dm8168 watchdog

电路图附件是watchdog部分的,pdf文件。

watchdog 的复位，是复位整个芯片的啊， 应该是从uboot开始全部重新加载的，何来vpss奔溃一说？

也许我理解你的表述有误，请指正。

是啊，我也是觉得复位整个芯片，但是现在出现了这个现象。很奇怪。

重新启动后就这样。

*** TVP5158 probe : START ***

TI VS EVM : TVP5158 device address : 0x58, 0x5a, 0x5c, 0x5e
TI DVR : TVP5158 device address : 0x5c, 0x5d, 0x5e, 0x5f

Device found : I2C (0xXX): 0x08 = 0x51
I2C (0xXX): 0x09 = 0x58

Device NOT found : I2C (0xXX): Read ERROR !!! (reg[0x08], count = 2)

I2C (0x58): Read ERROR !!! (reg[0x08], count = 2)
I2C (0x5a): Read ERROR !!! (reg[0x08], count = 2)
I2C (0x5c): Read ERROR !!! (reg[0x08], count = 2)
I2C (0x5d): Read ERROR !!! (reg[0x08], count = 2)
I2C (0x5e): Read ERROR !!! (reg[0x08], count = 2)
I2C (0x5f): Read ERROR !!! (reg[0x08], count = 2)

*** TVP5158 probe : END ***

/opt/dvr_rdk/ti816x
Unhandled fault: external abort on non-linefetch (0x1808) at 0xf9020000
Internal error: : 1808 [#1]
last sysfs file: /sys/kernel/uevent_seqnum
Modules linked in: syslink
CPU: 0 Not tainted (2.6.37 #14)
PC is at DM8168DUCATIMMU_enable+0x60/0xa0 [syslink]
LR is at DM8168DUCATIMMU_enable+0x28/0xa0 [syslink]
pc : [<bf0171dc>] lr : [<bf0171a4>] psr: 00000013
sp : cd39eff0 ip : d3004000 fp : cd39f004
r10: 00000000 r9 : cd39e000 r8 : bf0af318
r7 : bf07c7c0 r6 : d3001000 r5 : 00000000 r4 : d3001000
r3 : 00010000 r2 : f9020000 r1 : 00060000 r0 : bf061340
Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
Control: 10c5387d Table: 8d3e8019 DAC: 00000015
Process fw_load.out (pid: 997, stack limit = 0xcd39e2e8)
Stack: (0xcd39eff0 to 0xcd3a0000)
efe0: d3004000 00000000 cd39f034 cd39f008
f000: bf0168d0 bf017188 00000008 f9020000 00000000 d3001000 cd39fe34 d300a000
f020: cd39fea4 00000000 cd39f054 cd39f038 bf0047e8 bf0167e0 cd39fe34 bf01c100
f040: cd39fea4 cd39f078 cd39fe5c cd39f058 bf004160 bf00478c cd39fea4 00000000

5158 I2C读不到？

请教各位，问题解决了吗？我也遇到同样的问题，watchdong重启时vpss启动出错，log同楼上的兄弟相同