Re: [meta-ti] beagle bone black - scarthgap

[Denys Dmytriyenko <denis@denix.org>]

1. U-boot and SPL seem to be old from Dunfell

2. Check your env:

> append: root=PARTUUID= rootwait rw earlycon console=ttyO0,115200n8,115200
...
> [    3.961253] VFS: PARTUUID= is invalid.
> [    3.961253] Expected PARTUUID=<valid-uuid-id>[/PARTNROFF=%d]
> [    3.970800] Disabling rootwait; root= is invalid.
> [    3.977324] /dev/root: Can't open blockdev
> [    3.981716] VFS: Cannot open root device "PARTUUID=" or
> unknown-block(0,0): error -6
> [    3.989649] Please append a correct "root=" boot option; here are the

-- 
Denys


On Tue, May 14, 2024 at 01:24:37PM -0700, Joel Winarske wrote:
> What's the status of bbb on scarthgap?
> 
> Three weeks or so ago it would boot, only SGX driver was not loading.
> 
> Today I get a kernel panic.  Last week Scott Murray was saying to set
> kernel preference to 6.1, which appears to be the default now.
> 
> I would appreciate any assistance with this.
> 
> 
> U-Boot SPL 2019.04-00002-g31a8ae0206 (May 13 2020 - 09:26:17 -0500)
> Trying to boot from MMC2
> Loading Environment from EXT4...
> ** Unable to use mmc 0:1 for loading the env **
> 
> 
> U-Boot 2019.04-00002-g31a8ae0206 (May 13 2020 - 09:26:17 -0500), Build:
> jenkins-github_Bootloader-Builder-139
> 
> CPU  : AM335X-GP rev 2.1
> I2C:   ready
> DRAM:  512 MiB
> No match for driver 'omap_hsmmc'
> No match for driver 'omap_hsmmc'
> Some drivers were not found
> Reset Source: Power-on reset has occurred.
> RTC 32KCLK Source: External.
> MMC:   OMAP SD/MMC: 0, OMAP SD/MMC: 1
> Loading Environment from EXT4...
> ** Unable to use mmc 0:1 for loading the env **
> Board: BeagleBone Black
> <ethaddr> not set. Validating first E-fuse MAC
> BeagleBone Black:
> BeagleBone: cape eeprom: i2c_probe: 0x54:
> BeagleBone: cape eeprom: i2c_probe: 0x55:
> BeagleBone: cape eeprom: i2c_probe: 0x56:
> BeagleBone: cape eeprom: i2c_probe: 0x57:
> Net:   eth0: MII MODE
> cpsw, usb_ether
> Press SPACE to abort autoboot in 0 seconds
> board_name=[A335BNLT] ...
> board_rev=[00C0] ...
> switch to partitions #0, OK
> mmc0 is current device
> SD/MMC found on device 0
> switch to partitions #0, OK
> mmc0 is current device
> Scanning mmc 0:1...
> Found /extlinux/extlinux.conf
> Retrieving file: /extlinux/extlinux.conf
> 218 bytes read in 6 ms (35.2 KiB/s)
> 1:      Poky (Yocto Project Reference Distro)
> Retrieving file: /extlinux/../zImage
> 12653056 bytes read in 800 ms (15.1 MiB/s)
> append: root=PARTUUID= rootwait rw earlycon console=ttyO0,115200n8,115200
> Retrieving file: /extlinux/../am335x-boneblack.dtb
> 99078 bytes read in 13 ms (7.3 MiB/s)
> ## Flattened Device Tree blob at 88000000
>    Booting using the fdt blob at 0x88000000
>    Loading Device Tree to 8ffe4000, end 8ffff305 ... OK
> 
> Starting kernel ...
