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i.MX: Add code to emulate i.MX2 watchdog IP block

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Add enough code to emulate i.MX2 watchdog IP block so it would be
possible to reboot the machine running Linux Guest.

Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Cc: Marcel Apfelbaum <marcel.apfelbaum@zoho.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: qemu-devel@nongnu.org
Cc: qemu-arm@nongnu.org
Cc: yurovsky@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Andrey Smirnov 2018-02-09 10:40:29 +00:00 • committed by Peter Maydell
parent e9e0ef15d2
commit 067e68e704
3 changed files with 123 additions and 0 deletions
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33
include/hw/misc/imx2_wdt.h Normal file
View file

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/*
* Copyright (c) 2017, Impinj, Inc.
*
* i.MX2 Watchdog IP block
*
* Author: Andrey Smirnov <andrew.smirnov@gmail.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#ifndef IMX2_WDT_H
#define IMX2_WDT_H
#include "hw/sysbus.h"
#define TYPE_IMX2_WDT "imx2.wdt"
#define IMX2_WDT(obj) OBJECT_CHECK(IMX2WdtState, (obj), TYPE_IMX2_WDT)
enum IMX2WdtRegisters {
IMX2_WDT_WCR = 0x0000,
IMX2_WDT_REG_NUM = 0x0008 / sizeof(uint16_t) + 1,
};
typedef struct IMX2WdtState {
/* <private> */
SysBusDevice parent_obj;
MemoryRegion mmio;
} IMX2WdtState;
#endif /* IMX7_SNVS_H */