Merge branch 'master' into master

embassy-rp/Cargo.toml

@@ -30,6 +30,15 @@ rom-func-cache = []
 intrinsics = []
 rom-v2-intrinsics = []
 
+# boot2 flash chip support. if none of these is enabled we'll default to w25q080 (used on the pico)
+boot2-at25sf128a = []
+boot2-gd25q64cs = []
+boot2-generic-03h = []
+boot2-is25lp080 = []
+boot2-ram-memcpy = []
+boot2-w25q080 = []
+boot2-w25x10cl = []
+
 # Enable nightly-only features
 nightly = ["embassy-executor/nightly", "embedded-hal-1", "embedded-hal-async", "embassy-embedded-hal/nightly", "dep:embassy-usb-driver", "dep:embedded-io"]
 
@@ -71,3 +80,4 @@ embedded-hal-nb = { version = "=1.0.0-alpha.2", optional = true}
 paste = "1.0"
 pio-proc = {version= "0.2" }
 pio = {version= "0.2.1" }
+rp2040-boot2 = "0.3"

embassy-rp/src/flash.rs

@@ -25,7 +25,7 @@ pub const ERASE_SIZE: usize = 4096;
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 #[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum Error {
-    /// Opration using a location not in flash.
+    /// Operation using a location not in flash.
     OutOfBounds,
     /// Unaligned operation or using unaligned buffers.
     Unaligned,

embassy-rp/src/i2c.rs

@@ -551,7 +551,7 @@ impl<'d, T: Instance + 'd, M: Mode> I2c<'d, T, M> {
 
                 if abort_reason.is_err() || (send_stop && last) {
                     // If the transaction was aborted or if it completed
-                    // successfully wait until the STOP condition has occured.
+                    // successfully wait until the STOP condition has occurred.
 
                     while !p.ic_raw_intr_stat().read().stop_det() {}
 

embassy-rp/src/interrupt.rs

@@ -34,3 +34,9 @@ declare!(ADC_IRQ_FIFO);
 declare!(I2C0_IRQ);
 declare!(I2C1_IRQ);
 declare!(RTC_IRQ);
+declare!(SWI_IRQ_0);
+declare!(SWI_IRQ_1);
+declare!(SWI_IRQ_2);
+declare!(SWI_IRQ_3);
+declare!(SWI_IRQ_4);
+declare!(SWI_IRQ_5);

embassy-rp/src/lib.rs

@@ -131,9 +131,32 @@ embassy_hal_common::peripherals! {
     WATCHDOG,
 }
 
-#[link_section = ".boot2"]
-#[used]
-static BOOT2: [u8; 256] = *include_bytes!("boot2.bin");
+macro_rules! select_bootloader {
+    ( $( $feature:literal => $loader:ident, )+ default => $default:ident ) => {
+        $(
+            #[cfg(feature = $feature)]
+            #[link_section = ".boot2"]
+            #[used]
+            static BOOT2: [u8; 256] = rp2040_boot2::$loader;
+        )*
+
+        #[cfg(not(any( $( feature = $feature),* )))]
+        #[link_section = ".boot2"]
+        #[used]
+        static BOOT2: [u8; 256] = rp2040_boot2::$default;
+    }
+}
+
+select_bootloader! {
+    "boot2-at25sf128a" => BOOT_LOADER_AT25SF128A,
+    "boot2-gd25q64cs" => BOOT_LOADER_GD25Q64CS,
+    "boot2-generic-03h" => BOOT_LOADER_GENERIC_03H,
+    "boot2-is25lp080" => BOOT_LOADER_IS25LP080,
+    "boot2-ram-memcpy" => BOOT_LOADER_RAM_MEMCPY,
+    "boot2-w25q080" => BOOT_LOADER_W25Q080,
+    "boot2-w25x10cl" => BOOT_LOADER_W25X10CL,
+    default => BOOT_LOADER_W25Q080
+}
 
 pub mod config {
     use crate::clocks::ClockConfig;

embassy-rp/src/uart/buffered.rs

@@ -544,7 +544,7 @@ pub(crate) unsafe fn on_interrupt<T: Instance>(_: *mut ()) {
             s.rx_waker.wake();
         }
         // Disable any further RX interrupts when the buffer becomes full or
-        // errors have occured. this lets us buffer additional errors in the
+        // errors have occurred. This lets us buffer additional errors in the
         // fifo without needing more error storage locations, and most applications
         // will want to do a full reset of their uart state anyway once an error
         // has happened.

embassy-rp/src/uart/mod.rs

@@ -231,7 +231,7 @@ impl<'d, T: Instance> UartTx<'d, T, Async> {
 }
 
 impl<'d, T: Instance, M: Mode> UartRx<'d, T, M> {
-    /// Create a new DMA-enabled UART which can only recieve data
+    /// Create a new DMA-enabled UART which can only receive data
     pub fn new(
         _uart: impl Peripheral<P = T> + 'd,
         rx: impl Peripheral<P = impl RxPin<T>> + 'd,
@@ -690,7 +690,7 @@ impl<'d, T: Instance, M: Mode> Uart<'d, T, M> {
         self.tx.send_break(bits).await
     }
 
-    /// Split the Uart into a transmitter and receiver, which is particuarly
+    /// Split the Uart into a transmitter and receiver, which is particularly
     /// useful when having two tasks correlating to transmitting and receiving.
     pub fn split(self) -> (UartTx<'d, T, M>, UartRx<'d, T, M>) {
         (self.tx, self.rx)