Make sure the ARM CPACR register is zeroed out, this is mandatory
on Arria10.

Signed-off-by: Marek Vasut <[email protected]>
Cc: Chin Liang See <[email protected]>
Cc: Dinh Nguyen <[email protected]>
---
 arch/arm/mach-socfpga/board.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-socfpga/board.c b/arch/arm/mach-socfpga/board.c
index 26d84be6e9..e8c7503fba 100644
--- a/arch/arm/mach-socfpga/board.c
+++ b/arch/arm/mach-socfpga/board.c
@@ -21,12 +21,14 @@ DECLARE_GLOBAL_DATA_PTR;
 void s_init(void) {
 #ifndef CONFIG_ARM64
        /*
-        * Preconfigure ACTLR, make sure Write Full Line of Zeroes is disabled.
+        * Preconfigure ACTLR and CPACR, make sure Write Full Line of Zeroes
+        * is disabled in ACTLR.
         * This is optional on CycloneV / ArriaV.
         * This is mandatory on Arria10, otherwise Linux refuses to boot.
         */
        asm volatile(
                "mcr p15, 0, %0, c1, c0, 1\n"
+               "mcr p15, 0, %0, c1, c0, 2\n"
                "isb\n"
                "dsb\n"
        ::"r"(0x0));
-- 
2.16.2

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