Other Parts Discussed in Thread: PCA9555, TPS65910
When the system starts up, it will have the following information：
U-Boot SPL 2018.01-g1272a9523a (Jul 31 2019 - 16:00:59) Timed out in wait_for_bb: status=1000 Timed out in wait_for_bb: status=1000 Trying to boot from MMC1 U-Boot 2018.01-g1272a9523a (Jul 31 2019 - 16:00:59 +0000) CPU : AM335X-GP rev 2.1 Model: EPC-R3220 A101-1 DRAM: 1 GiB NAND: 0 MiB MMC: OMAP SD/MMC: 0, OMAP SD/MMC: 1 SF: Detected w25q32bv with page size 256 Bytes, erase size 4 KiB, total 4 MiB *** Warning - bad CRC, using default environment Net: SF: Detected w25q32bv with page size 256 Bytes, erase size 4 KiB, total 4 MiB cpsw Hit any key to stop autoboot: 0 switch to partitions #0, OK mmc0 is current device SD/MMC found on device 0 ** Unable to read file boot.scr ** ** Unable to read file uEnv.txt ** switch to partitions #0, OK mmc0 is current device Scanning mmc 0:1... switch to partitions #0, OK mmc0 is current device SD/MMC found on device 0 4096512 bytes read in 388 ms (10.1 MiB/s) 40033 bytes read in 36 ms (1.1 MiB/s) ## Flattened Device Tree blob at 88000000 Booting using the fdt blob at 0x88000000 Loading Device Tree to 8fff3000, end 8ffffc60 ... OK Starting kernel ... [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 4.14.79-gbe5d9a5075 (oe-user@oe-host) (gcc version 7.2.1 20171011 (Linaro GCC 7.2-2017.11)) #1 PREEMPT Wed Jul 31 08:42:48 UT [ 0.000000] CPU: ARMv7 Processor [413fc082] revision 2 (ARMv7), cr=10c5387d [ 0.000000] CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache [ 0.000000] OF: fdt: Machine model: EPC-R3220 A101-1 [ 0.000000] Memory policy: Data cache writeback [ 0.000000] efi: Getting EFI parameters from FDT: [ 0.000000] efi: UEFI not found. [ 0.000000] cma: Reserved 48 MiB at 0xbd000000 [ 0.000000] CPU: All CPU(s) started in SVC mode. [ 0.000000] AM335X ES2.1 (neon) [ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 260416 [ 0.000000] Kernel command line: console=ttyO0,115200n8 root=PARTUUID=000254d6-02 rw rootfstype=ext4 rootwait [ 0.000000] PID hash table entries: 4096 (order: 2, 16384 bytes) [ 0.000000] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) [ 0.000000] Inode-cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Memory: 976284K/1048576K available (8192K kernel code, 326K rwdata, 2676K rodata, 1024K init, 277K bss, 23140K reserved, 49152K cma-reserve highmem) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB) [ 0.000000] vmalloc : 0xf0800000 - 0xff800000 ( 240 MB) [ 0.000000] lowmem : 0xc0000000 - 0xf0000000 ( 768 MB) [ 0.000000] pkmap : 0xbfe00000 - 0xc0000000 ( 2 MB) [ 0.000000] modules : 0xbf000000 - 0xbfe00000 ( 14 MB) [ 0.000000] .text : 0xc0008000 - 0xc0900000 (9184 kB) [ 0.000000] .init : 0xc0c00000 - 0xc0d00000 (1024 kB) [ 0.000000] .data : 0xc0d00000 - 0xc0d51b40 ( 327 kB) [ 0.000000] .bss : 0xc0d51b40 - 0xc0d972ac ( 278 kB) [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 [ 0.000000] Preemptible hierarchical RCU implementation. [ 0.000000] Tasks RCU enabled. [ 0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16 [ 0.000000] IRQ: Found an INTC at 0xfa200000 (revision 5.0) with 128 interrupts [ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz [ 0.000020] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns [ 0.000047] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns [ 0.000061] OMAP clocksource: timer1 at 24000000 Hz [ 0.000292] timer_probe: no matching timers found [ 