--- zzzz-none-000/linux-4.9.279/arch/arm/mm/ioremap.c	2021-08-08 06:38:54.000000000 +0000
+++ puma7-arm-6591-750/linux-4.9.279/arch/arm/mm/ioremap.c	2023-02-08 10:58:12.000000000 +0000
@@ -300,6 +300,10 @@
 	 * Don't allow RAM to be mapped with mismatched attributes - this
 	 * causes problems with ARMv6+
 	 */
+#if defined(CONFIG_ARM_PUMA_C55_MEMORY) || (CONFIG_ARM_PUMA_C55_MEMORY >= 0)
+     /*--- but access to C55-P-Code should be uncached! ---*/
+    if(mtype != MT_DEVICE)
+#endif/*--- #if !defined(CONFIG_ARM_PUMA_C55_MEMORY) || (CONFIG_ARM_PUMA_C55_MEMORY == 0) ---*/
 	if (WARN_ON(pfn_valid(pfn) && mtype != MT_MEMORY_RW))
 		return NULL;