xref: /arm-trusted-firmware/plat/imx/imx8m/imx8m_snvs.c (revision 91f16700b400a8c0651d24a598fc48ee2997a0d7)
1*91f16700Schasinglulu /*
2*91f16700Schasinglulu  * Copyright 2022-2023 NXP
3*91f16700Schasinglulu  *
4*91f16700Schasinglulu  * SPDX-License-Identifier: BSD-3-Clause
5*91f16700Schasinglulu  */
6*91f16700Schasinglulu 
7*91f16700Schasinglulu #include <lib/mmio.h>
8*91f16700Schasinglulu #include <platform_def.h>
9*91f16700Schasinglulu 
10*91f16700Schasinglulu #define SNVS_HPCOMR		U(0x04)
11*91f16700Schasinglulu #define SNVS_NPSWA_EN		BIT(31)
12*91f16700Schasinglulu 
13*91f16700Schasinglulu void enable_snvs_privileged_access(void)
14*91f16700Schasinglulu {
15*91f16700Schasinglulu 	unsigned int val;
16*91f16700Schasinglulu 
17*91f16700Schasinglulu 	val = mmio_read_32(IMX_SNVS_BASE + SNVS_HPCOMR);
18*91f16700Schasinglulu 	mmio_write_32(IMX_SNVS_BASE + SNVS_HPCOMR, val | SNVS_NPSWA_EN);
19*91f16700Schasinglulu }
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