47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Sunxi A31 Power Management Unit
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*
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* (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
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* http://linux-sunxi.org
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*
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* Based on sun6i sources and earlier U-Boot Allwinner A10 SPL work
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*
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* (C) Copyright 2006-2013
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Berg Xing <bergxing@allwinnertech.com>
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* Tom Cubie <tangliang@allwinnertech.com>
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*/
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#include <common.h>
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#include <errno.h>
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#include <asm/io.h>
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#include <asm/arch/cpu.h>
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#include <asm/arch/prcm.h>
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#include <asm/arch/sys_proto.h>
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/* APB0 clock gate and reset bit offsets are the same. */
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void prcm_apb0_enable(u32 flags)
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{
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struct sunxi_prcm_reg *prcm =
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(struct sunxi_prcm_reg *)SUNXI_PRCM_BASE;
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/* open the clock for module */
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setbits_le32(&prcm->apb0_gate, flags);
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/* deassert reset for module */
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setbits_le32(&prcm->apb0_reset, flags);
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}
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void prcm_apb0_disable(u32 flags)
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{
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struct sunxi_prcm_reg *prcm =
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(struct sunxi_prcm_reg *)SUNXI_PRCM_BASE;
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/* assert reset for module */
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clrbits_le32(&prcm->apb0_reset, flags);
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/* close the clock for module */
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clrbits_le32(&prcm->apb0_gate, flags);
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}
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