i.MX6ULL issue with kernel after loading SDMA module

illyau — Tue, 07 Mar 2023 23:06:26 GMT

Hi everyone I'm one of the students currently working on a datalogging i.MX6ULL board. For our purpuses we need the SDMA module. But as soon as I include it in the menuconfig of the kernel build the board won't boot. Here is the boot log. It stops right after the SDMA mesages.

Would really appreciate any help!

Starting kernel ... Booting Linux on physical CPU 0x0 Linux version 5.15.71-00002-g9c3c24b92ece (pi@raspberrypi) (gcc (Raspbian 8.3.0-6+rpi1) 8.3.0, GNU ld (GNU Binutils for Raspbian) 2.31.1) #2 SMP PREEMPT Tue Mar 7 22:23:17 GMT 2023 CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c5387d CPU: div instructions available: patching division code CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache OF: fdt: Machine model: Datalogger rev2.0 v1.4 sDMA test Memory policy: Data cache writealloc Zone ranges: Normal [mem 0x0000000080000000-0x000000009fffffff] HighMem empty Movable zone start for each node Early memory node ranges node 0: [mem 0x0000000080000000-0x000000009fffffff] Initmem setup node 0 [mem 0x0000000080000000-0x000000009fffffff] percpu: Embedded 16 pages/cpu s34124 r8192 d23220 u65536 Built 1 zonelists, mobility grouping on. Total pages: 130048 Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk1p2 coherent_pool=4M net.ifnames=0 rootwait rw Dentry cache hash table entries: 65536 (order: 6, 262144 bytes, linear) Inode-cache hash table entries: 32768 (order: 5, 131072 bytes, linear) mem auto-init: stack:off, heap alloc:off, heap free:off Memory: 500416K/524288K available (9216K kernel code, 1356K rwdata, 6580K rodata, 1024K init, 410K bss, 23872K reserved, 0K cma-reserved, 0K highmem) SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 trace event string verifier disabled rcu: Preemptible hierarchical RCU implementation. rcu: RCU event tracing is enabled. rcu: RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1. Trampoline variant of Tasks RCU enabled. rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies. rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1 NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 Switching to timer-based delay loop, resolution 41ns sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns Console: colour dummy device 80x30 Calibrating delay loop (skipped), value calculated using timer frequency.. 48.00 BogoMIPS (lpj=96000) pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) CPU: Testing write buffer coherency: ok /cpus/cpu@0 missing clock-frequency property CPU0: thread -1, cpu 0, socket 0, mpidr 80000000 Setting up static identity map for 0x80100000 - 0x80100060 rcu: Hierarchical SRCU implementation. smp: Bringing up secondary CPUs ... smp: Brought up 1 node, 1 CPU SMP: Total of 1 processors activated (48.00 BogoMIPS). CPU: All CPU(s) started in SVC mode. devtmpfs: initialized Duplicate name in lcdif@021c8000, renamed to "display#1" VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5 clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns futex hash table entries: 256 (order: 2, 16384 bytes, linear) pinctrl core: initialized pinctrl subsystem NET: Registered PF_NETLINK/PF_ROUTE protocol family DMA: preallocated 4096 KiB pool for atomic coherent allocations thermal_sys: Registered thermal governor 'step_wise' cpuidle: using governor ladder cpuidle: using governor menu CPU identified as i.MX6ULL, silicon rev 1.1 vdd3p0: supplied by regulator-dummy cpu: supplied by regulator-dummy vddsoc: supplied by regulator-dummy failed to find ocotp node failed to find ocotp node No ATAGs? hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers. hw-breakpoint: maximum watchpoint size is 8 bytes. imx6ul-pinctrl 20e0000.iomuxc: Invalid fsl,pins or pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/imx6ul-evk/lcdifdatgrp imx6ul-pinctrl 20e0000.iomuxc: Invalid fsl,pins or pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/imx6ul-evk/pwm1grp