AM3354: Unhandled fault: external abort on non-linefetch (0x1008) at 0xd02e6000

Hello Champs,

HW: am3354 own board with ddr3 SCB13H2G160AF（256MB）,nand flash MX30LF4G18AC MT29F4G08ABADA （512MB）, PMIC tps65910

SW: sdk07.03.00，u-boot 2020.01, linux kernel: 5.4.106

Build the u-boot 2020.01 and download via uart. Then using tftp to load and boot dtb and image. After the system booting up, it stucked at Unhandled fault: external abort on non-linefetch (0x1008) at 0xd02e6000

linux kernel 5.4.106: config and dts：tisdk_am335x-evm_defconfig和am335x-evm.dts

The steps to compile the kernel：

$ cd source_code/ti-processor-sdk-linux-am335x-evm-07.03.00.005/board-support/linux-5.4.106+gitAUTOINC+023faefa70-g023faefa70
$ source ./environment-setup
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf- distclean
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf- tisdk_am335x-evm_defconfig
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf- am335x-evm.dtb                              //支持nand flash
$ make ARCH=arm CROSS_COMPILE=arm-none-linux-gnueabihf- LOADADDR=0x80008000 uImage

tftp load dtb and uImage：

set bootargs noinitrd root=/dev/nfs rw nfsroot=192.168.7.170:/home/d/wangyuan/imac120/ti-processor-sdk-linux-am335x-evm-07.03.00.005/targetNFS ip=192.168.7.235:::::eth0:off console=ttyO0,115200n8 loglevel=8
setenv ipaddr 192.168.7.235
setenv gatewayip 192.168.7.1
setenv serverip 192.168.7.47
setenv netmask 255.255.255.0
tftp 0x82000000 uImage                   //参考u-boot环境变量(pri)进行设置
tftp 0x88000000 am335x-evm.dtb    //参考u-boot环境变量(pri)进行设置
bootm 0x82000000 - 0x88000000

Try to use arm-none-linux-gnueabihf-addr2line to find the reason ，it prompted below error：

[    2.217383] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz

[    2.223678] 8<--- cut here ---

[    2.226766] Unhandled fault: external abort on non-linefetch (0x1008) at 0xd02e6000

[    2.234462] pgd = 46ee4814

[    2.237180] [d02e6000] *pgd=8f14e811, *pte=4a326653, *ppte=4a326453

[    2.243495] Internal error: : 1008 [#1] PREEMPT ARM

[    2.248396] Modules linked in:

[    2.251475] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 5.4.106-g023faefa70 #2

[    2.258814] Hardware name: Generic AM33XX (Flattened Device Tree)

[    2.264967] Workqueue: events deferred_probe_work_func

[    2.270141] PC is at sysc_probe+0x83c/0x1194

[    2.274442] LR is at omap_reset_deassert+0xc4/0x210

[    2.279339] pc : [<c046c6e4>]    lr : [<c04eccdc>]    psr: 60000013

[    2.285633] sp : cf14de10  ip : 00000001  fp : 00000000

[    2.290879] r10: ce06e4c0  r9 : 00000028  r8 : c0a2c79c

[    2.296127] r7 : cf16c010  r6 : c0a2cc5c  r5 : 00000000  r4 : ce05bb40

[    2.302682] r3 : d02e6000  r2 : 00000000  r1 : 00026000  r0 : 00000000

[    2.309241] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none

[    2.316408] Control: 10c5387d  Table: 80004019  DAC: 00000051

[    2.322181] Process kworker/0:1 (pid: 14, stack limit = 0x99661a37)

[    2.328475] Stack: (0xcf14de10 to 0xcf14e000)

pc : [<c046c6e4>]    lr : [<c04eccdc>]    psr: 60000013

Analyzing the vmlinux and trace the code where is wrong

$ arm-none-linux-gnueabihf-addr2line -f -e vmlinux c046c6e4

__raw_readl

/home/****/***/ti-processor-sdk-linux-am335x-evm-07.03.00.005/board-support/linux-5.4.106+gitAUTOINC+023faefa70-g023faefa70/./arch/arm/include/asm/io.h:113

vim ./arch/arm/include/asm/io.h +113

#define __raw_readl __raw_readl

static inline u32 __raw_readl(const volatile void __iomem *addr)

{

        u32 val;

        asm volatile("ldr %0, %1"

