From: Mark Kettenis Subject: Re: support MediaTek interrupt controller To: James Hastings , patrick@openbsd.org Cc: moosetek4@gmail.com,tech@openbsd.org Date: Sat, 25 Jan 2025 22:29:45 +0100 > From: James Hastings > Date: Sat, 25 Jan 2025 15:21:54 -0500 (EST) > > Add support for MediaTek system interrupt controller. > > This controller is the default interrupt-parent on older design SoCs. > It is located upstream from GIC and sole function is interrupt > polarity control. > > ramdisk console log below. > > ok? We tend to give interrupt controllers names that end in "intc", so mtintc(4) would perhaps be better. Patrick, how do you feel about that. I'm always a bit hesitant to add suspend/resume support to drivers before that can be really tested. But in this case the implementation is probably right. Otherwise this looks good. > Index: sys/dev/fdt/mtsysirq.c > =================================================================== > RCS file: sys/dev/fdt/mtsysirq.c > diff -N sys/dev/fdt/mtsysirq.c > --- /dev/null 1 Jan 1970 00:00:00 -0000 > +++ sys/dev/fdt/mtsysirq.c 23 Jan 2025 23:17:04 -0000 > @@ -0,0 +1,145 @@ > +/* $OpenBSD$ */ > +/* > + * Copyright (c) 2025 James Hastings > + * > + * Permission to use, copy, modify, and distribute this software for any > + * purpose with or without fee is hereby granted, provided that the above > + * copyright notice and this permission notice appear in all copies. > + * > + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES > + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF > + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR > + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES > + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN > + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF > + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. > + */ > + > +#include > +#include > +#include > +#include > + > +#include > +#include > +#include > + > +#include > +#include > + > +struct mtsysirq_softc { > + struct device sc_dev; > + bus_space_tag_t sc_iot; > + bus_space_handle_t sc_ioh; > + bus_size_t sc_ios; > + > + int sc_nirq; > + uint32_t *sc_irq_cfg; > + > + struct interrupt_controller sc_ic; > +}; > + > +int mtsysirq_match(struct device *, void *, void *); > +void mtsysirq_attach(struct device *, struct device *, void *); > +int mtsysirq_activate(struct device *, int); > + > +void *mtsysirq_establish_fdt(void *, int *, int, struct cpu_info *, > + int (*)(void *), void *, char *); > + > +const struct cfattach mtsysirq_ca = { > + sizeof(struct mtsysirq_softc), mtsysirq_match, mtsysirq_attach, NULL, > + mtsysirq_activate > +}; > + > +struct cfdriver mtsysirq_cd = { > + NULL, "mtsysirq", DV_DULL > +}; > + > +int > +mtsysirq_match(struct device *parent, void *match, void *aux) > +{ > + struct fdt_attach_args *faa = aux; > + > + return OF_is_compatible(faa->fa_node, "mediatek,mt6577-sysirq"); > +} > + > +void > +mtsysirq_attach(struct device *parent, struct device *self, void *aux) > +{ > + struct mtsysirq_softc *sc = (struct mtsysirq_softc *)self; > + struct fdt_attach_args *faa = aux; > + > + if (faa->fa_nreg < 1) { > + printf(": no registers\n"); > + return; > + } > + > + sc->sc_iot = faa->fa_iot; > + sc->sc_ios = faa->fa_reg[0].size; > + if (bus_space_map(sc->sc_iot, faa->fa_reg[0].addr, > + sc->sc_ios, 0, &sc->sc_ioh)) > + panic("%s: bus_space_map failed!", __func__); > + > + sc->sc_nirq = sc->sc_ios * 8; > + sc->sc_irq_cfg = malloc(sc->sc_ios, M_DEVBUF, M_WAITOK); > + > + sc->sc_ic.ic_node = faa->fa_node; > + sc->sc_ic.ic_cookie = sc; > + sc->sc_ic.ic_establish = mtsysirq_establish_fdt; > + > + printf(" nirq %d\n", sc->sc_nirq); > + > + fdt_intr_register(&sc->sc_ic); > +} > + > +int > +mtsysirq_activate(struct device *self, int act) > +{ > + struct mtsysirq_softc *sc = (struct mtsysirq_softc *)self; > + > + switch (act) { > + case DVACT_SUSPEND: > + bus_space_read_region_4(sc->sc_iot, sc->sc_ioh, 0, > + sc->sc_irq_cfg, sc->sc_ios / sizeof(uint32_t)); > + break; > + case DVACT_RESUME: > + bus_space_write_region_4(sc->sc_iot, sc->sc_ioh, 0, > + sc->sc_irq_cfg, sc->sc_ios / sizeof(uint32_t)); > + break; > + } > + > + return 0; > +} > + > +void > +mtsysirq_invert(struct mtsysirq_softc *sc, int irq) > +{ > + int reg = (irq / 32) * 4; > + int bit = (irq % 32); > + > + bus_space_write_4(sc->sc_iot, sc->sc_ioh, reg, > + bus_space_read_4(sc->sc_iot, sc->sc_ioh, reg) | 1U << bit); > +} > + > +void * > +mtsysirq_establish_fdt(void *cookie, int *cells, int level, > + struct cpu_info *ci, int (*func)(void *), void *arg, char *name) > +{ > + struct mtsysirq_softc *sc = cookie; > + int irq = cells[1]; > + int flags = cells[2]; > + > + KASSERT(cells[0] == 0); > + KASSERT(irq >= 0 && irq < sc->sc_nirq); > + > +#ifdef DEBUG_INTC > + printf("%s: irq %d level %d flags 0x%x [%s]\n", __func__, irq, level, > + flags, name); > +#endif > + > + if (flags & 0xa) > + mtsysirq_invert(sc, irq); > + > + return fdt_intr_parent_establish(&sc->sc_ic, cells, level, ci, func, > + arg, name); > +} > Index: sys/dev/fdt/files.fdt > =================================================================== > RCS file: /cvs/src/sys/dev/fdt/files.fdt,v > retrieving revision 1.204 > diff -u -p -r1.204 files.fdt > --- sys/dev/fdt/files.fdt 16 Nov 2024 21:17:54 -0000 1.204 > +++ sys/dev/fdt/files.fdt 23 Jan 2025 23:17:04 -0000 > @@ -336,6 +336,10 @@ device hitemp > attach hitemp at fdt > file dev/fdt/hitemp.c hitemp > > +device mtsysirq > +attach mtsysirq at fdt > +file dev/fdt/mtsysirq.c mtsysirq > + > device rkanxdp > attach rkanxdp at fdt > file dev/fdt/rkanxdp.c rkanxdp > Index: share/man/man4/mtsysirq.4 > =================================================================== > RCS file: share/man/man4/mtsysirq.4 > diff -N share/man/man4/mtsysirq.4 > --- /dev/null 1 Jan 1970 00:00:00 -0000 > +++ share/man/man4/mtsysirq.4 23 Jan 2025 23:17:04 -0000 > @@ -0,0 +1,46 @@ > +.\" $OpenBSD$ > +.\" > +.\" Copyright (c) 2025 James Hastings > +.\" > +.\" Permission to use, copy, modify, and distribute this software for any > +.\" purpose with or without fee is hereby granted, provided that the above > +.\" copyright notice and this permission notice appear in all copies. > +.\" > +.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES > +.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF > +.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR > +.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES > +.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN > +.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF > +.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. > +.