0.000545] Console: colour dummy device 80x30 [ 0.000600] Calibrating delay loop... 597.60 BogoMIPS (lpj=2988032) [ 0.118755] pid_max: default: 32768 minimum: 301 [ 0.119007] Mount-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.119031] Mountpoint-cache hash table entries: 2048 (order: 1, 8192 bytes) [ 0.119993] CPU: Testing write buffer coherency: ok [ 0.120073] CPU0: Spectre v2: using BPIALL workaround [ 0.120902] Setting up static identity map for 0x80100000 - 0x80100060 [ 0.121099] Hierarchical SRCU implementation. [ 0.121550] EFI services will not be available. [ 0.123485] devtmpfs: initialized [ 0.134897] random: get_random_u32 called from bucket_table_alloc+0x8c/0x1ac with crng_init=0 [ 0.135469] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3 [ 0.135846] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 0.135873] futex hash table entries: 256 (order: -1, 3072 bytes) [ 0.140301] pinctrl core: initialized pinctrl subsystem [ 0.141179] DMI not present or invalid. [ 0.141688] NET: Registered protocol family 16 [ 0.144422] DMA: preallocated 256 KiB pool for atomic coherent allocations [ 0.163336] omap_hwmod: debugss: _wait_target_disable failed [ 0.217005] cpuidle: using governor ladder [ 0.217050] cpuidle: using governor menu [ 0.222937] OMAP GPIO hardware version 0.1 [ 0.236585] No ATAGs? [ 0.236608] hw-breakpoint: debug architecture 0x4 unsupported. [ 0.254738] edma 49000000.edma: TI EDMA DMA engine driver [ 0.256092] reg-fixed-voltage fixedregulator@2: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_wl12xx_gpio, deferri [ 0.259859] usbcore: registered new interface driver usbfs [ 0.259938] usbcore: registered new interface driver hub [ 0.260079] usbcore: registered new device driver usb [ 0.260416] omap_i2c 44e0b000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/pinmux_i2c0_pins, deferring probe [ 0.260496] omap_i2c 4802a000.i2c: could not find pctldev for node /ocp/l4_wkup@44c00000/scm@210000/pinmux@800/i2c1_pins, deferring probe [ 0.260656] media: Linux media interface: v0.10 [ 0.260718] Linux video capture interface: v2.00 [ 0.260852] pps_core: LinuxPPS API ver. 1 registered [ 0.260864] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it> [ 0.260893] PTP clock support registered [ 0.260938] EDAC MC: Ver: 3.0.0 [ 0.261491] dmi: Firmware registration failed. [ 0.262014] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400 [ 0.262439] Advanced Linux Sound Architecture Driver Initialized. [ 0.263116] Bluetooth: Core ver 2.22 [ 0.263188] NET: Registered protocol family 31 [ 0.263201] Bluetooth: HCI device and connection manager initialized [ 0.263222] Bluetooth: HCI socket layer initialized [ 0.263237] Bluetooth: L2CAP socket layer initialized [ 0.263291] Bluetooth: SCO socket layer initialized [ 0.264035] clocksource: Switched to clocksource timer1 [ 0.274929] NET: Registered protocol family 2 [ 0.275849] TCP established hash table entries: 8192 (order: 3, 32768 bytes) [ 0.275970] TCP bind hash table entries: 8192 (order: 3, 32768 bytes) [ 0.276080] TCP: Hash tables configured (established 8192 bind 8192) [ 0.276230] UDP hash table entries: 512 (order: 1, 8192 bytes) [ 0.276268] UDP-Lite hash table entries: 512 (order: 1, 8192 bytes) [ 0.276492] NET: Registered protocol family 1 [ 0.277044] RPC: Registered named UNIX socket transport module. [ 0.277063] RPC: Registered udp transport module. [ 0.277073] RPC: Registered tcp transport module. [ 0.277082] RPC: