refactor(plat/arm): use mmio* functions to read/write NVFLAGS registers
Used mmio* functions to read/write NVFLAGS registers to avoid
possibile reordering of instructions by compiler.
Change-Id: Iae50ac30e5413259cf8554f0fff47512ad83b0fd
Signed-off-by: Manish V Badarkhe <Manish.Badarkhe@arm.com>
diff --git a/plat/arm/board/juno/juno_err.c b/plat/arm/board/juno/juno_err.c
index 60699cc..02d751e 100644
--- a/plat/arm/board/juno/juno_err.c
+++ b/plat/arm/board/juno/juno_err.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2015-2020, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2021, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@@ -16,10 +16,8 @@
*/
void __dead2 plat_arm_error_handler(int err)
{
- uint32_t *flags_ptr = (uint32_t *)V2M_SYS_NVFLAGS_ADDR;
-
/* Propagate the err code in the NV-flags register */
- *flags_ptr = err;
+ mmio_write_32(V2M_SYS_NVFLAGS_ADDR, (uint32_t)err);
/* Setup the watchdog to reset the system as soon as possible */
sp805_refresh(ARM_SP805_TWDG_BASE, 1U);