]> git.sur5r.net Git - u-boot/blob - drivers/sysreset/sysreset_rk322x.c
Merge branch 'master' of git://git.denx.de/u-boot-rockchip
[u-boot] / drivers / sysreset / sysreset_rk322x.c
1 /*
2  * (C) Copyright 2017 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_rk322x.h>
14 #include <asm/arch/hardware.h>
15 #include <linux/err.h>
16
17 int rk322x_sysreset_request(struct udevice *dev, enum sysreset_t type)
18 {
19         struct rk322x_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->cru_glb_srst_snd_value);
26                 break;
27         case SYSRESET_COLD:
28                 writel(0xfdb9, &cru->cru_glb_srst_fst_value);
29                 break;
30         default:
31                 return -EPROTONOSUPPORT;
32         }
33
34         return -EINPROGRESS;
35 }
36
37 static struct sysreset_ops rk322x_sysreset = {
38         .request        = rk322x_sysreset_request,
39 };
40
41 U_BOOT_DRIVER(sysreset_rk322x) = {
42         .name   = "rk322x_sysreset",
43         .id     = UCLASS_SYSRESET,
44         .ops    = &rk322x_sysreset,
45 };