };
77
78         vcc3v3_sys: vcc3v3-sys {
79                 compatible = "regulator-fixed";
80                 regulator-name = "vcc3v3_sys";
81                 regulator-always-on;
82                 regulator-boot-on;
83                 regulator-min-microvolt = <3300000>;
84                 regulator-max-microvolt = <3300000>;
85                 vin-supply = <&vcc5v0_sys>;
86         };
87
88         vcc5v0_host: vcc5v0-host-regulator {
89                 compatible = "regulator-fixed";
90                 enable-active-high;
91                 gpio = <&gpio4 RK_PD1 GPIO_ACTIVE_HIGH>;
92                 pinctrl-names = "default";
93                 pinctrl-0 = <&vcc5v0_host_en>;
94                 regulator-name = "vcc5v0_host";
95                 regulator-always-on;
96                 vin-supply = <&vcc5v0_sys>;
97         };
98
99         vcc5v0_typec: vcc5v0-typec-regulator {
100                 compatible = "regulator-fixed";
101                 enable-active-high;
102                 gpio = <&gpio1 RK_PA3 GPIO_ACTIVE_HIGH>;
103                 pinctrl-names = "default";
104                 pinctrl-0 = <&vcc5v0_typec_en>;
105                 regulator-name = "vcc5v0_typec";
106                 regulator-always-on;
107                 vin-supply = <&vcc5v0_sys>;
108         };
109
110         vcc_lan: vcc3v3-phy-regulator {
111                 compatible = "regulator-fixed";
112                 regulator-name = "vcc_lan";
113                 regulator-always-on;
114                 regulator-boot-on;
115                 regulator-min-microvolt = <3300000>;
116                 regulator-max-microvolt = <3300000>;
117
118                 regulator-state-mem {
119                         regulator-off-in-suspend;
120                 };
121         };
122
123         vdd_log: vdd-log {
124                 compatible = "pwm-regulator";
125                 pwms = <&pwm2 0 25000 1>;
126                 regulator-name = "vdd_log";
127                 regulator-always-on;
128                 regulator-boot-on;
129                 regulator-min-microvolt = <800000>;
130                 regulator-max-microvolt = <1400000>;
131                 vin-supply = <&vcc5v0_sys>;
132         };
133 };
134
135 &cpu_l0 {
136         cpu-supply = <&vdd_cpu_l>;
137 };
138
139 &cpu_l1 {
140         cpu-supply = <&vdd_cpu_l>;
141 };
142
143 &cpu_l2 {
144         cpu-supply = <&vdd_cpu_l>;
145 };
146
147 &cpu_l3 {
148         cpu-supply = <&vdd_cpu_l>;
149 };
150
151 &cpu_b0 {
152         cpu-supply = <&vdd_cpu_b>;
153 };
154
155 &cpu_b1 {
156         cpu-supply = <&vdd_cpu_b>;
157 };
158
159 &emmc_phy {
160         status = "okay";
161 };
162
163 &gmac {
164         assigned-clocks = <&cru SCLK_RMII_SRC>;
165         assigned-clock-parents = <&clkin_gmac>;
166         clock_in_out = "input";
167         phy-supply = <&vcc_lan>;
168         phy-mode = "rgmii";
169         pinctrl-names = "default";
170         pinctrl-0 = <&rgmii_pins>;
171         snps,reset-gpio = <&gpio3 RK_PB7 GPIO_ACTIVE_LOW>;
172         snps,reset-active-low;
173         snps,reset-delays-us = <0 10000 50000>;
174         tx_delay = <0x28>;
175         rx_delay = <0x11>;
176         status = "okay";
177 };
178
179 &gpu {
180         mali-supply = <&vdd_gpu>;
181         status = "okay";
182 };
183
184 &hdmi {
185         ddc-i2c-bus = <&i2c3>;
186         pinctrl-names = "default";
187         pinctrl-0 = <&hdmi_cec>;
188         status = "okay";
189 };
190
191 &hdmi_sound {
192         status = "okay";
193 };
194
195 &i2c0 {
196         clock-frequency = <400000>;
197         i2c-scl-rising-time-ns = <168>;
198         i2c-scl-falling-time-ns = <4>;
199         status = "okay";
200
201         rk808: pmic@1b {
202                 compatible = "rockchip,rk808";
203                 reg = <0x1b>;
204                 interrupt-parent = <&gpio1>;
205                 interrupts = <21 IRQ_TYPE_LEVEL_LOW>;
206                 #clock-cells = <1>;
207                 clock-output-names = "xin32k", "rk808-clkout2";
208                 pinctrl-names = "default";
209                 pinctrl-0 = <&pmic_int_l>;
210                 rockchip,system-power-controller;
211                 wakeup-source;
212
213                 vcc1-supply = <&vcc5v0_sys>;
214                 vcc2-supply = <&vcc5v0_sys>;
215                 vcc3-supply = <&vcc5v0_sys>;
216                 vcc4-supply = <&vcc5v0_sys>;
217                 vcc6-supply = <&vcc5v0_sys>;
218                 vcc7-supply = <&vcc5v0_sys>;
219                 vcc8-supply = <&vcc3v3_sys>;
220                 vcc9-supply = <&vcc5v0_sys>;