> 
> [    0.000000] Booting Linux on physical CPU 0x0
> [    0.000000] Linux version 6.1.69-ti (oe-user@oe-host)
> (arm-poky-linux-gnueabi-gcc (GCC) 13.2.0, GNU ld (GNU Binutils)
> 2.42.0.20240216) #1 SMP PREEMPT Mon Jan 29 18:204
> [    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: TI AM335x BeagleBone Black
> [    0.000000] earlycon: omap8250 at MMIO 0x44e09000 (options '')
> [    0.000000] printk: bootconsole [omap8250] enabled
> [    0.000000] Memory policy: Data cache writeback
> [    0.000000] efi: UEFI not found.
> [    0.000000] cma: Reserved 48 MiB at 0x9c800000
> [    0.000000] Zone ranges:
> [    0.000000]   Normal   [mem 0x0000000080000000-0x000000009fdfffff]
> [    0.000000]   HighMem  empty
> [    0.000000] Movable zone start for each node
> [    0.000000] Early memory node ranges
> [    0.000000]   node   0: [mem 0x0000000080000000-0x000000009fdfffff]
> [    0.000000] Initmem setup node 0 [mem
> 0x0000000080000000-0x000000009fdfffff]
> [    0.000000] CPU: All CPU(s) started in SVC mode.
> [    0.000000] AM335X ES2.1 (sgx neon)
> [    0.000000] percpu: Embedded 18 pages/cpu s41428 r8192 d24108 u73728
> [    0.000000] Built 1 zonelists, mobility grouping on.  Total pages: 129412
> [    0.000000] Kernel command line: root=PARTUUID= rootwait rw earlycon
> console=ttyO0,115200n8,115200
> [    0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144
> bytes, linear)
> [    0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072
> bytes, linear)
> [    0.000000] mem auto-init: stack:all(zero), heap alloc:on, heap free:off
> [    0.000000] Memory: 442892K/522240K available (16384K kernel code, 1686K
> rwdata, 4440K rodata, 1024K init, 455K bss, 30196K reserved, 49152K
> cma-reserved, 0K highmem)
> [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
> [    0.000000] ftrace: allocating 50610 entries in 149 pages
> [    0.000000] ftrace: allocated 149 pages with 4 groups
> [    0.000000] trace event string verifier disabled
> [    0.000000] rcu: Preemptible hierarchical RCU implementation.
> [    0.000000] rcu:     RCU restricting CPUs from NR_CPUS=2 to nr_cpu_ids=1.
> [    0.000000]  Trampoline variant of Tasks RCU enabled.
> [    0.000000]  Rude variant of Tasks RCU enabled.
> [    0.000000]  Tracing variant of Tasks RCU enabled.
> [    0.000000] rcu: RCU calculated value of scheduler-enlistment delay is
> 25 jiffies.
> [    0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
> [    0.000000] NR_IRQS: 16, nr_irqs: 16, preallocated irqs: 16
> [    0.000000] IRQ: Found an INTC at 0x(ptrval) (revision 5.0) with 128
> interrupts
> [    0.000000] rcu: srcu_init: Setting srcu_struct sizes based on
> contention.
> [    0.000000] TI gptimer clocksource: always-on /ocp/interconnect@44c00000
> /segment@200000/target-module@31000
> [    0.000002] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every
> 89478484971ns
> [    0.008068] clocksource: dmtimer: mask: 0xffffffff max_cycles:
> 0xffffffff, max_idle_ns: 79635851949 ns
> [    0.018002] TI gptimer clockevent: 24000000 Hz at
> /ocp/interconnect@48000000/segment@0/target-module@40000
> [    0.029329] Console: colour dummy device 80x30
> [    0.034029] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
> [    0.040765] This ensures that you still see kernel messages. Please
> [    0.047223] update your kernel commandline.
> [    0.051587] Calibrating delay loop... 995.32 BogoMIPS (lpj=1990656)
> [    0.074478] CPU: Testing write buffer coherency: ok
> [    0.079591] CPU0: Spectre v2: using BPIALL workaround
> [    0.084801] pid_max: default: 32768 minimum: 301
> [    0.090028] LSM: Security Framework initializing
> [    0.094923] landlock: Up and running.
> [    0.098710] Yama: becoming mindful.