                     : "=r" (val)

                     : "Qo" (*(volatile u32 __force *)addr));

        return val;

           }

Below is the failure log:

U-Boot 2020.01-dirty (Oct 22 2021 - 14:54:58 +0800)

CPU : AM335X-GP rev 2.1
Model: TI AM335x EVM
DRAM: 256 MiB
board_init
&cdev->miisel = 5
WDT: Started with servicing (60s timeout)
NAND: 512 MiB
MMC: OMAP SD/MMC: 0
Loading Environment from FAT... <ethaddr> not set. Validating first E-fuse MAC
Net: phy.c phy_probe
phy.c genphy_config_advert
phy_write 1st start
phy_write 1st
phy_write 2nd start
phy_write 2nd
phy.c genphy_restart_aneg
phy_write 4th
eth0: ethernet@4a100000
Hit any key to stop autoboot: 0
=> set bootargs noinitrd root=/dev/nfs rw nfsroot=192.168.7.170:/home/d/wangyuan/imac120/ti-processor-sdk-linux-am335x-evm-07.03.00.005/targetNFS ip=192.168.7.235:::::eth0:off console=ttyO0,115200n8 loglevel=8
=> setenv ipaddr 192.168.7.235
=> setenv gatewayip 192.168.7.1
=> setenv serverip 192.168.7.47
=> setenv netmask 255.255.255.0
=> tftp 0x82000000 uImage
link up on port 0, speed 100, full duplex
Using ethernet@4a100000 device
TFTP from server 192.168.7.47; our IP address is 192.168.7.235
Filename 'uImage'.
Load address: 0x82000000
Loading: #################################################################
#################################################################
#################################################################
#################################################################
#########################################################
2.2 MiB/s
done
Bytes transferred = 4649536 (46f240 hex)
=> tftp 0x88000000 am335x-evm.dtb
link up on port 0, speed 100, full duplex
Using ethernet@4a100000 device
TFTP from server 192.168.7.47; our IP address is 192.168.7.235
Filename 'am335x-evm.dtb'.
Load address: 0x88000000
Loading: #####
2 MiB/s
done
Bytes transferred = 63872 (f980 hex)
=> bootm 0x82000000 - 0x88000000
## Booting kernel from Legacy Image at 82000000 ...
Image Name: Linux-5.4.106-g023faefa70
Created: 2021-11-01 7:03:48 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 4649472 Bytes = 4.4 MiB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... OK
## Flattened Device Tree blob at 88000000
Booting using the fdt blob at 0x88000000
Loading Kernel Image
Loading Device Tree to 8df24000, end 8df3697f ... OK

Starting kernel ...

