New VA108xx Rust workspace structure + dependency updates

- The workspace is now a monorepo without submodules. The HAL, PAC and BSP
  are integrated directly
- Update all dependencies: embedded-hal v1 and RTIC v2

va108xx-hal/src/sysconfig.rs

@@ -0,0 +1,56 @@
+use crate::{pac, PeripheralSelect};
+
+#[derive(PartialEq, Eq, Debug)]
+pub struct InvalidounterResetVal(pub(crate) ());
+
+/// Enable scrubbing for the ROM
+///
+/// Returns [`UtilityError::InvalidCounterResetVal`] if the scrub rate is 0
+/// (equivalent to disabling) or larger than 24 bits
+pub fn enable_rom_scrubbing(
+    syscfg: &mut pac::Sysconfig,
+    scrub_rate: u32,
+) -> Result<(), InvalidounterResetVal> {
+    if scrub_rate == 0 || scrub_rate > u32::pow(2, 24) {
+        return Err(InvalidounterResetVal(()));
+    }
+    syscfg.rom_scrub().write(|w| unsafe { w.bits(scrub_rate) });
+    Ok(())
+}
+
+pub fn disable_rom_scrubbing(syscfg: &mut pac::Sysconfig) {
+    syscfg.rom_scrub().write(|w| unsafe { w.bits(0) })
+}
+
+/// Enable scrubbing for the RAM
+///
+/// Returns [`UtilityError::InvalidCounterResetVal`] if the scrub rate is 0
+/// (equivalent to disabling) or larger than 24 bits
+pub fn enable_ram_scrubbing(
+    syscfg: &mut pac::Sysconfig,
+    scrub_rate: u32,
+) -> Result<(), InvalidounterResetVal> {
+    if scrub_rate == 0 || scrub_rate > u32::pow(2, 24) {
+        return Err(InvalidounterResetVal(()));
+    }
+    syscfg.ram_scrub().write(|w| unsafe { w.bits(scrub_rate) });
+    Ok(())
+}
+
+pub fn disable_ram_scrubbing(syscfg: &mut pac::Sysconfig) {
+    syscfg.ram_scrub().write(|w| unsafe { w.bits(0) })
+}
+
+/// Clear the reset bit. This register is active low, so doing this will hold the peripheral
+/// in a reset state
+pub fn clear_reset_bit(syscfg: &mut pac::Sysconfig, periph_sel: PeripheralSelect) {
+    syscfg
+        .peripheral_reset()
+        .modify(|r, w| unsafe { w.bits(r.bits() & !(1 << periph_sel as u8)) });
+}
+
+pub fn set_reset_bit(syscfg: &mut pac::Sysconfig, periph_sel: PeripheralSelect) {
+    syscfg
+        .peripheral_reset()
+        .modify(|r, w| unsafe { w.bits(r.bits() | (1 << periph_sel as u8)) });
+}