2010-01-22 02:34:17 bfin_sport driver problem
Vinay Kumar (INDIA)
I am testing the bfin_sport driver, i tried to open and write some data to sport0, there was a crash and the board was restarting.
I tried to debug bfin_sport using printk, i found that after the line
its is crashing in sport_write() function.
i am building the kernel with uClinux-dist2008R1.5 and am using ADSP BF527 EZ-KIT LITE 1.4
What might be the problem.
2010-01-24 23:53:37 Re: bfin_sport driver problem
Cliff Cai (CHINA)
Could you post the kernel dump messages in here?Also,please try 2009r1 or 2009r1.1
2010-04-20 16:57:47 Re: bfin_sport driver problem
Tiago Reis (BRAZIL)
I'm having the same problem here, but using the board ADSP-BF526 EZ-BOARD. The problem is the same using 2009R1-RC6, 2009R1.1-RC4 and the trunk version. The execution just stops after the 'dev->regs->tcr1 |=TSPEN' on the sport_write function on bfin_sport driver, with no dump messages. If I put a printk() after this line, this printk is executed, but if I put two printk() only the first one is executed. This happens when configuring sport0 on both Port F and Port G.
First the bfin_sport conflicted with bfin_mac, but I resolved it using this tip: blackfin.uclinux.org/gf/project/uclinux-dist/forum/?_forum_action=ForumMessageBrowse&thread_id=33196&action=ForumBrowse
Now it just halts completely when I execute sport_test or echo something to /dev/sport0 and needs a hard reset. Any ideas? I'm attaching my .config file.
Thanks for your time.
2010-04-21 00:46:00 Re: bfin_sport driver problem
Sonic Zhang (CHINA)
The bfin_sport driver is designed for bf533 and bf537. It has never been tested on bf526. Please report a bug in our tracker.