[ 0.000000] Booting Linux on physical CPU 0x0
[ 0.000000] Linux version 5.4.106-g023faefa70 (root@df131f57a6ff) (gcc version 9.2.1 20191025 (GNU Toolchain for the A-profile Architecture 9.2-2019.12 (arm-9.10))) #3 PREEMPT Mon Nov 1 15:02:55 CST 2021
[ 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 EVM
[ 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 0x8a800000
[ 0.000000] On node 0 totalpages: 65280
[ 0.000000] Normal zone: 574 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 65280 pages, LIFO batch:15
[ 0.000000] CPU: All CPU(s) started in SVC mode.
[ 0.000000] AM335X ES2.1 (sgx neon)
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 64706
[ 0.000000] Kernel command line: noinitrd root=/dev/nfs rw nfsroot=192.168.7.170:/home/d/wangyuan/imac120/ti-processor-sdk-linux-am335x-evm-07.03.00.005/targetNFS ip=192.168.7.235:::::eth0:off console=ttyO0,115200n8 loglevel=8
[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Memory: 194180K/261120K available (9216K kernel code, 294K rwdata, 3092K rodata, 1024K init, 255K bss, 17788K reserved, 49152K cma-reserved, 0K highmem)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies.
[ 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] random: get_random_bytes called from start_kernel+0x2b4/0x470 with crng_init=0
[ 0.000000] OMAP clockevent source: timer2 at 24000000 Hz
[ 0.000024] sched_clock: 32 bits at 24MHz, resolution 41ns, wraps every 89478484971ns
[ 0.000052] clocksource: timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 79635851949 ns
[ 0.000065] OMAP clocksource: timer1 at 24000000 Hz
[ 0.000443] timer_probe: no matching timers found
[ 0.000689] Console: colour dummy device 80x30
[ 0.000740] WARNING: Your 'console=ttyO0' has been replaced by 'ttyS0'
[ 0.000748] This ensures that you still see kernel messages. Please
[ 0.000755] update your kernel commandline.
[ 0.000820] Calibrating delay loop... 597.60 BogoMIPS (lpj=2988032)
[ 0.118665] pid_max: default: 32768 minimum: 301
[ 0.118966] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.118986] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear)
[ 0.120220] CPU: Testing write buffer coherency: ok
[ 0.120313] CPU0: Spectre v2: using BPIALL workaround
[ 0.121449] Setting up static identity map for 0x80100000 - 0x80100060
[ 0.121658] rcu: Hierarchical SRCU implementation.
[ 0.121769] EFI services will not be available.
[ 0.122266] devtmpfs: initialized
[ 0.138367] VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 3
[ 0.139009] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.139041] futex hash table entries: 256 (order: -1, 3072 bytes, linear)
[ 0.143767] pinctrl core: initialized pinctrl subsystem
[ 0.144869] DMI not present or invalid.
[ 0.145504] NET: Registered protocol family 16
[ 0.148864] DMA: preallocated 256 KiB pool for atomic coherent allocations
[ 0.179382] l3-aon-clkctrl:0000:0: failed to disable
[ 0.182123] cpuidle: using governor ladder
[ 0.182169] cpuidle: using governor menu
[ 0.206347] No ATAGs?
[ 0.206363] hw-breakpoint: debug architecture 0x4 unsupported.
[ 0.229739] debugfs: Directory '49000000.edma' with parent 'dmaengine' already present!
[ 0.229788] edma 49000000.edma: TI EDMA DMA engine driver
[ 0.230767] reg-fixed-voltage fixedregulator0: GPIO lookup for consumer (null)
[ 0.230786] reg-fixed-voltage fixedregulator0: using device tree for GPIO lookup
[ 0.230822] of_get_named_gpiod_flags: can't parse 'gpios' property of node '/fixedregulator0[0]'
[ 0.230847] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator0[0]'
[ 0.230866] reg-fixed-voltage fixedregulator0: using lookup tables for GPIO lookup
[ 0.230880] reg-fixed-voltage fixedregulator0: No GPIO consumer (null) found
