wrong OTP for pi4?

[ValentineK]

Hi

I have two Pi4 absolutely same with absolutely same SSD USB adapters and same SSDs.
I am trying to boot from SDcard but having SSD connected via USB adapter
It looks like it should work by default. First Pi is working absolutely fine but second Pi stucks on boot. Unfortunately second Pi is remote, and I cannot see the screen.

First look gave this:
When SSD is attached and SSD has as minimum one partition pi does not boot
When SSD is attached and has no partitions pi boots normally
When SSD is not attached pi boots normally

so it looks like it is trying to boot from SSD partition first on failing pi.
I looked deeper and have found difference between these Pi`s - otp boot parameter is different:

first_pi:~ $ vcgencmd otp_dump | grep 17
17:000008b0
second_pi:~ $ vcgencmd otp_dump | grep 17
17:000808b0

I tried to play with parameters on /boot/config.txt but it does not look that it changes a much to OTP

could you please give a hint how to change this OTP parameter or any direction should I dig?

[cleverca22]

do you have access to a serial adapter?
what does it show on the serial port while booting?

[dividuum]

I looked deeper and have found difference between these Pi`s - otp boot parameter is different:

I'm not sure if the OTP settings have any effect on the boot process. The Pi4 uses the eeprom for those settings. Have a look at the output of:

Code: Select all

vcgencmd bootloader_config

See also https://www.raspberrypi.org/documentati ... _config.md

Additionally

Code: Select all

vcdbg log msg

might show a difference.

[cleverca22]

the only thing the OTP really does on a 4, is control its ability to boot from the EEPROM, so you can possibly brick it if you change register 17

i believe the firmware understands that, and will refuse to program reg17 with the old config flags

[ValentineK]

the only thing the OTP really does on a 4, is control its ability to boot from the EEPROM, so you can possibly brick it if you change register 17

i believe the firmware understands that, and will refuse to program reg17 with the old config flags

I see, but why its different? Could be that previous owner made changes to it. So I would take a risk to change it to state of correctly working pi.

do you have access to a serial adapter?
what does it show on the serial port while booting?

unfortunately no, I do not have atm

I'm not sure if the OTP settings have any effect on the boot process. The Pi4 uses the eeprom for those settings. Have a look at the output of:

Code: Select all

vcgencmd bootloader_config

See also https://www.raspberrypi.org/documentati ... _config.md

Additionally

Code: Select all

vcdbg log msg

might show a difference.

both pi

Code: Select all

pi@raspberrypi:~ $ vcgencmd bootloader_config
BOOT_UART=0
WAKE_ON_GPIO=1
POWER_OFF_ON_HALT=0

failing:

Code: Select all

pi@raspberrypi:~ $ sudo vcdbg log msg
debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory(2)

002862.767: arasan: arasan_emmc_open
002864.941: arasan: arasan_emmc_set_clock C0: 0x00000000 C1: 0x000e7187 emmc: 250000000 actual: 200000 div: 0x00000271 target: 200000 min: 100000 max: 400000 delay: 10
002981.709: arasan: arasan_emmc_set_clock C0: 0x00000000 C1: 0x000e7187 emmc: 250000000 actual: 200000 div: 0x00000271 target: 200000 min: 100000 max: 400000 delay: 10
002988.864: arasan: arasan_emmc_set_clock C0: 0x00000f00 C1: 0x000ec2c7 emmc: 250000000 actual: 129937 div: 0x000003c2 target: 130000 min: 100000 max: 400000 delay: 15
003032.333: arasan: arasan_emmc_set_clock C0: 0x00000f06 C1: 0x000e0307 emmc: 250000000 actual: 41666666 div: 0x00000003 target: 40000000 min: 0 max: 40000000 delay: 1
003322.152: brfs: File read: /mfs/sd/config.txt
003330.788: brfs: File read: 1836 bytes
003355.817: brfs: File read: /mfs/sd/config.txt
003837.143: gpioman: gpioman_get_pin_num: pin DISPLAY_DSI_PORT not defined
003839.637: *** Restart logging
003839.677: brfs: File read: 1836 bytes
003843.529: hdmi: HDMI:hdmi_get_state is deprecated, use hdmi_get_display_state instead
003846.941: hdmi: HDMI:hdmi_get_state is deprecated, use hdmi_get_display_state instead
003846.975: HDMI0: hdmi_pixel_encoding: 300000000

