soc: RT700 DSP Hifi4 enable cache handling

TomasGalbickaNXP · kartben · commit 3cf2cc06dd93 · 2025-10-01T08:16:51.000+02:00
This commit adds cache handling for Hifi4 core on RT700.
Enable CACHE_MANAGEMENT and HAS_DCACHE.

Signed-off-by: Tomas Galbicka &lt;tomas.galbicka@nxp.com&gt;
diff --git a/soc/nxp/imxrt/imxrt7xx/hifi4/Kconfig b/soc/nxp/imxrt/imxrt7xx/hifi4/Kconfig
@@ -9,6 +9,8 @@ config SOC_MIMXRT798S_HIFI4
 	select XTENSA_SMALL_VECTOR_TABLE_ENTRY
 	select GEN_ISR_TABLES
 	select CLOCK_CONTROL
+	select CACHE_MANAGEMENT
+	select CPU_HAS_DCACHE
 	select SOC_EARLY_INIT_HOOK
 	select NXP_INPUTMUX
 	select HAS_MCUX
diff --git a/soc/nxp/imxrt/imxrt7xx/hifi4/Kconfig.defconfig b/soc/nxp/imxrt/imxrt7xx/hifi4/Kconfig.defconfig
@@ -24,4 +24,8 @@ config NXP_IMXRT_BOOT_HEADER
 config I2S_HAS_PLL_SETTING
 	default n
 
+# Must match XCHAL_DCACHE_LINESIZE from core-isa.h
+config DCACHE_LINE_SIZE
+	default 256
+
 endif # SOC_MIMXRT798S_HIFI4
