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AD5764 Read error

Hello, 

We are using AD5764 DAC, which is on spi interface

added the following dac device tree

vdac: fixedregulator0 {
    compatible = "regulator-fixed";
    regulator-name = "vdac";
    regulator-min-microvolt = <5000000>;
    regulator-max-microvolt = <5000000>;
    regulator-boot-on;
};

dac@0 {
    #address-cells = <1>;
    #size-cells = <1>;
    compatible = "adi,ad5764";
    reg = <0x0>;
    spi-max-frequency = <25000000>;
    vrefAB-supply = <&vdac>;
    vrefCD-supply = <&vdac>;
    status = "okay";
};

I'm able to see DAC device files,

root@CoreEL-Q4241:/sys/devices/platform/ffe000000.soc/ffe110000.spi/spi_master/spi0/spi0.0/iio:device0# ls
dev out_voltage0_calibscale out_voltage1_calibscale out_voltage2_calibscale out_voltage3_calibscale subsystem
name out_voltage0_raw out_voltage1_raw out_voltage2_raw out_voltage3_raw uevent
of_node out_voltage0_scale out_voltage1_scale out_voltage2_scale out_voltage3_scale

But when i try to read dac output i'm getting the following error,

root@Q4241:/sys/devices/platform/ffe000000.soc/ffe110000.spi/spi_master/spi0/spi0.0/iio:device0# cat out_voltage0_scale
cat: read error: Invalid argument

Thanks,

Balaji.G

  • Hello,

    Can you post the output of dmesg?

    Regards,
    Andrei

  • Hello  ,

    Thanks for the reply.

    please find the output of dmesg.