\" > +.Dd $Mdocdate$ > +.Dt MTSYSIRQ 4 > +.Os > +.Sh NAME > +.Nm mtsysirq > +.Nd MediaTek system interrupt controller > +.Sh SYNOPSIS > +.Cd "mtsysirq* at fdt?" > +.Sh DESCRIPTION > +The > +.Nm > +driver provides support for the system interrupt controller > +integrated on MediaTek SoCs. > +The controller provides per-interrupt polarity inversion > +and transparent forwarding to an > +Arm Generic Interrupt Controller (GIC). > +.Sh SEE ALSO > +.Xr intro 4 , > +.Xr ampintc 4 > +.Sh HISTORY > +The > +.Nm > +driver first appeared in > +.Ox 7.7 . > +.Sh AUTHORS > +.An -nosplit > +The > +.Nm > +driver was written by > +.An James Hastings Aq Mt hastings@openbsd.org . > Index: share/man/man4/Makefile > =================================================================== > RCS file: /cvs/src/share/man/man4/Makefile,v > retrieving revision 1.857 > diff -u -p -r1.857 Makefile > --- share/man/man4/Makefile 15 Dec 2024 11:07:08 -0000 1.857 > +++ share/man/man4/Makefile 23 Jan 2025 23:17:04 -0000 > @@ -58,7 +58,8 @@ MAN= aac.4 abcrtc.4 abl.4 ac97.4 acphy.4 > maestro.4 mainbus.4 malo.4 maxds.4 maxrtc.4 maxtmp.4 mbg.4 \ > mcprtc.4 mcx.4 midi.4 mii.4 mfi.4 mfii.4 mfokrtc.4 \ > mlphy.4 moscom.4 mos.4 mpe.4 mpath.4 mpi.4 mpii.4 \ > - mpip.4 mpu.4 msk.4 mpw.4 msts.4 mtd.4 mtdphy.4 mtio.4 mtw.4 mue.4 \ > + mpip.4 mpu.4 msk.4 mpw.4 msts.4 mtd.4 mtdphy.4 mtio.4 \ > + mtsysirq.4 mtw.4 mue.4 \ > multicast.4 mvclock.4 mvdog.4 mvgicp.4 mvgpio.4 mvicu.4 mviic.4 \ > mvkpcie.4 mvneta.4 mvpinctrl.4 mvpp.4 mvrng.4 mvrtc.4 mvspi.4 \ > mvtemp.4 mvsw.4 mvuart.4 myx.4 \ > Index: sys/arch/arm64/conf/GENERIC > =================================================================== > RCS file: /cvs/src/sys/arch/arm64/conf/GENERIC,v > retrieving revision 1.290 > diff -u -p -r1.290 GENERIC > --- sys/arch/arm64/conf/GENERIC 17 Nov 2024 16:35:05 -0000 1.290 > +++ sys/arch/arm64/conf/GENERIC 23 Jan 2025 23:17:04 -0000 > @@ -272,6 +272,9 @@ hidwusb* at fdt? > hireset* at fdt? early 1 > hitemp* at fdt? > > +# MediaTek SoCs > +mtsysirq* at fdt? > + > # Marvell SoCs > mvclock* at fdt? early 1 > mvgicp* at fdt? early 1 > Index: sys/arch/arm64/conf/RAMDISK > =================================================================== > RCS file: /cvs/src/sys/arch/arm64/conf/RAMDISK,v > retrieving revision 1.219 > diff -u -p -r1.219 RAMDISK > --- sys/arch/arm64/conf/RAMDISK 14 Aug 2024 14:40:46 -0000 1.219 > +++ sys/arch/arm64/conf/RAMDISK 23 Jan 2025 23:17:04 -0000 > @@ -204,6 +204,9 @@ hiclock* at fdt? early 1 > hidwusb* at fdt? > hireset* at fdt? early 1 > > +# MediaTek SoCs > +mtsysirq* at fdt? > + > # Marvell SoCs > mvclock* at fdt? early 1 > mvgicp* at fdt? early 1 > Index: sys/arch/armv7/conf/GENERIC > =================================================================== > RCS file: /cvs/src/sys/arch/armv7/conf/GENERIC,v > retrieving revision 1.142 > diff -u -p -r1.142 GENERIC > --- sys/arch/armv7/conf/GENERIC 12 Mar 2023 10:50:06 -0000 1.142 > +++ sys/arch/armv7/conf/GENERIC 23 Jan 2025 23:17:04 -0000 > @@ -184,6 +184,9 @@ bcmtemp* at fdt? > dwctwo* at fdt? > usb* at dwctwo? > > +# MediaTek SoCs > +mtsysirq* at fdt? > + > # Marvell SoC > mvacc* at fdt? early 1 > mvagc* at fdt? > Index: sys/arch/armv7/conf/RAMDISK > =================================================================== > RCS file: /cvs/src/sys/arch/armv7/conf/RAMDISK,v > retrieving revision 1.130 > diff -u -p -r1.130 RAMDISK > --- sys/arch/armv7/conf/RAMDISK 2 Mar 2023 09:59:29 -0000 1.130 > +++ sys/arch/armv7/conf/RAMDISK 23 Jan 2025 23:17:05 -0000 > @@ -170,6 +170,9 @@ sdmmc* at bcmsdhost? > dwctwo* at fdt? > usb* at dwctwo? > > +# MediaTek SoCs > +mtsysirq* at fdt? > + > # Marvell SoC > mvacc* at fdt? early 1 > mvagc* at fdt? > > > console log: > F0: 102B 0000 > F5: 0000 0000 > V0: 0000 0000 [0001] > 00: 0000 0000 > BP: 0400 0041 [0000] > G0: 1190 0000 > T0: 0000 0295 [000F] > Jump to BL > > NOTICE: BL2: v2.10.0 (release):OpenWrt