MT6771，如何让reset key重启，而不是掉电关机？

tangh

硬件拉出来了Restkey 引脚，但是默认按下reset key ，只是关机了，却并不重启，需要修改如下代码：

1. In vendor\mediatek\proprietary\bootable\bootloader\preloader\platform\mt6771\src\drivers\pmic.c
   
2. static U32 g_sts_crst;
   
3. static U32 g_sts_apwdt;
   
4. static U32 g_just_rst;
   
5. static U32 g_pwrkey_release;
   
6. 
   
7. U32 is_pmic_ap_wdt(void)
   
8. {
   
9. return g_sts_apwdt;
   
10. }
    
11. 
    
12. ...
    
13. 
    
14. void pmic_dbg_status(unsigned char option)
    
15. {
    
16. ...
    
17. g_sts_crst = (poff_sts >> PMIC_STS_CRST_SHIFT) & PMIC_STS_CRST_MASK;
    
18. g_sts_apwdt = (poff_sts >> PMIC_STS_WDT_SHIFT) & PMIC_STS_WDT_MASK;
    
19. pal_log_warn("[PMIC]POFFSTS[0x%x]=0x%x\n",
    
20. MT6358_POFFSTS, poff_sts);
    
21. ...
    
22. }
    
23. 
    
24. In vendor\mediatek\proprietary\bootable\bootloader\preloader\platform\mt6771\src\drivers\platform.c
    
25. static boot_reason_t platform_boot_status(void)
    
26. {
    
27. ...
    
28. if (is_pmic_ap_wdt()) {
    
29.   pal_log_err("PRESS RESET KEY, reset now\n");
    
30.   rtc_mark_bypass_pwrkey();
    
31.   return BR_WDT_BY_PASS_PWK;
    
32. }
    
33. 
    
34. if(drdi_get_hw_ver() == HW_VER_V1) {
    
35. ...
    
36. }

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