221                 vcc10-supply = <&vcc5v0_sys>;
222                 vcc11-supply = <&vcc5v0_sys>;
223                 vcc12-supply = <&vcc3v3_sys>;
224                 vddio-supply = <&vcc_1v8>;
225
226                 regulators {
227                         vdd_center: DCDC_REG1 {
228                                 regulator-name = "vdd_center";
229                                 regulator-always-on;
230                                 regulator-boot-on;
231                                 regulator-min-microvolt = <750000>;
232                                 regulator-max-microvolt = <1350000>;
233                                 regulator-ramp-delay = <6001>;
234                                 regulator-state-mem {
235                                         regulator-off-in-suspend;
236                                 };
237                         };
238
239                         vdd_cpu_l: DCDC_REG2 {
240                                 regulator-name = "vdd_cpu_l";
241                                 regulator-always-on;
242                                 regulator-boot-on;
243                                 regulator-min-microvolt = <750000>;
244                                 regulator-max-microvolt = <1350000>;
245                                 regulator-ramp-delay = <6001>;
246                                 regulator-state-mem {
247                                         regulator-off-in-suspend;
248                                 };
249                         };
250
251                         vcc_ddr: DCDC_REG3 {
252                                 regulator-name = "vcc_ddr";
253                                 regulator-always-on;
254                                 regulator-boot-on;
255                                 regulator-state-mem {
256                                         regulator-on-in-suspend;
257                                 };
258                         };
259
260                         vcc_1v8: DCDC_REG4 {
261                                 regulator-name = "vcc_1v8";
262                                 regulator-always-on;
263                                 regulator-boot-on;
264                                 regulator-min-microvolt = <1800000>;
265                                 regulator-max-microvolt = <1800000>;
266                                 regulator-state-mem {
267                                         regulator-on-in-suspend;
268                                         regulator-suspend-microvolt = <1800000>;
269                                 };
270                         };
271
272                         vcc1v8_codec: LDO_REG1 {
273                                 regulator-name = "vcc1v8_codec";
274                                 regulator-always-on;
275                                 regulator-boot-on;
276                                 regulator-min-microvolt = <1800000>;
277                                 regulator-max-microvolt = <1800000>;
278                                 regulator-state-mem {
279                                         regulator-off-in-suspend;
280                                 };
281                         };
282
283                         vcc1v8_hdmi: LDO_REG2 {
284                                 regulator-name = "vcc1v8_hdmi";
285                                 regulator-always-on;
286                                 regulator-boot-on;
287                                 regulator-min-microvolt = <1800000>;
288                                 regulator-max-microvolt = <1800000>;
289                                 regulator-state-mem {
290                                         regulator-off-in-suspend;
291                                 };
292                         };
293
294                         vcca_1v8: LDO_REG3 {
295                                 regulator-name = "vcca_1v8";
296                                 regulator-always-on;
297                                 regulator-boot-on;
298                                 regulator-min-microvolt = <1800000>;
299                                 regulator-max-microvolt = <1800000>;
300                                 regulator-state-mem {
301                                         regulator-on-in-suspend;
302                                         regulator-suspend-microvolt = <1800000>;
303                                 };
304                         };
305
306                         vcc_sdio: LDO_REG4 {
307                                 regulator-name = "vcc_sdio";
308                                 regulator-always-on;
309                                 regulator-boot-on;
