wdt.h

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef SOC_MEDIATEK_COMMON_WDT_H
#define SOC_MEDIATEK_COMMON_WDT_H
 
#include <stdint.h>
#include <soc/addressmap.h>
 
struct mtk_wdt_regs {
        u32 wdt_mode;
        u32 wdt_length;
        u32 wdt_restart;
        u32 wdt_status;
        u32 wdt_interval;
        u32 wdt_swrst;
        u32 wdt_swsysrst;
        u32 reserved0[5];
        u32 wdt_req_mode;
        u32 reserved1[3];
        u32 wdt_debug_ctrl;
};
 
/* WDT_MODE */
enum {
        MTK_WDT_MODE_KEY        = 0x22000000,
        MTK_WDT_MODE_DUAL_MODE  = 1 << 6,
        MTK_WDT_MODE_IRQ        = 1 << 3,
        MTK_WDT_MODE_EXTEN      = 1 << 2,
        MTK_WDT_MODE_EXT_POL    = 1 << 1,
        MTK_WDT_MODE_ENABLE     = 1 << 0
};
 
/* WDT_RESET */
enum {
        MTK_WDT_SWRST_KEY       = 0x1209,
        MTK_WDT_STA_SPM_RST     = 1 << 1,
        MTK_WDT_STA_SW_RST      = 1 << 30,
        MTK_WDT_STA_HW_RST      = 1 << 31
};
 
static struct mtk_wdt_regs *const mtk_wdt = (void *)RGU_BASE;
 
void mtk_wdt_preinit(void);
int mtk_wdt_init(void);
void mtk_wdt_clr_status(void);
 
#endif /* SOC_MEDIATEK_COMMON_WDT_H */