Thread:Talk:R-Car/Boards/M3SK/Booting of kernel stops at 23.047503 mmc0: error -110 whilst initialising MMC card

Booting logs for mmcblk1p1
<
 * > setenv bootargs 'rw root=/dev/mmcblk1p1 rootfstype=ext4 rootwait'
 * * => ext2load mmc 0:1 0x48080000 /boot/Image
 * * 18522624 bytes read in 789 ms (22.4 MiB/s)
 * * => ext2load mmc 0:1 0x48000000 /boot/Image-r8a7796-m3ulcb.dtb
 * * 67069 bytes read in 17 ms (3.8 MiB/s)
 * * => booti 0x48080000 - 0x48000000
 * * ## Flattened Device Tree blob at 48000000
 * *   Booting using the fdt blob at 0x48000000
 * *   Using Device Tree in place at 0000000048000000, end 00000000480135fc
 * Starting kernel ...
 * [   0.000000] Booting Linux on physical CPU 0x0
 * [   0.000000] Linux version 4.14.35-yocto-standard (oe-user@oe-host) (gcc version 7.3.0 (GCC)) #1 SMP PREEMPT Sun Feb 17 20:28:45 CST 2019
 * [   0.000000] Boot CPU: AArch64 Processor [411fd073]
 * [   0.000000] Machine model: Renesas M3ULCB board based on r8a7796
 * [   0.000000] efi: Getting EFI parameters from FDT:
 * [   0.000000] efi: UEFI not found.
 * [   0.000000] Reserved memory: created CMA memory pool at 0x0000000057000000, size 400 MiB
 * [   0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
 * [   0.000000] Reserved memory: created CMA memory pool at 0x0000000070000000, size 256 MiB
 * [   0.000000] OF: reserved mem: initialized node linux,multimedia, compatible id shared-dma-pool
 * [   0.000000] NUMA: No NUMA configuration found
 * [   0.000000] NUMA: Faking a node at [mem 0x0000000000000000-0x000000063fffffff]
 * [   0.000000] NUMA: NODE_DATA [mem 0x63ff96600-0x63ff980ff]
 * [   0.000000] Zone ranges:
 * [   0.000000]   DMA      [mem 0x0000000048000000-0x00000000ffffffff]
 * [   0.000000]   Normal   [mem 0x0000000100000000-0x000000063fffffff]
 * [   0.000000] Movable zone start for each node
 * [   0.000000] Early memory node ranges
 * [   0.000000]   node   0: [mem 0x0000000048000000-0x0000000053ffffff]
 * [   0.000000]   node   0: [mem 0x0000000057000000-0x000000007fffffff]
 * [   0.000000]   node   0: [mem 0x0000000600000000-0x000000063fffffff]
 * [   0.000000] Initmem setup node 0 [mem 0x0000000048000000-0x000000063fffffff]
 * [   0.000000] psci: probing for conduit method from DT.
 * [   0.000000] psci: PSCIv1.0 detected in firmware.
 * [   0.000000] psci: Using standard PSCI v0.2 function IDs
 * [   0.000000] psci: Trusted OS resident on physical CPU 0x0
 * [   0.000000] psci: SMC Calling Convention v1.0
 * [   0.000000] percpu: Embedded 23 pages/cpu @ffff8005fff07000 s55448 r8192 d30568 u94208
 * [   0.000000] Detected PIPT I-cache on CPU0
 * [   0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 471744
 * [   0.000000] Policy zone: Normal
 * [   0.000000] Kernel command line: rw root=/dev/mmcblk1p1 rootfstype=ext4 rootwait
 * [   0.000000] PID hash table entries: 4096 (order: 3, 32768 bytes)
 * [   0.000000] software IO TLB [mem 0x4ffff000-0x53fff000] (64MB) mapped at [ffff80000ffff000-ffff800013ffefff]
 * [   0.000000] Memory: 1126832K/1916928K available (10684K kernel code, 1192K rwdata, 4992K rodata, 1152K init, 412K bss, 118352K reserved, 671744K cma-reserved)
 * [   0.000000] Virtual kernel memory layout:
 * [   0.000000]     modules : 0xffff000000000000 - 0xffff000008000000   (   128 MB)
 * [   0.000000]     vmalloc : 0xffff000008000000 - 0xffff7dffbfff0000   (129022 GB)
 * [   0.000000]       .text : 0xffff000008080000 - 0xffff000008af0000   ( 10688 KB)
 * [   0.000000]     .rodata : 0xffff000008af0000 - 0xffff000008fe0000   (  5056 KB)
 * [   0.000000]       .init : 0xffff000008fe0000 - 0xffff000009100000   (  1152 KB)
 * [   0.000000]       .data : 0xffff000009100000 - 0xffff00000922a200   (  1193 KB)
 * [   0.000000]        .bss : 0xffff00000922a200 - 0xffff0000092914e0   (   413 KB)
 * [   0.000000]     fixed   : 0xffff7dfffe7f9000 - 0xffff7dfffec00000   (  4124 KB)
 * [   0.000000]     PCI I/O : 0xffff7dfffee00000 - 0xffff7dffffe00000   (    16 MB)
 * [   0.000000]     vmemmap : 0xffff7e0000000000 - 0xffff800000000000   (  2048 GB maximum)
 * [   0.000000]               0xffff7e0000200000 - 0xffff7e0018000000   (   382 MB actual)
 * [   0.000000]     memory  : 0xffff800008000000 - 0xffff800600000000   ( 24448 MB)
 * [   0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=6, Nodes=1
 * [   0.000000] Preemptible hierarchical RCU implementation.
