nxp: imx93: Switch to native Zephyr drivers and timer domain

Starting with this commit, i.MX93 now uses the timer domain
in conjunction with the Zephyr native drivers.

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>

Author: LaurentiuM1234

app/boards/imx93_evk_mimx9352_a55.conf

@@ -26,3 +26,5 @@ CONFIG_DMA_NXP_EDMA_ENABLE_HALFMAJOR_IRQ=y
 # needed because EDMA uses same interrupt for multiple
 # channels.
 CONFIG_SHARED_INTERRUPTS=y
+
+CONFIG_ZEPHYR_NATIVE_DRIVERS=y

src/platform/Kconfig

@@ -128,7 +128,6 @@ config IMX93_A55
 	select BUILD_OUTPUT_BIN
 	select ZEPHYR_LOG
 	select HOST_PTABLE
-	select DMA_DOMAIN
 	help
 	 Select if your target platform is imx93-compatible.
 

src/platform/imx93_a55/platform.c

@@ -118,12 +118,6 @@ int platform_init(struct sof *sof)
 	if (ret < 0)
 		return -ENODEV;
 
-	/* Initialize DMA domain */
-	sof->platform_dma_domain = zephyr_dma_domain_init(&sof->dma_info->dma_array[0],
-							  1,
-							  PLATFORM_DEFAULT_CLOCK);
-	zephyr_ll_scheduler_init(sof->platform_dma_domain);
-
 	/* Initialize IPC */
 	ipc_init(sof);
 

tools/topology/topology1/sof-imx93-wm8962.m4

@@ -58,14 +58,14 @@ dnl     period, priority, core, time_domain)
 DAI_ADD(sof/pipe-dai-playback.m4,
 	1, SAI, 3, sai3-wm8962,
 	PIPELINE_SOURCE_1, 2, s32le,
-	1000, 0, 0, SCHEDULE_TIME_DOMAIN_DMA)
+	1000, 0, 0, SCHEDULE_TIME_DOMAIN_TIMER)
 
 # capture DAI is SAI1 using 2 periods
 # Buffers use s32le format, with 48 frame per 1000us on core 0 with priority 0
 DAI_ADD(sof/pipe-dai-capture.m4,
 	2, SAI, 3, sai3-wm8962,
 	PIPELINE_SINK_2, 2, s32le,
-	1000, 0, 0)
+	1000, 0, 0, SCHEDULE_TIME_DOMAIN_TIMER)
 
 
 # PCM Low Latency, id 0

zephyr/CMakeLists.txt

@@ -323,16 +323,12 @@ if (CONFIG_SOC_MIMX9352_A55)
 	zephyr_library_sources(
 		${SOF_PLATFORM_PATH}/imx93_a55/platform.c
 		${SOF_PLATFORM_PATH}/imx93_a55/lib/clk.c
-		${SOF_PLATFORM_PATH}/imx93_a55/lib/dma.c
-		${SOF_PLATFORM_PATH}/imx93_a55/lib/dai.c
+		lib/dma.c
 	)
 
 	# Drivers
 	zephyr_library_sources(
-		${SOF_DRIVERS_PATH}/generic/dummy-dma.c
 		${SOF_DRIVERS_PATH}/imx/ipc.c
-		${SOF_DRIVERS_PATH}/imx/edma.c
-		${SOF_DRIVERS_PATH}/imx/sai.c
 	)
 
 	zephyr_library_sources(