[RFC 3/4] Misc: SRAM: Hack for allowing executable code in SRAM.

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The generic SRAM mechanism does not ioremap memory in a
manner that allows code to be executed from SRAM. There is
currently no generic way to request ioremap to return a
memory area with execution allowed.

Insert a temporary hack for proof of concept on ARM.

Signed-off-by: Russ Dill <Russ.Dill@xxxxxx>
---
 drivers/misc/sram.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/sram.c b/drivers/misc/sram.c
index 08baaab..e059a23 100644
--- a/drivers/misc/sram.c
+++ b/drivers/misc/sram.c
@@ -31,6 +31,7 @@
 #include <linux/genalloc.h>
 #include <linux/sram.h>
 #include <asm-generic/cacheflush.h>
+#include <asm/io.h>
 
 #define SRAM_GRANULARITY	32
 
@@ -138,7 +139,7 @@ static int sram_probe(struct platform_device *pdev)
 	int ret;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	virt_base = devm_ioremap_resource(&pdev->dev, res);
+	virt_base = __arm_ioremap_exec(res->start, resource_size(res), false);
 	if (IS_ERR(virt_base))
 		return PTR_ERR(virt_base);
 
-- 
1.8.3.2

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