Add Ethos-u core driver

Change-Id: I541862775031c21e6483f26446a29dfe452382ab

1 files changed, 69 insertions, 0 deletions

diff --git a/src/ethosu_common.h b/src/ethosu_common.h
new file mode 100644
index 0000000..58fa1c6
--- /dev/null
+++ b/src/ethosu_common.h
@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2019-2020 Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if !defined ETHOSU_COMMON_H
+#define ETHOSU_COMMON_H
+
+#include "ethosu55_interface.h"
+
+#if !defined(LOG_ENABLED)
+#define LOG_INFO(format, ...)
+#define LOG_ERR(format, ...)
+#else
+#define LOG_INFO(format, ...) fprintf(stdout, format, ##__VA_ARGS__)
+#define LOG_ERR(format, ...)                                                                                           \
+    fprintf(stderr, format, ##__VA_ARGS__);                                                                            \
+    fflush(stderr)
+
+#endif
+
+#if defined(ASSERT_DISABLE)
+#define ASSERT(args)
+#else
+#define ASSERT(args) assert(args)
+#endif
+
+#if defined(CPU_CORTEX_M55)
+#define NPU_BASE ((uint32_t)0x41700000)
+#else
+#define NPU_BASE ((uint32_t)0x41105000)
+#endif
+#define UNUSED(x) ((void)x)
+
+#define VER_STR(X) VNUM_STR(X)
+#define VNUM_STR(X) #X
+
+static const __attribute__((section("npu_driver_version"))) char driver_version_str[] = VER_STR(
+    ETHOSU_DRIVER_VERSION_MAJOR) "." VER_STR(ETHOSU_DRIVER_VERSION_MINOR) "." VER_STR(ETHOSU_DRIVER_VERSION_PATCH);
+
+static const __attribute__((section("npu_driver_arch_version"))) char driver_arch_version_str[] =
+    VER_STR(NNX_ARCH_VERSION_MAJOR) "." VER_STR(NNX_ARCH_VERSION_MINOR) "." VER_STR(NNX_ARCH_VERSION_PATCH);
+
+static inline uint32_t read_reg(uint32_t address)
+{
+    volatile uint32_t *reg = (uint32_t *)(uintptr_t)(NPU_BASE + address);
+    return *reg;
+}
+
+static inline void write_reg(uint32_t address, uint32_t value)
+{
+    volatile uint32_t *reg = (uint32_t *)(uintptr_t)(NPU_BASE + address);
+    *reg                   = value;
+}
+
+#endif // ETHOSU_COMMON_H