Registered tcp NFSv4.1 backchannel transport module. [ 0.278139] hw perfevents: no interrupt-affinity property for /pmu, guessing. [ 0.278278] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available [ 0.280112] workingset: timestamp_bits=14 max_order=18 bucket_order=4 [ 0.285990] squashfs: version 4.0 (2009/01/31) Phillip Lougher [ 0.287021] NFS: Registering the id_resolver key type [ 0.287074] Key type id_resolver registered [ 0.287085] Key type id_legacy registered [ 0.287143] ntfs: driver 2.1.32 [Flags: R/O]. [ 0.293896] bounce: pool size: 64 pages [ 0.294015] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 245) [ 0.294152] io scheduler noop registered [ 0.294163] io scheduler deadline registered [ 0.294462] io scheduler cfq registered (default) [ 0.294478] io scheduler mq-deadline registered [ 0.294489] io scheduler kyber registered [ 0.296100] pinctrl-single 44e10800.pinmux: 142 pins at pa f9e10800 size 568 [ 0.298771] pwm-backlight backlight: backlight supply power not found, using dummy regulator [ 0.363493] Serial: 8250/16550 driver, 10 ports, IRQ sharing disabled [ 0.367385] omap_uart 44e09000.serial: no wakeirq for uart0 [ 0.367646] 44e09000.serial: ttyO0 at MMIO 0x44e09000 (irq = 30, base_baud = 3000000) is a OMAP UART0 [ 1.093650] console [ttyO0] enabled [ 1.098041] omap_uart 481a6000.serial: no wakeirq for uart3 [ 1.104189] 481a6000.serial: ttyO3 at MMIO 0x481a6000 (irq = 31, base_baud = 3000000) is a OMAP UART3 [ 1.114499] omap_uart 481a8000.serial: no wakeirq for uart4 [ 1.120600] 481a8000.serial: ttyO4 at MMIO 0x481a8000 (irq = 32, base_baud = 3000000) is a OMAP UART4 [ 1.131832] omap_rng 48310000.rng: Random Number Generator ver. 20 [ 1.140181] ch7055_init [ 1.157105] brd: module loaded [ 1.168754] loop: module loaded [ 1.175460] m25p80 spi0.0: found w25q32, expected m25p80 [ 1.181069] m25p80 spi0.0: w25q32 (4096 Kbytes) [ 1.185972] 1 ofpart partitions found on MTD device spi0.0 [ 1.191740] Creating 1 MTD partitions on "spi0.0": [ 1.196814] 0x000000000000-0x000000400000 : "BootLoader" [ 1.205957] libphy: Fixed MDIO Bus: probed [ 1.284134] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000 [ 1.292202] davinci_mdio 4a101000.mdio: detected phy mask ffffff7c [ 1.301888] libphy: 4a101000.mdio: probed [ 1.306251] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver RTL8211F Gigabit Ethernet [ 1.316383] davinci_mdio 4a101000.mdio: phy[1]: device 4a101000.mdio:01, driver RTL8211F Gigabit Ethernet [ 1.326585] davinci_mdio 4a101000.mdio: phy[7]: device 4a101000.mdio:07, driver RTL8211F Gigabit Ethernet [ 1.337870] cpsw 4a100000.ethernet: Detected MACID = c4:00:ad:38:3e:a9 [ 1.344995] cpsw 4a100000.ethernet: initialized cpsw ale version 1.4 [ 1.351681] cpsw 4a100000.ethernet: ALE Table size 1024 [ 1.357259] cpsw 4a100000.ethernet: cpts: overflow check period 500 (jiffies) [ 1.365808] cpsw 4a100000.ethernet: cpsw: Detected MACID = c4:00:ad:38:3e:aa [ 1.374444] PPP generic driver version 2.4.2 [ 1.379410] usbcore: registered new interface driver usbserial [ 1.385656] usbcore: registered new interface driver option [ 1.391569] usbserial: USB Serial support registered for GSM modem (1-port) [ 1.399288] i2c /dev entries driver [ 1.403507] IR NEC protocol handler initialized [ 1.408468] IR RC5(x/sz) protocol handler initialized [ 1.413786] IR RC6 protocol handler initialized [ 1.418573] IR JVC protocol handler initialized [ 1.423337] IR Sony protocol handler initialized [ 1.428210] IR SANYO protocol handler initialized [ 1.433155] IR Sharp protocol handler initialized [ 1.438117] IR MCE Keyboard/mouse protocol handler initialized [ 1.444269] IR XMP protocol handler initialized [ 1.451103] cpuidle: enable-method property 'ti,am3352' found operations [ 1.458684] sdhci: Secure Digital Host Controller Interface driver [ 1.465217] sdhci: Copyright(c) Pierre Ossman [ 1.470588] omap_hsmmc 48060000.mmc: Got CD GPIO [ 1.478391] sdhci-pltfm: SDHCI platform and OF driver helper [ 1.485338] ledtrig-cpu: registered to indicate activity on CPUs [ 1.495898] NET: Registered protocol family 10 [ 1.502273] Segment Routing with IPv6 [ 1.506402] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver [ 1.513508] NET: Registered protocol family 17 [ 1.518493] Bluetooth: RFCOMM TTY layer initialized [ 1.523636] Bluetooth: RFCOMM socket layer initialized [ 1.529136] Bluetooth: RFCOMM ver 1.11 [ 1.533086] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 1.538769] Bluetooth: BNEP filters: protocol multicast [ 1.544294] Bluetooth: BNEP socket layer initialized [ 1.549832] Key type dns_resolver registered [ 1.554657] omap_voltage_late_init: Voltage driver support not added [ 3.604069] omap_i2c 44e0b000.i2c: controller timed out [ 3.609714] tps65910 0-002d: No interrupt support, no core IRQ [ 5.684062] omap_i2c 44e0b000.i2c: controller timed out [ 6.374035] random: fast init done [ 7.764055] omap_i2c 44e0b000.i2c: controller timed out [ 9.844053] omap_i2c 44e0b000.i2c: controller timed out [ 9.849554] tps65910 0-002d: Error in configuring external control EN1 [ 9.856441] tps65910 0-002d: Failed to initialise ext control config [ 9.863245] vrtc: supplied by vbat [ 11.924060] omap_i2c 44e0b000.i2c: controller timed out [ 14.004056] omap_i2c 44e0b000.i2c: controller timed out [ 14.034055] vrtc: failed to enable [ 14.037645] tps65910 0-002d: failed to register tps65910-pmic regulator [ 14.044670] tps65910-pmic: probe of tps65910-pmic failed with error -110 [ 16.084069] omap_i2c 44e0b000.i2c: controller timed out [ 16.114060] rtc-s35390a 0-0030: error resetting chip [ 16.119971] rtc-s35390a: probe of 0-0030 failed with error -5 [ 18.244062] omap_i2c 44e0b000.i2c: controller timed out [ 18.249562] adv-wdt-i2c 0-0029: adv_wdt_i2c_read: i2c transfer failed [ 18.256354] adv-wdt-i2c 0-0029: Advantech Watchdog Timer enabled. timeout=60s (nowayout=0), Ver.0 [ 18.266085] pca953x 0-0022: 0-0022 supply vcc not found, using dummy regulator [ 20.324059] omap_i2c 44e0b000.i2c: controller timed out [ 20.354058] pca953x 0-0022: failed reading register [ 20.359359] pca953x: probe of 0-0022 failed with error -110 [ 20.365513] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 50 kHz [ 20.372698] omap_i2c 4802a000.i2c: bus 1 rev0.11 at 50 kHz [ 20.379012] pwm-backlight backlight: backlight supply power not found, using dummy regulator [ 20.389745] omap_hsmmc 48060000.mmc: Got CD GPIO [ 20.399268] hctosys: unable to open rtc device (rtc0) [ 20.405366] lis3_reg: disabling [ 20.408684] vwl1271: disabling [ 20.411893] ALSA device list: [ 20.415127] No soundcards found. [ 20.419634] Waiting for root device PARTUUID=000254d6-02... [ 216.114092] random: crng init done
This phenomenon is probabilistic. I keep restarting the board, more than 500 times appeared.
Because PMIC is on this I2C bus, the system can not start.
The SDK version we used is: 05.03.00.07
Do you have any suggestions for reference?
