54 lines
947 B
C
54 lines
947 B
C
/*
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* (C) Copyright 2016 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0
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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 <wdt.h>
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#include <asm/io.h>
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#include <asm/arch/wdt.h>
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#include <linux/err.h>
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static int ast_sysreset_request(struct udevice *dev, enum sysreset_t type)
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{
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struct udevice *wdt;
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u32 reset_mode;
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int ret = uclass_first_device(UCLASS_WDT, &wdt);
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if (ret)
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return ret;
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switch (type) {
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case SYSRESET_WARM:
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reset_mode = WDT_CTRL_RESET_CPU;
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break;
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case SYSRESET_COLD:
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reset_mode = WDT_CTRL_RESET_CHIP;
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break;
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default:
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return -EPROTONOSUPPORT;
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}
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ret = wdt_expire_now(wdt, reset_mode);
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if (ret) {
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debug("Sysreset failed: %d", ret);
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return ret;
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}
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return -EINPROGRESS;
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}
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static struct sysreset_ops ast_sysreset = {
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.request = ast_sysreset_request,
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};
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U_BOOT_DRIVER(sysreset_ast) = {
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.name = "ast_sysreset",
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.id = UCLASS_SYSRESET,
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.ops = &ast_sysreset,
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};
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