imx6ul-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver imx6ul-pinctrl 2290000.iomuxc-snvs: initialized IMX pinctrl driver imx mu driver is registered. imx rpmsg driver is registered. SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb pca953x 0-0019: supply vcc not found, using dummy regulator pca953x 0-0019: using no AI i2c i2c-0: IMX I2C adapter registered pps_core: LinuxPPS API ver. 1 registered pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> MIPI CSI2 driver module loaded Bluetooth: Core ver 2.22 NET: Registered PF_BLUETOOTH protocol family Bluetooth: HCI device and connection manager initialized Bluetooth: HCI socket layer initialized Bluetooth: L2CAP socket layer initialized Bluetooth: SCO socket layer initialized clocksource: Switched to clocksource mxc_timer1 NET: Registered PF_INET protocol family IP idents hash table entries: 8192 (order: 4, 65536 bytes, linear) tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 6144 bytes, linear) Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear) TCP established hash table entries: 4096 (order: 2, 16384 bytes, linear) TCP bind hash table entries: 4096 (order: 3, 32768 bytes, linear) TCP: Hash tables configured (established 4096 bind 4096) UDP hash table entries: 256 (order: 1, 8192 bytes, linear) UDP-Lite hash table entries: 256 (order: 1, 8192 bytes, linear) NET: Registered PF_UNIX/PF_LOCAL protocol family Bus freq driver module loaded Initialise system trusted keyrings workingset: timestamp_bits=30 max_order=17 bucket_order=0 jffs2: version 2.2. (NAND) � 2001-2006 Red Hat, Inc. fuse: init (API version 7.34) Key type asymmetric registered Asymmetric key parser 'x509' registered Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250) io scheduler mq-deadline registered io scheduler kyber registered io scheduler bfq registered imx-weim 21b8000.weim: Driver registered. mxsfb 21c8000.lcdif: supply lcd not found, using dummy regulator sii902x bound to mxs-lcdif from 21c8000.lcdif Console: switching to colour frame buffer device 60x34 mxsfb 21c8000.lcdif: initialized 2018000.serial: ttymxc6 at MMIO 0x2018000 (irq = 26, base_baud = 5000000) is a IMX 2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 27, base_baud = 5000000) is a IMX printk: console [ttymxc0] enabled 21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 72, base_baud = 5000000) is a IMX 21ec000.serial: ttymxc2 at MMIO 0x21ec000 (irq = 73, base_baud = 5000000) is a IMX 21f0000.serial: ttymxc3 at MMIO 0x21f0000 (irq = 74, base_baud = 5000000) is a IMX 21f4000.serial: ttymxc4 at MMIO 0x21f4000 (irq = 75, base_baud = 5000000) is a IMX 21fc000.serial: ttymxc5 at MMIO 0x21fc000 (irq = 76, base_baud = 5000000) is a IMX 2288000.serial: ttymxc7 at MMIO 0x2288000 (irq = 77, base_baud = 5000000) is a IMX imx sema4 driver is registered. brd: module loaded loop: module loaded PPP generic driver version 2.4.2 PPP BSD Compression module registered ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver usbcore: registered new interface driver cdc_acm cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters usbcore: registered new interface driver usb-storage usbcore: registered new interface driver usb_ehset_test udc-core: couldn't find an available UDC - added [g_serial] to list of pending drivers input: 20cc000.snvs:snvs-powerkey as /devices/platform/soc/2000000.aips-bus/20cc000.snvs/20cc000.snvs:snvs-powerkey/input/input0 rtc-ds1307 0-0068: registered as rtc0 rtc-ds1307 0-0068: setting system clock to 2023-03-07T23:03:16 UTC (1678230196) i2c_dev: i2c /dev entries driver Bluetooth: HCI UART driver ver 2.3 Bluetooth: HCI UART protocol H4 registered Bluetooth: HCI UART protocol BCSP registered Bluetooth: HCI UART protocol LL registered Bluetooth: HCI UART protocol Three-wire (H5) registered Bluetooth: HCI UART protocol Marvell registered usbcore: registered new interface driver btusb sdhci: Secure Digital Host Controller Interface