Imx 6 custom board booting problem

[Gopiaffluence]

Hi All

We designed a imx6ul custom board with 128MB DDR3L memory. We performed DDR3 stress test and the unit is passing. The board is stopping while booting. The boot log is attached below.

U-Boot 2015.04-dirty (Mar 10 2021 - 16:09:11)

CPU: Freescale i.MX6UL rev1.2 at 396 MHz
CPU: Temperature 41 C
Reset cause: POR
Board: MX6UL 14x14 EVK
I2C: ready
DRAM: 128 MiB
force_idle_bus: sda=0 scl=0 sda.gp=0x1d scl.gp=0x1c
MMC: FSL_SDHC: 0, FSL_SDHC: 1
*** Warning - bad CRC, using default environment

Display: TFT43AB (480x272)
Video: 480x272x24
In: serial
Out: serial
Err: serial
switch to partitions #0, OK
mmc0 is current device
Net: FEC1
Error: FEC1 address not set.

Normal Boot
Hit any key to stop autoboot: 0
switch to partitions #0, OK
mmc0 is current device
switch to partitions #0, OK
mmc0 is current device
reading boot.scr
** Unable to read file boot.scr **
reading zImage
7524472 bytes read in 652 ms (11 MiB/s)
Booting from mmc ...
reading imx6ul-14x14-evk.dtb
37960 bytes read in 22 ms (1.6 MiB/s)
Kernel image @ 0x80800000 [ 0x000000 - 0x72d078 ]
## Flattened Device Tree blob at 83000000
Booting using the fdt blob at 0x83000000
Using Device Tree in place at 83000000, end 8300c447
Modify /soc/aips-bus@02000000/bee@02044000:status disabled
ft_system_setup for mx6

Starting kernel ...

