[people/ms/u-boot.git] / drivers / sysreset / sysreset_rk3288.c

/*
 * (C) Copyright 2015 Google, Inc
 *
 * 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_rk3288.h>
#include <asm/arch/hardware.h>
#include <linux/err.h>

int rk3288_sysreset_request(struct udevice *dev, enum sysreset_t type)
{
	struct rk3288_cru *cru = rockchip_get_cru();

	if (IS_ERR(cru))
		return PTR_ERR(cru);
	switch (type) {
	case SYSRESET_WARM:
		rk_clrreg(&cru->cru_mode_con, 0xffff);
		writel(0xeca8, &cru->cru_glb_srst_snd_value);
		break;
	case SYSRESET_COLD:
		rk_clrreg(&cru->cru_mode_con, 0xffff);
		writel(0xfdb9, &cru->cru_glb_srst_fst_value);
		break;
	default:
		return -EPROTONOSUPPORT;
	}

	return -EINPROGRESS;
}

static struct sysreset_ops rk3288_sysreset = {
	.request	= rk3288_sysreset_request,
};

U_BOOT_DRIVER(sysreset_rk3288) = {
	.name	= "rk3288_sysreset",
	.id	= UCLASS_SYSRESET,
	.ops	= &rk3288_sysreset,
};
Commit	Line	Data
3c5d0e34 SG	1	/*
	2	* (C) Copyright 2015 Google, Inc
	3	*
	4	* SPDX-License-Identifier: GPL-2.0
	5	*/
	6
	7	#include <common.h>
	8	#include <dm.h>
	9	#include <errno.h>
11636258	10	#include <sysreset.h>
3c5d0e34 SG	11	#include <asm/io.h>
	12	#include <asm/arch/clock.h>
	13	#include <asm/arch/cru_rk3288.h>
	14	#include <asm/arch/hardware.h>
	15	#include <linux/err.h>
	16
11636258	17	int rk3288_sysreset_request(struct udevice *dev, enum sysreset_t type)
3c5d0e34 SG	18	{
	19	struct rk3288_cru *cru = rockchip_get_cru();
	20
	21	if (IS_ERR(cru))
	22	return PTR_ERR(cru);
	23	switch (type) {
11636258	24	case SYSRESET_WARM:
a49dc0a9	25	rk_clrreg(&cru->cru_mode_con, 0xffff);
3c5d0e34 SG	26	writel(0xeca8, &cru->cru_glb_srst_snd_value);
3c5d0e34 SG	27	break;
11636258	28	case SYSRESET_COLD:
a49dc0a9	29	rk_clrreg(&cru->cru_mode_con, 0xffff);
3c5d0e34 SG	30	writel(0xfdb9, &cru->cru_glb_srst_fst_value);
	31	break;
	32	default:
	33	return -EPROTONOSUPPORT;
	34	}
	35
	36	return -EINPROGRESS;
	37	}
	38
11636258 SW	39	static struct sysreset_ops rk3288_sysreset = {
11636258 SW	40	.request = rk3288_sysreset_request,
3c5d0e34 SG	41	};
3c5d0e34 SG	42
11636258 SW	43	U_BOOT_DRIVER(sysreset_rk3288) = {
	44	.name = "rk3288_sysreset",
	45	.id = UCLASS_SYSRESET,
	46	.ops = &rk3288_sysreset,
3c5d0e34	47	};