Date: Sun, 31 Jul 2016 13:17:51 +0200 From: Benny Goemans <benny.goemans@belgacom.net> To: freebsd-arm@freebsd.org Subject: 11.0-BETA2: PWM on Beagle Bone Black kernel panic? Message-ID: <8564a38f541adda22c9aaafa8ed856f0@roundcube.malavon.com>
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All, I've tried enabling PWM on a Beagle Bone Black (tried both PWM 1 & 2) by modifying the DTS. Once I reboot the boot ends with a kernel panic. Now, I might simply be doing something wrong which is why I haven't created a bug for this yet. I haven't used PWM with FreeBSD in quite a long time. Kernel output is attached below. No other changes were made to the default BETA2 image, downloaded from ftp://ftp.freebsd.org/pub/FreeBSD/releases/arm/armv6/ISO-IMAGES/11.0/FreeBSD-11.0-BETA2-arm-armv6-BEAGLEBONE.img.xz). If anyone needs more information, please ask. What I added in the default beaglebone-black.dts: &am33xx_pinmux { /* other stuff snipped here */ ehrpwm2_pins: pinmux_ehrpwm2_pins { pinctrl-single,pins = < AM33XX_IOPAD(0x820, PIN_OUTPUT | MUX_MODE4) /* gpmc_ad9.ehrpwm2a */ AM33XX_IOPAD(0x824, PIN_OUTPUT | MUX_MODE4) /* gpmc_ad8.ehrpwm2b */ >; }; } /* other stuff snipped */ &ehrpwm2 { status = "okay"; pinctrl-names = "default"; pinctrl-0 = <&ehrpwm2_pins>; }; Recompiled with 'make builddtb' and then copied to /boot/dtb Kind regards, Benny Goemans Full output from serial console: U-Boot SPL 2014.10 (Jul 22 2016 - 09:57:50) MMC: block number 0x100 exceeds max(0x0) MMC: block number 0x200 exceeds max(0x0) *** Error - No Valid Environment Area found Using default environment reading u-boot.img reading u-boot.img U-Boot 2014.10 (Jul 22 2016 - 09:57:50) Watchdog enabled I2C: ready DRAM: 512 MiB MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1 reading u-boot.env ** Unable to read "u-boot.env" from mmc0:1 ** Using default environment Net: <ethaddr> not set. Validating first E-fuse MAC cpsw, usb_ether reading uEnv.txt ** Unable to read file uEnv.txt ** Hit any key to stop autoboot: 0 Booting from: mmc 0 ubldr reading ubldr 271821 bytes read in 31 ms (8.4 MiB/s) ## Starting application at 0x88000098 ... Consoles: U-Boot console Compatible U-Boot API signature found @0x9e731510 FreeBSD/armv6 U-Boot loader, Revision 1.2 (root@releng2.nyi.freebsd.org, Fri Jul 22 10:12:56 UTC 2016) DRAM: 512MB Number of U-Boot devices: 3 U-Boot env: loaderdev='mmc 0' Found U-Boot device: disk Checking unit=0 slice=<auto> partition=<auto>... good. Booting from disk0s2a: /boot/kernel/kernel data=0x6cbfe4+0xc401c syms=[0x4+0x7e0f0+0x4+0x9120e] Hit [Enter] to boot immediately, or any other key for command prompt. Booting [/boot/kernel/kernel]... /boot/dtb/beaglebone-black.dtb size=0x8566 Loaded DTB from file 'beaglebone-black.dtb'. Kernel entry at 0x0x88200100... Kernel args: (null) Copyright (c) 1992-2016 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 11.0-BETA2 #0 r303168: Fri Jul 22 10:19:10 UTC 2016 root@releng2.nyi.freebsd.org:/usr/obj/arm.armv6/usr/src/sys/BEAGLEBONE arm FreeBSD clang version 3.8.0 (tags/RELEASE_380/final 262564) (based on LLVM 3.8.0 ) VT: init without driver. CPU: Cortex A8-r3 rev 2 (Cortex-A core) Supported features: ARM_ISA THUMB2 JAZELLE THUMBEE ARMv4 Security_Ext WB enabled LABT branch prediction disabled LoUU:2 LoC:3 LoUIS:1 Cache level 1: 32KB/64B 4-way data cache WT WB Read-Alloc 32KB/64B 4-way instruction cache Read-Alloc Cache level 2: 256KB/64B 8-way unified cache WT WB Read-Alloc Write-Alloc real memory = 536870912 (512 MB) avail memory = 514383872 (490 MB) Texas Instruments AM335x Processor, Revision ES1.2 random: entropy device external interface kbd0 at kbdmux0 ofwbus0: <Open Firmware Device Tree> simplebus0: <Flattened device tree