Bob, I was having similar problems about 2 months back. I was porting
the eb01/eb40 code over to an at91sam7se512. The uart PDC registers on
the sam7 are at higher addresses than they were on the eb40 [and
serial_atmel driver code]. Until I had located these registers
correctly [padding the corresponding struct] I got early output but it
stopped part way into the boot process (likely when interrupts were
turned on). Sounds similar to your experience, but may not be
relevant as I do not know what your target is.
Mike
rwarner wrote:
Glenn Henshaw wrote:
Has anyone experienced an issue with including the Atmel serial
driver and the console connection to the Atmel serial driver not
allowing the system to continue to boot.
If i do not have the Atmel serial driver built into the kernel image
the system boots to the romfs (/bin/init executed).
However if i have the Atmel serial driver built into the system (i
do get output on a serial connection) it does not complete the boot
process. It does not return from the flush_cpu_workqueue()
function, executed by flush_workqueue() at the end of the kernel
init sequence.
Just thought i'd ask if someone may have experienced this before and
knows a solution to it.
Which /bin/init are you using? The default for busybox (1.0.0) init
is to wait for a keypress on the console to continue. It may have
changed in later versions, or you can use an /etc/inittab file to
override it.
I'm using the init supplied in the uclinux distro 20070130. Though
i'm not sure what i've stated here came across. When i have the Atmel
serial driver working and compiled in the system it is not getting
further in the initialization to start booting the romfs.
thanks bob
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