qemu/include/hw/watchdog/wdt_aspeed.h
Joel Stanley 6b2b2a703c hw: wdt_aspeed: Add AST2600 support
The AST2600 has four watchdogs, and they each have a 0x40 of registers.

When running as part of an ast2600 system we must check a different
offset for the system reset control register in the SCU.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 20190925143248.10000-12-clg@kaod.org
[clg: - reworked model integration into new object class ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2019-10-15 18:09:04 +01:00

53 lines
1.3 KiB
C

/*
* ASPEED Watchdog Controller
*
* Copyright (C) 2016-2017 IBM Corp.
*
* This code is licensed under the GPL version 2 or later. See the
* COPYING file in the top-level directory.
*/
#ifndef WDT_ASPEED_H
#define WDT_ASPEED_H
#include "hw/misc/aspeed_scu.h"
#include "hw/sysbus.h"
#define TYPE_ASPEED_WDT "aspeed.wdt"
#define ASPEED_WDT(obj) \
OBJECT_CHECK(AspeedWDTState, (obj), TYPE_ASPEED_WDT)
#define TYPE_ASPEED_2400_WDT TYPE_ASPEED_WDT "-ast2400"
#define TYPE_ASPEED_2500_WDT TYPE_ASPEED_WDT "-ast2500"
#define TYPE_ASPEED_2600_WDT TYPE_ASPEED_WDT "-ast2600"
#define ASPEED_WDT_REGS_MAX (0x20 / 4)
typedef struct AspeedWDTState {
/*< private >*/
SysBusDevice parent_obj;
QEMUTimer *timer;
/*< public >*/
MemoryRegion iomem;
uint32_t regs[ASPEED_WDT_REGS_MAX];
AspeedSCUState *scu;
uint32_t pclk_freq;
} AspeedWDTState;
#define ASPEED_WDT_CLASS(klass) \
OBJECT_CLASS_CHECK(AspeedWDTClass, (klass), TYPE_ASPEED_WDT)
#define ASPEED_WDT_GET_CLASS(obj) \
OBJECT_GET_CLASS(AspeedWDTClass, (obj), TYPE_ASPEED_WDT)
typedef struct AspeedWDTClass {
SysBusDeviceClass parent_class;
uint32_t offset;
uint32_t ext_pulse_width_mask;
uint32_t reset_ctrl_reg;
void (*reset_pulse)(AspeedWDTState *s, uint32_t property);
} AspeedWDTClass;
#endif /* WDT_ASPEED_H */