v2024.01.17~bacca82a-3 (mt7622-sdmmc-2ddr) > NOTICE: BL2: Built : 19:52:54, Jan 22 2025 > NOTICE: WDT: [40000000] Software reset (reboot) > NOTICE: CPU: MT7622 > NOTICE: BL2: Booting BL31 > NOTICE: BL31: v2.10.0 (release):OpenWrt v2024.01.17~bacca82a-3 (mt7622-sdmmc-2ddr) > NOTICE: BL31: Built : 19:52:54, Jan 22 2025 > > > U-Boot 2024.10-OpenWrt-r28388-58d0057481 (Jan 22 2025 - 19:52:54 +0000) > > CPU: MediaTek MT7622 > Model: mt7622-bpi-r64 > DRAM: 1 GiB > Core: 68 devices, 26 uclasses, devicetree: separate > MMC: mmc@11230000: 0, mmc@11240000: 1 > Loading Environment from MMC... Reading from MMC(1)... OK > In: serial@11002000 > Out: serial@11002000 > Err: serial@11002000 > reset button found > Loading Environment from MMC... Reading from MMC(1)... OK > Net: eth0: ethernet@1b100000 > MT7622> dhcp bootaa64.efi > BOOTP broadcast 1 > BOOTP broadcast 2 > BOOTP broadcast 3 > DHCP client bound to address > Using ethernet@1b100000 device > TFTP from server > Filename 'bootaa64.efi'. > Load address: 0x48000000 > Loading: *################ > 4.2 MiB/s > done > Bytes transferred = 233390 (38fae hex) > MT7622> tftpboot 0x47000000 mt7622-bpi-r64.dtb > Using ethernet@1b100000 device > TFTP from server > Filename 'mt7622-bpi-r64.dtb'. > Load address: 0x47000000 > Loading: *## > 4.1 MiB/s > done > Bytes transferred = 26006 (6596 hex) > MT7622> bootefi 0x48000000 0x47000000 > Cannot read EFI system partition > Cannot read EFI system partition > Failed to persist EFI variables > Booting /bootaa64.efi > disks: sd0 sd1 > >> OpenBSD/arm64 BOOTAA64 1.20 > boot> bsd > booting tftp0a:bsd ... > Copyright (c) 1982, 1986, 1989, 1991, 1993 > The Regents of the University of California. All rights reserved. > Copyright (c) 1995-2025 OpenBSD. All rights reserved. https://www.OpenBSD.org > > OpenBSD 7.6-current (RAMDISK) #5: Thu Jan 23 18:38:19 EST 2025 > hastings@rpi4a.moose-tek.test:/usr/src/sys/arch/arm64/compile/RAMDISK > real mem = 1071976448 (1022MB) > avail mem = 998469632 (952MB) > random: good seed from bootblocks > mainbus0 at root: Bananapi BPI-R64 > psci0 at mainbus0: PSCI 1.1, SMCCC 1.4, SYSTEM_SUSPEND > efi0 at mainbus0: UEFI 2.10 > efi0: Das U-Boot rev 0x20241000 > smbios0 at efi0: SMBIOS 3.7.0 > smbios0: vendor U-Boot version "2024.10-OpenWrt-r28388-58d0057481" date 10/01/2024 > smbios0: mediatek mt7622-bpi-r64 > cpu0 at mainbus0 mpidr 0: ARM Cortex-A53 r0p4 > cpu0: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache > cpu0: 256KB 64b/line 16-way L2 cache > cpu0: CRC32,SHA2,SHA1,AES+PMULL,ASID16 > "ramoops" at mainbus0 not configured > "secmon" at mainbus0 not configured > syscon0 at mainbus0: "infracfg" > syscon1 at mainbus0: "pericfg" > syscon2 at mainbus0: "power-controller" > ampintc0 at mainbus0 nirq 288, ncpu 4: "interrupt-controller" > syscon3 at mainbus0: "clock-controller" > syscon4 at mainbus0: "pciecfg" > syscon5 at mainbus0: "clock-controller" > syscon6 at mainbus0: "pcie-mirror" > syscon7 at mainbus0: "wed" > syscon8 at mainbus0: "wed" > syscon9 at mainbus0: "sgmiisys" > "opp-table" at mainbus0 not configured > "dummy40m" at mainbus0 not configured > "oscillator" at mainbus0 not configured > "pmu" at mainbus0 not configured > agtimer0 at mainbus0: 12500 kHz > "pwrap" at mainbus0 not configured > "ir-receiver" at mainbus0 not configured > mtsysirq0 at mainbus0 nirq 256 > "efuse" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "rng" at mainbus0 not configured > "pinctrl" at mainbus0 not configured > "watchdog" at mainbus0 not configured > "rtc" at