 * [   0.000000] 	RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=6.
 * [   0.000000] 	Tasks RCU enabled.
 * [   0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=6
 * [   0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
 * [   0.000000] GIC: Adjusting CPU interface base to 0x00000000f102f000
 * [   0.000000] GIC: Using split EOI/Deactivate mode
 * [   0.000000] arch_timer: cp15 timer(s) running at 8.33MHz (phys).
 * [   0.000000] clocksource: arch_sys_counter: mask: 0xffffffffffffff max_cycles: 0x1ec02923e, max_idle_ns: 440795202125 ns
 * [   0.000003] sched_clock: 56 bits at 8MHz, resolution 120ns, wraps every 2199023255496ns
 * [   0.000380] Console: colour dummy device 80x25
 * [   0.000600] console [tty0] enabled
 * [   0.000642] Calibrating delay loop (skipped), value calculated using timer frequency.. 16.66 BogoMIPS (lpj=33333)
 * [   0.000656] pid_max: default: 32768 minimum: 301
 * [   0.000700] Security Framework initialized
 * [   0.001480] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes)
 * [   0.001876] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes)
 * [   0.001914] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes)
 * [   0.001935] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes)
 * [   0.015945] ASID allocator initialised with 32768 entries
 * [   0.023935] Hierarchical SRCU implementation.
 * [   0.032480] Detected Renesas R-Car Gen3 r8a7796 ES1.0
 * [   0.033532] EFI services will not be available.
 * [   0.039968] smp: Bringing up secondary CPUs ...
 * [   0.068125] Detected PIPT I-cache on CPU1
 * [   0.068164] CPU1: Booted secondary processor [411fd073]
 * [   0.096047] psci: failed to boot CPU2 (-22)
 * [   0.096064] CPU2: failed to boot: -22
 * [   0.096069] CPU2: failed in unknown state : 0x0
 * [   0.124081] psci: failed to boot CPU3 (-22)
 * [   0.124090] CPU3: failed to boot: -22
 * [   0.124096] CPU3: failed in unknown state : 0x0
 * [   0.152112] psci: failed to boot CPU4 (-22)
 * [   0.152120] CPU4: failed to boot: -22
 * [   0.152125] CPU4: failed in unknown state : 0x0
 * [   0.180144] psci: failed to boot CPU5 (-22)
 * [   0.180153] CPU5: failed to boot: -22
 * [   0.180157] CPU5: failed in unknown state : 0x0
 * [   0.180193] smp: Brought up 1 node, 2 CPUs
 * [   0.180198] SMP: Total of 2 processors activated.
 * [   0.180206] CPU features: detected feature: 32-bit EL0 Support
 * [   0.180213] CPU features: detected feature: Kernel page table isolation (KPTI)
 * [   0.184451] CPU: All CPU(s) started at EL2
 * [   0.184466] alternatives: patching kernel code
 * [   0.185042] devtmpfs: initialized
 * [   0.189461] random: get_random_u32 called from bucket_table_alloc+0x108/0x260 with crng_init=0
 * [   0.189864] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
 * [   0.189928] futex hash table entries: 2048 (order: 6, 262144 bytes)
 * [   0.197962] pinctrl core: initialized pinctrl subsystem
 * [   0.198509] random: fast init done
 * [   0.199566] DMI not present or invalid.
