Some boot_stage2 of RP2350 still reference to SSI and its registers

[matsobdev]

Those files are:
https://github.com/raspberrypi/pico-sdk/blob/master/src/rp2350/boot_stage2/boot2_at25sf128a.S
https://github.com/raspberrypi/pico-sdk/blob/master/src/rp2350/boot_stage2/boot2_is25lp080.S
https://github.com/raspberrypi/pico-sdk/blob/master/src/rp2350/boot_stage2/boot2_w25x10cl.S

I guess, those devices are not commonly used and I think hardware RP2350's flash support might take care of them or at least boot2_generic_03h will be compatible, so I would call it a minor issue.

[lurch]

I guess this wasn't noticed earlier, because RP2350 builds don't use a boot_stage2 by default; you have to explicitly request it.

[matsobdev]

I've just noticed, they have:

// todo port to QMI

so I think it is on somebody's mind already :D

[michael-ring]

boot_stage2 was used as default for RP2040, what is used now for RP2350? Am 05.12.24 um 15:26 schrieb Andrew Scheller:

…

I guess this wasn't noticed earlier, because RP2350 builds don't use a |boot_stage2| by default; you have to explicitly request it. — Reply to this email directly, view it on GitHub <#2126 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABP5KU55IMHSHZPFJNXU3DT2EBPBPAVCNFSM6AAAAABTCSP27WVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDKMRQGQ3TCNBTGY>. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[lurch]

boot_stage2 was used as default for RP2040, what is used now for RP2350?

On page 649 of https://datasheets.raspberrypi.com/pico/raspberry-pi-pico-c-sdk.pdf in the release-notes for SDK 2.0.0 it says:

boot_stage2

• There are now separate implementations for RP2040 and RP2350.
• A boot_stage2 is not needed on RP2350, but one can be included via the define PICO_EMBED_XIP_SETUP=1.

You'll probably want to have a look at Chapter 5 and Section 12.14 of https://datasheets.raspberrypi.com/rp2350/rp2350-datasheet.pdf for more information.