simple bus> on ofwbus0 simplebus1: <Flattened device tree simple bus> on simplebus0 simplebus2: <Flattened device tree simple bus> mem 0x210000-0x211fff on simplebu s1 ti_scm0: <TI Control Module> mem 0-0x7ff on simplebus2 aintc0: <TI AINTC Interrupt Controller> mem 0x48200000-0x48200fff on simplebus0 aintc0: Revision 5.0 cpulist0: <Open Firmware CPU Group> on ofwbus0 cpu0: <Open Firmware CPU> on cpulist0 pmu0: <Performance Monitoring Unit> on ofwbus0 am335x_prcm0: <AM335x Power and Clock Management> mem 0x200000-0x203fff on simpl ebus1 am335x_prcm0: Clocks: System 24.0 MHz, CPU 1000 MHz ti_pinmux0: <TI Pinmux Module> mem 0x800-0xa37 on simplebus2 gpio0: <TI AM335x General Purpose I/O (GPIO)> mem 0x44e07000-0x44e07fff on simpl ebus0 gpiobus0: <OFW GPIO bus> on gpio0 gpioc0: <GPIO controller> on gpio0 gpio1: <TI AM335x General Purpose I/O (GPIO)> mem 0x4804c000-0x4804cfff on simpl ebus0 gpiobus1: <OFW GPIO bus> on gpio1 gpioled0: <GPIO led> at pin 21 on gpiobus1 gpioled1: <GPIO led> at pin 22 on gpiobus1 gpioled2: <GPIO led> at pin 23 on gpiobus1 gpioled3: <GPIO led> at pin 24 on gpiobus1 gpioc1: <GPIO controller> on gpio1 gpio2: <TI AM335x General Purpose I/O (GPIO)> mem 0x481ac000-0x481acfff on simpl ebus0 gpiobus2: <OFW GPIO bus> on gpio2 gpioc2: <GPIO controller> on gpio2 gpio3: <TI AM335x General Purpose I/O (GPIO)> mem 0x481ae000-0x481aefff on simpl ebus0 gpiobus3: <OFW GPIO bus> on gpio3 gpioc3: <GPIO controller> on gpio3 uart0: <TI UART (16550 compatible)> mem 0x44e09000-0x44e0afff on simplebus0 uart0: console (115384,n,8,1) iichb0: <TI I2C Controller> mem 0x44e0b000-0x44e0bfff on simplebus0 iichb0: I2C revision 4.0 FIFO size: 32 bytes iicbus0: <OFW I2C bus> on iichb0 iic0: <I2C generic I/O> on iicbus0 am335x_pmic0: <TI TPS65217 Power Management IC> at addr 0x48 on iicbus0 iicbus0: <unknown card> at addr 0xa0 tda0 at addr 0xe0 on iicbus0 tda1 at addr 0xe0 on iicbus0 iichb1: <TI I2C Controller> mem 0x4802a000-0x4802afff on simplebus0 iichb1: I2C revision 4.0 FIFO size: 32 bytes iicbus1: <OFW I2C bus> on iichb1 iic1: <I2C generic I/O> on iicbus1 iichb2: <TI I2C Controller> mem 0x4819c000-0x4819cfff on simplebus0 iichb2: I2C revision 4.0 FIFO size: 32 bytes iicbus2: <OFW I2C bus> on iichb2 iic2: <I2C generic I/O> on iicbus2 iicbus2: <unknown card> at addr 0xa8 iicbus2: <unknown card> at addr 0xaa iicbus2: <unknown card> at addr 0xac iicbus2: <unknown card> at addr 0xae sdhci_ti0: <TI MMCHS (SDHCI 2.0)> mem 0x48060000-0x48060fff on simplebus0 mmc0: <MMC/SD bus> on sdhci_ti0 sdhci_ti1: <TI MMCHS (SDHCI 2.0)> mem 0x481d8000-0x481d8fff on simplebus0 mmc1: <MMC/SD bus> on sdhci_ti1 ti_wdt0: <TI Watchdog Timer> mem 0x44e35000-0x44e35fff on simplebus0 ti_mbox0: <TI System Mailbox> mem 0x480c8000-0x480c81ff on simplebus0 ti_mbox0: revision 4.0 am335x_dmtimer0: <AM335x DMTimer2> mem 0x48040000-0x480403ff on simplebus0 Event timer "DMTimer2" frequency 24000000 Hz quality 500 am335x_dmtimer1: <AM335x DMTimer3> mem 0x48042000-0x480423ff on simplebus0 Timecounter "DMTimer3" frequency 24000000 Hz quality 500 am335x_rtc0: <AM335x RTC (power management mode)> mem 0x44e3e000-0x44e3efff on simplebus0 am335x_rtc0: AM335X RTC v1.0.6 spi0: <TI McSPI controller> mem 0x481a0000-0x481a03ff on simplebus0 spi0: scheme: 0x1 func: 0x30 rtl: 1 rev: 2.11 custom rev: 0 spibus0: <OFW SPI bus> on spi0 usbss0: <TI AM33xx integrated USB OTG controller> mem 0x47400000-0x47400fff on simplebus0 usbss0: TI AM335X USBSS v0.0.13 musbotg0: <TI AM33xx integrated USB OTG controller> mem 0x47401400-0x474017ff,0x47401000-0x474011ff on usbss0 usbus0: Dynamic FIFO sizing detected, assuming 16Kbytes of FIFO RAM usbus0 on musbotg0 musbotg1: <TI AM33xx integrated USB OTG controller> mem 