driver sdhci: Copyright(c) Pierre Ossman sdhci-pltfm: SDHCI platform and OF driver helper sdhci-esdhc-imx 2190000.usdhc: Got CD GPIO usbcore: registered new interface driver usbhid usbhid: USB HID core driver gnss: GNSS driver registered with major 246 NET: Registered PF_LLC protocol family xt_time: kernel timezone is -0000 NET: Registered PF_INET6 protocol family Segment Routing with IPv6 mmc1: SDHCI controller on 2194000.usdhc [2194000.usdhc] using ADMA In-situ OAM (IOAM) with IPv6 sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver mmc0: SDHCI controller on 2190000.usdhc [2190000.usdhc] using ADMA NET: Registered PF_PACKET protocol family Bluetooth: RFCOMM TTY layer initialized Bluetooth: RFCOMM socket layer initialized Bluetooth: RFCOMM ver 1.11 Bluetooth: BNEP (Ethernet Emulation) ver 1.3 Bluetooth: BNEP filters: protocol multicast Bluetooth: BNEP socket layer initialized Bluetooth: HIDP (Human Interface Emulation) ver 1.2 Bluetooth: HIDP socket layer initialized Registering SWP/SWPB emulation handler Loading compiled-in X.509 certificates mmc1: host does not support reading read-only switch, assuming write-enable mmc0: host does not support reading read-only switch, assuming write-enable mmc0: new high speed SDXC card at address 5048 mmc1: new high speed SDHC card at address 1388 mmcblk0: mmc0:5048 SD64G 58.1 GiB mmcblk1: mmc1:1388 USD00 29.5 GiB mmcblk1: p1 p2 mmcblk0: p1 ci_hdrc ci_hdrc.0: EHCI Host Controller ci_hdrc ci_hdrc.0: new USB bus registered, assigned bus number 1 ci_hdrc ci_hdrc.0: USB 2.0 started, EHCI 1.00 usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.15 usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb1: Product: EHCI Host Controller usb usb1: Manufacturer: Linux 5.15.71-00002-g9c3c24b92ece ehci_hcd usb usb1: SerialNumber: ci_hdrc.0 hub 1-0:1.0: USB hub found hub 1-0:1.0: 1 port detected ci_hdrc ci_hdrc.1: EHCI Host Controller ci_hdrc ci_hdrc.1: new USB bus registered, assigned bus number 2 ci_hdrc ci_hdrc.1: USB 2.0 started, EHCI 1.00 usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 5.15 usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 usb usb2: Product: EHCI Host Controller usb usb2: Manufacturer: Linux 5.15.71-00002-g9c3c24b92ece ehci_hcd usb usb2: SerialNumber: ci_hdrc.1 hub 2-0:1.0: USB hub found hub 2-0:1.0: 1 port detected psci_checker: Missing PSCI operations, aborting tests EXT4-fs (mmcblk1p2): recovery complete EXT4-fs (mmcblk1p2): mounted filesystem with ordered data mode. Opts: (null). Quota mode: disabled. VFS: Mounted root (ext4 filesystem) on device 179:10. devtmpfs: mounted Freeing unused kernel image (initmem) memory: 1024K Run /sbin/init as init process usb 2-1: new high-speed USB device number 2 using ci_hdrc usb 2-1: New USB device found, idVendor=1286, idProduct=2052, bcdDevice=40.00 usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 2-1: Product: Marvell Wireless Device usb 2-1: Manufacturer: Marvell usb 2-1: SerialNumber: 0000000000000000 systemd[1]: systemd 241 running in system mode. (+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid) systemd[1]: Detected architecture arm. Welcome to Debian GNU/Linux 10 (buster)! systemd[1]: Set hostname to <datalogger-rev2.0>. systemd[1]: File /lib/systemd/system/systemd-journald.service:12 configures an IP firewall (IPAddressDeny=any), but the local system does not support BPF/cgroup based firewalling. systemd[1]: Proceeding WITHOUT firewalling in effect! (This warning is only shown for the first loaded unit using IP firewalling.) random: systemd: uninitialized urandom read (16 bytes read) random: systemd: uninitialized urandom read (16 bytes read) systemd[1]: Created slice system-systemd\x2dfsck.slice. [ OK ] Created slice system-systemd\x2dfsck.slice. random: systemd: uninitialized urandom read (16 bytes read) systemd[1]: Started Forward Password Requests to Wall Directory Watch. [ OK ] Started Forward Password R�uests to Wall Directory