[ 0.231297] reg-fixed-voltage fixedregulator1: GPIO lookup for consumer (null)
[ 0.231315] reg-fixed-voltage fixedregulator1: using device tree for GPIO lookup
[ 0.231343] of_get_named_gpiod_flags: can't parse 'gpios' property of node '/fixedregulator1[0]'
[ 0.231366] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator1[0]'
[ 0.231381] reg-fixed-voltage fixedregulator1: using lookup tables for GPIO lookup
[ 0.231394] reg-fixed-voltage fixedregulator1: No GPIO consumer (null) found
[ 0.231742] reg-fixed-voltage fixedregulator-v1_8d: GPIO lookup for consumer (null)
[ 0.231759] reg-fixed-voltage fixedregulator-v1_8d: using device tree for GPIO lookup
[ 0.231786] of_get_named_gpiod_flags: can't parse 'gpios' property of node '/fixedregulator-v1_8d[0]'
[ 0.231810] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator-v1_8d[0]'
[ 0.231825] reg-fixed-voltage fixedregulator-v1_8d: using lookup tables for GPIO lookup
[ 0.231838] reg-fixed-voltage fixedregulator-v1_8d: No GPIO consumer (null) found
[ 0.232055] v1_8d: supplied by vbat
[ 0.232255] reg-fixed-voltage fixedregulator-v3_3d: GPIO lookup for consumer (null)
[ 0.232270] reg-fixed-voltage fixedregulator-v3_3d: using device tree for GPIO lookup
[ 0.232296] of_get_named_gpiod_flags: can't parse 'gpios' property of node '/fixedregulator-v3_3d[0]'
[ 0.232319] of_get_named_gpiod_flags: can't parse 'gpio' property of node '/fixedregulator-v3_3d[0]'
[ 0.232334] reg-fixed-voltage fixedregulator-v3_3d: using lookup tables for GPIO lookup
[ 0.232348] reg-fixed-voltage fixedregulator-v3_3d: No GPIO consumer (null) found
[ 0.232551] v3_3d: supplied by vbat
[ 0.233888] iommu: Default domain type: Translated
[ 0.236985] SCSI subsystem initialized
[ 0.237672] mc: Linux media interface: v0.10
[ 0.237727] videodev: Linux video capture interface: v2.00
[ 0.237856] pps_core: LinuxPPS API ver. 1 registered
[ 0.237867] pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
[ 0.237896] PTP clock support registered
[ 0.237944] EDAC MC: Ver: 3.0.0
[ 0.240107] Advanced Linux Sound Architecture Driver Initialized.
[ 0.241824] clocksource: Switched to clocksource timer1
[ 0.253196] thermal_sys: Registered thermal governor 'fair_share'
[ 0.253208] thermal_sys: Registered thermal governor 'bang_bang'
[ 0.253232] thermal_sys: Registered thermal governor 'step_wise'
[ 0.253241] thermal_sys: Registered thermal governor 'user_space'
[ 0.253251] thermal_sys: Registered thermal governor 'power_allocator'
[ 0.254040] NET: Registered protocol family 2
[ 0.255101] tcp_listen_portaddr_hash hash table entries: 512 (order: 0, 4096 bytes, linear)
[ 0.255147] TCP established hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 0.255186] TCP bind hash table entries: 2048 (order: 1, 8192 bytes, linear)
[ 0.255222] TCP: Hash tables configured (established 2048 bind 2048)
[ 0.255363] UDP hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.255399] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes, linear)
[ 0.255597] NET: Registered protocol family 1
[ 0.256395] RPC: Registered named UNIX socket transport module.
[ 0.256414] RPC: Registered udp transport module.
[ 0.256422] RPC: Registered tcp transport module.
[ 0.256430] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.256452] PCI: CLS 0 bytes, default 64
[ 0.257756] hw perfevents: enabled with armv7_cortex_a8 PMU driver, 5 counters available
[ 0.259505] Initialise system trusted keyrings
[ 0.259960] workingset: timestamp_bits=14 max_order=16 bucket_order=2
[ 0.267301] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.268405] NFS: Registering the id_resolver key type
[ 0.268463] Key type id_resolver registered
