1 /* 2 * ASPEED Watchdog Controller 3 * 4 * Copyright (C) 2016-2017 IBM Corp. 5 * 6 * This code is licensed under the GPL version 2 or later. See the 7 * COPYING file in the top-level directory. 8 */ 9 10 #ifndef WDT_ASPEED_H 11 #define WDT_ASPEED_H 12 13 #include "hw/misc/aspeed_scu.h" 14 #include "hw/sysbus.h" 15 #include "qom/object.h" 16 17 #define TYPE_ASPEED_WDT "aspeed.wdt" 18 OBJECT_DECLARE_TYPE(AspeedWDTState, AspeedWDTClass, ASPEED_WDT) 19 #define TYPE_ASPEED_2400_WDT TYPE_ASPEED_WDT "-ast2400" 20 #define TYPE_ASPEED_2500_WDT TYPE_ASPEED_WDT "-ast2500" 21 #define TYPE_ASPEED_2600_WDT TYPE_ASPEED_WDT "-ast2600" 22 #define TYPE_ASPEED_1030_WDT TYPE_ASPEED_WDT "-ast1030" 23 24 #define ASPEED_WDT_REGS_MAX (0x30 / 4) 25 26 struct AspeedWDTState { 27 /*< private >*/ 28 SysBusDevice parent_obj; 29 QEMUTimer *timer; 30 31 /*< public >*/ 32 MemoryRegion iomem; 33 uint32_t regs[ASPEED_WDT_REGS_MAX]; 34 35 AspeedSCUState *scu; 36 uint32_t pclk_freq; 37 }; 38 39 40 struct AspeedWDTClass { 41 SysBusDeviceClass parent_class; 42 43 uint32_t iosize; 44 uint32_t ext_pulse_width_mask; 45 uint32_t reset_ctrl_reg; 46 void (*reset_pulse)(AspeedWDTState *s, uint32_t property); 47 void (*wdt_reload)(AspeedWDTState *s); 48 uint64_t (*sanitize_ctrl)(uint64_t data); 49 uint32_t default_status; 50 uint32_t default_reload_value; 51 }; 52 53 #endif /* WDT_ASPEED_H */ 54