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Author Topic: Pi4  (Read 1731 times)

Offline TimJ

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Pi4
« on: June 24, 2019, 01:18:42 AM »
Pi 4 has been released and is available.

Key features 1.5G 4 core Arm8
1,2, or 4Gb memory
2 x USB 2
2 x USB 3
Native Gigabit ethernet
2 x HDMI

https://www.raspberrypi.org/products/raspberry-pi-4-model-b/

I have a 2 GByte one on order for delivery tomorrow. The next challenge will be to get piCore on it.

Tim

Offline Juanito

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Re: Pi4
« Reply #1 on: June 24, 2019, 02:47:16 AM »
Do you know which kernel versions are known to work with it?

Offline core-user

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Re: Pi4
« Reply #2 on: June 24, 2019, 03:28:03 AM »
N.B. Those 2 HDMI are micro sized sockets.
AMD, ARM, & Intel.

Offline TimJ

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Re: Pi4
« Reply #3 on: June 24, 2019, 03:41:41 AM »
Do you know which kernel versions are known to work with it?

I have just downloaded the latest Raspbian Lite that supports it and it reports

Code: [Select]
pi@raspberrypi:/ $ uname -a
Linux raspberrypi 4.19.50-v7+ #896 SMP Thu Jun 20 16:11:44 BST 2019 armv7l GNU/Linux
pi@raspberrypi:/ $ vcgencmd version
Jun 20 2019 16:12:41
Copyright (c) 2012 Broadcom
version a59fb7a74180be0111dbc5c18a37ec6df86f14a3 (clean) (release) (start)

It will certainly need a whole lot mode drivers.

Tim

Offline TimJ

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Re: Pi4
« Reply #4 on: June 24, 2019, 03:55:41 AM »
Looking in the boot partition there are 3 kernel

kernel.img  - Linux version 4.19.50+
kernel7l.img - Linux version 4.19.50-v7l+
kernel7.img - Linux version 4.19.50-v7+


Offline Paul_123

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Re: Pi4
« Reply #5 on: June 24, 2019, 01:19:26 PM »
Yuck, I was afraid of that.......that means another 10mb or so on the boot partition.   And a whole set of module extensions to manage.

Here is the new defconfig they are using.   https://github.com/raspberrypi/linux/blob/rpi-4.19.y/arch/arm/configs/bcm2711_defconfig

« Last Edit: June 24, 2019, 01:24:03 PM by Paul_123 »

Offline TimJ

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Re: Pi4
« Reply #6 on: June 24, 2019, 02:43:02 PM »
Yes a pain.

If I get a chance I will try and get piCore booting on it.

They are clearly selling well, CPC had 3000 in stock at 8:00am - sold out by lunchtime.

The spec looks good, it looks as if they have sorted out the I/O bottleneck of Pi3, I have an Odroid as a NAS and the performance is great, but this Pi should compete.

Any chance of you Busybox config? - Thanks

Tim.


Offline Paul_123

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Re: Pi4
« Reply #7 on: June 24, 2019, 04:23:49 PM »
I had to order mine from Canakit in Canada.....all the USA distributors were out by the time I could get online  >:(.

Ya, on busybox, I got sidetracked.

Offline bmarkus

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Re: Pi4
« Reply #8 on: June 24, 2019, 10:16:05 PM »
My RPi4 will arrive this week.
Béla
Ham Radio callsign: HA5DI

"Amateur Radio: The First Technology-Based Social Network."

Offline TimJ

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Re: Pi4
« Reply #9 on: June 25, 2019, 07:54:15 AM »
Bela,

It is good to have you around. I hope everything is well with you.

I hope that you do not mind that I have tried to get piCore development going again.

Tim.


Offline bmarkus

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Re: Pi4
« Reply #10 on: June 25, 2019, 11:08:21 AM »
Hi Tim

thanks for asking. Everything fine, just had hacktic times with my main job not leaving time for piCore. Now it is a bit better. Just started to make a new version last week and I have seen RPI4 is coming. One side it is great, on the other hand it must be handled is causing some delay again.

If we can work in a team including Paul and anyone else willing to join we can make it live again, but too much for one person.


Regards,

Béla
Béla
Ham Radio callsign: HA5DI

"Amateur Radio: The First Technology-Based Social Network."

Offline TimJ

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Re: Pi4
« Reply #11 on: June 25, 2019, 04:30:17 PM »
Bela,

That sound great, i fully agree that it is all too much for 1 person to do. We need to sort out how to organize things.

On the Pi4 I have it booting into piCore

Code: [Select]
tc@box:~$ uname -a
Linux box 4.19.56-piCore-v7l #1 SMP Tue Jun 25 19:10:37 BST 2019 armv7l GNU/Linux
tc@box:~$ cat /sys/firmware/devicetree/base/model
Raspberry Pi 4 Model B Rev 1.1
tc@box:~$

I have other pressing work to do so can't get back to it until the weekend

Tim.

Offline bmarkus

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Re: Pi4
« Reply #12 on: June 26, 2019, 12:38:23 AM »




Béla
Ham Radio callsign: HA5DI

"Amateur Radio: The First Technology-Based Social Network."

Offline geev03

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Re: Pi4
« Reply #13 on: June 26, 2019, 10:01:29 AM »
" bootcode.bin is not used on the Raspberry Pi 4, because it has been replaced by boot code in the onboard EEPROM 3."https://www.raspberrypi.org/documentation/hardware/raspberrypi/booteeprom.md

Offline geev03

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Re: Pi4
« Reply #14 on: June 26, 2019, 10:15:59 AM »
Got my Pi4B (4GB RAM) yesterday. 'Raspian Buster' appears to be not finished, still 32bit ..
What I thought was an error turned out to be " in the mainline Linux kernel device tree files - all Pis report as being BCM2835, whether they actually have BCM2835, BCM2836, BCM2837, or BCM2838/BCM2711 in."https://github.com/raspberrypi/linux/blob/rpi-4.19.y/arch/arm/boot/dts/bcm283x.dtsi#L19