ARM-cortex 9: Want to enable watchdog interrupt ID30 as FIQ and rest all interrupts as IRQ

ARM-cortex 9: Want to enable watchdog interrupt ID30 as FIQ and rest all interrupts as IRQ

[Shariff Md]

Hi,

Our development board is based on ARM cortex a9 with linux-2.6.28.

Our requirement is to enable watchdog interrupt ID(30) as FIQ and rest all
interrupts as IRQ.

For this, I configured all interrupts as Non secure interrupts except
watchdog interrupt(which
was configured as secured). With this change linux kernel has hanged(Kernel
log below after
hang).

I made watchdog interrupt as Secure interrupt to enable secure interrupt as
FIQ with "ICCICR"
register.

Does making all interrupts as Non secure interrupt will not work?

Kernel bootup hang log:
-----------------------
Linux version 2.6.28.10-arm2-1.82.1-rc11 (turner at debian) (gcc version 4.3.2
(Sourcery G++ Lite
2008q3-72) ) #22 SMP Tue Dec 18 20:33:49 IST 2012
CPU: ARMv7 Processor [411fc090] revision 0 (ARMv7), cr=10c53c7f
CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Machine: Transcede
Device revision: x7
Memory policy: ECC disabled, Data cache writealloc
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 130048
Kernel command line: root=/dev/mtdblock3 rootfstype=jffs2 rw mem=512M
earlycon=uart8250,mmio,0xfe092000,115200n8 console=ttyS0 user_debug=11
panic=10
Early serial console at MMIO 0xfe092000 (options '115200n8')
console [uart0] enabled
PID hash table entries: 2048 (order: 11, 8192 bytes)
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 512MB = 512MB total
Memory: 514560KB available (4224K code, 355K data, 132K init)
Calibrating delay loop...

Regards,
Shariff
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20121219/479d4ebf/attachment-0001.html>

ARM-cortex 9: Want to enable watchdog interrupt ID30 as FIQ and rest all interrupts as IRQ

[Shariff Md]

> Hi,
>
> Our development board is based on ARM cortex a9 with linux-2.6.28.
>
> Our requirement is to enable watchdog interrupt ID(30) as FIQ and rest all
> interrupts as IRQ.
>
> For this, I configured all interrupts as Non secure interrupts except
> watchdog interrupt(which
> was configured as secured). With this change linux kernel has
> hanged(Kernel log below after
> hang).
>
> I made watchdog interrupt as Secure interrupt to enable secure interrupt
> as FIQ with "ICCICR"
> register.
>
> Does making all interrupts as Non secure interrupt will not work?
>
> Kernel bootup hang log:
> -----------------------
> Linux version 2.6.28.10-arm2-1.82.1-rc11 (turner at debian) (gcc version
> 4.3.2 (Sourcery G++ Lite
> 2008q3-72) ) #22 SMP Tue Dec 18 20:33:49 IST 2012
> CPU: ARMv7 Processor [411fc090] revision 0 (ARMv7), cr=10c53c7f
> CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
> Machine: Transcede
> Device revision: x7
> Memory policy: ECC disabled, Data cache writealloc
> Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 130048
> Kernel command line: root=/dev/mtdblock3 rootfstype=jffs2 rw mem=512M
> earlycon=uart8250,mmio,0xfe092000,115200n8 console=ttyS0 user_debug=11
> panic=10
> Early serial console at MMIO 0xfe092000 (options '115200n8')
> console [uart0] enabled
> PID hash table entries: 2048 (order: 11, 8192 bytes)
> Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
> Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
> Memory: 512MB = 512MB total
> Memory: 514560KB available (4224K code, 355K data, 132K init)
> Calibrating delay loop...
>
> Regards,
> Shariff
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20121219/304bebe7/attachment-0001.html>