[ 0.268474] Key type id_legacy registered
[ 0.268549] ntfs: driver 2.1.32 [Flags: R/O].
[ 0.269542] Key type asymmetric registered
[ 0.269560] Asymmetric key parser 'x509' registered
[ 0.269631] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 244)
[ 0.269646] io scheduler mq-deadline registered
[ 0.269656] io scheduler kyber registered
[ 0.276872] gpio gpiochip0: (gpio-0-31): added GPIO chardev (254:0)
[ 0.277035] gpiochip_setup_dev: registered GPIOs 0 to 31 on device: gpiochip0 (gpio-0-31)
[ 0.277104] OMAP GPIO hardware version 0.1
[ 0.305388] gpio gpiochip1: (gpio-32-63): added GPIO chardev (254:1)
[ 0.305530] gpiochip_setup_dev: registered GPIOs 32 to 63 on device: gpiochip1 (gpio-32-63)
[ 0.308235] omap-mailbox 480c8000.mailbox: omap mailbox rev 0x400
[ 0.325320] gpio gpiochip2: (gpio-64-95): added GPIO chardev (254:2)
[ 0.325477] gpiochip_setup_dev: registered GPIOs 64 to 95 on device: gpiochip2 (gpio-64-95)
[ 0.327250] gpio gpiochip3: (gpio-96-127): added GPIO chardev (254:3)
[ 0.327371] gpiochip_setup_dev: registered GPIOs 96 to 127 on device: gpiochip3 (gpio-96-127)
[ 0.337357] pinctrl-single 44e10800.pinmux: 142 pins, size 568
[ 0.341416] pwm-backlight backlight: GPIO lookup for consumer enable
[ 0.341442] pwm-backlight backlight: using device tree for GPIO lookup
[ 0.341483] of_get_named_gpiod_flags: can't parse 'enable-gpios' property of node '/backlight[0]'
[ 0.341508] of_get_named_gpiod_flags: can't parse 'enable-gpio' property of node '/backlight[0]'
[ 0.341527] pwm-backlight backlight: using lookup tables for GPIO lookup
[ 0.341542] pwm-backlight backlight: No GPIO consumer enable found
[ 0.341579] pwm-backlight backlight: backlight supply power not found, using dummy regulator
[ 0.411471] Serial: 8250/16550 driver, 10 ports, IRQ sharing enabled
[ 0.417795] 44e09000.serial: ttyS0 at MMIO 0x44e09000 (irq = 30, base_baud = 3000000) is a 8250
[ 1.377557] printk: console [ttyS0] enabled
[ 1.385560] omap_rng 48310000.rng: Random Number Generator ver. 20
[ 1.391962] random: fast init done
[ 1.395655] random: crng init done
[ 1.423359] brd: module loaded
[ 1.436452] loop: module loaded
[ 1.447124] mdio_bus fixed-0: GPIO lookup for consumer reset
[ 1.453014] mdio_bus fixed-0: using lookup tables for GPIO lookup
[ 1.459145] mdio_bus fixed-0: No GPIO consumer reset found
[ 1.464707] libphy: Fixed MDIO Bus: probed
[ 1.474170] mdio_bus 4a101000.mdio: GPIO lookup for consumer reset
[ 1.480401] mdio_bus 4a101000.mdio: using device tree for GPIO lookup
[ 1.486991] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0/mdio@1000[0]'
[ 1.501788] of_get_named_gpiod_flags: can't parse 'reset-gpio' property of node '/ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0/mdio@1000[0]'
[ 1.516491] mdio_bus 4a101000.mdio: using lookup tables for GPIO lookup
[ 1.523156] mdio_bus 4a101000.mdio: No GPIO consumer reset found
[ 1.581878] davinci_mdio 4a101000.mdio: davinci mdio revision 1.6, bus freq 1000000
[ 1.589578] libphy: 4a101000.mdio: probed
[ 1.594723] mdio_bus 4a101000.mdio:00: GPIO lookup for consumer reset
[ 1.601207] mdio_bus 4a101000.mdio:00: using device tree for GPIO lookup
[ 1.608095] of_get_named_gpiod_flags: can't parse 'reset-gpios' property of node '/ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0/mdio@1000/ethernet-phy@0[0]'
[ 1.624284] of_get_named_gpiod_flags: can't parse 'reset-gpio' property of node '/ocp/interconnect@4a000000/segment@0/target-module@100000/ethernet@0/mdio@1000/ethernet-phy@0[0]'
[ 1.640334] mdio_bus 4a101000.mdio:00: using lookup tables for GPIO lookup
[ 1.647310] mdio_bus 4a101000.mdio:00: No GPIO consumer reset found
