53 lines
1.0 KiB
C
53 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2020 Stefan Roese <sr@denx.de>
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*/
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#include <common.h>
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#include <dm.h>
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#include <errno.h>
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#include <sysreset.h>
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#include <asm/io.h>
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#define RST_SOFT_RST 0x0080
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struct octeon_sysreset_data {
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void __iomem *base;
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};
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static int octeon_sysreset_request(struct udevice *dev, enum sysreset_t type)
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{
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struct octeon_sysreset_data *data = dev_get_priv(dev);
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writeq(1, data->base + RST_SOFT_RST);
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return -EINPROGRESS;
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}
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static int octeon_sysreset_probe(struct udevice *dev)
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{
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struct octeon_sysreset_data *data = dev_get_priv(dev);
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data->base = dev_remap_addr(dev);
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return 0;
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}
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static struct sysreset_ops octeon_sysreset = {
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.request = octeon_sysreset_request,
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};
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static const struct udevice_id octeon_sysreset_ids[] = {
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{ .compatible = "mrvl,cn7xxx-rst" },
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{ }
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};
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U_BOOT_DRIVER(sysreset_octeon) = {
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.id = UCLASS_SYSRESET,
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.name = "octeon_sysreset",
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.priv_auto = sizeof(struct octeon_sysreset_data),
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.ops = &octeon_sysreset,
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.probe = octeon_sysreset_probe,
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.of_match = octeon_sysreset_ids,
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};
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