[people/ms/u-boot.git] / drivers / sysreset / sysreset_rk3399.c

/*
 * (C) Copyright 2016 Rockchip Electronics Co., Ltd
 *
 * SPDX-License-Identifier:	GPL-2.0
 */

#include <common.h>
#include <dm.h>
#include <errno.h>
#include <sysreset.h>
#include <asm/io.h>
#include <asm/arch/clock.h>
#include <asm/arch/cru_rk3399.h>
#include <asm/arch/hardware.h>
#include <linux/err.h>

int rk3399_sysreset_request(struct udevice *dev, enum sysreset_t type)
{
	struct rk3399_cru *cru = rockchip_get_cru();

	if (IS_ERR(cru))
		return PTR_ERR(cru);
	switch (type) {
	case SYSRESET_WARM:
		writel(0xeca8, &cru->glb_srst_snd_value);
		break;
	case SYSRESET_COLD:
		writel(0xfdb9, &cru->glb_srst_fst_value);
		break;
	default:
		return -EPROTONOSUPPORT;
	}

	return -EINPROGRESS;
}

static struct sysreset_ops rk3399_sysreset = {
	.request	= rk3399_sysreset_request,
};

U_BOOT_DRIVER(sysreset_rk3399) = {
	.name	= "rk3399_sysreset",
	.id	= UCLASS_SYSRESET,
	.ops	= &rk3399_sysreset,
};
Commit	Line	Data
b0b3c865 KY	1	/*
	2	* (C) Copyright 2016 Rockchip Electronics Co., Ltd
	3	*
	4	* SPDX-License-Identifier: GPL-2.0
	5	*/
	6
	7	#include <common.h>
	8	#include <dm.h>
	9	#include <errno.h>
	10	#include <sysreset.h>
	11	#include <asm/io.h>
	12	#include <asm/arch/clock.h>
	13	#include <asm/arch/cru_rk3399.h>
	14	#include <asm/arch/hardware.h>
	15	#include <linux/err.h>
	16
	17	int rk3399_sysreset_request(struct udevice *dev, enum sysreset_t type)
	18	{
	19	struct rk3399_cru *cru = rockchip_get_cru();
	20
	21	if (IS_ERR(cru))
	22	return PTR_ERR(cru);
	23	switch (type) {
	24	case SYSRESET_WARM:
	25	writel(0xeca8, &cru->glb_srst_snd_value);
	26	break;
	27	case SYSRESET_COLD:
	28	writel(0xfdb9, &cru->glb_srst_fst_value);
	29	break;
	30	default:
	31	return -EPROTONOSUPPORT;
	32	}
	33
	34	return -EINPROGRESS;
	35	}
	36
	37	static struct sysreset_ops rk3399_sysreset = {
	38	.request = rk3399_sysreset_request,
	39	};
	40
	41	U_BOOT_DRIVER(sysreset_rk3399) = {
	42	.name = "rk3399_sysreset",
	43	.id = UCLASS_SYSRESET,
	44	.ops = &rk3399_sysreset,
	45	};