drivers: dma: Add GD32 DMA driver

Add support for GD32 DMA

Signed-off-by: TOKITA Hiroshi <[email protected]>

Author: soburi

drivers/dma/CMakeLists.txt

@@ -22,3 +22,4 @@ zephyr_library_sources_ifdef(CONFIG_DMA_INTEL_ADSP_HDA_HOST_OUT dma_intel_adsp_h
 zephyr_library_sources_ifdef(CONFIG_DMA_INTEL_ADSP_HDA_LINK_IN dma_intel_adsp_hda_link_in.c)
 zephyr_library_sources_ifdef(CONFIG_DMA_INTEL_ADSP_HDA_LINK_OUT dma_intel_adsp_hda_link_out.c)
 zephyr_library_sources_ifdef(CONFIG_DMA_INTEL_ADSP_GPDMA	dma_intel_adsp_gpdma.c dma_dw_common.c)
+zephyr_library_sources_ifdef(CONFIG_DMA_GD32		dma_gd32.c)

drivers/dma/Kconfig

@@ -48,4 +48,6 @@ source "drivers/dma/Kconfig.intel_adsp_gpdma"
 
 source "drivers/dma/Kconfig.intel_adsp_hda"
 
+source "drivers/dma/Kconfig.gd32"
+
 endif # DMA

drivers/dma/Kconfig.gd32

@@ -0,0 +1,10 @@
+# Copyright (c) 2022 Tokita, Hiroshi <[email protected]>
+# SPDX-License-Identifier: Apache-2.0
+
+config DMA_GD32
+	bool "Gigadevice GD32 DMA driver"
+	default y
+	depends on DT_HAS_GD_GD32_DMA_ENABLED
+	select USE_GD32_DMA
+	help
+	  DMA driver for GigaDevice GD32 series MCUs.