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path: root/arch/powerpc/sysdev/i8259.c
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2005-11-07[PATCH] powerpc: Fix i8259 cascade IRQDavid Woodhouse
setup_irq() aborts immediately if there's no handler for the IRQ in question. So i8259_init() should set up its handlers before trying to set up the cascade on IRQ 2. With this and the patch I sent a few days ago to fix initrd on ppc32, my Pegasos now runs the arch/powerpc kernel. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26powerpc: Merge i8259.c into arch/powerpc/sysdevPaul Mackerras
This changes the parameters for i8259_init so that it takes two parameters: a physical address for generating an interrupt acknowledge cycle, and an interrupt number offset. i8259_init now sets the irq_desc[] for its interrupts; all the callers were doing this, and that code is gone now. This also defines a CONFIG_PPC_I8259 symbol to select i8259.o for inclusion, and makes the platforms that need it select that symbol. Signed-off-by: Paul Mackerras <paulus@samba.org>