> [    0.102614] AppArmor: AppArmor initialized
> [    0.106865] TOMOYO Linux initialized
> [    0.110599] LSM support for eBPF active
> [    0.114831] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes,
> linear)
> [    0.122385] Mountpoint-cache hash table entries: 1024 (order: 0, 4096
> bytes, linear)
> [    0.134142] cblist_init_generic: Setting adjustable number of callback
> queues.
> [    0.141692] cblist_init_generic: Setting shift to 0 and lim to 1.
> [    0.148206] cblist_init_generic: Setting adjustable number of callback
> queues.
> [    0.155687] cblist_init_generic: Setting shift to 0 and lim to 1.
> [    0.162178] cblist_init_generic: Setting adjustable number of callback
> queues.
> [    0.169653] cblist_init_generic: Setting shift to 0 and lim to 1.
> [    0.176195] Setting up static identity map for 0x80100000 - 0x80100060
> [    0.183196] rcu: Hierarchical SRCU implementation.
> [    0.188174] rcu:     Max phase no-delay instances is 1000.
> [    0.195209] EFI services will not be available.
> [    0.200736] smp: Bringing up secondary CPUs ...
> [    0.205481] smp: Brought up 1 node, 1 CPU
> [    0.209628] SMP: Total of 1 processors activated (995.32 BogoMIPS).
> [    0.216099] CPU: All CPU(s) started in SVC mode.
> [    0.221891] devtmpfs: initialized
> [    0.248887] VFP support v0.3: implementor 41 architecture 3 part 30
> variant c rev 3
> [    0.257438] clocksource: jiffies: mask: 0xffffffff max_cycles:
> 0xffffffff, max_idle_ns: 7645041785100000 ns
> [    0.267544] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
> [    0.279749] pinctrl core: initialized pinctrl subsystem
> [    0.286562] DMI not present or invalid.
> [    0.291573] NET: Registered PF_NETLINK/PF_ROUTE protocol family
> [    0.306527] DMA: preallocated 256 KiB pool for atomic coherent
> allocations
> [    0.314286] audit: initializing netlink subsys (disabled)
> [    0.321360] thermal_sys: Registered thermal governor 'fair_share'
> [    0.321384] thermal_sys: Registered thermal governor 'bang_bang'
> [    0.327762] audit: type=2000 audit(0.232:1): state=initialized
> audit_enabled=0 res=1
> [    0.341952] thermal_sys: Registered thermal governor 'step_wise'
> [    0.341961] thermal_sys: Registered thermal governor 'user_space'
> [    0.348159] thermal_sys: Registered thermal governor 'power_allocator'
> [    0.354588] cpuidle: using governor ladder
> [    0.365590] cpuidle: using governor menu
> [    0.392937] hw-breakpoint: debug architecture 0x4 unsupported.
> [    0.413611] kprobes: kprobe jump-optimization is enabled. All kprobes
> are optimized if possible.
> [    0.441354] raid6: skipped pq benchmark and selected neonx8
> [    0.452017] raid6: using neon recovery algorithm
> [    0.468087] iommu: Default domain type: Translated
> [    0.473185] iommu: DMA domain TLB invalidation policy: strict mode
> [    0.489780] SCSI subsystem initialized
> [    0.501001] usbcore: registered new interface driver usbfs
> [    0.512146] usbcore: registered new interface driver hub
> [    0.524089] usbcore: registered new device driver usb
> [    0.536781] pps_core: LinuxPPS API ver. 1 registered
> [    0.548015] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo
> Giometti <giometti@linux.it>
> [    0.564043] PTP clock support registered
> [    0.577552] NetLabel: Initializing
> [    0.588018] NetLabel:  domain hash size = 128
> [    0.592525] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
> [    0.604158] NetLabel:  unlabeled traffic allowed by default
> [    0.620692] clocksource: Switched to clocksource dmtimer
> [    0.634086] VFS: Disk quotas dquot_6.6.0
> [    0.644882] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096
> bytes)
> [    0.656972] FS-Cache: Loaded
> [    0.664821] CacheFiles: Loaded
> [    0.673204] AppArmor: AppArmor Filesystem Enabled
> [    0.704059] NET: Registered PF_INET protocol family
> [    0.717040] IP idents hash table entries: 8192 (order: 4, 65536 bytes,
> linear)
> [    0.734482] tcp_listen_portaddr_hash hash table entries: 512 (order: 0,
> 4096 bytes, linear)
> [    0.752899] Table-perturb hash table entries: 65536 (order: 6, 262144
> bytes, linear)
> [    0.768718] TCP established hash table entries: 4096 (order: 2, 16384
> bytes, linear)
> [    0.784765] TCP bind hash table entries: 4096 (order: 4, 65536 bytes,
> linear)
> [    0.800775] TCP: Hash tables configured (established 4096 bind 4096)
> [    0.813054] MPTCP token hash table entries: 512 (order: 1, 8192 bytes,
> linear)
> [    0.828795] UDP hash table entries: 256 (order: 1, 8192 bytes, linear)
> [    0.844723] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes,
> linear)
> [    0.857230] NET: Registered PF_UNIX/PF_LOCAL protocol family
> [    0.873449] RPC: Registered named UNIX socket transport module.
