13761765359 发表于 2023-3-6 11:20:18

iCore-3568JQ

iCore-3568JQ 核心板   ，I2C0 可以当普通IO 口使用么?
看设树
&i2c0 {
    status = "okay";                //change    20230223   
    sensor@3c{
      status = "okay";
      compatible = "firefly,pc9202";
      reg = <0x3c>;
      //wd-en-gpio = <&gpio3 23 GPIO_ACTIVE_HIGH>;
    };
};


i2c0 配的是PC9202 看门狗 ， 当把i2c 0 diabale 时 ，

[    0.195537]ret_from_fork+0x10/0x18
[    0.195863] SMP: stopping secondary CPUs
[    0.196225] PMU CRU:
[    0.196444] 00000000: 00006064 00001481 00000000 00000007 00007f00 00000000 00000000 00000000
[    0.197207] 00000020: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.197969] 00000040: 00002063 00001481 00000000 00000007 00007f00 00000000 00000000 00000000
[    0.198731] 00000060: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.199493] 00000080: 00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.200254] 000000a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.201016] 000000c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.201777] 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.202538] 00000100: 00000080 0040b71b 00000001 00000001 00000800 00000000 00000001 00000009
[    0.203300] 00000120: 0000050f 00008bbb 00000000 00000000 00000000 00000000 00000000 00000000
[    0.204061] 00000140: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.204822] 00000160: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.205584] 00000180: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.206345] 000001a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.207107] 000001c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.207869] 000001e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.208630] 00000200: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.209391] 00000220: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.210146] 00000240: 00040020 00000000
[    0.210489] CRU:
[    0.210670] 00000000: 00002044 00001441 00000000 00000007 00007f00 00000000 00000000 00000000
[    0.211430] 00000020: 00004082 00001441 00000000 00000007 00007f00 00000000 00000000 00000000
[    0.212191] 00000040: 00002063 00001441 00000000 00000007 00007f00 00000000 00000000 00000000
[    0.212952] 00000060: 0000107d 00001443 00000000 00000007 00007f00 00000000 00000000 00000000
[    0.213713] 00000080: 00002064 00001441 00000000 00000000 00000000 00000000 00000000 00000000
[    0.214474] 000000a0: 0000307d 00001442 00000000 00000000 00000000 00000000 00000000 00000000
[    0.215235] 000000c0: 00000455 00000000 00000000 00000000 00640064 00000000 00000000 00000103
[    0.215996] 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.216757] 00000100: 00000000 00000000 00000001 00000303 00000303 00000111 00004191 00000011
[    0.217518] 00000120: 00000053 00000100 00000001 00008000 00040004 00008000 00040004 00008000
[    0.218280] 00000140: 00040004 00008000 00040004 00008000 00040004 00008000 00040004 00004000
[    0.219041] 00000160: 00040004 0000000b 00000000 00000010 00001031 00001c30 00000520 00000004
[    0.219802] 00000180: 00000020 00000004 00000310 0000c001 0000c0c0 00003100 00000001 00000000
[    0.220565] 000001a0: 00000001 00000003 00000103 00002100 00000203 00000003 00000000 00000103
[    0.221325] 000001c0: 00000003 00000301 00000001 00001300 0000200b 00000000 0000200b 00000000
[    0.222087] 000001e0: 0000200b 00000000 0000200b 00000000 0000200b 00000000 0000200b 00000000
[    0.222848] 00000200: 0000200b 00000000 0000200b 00000000 0000200b 00000000 00000303 00000203
[    0.223609] 00000220: 00001500 00000000 0000001f 00000302 00000705 00000f0b 0000013b 00000303
[    0.224369] 00000240: 00000f07 00002713 00001f09 00008000 00040004 00003b2f 00000101 00000302
[    0.225129] 00000260: 00000704 0000130f 00001f27 00000000 00000000 00000000 00000000 00000000
[    0.225889] 00000280: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.226650] 000002a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.227411] 000002c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.228171] 000002e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.228931] 00000300: 00000000 00000000 00000000 00000000 00000000 00000000 00003333 0000c333
[    0.229693] 00000320: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.230453] 00000340: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.231213] 00000360: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.231974] 00000380: 00000000 00000000 00004000 00000000 00000000 00000000 00000000 00000000
[    0.232734] 000003a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.233495] 000003c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.234256] 000003e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.235016] 00000400: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.235778] 00000420: 00000000 00000000 00000002 00000002 00000002 00000000 00000000 00000000
[    0.236538] 00000440: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.237298] 00000460: 00000000 00000000 00000400 00000000 000002a0 00000000 00000000 00000000
[    0.238059] 00000480: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.238820] 000004a0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.239580] 000004c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.240341] 000004e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.241102] 00000500: 00040020 00000000 00040020 00000000 00040020 00000000 00040020 00000000
[    0.241863] 00000520: 00040020 00000000 00040020 00000000 00040020 00000000 00040020 00000000
[    0.242624] 00000540: 00040020 00000000 00040020 00000000 00000000 00000000 00000000 00000000
[    0.243385] 00000560: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.244139] 00000580: 00000004 00000000
[    0.244485] CPU0 online:0
[    0.244734]         EL2(NS) PC: <0xffffff8008095498> handle_IPI+0x23c/0x2a0
[    0.245371]
[    0.245518] CPU1 online:0
[    0.245765]         EL2(NS) PC: <0xffffff8008095498> handle_IPI+0x23c/0x2a0
[    0.246401]
[    0.246549] CPU2 online:0
[    0.246794]         EL2(NS) PC: <0xffffff8008095494> handle_IPI+0x238/0x2a0
[    0.247431]
[    0.247578] CPU3 online:1
[    0.247825]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.248467]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.249107]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.249748]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.250389]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.251030]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.251670]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.252311]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.252951]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.253593]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.254233]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.254874]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.255516]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.256156]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.256796]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.257438]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.258079]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.258719]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.259359]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.260000]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.260640]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.261281]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.261922]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.262562]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.263202]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.263843]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.264483]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.265124]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.265764]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.266405]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.267045]         EL2(NS) PC: <0xffffff8008621d70> rockchip_panic_notify+0x8c/0x244
[    0.267686]         EL2(NS) PC: <0xffffff8008621d6c> rockchip_panic_notify+0x88/0x244
[    0.268319]
[    0.268466] PMU:
[    0.268649] 00000000: 03003566 00000e0c 00000000 00000000 00000000 00000000 00000000 00000000
[    0.269411] 00000020: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.270172] 00000040: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.270934] 00000060: 00000006 00000000 00000006 00000000 0000ffff 0000000f 00000000 00000000
[    0.271696] 00000080: 00000000 00000000 00000000 00000002 00000000 00000000 00000001 00000000
[    0.272457] 000000a0: 00000001 00000000 00000003 00000000 00000000 00000000 00000000 00000000
[    0.273219] 000000c0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.273980] 000000e0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.276011] ---[ end Kernel panic - not syncing: panic_on_set_idle set ...
[    0.276011]]---


dengkx 发表于 2023-3-6 14:23:05

不能关闭i2c0，i2c0上有电源管理芯片
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