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Altera_Forum
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20 years ago

uboot uclinux boot

hi all, I am tring to boot uclinux-1.3 from u-boot-1.1.3 on altera 2s60 board. I can download and boot uboot on the board sucessfully and also uclinux-1.3 by directly downloading into sdram ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Hello,currently I am working on porting uclinux and uboot on my Cyclone board and I ported uClinux and uboot on Samsung'44b0 board some time ago. I have a question to ask, before uploading our kernel image to the board, we must build a niosCPU and download it to the board? Or can you give me some detailed file on porting uclinux to nios board?

Thank you in advance

my e-mail is : scut_ak@163.com

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originally posted by ankur@Apr 20 2006, 05:51 AM

hi all,

i am tring to boot uclinux-1.3 from u-boot-1.1.3 on altera 2s60 board.

i can download and boot uboot on the board sucessfully and also uclinux-1.3 by directly downloading into sdram or buring vmlinux.img file into flash through quratus flash programmer.

both, u-boot and uclinux are fine individually..... http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/smile.gif

the problem which i am facing is when i try to boot my vmlinux.img ( maked through mkimage utility with -a 0x01000000 -e 0x01000000) ..... the terminal is totally blank .......

seems like linux never gets control (executed) once u-boot passes control to location 0x01000000 (linux kernel entry address).

i tried keeping led blinking code (tested in linux as well as u-boot) in my head.s file of linux which will blink 3 leds on the board and its not happening which means linux never got executed.

i am confirm about u-boot passing control to memory address 0x01000000 as my prints are there in bootm command source code after disabling interrupt and before calling (kernel) ();

my question to the forum is ... is there any one who has booted any linux from any u-boot ever on any altera board.

i have searched on the nios forum for same but all the discussions were over with incomplete state or any success in this area is never submitted on web or any forum.

can any one suggest me some solutions or share his/her experince over similar issue. or please direct me to proper links if some details are given on web.

any reply or help is highly appreciated

thanks in advance

ankur maheshwari

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