> [    0.884695] RPC: Registered udp transport module.
> [    0.892688] RPC: Registered tcp transport module.
> [    0.904698] RPC: Registered tcp NFSv4.1 backchannel transport module.
> [    0.916707] NET: Registered PF_XDP protocol family
> [    2.057584] Initialise system trusted keyrings
> [    2.064353] workingset: timestamp_bits=14 max_order=17 bucket_order=3
> [    2.081692] zbud: loaded
> [    2.089227] NFS: Registering the id_resolver key type
> [    2.094600] Key type id_resolver registered
> [    2.098937] Key type id_legacy registered
> [    2.103293] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
> [    2.110222] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver
> Registering...
> [    2.117932] jffs2: version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat,
> Inc.
> [    2.126320] fuse: init (API version 7.37)
> [    2.223398] NET: Registered PF_ALG protocol family
> [    2.228520] xor: measuring software checksum speed
> [    2.241238]    arm4regs        :  1270 MB/sec
> [    2.254710]    8regs           :  1099 MB/sec
> [    2.268180]    32regs          :  1099 MB/sec
> [    2.278200]    neon            :  1783 MB/sec
> [    2.282696] xor: using function: neon (1783 MB/sec)
> [    2.287741] Key type asymmetric registered
> [    2.291976] Asymmetric key parser 'x509' registered
> [    2.299642] alg: self-tests for CTR-KDF (hmac(sha256)) passed
> [    2.306168] Block layer SCSI generic (bsg) driver version 0.4 loaded
> (major 244)
> [    2.314270] io scheduler mq-deadline registered
> [    2.326615] Serial: 8250/16550 driver, 6 ports, IRQ sharing disabled
> [    2.354956] loop: module loaded
> [    2.358858] SPI driver tps6594 has no spi_device_id for ti,tps6594-q1
> [    2.365541] SPI driver tps6594 has no spi_device_id for ti,tps6593-q1
> [    2.372185] SPI driver tps6594 has no spi_device_id for ti,lp8764-q1
> [    2.383380] usbcore: registered new interface driver smsc95xx
> [    2.393632] i2c_dev: i2c /dev entries driver
> [    2.398311] Driver for 1-wire Dallas network protocol.
