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Merged
merged 14 commits into from
Feb 24, 2025
Merged

Add more registers, and MPU support #7

merged 14 commits into from
Feb 24, 2025

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jonathanpallant
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Updates #4 to add a bunch more registers.

I didn't do this with a macro to allow us to special-case each register in future, as demand requires.

  • I added a PMSAv8-32 EL1 MPU driver. In doing so I realised a bunch of registers were Armv8-R only, so I moved them.
  • Added support for Armv7-R MPUs. Similar, but different, to Armv8-R MPUs.
  • I added a Generic Timer driver, and tested in on QEMU's Cortex-R52 machine. I'm not aware of a Armv7-R processor that has the Generic Timer, but there are some Armv7-A processors that do.

jonathanpallant and others added 14 commits February 18, 2025 18:34
@jonathanpallant
Abstract the MCR and MRC operations.
ddf15c5
@thejpster
Add a CPSR write function.
763daec 
Comes with big scary warning sign though.
@thejpster
Add a lot more registers.
cbbc355 
The values are taken from the Cortex-R52 Reference Manual. We
only have basic reads/writes for the new ones - I haven't drilled
down into the bitfields.
@thejpster
Ensure we build with all and no features.
bfb7fc3
@thejpster
Remove duplicates
3d4d7eb
@thejpster
Add support for PMSAv8-32 EL1 MPU
f6dfa29
@thejpster
Include pmsav8 module for tests.
7dc376b
@thejpster
Implement ARMv7-R MPU support
40b16cd
@thejpster
SCTRL.BR is now on in registers.rs example.
9c13ae6
@thejpster
Make CacheablePolicy a bitenum.
9ac645c 
Allows me to drop the decode function.
@thejpster
Add a generic timer driver.
5a20108
@thejpster
Fix clippy lints
bff4c63
@thejpster
Allow generic_timer example to build for Armv7-R.
50b993a 
It just stubs out all the timer code.
@thejpster
Fix unit tests.
54e68e3 
The unit test code needs to see all the modules.
@jonathanpallant jonathanpallant requested a review from a team February 24, 2025 11:11
@jonathanpallant
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Replaces #6, which was merged into master after the main branch was changed to main :/

@jonathanpallant jonathanpallant merged commit 016cdf9 into rust-embedded:main Feb 24, 2025
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@jonathanpallant @thejpster