Re: Raspberry Pi 3B Slow Boot-up

On 2022-Mar-14, at 02:55, Archimedes Gaviola <[email protected]> wrote:

> In the default config.txt file there is [pi4] line. If I'm going to remove this [pi4] line, the boot-up process is very slow. Slow in a sense that some extended time is observed as compared to the default. I already tested emphasizing the boot_delay=1 but to no avail. The reason why I removed it is because I want to change the settings of the HDMI display resolution as changes will not take effect with the [pi4] line in RPi 3B.
> 
> With 14.0-CURRENT (February 24, 2022 snapshot) I have described my resolution here https://lists.freebsd.org/archives/freebsd-arm/2022-February/001070.html however with the latest 14.0-CURRENT (March 10, 2022 snapshot) it's no longer possible. Any idea what's going on?
> 
> Below is the default config.txt and my current config.txt for reference.
> 
> freebsd@generic:~ % cat /boot/msdos/config.txt
> [all]
> arm_64bit=1
> dtparam=audio=on,i2c_arm=on,spi=on
> dtoverlay=mmc
> dtoverlay=disable-bt
> device_tree_address=0x4000
> kernel=u-boot.bin
> 
> [pi4]
> hdmi_safe=1
> armstub=armstub8-gic.bin
> 
> freebsd@generic:~ % cat /boot/msdos/config.txt
> [all]
> arm_64bit=1
> dtparam=audio=on,i2c_arm=on,spi=on
> dtoverlay=mmc
> dtoverlay=disable-bt
> device_tree_address=0x4000
> kernel=u-boot.bin
> 
> hdmi_group=2
> hdmi_mode=11
> armstub=armstub8-gic.bin

armstub8-gic.bin is specific to the BCM2711 and will not
work for the RPi3, as I understand.

armstub=armstub8.bin is the default and is what was being
used for the RPi3 when the [pi4] was in place.

You have the option of listing a [pi3] section last
(after the [pi4] section). To have a [pi3] section
be last, it should have an explicit
armstub=armstub8.bin line.

Listing older RPi* models last is done because some older
RPi models ignore the [] notation and listing things last
overrides earlier assignments, in this case overriding
assignments for newer models. It is a safe notational
ordering convention, even for models that do support
the [] notation sufficiently.

If one depended on RPi3 models processing [] notation,
if it does, then another option would have been to move
the [rpi4] line to be just before the
armstub=armstub8-gic.bin line, causing the RPi3 to skip
the assignment and use the default.

===
Mark Millard
marklmi at yahoo.com