Watch. systemd[1]: Created slice system-serial\x2dgetty.slice. [ OK ] Created slice system-serial\x2dgetty.slice. systemd[1]: Set up automount Arbitrary Executable File Formats File System Automount Point. [ OK ] Set up automount Arbitrary�s File System Automount Point. systemd[1]: Listening on Syslog Socket. [ OK ] Listening on Syslog Socket. [ OK ] Reached target Swap. [ OK ] Listening on udev Control Socket. [ OK ] Started Dispatch Password �ts to Console Directory Watch. [ OK ] Reached target Paths. [ OK ] Reached target Local Encrypted Volumes. [ OK ] Created slice system-getty.slice. [ OK ] Created slice User and Session Slice. [ OK ] Reached target Slices. [ OK ] Listening on initctl Compatibility Named Pipe. [ OK ] Reached target Remote File Systems. [ OK ] Listening on fsck to fsckd communication Socket. [ OK ] Listening on Journal Socket. Starting Load Kernel Modules... Starting Remount Root and Kernel File Systems... Starting Nameserver information manager... [ OK ] Listening on Journal Socket (/dev/log). Starting Journal Service... Mounting Kernel Debug File System... [ OK ] Listening on udev Kernel Socket. Starting udev Coldplug all Devices... [ OK ] Mounted Kernel Debug File System. [ OK ] Started Nameserver information manager. [FAILED] Failed to start Load Kernel Modules. See 'systemctl status systemd-modules-load.service' for details. random: systemd: uninitialized urandom read (16 bytes read) EXT4-fs (mmcblk1p2): re-mounted. Opts: (null). Quota mode: disabled. Starting Apply Kernel Variables... random: systemd: uninitialized urandom read (16 bytes read) Mounting Kernel Configuration File System... random: systemd: uninitialized urandom read (16 bytes read) Mounting FUSE Control File System... [ OK ] Started Remount Root and Kernel File Systems. [ OK ] Mounted Kernel Configuration File System. Starting Create System Users... Starting Load/Save Random Seed... [ OK ] Mounted FUSE Control File System. [ OK ] Started Apply Kernel Variables. random: systemd-random-: uninitialized urandom read (512 bytes read) systemd[1]: Started Load/Save Random Seed. [ OK ] Started Load/Save Random Seed. systemd[1]: Started Create System Users. [ OK ] Started Create System Users. random: systemd: uninitialized urandom read (16 bytes read) systemd[1]: Starting Create Static Device Nodes in /dev... Starting Create Static Device Nodes in /dev... systemd[1]: Started Journal Service. [ OK ] Started Journal Service. random: systemd-journal: uninitialized urandom read (16 bytes read) Starting Flush Journal to Persistent Storage... [ OK ] Started Create Static Device Nodes in /dev. systemd-journald[112]: Received request to flush runtime journal from PID 1 random: systemd: uninitialized urandom read (16 bytes read) Starting udev Kernel Device Manager... [ OK ] Reached target Local File Systems (Pre). [ OK ] Started Flush Journal to Persistent Storage. [ OK ] Started udev Kernel Device Manager. imx-sdma 20ec000.sdma: alloc bd from iram. imx-sdma 20ec000.sdma: firmware found. imx-sdma 20ec000.sdma: loaded firmware 3.3

Re: i.MX6ULL issue with kernel after loading SDMA module

ceggers — Thu, 09 Mar 2023 07:36:38 GMT

Hi,

I've checked you kernel log and cannot and cannot see anything suspicious. Did you link the SDMA driver directly into the kernel or is it loaded as a module?

For deeper investigation I suggest adding some printk messages in the probe() routine of the SDMA driver in order to find the location where the system breaks.

regards,
Christian

Re: i.MX6ULL issue with kernel after loading SDMA module

Rita_Wang — Mon, 13 Mar 2023 02:55:14 GMT

Please refer to following file in linux kernel source:

drivers/dma/dmatest.c

Documentation/dmaengine/dmatest.txt

i.MX Processorsのトピックi.MX6ULL issue with kernel after loading SDMA module

i.MX6ULL issue with kernel after loading SDMA module

Re: i.MX6ULL issue with kernel after loading SDMA module

Re: i.MX6ULL issue with kernel after loading SDMA module