kernel在 boot console后无打印信息

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Blackrose

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Aug 1, 2012, 3:00:05 AM8/1/12
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 Dear all:
         我用的板子是研華的RSB4210,芯片是 freescale imx535。移植 kernel時,串口沒有信息輸出了。下面是相關log信息,信息比較長,我只貼重點部分了,

部分一:這幾行是kernel啟動後,對串口的初始化   
NR_IRQS:368
MXC GPIO hardware
MXC IRQ initialized
MXC_Early serial console at MMIO 0x53fbc000 (options '115200')
bootconsole [ttymxc0] enabled
Console: colour dummy device 80x30


部分二:這部分是kernel停止的地方
Bluetooth: BNEP filters: protocol multicast
Bluetooth: HIDP (Human Interface Emulation) ver 1.2
VFP support v0.3: implementor 41 architecture 3 part 30 variant c rev 2
turn off boot console ttymxc0

主要問就在turn off boot console,之後串口就沒有信息輸出了。我之前還沒有對串口驅動作任何修改。請各位幫忙分析下,謝謝!

Jim Huang

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Aug 2, 2012, 10:42:40 AM8/2/12
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hi Blackrose,

Thanks for discussing here.

I think you should split Bluetooth support into kernel module, and
then you can verify it later.

Regards,
Jim Huang a.k.a. "jserv"
http://0xlab.org/

2012/8/1 Blackrose <chen...@gmail.com>:

Blackrose

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Aug 3, 2012, 11:19:06 PM8/3/12
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Thanks your help. I will try it.

在 2012年8月2日星期四UTC+8下午10时42分40秒,Jim Huang写道:
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