310                                 regulator-min-microvolt = <3000000>;
311                                 regulator-max-microvolt = <3000000>;
312                                 regulator-state-mem {
313                                         regulator-on-in-suspend;
314                                         regulator-suspend-microvolt = <3000000>;
315                                 };
316                         };
317
318                         vcca3v0_codec: LDO_REG5 {
319                                 regulator-name = "vcca3v0_codec";
320                                 regulator-always-on;
321                                 regulator-boot-on;
322                                 regulator-min-microvolt = <3000000>;
323                                 regulator-max-microvolt = <3000000>;
324                                 regulator-state-mem {
325                                         regulator-off-in-suspend;
326                                 };
327                         };
328
329                         vcc_1v5: LDO_REG6 {
330                                 regulator-name = "vcc_1v5";
331                                 regulator-always-on;
332                                 regulator-boot-on;
333                                 regulator-min-microvolt = <1500000>;
334                                 regulator-max-microvolt = <1500000>;
335                                 regulator-state-mem {
336                                         regulator-on-in-suspend;
337                                         regulator-suspend-microvolt = <1500000>;
338                                 };
339                         };
340
341                         vcc0v9_hdmi: LDO_REG7 {
342                                 regulator-name = "vcc0v9_hdmi";
343                                 regulator-always-on;
344                                 regulator-boot-on;
345                                 regulator-min-microvolt = <900000>;
346                                 regulator-max-microvolt = <900000>;
347                                 regulator-state-mem {
348                                         regulator-off-in-suspend;
349                                 };
350                         };
351
352                         vcc_3v0: LDO_REG8 {
353                                 regulator-name = "vcc_3v0";
354                                 regulator-always-on;
355                                 regulator-boot-on;
356                                 regulator-min-microvolt = <3000000>;
357                                 regulator-max-microvolt = <3000000>;
358                                 regulator-state-mem {
359                                         regulator-on-in-suspend;
360                                         regulator-suspend-microvolt = <3000000>;
361                                 };
362                         };
363
364                         vcc_cam: SWITCH_REG1 {
365                                 regulator-name = "vcc_cam";
366                                 regulator-always-on;
367                                 regulator-boot-on;
368                                 regulator-min-microvolt = <3300000>;
369                                 regulator-max-microvolt = <3300000>;
370                                 regulator-state-mem {
371                                         regulator-off-in-suspend;
372                                 };
373                         };
374
375                         vcc_mipi: SWITCH_REG2 {
376                                 regulator-name = "vcc_mipi";
377                                 regulator-always-on;
378                                 regulator-boot-on;
379                                 regulator-min-microvolt = <3300000>;
380                                 regulator-max-microvolt = <3300000>;
381                                 regulator-state-mem {
382                                         regulator-off-in-suspend;
383                                 };
384                         };
385                 };
386         };
387
388         vdd_cpu_b: regulator@40 {
389                 compatible = "silergy,syr827";
390                 reg = <0x40>;
391                 fcs,suspend-voltage-selector = <1>;
392                 pinctrl-names = "default";
393                 pinctrl-0 = <&vsel1_gpio>;
394                 regulator-name = "vdd_cpu_b";
395                 regulator-min-microvolt = <712500>;
396                 regulator-max-microvolt = <1500000>;
397                 regulator-ramp-delay = <1000>;
398                 regulator-always-on;