> [    2.405002] softdog: initialized. soft_noboot=0 soft_margin=60 sec
> soft_panic=0 (nowayout=0)
> [    2.413734] softdog:              soft_reboot_cmd=<not set>
> soft_active_on_boot=0
> [    2.422541] cpuidle: enable-method property 'ti,am3352' found operations
> [    2.430352] sdhci: Secure Digital Host Controller Interface driver
> [    2.436776] sdhci: Copyright(c) Pierre Ossman
> [    2.441277] sdhci-pltfm: SDHCI platform and OF driver helper
> [    2.447615] ledtrig-cpu: registered to indicate activity on CPUs
> [    2.454533] hid: raw HID events driver (C) Jiri Kosina
> [    2.460601] usbcore: registered new interface driver usbhid
> [    2.466401] usbhid: USB HID core driver
> [    2.472766] NET: Registered PF_INET6 protocol family
> [    2.482755] Segment Routing with IPv6
> [    2.486926] In-situ OAM (IOAM) with IPv6
> [    2.491263] mip6: Mobile IPv6
> [    2.494566] NET: Registered PF_PACKET protocol family
> [    2.500227] Key type dns_resolver registered
> [    2.504771] mpls_gso: MPLS GSO support
> [    2.508856] ThumbEE CPU extension supported.
> [    2.513298] Registering SWP/SWPB emulation handler
> [    2.518251] omap_voltage_late_init: Voltage driver support not added
> [    2.526359] registered taskstats version 1
> [    2.530792] Loading compiled-in X.509 certificates
> [    2.536739] zswap: loaded using pool lzo/zbud
> [    2.542631] Key type .fscrypt registered
> [    2.546840] Key type fscrypt-provisioning registered
> [    2.561788] Btrfs loaded, crc32c=crc32c-generic, zoned=yes, fsverity=yes
> [    2.571469] Key type encrypted registered
> [    2.575883] AppArmor: AppArmor sha1 policy hashing enabled
> [    2.581759] ima: No TPM chip found, activating TPM-bypass!
> [    2.587664] ima: Allocated hash algorithm: sha256
> [    2.592803] ima: No architecture policies found
> [    2.597661] evm: Initialising EVM extended attributes:
> [    2.602985] evm: security.selinux
> [    2.606412] evm: security.SMACK64 (disabled)
> [    2.610825] evm: security.SMACK64EXEC (disabled)
> [    2.615587] evm: security.SMACK64TRANSMUTE (disabled)
> [    2.620799] evm: security.SMACK64MMAP (disabled)
> [    2.625560] evm: security.apparmor
> [    2.629071] evm: security.ima
> [    2.632121] evm: security.capability
> [    2.635810] evm: HMAC attrs: 0x1
> [    2.683301] remoteproc remoteproc0: wkup_m3 is available
> [    2.702524] pinctrl-single 44e10800.pinmux: 142 pins, size 568
> [    2.715024] ti-sysc: probe of 44e31000.target-module failed with error
> -16
> [    2.726119] omap_wdt: OMAP Watchdog Timer Rev 0x01: initial timeout 60
> sec
> [    2.737737] omap_rtc 44e3e000.rtc: registered as rtc0
> [    2.743061] omap_rtc 44e3e000.rtc: setting system clock to
> 2000-01-01T00:00:00 UTC (946684800)
> [    2.763281] ti-sysc: probe of 48040000.target-module failed with error
> -16
> [    2.785171] gpio gpiochip0: (gpio-0-31): not an immutable chip, please
> consider fixing it!
> [    2.794444] OMAP GPIO hardware version 0.1
> [    2.805375] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
> [    2.818643] at24 2-0054: supply vcc not found, using dummy regulator
> [    2.856849] at24 2-0055: supply vcc not found, using dummy regulator
> [    2.892531] at24 2-0056: supply vcc not found, using dummy regulator
> [    2.928560] at24 2-0057: supply vcc not found, using dummy regulator
> [    2.964125] omap_i2c 4819c000.i2c: bus 2 rev0.11 at 100 kHz
> [    2.975562] gpio gpiochip1: (gpio-32-63): not an immutable chip, please
> consider fixing it!
> [    2.987140] gpio gpiochip2: (gpio-64-95): not an immutable chip, please
> consider fixing it!
