diff options
| author | Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com> | 2020-09-09 14:06:05 +0530 |
|---|---|---|
| committer | Priyanka Jain <priyanka.jain@nxp.com> | 2020-09-24 20:57:32 +0530 |
| commit | d31f3a1b62889d0bc1bbd801760e0b0a55bc02f6 (patch) | |
| tree | c82fd186d1a5f598aa3693906d03a29a156c3837 /arch/arm/cpu | |
| parent | e5f1111a7919ee4d0596fec313f844bfad6db0ec (diff) | |
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>
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv8/fsl-layerscape/cpu.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/cpu.c b/arch/arm/cpu/armv8/fsl-layerscape/cpu.c index 8a2f4048ec..e610528544 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 @@ __efi_runtime_data u32 __iomem *rstcr = (u32 *)CONFIG_SYS_FSL_RST_ADDR; 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; |