    root@Q4241:~# root@Q4241:~# dmesg
    [   12.548259] fsl,ifc-nand fff800000.nand: fsl_ifc_read_byte: beyond end of buffer
    [   12.554368] nand: Could not find valid JEDEC parameter page; aborting
    [   12.559506] nand: No NAND device found
    [   12.563134] nand: No NAND device found
    [   12.566022] fsl_espi ffe110000.spi: cs=0, init_csmode=0x118008
    [   12.570804] m25p80 spi0.0: unrecognized JEDEC id bytes: 00, 00, 1f
    [   12.575691] m25p80: probe of spi0.0 failed with error -2
    [   12.579707] fsl_espi ffe110000.spi: at 0x        (ptrval) (irq = 53)
    [   12.585784] libphy: Fixed MDIO Bus: probed
    [   12.590211] iommu: Adding device ffe488000.port to group 59
    [   12.594772] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.598661] iommu: Adding device ffe489000.port to group 61
    [   12.603201] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.607077] iommu: Adding device ffe48a000.port to group 62
    [   12.611602] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.615466] iommu: Adding device ffe48b000.port to group 63
    [   12.619992] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.623868] iommu: Adding device ffe48c000.port to group 64
    [   12.628392] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.632266] iommu: Adding device ffe48d000.port to group 65
    [   12.636789] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.640656] iommu: Adding device ffe490000.port to group 66
    [   12.645176] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.649036] iommu: Adding device ffe491000.port to group 67
    [   12.653559] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.669171] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.674070] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.678201] mdio_bus ffe5fd000: MDIO device at address 16 is missing.
    [   12.683806] mdio_bus ffe5fd000: MDIO device at address 17 is missing.
    [   12.689576] iommu: Adding device ffe588000.port to group 68
    [   12.694095] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.697973] iommu: Adding device ffe589000.port to group 69
    [   12.702496] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.706360] iommu: Adding device ffe58a000.port to group 70
    [   12.710873] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.714743] iommu: Adding device ffe58b000.port to group 71
    [   12.719262] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.723126] iommu: Adding device ffe58c000.port to group 72
    [   12.727647] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.731514] iommu: Adding device ffe58d000.port to group 73
    [   12.736028] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.739892] iommu: Adding device ffe590000.port to group 74
    [   12.744409] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.748272] iommu: Adding device ffe591000.port to group 75
    [   12.752788] libphy: Freescale XGMAC MDIO Bus: probed
    [   12.771215] fsl_dpaa_mac ffe4f0000.ethernet: FMan MEMAC
    [   12.775146] fsl_dpaa_mac ffe4f0000.ethernet: FMan MAC address: 00:50:c2:cd:fa:7f
    [   12.781630] fsl_dpaa_mac ffe5e8000.ethernet: FMan MEMAC
    [   12.785550] fsl_dpaa_mac ffe5e8000.ethernet: FMan MAC address: 00:50:c2:cd:fa:85
    [   12.791970] fsl_dpaa_mac ffe5ea000.ethernet: FMan MEMAC
    [   12.795897] fsl_dpaa_mac ffe5ea000.ethernet: FMan MAC address: 00:50:c2:cd:fa:86
    [   12.802320] fsl_dpaa_mac ffe5f0000.ethernet: FMan MEMAC
    [   12.806245] fsl_dpaa_mac ffe5f0000.ethernet: FMan MAC address: 00:50:c2:cd:fa:87
    [   12.812670] fsl_dpaa_mac ffe5f2000.ethernet: FMan MEMAC
    [   12.816596] fsl_dpaa_mac ffe5f2000.ethernet: FMan MAC address: 00:50:c2:cd:fa:88
    [   12.829065] fsl_dpaa_mac ffe4f0000.ethernet eth0: Probed interface eth0
    [   12.840565] fsl_dpaa_mac ffe5e8000.ethernet eth1: Probed interface eth1
    [   12.851964] fsl_dpaa_mac ffe5ea000.ethernet eth2: Probed interface eth2
    [   12.863690] fsl_dpaa_mac ffe5f0000.ethernet eth3: Probed interface eth3
    [   12.875645] fsl_dpaa_mac ffe5f2000.ethernet eth4: Probed interface eth4
    [   12.881779] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
    [   12.887198] ehci-pci: EHCI PCI platform driver
    [   12.890381] ehci-platform: EHCI generic platform driver
    [   12.894613] uhci_hcd: USB Universal Host Controller Interface driver
    [   12.900174] ehci-fsl: Freescale EHCI Host controller driver
    [   12.904556] fsl-ehci fsl-ehci.0: Freescale On-Chip EHCI Host Controller
    [   12.909937] fsl-ehci fsl-ehci.0: new USB bus registered, assigned bus number 1
    [   12.925780] fsl-ehci fsl-ehci.0: irq 44, io mem 0xffe210000
    [   12.945609] fsl-ehci fsl-ehci.0: USB 2.0 started, EHCI 1.00
    [   12.950017] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.17
    [   12.956987] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    [   12.962909] usb usb1: Product: Freescale On-Chip EHCI Host Controller
    [   12.968049] usb usb1: Manufacturer: Linux 4.17.3 ehci_hcd
