1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2019 Pepperl+Fuchs
4 * Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
12 #include <asm/arch/reset_manager.h>
14 struct socfpga_sysreset_data {
15 void __iomem *rstmgr_base;
18 static int socfpga_sysreset_request(struct udevice *dev,
21 struct socfpga_sysreset_data *data = dev_get_priv(dev);
25 writel(BIT(RSTMGR_CTRL_SWWARMRSTREQ_LSB),
26 data->rstmgr_base + RSTMGR_CTRL);
29 writel(BIT(RSTMGR_CTRL_SWCOLDRSTREQ_LSB),
30 data->rstmgr_base + RSTMGR_CTRL);
33 return -EPROTONOSUPPORT;
38 static int socfpga_sysreset_probe(struct udevice *dev)
40 struct socfpga_sysreset_data *data = dev_get_priv(dev);
42 data->rstmgr_base = devfdt_get_addr_ptr(dev);
46 static struct sysreset_ops socfpga_sysreset = {
47 .request = socfpga_sysreset_request,
50 U_BOOT_DRIVER(sysreset_socfpga) = {
51 .id = UCLASS_SYSRESET,
52 .name = "socfpga_sysreset",
53 .priv_auto_alloc_size = sizeof(struct socfpga_sysreset_data),
54 .ops = &socfpga_sysreset,
55 .probe = socfpga_sysreset_probe,