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30 lines
705 B
C
30 lines
705 B
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Freescale Semiconductor, Inc.
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* Copyright 2017-2018 NXP
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* Author: Dong Aisheng <aisheng.dong@nxp.com>
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*/
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/of_address.h>
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#define SMC_PMCTRL 0x10
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#define BP_PMCTRL_PSTOPO 16
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#define PSTOPO_PSTOP3 0x3
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void __init imx7ulp_pm_init(void)
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{
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struct device_node *np;
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void __iomem *smc1_base;
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np = of_find_compatible_node(NULL, NULL, "fsl,imx7ulp-smc1");
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smc1_base = of_iomap(np, 0);
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WARN_ON(!smc1_base);
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/* Partial Stop mode 3 with system/bus clock enabled */
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writel_relaxed(PSTOPO_PSTOP3 << BP_PMCTRL_PSTOPO,
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smc1_base + SMC_PMCTRL);
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iounmap(smc1_base);
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}
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