003846.989: HDMI1: hdmi_pixel_encoding: 300000000

003857.423: brfs: File read: /mfs/sd/bcm2711-rpi-4-b.dtb
003857.465: Loading 'bcm2711-rpi-4-b.dtb' to 0x100 size 0xa01c
004216.724: brfs: File read: 40988 bytes
004219.117: brfs: File read: /mfs/sd/config.txt
004219.617: dtparam: audio=on
004266.552: brfs: File read: 1836 bytes
004281.599: brfs: File read: /mfs/sd/overlays/vc4-fkms-v3d.dtbo
004357.158: Loaded overlay 'vc4-fkms-v3d'
004518.662: brfs: File read: 1255 bytes
004520.572: brfs: File read: /mfs/sd/cmdline.txt
004520.633: Read command line from file 'cmdline.txt':
004520.670: 'console=serial0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait'
006116.881: brfs: File read: 115 bytes
006579.524: brfs: File read: /mfs/sd/kernel7l.img
006579.564: Loading 'kernel7l.img' to 0x8000 size 0x57d910
006579.602: Device tree loaded to 0x2eff5a00 (size 0xa511)
006584.032: gpioman: gpioman_get_pin_num: pin SDCARD_CONTROL_POWER not defined
008756.890: vchiq_core: vchiq_init_state: slot_zero = 0xded80000, is_master = 1
011833.140: brfs: File read: 5757200 bytes

working:

Code: Select all

002785.774: arasan: arasan_emmc_open
002787.947: arasan: arasan_emmc_set_clock C0: 0x00000000 C1: 0x000ef447 emmc: 200000000 actual: 200000 div: 0x000001f4 target: 200000 min: 100000 max: 400000 delay: 10
002904.697: arasan: arasan_emmc_set_clock C0: 0x00000000 C1: 0x000ef447 emmc: 200000000 actual: 200000 div: 0x000001f4 target: 200000 min: 100000 max: 400000 delay: 10
002911.851: arasan: arasan_emmc_set_clock C0: 0x00000f00 C1: 0x000e01c7 emmc: 200000000 actual: 130039 div: 0x00000301 target: 130000 min: 100000 max: 400000 delay: 15
002968.046: arasan: arasan_emmc_set_clock C0: 0x00000f06 C1: 0x000e0307 emmc: 200000000 actual: 33333333 div: 0x00000003 target: 40000000 min: 0 max: 40000000 delay: 1
003239.216: brfs: File read: /mfs/sd/config.txt
003239.951: brfs: File read: 1784 bytes
003302.985: brfs: File read: /mfs/sd/config.txt
003503.947: gpioman: gpioman_get_pin_num: pin DISPLAY_DSI_PORT not defined
003506.428: *** Restart logging
003506.468: brfs: File read: 1784 bytes
003510.248: hdmi: HDMI:hdmi_get_state is deprecated, use hdmi_get_display_state instead
003544.900: HDMI0: hdmi_pixel_encoding: 300000000

003544.912: HDMI1: hdmi_pixel_encoding: 300000000

003547.948: brfs: File read: /mfs/sd/cmdline.txt
003548.007: Read command line from file 'cmdline.txt':
003548.038: 'console=serial0,115200 console=tty1 root=PARTUUID=6c586e13-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait'
003552.561: brfs: File read: 121 bytes
003557.477: brfs: File read: /mfs/sd/bcm2711-rpi-4-b.dtb
003557.513: Loading 'bcm2711-rpi-4-b.dtb' to 0x100 size 0x9e6f
003779.715: brfs: File read: 40559 bytes
003783.996: brfs: File read: /mfs/sd/config.txt
003784.863: dtparam: audio=on
003827.161: brfs: File read: 1784 bytes
003847.163: brfs: File read: /mfs/sd/overlays/vc4-fkms-v3d.dtbo
003914.292: Loaded overlay 'vc4-fkms-v3d'
005533.101: brfs: File read: 1255 bytes
006566.618: brfs: File read: /mfs/sd/kernel7l.img
006566.701: Loading 'kernel7l.img' to 0x8000 size 0x55e088
006566.799: Device tree loaded to 0x2eff5c00 (size 0xa3c4)
006569.555: gpioman: gpioman_get_pin_num: pin SDCARD_CONTROL_POWER not defined
009379.663: vchiq_core: vchiq_init_state: slot_zero = 0xded80000, is_master = 1
009383.607: hdmi: HDMI:hdmi_get_state is deprecated, use hdmi_get_display_state instead
009390.888: TV service:host side not connected, dropping notification 0x00000002, 0x00000001, 0x00000010
012355.488: brfs: File read: 5628040 bytes
012998.679: TV service:host side not connected, dropping notification 0x00000008, 0x00000004, 0x00000001

debug_sym: vc_mem_copy: Unable to open '/dev/fb0': No such file or directory does not looks critical.
content of the cmdline.txt (root is different) is a result of trying to play with this value, but do not give any difference, because I believe that problem is /boot mount

[6by9]

If you're still getting that error message then your image is antique and I'm surprised it works at all. The message was removed in Jan 2019 https://github.com/raspberrypi/userland ... cd9609bb34

[cleverca22]

the only thing the OTP really does on a 4, is control its ability to boot from the EEPROM, so you can possibly brick it if you change register 17

i believe the firmware understands that, and will refuse to program reg17 with the old config flags

I see, but why its different? Could be that previous owner made changes to it. So I would take a risk to change it to state of correctly working pi.

the limited rpi4 docs i do have (which all come from reverse engineering) dont say what the changed bit does, so i have no clue what side-effects it will have

but if your seeing a rainbow screen, then its pretty much past what the OTP and SPI are responsible for