 * [   0.199819] NET: Registered protocol family 16
 * [   0.201467] cpuidle: using governor menu
 * [   0.202418] vdso: 2 pages (1 code @ ffff000008af6000, 1 data @ ffff000009105000)
 * [   0.202440] hw-breakpoint: found 6 breakpoint and 4 watchpoint registers.
 * [   0.202982] DMA: preallocated 256 KiB pool for atomic allocations
 * [   0.203219] Serial: AMBA PL011 UART driver
 * [   0.206350] sh-pfc e6060000.pin-controller: r8a77960_pfc support registered
 * [   0.229018] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
 * [   0.229926] ACPI: Interpreter disabled.
 * [   0.231959] rcar-avs: use avs value: 0
 * [   0.232054] rcar-avs: /cpus/cpu@0 is running with: /opp_table0
 * [   0.232065] rcar-avs: /cpus/cpu@1 is running with: /opp_table0
 * [   0.232085] rcar-avs: /soc/gsx@fd000000 is running with: /gsx_opp_table0
 * [   0.233468] vgaarb: loaded
 * [   0.233715] SCSI subsystem initialized
 * [   0.234260] usbcore: registered new interface driver usbfs
 * [   0.234299] usbcore: registered new interface driver hub
 * [   0.234373] usbcore: registered new device driver usb
 * [   0.235314] i2c-sh_mobile e60b0000.i2c: I2C adapter 7, bus speed 400000 Hz
 * [   0.235628] media: Linux media interface: v0.10
 * [   0.235654] Linux video capture interface: v2.00
 * [   0.235722] pps_core: LinuxPPS API ver. 1 registered
 * [   0.235730] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti 
 * [   0.235747] PTP clock support registered
 * [   0.235889] EDAC MC: Ver: 3.0.0
 * [   0.236220] dmi: Firmware registration failed.
 * [   0.236986] Advanced Linux Sound Architecture Driver Initialized.
 * [   0.237455] clocksource: Switched to clocksource arch_sys_counter
 * [   0.237587] VFS: Disk quotas dquot_6.6.0
 * [   0.237629] VFS: Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
 * [   0.237738] pnp: PnP ACPI: disabled
 * [   0.242971] NET: Registered protocol family 2
 * [   0.243347] TCP established hash table entries: 16384 (order: 5, 131072 bytes)
 * [   0.243437] TCP bind hash table entries: 16384 (order: 6, 262144 bytes)
 * [   0.243576] TCP: Hash tables configured (established 16384 bind 16384)
 * [   0.243694] UDP hash table entries: 1024 (order: 3, 32768 bytes)
 * [   0.243725] UDP-Lite hash table entries: 1024 (order: 3, 32768 bytes)
 * [   0.243844] NET: Registered protocol family 1
 * [   0.244304] RPC: Registered named UNIX socket transport module.
 * [   0.244317] RPC: Registered udp transport module.
 * [   0.244323] RPC: Registered tcp transport module.
 * [   0.244329] RPC: Registered tcp NFSv4.1 backchannel transport module.
 * [   0.244920] hw perfevents: enabled with armv8_cortex_a57 PMU driver, 7 counters available
 * [   0.245056] hw perfevents: /soc/pmu_a53: failed to probe PMU!
 * [   0.245064] hw perfevents: /soc/pmu_a53: failed to register PMU devices!
 * [   0.245293] kvm [1]: 8-bit VMID
 * [   0.246688] kvm [1]: vgic interrupt IRQ1
 * [   0.246751] kvm [1]: Hyp mode initialized successfully
 * [   0.248633] audit: initializing netlink subsys (disabled)
 * [   0.249003] audit: type=2000 audit(0.243:1): state=initialized audit_enabled=0 res=1
 * [   0.249057] workingset: timestamp_bits=44 max_order=19 bucket_order=0
 * [   0.252384] squashfs: version 4.0 (2009/01/31) Phillip Lougher
 * [   0.257008] NFS: Registering the id_resolver key type
 * [   0.257039] Key type id_resolver registered
 * [   0.257046] Key type id_legacy registered
 * [   0.257057] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
 * [   0.257184] 9p: Installing v9fs 9p2000 file system support
 * [   0.258547] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244)
 * [   0.258564] io scheduler noop registered
 * [   0.258670] io scheduler cfq registered (default)
 * [   0.258678] io scheduler mq-deadline registered
 * [   0.258684] io scheduler kyber registered
 * [   0.263747] gpio_rcar e6050000.gpio: driving 16 GPIOs
 * [   0.264010] gpio_rcar e6051000.gpio: driving 29 GPIOs
 * [   0.264203] gpio_rcar e6052000.gpio: driving 15 GPIOs
 * [   0.264386] gpio_rcar e6053000.gpio: driving 16 GPIOs
 * [   0.264558] gpio_rcar e6054000.gpio: driving 18 GPIOs
 * [   0.264735] gpio_rcar e6055000.gpio: driving 26 GPIOs
 * [   0.264922] gpio_rcar e6055400.gpio: driving 32 GPIOs
 * [   0.265085] gpio_rcar e6055800.gpio: driving 4 GPIOs
 * [   0.285354] Serial: 8250/16550 driver, 4 ports, IRQ sharing enabled
 * [   0.287462] SuperH (H)SCI(F) driver initialized
 * [   0.287934] e6e88000.serial: ttySC0 at MMIO 0xe6e88000 (irq = 55, base_baud = 0) is a scif
 * [   1.269016] console [ttySC0] enabled
 * [   1.273320] msm_serial: driver initialized
 * [   1.278552] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
 * [   1.285180] [drm] No driver support for vblank timestamp query.
