Kernel Stops booting in Starting kernel ...

keshavakumarb — Mon, 24 Jun 2019 13:41:57 GMT

I am having Custom i.MX6ULL based board(NAND boot) which is currently having 4.1.15 Kernel . Now I am trying to port Latest NXP community BSP(https://www.nxp.com/docs/en/user-guide/i.MX_Yocto_Project_User%27s_Guide_Linux.pdf ). This has following Items :

Yocto Rocko 2.4
Linux Kernel 4.9.88
Uboot 2017.03

My plan is to retain older Uboot and just change Linux kernel and Rootfs. For this I ported My device tree(DTB) , defconfig and board file related to my board. But unfortunately Booting stops in "Starting kernel ..."

U-Boot 2015.04 (Jun 17 2019 - 16:13:02)

CPU:   Freescale i.MX?? rev1.1 at 396 MHz
CPU:   Temperature 45 C
Reset cause: POR
Board: i.MX6UL iW-RAINBOW-G18M-SM
Boot Device: NAND
I2C:   ready
DRAM: 256 MiB
PMIC: PFUZE300 DEV_ID=0x31 REV_ID=0x11
NAND: 1024 MiB
MMC:   FSL_SDHC: 0
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial

Board Info:
        BSP Version     : iW-PRFYB-SC-01-R1.0-REL1.0-Linux4.1.15
        SOM Version     : iW-PRFYB-AP-01-R1.x
        CPU Unique ID   : 0x453b91d260435a43

Net:   FEC0
Normal Boot
Hit any key to stop autoboot: 0
iWave-G26P> setenv bootcmd 'nand read ${loadaddr} 0xA00000 0x1000000;nand read ${fdt_addr} 0x1A00000 0x1000000;bootz ${loadaddr} - ${fdt_addr}'
iWave-G26P>
iWave-G26P>
iWave-G26P> boot

NAND read: device 0 offset 0xa00000, size 0x1000000
16777216 bytes read: OK

NAND read: device 0 offset 0x1a00000, size 0x1000000
16777216 bytes read: OK
Kernel image @ 0x80800000 [ 0x000000 - 0x49ecf0 ]
## Flattened Device Tree blob at 83000000
   Booting using the fdt blob at 0x83000000
   Using Device Tree in place at 83000000, end 8300ab09

Starting kernel ...

I have Few doubts here. I am using older version of Uboot

Whether using Older version of Uboot is OK?
How can I debug more on "Starting kernel ..." .

Thanks in Advance.

Keshava Kumar B

Re: Kernel Stops booting in Starting kernel ...

igorpadykov — Tue, 25 Jun 2019 00:22:38 GMT

Hi Keshava

>My plan is to retain older Uboot and just change Linux kernel and Rootfs.

this may be issue. Recommendation is to use nxp linux

freescale\dts\boot\arm64\arch - linux-imx - i.MX Linux kernel

and corresponding with it imx_v2017.03_4.9.88_2.0.0_ga uboot

uboot-imx - i.MX U-Boot

Note, community bsps are not supported by nxp, issue may be posted on

meta-fsl-arm mailing list:
meta-freescale Info Page

Best regards
igor
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