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@@ -0,0 +1,51 @@
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+// SPDX-License-Identifier: GPL-2.0+
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+/*
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+ * Copyright 2021, Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
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+ */
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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 <log.h>
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+#include <sysreset.h>
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+#include <asm/sbi.h>
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+
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+static enum sbi_srst_reset_type reset_type_map[SYSRESET_COUNT] = {
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+ [SYSRESET_WARM] = SBI_SRST_RESET_TYPE_WARM_REBOOT,
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+ [SYSRESET_COLD] = SBI_SRST_RESET_TYPE_COLD_REBOOT,
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+ [SYSRESET_POWER] = SBI_SRST_RESET_TYPE_COLD_REBOOT,
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+ [SYSRESET_POWER_OFF] = SBI_SRST_RESET_TYPE_SHUTDOWN,
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+};
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+
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+static int sbi_sysreset_request(struct udevice *dev, enum sysreset_t type)
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+{
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+ enum sbi_srst_reset_type reset_type;
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+
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+ reset_type = reset_type_map[type];
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+ sbi_srst_reset(reset_type, SBI_SRST_RESET_REASON_NONE);
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+
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+ return -EINPROGRESS;
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+}
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+
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+static int sbi_sysreset_probe(struct udevice *dev)
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+{
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+ long have_reset;
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+
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+ have_reset = sbi_probe_extension(SBI_EXT_SRST);
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+ if (have_reset)
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+ return 0;
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+
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+ log_warning("SBI has no system reset extension\n");
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+ return -ENOENT;
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+}
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+
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+static struct sysreset_ops sbi_sysreset_ops = {
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+ .request = sbi_sysreset_request,
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+};
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+
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+U_BOOT_DRIVER(sbi_sysreset) = {
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+ .name = "sbi-sysreset",
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+ .id = UCLASS_SYSRESET,
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+ .ops = &sbi_sysreset_ops,
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+ .probe = sbi_sysreset_probe,
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+};
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