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