1 files changed, 48 insertions, 0 deletions
diff --git a/lib/rp2040/hardware/structs/bus_ctrl.h b/lib/rp2040/hardware/structs/bus_ctrl.h
new file mode 100644
index 00000000..ce95a7c1
--- /dev/null
+++ b/lib/rp2040/hardware/structs/bus_ctrl.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2020 Raspberry Pi (Trading) Ltd.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#ifndef _HARDWARE_STRUCTS_BUS_CTRL_H
+#define _HARDWARE_STRUCTS_BUS_CTRL_H
+
+#include "hardware/address_mapped.h"
+#include "hardware/regs/busctrl.h"
+
+enum bus_ctrl_perf_counter {
+    arbiter_rom_perf_event_access = 19,
+    arbiter_rom_perf_event_access_contested = 18,
+    arbiter_xip_main_perf_event_access = 17,
+    arbiter_xip_main_perf_event_access_contested = 16,
+    arbiter_sram0_perf_event_access = 15,
+    arbiter_sram0_perf_event_access_contested = 14,
+    arbiter_sram1_perf_event_access = 13,
+    arbiter_sram1_perf_event_access_contested = 12,
+    arbiter_sram2_perf_event_access = 11,
+    arbiter_sram2_perf_event_access_contested = 10,
+    arbiter_sram3_perf_event_access = 9,
+    arbiter_sram3_perf_event_access_contested = 8,
+    arbiter_sram4_perf_event_access = 7,
+    arbiter_sram4_perf_event_access_contested = 6,
+    arbiter_sram5_perf_event_access = 5,
+    arbiter_sram5_perf_event_access_contested = 4,
+    arbiter_fastperi_perf_event_access = 3,
+    arbiter_fastperi_perf_event_access_contested = 2,
+    arbiter_apb_perf_event_access = 1,
+    arbiter_apb_perf_event_access_contested = 0
+};
+
+typedef struct {
+    io_rw_32 priority;
+    io_ro_32 priority_ack;
+    struct {
+        io_rw_32 value;
+        io_rw_32 sel;
+    } counter[4];
+} bus_ctrl_hw_t;
+
+check_hw_layout(bus_ctrl_hw_t, counter[0].value, BUSCTRL_PERFCTR0_OFFSET);
+
+#define bus_ctrl_hw ((bus_ctrl_hw_t *const)BUSCTRL_BASE)
+
+#endif