Dear Volumionauts,
Folks at Rasperry showing a new stepping of the main BCM2712 chip in their blog post:
https://www.raspberrypi.com/news/2gb-raspberry-pi-5-on-sale-now-at-50/
Beside reduced power usage, which is welcomed, it also changes low level kernel functions including I2C (various HATs) , vc4 (HDMI audio), HW identifier; just to mention few.
The difference on the die:
| Raspbery Pi 5 2GB | Raspbery Pi 5 4GB | Raspbery Pi 5 8GB |
|---|---|---|
| 2712ZPFKSB00D0T | 2712ZPKFSB00C1T | 2712ZPKFSB00C1T |
| BCM2712 D0 | BCM2712 C1 | BCM2712 C1 |
The new BCM2712D0 starts from this kernel 6.6 commit:
There are no upstream backport plans to the kernel lower than 6.6. This is quite disappointing as the kernel 6.1.69+ is currently at the hart of the Volumio OS.
Devs are already discussing the kernel bump to 6.6; which is not a trivial endeavour. Beside internal audio tweaks, such change causes a domino effect across plugins relying on GPIOs like:
- Amplifier Switch
- Audiophonics Evo Sabre
- Audiophonics ON/OFF
- GPIO Buttons
- GPIO Control
- IR Activity LED
- IR Remote Controller
- MPD_OLED
- Pirate Audio
- RemotePi
- Rotary Encoder II
The list is incomplete yet and very likely more to come.
Please stay tuned to this thread with further details to follow.
Kind Regards,