From: Sven Schuchmann <schuchmann@schleissheimer.de>
To: "linux-can@vger.kernel.org" <linux-can@vger.kernel.org>
Subject: mcp251xfd No Oscillator (clock) defined
Date: Sun, 6 Dec 2020 10:18:23 +0000 [thread overview]
Message-ID: <DB8P190MB0634231494D3D788E87DCE54D9CF0@DB8P190MB0634.EURP190.PROD.OUTLOOK.COM> (raw)
Hi all,
I am new to the list so sorry for any errors.
I want to get Seeed "2 Channel CAN BUS FD Shield for Raspberry Pi"
https://wiki.seeedstudio.com/2-Channel-CAN-BUS-FD-Shield-for-Raspberry-Pi/
get to work on a Raspberry Pi Compute Module 4 IO Board
https://www.raspberrypi.org/products/compute-module-4-io-board
I have installed the Raspberry Pi OS with Raspberry Pi Imager
$ uname -a
Linux raspberrypi 5.4.79-v7l+ #1373 SMP Mon Nov 23 13:27:40 GMT 2020 armv7l GNU/Linux
without any changes. Therefore I tried the following commands to load the overlay
$ sudo dtoverlay spi0-1cs cs0_pin=24
$ sudo dtoverlay mcp251xfd spi0-1 oscillator=40000000 speed=20000000 interrupt=18
then dmesg shows me this:
[ 175.674317] spi spi0.1: setting up native-CS1 to use GPIO
[ 175.733692] CAN device driver interface
[ 175.737453] mcp251xfd spi0.1: No Oscillator (clock) defined.
Can anyone help me to setup the Oscillator?
I already tried to enable "dtparam=spi=on" in /boot/config.txt but this does not change anything.
I also tried the second CAN interface to run on SPI1 with
$ sudo dtoverlay spi1-1cs cs0_pin=12
$ sudo dtoverlay mcp251xfd spi1-1 oscillator=40000000 speed=20000000 interrupt=22
but then kernel seems to crash
[ 226.615817] ------------[ cut here ]------------
[ 226.615842] kernel BUG at mm/slub.c:4010!
[ 226.615860] Internal error: Oops - BUG: 0 [#1] SMP ARM
[ 226.615878] Modules linked in: spi_bcm2835aux mcp251xfd can_dev binfmt_misc sha256_generic libsha256 cfg80211 rfkill 8021q garp stp llc spidev raspberrypi_hwmon vc4 cec drm_kms_helper v3d gpu_sched bcm2835_codec(C) drm snd_soc_core snd_bcm2835(C) bcm2835_isp(C) drm_panel_orientation_quirks bcm2835_v4l2(C) snd_compress v4l2_mem2mem bcm2835_mmal_vchiq(C) videobuf2_dma_contig videobuf2_vmalloc snd_pcm_dmaengine videobuf2_memops videobuf2_v4l2 videobuf2_common snd_pcm snd_timer syscopyarea snd sysfillrect videodev sysimgblt rpivid_mem fb_sys_fops mc vc_sm_cma(C) spi_bcm2835 uio_pdrv_genirq uio ip_tables x_tables ipv6
[ 226.616079] CPU: 0 PID: 631 Comm: dtoverlay Tainted: G C 5.4.79-v7l+ #1373
[ 226.616101] Hardware name: BCM2711
[ 226.616131] PC is at kfree+0x240/0x290
[ 226.616154] LR is at free_overlay_changeset+0x84/0xa8
[ 226.616172] pc : [<c03f5fa0>] lr : [<c08ff00c>] psr: 40000013
