--- zzzz-none-000/linux-5.15.111/arch/arm/mm/cache-l2x0.c	2023-05-11 14:00:40.000000000 +0000
+++ puma7-arm-6670-761/linux-5.15.111/arch/arm/mm/cache-l2x0.c	2024-02-07 09:27:16.000000000 +0000
@@ -3,7 +3,25 @@
  * arch/arm/mm/cache-l2x0.c - L210/L220/L310 cache controller support
  *
  * Copyright (C) 2007 ARM Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ * Includes Intel Corporation's changes/modifications dated: 2015-2018.
+ * Changed/modified portions - Copyright © 2015-2018, Intel Corporation
+ *
  */
+
 #include <linux/cpu.h>
 #include <linux/err.h>
 #include <linux/init.h>
@@ -21,6 +39,30 @@
 #include <asm/hardware/cache-aurora-l2.h>
 #include "cache-tauros3.h"
 
+/* Puma7 L2C310 is working in BE and this driver assume all l2caches are LE */
+#if CONFIG_CACHE_L2X0_BIG_ENDIAN
+# ifdef writel_relaxed
+#  undef writel_relaxed
+# endif
+# ifdef readl_relaxed
+#  undef readl_relaxed
+# endif
+# define writel_relaxed(v,c)     __raw_writel((__force u32) cpu_to_be32(v),c)
+# define readl_relaxed(c)        ({ u32 __r = be32_to_cpu((__force __le32) __raw_readl(c)); __r; })
+#endif
+
+/* Puma7 L2C310 is working in BE and this driver assume all l2caches are LE */
+#if CONFIG_CACHE_L2X0_BIG_ENDIAN
+# ifdef writel_relaxed
+#  undef writel_relaxed
+# endif
+# ifdef readl_relaxed
+#  undef readl_relaxed
+# endif
+# define writel_relaxed(v,c)     __raw_writel((__force u32) cpu_to_be32(v),c)
+# define readl_relaxed(c)        ({ u32 __r = be32_to_cpu((__force __le32) __raw_readl(c)); __r; })
+#endif
+
 struct l2c_init_data {
 	const char *type;
 	unsigned way_size_0;