xref: /arm-trusted-firmware/plat/imx/common/imx_wdog.c (revision 91f16700b400a8c0651d24a598fc48ee2997a0d7)
1*91f16700Schasinglulu /*
2*91f16700Schasinglulu  * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved.
3*91f16700Schasinglulu  *
4*91f16700Schasinglulu  * SPDX-License-Identifier: BSD-3-Clause
5*91f16700Schasinglulu  */
6*91f16700Schasinglulu 
7*91f16700Schasinglulu #include <lib/mmio.h>
8*91f16700Schasinglulu 
9*91f16700Schasinglulu #include <imx_regs.h>
10*91f16700Schasinglulu #include <imx_wdog.h>
11*91f16700Schasinglulu 
12*91f16700Schasinglulu static void imx_wdog_power_down(unsigned long base)
13*91f16700Schasinglulu {
14*91f16700Schasinglulu 	struct wdog_regs *wdog = (struct wdog_regs *)base;
15*91f16700Schasinglulu 
16*91f16700Schasinglulu 	mmio_write_16((uintptr_t)&wdog->wmcr, 0);
17*91f16700Schasinglulu }
18*91f16700Schasinglulu 
19*91f16700Schasinglulu void imx_wdog_init(void)
20*91f16700Schasinglulu {
21*91f16700Schasinglulu 	imx_wdog_power_down(WDOG1_BASE);
22*91f16700Schasinglulu 	imx_wdog_power_down(WDOG2_BASE);
23*91f16700Schasinglulu 	imx_wdog_power_down(WDOG3_BASE);
24*91f16700Schasinglulu 	imx_wdog_power_down(WDOG4_BASE);
25*91f16700Schasinglulu }
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