    [   12.972145] usb usb1: SerialNumber: fsl-ehci.0
    [   12.975485] hub 1-0:1.0: USB hub found
    [   12.977972] hub 1-0:1.0: 1 port detected
    [   12.980759] fsl-ehci fsl-ehci.1: Freescale On-Chip EHCI Host Controller
    [   12.986147] fsl-ehci fsl-ehci.1: new USB bus registered, assigned bus number 2
    [   13.001975] fsl-ehci fsl-ehci.1: irq 45, io mem 0xffe211000
    [   13.021605] fsl-ehci fsl-ehci.1: USB 2.0 started, EHCI 1.00
    [   13.026000] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.17
    [   13.032971] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    [   13.038894] usb usb2: Product: Freescale On-Chip EHCI Host Controller
    [   13.044033] usb usb2: Manufacturer: Linux 4.17.3 ehci_hcd
    [   13.048128] usb usb2: SerialNumber: fsl-ehci.1
    [   13.051435] hub 2-0:1.0: USB hub found
    [   13.053902] hub 2-0:1.0: 1 port detected
    [   13.056725] usbcore: registered new interface driver cdc_acm
    [   13.061085] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters
    [   13.067842] usbcore: registered new interface driver usb-storage
    [   13.072890] vhci_hcd: vhci_hcd_probe:1299: name vhci_hcd id 0
    [   13.072896] vhci_hcd vhci_hcd.0: USB/IP Virtual Host Controller
    [   13.077578] vhci_hcd vhci_hcd.0: new USB bus registered, assigned bus number 3
    [   13.083505] vhci_hcd: vhci_start:1131: enter vhci_start
    [   13.083521] vhci_hcd: vhci_start:1173: created sysfs vhci_hcd.0
    [   13.088254] usb usb3: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.17
    [   13.095222] usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    [   13.101144] usb usb3: Product: USB/IP Virtual Host Controller
    [   13.105589] usb usb3: Manufacturer: Linux 4.17.3 vhci_hcd
    [   13.109684] usb usb3: SerialNumber: vhci_hcd.0
    [   13.112984] hub 3-0:1.0: USB hub found
    [   13.115440] vhci_hcd: vhci_hub_control:335: typeReq a006 wValue 2900 wIndex 0
    [   13.115442] vhci_hcd: vhci_hub_control:390:  GetHubDescriptor
    [   13.115443] vhci_hcd: vhci_hub_control:609: port -1
    [   13.115445] vhci_hcd: vhci_hub_control:617:  bye
    [   13.115511] hub 3-0:1.0: 8 ports detected
    [   13.118237] vhci_hcd: vhci_hub_control:335: typeReq a000 wValue 0 wIndex 0
    [   13.118239] vhci_hcd: vhci_hub_control:413:  GetHubStatus
    [   13.118240] vhci_hcd: vhci_hub_control:609: port -1
    [   13.118241] vhci_hcd: vhci_hub_control:617:  bye
    [   13.118330] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 1
    [   13.118332] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.118333] vhci_hcd: vhci_hub_control:609: port 0
    [   13.118335] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000100
    [   13.118337] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.118339] vhci_hcd: dump_port_status_diff:150: 
    [   13.118340] vhci_hcd: vhci_hub_control:617:  bye
    [   13.118358] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 2
    [   13.118360] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.118362] vhci_hcd: vhci_hub_control:609: port 1
    [   13.118363] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000100
    [   13.118365] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.118366] vhci_hcd: dump_port_status_diff:150: 
    [   13.118367] vhci_hcd: vhci_hub_control:617:  bye
    [   13.118387] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 3
    [   13.118388] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.118390] vhci_hcd: vhci_hub_control:609: port 2
    [   13.118392] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000100
    [   13.118393] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.118394] vhci_hcd: dump_port_status_diff:150: 
    [   13.118396] vhci_hcd: vhci_hub_control:617:  bye
    [   13.118414] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 4
    [   13.118416] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.118418] vhci_hcd: vhci_hub_control:609: port 3
    [   13.118419] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000100
    [   13.118421] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.118422] vhci_hcd: dump_port_status_diff:150: 
    [   13.118423] vhci_hcd: vhci_hub_control:617:  bye
    [   13.118442] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 5
    [   13.118444] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.118445] vhci_hcd: vhci_hub_control:609: port 4
    [   13.118447] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000100
    [   13.118449] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.118451] vhci_hcd: dump_port_status_diff:150: 
    [   13.118452] vhci_hcd: vhci_hub_control:617:  bye
    [   13.118470] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 6
    [   13.118472] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.118474] vhci_hcd: vhci_hub_control:609: port 5
    [   13.118475] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000100
    [   13.118477] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.118479] vhci_hcd: dump_port_status_diff:150: 
