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Posted to commits@nuttx.apache.org by "linguini1 (via GitHub)" <gi...@apache.org> on 2026/05/02 15:25:55 UTC
[I] [FEATURE] Re-usable PL011 UART driver [nuttx]
linguini1 opened a new issue, #18836:
URL: https://github.com/apache/nuttx/issues/18836
### Is your feature request related to a problem? Please describe.
Currently, the PL011 UART driver is not very flexible. All boards that use it must use the common Kconfig options which limit you to 3 UART interfaces. All code is handled within the driver, and expects that each UART interface has its own unique interrupt.
This does not apply to the Pi4B, which has 5 PL011 UART interfaces and they all share one common interrupt handler. In order to use the PL011 driver with the Pi4B, this driver needs to be modified.
### Describe the solution you'd like
Modify the PL011 UART driver so that individual boards can use the C API to:
- Register as many UARTs as they need
- Control interrupt registration
- Define their own Kconfig options for selecting active UART interfaces/options
### Describe alternatives you've considered
_No response_
### Verification
- [x] I have verified before submitting the report.
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Re: [I] [FEATURE] Re-usable PL011 UART driver [nuttx]
Posted by "raiden00pl (via GitHub)" <gi...@apache.org>.
raiden00pl commented on issue #18836:
URL: https://github.com/apache/nuttx/issues/18836#issuecomment-4366167355
the same applies to 16550 UART driver
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Re: [I] [FEATURE] Re-usable PL011 UART driver [nuttx]
Posted by "linguini1 (via GitHub)" <gi...@apache.org>.
linguini1 commented on issue #18836:
URL: https://github.com/apache/nuttx/issues/18836#issuecomment-4366194297
> the same applies to 16550 UART driver
Maybe we can open a separate issue for that; right now I'm just focused on PL011 to get the Pi interfaces up.
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