399                 regulator-boot-on;
400                 vin-supply = <&vcc5v0_sys>;
401
402                 regulator-state-mem {
403                         regulator-off-in-suspend;
404                 };
405         };
406
407         vdd_gpu: regulator@41 {
408                 compatible = "silergy,syr828";
409                 reg = <0x41>;
410                 fcs,suspend-voltage-selector = <1>;
411                 pinctrl-names = "default";
412                 pinctrl-0 = <&vsel2_gpio>;
413                 regulator-name = "vdd_gpu";
414                 regulator-min-microvolt = <712500>;
415                 regulator-max-microvolt = <1500000>;
416                 regulator-ramp-delay = <1000>;
417                 regulator-always-on;
418                 regulator-boot-on;
419                 vin-supply = <&vcc5v0_sys>;
420
421                 regulator-state-mem {
422                         regulator-off-in-suspend;
423                 };
424         };
425 };
426
427 &i2c1 {
428         i2c-scl-rising-time-ns = <300>;
429         i2c-scl-falling-time-ns = <15>;
430         status = "okay";
431 };
432
433 &i2c3 {
434         i2c-scl-rising-time-ns = <450>;
435         i2c-scl-falling-time-ns = <15>;
436         status = "okay";
437 };
438
439 &i2c4 {
440         i2c-scl-rising-time-ns = <600>;
441         i2c-scl-falling-time-ns = <20>;
442         status = "okay";
443 };
444
445 &i2s0 {
446         rockchip,playback-channels = <8>;
447         rockchip,capture-channels = <8>;
448         status = "okay";
449 };
450
451 &i2s1 {
452         rockchip,playback-channels = <2>;
453         rockchip,capture-channels = <2>;
454         status = "okay";
455 };
456
457 &i2s2 {
458         status = "okay";
459 };
460
461 &io_domains {
462         status = "okay";
463
464         bt656-supply = <&vcc_3v0>;
465         audio-supply = <&vcc_3v0>;
466         sdmmc-supply = <&vcc_sdio>;
467         gpio1830-supply = <&vcc_3v0>;
468 };
469
470 &pmu_io_domains {
471         status = "okay";
472
473         pmu1830-supply = <&vcc_3v0>;
474 };
475
476 &pcie_phy {
477         status = "okay";
478 };
479
480 &pcie0 {
481         ep-gpios = <&gpio4 RK_PD3 GPIO_ACTIVE_HIGH>;
482         max-link-speed = <2>;
483         num-lanes = <4>;
484         pinctrl-0 = <&pcie_clkreqnb_cpm>;
485         pinctrl-names = "default";
486         vpcie0v9-supply = <&vcc_0v9>;
487         vpcie1v8-supply = <&vcc_1v8>;
488         vpcie3v3-supply = <&vcc3v3_pcie>;
489         status = "okay";
490 };
491
492 &pinctrl {
493         bt {
494                 bt_enable_h: bt-enable-h {
495                         rockchip,pins = <0 RK_PB1 RK_FUNC_GPIO &pcfg_pull_none>;
496                 };
497
498                 bt_host_wake_l: bt-host-wake-l {
499                         rockchip,pins = <0 RK_PA4 RK_FUNC_GPIO &pcfg_pull_none>;
500                 };
501
502                 bt_wake_l: bt-wake-l {
503                         rockchip,pins = <2 RK_PD3 RK_FUNC_GPIO &pcfg_pull_none>;
504                 };
505         };
506
507         pcie {
508                 pcie_pwr_en: pcie-pwr-en {
509                         rockchip,pins = <2 RK_PD2 RK_FUNC_GPIO &pcfg_pull_none>;
510                 };
511         };
512
513         sdio0 {
514                 sdio0_bus4: sdio0-bus4 {
515                         rockchip,pins = <2 RK_PC4 1 &pcfg_pull_up_20ma>,
516                                         <2 RK_PC5 1 &pcfg_pull_up_20ma>,
517                                         <2 RK_PC6 1 &pcfg_pull_up_20ma>,
518                                         <2 RK_PC7 1 &pcfg_pull_up_20ma>;
519                 };
520
521                 sdio0_cmd: sdio0-cmd {
522                         rockchip,pins = <2 RK_PD0 1 &pcfg_pull_up_20ma>;
523                 };
524
525                 sdio0_clk: sdio0-clk {
526                         rockchip,pins = <2 RK_PD1 1 &pcfg_pull_none_20ma>;
527                 };
528         };
529
530         pmic {
531                 pmic_int_l: pmic-int-l {
532                         rockchip,pins = <1 RK_PC5 RK_FUNC_GPIO &pcfg_pull_up>;
533                 };
534
535                 vsel1_gpio: vsel1-gpio {
536                         rockchip,pins = <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_down>;
537                 };
538
539                 vsel2_gpio: vsel2-gpio {
540                         rockchip,pins = <1 RK_PB6 RK_FUNC_GPIO &pcfg_pull_down>;
541                 };
542         };
543
544         usb-typec {
545                 vcc5v0_typec_en: vcc5v0-typec-en {
546                         rockchip,pins = <1 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;
