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 23 #define ASPEED_WDT_REGS_MAX (0x20 / 4) 24 25 struct AspeedWDTState { 26 /*< private >*/ 27 SysBusDevice parent_obj; 28 QEMUTimer *timer; 29 30 /*< public >*/ 31 MemoryRegion iomem; 32 uint32_t regs[ASPEED_WDT_REGS_MAX]; 33 34 AspeedSCUState *scu; 35 uint32_t pclk_freq; 36 }; 37 38 39 struct AspeedWDTClass { 40 SysBusDeviceClass parent_class; 41 42 uint32_t offset; 43 uint32_t ext_pulse_width_mask; 44 uint32_t reset_ctrl_reg; 45 void (*reset_pulse)(AspeedWDTState *s, uint32_t property); 46 void (*wdt_reload)(AspeedWDTState *s); 47 uint64_t (*sanitize_ctrl)(uint64_t data); 48 }; 49 50 #endif /* WDT_ASPEED_H */ 51