[ 226.616191] sp : d6e8ddb0 ip : d6e8dde0 fp : d6e8dddc
[ 226.616208] r10: c1204fc8 r9 : d7047a00 r8 : d7047a00
[ 226.616225] r7 : d61b8000 r6 : c08ff00c r5 : 00000000 r4 : dc0e5280
[ 226.616244] r3 : c12a11a8 r2 : 00000030 r1 : 00000000 r0 : d61b8000
[ 226.616264] Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 226.616284] Control: 30c5383d Table: 17047600 DAC: fffffffd
[ 226.616304] Process dtoverlay (pid: 631, stack limit = 0x8d6d8885)
[ 226.616323] Stack: (0xd6e8ddb0 to 0xd6e8e000)
[ 226.616341] dda0: dc0e5280 00000002 d6e8ddf4 d7047c40
[ 226.616367] ddc0: d7047c40 ffffffea d61b8584 d7047a00 d6e8ddf4 d6e8dde0 c08ff00c c03f5d6c
[ 226.616392] dde0: d7047c40 d61b8000 d6e8de6c d6e8ddf8 c08ffbd8 c08fef94 00000000 c03f734c
[ 226.616416] de00: d7047c44 c1204fc8 d7047c40 d7047c60 c12927f4 c1368484 d682503c c0e40498
[ 226.616441] de20: d6158000 ffffffea d6825000 d61b8000 d6158174 d6826000 f0851000 449c3aea
[ 226.616466] de40: d7047700 00001862 d6825000 d6824000 00000000 d7047700 00000008 d41ba4c8
[ 226.616491] de60: d6e8de8c d6e8de70 c08f8fa8 c08ffac8 d6ce6380 d6fc4b40 d41ba4c8 d7047704
[ 226.616516] de80: d6e8deb4 d6e8de90 c04ac400 c08f8f50 d6fc4b40 d41ba4c8 000d801e ef97a610
[ 226.616540] dea0: d55382a8 00000008 d6e8def4 d6e8deb8 c040e3e4 c04ac384 00000000 00000000
[ 226.616565] dec0: c020ce54 d6fc4b48 d682d170 d6fc4b40 00000000 d682cc40 d682d19c c12b9d54
[ 226.616590] dee0: d682d170 c1204fc8 d6e8df04 d6e8def8 c040e59c c040e34c d6e8df2c d6e8df08
[ 226.616614] df00: c02433f8 c040e590 ffffe000 d6e8dfb0 c02011c4 00000004 fffffe30 5ac3c35a
[ 226.616639] df20: d6e8dfac d6e8df30 c020ce54 c0243350 d6e8df4c d6e8df40 5ac3c35a c1204fcc
[ 226.616664] df40: d6e8df6c d6e8df50 c0407de8 c040eb18 00000003 d6864800 d686484c 00000000
[ 226.616688] df60: d6e8df94 d6e8df70 c042fcc0 c0407d84 00173198 b6ecbb1c 00000000 449c3aea
[ 226.616713] df80: c02011c4 00173198 b6ecbb1c 00000000 00000006 c02011c4 d6e8c000 00000006
[ 226.616738] dfa0: 00000000 d6e8dfb0 c0201034 c020c8cc 00000000 00000444 b6ecb6d8 b6deb864
[ 226.616762] dfc0: 00173198 b6ecbb1c 00000000 00000006 001743a0 00000000 00000000 00174268
[ 226.616787] dfe0: 0000006c bed894d0 b6ded088 b6e50f74 20000010 00000003 00000000 00000000
[ 226.616807] Backtrace:
[ 226.616833] [<c03f5d60>] (kfree) from [<c08ff00c>] (free_overlay_changeset+0x84/0xa8)
[ 226.616859] r8:d7047a00 r7:d61b8584 r6:ffffffea r5:d7047c40 r4:d7047c40
[ 226.616886] [<c08fef88>] (free_overlay_changeset) from [<c08ffbd8>] (of_overlay_fdt_apply+0x11c/0x990)
[ 226.616909] r5:d61b8000 r4:d7047c40
[ 226.616932] [<c08ffabc>] (of_overlay_fdt_apply) from [<c08f8fa8>] (cfs_overlay_item_dtbo_write+0x64/0xa4)