 * [   1.291672] rcar-dw-hdmi fead0000.hdmi: Detected HDMI TX controller v2.01a with HDCP (DWC HDMI 2.0 TX PHY)
 * [   1.301546] rcar-dw-hdmi fead0000.hdmi: registered DesignWare HDMI I2C bus driver
 * [   1.314683] loop: module loaded
 * [   1.321356] libphy: Fixed MDIO Bus: probed
 * [   1.325706] tun: Universal TUN/TAP device driver, 1.6
 * [   1.331827] e1000e: Intel(R) PRO/1000 Network Driver - 3.2.6-k
 * [   1.337682] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
 * [   1.343685] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.4.0-k
 * [   1.350667] igb: Copyright (c) 2007-2014 Intel Corporation.
 * [   1.356278] igbvf: Intel(R) Gigabit Virtual Function Network Driver - version 2.4.0-k
 * [   1.364123] igbvf: Copyright (c) 2009 - 2012 Intel Corporation.
 * [   1.370401] sky2: driver version 1.30
 * [   1.374880] ravb e6800000.ethernet: no valid MAC address supplied, using a random one
 * [   1.382797] libphy: ravb_mii: probed
 * [   1.387398] ravb e6800000.ethernet eth0: Base address at 0xe6800000, a2:a5:8c:e7:ea:39, IRQ 52.
 * [   1.396676] VFIO - User Level meta-driver version: 0.3
 * [   1.402953] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
 * [   1.409552] ehci-pci: EHCI PCI platform driver
 * [   1.414031] ehci-platform: EHCI generic platform driver
 * [   1.419656] ehci-platform ee0a0100.usb: EHCI Host Controller
 * [   1.425355] ehci-platform ee0a0100.usb: new USB bus registered, assigned bus number 1
 * [   1.433343] ehci-platform ee0a0100.usb: irq 143, io mem 0xee0a0100
 * [   1.453459] ehci-platform ee0a0100.usb: USB 2.0 started, EHCI 1.10
 * [   1.460019] hub 1-0:1.0: USB hub found
 * [   1.463792] hub 1-0:1.0: 1 port detected
 * [   1.467990] ehci-orion: EHCI orion driver
 * [   1.472184] ehci-exynos: EHCI EXYNOS driver
 * [   1.476460] ehci-msm: Qualcomm On-Chip EHCI Host Controller
 * [   1.482106] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
 * [   1.488302] ohci-pci: OHCI PCI platform driver
 * [   1.492792] ohci-platform: OHCI generic platform driver
 * [   1.498250] ohci-platform ee0a0000.usb: Generic Platform OHCI controller
 * [   1.504969] ohci-platform ee0a0000.usb: new USB bus registered, assigned bus number 2
 * [   1.512911] ohci-platform ee0a0000.usb: irq 143, io mem 0xee0a0000
 * [   1.607796] hub 2-0:1.0: USB hub found
 * [   1.611567] hub 2-0:1.0: 1 port detected
 * [   1.615720] ohci-exynos: OHCI EXYNOS driver
 * [   1.620449] usbcore: registered new interface driver usb-storage
 * [   1.628893] i2c /dev entries driver
 * [   1.639858] cs2000-cp 2-004f: revision - C1
 * [   1.644119] i2c-rcar e6510000.i2c: probed
 * [   1.652883] i2c-rcar e66d8000.i2c: probed
 * [   1.661887] rcar_gen3_thermal e6198000.thermal: is using pseudo fixed FUSE values
 * [   1.673891] rcar_gen3_thermal e6198000.thermal: TSC0: Loaded 1 trip points
 * [   1.685305] rcar_gen3_thermal e6198000.thermal: TSC1: Loaded 1 trip points
 * [   1.696430] rcar_gen3_thermal e6198000.thermal: TSC2: Loaded 3 trip points
 * [   1.705917] sdhci: Secure Digital Host Controller Interface driver
 * [   1.712118] sdhci: Copyright(c) Pierre Ossman
 * [   1.717067] renesas_sdhi_internal_dmac ee100000.sd: Got CD GPIO
 * [   1.785564] renesas_sdhi_internal_dmac ee140000.sd: mmc0 base at 0xee140000 max clock rate 200 MHz
 * [   1.794747] Synopsys Designware Multimedia Card Interface Driver
 * [   1.802388] sdhci-pltfm: SDHCI platform and OF driver helper
 * [   1.809354] ledtrig-cpu: registered to indicate activity on CPUs
 * [   1.816363] usbcore: registered new interface driver usbhid
 * [   1.821955] usbhid: USB HID core driver
 * [   1.826755] optee: probing for conduit method from DT.
