armv8: lx2160a: fix reset sequence
Make sure that SW_RST_REQ and RST_REQ_MSK are cleared
before triggering hardware reset request.
Signed-off-by: Thirupathaiah Annapureddy <thiruan@linux.microsoft.com>
Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
index 8a2f404..e610528 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0+
/*
- * Copyright 2017-2019 NXP
+ * Copyright 2017-2020 NXP
* Copyright 2014-2015 Freescale Semiconductor, Inc.
*/
@@ -1229,13 +1229,15 @@
void __efi_runtime reset_cpu(ulong addr)
{
- u32 val;
-
#ifdef CONFIG_ARCH_LX2160A
- val = in_le32(rstcr);
- val |= 0x01;
- out_le32(rstcr, val);
+ /* clear the RST_REQ_MSK and SW_RST_REQ */
+ out_le32(rstcr, 0x0);
+
+ /* initiate the sw reset request */
+ out_le32(rstcr, 0x1);
#else
+ u32 val;
+
/* Raise RESET_REQ_B */
val = scfg_in32(rstcr);
val |= 0x02;