doc: CAN-FD support not in support matrix for STM32 Nucleo G0B1 or G474

[WardBenjamin]

Describe the bug

The STM32G0B1 has two CAN-FD peripherals available. Zephyr already supports one since #54403. Here is the current permalink:

zephyr/boards/arm/nucleo_g0b1re/nucleo_g0b1re.dts

Line 180 in e67b12e

&fdcan1 {

Meanwhile, the "supported features" matrix on the Nucleo G0B1RE page does not list any CAN support.

Environment

• Page: boards/arm/nucleo_g0b1re/doc/index
• Version: main
• SHA-1: 5d5249d

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[WardBenjamin]

Side note: what needs to happen for Zephyr to properly support the second CAN-FD peripheral on this chip? I saw some notes about shared IRQs being an issue here #34963 but it is unclear to me whether that's been resolved in the two years since. EDIT: looks like this is still an open issue #49379? EDIT2: Maybe now this is implemented #61422?

[WardBenjamin]

It looks like this is also an issue on the Nucleo G474 page:

zephyr/boards/arm/nucleo_g474re/nucleo_g474re.dts

Line 207 in e67b12e

&fdcan1 {

[henrikbrixandersen]

Documentation additions: #67430

[henrikbrixandersen]

Side note: what needs to happen for Zephyr to properly support the second CAN-FD peripheral on this chip? I saw some notes about shared IRQs being an issue here #34963 but it is unclear to me whether that's been resolved in the two years since. EDIT: looks like this is still an open issue #49379? EDIT2: Maybe now this is implemented #61422?

This is a separate issue, but shared interrupts are now supported at the architecture level in Zephyr.