[ 1.654307] davinci_mdio 4a101000.mdio: phy[0]: device 4a101000.mdio:00, driver SMSC LAN8710/LAN8720
[ 1.663793] cpsw 4a100000.ethernet: initialized cpsw ale version 1.4
[ 1.670184] cpsw 4a100000.ethernet: ALE Table size 1024
[ 1.675596] cpsw 4a100000.ethernet: cpts: overflow check period 500 (jiffies)
[ 1.682890] cpsw 4a100000.ethernet: Detected MACID = b0:7e:11:b4:ad:ae
[ 1.692124] i2c /dev entries driver
[ 1.699292] cpuidle: enable-method property 'ti,am3352' found operations
[ 1.706958] sdhci: Secure Digital Host Controller Interface driver
[ 1.713240] sdhci: Copyright(c) Pierre Ossman
[ 1.718926] sdhci-pltfm: SDHCI platform and OF driver helper
[ 1.726064] ledtrig-cpu: registered to indicate activity on CPUs
[ 1.738633] NET: Registered protocol family 10
[ 1.744983] Segment Routing with IPv6
[ 1.748787] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 1.755881] NET: Registered protocol family 17
[ 1.760827] Key type dns_resolver registered
[ 1.765517] omap_voltage_late_init: Voltage driver support not added
[ 1.772927] Loading compiled-in X.509 certificates
[ 1.795195] omap-gpmc 50000000.gpmc: GPMC revision 6.0
[ 1.800395] gpmc_mem_init: disabling cs 0 mapped at 0x0-0x1000000
[ 1.806763] gpiochip_find_base: found new base at 510
[ 1.812293] gpio gpiochip4: (omap-gpmc): added GPIO chardev (254:4)
[ 1.818715] gpiochip_setup_dev: registered GPIOs 510 to 511 on device: gpiochip4 (omap-gpmc)
[ 1.828723] omap2-nand 8000000.nand: GPIO lookup for consumer rb
[ 1.834865] omap2-nand 8000000.nand: using device tree for GPIO lookup
[ 1.841480] of_get_named_gpiod_flags: parsed 'rb-gpios' property of node '/ocp/gpmc@50000000/nand@0,0[0]' - status (0)
[ 1.852507] nand: device found, Manufacturer ID: 0xc2, Chip ID: 0xdc
[ 1.858892] nand: Macronix MX30LF4G18AC
[ 1.862773] nand: 512 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
[ 1.870573] nand: using OMAP_ECC_BCH8_CODE_HW ECC scheme
[ 1.876092] 10 fixed-partitions partitions found on MTD device omap2-nand.0
[ 1.883115] Creating 10 MTD partitions on "omap2-nand.0":
[ 1.888552] 0x000000000000-0x000000020000 : "NAND.SPL"
[ 1.896163] 0x000000020000-0x000000040000 : "NAND.SPL.backup1"
[ 1.904007] 0x000000040000-0x000000060000 : "NAND.SPL.backup2"
[ 1.911635] 0x000000060000-0x000000080000 : "NAND.SPL.backup3"
[ 1.919337] 0x000000080000-0x0000000c0000 : "NAND.u-boot-spl-os"
[ 1.927269] 0x0000000c0000-0x0000001c0000 : "NAND.u-boot"
[ 1.934910] 0x0000001c0000-0x0000001e0000 : "NAND.u-boot-env"
[ 1.942572] 0x0000001e0000-0x000000200000 : "NAND.u-boot-env.backup1"
[ 1.950777] 0x000000200000-0x000000a00000 : "NAND.kernel"
[ 1.961906] 0x000000a00000-0x000010000000 : "NAND.file-system"
[ 2.112155] tps65910 0-002d: No interrupt support, no core IRQ
[ 2.118267] tps65910-gpio tps65910-gpio: ti,en-gpio-sleep not specified
[ 2.125001] gpiochip_find_base: found new base at 504
[ 2.130363] gpio gpiochip5: (tps65910): added GPIO chardev (254:5)
[ 2.136746] gpiochip_setup_dev: registered GPIOs 504 to 509 on device: gpiochip5 (tps65910)
[ 2.149706] vrtc: supplied by vbat
[ 2.154783] vio: supplied by vbat
[ 2.160012] vdd_mpu: supplied by vbat
[ 2.165608] vdd_core: supplied by vbat
[ 2.172234] vdig1: supplied by vbat
[ 2.177196] vdig2: supplied by vbat
[ 2.182155] vpll: supplied by vbat
[ 2.187013] vdac: supplied by vbat
[ 2.191915] vaux1: supplied by vbat
[ 2.196862] vaux2: supplied by vbat
[ 2.201859] vaux33: supplied by vbat
[ 2.206920] vmmc: supplied by vbat
[ 2.211674] vbb: supplied by vbat
[ 2.215853] omap_i2c 44e0b000.i2c: bus 0 rev0.11 at 400 kHz
[ 2.222143] 8<--- cut here ---
[ 2.225227] Unhandled fault: external abort on non-linefetch (0x1008) at 0xd02e6000
[ 2.232925] pgd = 4815246e
[ 2.235644] [d02e6000] *pgd=8f131811, *pte=4a326653, *ppte=4a326453