[ 226.616958] r10:d41ba4c8 r9:00000008 r8:d7047700 r7:00000000 r6:d6824000 r5:d6825000
[ 226.616980] r4:00001862
[ 226.617004] [<c08f8f44>] (cfs_overlay_item_dtbo_write) from [<c04ac400>] (configfs_release_bin_file+0x88/0xb0)
[ 226.617030] r7:d7047704 r6:d41ba4c8 r5:d6fc4b40 r4:d6ce6380
[ 226.617055] [<c04ac378>] (configfs_release_bin_file) from [<c040e3e4>] (__fput+0xa4/0x244)
[ 226.617081] r9:00000008 r8:d55382a8 r7:ef97a610 r6:000d801e r5:d41ba4c8 r4:d6fc4b40
[ 226.617108] [<c040e340>] (__fput) from [<c040e59c>] (____fput+0x18/0x1c)
[ 226.617129] r10:c1204fc8 r9:d682d170 r8:c12b9d54 r7:d682d19c r6:d682cc40 r5:00000000
[ 226.617150] r4:d6fc4b40
[ 226.617174] [<c040e584>] (____fput) from [<c02433f8>] (task_work_run+0xb4/0xd4)
[ 226.617202] [<c0243344>] (task_work_run) from [<c020ce54>] (do_work_pending+0x594/0x59c)
[ 226.617227] r9:5ac3c35a r8:fffffe30 r7:00000004 r6:c02011c4 r5:d6e8dfb0 r4:ffffe000
[ 226.617254] [<c020c8c0>] (do_work_pending) from [<c0201034>] (slow_work_pending+0xc/0x20)
[ 226.617276] Exception stack(0xd6e8dfb0 to 0xd6e8dff8)
[ 226.617294] dfa0: 00000000 00000444 b6ecb6d8 b6deb864
[ 226.617319] dfc0: 00173198 b6ecbb1c 00000000 00000006 001743a0 00000000 00000000 00174268
[ 226.617343] dfe0: 0000006c bed894d0 b6ded088 b6e50f74 20000010 00000003
[ 226.617365] r10:00000006 r9:d6e8c000 r8:c02011c4 r7:00000006 r6:00000000 r5:b6ecbb1c
[ 226.617386] r4:00173198
[ 226.617405] Code: 1a000003 e5943008 e3130001 1a000000 (e7f001f2)
[ 226.617428] ---[ end trace cd616810d13be5e4 ]---
Sven
--
Sven Schuchmann
Schleißheimer Soft- und
Hardwareentwicklung GmbH
Am Kalkofen 10
61206 Nieder-Wöllstadt
GERMANY
Phone: +49 6034 9148 711
Fax: +49 6034 9148 91
Email: schuchmann@schleissheimer.de
next reply other threads:[~2020-12-06 10:19 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-06 10:18 Sven Schuchmann [this message]
2020-12-06 10:32 ` mcp251xfd No Oscillator (clock) defined Marc Kleine-Budde
2020-12-06 12:40 ` AW: " Sven Schuchmann
2020-12-06 12:57 ` Marc Kleine-Budde
2020-12-06 14:56 ` Patrick Menschel
2020-12-06 16:28 ` AW: " Sven Schuchmann
2020-12-06 18:31 ` Marc Kleine-Budde
2020-12-06 19:15 ` Patrick Menschel
2020-12-06 19:26 ` Kurt Van Dijck
2020-12-06 19:34 ` Marc Kleine-Budde
2020-12-06 19:56 ` AW: " Sven Schuchmann
2020-12-06 20:14 ` Marc Kleine-Budde
2020-12-06 20:36 ` AW: " Sven Schuchmann
2020-12-06 20:48 ` Marc Kleine-Budde
2020-12-06 21:23 ` AW: " Sven Schuchmann
2020-12-06 22:00 ` Marc Kleine-Budde
2020-12-07 9:35 ` AW: " Sven Schuchmann
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