[U-Boot] Uboot hangs on "starting kernel..."
Hi all,
I was working on freescale imx27ads board. Uboot hangs on ' starting kernel...'
I would be grateful if you can shed a light on the problem.
I used gcc-3.4.3 for cross compiling the image.
Here is the log:
U-Boot 2.0.0-rc3 (Mar 23 2009 - 13:30:42)
Board: Freescale i.MX27 phy0: Autonegotiation timeout phy0: Phyid 1: 7 Phyid 2: c0c4 LPA 1 phy0: Link is down - 10/Half
MPLL: 398 MHz, SPLL: 239 MHz, ARM: 265 MHz, AHB: 132 MHz, IPG: 66 MHz perclk1: 53199918 Hz perclk2: 265999593 Hz perclk3: 53199918 Hz perclk4: 265999593 Hz clkin26: 26000000 Hz Malloc Space: 0xa3b00000 -> 0xa3f00000 (size 4 MB) running /env/bin/init...
Hit any key to stop autoboot: 0 Verifying Checksum ... OK Image Name: Linux-2.6.22.6 Created: 2009-12-08 14:52:27 UTC Data Size: 1564480 Bytes = 1.5 MB Load Address: a0008000 Entry Point: a0008000 OK commandline: console=ttymxc0,115200 mem=64M mtdparts=uboot:1M(boot),-(root) root=/dev/mmcblk0p1 rootdelay=1 rootfstype=ext2 video=mxcfb:800x600,bpp=16,OSD080TN4x
Starting kernel ...
Any insight would be very helpful, Best regards, W. _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
Wierd O wrote:
Hi all,
I was working on freescale imx27ads board. Uboot hangs on ' starting kernel...'
I would be grateful if you can shed a light on the problem.
I used gcc-3.4.3 for cross compiling the image.
Here is the log:
U-Boot 2.0.0-rc3 (Mar 23 2009 - 13:30:42)
Board: Freescale i.MX27 phy0: Autonegotiation timeout phy0: Phyid 1: 7 Phyid 2: c0c4 LPA 1 phy0: Link is down - 10/Half
MPLL: 398 MHz, SPLL: 239 MHz, ARM: 265 MHz, AHB: 132 MHz, IPG: 66 MHz perclk1: 53199918 Hz perclk2: 265999593 Hz perclk3: 53199918 Hz perclk4: 265999593 Hz clkin26: 26000000 Hz Malloc Space: 0xa3b00000 -> 0xa3f00000 (size 4 MB) running /env/bin/init...
Hit any key to stop autoboot: 0 Verifying Checksum ... OK Image Name: Linux-2.6.22.6 Created: 2009-12-08 14:52:27 UTC Data Size: 1564480 Bytes = 1.5 MB Load Address: a0008000 Entry Point: a0008000 OK commandline: console=ttymxc0,115200 mem=64M mtdparts=uboot:1M(boot),-(root) root=/dev/mmcblk0p1 rootdelay=1 rootfstype=ext2 video=mxcfb:800x600,bpp=16,OSD080TN4x
Starting kernel ...
Please read the documentation. Are you sure "console=ttymxc0" is correct?
regards, Ben
Date: Thu, 10 Dec 2009 11:54:53 -0800 From: biggerbadderben@gmail.com To: wierdo_b@hotmail.com CC: u-boot@lists.denx.de Subject: Re: [U-Boot] Uboot hangs on "starting kernel..."
Wierd O wrote:
Hi all,
I was working on freescale imx27ads board. Uboot hangs on ' starting kernel...'
I would be grateful if you can shed a light on the problem.
I used gcc-3.4.3 for cross compiling the image.
Here is the log:
U-Boot 2.0.0-rc3 (Mar 23 2009 - 13:30:42)
Board: Freescale i.MX27 phy0: Autonegotiation timeout phy0: Phyid 1: 7 Phyid 2: c0c4 LPA 1 phy0: Link is down - 10/Half
MPLL: 398 MHz, SPLL: 239 MHz, ARM: 265 MHz, AHB: 132 MHz, IPG: 66 MHz perclk1: 53199918 Hz perclk2: 265999593 Hz perclk3: 53199918 Hz perclk4: 265999593 Hz clkin26: 26000000 Hz Malloc Space: 0xa3b00000 -> 0xa3f00000 (size 4 MB) running /env/bin/init...
Hit any key to stop autoboot: 0 Verifying Checksum ... OK Image Name: Linux-2.6.22.6 Created: 2009-12-08 14:52:27 UTC Data Size: 1564480 Bytes = 1.5 MB Load Address: a0008000 Entry Point: a0008000 OK commandline: console=ttymxc0,115200 mem=64M mtdparts=uboot:1M(boot),-(root) root=/dev/mmcblk0p1 rootdelay=1 rootfstype=ext2 video=mxcfb:800x600,bpp=16,OSD080TN4x
Starting kernel ...
Please read the documentation. Are you sure "console=ttymxc0" is correct?
Yes, I am sure about the console. It is the correct one.
I am not sure why the kernel stops short of loading. The other thing that confuses me is that i couldnt know whther the proble is from the image or uboot.
regards, Ben
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Greetings.
On Thu10 Dec 2009, at 20:29, Wierd O wrote:
I am not sure why the kernel stops short of loading. The other thing that confuses me is that i couldnt know whther the proble is from the image or uboot.
You are assuming that the kernel 'stops short of loading'. It is quite likely that the kernel has gone along a fair but and attempted to bring up your board but has panicked at a very early stage before the kernel log buffer was flushed to the console thereby preventing you from getting a feel for what really went wrong. There could be any number of reasons for this of course.
My recommendation would be to start hacking the kernel from a very early stage of initialisation. If you can get to Linux's '__log_buf' and print out the ASCII contents straight to the UART, I bet you'll get a handle on the problem. It'll most likely be a kernel misconfiguration issue but you'll get the idea one hopes.
Cheers, Robin
participants (3)
-
Ben Warren -
Robin Randhawa -
Wierd O