drivers: usb: Fix usb fail when using the on-chip memory

Using SCB_CleanInvalidateDcache instead of SCB_DisableDcache & SCB_EnableDcache when config the non-cache area, in case of the cache will effect the configuration of the non-cache area Signed-off-by: Crist Xu <[email protected]>
benys · Sep 17, 2020 · ac3d943 · ac3d943
1 parent 55d6c8a
commit ac3d943
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/arch/arm/core/aarch32/cortex_m/mpu/arm_mpu.c b/arch/arm/core/aarch32/cortex_m/mpu/arm_mpu.c
@@ -323,6 +323,10 @@ static int arm_mpu_init(const struct device *arg)
 
 	arm_core_mpu_disable();
 
+#if defined(CONFIG_NOCACHE_MEMORY)
+	SCB_CleanInvalidateDCache();
+#endif
+
 	/* Architecture-specific configuration */
 	mpu_init();