 * [   1.832200] R-Car Rev.1.0.8
 * [   1.835161] optee: initialized driver
 * [   1.847911] rcar_sound ec500000.sound: probed
 * [   1.852597] NET: Registered protocol family 17
 * [   1.857108] 9pnet: Installing 9P2000 support
 * [   1.861429] Key type dns_resolver registered
 * [   1.866105] registered taskstats version 1
 * [   1.874164] thermal emergency: set temperature to 110 celsius
 * [   1.879972] thermal emergency: shutdown target cpus 1
 * [   1.885034] thermal emergency: freq scaled target cpus 0
 * [   1.890642] renesas_irqc e61c0000.interrupt-controller: driving 6 irqs
 * [   1.898657] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
 * [   1.905296] [drm] No driver support for vblank timestamp query.
 * [   1.911865] [drm] Cannot find any crtc or sizes
 * [   1.916834] [drm] Initialized rcar-du 1.0.0 20130110 for feb00000.display on minor 0
 * [   1.924595] [drm] Device feb00000.display probed
 * [   1.929614] [drm] Cannot find any crtc or sizes
 * [   1.934749] bd9571mwv 7-0030: Device: BD9571MWV rev. 1
 * [   1.945128] renesas_sdhi_internal_dmac ee100000.sd: Got CD GPIO
 * [   2.009660] renesas_sdhi_internal_dmac ee100000.sd: mmc1 base at 0xee100000 max clock rate 200 MHz
 * [   2.020021] asoc-simple-card sound: ak4613-hifi <-> ec500000.sound mapping ok
 * [   2.027189] asoc-simple-card sound: ASoC: no DMI vendor name!
 * [   2.035375] input: keyboard as /devices/platform/keyboard/input/input0
 * [   2.042210] hctosys: unable to open rtc device (rtc0)
 * [   2.047686] ALSA device list:
 * [   2.050666]   #0: rsnd-dai.0-ak4613-hifi
 * [   2.054889] Waiting for root device /dev/mmcblk1p1...