> [    3.001969] sdhci-omap 481d8000.mmc: supply pbias not found, using dummy
> regulator
> [    3.018359] sdhci-omap 481d8000.mmc: supply vqmmc not found, using dummy
> regulator
> [    3.028511] omap_rng 48310000.rng: Random Number Generator ver. 20
> [    3.035855] random: crng init done
> [    3.092730] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus
> freq 1000000
> [    3.126125] SMSC LAN8710/LAN8720: probe of 4a101000.mdio:00 failed with
> error -5
> [    3.133894] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00,
> driver SMSC LAN8710/LAN8720
> [    3.144040] cpsw-switch 4a100000.switch: initialized cpsw ale version 1.4
> [    3.151110] cpsw-switch 4a100000.switch: ALE Table size 1024
> [    3.157084] cpsw-switch 4a100000.switch: cpts: overflow check period
> 1250 (jiffies)
> [    3.165001] cpsw-switch 4a100000.switch: CPTS: ref_clk_freq:250000000
> calc_mult:2147483648 calc_shift:29 error:0 nsec/sec
> [    3.176410] cpsw-switch 4a100000.switch: Detected MACID =
> 68:5e:1c:03:07:bf
> [    3.185575] cpsw-switch 4a100000.switch: initialized (regs 0x4a100000,
> pool size 256) hw_ver:0019010C 1.12 (0)
> [    3.210379] debugfs: Directory '49000000.dma' with parent 'dmaengine'
> already present!
> [    3.218638] edma 49000000.dma: TI EDMA DMA engine driver
> [    3.230547] am335x-phy-driver 47401300.usb-phy: supply vcc not found,
> using dummy regulator
> [    3.239674] am335x-phy-driver 47401300.usb-phy: dummy supplies not
> allowed for exclusive requests
> [    3.255611] am335x-phy-driver 47401b00.usb-phy: supply vcc not found,
> using dummy regulator
> [    3.264906] am335x-phy-driver 47401b00.usb-phy: dummy supplies not
> allowed for exclusive requests
> [    3.288119] musb-hdrc musb-hdrc.1: MUSB HDRC host driver
> [    3.293805] musb-hdrc musb-hdrc.1: new USB bus registered, assigned bus
> number 1
> [    3.301785] usb usb1: New USB device found, idVendor=1d6b,
> idProduct=0002, bcdDevice= 6.01
> [    3.310336] usb usb1: New USB device strings: Mfr=3, Product=2,
> SerialNumber=1
> [    3.317791] usb usb1: Product: MUSB HDRC host driver
> [    3.322915] usb usb1: Manufacturer: Linux 6.1.69-ti musb-hcd
> [    3.328755] usb usb1: SerialNumber: musb-hdrc.1
> [    3.334399] hub 1-0:1.0: USB hub found
> [    3.338446] hub 1-0:1.0: 1 port detected
> [    3.364408] omap-sham 53100000.sham: hw accel on OMAP rev 4.3
> [    3.370789] omap-sham 53100000.sham: will run requests pump with
> realtime priority
> [    3.382899] omap-aes 53500000.aes: OMAP AES hw accel rev: 3.2
> [    3.389523] omap-aes 53500000.aes: will run requests pump with realtime
> priority
> [    3.405436] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5
> counters available
> [    3.419147] l3-aon-clkctrl:0000:0: failed to disable
> [    3.427855] gpio gpiochip3: (gpio-96-127): not an immutable chip, please
> consider fixing it!