    [   13.118480] vhci_hcd: vhci_hub_control:617:  bye
    [   13.118499] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 7
    [   13.118500] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.118502] vhci_hcd: vhci_hub_control:609: port 6
    [   13.118503] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000100
    [   13.118505] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.118506] vhci_hcd: dump_port_status_diff:150: 
    [   13.118508] vhci_hcd: vhci_hub_control:617:  bye
    [   13.118526] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 8
    [   13.118528] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.118529] vhci_hcd: vhci_hub_control:609: port 7
    [   13.118531] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000100
    [   13.118533] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.118534] vhci_hcd: dump_port_status_diff:150: 
    [   13.118535] vhci_hcd: vhci_hub_control:617:  bye
    [   13.118624] vhci_hcd vhci_hcd.0: USB/IP Virtual Host Controller
    [   13.123306] vhci_hcd vhci_hcd.0: new USB bus registered, assigned bus number 4
    [   13.129231] vhci_hcd: vhci_start:1131: enter vhci_start
    [   13.129255] vhci_hcd: vhci_hub_control:335: typeReq 8006 wValue f00 wIndex 0
    [   13.129256] vhci_hcd: vhci_hub_control:609: port -1
    [   13.129258] vhci_hcd: vhci_hub_control:617:  bye
    [   13.129279] vhci_hcd: vhci_hub_control:335: typeReq 8006 wValue f00 wIndex 0
    [   13.129281] vhci_hcd: vhci_hub_control:609: port -1
    [   13.129282] vhci_hcd: vhci_hub_control:617:  bye
    [   13.129299] usb usb4: We don't know the algorithms for LPM for this host, disabling LPM.
    [   13.136199] usb usb4: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.17
    [   13.143168] usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
    [   13.149090] usb usb4: Product: USB/IP Virtual Host Controller
    [   13.153534] usb usb4: Manufacturer: Linux 4.17.3 vhci_hcd
    [   13.157631] usb usb4: SerialNumber: vhci_hcd.0
    [   13.160920] hub 4-0:1.0: USB hub found
    [   13.163367] vhci_hcd: vhci_hub_control:335: typeReq a006 wValue 2a00 wIndex 0
    [   13.163369] vhci_hcd: vhci_hub_control:390:  GetHubDescriptor
    [   13.163371] vhci_hcd: vhci_hub_control:609: port -1
    [   13.163372] vhci_hcd: vhci_hub_control:617:  bye
    [   13.163391] hub 4-0:1.0: 8 ports detected
    [   13.166118] vhci_hcd: vhci_hub_control:335: typeReq a000 wValue 0 wIndex 0
    [   13.166119] vhci_hcd: vhci_hub_control:413:  GetHubStatus
    [   13.166121] vhci_hcd: vhci_hub_control:609: port -1
    [   13.166122] vhci_hcd: vhci_hub_control:617:  bye
    [   13.166242] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 1
    [   13.166244] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.166245] vhci_hcd: vhci_hub_control:609: port 0
    [   13.166247] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000200
    [   13.166248] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.166250] vhci_hcd: dump_port_status_diff:150: 
    [   13.166251] vhci_hcd: vhci_hub_control:617:  bye
    [   13.166268] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 2
    [   13.166270] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.166271] vhci_hcd: vhci_hub_control:609: port 1
    [   13.166273] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000200
    [   13.166274] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.166275] vhci_hcd: dump_port_status_diff:150: 
    [   13.166277] vhci_hcd: vhci_hub_control:617:  bye
    [   13.166294] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 3
    [   13.166296] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.166297] vhci_hcd: vhci_hub_control:609: port 2
    [   13.166299] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000200
    [   13.166300] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.166302] vhci_hcd: dump_port_status_diff:150: 
    [   13.166303] vhci_hcd: vhci_hub_control:617:  bye
    [   13.166319] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 4
    [   13.166321] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.166322] vhci_hcd: vhci_hub_control:609: port 3
    [   13.166324] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000200
    [   13.166325] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.166326] vhci_hcd: dump_port_status_diff:150: 
    [   13.166327] vhci_hcd: vhci_hub_control:617:  bye
    [   13.166345] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 5
    [   13.166346] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.166348] vhci_hcd: vhci_hub_control:609: port 4
    [   13.166349] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000200
    [   13.166351] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.166352] vhci_hcd: dump_port_status_diff:150: 
    [   13.166353] vhci_hcd: vhci_hub_control:617:  bye
    [   13.166369] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 6
    [   13.166371] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.166372] vhci_hcd: vhci_hub_control:609: port 5
