boards/stm32: introduce common timer config with TIM2

boards/common/stm32/include/cfg_timer_tim2.h

@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2019 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     boards_common_stm32
+ * @{
+ *
+ * @file
+ * @brief       Common configuration for STM32 Timer peripheral based on TIM2
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef CFG_TIMER_TIM2_H
+#define CFG_TIMER_TIM2_H
+
+#include "periph_cpu.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @name   Timer configuration
+ * @{
+ */
+static const timer_conf_t timer_config[] = {
+    {
+        .dev      = TIM2,
+#if defined(CPU_FAM_STM32L0) || defined(CPU_FAM_STM32L1)
+        .max      = 0x0000ffff,
+#else
+        .max      = 0xffffffff,
+#endif
+#if CPU_FAM_STM32L4
+        .rcc_mask = RCC_APB1ENR1_TIM2EN,
+#else
+        .rcc_mask = RCC_APB1ENR_TIM2EN,
+#endif
+        .bus      = APB1,
+        .irqn     = TIM2_IRQn
+    }
+};
+
+#define TIMER_0_ISR         isr_tim2
+
+#define TIMER_NUMOF         (sizeof(timer_config) / sizeof(timer_config[0]))
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CFG_TIMER_TIM2_H */
+/** @} */