diff --git a/include/libopencm3/stm32/common/dma_common_csel.h b/include/libopencm3/stm32/common/dma_common_csel.h
index 04d93caf..755bb1df 100644
--- a/include/libopencm3/stm32/common/dma_common_csel.h
+++ b/include/libopencm3/stm32/common/dma_common_csel.h
@@ -43,6 +43,8 @@ specific memorymap.h header before including this header file.*/
 
 BEGIN_DECLS
 
+void dma_set_channel_request(uint32_t dma, uint8_t channel, uint8_t request);
+
 END_DECLS
 
 /** @cond */
diff --git a/lib/stm32/common/dma_common_csel.c b/lib/stm32/common/dma_common_csel.c
new file mode 100644
index 00000000..4cf1fca9
--- /dev/null
+++ b/lib/stm32/common/dma_common_csel.c
@@ -0,0 +1,46 @@
+/** @addtogroup dma_file DMA peripheral API
+@ingroup peripheral_apis
+
+LGPL License Terms @ref lgpl_license
+ */
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2019 Guillaume Revaillot <g.revaillot@gmail.com>
+ *
+ * This library is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/**@{*/
+
+#include <libopencm3/stm32/dma.h>
+
+/*---------------------------------------------------------------------------*/
+/** @brief DMA Channel Set Request Selection
+
+Set DMA request mapping selection for given channel. Refer to datasheet for channel
+request mapping tables.
+
+@param[in] dma DMA controller base address: DMA1 or DMA2
+@param[in] channel Channel number:  1-7 for DMA1 or 1-5 for DMA2
+@param[in] request DMA request mapping.
+*/
+
+void dma_set_channel_request(uint32_t dma, uint8_t channel, uint8_t request)
+{
+	uint32_t reg32 = DMA_CSELR(dma) & ~(DMA_CSELR_CxS_MASK << DMA_CSELR_CxS_SHIFT(channel));
+	DMA_CSELR(dma) = reg32 | ((DMA_CSELR_CxS_MASK & request) << DMA_CSELR_CxS_SHIFT(channel));
+}
+
+/**@}*/
diff --git a/lib/stm32/f0/Makefile b/lib/stm32/f0/Makefile
index 4480ff2f..9aeb71e5 100644
--- a/lib/stm32/f0/Makefile
+++ b/lib/stm32/f0/Makefile
@@ -39,7 +39,8 @@ OBJS		= can.o flash.o rcc.o comparator.o \
 
 OBJS            += gpio_common_all.o gpio_common_f0234.o crc_common_all.o crc_v2.o \
                    pwr_common_v1.o iwdg_common_all.o rtc_common_l1f024.o \
-                   dma_common_l1f013.o exti_common_all.o \
+                   dma_common_l1f013.o dma_common_csel.o \
+                   exti_common_all.o \
                    dac_common_all.o \
                    timer_common_all.o timer_common_f0234.o rcc_common_all.o
 
diff --git a/lib/stm32/l0/Makefile b/lib/stm32/l0/Makefile
index facaa8dd..3cad62eb 100644
--- a/lib/stm32/l0/Makefile
+++ b/lib/stm32/l0/Makefile
@@ -42,7 +42,7 @@ OBJS		+= spi_common_all.o spi_common_v1.o spi_common_v1_frf.o
 OBJS            += gpio_common_all.o gpio_common_f0234.o rcc_common_all.o
 OBJS		+= adc_common_v2.o
 OBJS		+= crs_common_all.o
-OBJS		+= dma_common_l1f013.o
+OBJS		+= dma_common_l1f013.o dma_common_csel.o
 OBJS		+= exti_common_all.o
 OBJS		+= flash_common_all.o flash_common_l01.o
 OBJS		+= i2c_common_v2.o
diff --git a/lib/stm32/l4/Makefile b/lib/stm32/l4/Makefile
index 43f4c831..dd834031 100644
--- a/lib/stm32/l4/Makefile
+++ b/lib/stm32/l4/Makefile
@@ -50,7 +50,7 @@ OBJS            += rng_common_v1.o
 OBJS            += timer_common_all.o
 OBJS            += i2c_common_v2.o
 OBJS            += usart_common_all.o usart_common_v2.o
-OBJS            += dma_common_l1f013.o
+OBJS            += dma_common_l1f013.o dma_common_csel.o
 OBJS            += iwdg_common_all.o
 OBJS            += rtc_common_l1f024.o
 OBJS            += spi_common_all.o spi_common_v2.o