From 3aba25bc382beeb8a92b46d23fd1db47dfcb1121 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Tue, 9 Feb 2021 08:50:22 +0100
Subject: [PATCH] arm64: zynqmp: Do not clear reset reason
There is no need to clear reset reason register because it is protected by
PMUFW already which is reported when verbose log is enabled as:
pm_core.c@733 APU> No write permission to 0xFF5E0220
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
board/xilinx/zynqmp/zynqmp.c | 6 +-----
1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/board/xilinx/zynqmp/zynqmp.c b/board/xilinx/zynqmp/zynqmp.c
index a216eeb35f..6babc0ebce 100644
--- a/board/xilinx/zynqmp/zynqmp.c
+++ b/board/xilinx/zynqmp/zynqmp.c
@@ -496,11 +496,7 @@ static int reset_reason(void)
env_set("reset_reason", reason);
- ret = zynqmp_mmio_write((ulong)&crlapb_base->reset_reason, ~0, ~0);
- if (ret)
- return -EINVAL;
-
- return ret;
+ return 0;
}
static int set_fdtfile(void)
--
2.39.5