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1、每次重启板子 有时也会出现 PHY 0：04 not found，然后eth0、eth1均不可用，有时正常，如何调整？
2、每次启动后执行 insmod am335x_adcdrv.ko 有时会出现如下报错，有时是正常的，如何调整？
[ 10.362152] Unable to handle kernel NULL pointer dereference at virtual address 000000b8
[ 10.370635] pgd = df42c000
[ 10.373474] [000000b8] *pgd=9f45f831, *pte=00000000, *ppte=00000000
[ 10.380035] Internal error: Oops: 17 [#1]
[ 10.384246] Modules linked in: am335x_adcdrv(O+)
[ 10.389068] CPU: 0 Tainted: G O (3.2.0 #35)
[ 10.394744] PC is at sysfs_create_dir+0x48/0xe0
[ 10.399505] LR is at kobj_child_ns_ops+0x28/0x34
[ 10.404327] pc : [<c00fadc8>] lr : [<c01fb7ac>] psr: 20000013
[ 10.404327] sp : df44bcb8 ip : df44bca8 fp : df44bce4
[ 10.416351] r10: bf0007c8 r9 : bf000714 r8 : df015c08
[ 10.421813] r7 : 00000000 r6 : 00000000 r5 : df0133b0 r4 : df281a48
[ 10.428649] r3 : df4a6bc4 r2 : df11d24c r1 : df281a4c r0 : 000000b8
[ 10.435455] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 10.442932] Control: 10c5387d Table: 9f42c019 DAC: 00000015
[ 10.448944] Process insmod (pid: 972, stack limit = 0xdf44a2f0)
[ 10.455139] Stack: (0xdf44bcb8 to 0xdf44c000)
[ 10.459686] bca0: 00000061 df015c08
[ 10.468261] bcc0: df44bce4 df44bcd0 c01fad8c df281a48 df281a48 bf000900 df44bd1c df44bce8
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[ 10.883422] [<c00696a8>] (sys_init_module+0x0/0x1b68) from [<c0014740>] (ret_fast_syscall+0x0/0x30)
[ 10.892883] Code: e1a00004 eb040270 e3500000 0a00001e (e5902000)
[ 10.899566] ---[ end trace 63ac48078bf13bfd ]---
再次重启后
root@MYD-AM335x ~# insmod /am335x_adcdrv.ko
[ 12.566955] Disabling lock debugging due to kernel taint
[ 12.577728] Clock configure
[ 12.580780] Configure ADC
[ 12.583557] Unable to handle kernel NULL pointer dereference at virtual address 00000037
[ 12.592041] pgd = df3c4000
[ 12.594848] [00000037] *pgd=9f3b0831, *pte=00000000, *ppte=00000000
[ 12.601440] Internal error: Oops: 17 [#1]
[ 12.605621] Modules linked in: am335x_adcdrv(O+) ti_tscadc
[ 12.611389] CPU: 0 Tainted: G O (3.2.0 #35)
[ 12.617034] PC is at sysfs_create_dir+0x48/0xe0
[ 12.621795] LR is at kobj_child_ns_ops+0x28/0x34
[ 12.626617] pc : [<c00fadc8>] lr : [<c01fb7ac>] psr: 20000013
[ 12.626647] sp : df16dcb8 ip : df16dca8 fp : df16dce4
[ 12.638641] r10: bf0057c8 r9 : bf005714 r8 : df015c08
[ 12.644104] r7 : 00000000 r6 : 00000000 r5 : df0133b0 r4 : df251808
[ 12.650939] r3 : df2c20c4 r2 : df11e24c r1 : df25180c r0 : 00000037
[ 12.657775] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 12.665252] Control: 10c5387d Table: 9f3c4019 DAC: 00000015
[ 12.671234] Process insmod (pid: 945, stack limit = 0xdf16c2f0)
[ 12.677429] Stack: (0xdf16dcb8 to 0xdf16e000)
[ 12.682006] dca0: 00000061 df015c08
[ 12.690551] dcc0: df16dce4 df16dcd0 c01fad8c df251808 df251808 bf005900 df16dd1c df16dce8
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[ 13.115142] Code: e1a00004 eb040270 e3500000 0a00001e (e5902000)
[ 13.121551] ---[ end trace ca96d860e3f6e3b1 ]---
Segmentation fault
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