Booting Linux on physical CPU 0x0
Linux version 4.9.88-imx_4.9.88_2.0.0_ga+g5e23f9d61147 (oe-user@oe-host) (gcc version 7.3.0 (GCC) ) #17 SMP PREEMPT Mon Mar 22 14:40:04 IST 21
CPU: ARMv7 Processor [410fc075] revision 5 (ARMv7), cr=10c53c7d
CPU: div instructions available: patching division code
CPU: PIPT / VIPT nonaliasing data cache, VIPT aliasing instruction cache
OF: fdt:Machine model: Freescale i.MX6 UltraLite 14x14 EVK Board
OF: reserved mem: failed to allocate memory for node 'linux,cma'
Memory policy: Data cache writealloc
percpu: Embedded 14 pages/cpu @87ed0000 s26060 r8192 d23092 u57344
Built 1 zonelists in Zone order, mobility grouping off. Total pages: 32512
Kernel command line: console=ttymxc0,115200 root=/dev/mmcblk0p2 rootwait rw
PID hash table entries: 512 (order: -1, 2048 bytes)
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 114316K/131072K available (9216K kernel code, 577K rwdata, 3384K rodata, 1024K init, 474K bss, 16756K reserved, 0K cma-reserved, 0K h)
Virtual kernel memory layout:
vector : 0xffff0000 - 0xffff1000 ( 4 kB)
fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
vmalloc : 0x88800000 - 0xff800000 (1904 MB)
lowmem : 0x80000000 - 0x88000000 ( 128 MB)
pkmap : 0x7fe00000 - 0x80000000 ( 2 MB)
modules : 0x7f000000 - 0x7fe00000 ( 14 MB)
.text : 0x80008000 - 0x80a00000 (10208 kB)
.init : 0x80e00000 - 0x80f00000 (1024 kB)
.data : 0x80f00000 - 0x80f905e0 ( 578 kB)
.bss : 0x80f92000 - 0x81008a78 ( 475 kB)
SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Preemptible hierarchical RCU implementation.
Build-time adjustment of leaf fanout to 32.
RCU restricting CPUs from NR_CPUS=4 to nr_cpu_ids=1.
RCU: Adjusting geometry for rcu_fanout_leaf=32, nr_cpu_ids=1
NR_IRQS:16 nr_irqs:16 16
Switching to timer-based delay loop, resolution 333ns
sched_clock: 32 bits at 3000kHz, resolution 333ns, wraps every 715827882841ns
clocksource: mxc_timer1: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 637086815595 ns
Console: colour dummy device 80x30
Calibrating delay loop (skipped), value calculated using timer frequency.. 6.00 BogoMIPS (lpj=30000)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
CPU: Testing write buffer coherency: ok
/cpus/cpu@0 missing clock-frequency property
CPU0: thread -1, cpu 0, socket 0, mpidr 80000000
Setting up static identity map for 0x80100000 - 0x80100058
Brought up 1 CPUs
SMP: Total of 1 processors activated (6.00 BogoMIPS).
CPU: All CPU(s) started in SVC mode.
devtmpfs: initialized
VFP support v0.3: implementor 41 architecture 2 part 30 variant 7 rev 5
clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns
futex hash table entries: 256 (order: 2, 16384 bytes)
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
cpuidle: using governor menu
hw-breakpoint: found 5 (+1 reserved) breakpoint and 4 watchpoint registers.
hw-breakpoint: maximum watchpoint size is 8 bytes.
imx6ul-pinctrl 20e0000.iomuxc: Invalid fsl,pins property in node /soc/aips-bus@02000000/iomuxc@020e0000/lcdifdatgrp
imx6ul-pinctrl 20e0000.iomuxc: initialized IMX pinctrl driver
mxs-dma 1804000.dma-apbh: initialized
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
i2c i2c-0: IMX I2C adapter registered
i2c i2c-0: can't use DMA, using PIO instead.
i2c i2c-1: IMX I2C adapter registered
i2c i2c-1: can't use DMA, using PIO instead.
Linux video capture interface: v2.00
pps_core: LinuxPPS API ver. 1 registered
pps_core: Software ver. 5.3.6 - Copyright 2005-2007 Rodolfo Giometti <giometti@linux.it>
PTP clock support registered
MIPI CSI2 driver module loaded
imx rpmsg driver is registered.
Advanced Linux Sound Architecture Driver Initialized.
Bluetooth: Core ver 2.22
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP socket layer initialized
Bluetooth: SCO socket layer initialized
clocksource: Switched to clocksource mxc_timer1
VFS: Disk quotas dquot_6.6.0
VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
NET: Registered protocol family 2
TCP established hash table entries: 1024 (order: 0, 4096 bytes)
TCP bind hash table entries: 1024 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 1024 bind 1024)
UDP hash table entries: 256 (order: 1, 8192 bytes)
UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
NET: Registered protocol family 1
RPC: Registered named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
Bus freq driver module loaded
workingset: timestamp_bits=30 max_order=15 bucket_order=0
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
jffs2: version 2.2. (NAND) © 2001-2006 Red Hat, Inc.
fuse init (API version 7.26)
io scheduler noop registered
io scheduler deadline registered
io scheduler cfq registered (default)
imx-weim 21b8000.weim: Driver registered.
imx-sdma 20ec000.sdma: loaded firmware 3.3
2020000.serial: ttymxc0 at MMIO 0x2020000 (irq = 20, base_baud = 5000000) is a IMX
console [ttymxc0] enabled
21e8000.serial: ttymxc1 at MMIO 0x21e8000 (irq = 64, base_baud = 5000000) is a IMX
imx sema4 driver is registered.
[drm] Initialized
[drm] Initialized vivante 1.0.0 20120216 on minor 0
brd: module loaded
loop: module loaded
fsl-quadspi 21e0000.qspi: unrecognized JEDEC id bytes: ff, ff, ff
fsl-quadspi 21e0000.qspi: Freescale QuadSPI probe failed
fsl-quadspi: probe of 21e0000.qspi failed with error -2
spi_gpio spi4: gpio-miso property not found, switching to no-rx mode
m25p80 spi3.0: unrecognized JEDEC id bytes: 00, 00, 00
spi_imx 2014000.ecspi: probed
libphy: Fixed MDIO Bus: probed
vcan: Virtual CAN interface driver
CAN device driver interface
flexcan 2090000.flexcan: device registered (reg_base=889fc000, irq=26)
flexcan 2094000.flexcan: device registered (reg_base=88a04000, irq=27)
2188000.ethernet supply phy not found, using dummy regulator
pps pps0: new PPS source ptp0
fec 2188000.ethernet (unnamed net_device) (uninitialized): Invalid MAC address: 00:00:00:00:00:00
fec 2188000.ethernet (unnamed net_device) (uninitialized): Using random MAC address: ee:89:f9:5b:e8:f1
usbcore: registered new interface driver kaweth
pegasus: v0.9.3 (2013/04/25), Pegasus/Pegasus II USB Ethernet driver
usbcore: registered new interface driver pegasus
usbcore: registered new interface driver rtl8150
usbcore: registered new interface driver r8152
usbcore: registered new interface driver asix
usbcore: registered new interface driver ax88179_178a
usbcore: registered new interface driver cdc_ether
usbcore: registered new interface driver net1080
usbcore: registered new interface driver cdc_subset
usbcore: registered new interface driver zaurus
usbcore: registered new interface driver cdc_ncm
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-mxc: Freescale On-Chip EHCI Host driver
usbcore: registered new interface driver usb-storage
usbcore: registered new interface driver usb_ehset_test
2184800.usbmisc supply vbus-wakeup not found, using dummy regulator
2184000.usb supply vbus not found, using dummy regulator
2184200.usb supply vbus not found, using dummy regulator

Could you please help us in solving the problem

[Gopiaffluence]

Hi Igor,

Thank you for the input. We tried reducing the CMA size from 0x14000000 to 0x5000000. We are getting the same error related to CMA and getting struck at the same location.

If we reduce the CMA size to less than 0x5000000 then we are getting an error of CMA alignment problem.

Could you please help us on this.

[igorpadykov]

Hi Anne

from log:  "failed to allocate memory for node 'linux,cma'.."

one can try to decrease cma size in dts

https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm/boot/dts/imx6ul-14x14-evk.dts?h=i...

Best regards
igor