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| author | Dan Williams <dan.j.williams@intel.com> | 2007-02-13 17:12:04 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2007-02-14 15:21:24 +0000 |
| commit | 588ef7693574cfbcb228f48d5478c2b39a9b0c9f (patch) | |
| tree | 6cc5ac8e7d2544514ab405357f01a91da8471780 /arch/arm/mach-iop13xx | |
| parent | dfc544c7216b276c1e9c0c753299692df4068c44 (diff) | |
| download | linux-588ef7693574cfbcb228f48d5478c2b39a9b0c9f.tar.gz linux-588ef7693574cfbcb228f48d5478c2b39a9b0c9f.tar.bz2 linux-588ef7693574cfbcb228f48d5478c2b39a9b0c9f.zip | |
[ARM] 4184/1: iop: cp6 access handler (undef_hook)
Enable svc access to cp6 via an undefined instruction hook. Do not enable
access for usr code.
This patch also makes iop13xx select PLAT_IOP, this requires a small change
to drivers/i2c/busses/i2c-iop3xx.c.
Per Lennert Buytenhek's note, the cp6 trap routine is moved to arch/arm/plat-iop
Per Nicolas Pitre's note, the cp_wait is skipped since the latency to
return to the faulting function is longer than cp_wait.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-iop13xx')
| -rw-r--r-- | arch/arm/mach-iop13xx/irq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mach-iop13xx/irq.c b/arch/arm/mach-iop13xx/irq.c index dbbc07c38b14..162b93214965 100644 --- a/arch/arm/mach-iop13xx/irq.c +++ b/arch/arm/mach-iop13xx/irq.c @@ -250,11 +250,14 @@ static struct irq_chip iop13xx_irqchip4 = { .unmask = iop13xx_irq_unmask3, }; +extern void iop_init_cp6_handler(void); + void __init iop13xx_init_irq(void) { unsigned int i; u32 cp_flags = iop13xx_cp6_save(); + iop_init_cp6_handler(); /* disable all interrupts */ write_intctl_0(0); |