From ec1c6cfb1cfce92909a248f10c36bd8b18894d7e Mon Sep 17 00:00:00 2001
From: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Date: Thu, 20 Feb 2025 15:54:42 +0200
Subject: treewide: Add a function to change page permissions

For armv8 we are adding proper page permissions for the relocated U-Boot
binary. Add a weak function that can be used across architectures to change
the page permissions

Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on AML-S905X-CC
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
---
 arch/nios2/lib/cache.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'arch/nios2/lib/cache.c')

diff --git a/arch/nios2/lib/cache.c b/arch/nios2/lib/cache.c
index 8f543f2a2f2..d7fd9ca8bd4 100644
--- a/arch/nios2/lib/cache.c
+++ b/arch/nios2/lib/cache.c
@@ -8,6 +8,7 @@
 #include <cpu_func.h>
 #include <asm/cache.h>
 #include <asm/global_data.h>
+#include <linux/errno.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -127,3 +128,8 @@ void dcache_disable(void)
 {
 	flush_dcache_all();
 }
+
+int __weak pgprot_set_attrs(phys_addr_t addr, size_t size, enum pgprot_attrs perm)
+{
+	return -ENOSYS;
+}
-- 
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