547                 };
548         };
549
550         usb2 {
551                 vcc5v0_host_en: vcc5v0-host-en {
552                         rockchip,pins = <4 RK_PD1 RK_FUNC_GPIO &pcfg_pull_none>;
553                 };
554         };
555
556         wifi {
557                 wifi_enable_h: wifi-enable-h {
558                         rockchip,pins = <0 RK_PB2 RK_FUNC_GPIO &pcfg_pull_none>;
559                 };
560
561                 wifi_host_wake_l: wifi-host-wake-l {
562                         rockchip,pins = <0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_none>;
563                 };
564         };
565 };
566
567 &pwm2 {
568         status = "okay";
569 };
570
571 &saradc {
572         status = "okay";
573
574         vref-supply = <&vcc_1v8>;
575 };
576
577 &sdio0 {
578         #address-cells = <1>;
579         #size-cells = <0>;
580         bus-width = <4>;
581         clock-frequency = <50000000>;
582         cap-sdio-irq;
583         cap-sd-highspeed;
584         keep-power-in-suspend;
585         mmc-pwrseq = <&sdio_pwrseq>;
586         non-removable;
587         pinctrl-names = "default";
588         pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
589         sd-uhs-sdr104;
590         status = "okay";
591
592         brcmf: wifi@1 {
593                 compatible = "brcm,bcm4329-fmac";
594                 reg = <1>;
595                 interrupt-parent = <&gpio0>;
596                 interrupts = <RK_PA3 GPIO_ACTIVE_HIGH>;
597                 interrupt-names = "host-wake";
598                 pinctrl-names = "default";
599                 pinctrl-0 = <&wifi_host_wake_l>;
600         };
601 };
602
603 &sdmmc {
604         bus-width = <4>;
605         cap-mmc-highspeed;
606         cap-sd-highspeed;
607         cd-gpios = <&gpio0 RK_PA7 GPIO_ACTIVE_LOW>;
608         disable-wp;
609         max-frequency = <150000000>;
610         pinctrl-names = "default";
611         pinctrl-0 = <&sdmmc_clk &sdmmc_cd &sdmmc_cmd &sdmmc_bus4>;
612         status = "okay";
613 };
614
615 &sdhci {
616         bus-width = <8>;
617         mmc-hs400-1_8v;
618         mmc-hs400-enhanced-strobe;
619         non-removable;
620         status = "okay";
621 };
622
623 &tcphy0 {
624         status = "okay";
625 };
626
627 &tcphy1 {
628         status = "okay";
629 };
630
631 &tsadc {
632         status = "okay";
633
634         /* tshut mode 0:CRU 1:GPIO */
635         rockchip,hw-tshut-mode = <1>;
636         /* tshut polarity 0:LOW 1:HIGH */
637         rockchip,hw-tshut-polarity = <1>;
638 };
639
640 &u2phy0 {
641         status = "okay";
642
643         u2phy0_otg: otg-port {
644                 status = "okay";
645         };
646
647         u2phy0_host: host-port {
648                 phy-supply = <&vcc5v0_host>;
649                 status = "okay";
650         };
651 };
652
653 &u2phy1 {
654         status = "okay";
655
656         u2phy1_otg: otg-port {
657                 status = "okay";
658         };
659
660         u2phy1_host: host-port {
661                 phy-supply = <&vcc5v0_host>;
662                 status = "okay";
663         };
664 };
665
666 &uart0 {
667         pinctrl-names = "default";
668         pinctrl-0 = <&uart0_xfer &uart0_cts &uart0_rts>;
669         status = "okay";
670
671         bluetooth {
672                 compatible = "brcm,bcm43438-bt";
673                 clocks = <&rk808 1>;
674                 clock-names = "ext_clock";
675                 device-wakeup-gpios = <&gpio2 RK_PD3 GPIO_ACTIVE_HIGH>;
676                 host-wakeup-gpios = <&gpio0 RK_PA4 GPIO_ACTIVE_HIGH>;
677                 shutdown-gpios = <&gpio0 RK_PB1 GPIO_ACTIVE_HIGH>;
678                 pinctrl-names = "default";
679                 pinctrl-0 = <&bt_host_wake_l &bt_wake_l &bt_enable_h>;
680         };
681 };
682
683 &uart2 {
684         status = "okay";
685 };
686
687 &usb_host0_ehci {
688         status = "okay";
689 };
690
691 &usb_host0_ohci {
692         status = "okay";
693 };
694
695 &usb_host1_ehci {
696         status = "okay";
697 };
698
699 &usb_host1_ohci {
700         status = "okay";
701 };
702
703 &usbdrd3_0 {
704         status = "okay";
705 };
706
707 &usbdrd_dwc3_0 {
708         status = "okay";
709         dr_mode = "otg";
710 };
711
712 &usbdrd3_1 {
713         status = "okay";
714 };
715
716 &usbdrd_dwc3_1 {
717         status = "okay";
718         dr_mode = "host";
719 };
720
721 &vopb {
722         status = "okay";
723 };
724
725 &vopb_mmu {
726         status = "okay";
727 };
728
729 &vopl {
730         status = "okay";
731 };
732
733 &vopl_mmu {
734         status = "okay";
735 };