Add support for 80Mhz psram, selected using 'psram-80mhz' feature

[yanshay]

Added support for 80Mhz PSRAM Bus as discussed in #1069

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• The code compiles without errors or warnings.
• All examples work.
• cargo fmt was run.
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• You add a description of your work to this PR.
• You added proper docs for your newly added features and code.

[bjoernQ]

Thanks! This seems to work fine for me

However, the new features need to get documented here:

esp-hal/esp32s3-hal/src/lib.rs

Lines 8 to 45 in 6afc988

	//! ### Cargo Features
	//!
	//! - `async` - Enable support for asynchronous operation, with interfaces
	//! provided by [embedded-hal-async] and [embedded-io-async]
	//! - `debug` - Enable debug features in the HAL (used for development)
	//! - `defmt` - Enable [`defmt::Format`] on certain types
	//! - `eh1` - Implement the traits defined in the `1.0.0-xxx` pre-releases of
	//! [embedded-hal], [embedded-hal-nb], and [embedded-io]
	//! - `embassy` - Enable support for [embassy], a modern asynchronous embedded
	//! framework. One of `embassy-time-*` features must also be enabled when
	//! using this feature.
	//! - `embassy-executor-interrupt` - Use the multicore-aware interrupt-mode
	//! embassy executor
	//! - `embassy-executor-thread` - Use the multicore-aware thread-mode embassy
	//! executor
	//! - `embassy-time-systick` - Enable the [embassy] time driver using the
	//! `SYSTIMER` peripheral. The `SYSTIMER` peripheral has three alarms
	//! available for use
	//! - `embassy-time-timg0` - Enable the [embassy] time driver using the `TIMG0`
	//! peripheral. The `TIMG0` peripheral has two alarms available for use
	//! - `embassy-integrated-timers` - Uses hardware timers as alarms for the
	//! executors. Using this feature limits the number of executors to the number
	//! of hardware alarms provided by the time driver
	//! - `embassy-generic-queue-N` (where `N` can be `8`, `16`, `32`, `64` or
	//! `128`) - Use a generic timer queue of size `N` for the executors' timer
	//! queues. Using this feature can expand the number of executors you can use
	//! to `N`
	//! - `log` - enable log output using the `log` crate
	//! - `opsram-2m` - Use externally connected Octal PSRAM (2MB)
	//! - `opsram-4m` - Use externally connected Octal PSRAM (4MB)
	//! - `opsram-8m` - Use externally connected Octal PSRAM (8MB)
	//! - `opsram-16m`- Use externally connected Octal PSRAM (16MB)
	//! - `psram-2m` - Use externally connected PSRAM (2MB)
	//! - `psram-4m` - Use externally connected PSRAM (4MB)
	//! - `psram-8m` - Use externally connected PSRAM (8MB)
	//! - `rt` - Runtime support
	//! - `ufmt` - Implement the [`ufmt_write::uWrite`] trait for the UART driver
	//! - `vectored` - Enable interrupt vectoring

Also, we should mention there that it's for qspi RAM only, currently

[yanshay]

Also, we should mention there that it's for qspi RAM only, currently

I can add it to the qspi as well, it should work. Where I read about this it was in context of qspi, but I can't test it to work. To add it there as well?

[bjoernQ]

Also, we should mention there that it's for qspi RAM only, currently

I can add it to the qspi as well, it should work. Where I read about this it was in context of qspi, but I can't test it to work. To add it there as well?

Yes, that would also be good. I don't think I have hardware to test 80MHz OSPI but the code would support it

[yanshay]

Added 80Mhz suppoort to octal psram and documetnation to lib.rs

[bjoernQ]

LGTM - Thanks!