    [   13.166374] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000200
    [   13.166376] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.166377] vhci_hcd: dump_port_status_diff:150: 
    [   13.166378] vhci_hcd: vhci_hub_control:617:  bye
    [   13.166395] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 7
    [   13.166397] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.166399] vhci_hcd: vhci_hub_control:609: port 6
    [   13.166400] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000200
    [   13.166402] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.166403] vhci_hcd: dump_port_status_diff:150: 
    [   13.166404] vhci_hcd: vhci_hub_control:617:  bye
    [   13.166420] vhci_hcd: vhci_hub_control:335: typeReq 2303 wValue 8 wIndex 8
    [   13.166422] vhci_hcd: vhci_hub_control:523:  SetPortFeature: USB_PORT_FEAT_POWER
    [   13.166423] vhci_hcd: vhci_hub_control:609: port 7
    [   13.166425] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000000 -> 00000200
    [   13.166427] vhci_hcd: dump_port_status_diff:142:  +POWER
    [   13.166428] vhci_hcd: dump_port_status_diff:150: 
    [   13.166429] vhci_hcd: vhci_hub_control:617:  bye
    [   13.166508] vhci_hcd: vhci_hcd_probe:1336: bye
    [   13.166555] usbcore: registered new device driver usbip-host
    [   13.171545] i2c /dev entries driver
    [   13.174153] mpc-i2c ffe118100.i2c: timeout 1000000 us
    [   13.183845] rtc-pcf8563 0-0051: rtc core: registered rtc-pcf8563 as rtc0
    [   13.190159] mpc-i2c ffe118000.i2c: timeout 1000000 us
    [   13.194046] mpc-i2c ffe119000.i2c: timeout 1000000 us
    [   13.197925] mpc-i2c ffe119100.i2c: timeout 1000000 us
    [   13.202038] Freescale(R) MPC85xx EDAC driver, (C) 2006 Montavista Software
    [   13.208570] EDAC MC0: Giving out device to module fsl_ddr_edac controller fsl_mc_err: DEV fsl_mc_err (INTERRUPT)
    [   13.217470] fsl_ddr_edac acquired irq 490 for MC
    [   13.220783] fsl_ddr_edac MC err registered
    [   13.221606] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 1
    [   13.223570] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 1
    [   13.223573] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 1 0
    [   13.223574] vhci_hcd: vhci_hub_control:609: port 0
    [   13.223576] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000100 -> 00000100
    [   13.223578] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.223579] vhci_hcd: dump_port_status_diff:150: 
    [   13.223580] vhci_hcd: vhci_hub_control:617:  bye
    [   13.223601] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 2
    [   13.223603] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 2
    [   13.223605] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 1 0
    [   13.223606] vhci_hcd: vhci_hub_control:609: port 1
    [   13.223608] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000100 -> 00000100
    [   13.223610] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.223611] vhci_hcd: dump_port_status_diff:150: 
    [   13.223613] vhci_hcd: vhci_hub_control:617:  bye
    [   13.223628] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 3
    [   13.223630] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 3
    [   13.223631] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 1 0
    [   13.223633] vhci_hcd: vhci_hub_control:609: port 2
    [   13.223635] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000100 -> 00000100
    [   13.223636] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.223638] vhci_hcd: dump_port_status_diff:150: 
    [   13.223639] vhci_hcd: vhci_hub_control:617:  bye
    [   13.223659] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 4
    [   13.223661] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 4
    [   13.223662] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 1 0
    [   13.223664] vhci_hcd: vhci_hub_control:609: port 3
    [   13.223665] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000100 -> 00000100
    [   13.223667] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.223668] vhci_hcd: dump_port_status_diff:150: 
    [   13.223670] vhci_hcd: vhci_hub_control:617:  bye
    [   13.223686] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 5
    [   13.223688] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 5
    [   13.223690] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 1 0
    [   13.223691] vhci_hcd: vhci_hub_control:609: port 4
    [   13.223693] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000100 -> 00000100
    [   13.223695] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.223696] vhci_hcd: dump_port_status_diff:150: 
    [   13.223697] vhci_hcd: vhci_hub_control:617:  bye
    [   13.223715] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 6
    [   13.223717] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 6
    [   13.223719] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 1 0
    [   13.223720] vhci_hcd: vhci_hub_control:609: port 5
