revert to MSRV 1.59 + use optional critical-section

Author: almindor

.github/workflows/ci.yaml

@@ -11,8 +11,8 @@ jobs:
     continue-on-error: ${{ matrix.experimental || false }}
     strategy:
       matrix:
-        # All generated code should be running on stable now, MRSV is 1.60.0
-        rust: [nightly, stable, 1.60.0]
+        # All generated code should be running on stable now, MRSV is 1.59.0
+        rust: [nightly, stable, 1.59.0]
 
         include:
           # Nightly is only for reference and allowed to fail

CHANGELOG.md

@@ -17,7 +17,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 ### Changed
 
 - Update `riscv` dependency to version 0.8
-- Update Minimum Supported Rust Version to 1.60
 - Regenerate code with `svd2rust` v0.19.0
 
 ### Fixed

Cargo.toml

@@ -7,16 +7,13 @@ categories = ["embedded", "hardware-support", "no-std"]
 description = "With svd2rust generated peripherals for Freedom E310 MCU's."
 keywords = ["riscv", "register", "peripheral"]
 license = "ISC"
-rust-version = "1.60"
+rust-version = "1.59"
 
 [dependencies]
-critical-section = "1.1.1"
+critical-section = { version = "1.1.1", optional = true }
 vcell = "0.1.3"
-riscv = { version = "0.10.1", features = ["critical-section-single-hart"] }
 
 [features]
-default = ["critical-section"]
-critical-section = []
 rt = []
 g002 = []
 

README.md

@@ -12,7 +12,7 @@ This project is developed and maintained by the [RISC-V team][team].
 
 ## Minimum Supported Rust Version (MSRV)
 
-This crate is guaranteed to compile on stable Rust 1.60.0 and up. It *might*
+This crate is guaranteed to compile on stable Rust 1.59.0 and up. It *might*
 compile with older versions but that may change in any new patch release.
 
 ## Requirements

src/lib.rs

@@ -1,6 +1,5 @@
 #![doc = "Peripheral access API for FE310 microcontrollers (generated using svd2rust v0.26.0 ( ))\n\nYou can find an overview of the generated API [here].\n\nAPI features to be included in the [next]
 svd2rust release can be generated by cloning the svd2rust [repository], checking out the above commit, and running `cargo doc --open`.\n\n[here]: https://docs.rs/svd2rust/0.26.0/svd2rust/#peripheral-api\n[next]: https://github.com/rust-embedded/svd2rust/blob/master/CHANGELOG.md#unreleased\n[repository]: https://github.com/rust-embedded/svd2rust"]
-#![deny(const_err)]
 #![deny(dead_code)]
 #![deny(improper_ctypes)]
 #![deny(missing_docs)]

update.sh

@@ -2,7 +2,7 @@
 set -x
 set -e
 
-# used svd2rust v0.19.0
+# used svd2rust v0.26.0
 rm -rf src
 mkdir src
 svd2rust --target riscv -g -i e310x.svd