diff --git a/cpu/fe310/include/clk_conf.h b/cpu/fe310/include/clk_conf.h
new file mode 100644
index 0000000000..534053e5d8
--- /dev/null
+++ b/cpu/fe310/include/clk_conf.h
@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2019-2020 Inria
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser General
+ * Public License v2.1. See the file LICENSE in the top level directory for more
+ * details.
+ */
+
+/**
+ * @ingroup     cpu_fe310
+ * @{
+ *
+ * @file
+ * @brief       Clock configuration for the FE310 cpu
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef CLK_CONF_H
+#define CLK_CONF_H
+
+#include "macros/units.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @name    Core Clock configuration
+ * @{
+ */
+#ifndef CONFIG_USE_CLOCK_HFXOSC_PLL
+#if IS_ACTIVE(CONFIG_USE_CLOCK_HFXOSC) || IS_ACTIVE(CONFIG_USE_CLOCK_HFROSC_PLL) || \
+    IS_ACTIVE(CONFIG_USE_CLOCK_HFROSC)
+#define CONFIG_USE_CLOCK_HFXOSC_PLL         0
+#else
+#define CONFIG_USE_CLOCK_HFXOSC_PLL         1       /* Use PLL clocked by HFXOSC by default */
+#endif
+#endif /* CONFIG_USE_CLOCK_HFXOSC_PLL */
+
+#ifndef CONFIG_USE_CLOCK_HFXOSC
+#define CONFIG_USE_CLOCK_HFXOSC             0
+#endif /* CONFIG_USE_CLOCK_HFXOSC */
+
+#ifndef CONFIG_USE_CLOCK_HFROSC_PLL
+#define CONFIG_USE_CLOCK_HFROSC_PLL         0
+#endif /* CONFIG_USE_CLOCK_HFROSC_PLL */
+
+#ifndef CONFIG_USE_CLOCK_HFROSC
+#define CONFIG_USE_CLOCK_HFROSC             0
+#endif /* CONFIG_USE_CLOCK_HFROSC */
+
+#if CONFIG_USE_CLOCK_HFXOSC_PLL && \
+    (CONFIG_USE_CLOCK_HFROSC_PLL || CONFIG_USE_CLOCK_HFROSC || CONFIG_USE_CLOCK_HFXOSC)
+#error "Cannot use HFXOSC_PLL with other clock configurations"
+#endif
+
+#if CONFIG_USE_CLOCK_HFXOSC && \
+    (CONFIG_USE_CLOCK_HFROSC_PLL || CONFIG_USE_CLOCK_HFROSC || CONFIG_USE_CLOCK_HFXOSC_PLL)
+#error "Cannot use HFXOSC with other clock configurations"
+#endif
+
+#if CONFIG_USE_CLOCK_HFROSC_PLL && \
+    (CONFIG_USE_CLOCK_HFXOSC_PLL || CONFIG_USE_CLOCK_HFXOSC || CONFIG_USE_CLOCK_HFROSC)
+#error "Cannot use HFROSC_PLL with other clock configurations"
+#endif
+
+#if CONFIG_USE_CLOCK_HFROSC && \
+    (CONFIG_USE_CLOCK_HFXOSC_PLL || CONFIG_USE_CLOCK_HFXOSC || CONFIG_USE_CLOCK_HFROSC_PLL)
+#error "Cannot use HFROSC with other clock configurations"
+#endif
+
+#define CONFIG_CLOCK_PLL_R                  (1)     /* Divide input clock by 2, mandatory with HFXOSC */
+#ifndef CONFIG_CLOCK_PLL_F
+#define CONFIG_CLOCK_PLL_F                  (39)    /* Multiply REFR by 80, e.g 2 * (39 + 1) */
+#endif
+#ifndef CONFIG_CLOCK_PLL_Q
+#define CONFIG_CLOCK_PLL_Q                  (1)     /* Divide VCO by 2, e.g 2^1 */
+#endif
+
+#if CONFIG_USE_CLOCK_HFXOSC_PLL
+#define CLOCK_PLL_INPUT_CLOCK               MHZ(16)
+#define CLOCK_PLL_REFR                      (CLOCK_PLL_INPUT_CLOCK / (CONFIG_CLOCK_PLL_R + 1))
+#define CLOCK_PLL_VCO                       (CLOCK_PLL_REFR * (2 * (CONFIG_CLOCK_PLL_F + 1)))
+#define CLOCK_PLL_OUT                       (CLOCK_PLL_VCO / (1 << CONFIG_CLOCK_PLL_Q))
+#define CLOCK_CORECLOCK                     (CLOCK_PLL_OUT) /* 320000000Hz with the values used above */
+
+/* Check PLL settings */
+#if CLOCK_PLL_REFR != MHZ(8)
+#error "Only R=2 can be used when using HFXOSC"
+#endif
+#if (CLOCK_PLL_VCO < MHZ(384)) || (CLOCK_PLL_VCO > MHZ(768))
+#error "VCO frequency must be in the range [384MHz - 768MHz], check the CLOCK_PLL_F value"
+#endif
+#if (CLOCK_PLL_OUT < MHZ(48)) || (CLOCK_PLL_OUT > MHZ(384))
+#error "PLL output frequency must be in the range [48MHz - 384MHz], check the CLOCK_PLL_Q value"
+#endif
+
+#elif CONFIG_USE_CLOCK_HFXOSC
+#define CLOCK_CORECLOCK                     MHZ(16)
+#endif
+
+/*
+  When using HFROSC input clock, the core clock cannot be computed from settings,
+  call cpu_freq() to get the configured CPU frequency.
+*/
+#ifndef CONFIG_CLOCK_DESIRED_FREQUENCY
+#define CONFIG_CLOCK_DESIRED_FREQUENCY     MHZ(320)
+#endif
+
+#ifndef CONFIG_CLOCK_HFROSC_TRIM
+#define CONFIG_CLOCK_HFROSC_TRIM           (6)      /* ~72000000Hz input freq */
+#endif
+#ifndef CONFIG_CLOCK_HFROSC_DIV
+#define CONFIG_CLOCK_HFROSC_DIV            (1)      /* Divide by 2 */
+#endif
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CLK_CONF_H */
+/** @} */