0x47401c00-0x47401fff,0x47401800-0x474019ff on usbss0 usbus1: Dynamic FIFO sizing detected, assuming 16Kbytes of FIFO RAM usbus1 on musbotg1 am335x_pwmss0: <AM335x PWM> mem 0x48304000-0x4830400f on simplebus0 am335x_ehrpwm0: <AM335x EHRPWM> mem 0x48304200-0x4830427f on am335x_pwmss0 cpswss0: <3-port Switch Ethernet Subsystem> mem 0x4a100000-0x4a1007ff,0x4a101200-0x4a1012ff on simplebus0 cpswss0: CPSW SS Version 1.12 (0) cpswss0: Initial queue size TX=128 RX=384 cpsw0: <Ethernet Switch Port> on cpswss0 miibus0: <MII bus> on cpsw0 smscphy0: <SMC LAN8710A 10/100 interface> PHY 0 on miibus0 smscphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto cpsw0: Ethernet address: 1c:ba:8c:a8:8c:1c fb0: <AM335x LCD controller> mem 0x4830e000-0x4830efff on simplebus0 ti_adc0: <TI ADC controller> mem 0x44e0d000-0x44e0dfff disabled on simplebus0 ti_adc0: scheme: 0x1 func: 0x730 rtl: 0 rev: 0.1 custom rev: 0 ti_pruss0: <TI Programmable Realtime Unit Subsystem> mem 0x4a300000-0x4a37ffff on simplebus0 ti_pruss0: AM33xx PRU-ICSS cryptosoft0: <software crypto> Timecounters tick every 10.000 msec usbus0: 480Mbps High Speed USB v2.0 usbus1: 480Mbps High Speed USB v2.0 am335x_pmic0: TPS65217C ver 1.2 powered by AC tda0: TDA19988 ugen0.1: <Mentor Graphics> at usbus0 uhub0: <Mentor Graphics OTG Root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0 ugen1.1: <Mentor Graphics> at usbus1 uhub1: <Mentor Graphics OTG Root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1 uhub0: 1 port with 1 removable, self powered uhub1: 1 port with 1 removable, self powered tda0: failed to read EDID tda1: TDA19988 tda1: failed to read EDID mmcsd0: 8GB <SDHC SU08G 8.0 SN 0E8E8105 MFG 04/2011 by 3 SD> at mmc0 24.0MHz/4bit/65535-block mmcsd1: 2GB <MMC MMC02G 4.2 SN DE6390C6 MFG 02/1998 by 254 0x004e> at mmc1 48.0MHz/8bit/65535-block Trying to mount root from ufs:/dev/ufs/rootfs [rw]... WARNING: / was not properly dismounted warning: no time-of-day clock registered, system time will not be set accurately Setting hostuuid: 1662bbe9-4ff6-11e6-8cda-1cba8ca88c1c. Setting hostid: 0x4d53055b. Starting file system checks: /dev/ufs/rootfs: 32999 files, 283298 used, 1594709 free (325 frags, 199298 blocks, 0.0% fragmentation) Mounting local filesystems:. ELF ldconfig path: /lib /usr/lib /usr/lib/compat /usr/local/lib /usr/local/lib/perl5/5.20/mach/CORE random: unblocking device. Soft Float compatibility ldconfig path: Setting hostname: beaglebone. Setting up harvesting: [UMA],[FS_ATIME],SWI,INTERRUPT,NET_NG,NET_ETHER,NET_TUN,MOUSE,KEYBOARD,ATTACH,CACHED Feeding entropy: . cpsw0: link state changed to DOWN cpsw0: link state changed to UP Starting Network: lo0 cpsw0. lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6> inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2 inet 127.0.0.1 netmask 0xff000000 groups: lo nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> cpsw0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=8000b<RXCSUM,TXCSUM,VLAN_MTU,LINKSTATE> ether 1c:ba:8c:a8:8c:1c media: Ethernet autoselect (100baseTX <full-duplex>) status: active nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> Starting devd. Fatal kernel mode data abort: 'Translation Fault (L2)' on read trapframe: 0xde3bdc48 FSR=00000007, FAR=00000000, spsr=20000013 r0 =00000001, r1 =00000000, r2 =00000001, r3 =c2c7d6e0 r4 =de3bddb8, r5 =c29e5cc0, r6 =00000001, r7 =c0960424 r8 =00000000, r9 =c2c7d6e0, r10=de3bddb8, r11=de3bdcf8 r12=fefefeff, ssp=de3bdcd8, slr=00008080, pc =c04f8b74 panic: Fatal abort Uptime: 17s Automatic reboot in 15 seconds - press a key on the console to abort --> Press a key on the console to reboot, --> or switch off the system now.
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