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@@ -0,0 +1,49 @@
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+// SPDX-License-Identifier: GPL-2.0+
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+/*
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+ * Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
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+ *
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+ * Generic reset driver for x86 processor
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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 <sysreset.h>
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+#include <asm/io.h>
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+#include <asm/processor.h>
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+
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+static int x86_sysreset_request(struct udevice *dev, enum sysreset_t type)
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+{
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+ int value;
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+
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+ switch (type) {
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+ case SYSRESET_WARM:
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+ value = SYS_RST | RST_CPU;
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+ break;
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+ case SYSRESET_COLD:
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+ value = SYS_RST | RST_CPU | FULL_RST;
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+ break;
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+ default:
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+ return -ENOSYS;
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+ }
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+
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+ outb(value, IO_PORT_RESET);
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+
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+ return -EINPROGRESS;
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+}
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+
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+static const struct udevice_id x86_sysreset_ids[] = {
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+ { .compatible = "x86,reset" },
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+ { }
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+};
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+
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+static struct sysreset_ops x86_sysreset_ops = {
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+ .request = x86_sysreset_request,
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+};
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+
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+U_BOOT_DRIVER(x86_sysreset) = {
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+ .name = "x86-sysreset",
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+ .id = UCLASS_SYSRESET,
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+ .of_match = x86_sysreset_ids,
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+ .ops = &x86_sysreset_ops,
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+ .flags = DM_FLAG_PRE_RELOC,
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+};
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