mainbus0 not configured > "cci" at mainbus0 not configured > "adc" at mainbus0 not configured > com0 at mainbus0: ns16550a, 16 byte fifo > com0: console > "pwm" at mainbus0 not configured > "i2c" at mainbus0 not configured > "i2c" at mainbus0 not configured > "spi" at mainbus0 not configured > "thermal" at mainbus0 not configured > "serial" at mainbus0 not configured > "spi" at mainbus0 not configured > "ecc" at mainbus0 not configured > "mmc" at mainbus0 not configured > "mmc" at mainbus0 not configured > "wmac" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "usb" at mainbus0 not configured > "t-phy" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "pcie" at mainbus0 not configured > "pcie" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "dma-controller" at mainbus0 not configured > "ethernet" at mainbus0 not configured > "gpio-keys" at mainbus0 not configured > "leds" at mainbus0 not configured > "regulator-1p8v" at mainbus0 not configured > "regulator-3p3v" at mainbus0 not configured > "regulator-5v" at mainbus0 not configured > softraid0 at root > scsibus0 at softraid0: 256 targets > root on rd0a swap on rd0b dump on rd0b > WARNING: CHECK AND RESET THE DATE! > cpu0: clock not implemented > erase ^?, werase ^W, kill ^U, intr ^C, status ^T > > Welcome to the OpenBSD/arm64 7.6 installation program. > (I)nstall, (U)pgrade, (A)utoinstall or (S)hell? s > # sysctl > kern.osrelease=7.6 > hw.machine=arm64 > hw.model=ARM Cortex-A53 r0p4 > hw.product=mt7622-bpi-r64 > hw.disknames=rd0:43375a97a110a516 > hw.ncpufound=2 > machdep.compatible=bananapi,bpi-r64 > # mount > /dev/rd0a on / type ffs (local) > # ifconfig > lo0: flags=2008008 mtu 32768 > llprio 3 > groups: lo > # reboot > syncing disks... done > rebooting... > > F0: 102B 0000 > F5: 0000 0000 > V0: 0000 0000 [0001] > 00: 0000 0000 > BP: 0400 0041 [0000] > G0: 1190 0000 > T0: 0000 0294 [000F] > Jump to BL > > NOTICE: BL2: v2.10.0 (release):OpenWrt v2024.01.17~bacca82a-3 (mt7622-sdmmc-2ddr) > NOTICE: BL2: Built : 19:52:54, Jan 22 2025 > NOTICE: WDT: [40000000] Software reset (reboot) > NOTICE: CPU: MT7622 > NOTICE: BL2: Booting BL31 > NOTICE: BL31: v2.10.0 (release):OpenWrt v2024.01.17~bacca82a-3 (mt7622-sdmmc-2ddr) > NOTICE: BL31: Built : 19:52:54, Jan 22 2025 > > > U-Boot 2024.10-OpenWrt-r28388-58d0057481 (Jan 22 2025 - 19:52:54 +0000) > > CPU: MediaTek MT7622 > Model: mt7622-bpi-r64 > DRAM: 1 GiB > Core: 68 devices, 26 uclasses, devicetree: separate > MMC: mmc@11230000: 0, mmc@11240000: 1 > Loading Environment from MMC... Reading from MMC(1)... OK > In: serial@11002000 > Out: serial@11002000 > Err: serial@11002000 > reset button found > Loading Environment from MMC... Reading from MMC(1)... OK > Net: eth0: ethernet@1b100000 > MT7622> dhcp bootaa64.efi > > BOOTP broadcast 1 > DHCP client bound to address > Using ethernet@1b100000 device > TFTP from server > Filename 'bootaa64.efi'. > Load address: 0x48000000 > Loading: *################ > 4.2 MiB/s > done > Bytes transferred = 233390 (38fae hex) > MT7622> tftpboot 0x47000000 mt7622-bpi-r64.dtb > Using ethernet@1b100000 device > TFTP from server > Filename 'mt7622-bpi-r64.dtb'. > Load address: 0x47000000 > Loading: *## > 4.1 MiB/s > done > Bytes transferred = 26006 (6596 hex) > MT7622> bootefi 0x48000000 0x47000000 > Cannot read EFI system partition > Cannot read EFI system partition > Failed to persist EFI variables > Booting /bootaa64.efi > disks: sd0 sd1 > >> OpenBSD/arm64 BOOTAA64 1.20 > boot> bsd.7622 > booting tftp0a:bsd.7622: ... > [ using 3072056 bytes of bsd ELF symbol table ] > Copyright (c) 1982, 1986, 1989, 1991, 1993 > The Regents of the University of California. All rights reserved. > Copyright (c) 1995-2025 OpenBSD. All rights reserved. https://www.OpenBSD.org > > OpenBSD 7.6-current (GENERIC.MP) #0: Thu Jan 23 20:19:48 EST 2025 > hastings@rpi4a.moose-tek.test:/usr/src/sys/arch/arm64/compile/GENERIC.MP > real mem = 1071976448 (1022MB) > avail mem = 998383616 (952MB) > random: good seed from bootblocks > mainbus0 at root: Bananapi BPI-R64 > psci0 at mainbus0: PSCI 1.1, SMCCC 1.4, SYSTEM_SUSPEND > efi0 at mainbus0: UEFI 2.10 > efi0: Das U-Boot rev 0x20241000 > smbios0 at efi0: SMBIOS 3.7.0 > smbios0: vendor U-Boot version "2024.10-OpenWrt-r28388-58d0057481" date 10/01/2024 > smbios0: mediatek mt7622-bpi-r64 > cpu0 at mainbus0 mpidr 0: ARM Cortex-A53 r0p4 > cpu0: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache > cpu0: 256KB 64b/line 16-way L2 cache > cpu0: CRC32,SHA2,SHA1,AES+PMULL,ASID16 > cpu1 at mainbus0 mpidr 1: ARM Cortex-A53 r0p4 > cpu1: 32KB 64b/line 2-way L1 VIPT I-cache, 32KB 64b/line 4-way L1 D-cache > cpu1: 256KB 64b/line 16-way L2 cache > "ramoops" at mainbus0 not configured > "secmon" at mainbus0 not configured > apm0 at mainbus0 > syscon0 at mainbus0: "infracfg" > syscon1 at mainbus0: "pericfg" > syscon2 at mainbus0: "power-controller" > ampintc0 at mainbus0 nirq 288, ncpu 4 ipi: 0, 1, 2: "interrupt-controller" > syscon3 at mainbus0: "clock-controller" > syscon4 at mainbus0: "pciecfg" > syscon5 at mainbus0: "clock-controller" > syscon6 at mainbus0: "pcie-mirror" > syscon7 at mainbus0: "wed" > syscon8 at mainbus0: "wed" > syscon9 at mainbus0: "sgmiisys" > "opp-table" at mainbus0 not configured > "dummy40m" at mainbus0 not configured > "oscillator" at mainbus0 not configured > "pmu" at mainbus0 not configured > agtimer0 at mainbus0: 12500 kHz > "pwrap" at mainbus0 not configured > "ir-receiver" at mainbus0 not configured > mtsysirq0 at mainbus0 nirq 256 > "efuse" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "rng" at mainbus0 not configured > "pinctrl" at mainbus0 not configured > "watchdog" at mainbus0 not configured > "rtc" at mainbus0 not configured > "cci" at mainbus0 not configured > "adc" at mainbus0 not configured > com0 at mainbus0: ns16550a, 16 byte fifo > com0: console > "pwm" at mainbus0 not configured > "i2c" at mainbus0 not configured > "i2c" at mainbus0 not configured > "spi" at mainbus0 not configured > "thermal" at mainbus0 not configured > "serial" at mainbus0 not configured > "spi" at mainbus0 not configured > "ecc" at mainbus0 not configured > "mmc" at mainbus0 not configured > "mmc" at mainbus0 not configured > "wmac" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "usb" at mainbus0 not configured > "t-phy" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "pcie" at mainbus0 not configured > "pcie" at mainbus0 not configured > "clock-controller" at mainbus0 not configured > "dma-controller" at mainbus0 not configured > "ethernet" at mainbus0 not configured > gpiokeys0 at mainbus0: "factory", "wps" > gpioleds0 at mainbus0: "bpi-r64:pio:green", "bpi-r64:pio:red" > "regulator-1p8v" at mainbus0 not configured > "regulator-3p3v" at mainbus0 not configured > "regulator-5v" at mainbus0 not configured > vscsi0 at root > scsibus0 at vscsi0: 256 targets > softraid0 at root > scsibus1 at softraid0: 256 targets > root device: > use one of: exit > root device: > use one of: exit > root device: exit > syncing disks... done > >