Merge #1439

1439: rp: use rp2040-boot2 to provide the boot2 blob r=Dirbaio a=pennae

we're currently shipping an old boot2 that runs the flash at half speed. use the more recent version instead, and allow user to choose between the different supported boot2 versions for different flash chips if they need that.

Co-authored-by: pennae <[email protected]>

2 files changed, 26 insertions, 3 deletions

diff --git a/embassy-rp/src/boot2.bin b/embassy-rp/src/boot2.bin
deleted file mode 100644
index fdc1fc756..000000000
--- a/embassy-rp/src/boot2.bin
+++ /dev/null
diff --git a/embassy-rp/src/lib.rs b/embassy-rp/src/lib.rs
index cba7559df..99f62738d 100644
--- a/embassy-rp/src/lib.rs
+++ b/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 {
     #[non_exhaustive]