lib: Add rp2040 build files

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 72 insertions, 0 deletions

diff --git a/lib/rp2040/hardware/structs/clocks.h b/lib/rp2040/hardware/structs/clocks.h
new file mode 100644
index 00000000..489876d1
--- /dev/null
+++ b/lib/rp2040/hardware/structs/clocks.h
@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _HARDWARE_STRUCTS_CLOCKS_H
+#define _HARDWARE_STRUCTS_CLOCKS_H
+
+#include "hardware/address_mapped.h"
+#include "hardware/platform_defs.h"
+#include "hardware/regs/clocks.h"
+
+/*! \brief Enumeration identifying a hardware clock
+ *  \ingroup hardware_clocks
+ */
+/// \tag::clkenum[]
+enum clock_index {
+    clk_gpout0 = 0,     ///< GPIO Muxing 0
+    clk_gpout1,         ///< GPIO Muxing 1
+    clk_gpout2,         ///< GPIO Muxing 2
+    clk_gpout3,         ///< GPIO Muxing 3
+    clk_ref,            ///< Watchdog and timers reference clock
+    clk_sys,            ///< Processors, bus fabric, memory, memory mapped registers
+    clk_peri,           ///< Peripheral clock for UART and SPI
+    clk_usb,            ///< USB clock
+    clk_adc,            ///< ADC clock
+    clk_rtc,            ///< Real time clock
+    CLK_COUNT
+};
+/// \end::clkenum[]
+
+/// \tag::clock_hw[]
+typedef struct {
+    io_rw_32 ctrl;
+    io_rw_32 div;
+    io_rw_32 selected;
+} clock_hw_t;
+/// \end::clock_hw[]
+
+typedef struct {
+    io_rw_32 ref_khz;
+    io_rw_32 min_khz;
+    io_rw_32 max_khz;
+    io_rw_32 delay;
+    io_rw_32 interval;
+    io_rw_32 src;
+    io_ro_32 status;
+    io_ro_32 result;
+} fc_hw_t;
+
+typedef struct {
+    clock_hw_t clk[CLK_COUNT];
+    struct {
+        io_rw_32 ctrl;
+        io_rw_32 status;
+    } resus;
+    fc_hw_t fc0;
+    io_rw_32 wake_en0;
+    io_rw_32 wake_en1;
+    io_rw_32 sleep_en0;
+    io_rw_32 sleep_en1;
+    io_rw_32 enabled0;
+    io_rw_32 enabled1;
+    io_rw_32 intr;
+    io_rw_32 inte;
+    io_rw_32 intf;
+    io_rw_32 ints;
+} clocks_hw_t;
+
+#define clocks_hw ((clocks_hw_t *const)CLOCKS_BASE)
+#endif