    [   13.223722] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000100 -> 00000100
    [   13.223725] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.223727] vhci_hcd: dump_port_status_diff:150: 
    [   13.223729] vhci_hcd: vhci_hub_control:617:  bye
    [   13.223745] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 7
    [   13.223747] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 7
    [   13.223749] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 1 0
    [   13.223750] vhci_hcd: vhci_hub_control:609: port 6
    [   13.223752] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000100 -> 00000100
    [   13.223754] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.223756] EDAC MC1: Giving out device to module fsl_ddr_edac controller fsl_mc_err: DEV fsl_mc_err (INTERRUPT)
    [   13.223776] fsl_ddr_edac acquired irq 489 for MC
    [   13.232628] vhci_hcd: dump_port_status_diff:150: 
    [   13.232629] vhci_hcd: vhci_hub_control:617:  bye
    [   13.232652] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 8
    [   13.235947] fsl_ddr_edac MC err registered
    [   13.235949] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 8
    [   13.235950] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 1 0
    [   13.238734] vhci_hcd: vhci_hub_control:609: port 7
    [   13.238736] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000100 -> 00000100
    [   13.238738] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.238740] vhci_hcd: dump_port_status_diff:150: 
    [   13.238741] vhci_hcd: vhci_hub_control:617:  bye
    [   13.238900] EDAC MC2: Giving out device to module fsl_ddr_edac controller fsl_mc_err: DEV fsl_mc_err (INTERRUPT)
    [   13.247798] fsl_ddr_edac acquired irq 488 for MC
    [   13.251111] fsl_ddr_edac MC err registered
    [   13.255876] EDAC PCI0: Giving out device to module MPC85xx_edac controller mpc85xx_pci_err: DEV mpc85xx-pci-edac.0.auto (INTERRUPT)
    [   13.266418] MPC85xx_edac acquired irq 20 for PCI Err
    [   13.270083] MPC85xx_edac PCI err registered
    [   13.273001] EDAC PCI1: Giving out device to module MPC85xx_edac controller mpc85xx_pci_err: DEV mpc85xx-pci-edac.1.auto (INTERRUPT)
    [   13.283542] MPC85xx_edac acquired irq 22 for PCI Err
    [   13.287204] MPC85xx_edac PCI err registered
    [   13.290557] sdhci: Secure Digital Host Controller Interface driver
    [   13.295437] sdhci: Copyright(c) Pierre Ossman
    [   13.298490] sdhci-pltfm: SDHCI platform and OF driver helper
    [   13.305081] Freescale hypervisor management driver
    [   13.308575] fsl-hv: no hypervisor found
    [   13.311251] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 1
    [   13.311253] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 1
    [   13.311256] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 2 0
    [   13.311257] vhci_hcd: vhci_hub_control:609: port 0
    [   13.311259] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000200 -> 00000200
    [   13.311261] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.311263] vhci_hcd: dump_port_status_diff:150: 
    [   13.311264] vhci_hcd: vhci_hub_control:617:  bye
    [   13.311290] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 2
    [   13.311293] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 2
    [   13.311294] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 2 0
    [   13.311296] vhci_hcd: vhci_hub_control:609: port 1
    [   13.311299] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000200 -> 00000200
    [   13.311302] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.311303] vhci_hcd: dump_port_status_diff:150: 
    [   13.311304] vhci_hcd: vhci_hub_control:617:  bye
    [   13.311319] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 3
    [   13.311321] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 3
    [   13.311324] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 2 0
    [   13.311326] vhci_hcd: vhci_hub_control:609: port 2
    [   13.311328] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000200 -> 00000200
    [   13.311330] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.311331] vhci_hcd: dump_port_status_diff:150: 
    [   13.311332] vhci_hcd: vhci_hub_control:617:  bye
    [   13.311350] IDT PCI-E Non-Transparent Bridge Driver 2.0
    [   13.311352] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 4
    [   13.311354] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 4
    [   13.313602] usb 1-1: new full-speed USB device number 2 using fsl-ehci
    [   13.315984] ipip: IPv4 and MPLS over IPv4 tunneling driver
    [   13.320488] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 2 0
    [   13.320489] vhci_hcd: vhci_hub_control:609: port 3
    [   13.320491] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000200 -> 00000200
    [   13.320492] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.320494] vhci_hcd: dump_port_status_diff:150: 
    [   13.320495] vhci_hcd: vhci_hub_control:617:  bye
