Hello...
1. After making sure that the stty/termio settings on the console port
have "brkint", I tried sending a break (kermit, minicom and reverse
telnet on BDI). The break does not seem to generate SIGINT.
What could I be missing, or doing wrong? Or is my understanding
incorrect of the brkint termio flag?
2. I would like to use the SAK/sysrq on the serial console. One thing
seems to be missing is ASYNC_SAK flag in the ser_info_t->flags.
So, I added it in the 8260_io/uart.c:startup(...). Also, made sure
that /proc/sys/kernel/sysrq has "1" in it. With this much, I tried sending
a break on the console followed by "t" (and other SAK feature keys).
No luck.
Could this be related to (1) above? What about the missing flag
ASYNC_SAK in the ser_info_t info struct?
3. During Linux kernel bootup, ppc_md.progress(...) is called in a number
of places. This is before the serial console is initialized. On the
8260 configuration, the ppc_md.progress(...) is NULL. Has this been
been fixed by anyone for the 8260 configuration?
On the board I use, PPCBoot is the bootloader/monitor. So, I copied
over the serial_putc()/serial_puts() routines to uart.c (ofcourse, the
modified to use the same DPRAM settings/addresses as used by
PPCBoot.
With BDI, I can see that this ppc_md.progress()-->serial_puts()-->
serial_putc() is called. But,
volatile cbd_t tbdf = (cbd_t *)&im->im_dprambase[up->smc_tbase];
Seems to cause an exception in machine_init() the first time it is
called. Also, up does point to 0xf0000040 (in IMAP/IMMR).
My guess is that this is do with the address translations which are
not setup at this instance during startup. I am not sure how to fix
this - if this is the case. How do I get this to work?
Best regards,
-Arun.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