> [    3.439204] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 41,
> base_baud = 3000000) is a 8250
> [    3.448493] printk: console [ttyS0] enabled
> [    3.448493] printk: console [ttyS0] enabled
> [    3.457110] printk: bootconsole [omap8250] disabled
> [    3.457110] printk: bootconsole [omap8250] disabled
> [    3.493448] tps65217-pmic: Failed to locate of_node [id: -1]
> [    3.510500] tps65217-bl: Failed to locate of_node [id: -1]
> [    3.520003] tps65217 0-0024: TPS65217 ID 0xe version 1.2
> [    3.527310] at24 0-0050: 32768 byte 24c256 EEPROM, writable, 1
> bytes/write
> [    3.534718] i2c 0-0070: Fixed dependency cycle(s) with
> /ocp/interconnect@48000000/segment@300000/target-module@e000/lcdc@0
> /port/endpoint@0
> [    3.667523] tda998x 0-0070: found TDA19988
> [    3.675108] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
> [    3.683307] omap_gpio 44e07000.gpio: Could not set line 6 debounce to
> 200000 microseconds (-22)
> [    3.693654] tilcdc 4830e000.lcdc: bound 0-0070 (ops 0xc11bf9a8)
> [    3.699748] sdhci-omap 48060000.mmc: Got CD GPIO
> [    3.705997] [drm] Initialized tilcdc 1.0.0 20121205 for 4830e000.lcdc on
> minor 0
> [    3.713860] sdhci-omap 48060000.mmc: supply pbias not found, using dummy
> regulator
> [    3.723323] sdhci-omap 48060000.mmc: supply vqmmc not found, using dummy
> regulator
> [    3.757212] mmc0: SDHCI controller on 48060000.mmc [48060000.mmc] using
> External DMA
> [    3.828717] mmc0: new high speed SDHC card at address aaaa
> [    3.833620] mmcblk0: mmc0:aaaa SD32G 29.7 GiB
> [    3.837419]  mmcblk0: p1 p2
> [    3.839151] Console: switching to colour frame buffer device 160x64
> [    3.868128] tilcdc 4830e000.lcdc: [drm] fb0: tilcdcdrmfb frame buffer
> device
> [    3.878981] sdhci-omap 481d8000.mmc: supply pbias not found, using dummy
> regulator
> [    3.891295] tps6521x_pwrbutton tps65217-pwrbutton: DMA mask not set
> [    3.899587] sdhci-omap 481d8000.mmc: supply vqmmc not found, using dummy
> regulator
> [    3.910419] input: tps65217_pwrbutton as
> /devices/platform/ocp/44c00000.interconnect/44c00000.interconnect:segment@200000
> /44e0b000.target-module/44e0b000.i2c/i2c-0/0-0
> [    3.952837] mmc1: SDHCI controller on 481d8000.mmc [481d8000.mmc] using
> External DMA
> [    3.961253] VFS: PARTUUID= is invalid.
> [    3.961253] Expected PARTUUID=<valid-uuid-id>[/PARTNROFF=%d]
> [    3.970800] Disabling rootwait; root= is invalid.
> [    3.977324] /dev/root: Can't open blockdev
> [    3.981716] VFS: Cannot open root device "PARTUUID=" or
> unknown-block(0,0): error -6
> [    3.989649] Please append a correct "root=" boot option; here are the
> available partitions:
> [    3.998200] b300        31166976 mmcblk0
> [    3.998216]  driver: mmcblk
> [    4.005313]   b301          131072 mmcblk0p1 076c4a2a-01
> [    4.005328]
> [    4.012322]   b302         2027747 mmcblk0p2 076c4a2a-02
> [    4.012334]
> [    4.019437] Kernel panic - not syncing: VFS: Unable to mount root fs on
> unknown-block(0,0)
> [    4.027753] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.1.69-ti #1
> [    4.033966] Hardware name: Generic AM33XX (Flattened Device Tree)
> [    4.040101]  unwind_backtrace from show_stack+0x18/0x1c
> [    4.045389]  show_stack from dump_stack_lvl+0x40/0x4c
> [    4.050478]  dump_stack_lvl from panic+0x11c/0x35c
> [    4.055310]  panic from mount_block_root+0x158/0x1f4
> [    4.060314]  mount_block_root from prepare_namespace+0x158/0x194
> [    4.066358]  prepare_namespace from kernel_init_freeable+0x254/0x268
> [    4.072750]  kernel_init_freeable from kernel_init+0x20/0x13c
> [    4.078531]  kernel_init from ret_from_fork+0x14/0x28
> [    4.083614] Exception stack(0xe0009fb0 to 0xe0009ff8)
> [    4.088692] 9fa0:                                     00000000 00000000
> 00000000 00000000
> [    4.096909] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000
> 00000000 00000000
> [    4.105124] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000
> [    4.111788] ---[ end Kernel panic - not syncing: VFS: Unable to mount
> root fs on unknown-block(0,0) ]---