    [   13.320530] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 5
    [   13.324683] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 5
    [   13.324685] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 2 0
    [   13.324686] vhci_hcd: vhci_hub_control:609: port 4
    [   13.324688] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000200 -> 00000200
    [   13.324690] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.324691] vhci_hcd: dump_port_status_diff:150: 
    [   13.324692] vhci_hcd: vhci_hub_control:617:  bye
    [   13.324709] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 6
    [   13.324711] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 6
    [   13.324712] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 2 0
    [   13.324714] vhci_hcd: vhci_hub_control:609: port 5
    [   13.324716] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000200 -> 00000200
    [   13.324717] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.324719] vhci_hcd: dump_port_status_diff:150: 
    [   13.324720] vhci_hcd: vhci_hub_control:617:  bye
    [   13.324736] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 7
    [   13.324738] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 7
    [   13.324739] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 2 0
    [   13.324741] vhci_hcd: vhci_hub_control:609: port 6
    [   13.324742] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000200 -> 00000200
    [   13.324744] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.324745] vhci_hcd: dump_port_status_diff:150: 
    [   13.324746] vhci_hcd: vhci_hub_control:617:  bye
    [   13.324762] vhci_hcd: vhci_hub_control:335: typeReq a300 wValue 0 wIndex 8
    [   13.324764] vhci_hcd: vhci_hub_control:417:  GetPortStatus port 8
    [   13.324766] vhci_hcd: vhci_hub_control:472:  GetPortStatus bye 2 0
    [   13.324767] vhci_hcd: vhci_hub_control:609: port 7
    [   13.324769] vhci_hcd: dump_port_status_diff:128: status prev -> new: 00000200 -> 00000200
    [   13.324771] vhci_hcd: dump_port_status_diff:142:   POWER
    [   13.324772] vhci_hcd: dump_port_status_diff:150: 
    [   13.324773] vhci_hcd: vhci_hub_control:617:  bye
    [   13.324931] Initializing XFRM netlink socket
    [   13.327979] NET: Registered protocol family 10
    [   13.331783] Segment Routing with IPv6
    [   13.334175] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
    [   13.339029] NET: Registered protocol family 17
    [   13.342175] NET: Registered protocol family 15
    [   13.345407] NET: Registered protocol family 33
    [   13.348548] Key type rxrpc registered
    [   13.350905] Key type rxrpc_s registered
    [   13.353439] 8021q: 802.1Q VLAN Support v1.8
    [   13.356334] Key type dns_resolver registered
    [   13.359308] drmem: No dynamic reconfiguration memory found
    [   13.365859] rtc-pcf8563 0-0051: setting system clock to 2018-06-14 13:37:06 UTC (1528983426)
    [   13.373787] ALSA device list:
    [   13.375443]   No soundcards found.
    [   13.377702] RAMDISK: gzip image found at block 0
    [   13.472912] usb 1-1: New USB device found, idVendor=0451, idProduct=2046, bcdDevice= 1.25
    [   13.479808] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
    [   13.486954] hub 1-1:1.0: USB hub found
    [   13.489901] hub 1-1:1.0: 4 ports detected
    [   14.011951] EXT4-fs (ram0): mounted filesystem without journal. Opts: (null)
    [   14.017723] VFS: Mounted root (ext4 filesystem) readonly on device 1:0.
    [   14.023297] devtmpfs: mounted
    [   14.025109] Freeing unused kernel memory: 532K
    [   14.028253] This architecture does not have kernel memory protection.
    [   14.178467] udevd[2141]: starting version 182
    [   14.241690] fsl_dpaa_mac ffe4f0000.ethernet eth_tg: renamed from eth0
    [   14.342003] fsl_dpaa_mac ffe5e8000.ethernet eth0: renamed from eth1
    [   14.342031] udevd[2147]: renamed network interface eth0 to eth_tg
    [   14.385894] fsl_dpaa_mac ffe5ea000.ethernet eth1: renamed from eth2
    [   14.385935] udevd[2146]: renamed network interface eth1 to eth0
    [   14.417806] fsl_dpaa_mac ffe5f2000.ethernet eth2: renamed from eth4
    [   14.417817] udevd[2149]: renamed network interface eth2 to eth1
    [   14.453804] fsl_dpaa_mac ffe5f0000.ethernet rename5: renamed from eth3
    [   14.453847] udevd[2151]: renamed network interface eth4 to eth2
    [   14.485820] udevd[2150]: renamed network interface eth3 to rename5
    [   14.540795] fsl_dpaa_mac ffe5f0000.ethernet eth4: renamed from rename5
    [   14.561702] udevd[2150]: renamed network interface rename5 to eth4
    [   14.596491] EXT4-fs (ram0): re-mounted. Opts: (null)
    [   14.637658] random: dd: uninitialized urandom read (512 bytes read)
    [   19.099155] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
    [   23.278050] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
    [   24.245964] random: fast init done
    [   31.489220] random: crng init done
    root@Q4241:~# 

    Regards,

    Balaji.G