u-boot-brain/arch/arm/mach-nexell/reset.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2016 Nexell
* Youngbok, Park <park@nexell.co.kr>
*/
/*
*FIXME : Not support device tree & reset control driver.
* will remove after support device tree & reset control driver.
*/
#include <common.h>
#include <asm/io.h>
#include <asm/arch/nexell.h>
#include <asm/arch/reset.h>
struct nx_rstcon_registerset {
u32 regrst[(NUMBER_OF_RESET_MODULE_PIN + 31) >> 5];
};
static struct nx_rstcon_registerset *nx_rstcon =
(struct nx_rstcon_registerset *)PHY_BASEADDR_RSTCON;
void nx_rstcon_setrst(u32 rstindex, enum rstcon status)
{
u32 regnum, bitpos, curstat;
regnum = rstindex >> 5;
curstat = (u32)readl(&nx_rstcon->regrst[regnum]);
bitpos = rstindex & 0x1f;
curstat &= ~(1UL << bitpos);
curstat |= (status & 0x01) << bitpos;
writel(curstat, &nx_rstcon->regrst[regnum]);
}