[ 2.241960] Internal error: : 1008 [#1] PREEMPT ARM
[ 2.246861] Modules linked in:
[ 2.249941] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 5.4.106-g023faefa70 #3
[ 2.257279] Hardware name: Generic AM33XX (Flattened Device Tree)
[ 2.263431] Workqueue: events deferred_probe_work_func
[ 2.268606] PC is at sysc_probe+0x83c/0x1194
[ 2.272907] LR is at omap_reset_deassert+0xc4/0x210
[ 2.277806] pc : [<c046c6e4>] lr : [<c04eccdc>] psr: 60000013
[ 2.284100] sp : cf13fe10 ip : 00000001 fp : 00000000
[ 2.289346] r10: ce05e840 r9 : 00000028 r8 : c0a2c79c
[ 2.294593] r7 : cf168010 r6 : c0a2cc5c r5 : 00000000 r4 : ce055b40
[ 2.301149] r3 : d02e6000 r2 : 00000000 r1 : 00026000 r0 : 00000000
[ 2.307708] Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
[ 2.314875] Control: 10c5387d Table: 80004019 DAC: 00000051
[ 2.320648] Process kworker/0:1 (pid: 14, stack limit = 0xebeb89eb)
[ 2.326941] Stack: (0xcf13fe10 to 0xcf140000)
[ 2.331323] fe00: 00000001 00000000 c0c1da10 c0f0ae20
[ 2.339544] fe20: c0bed564 cf168010 00000001 c0c1d8f0 00000001 00000001 00000030 c0f03048
[ 2.347765] fe40: 00000007 00000000 cf168010 c0f1fd70 c0f80038 00000000 c0f1fd70 00000007
[ 2.355985] fe60: cf12e3d8 c05cdc34 cf168010 c0f80034 00000000 c0f80038 00000000 c05cbd9c
[ 2.364206] fe80: cf168010 c0f1fd70 c05cc230 c0f30390 00000000 00000000 c0f303b8 c05cc078
[ 2.372427] fea0: c0f1fd70 cf13fef4 cf168010 00000000 cf13fef4 c05cc230 c0f30390 00000000
[ 2.380646] fec0: 00000000 c0f303b8 cf12e3d8 c05ca02c 00000000 cf03b1dc cf2a23b4 c0f03048
[ 2.388866] fee0: cf168010 00000001 cf168054 c05cbb48 cf168010 cf168010 00000001 c0f03048
[ 2.397088] ff00: cf168010 cf168010 c0f305e8 c05caeac cf168010 c0f30384 c0f30384 c05cb344
[ 2.405308] ff20: c0f303b4 cf03aa80 00000000 cfc6f200 00000000 c0141bc8 cf13e000 c0f13c20
[ 2.413529] ff40: cf03aa80 c0f0d4ac cf03aa94 cf13e000 c0f13c20 c0f0d4c0 c0f0d4ac c01420b8
[ 2.421749] ff60: 00000000 cf12e3c0 cf12e380 cf13e000 00000000 cf03aa80 c0141e48 cf061ed0
[ 2.429970] ff80: cf12e3d8 c0146638 00000000 cf12e380 c01464f8 00000000 00000000 00000000
[ 2.438190] ffa0: 00000000 00000000 00000000 c01010e8 00000000 00000000 00000000 00000000
[ 2.446410] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.454630] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[ 2.462871] [<c046c6e4>] (sysc_probe) from [<c05cdc34>] (platform_drv_probe+0x48/0x98)
[ 2.470836] [<c05cdc34>] (platform_drv_probe) from [<c05cbd9c>] (really_probe+0x1e0/0x348)
[ 2.479147] [<c05cbd9c>] (really_probe) from [<c05cc078>] (driver_probe_device+0x60/0x170)
[ 2.487456] [<c05cc078>] (driver_probe_device) from [<c05ca02c>] (bus_for_each_drv+0x84/0xd0)
[ 2.496028] [<c05ca02c>] (bus_for_each_drv) from [<c05cbb48>] (__device_attach+0xf0/0x15c)
[ 2.504336] [<c05cbb48>] (__device_attach) from [<c05caeac>] (bus_probe_device+0x84/0x8c)
[ 2.512558] [<c05caeac>] (bus_probe_device) from [<c05cb344>] (deferred_probe_work_func+0x64/0x90)
[ 2.521576] [<c05cb344>] (deferred_probe_work_func) from [<c0141bc8>] (process_one_work+0x1c4/0x444)
[ 2.530760] [<c0141bc8>] (process_one_work) from [<c01420b8>] (worker_thread+0x270/0x5cc)
[ 2.538982] [<c01420b8>] (worker_thread) from [<c0146638>] (kthread+0x140/0x184)
[ 2.546422] [<c0146638>] (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c)
[ 2.553674] Exception stack(0xcf13ffb0 to 0xcf13fff8)
[ 2.558750] ffa0: 00000000 00000000 00000000 00000000
[ 2.566969] ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 2.575187] ffe0: 00000000 00000000 00000000 00000000 00000013 00000000
[ 2.581840] Code: e3130004 1a0001a9 e5943014 e0833001 (e593c000)
[ 2.587969] ---[ end trace 26dfa50f46bb5adb ]---


Thanks.
Rgds
Shine