Amit,
As a matter of testing… Can you try limiting memory usage to no more than
512MB? E.g. with kernel cmd line: mem=456M@0x80000000
There’s a known pb with current Panda-UEFI implementation for enabling the full
1GB space (I’m working on it).
Also about earlyprintk, my observation is that the default UART used for early
messages is not UART3 (something like UART1?).
Not sure why it’s implemented this way in the omap kernel, but if willing to
use earlyprintk then you shall hack the appropriate kernel debug macro to
enable UART3.
Pls try removing the earlyprintk statement for first trials.
Regards,
Olivier.
From: keeran k [mailto:[email protected]]
Sent: Tuesday, January 29, 2013 6:41 PM
To: Amit Mahadik; [email protected]
Subject: Re: [edk2] Booting Linux on Pandaboard
Hi Amit,
Which gcc version are you using? Also Did you try with latest arm uefi-next
git, there are lot of fixes/patches went in after june package?
Keeran
On Tue, Jan 29, 2013 at 8:01 PM, Amit Mahadik
<[email protected]<mailto:[email protected]>> wrote:
Hello,
I am trying to boot linux kernel on Pandaboard ES Rev B1 using
(PANDA_EDK2_062512). I have successfully compiled the edk2 for PandaboardPkg as
described in readme.txt and able to boot with the MLO generated after
formatting the SD card.
SD card was formatted as suggested in
http://www.omappedia.com/wiki/SD_Configuration.
I am able to get the boot selection menu with error ERROR: Did not find
Linux kernel.
So I changed the entry via boot manager and added new entry
boot (62 MB)
-
VenHw(100C2CFA-B586-4198-9B4C-1683D195B1DA)/HD(1,MBR,0xB0305D5F,0x800,0x20000)
with following options (verified
the above device path.)
Select the Boot Device: 1
File path of the EFI Application or the kernel: zImage (Compiled kernel
v3.3-rc1 with omap2plus defconfig)
Has FDT support? [y/n] n
Add an initrd: [y/n] n
Arguments to pass to the binary: console=ttyUSB0 console=ttyAMA0 ,115200n8
root=/dev/mmcblk0p2 rw rootdelay=3 init=/linuxrc earlyprintk
Description for this new Entry: abc
I have compiled a custom rootfs which resides in the rootfs partition (ext3) of
the SD card.
However, I am unable to get kernel boot messages and the login prompt.
Following is the output
-----------------------
...........
PEI 1168 ms
DXE 3601 ms
BDS 73415 ms
BDS 480383883326 ms
Total Time = 1259 ms
Starting the kernel:
Uncompressing Linux... done, booting the kernel.
-----------------------------------------------------
After the above message I am unable to see earlyprintk msgs.
Have I missed any step? Please help.
Regards,
Amit.
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