From 2379c573da65fd13d4e5bd16619b321744ac37fe Mon Sep 17 00:00:00 2001
From: wires <wires@noreply.wires.systems>
Date: Mon, 6 Oct 2025 06:07:10 -0400
Subject: blocking serial messages

---
 src/board.zig | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 src/board.zig

(limited to 'src/board.zig')

diff --git a/src/board.zig b/src/board.zig
new file mode 100644
index 0000000..c55fb99
--- /dev/null
+++ b/src/board.zig
@@ -0,0 +1,20 @@
+pub const PERIPHERAL_BASE = 0xfe000000;
+pub const AUX_BASE = PERIPHERAL_BASE + 0x215000;
+pub const AUX_IRQ = AUX_BASE;
+pub const AUX_ENABLE = AUX_BASE + 0x4;
+
+const Auxiliary = enum(u32) {
+    mini_uart = 1,
+    spi1 = 2,
+    spi2 = 4,
+};
+
+pub fn enableAux(aux: Auxiliary) void {
+    const mmio_ptr: *volatile u32 = @ptrFromInt(AUX_ENABLE);
+    mmio_ptr.* |= @intFromEnum(aux);
+}
+
+pub fn disableAux(aux: Auxiliary) void {
+    const mmio_ptr: *volatile u32 = @ptrFromInt(AUX_ENABLE);
+    mmio_ptr.* &= ~@intFromEnum(aux);
+}
-- 
cgit 1.4.1