Merge branch 'master' of git://git.denx.de/u-boot-samsung
[platform/kernel/u-boot.git] / drivers / sysreset / sysreset_rv1108.c
1 /*
2  * (C) Copyright 2015 Rockchip Electronics Co., Ltd
3  * Author: Andy Yan <andy.yan@rock-chips.com>
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_rv1108.h>
14 #include <asm/arch/hardware.h>
15 #include <linux/err.h>
16
17 int rv1108_sysreset_request(struct udevice *dev, enum sysreset_t type)
18 {
19         struct rv1108_cru *cru = rockchip_get_cru();
20
21         if (IS_ERR(cru))
22                 return PTR_ERR(cru);
23
24         switch (type) {
25         case SYSRESET_WARM:
26                 writel(0xeca8, &cru->glb_srst_snd_val);
27                 break;
28         case SYSRESET_COLD:
29                 writel(0xfdb9, &cru->glb_srst_fst_val);
30                 break;
31         default:
32                 return -EPROTONOSUPPORT;
33         }
34
35         return -EINPROGRESS;
36 }
37
38 static struct sysreset_ops rv1108_sysreset = {
39         .request        = rv1108_sysreset_request,
40 };
41
42 U_BOOT_DRIVER(sysreset_rv1108) = {
43         .name   = "rv1108_sysreset",
44         .id     = UCLASS_SYSRESET,
45         .ops    = &rv1108_sysreset,
46 };