dm365 reboot失败

TI专家：

      您好，dm365的板子，rdk是inpc 5.1版本，在串口输入reboot，有三分之一的板子重启设备，需要断电才能重启，，请帮忙分析，谢谢，如下：

root@192:~#root@192:~#root@192:~#root@192:~# reboot
WARNING: could not determine runlevel – doing soft reboot
(it's better to use shutdown instead of reboot from the command line)
INIT: Sending processes the TERM signal
Terminated
root@192:~#

INIT: Sending processes the KILL signal
Stopping telnet daemon.
Stopping syslogd/klogd: stopped syslogd (pid 810)
stopped klogd (pid 812)
done

Deconfiguring network interfaces… ifdown: interface lo not configured
ifdown: interface eth0 not configured
done.
Sending all processes the TERM signal…
ERR:57,:main.cpp signal_capture!ERR:sigterm:74 caught SIGTERM: shutting down
ApproDrvExit: 2
Sending all processes the KILL signal…
Unmounting remote filesystems…
Deactivating swap…
Unmounting local filesystems…
mount: can't find /mnt/ram in /proc/mounts
[ 19.349871] UBIFS: un-mount UBI device 2, volume 0
[ 19.397285] UBIFS: un-mount UBI device 1, volume 0
umount2: Device or resource busy
umount: devtmpfs busy – remounted read-only
Rebooting… [ 21.570132] device eth0 left promiscuous mode
[ 21.575740] davinci_musb_disable 152: dma still active
[ 21.582192] Restarting system.

Eason Wang：

Hi，

这些reboot指令不生效的板子，是一直不行，还是概率性不行？

heng：

回复 Eason Wang:

是概率性不行，但是概率很高，99%

Chris Meng：

回复 heng:

你好，

我建议你在reboot命令里面加上触发看门狗复位。

heng：

回复 Chris Meng:

测试过看门狗复位，所有板子不起作用

void AVSERVER_WDT_RESET(void){ unsigned int pRegAddr; volatile unsigned int *pReg;

#define UBL_WDT_RESET

//DRV_vpssExit();

OSA_printf("\nWDT_RESET: Restart System Started!!\n");

pRegAddr = DM365MM_mmap(0x01C20000, 0x2000); OSA_waitMsecs(100);

#ifdef UBL_WDT_RESET OSA_printf("\nWDT_RESET: UBL_WDT_RESET!\n");

pReg = (unsigned int *)(pRegAddr+0x1C08); // WDT *pReg = 0x00020000; pReg = (unsigned int *)(pRegAddr+0x1C0C); // execute > *pReg = 0x00020002;

#else

pReg = (unsigned int *)(pRegAddr+0x1C24); // TGCR *pReg |= 0x0B;

pReg = (unsigned int *)(pRegAddr+0x1C10); // TIM12 *pReg = 0x01; pReg = (unsigned int *)(pRegAddr+0x1C14); // TIM34 *pReg = 0x00;

pReg = (unsigned int *)(pRegAddr+0x1C18); // PRD12 *pReg = 0x0FFFFFFF; pReg = (unsigned int *)(pRegAddr+0x1C1C); // PRD34 *pReg = 0x0;

pReg = (unsigned int *)(pRegAddr+0x1C28); // WDTCR

*pReg = 0xA5C64000; OSA_waitMsecs(10); *pReg = 0xDA7E4000; OSA_waitMsecs(10); *pReg = 0xA5C64000;

#endif

DM365MM_ummap(pRegAddr, 0x2000);

OSA_printf("\nWDT_RESET: Restart System Completed!!\n");}

Chris Meng：

回复 heng:

你好，

你能否参考2.6.18kernel里面的看门狗驱动（见附件），改写一下该函数，看是否有改善？