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authorOlof Johansson <olof@lixom.net>2007-12-20 13:11:18 -0600
committerOlof Johansson <olof@lixom.net>2007-12-28 09:22:24 -0600
commitf365355e65ee619e3b7baeca69b46fd2c4a5ec68 (patch)
tree24133f987dc9ffe8f3a9b02355193e3d5113f8f2 /arch/powerpc/sysdev/mpc8xx_pic.c
parentc2a7dcad9f0d92d7a96e735abb8bec7b9c621536 (diff)
[POWERPC] pasemi: Implement NMI support
Some PWRficient-based boards have a NMI button that's wired up to a GPIO as interrupt source. By configuring the openpic accordingly, these get delivered as a machine check with high priority, instead of as an external interrupt. The device tree contains a property "nmi-source" in the openpic node for these systems, and it's the (hwirq) source for the input. Also, for these interrupts, the IACK is read from another register than the regular (MCACK instead), but they are EOI'd as usual. So implement said function for the mpic driver. Finally, move a couple of external function defines to include/ instead of local under sysdev. Being able to mask/unmask and eoi directly saves us from setting up a dummy irq handler that will never be called. Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/powerpc/sysdev/mpc8xx_pic.c')
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