 * [   6.881468] renesas_sdhi_internal_dmac ee140000.sd: timeout waiting for hardware interrupt (CMD8)
 * [   6.890455] mmc1: new SDXC card at address 0007
 * [   6.895216] mmcblk1: mmc1:0007 SD128 116 GiB
 * [   6.912424] mmc0: error -110 whilst initialising MMC card
 * [   6.986573]  mmcblk1: p1
 * [  12.257461] renesas_sdhi_internal_dmac ee100000.sd: timeout waiting for hardware interrupt (CMD18)
 * [  12.257464] renesas_sdhi_internal_dmac ee140000.sd: timeout waiting for hardware interrupt (CMD8)
 * [  12.279527] mmc0: error -110 whilst initialising MMC card
 * [  12.297994] mmcblk1: error -110 transferring data, sector 2048, nr 8, cmd response 0x900, card status 0x0
 * [  17.633459] renesas_sdhi_internal_dmac ee100000.sd: timeout waiting for hardware interrupt (CMD18)
 * [  17.633461] renesas_sdhi_internal_dmac ee140000.sd: timeout waiting for hardware interrupt (CMD8)
 * [  17.655521] mmc0: error -110 whilst initialising MMC card
 * [  17.673984] mmcblk1: error -110 transferring data, sector 2048, nr 8, cmd response 0x900, card status 0x0
 * [  17.683557] mmcblk1: retrying using single block read
 * [  17.693686] mmcblk1: error -84 transferring data, sector 2048, nr 8, cmd response 0x900, card status 0x0
 * [  17.703172] print_req_error: I/O error, dev mmcblk1, sector 2048
 * [  17.714257] mmcblk1: error -84 transferring data, sector 2049, nr 7, cmd response 0x900, card status 0x0
 * [  17.723740] print_req_error: I/O error, dev mmcblk1, sector 2049
 * [  17.734824] mmcblk1: error -84 transferring data, sector 2050, nr 6, cmd response 0x900, card status 0x0
 * [  17.744307] print_req_error: I/O error, dev mmcblk1, sector 2050
 * [  17.755388] mmcblk1: error -84 transferring data, sector 2051, nr 5, cmd response 0x900, card status 0x0
 * [  17.764872] print_req_error: I/O error, dev mmcblk1, sector 2051
 * [  17.775952] mmcblk1: error -84 transferring data, sector 2052, nr 4, cmd response 0x900, card status 0x0
 * [  17.785435] print_req_error: I/O error, dev mmcblk1, sector 2052
 * [  17.796517] mmcblk1: error -84 transferring data, sector 2053, nr 3, cmd response 0x900, card status 0x0
 * [  17.806000] print_req_error: I/O error, dev mmcblk1, sector 2053
 * [  17.817085] mmcblk1: error -84 transferring data, sector 2054, nr 2, cmd response 0x900, card status 0x0
 * [  17.826569] print_req_error: I/O error, dev mmcblk1, sector 2054
 * [  17.837653] mmcblk1: error -84 transferring data, sector 2055, nr 1, cmd response 0x900, card status 0x0
 * [  17.847136] print_req_error: I/O error, dev mmcblk1, sector 2055
 * [  17.853152] EXT4-fs (mmcblk1p1): Can't read superblock on 2nd try
 * [  17.864473] mmcblk1: error -84 transferring data, sector 2050, nr 2, cmd response 0x900, card status 0x0
 * [  17.873961] print_req_error: I/O error, dev mmcblk1, sector 2050
 * [  17.885047] mmcblk1: error -84 transferring data, sector 2051, nr 1, cmd response 0x900, card status 0x0
 * [  17.894532] print_req_error: I/O error, dev mmcblk1, sector 2051
 * [  17.900547] EXT4-fs (mmcblk1p1): unable to read superblock
 * [  17.906059] List of all partitions:
 * [  17.909563] b300       121798656 mmcblk1
 * [  17.909565]  driver: mmcblk
 * [  17.916365]   b301       121797631 mmcblk1p1 00000000-01
 * [  17.916367]
 * [  17.923166] No filesystem could mount root, tried:
 * [  17.923168]  ext4
 * [  17.928055]
 * [  17.931469] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,1)
 * [  17.939906] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.14.35-yocto-standard #1
 * [  17.947212] Hardware name: Renesas M3ULCB board based on r8a7796 (DT)
 * [  17.953648] Call trace:
 * [  17.956101] [ ] dump_backtrace+0x0/0x3c8
 * [  17.961497] [ ] show_stack+0x14/0x20
 * [  17.966550] [ ] dump_stack+0x9c/0xbc
 * [  17.971600] [ ] panic+0x11c/0x28c
 * [  17.976391] [ ] mount_block_root+0x214/0x264
 * [  17.982132] [ ] mount_root+0x11c/0x134
 * [  17.987352] [ ] prepare_namespace+0x138/0x180
 * [  17.993181] [ ] kernel_init_freeable+0x208/0x22c
 * [  17.999271] [ ] kernel_init+0x10/0x100
 * [  18.004492] [ ] ret_from_fork+0x10/0x18
 * [  18.009805] SMP: stopping secondary CPUs
 * [  18.013726] Kernel Offset: disabled
 * [  18.017210] CPU features: 0x1802000
 * [  18.020693] Memory Limit: none
 * [  18.023748] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,1)
 * [  23.009455] renesas_sdhi_internal_dmac ee140000.sd: timeout waiting for hardware interrupt (CMD8)
 * [  23.047503] mmc0: error -110 whilst initialising MMC card
 * [  18.023748] ---[ end Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(179,1)
 * [  23.009455] renesas_sdhi_internal_dmac ee140000.sd: timeout waiting for hardware interrupt (CMD8)
 * [  23.047503] mmc0: error -110 whilst initialising MMC card