65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* ARM RealView Emulation Baseboard Interrupt Controller
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*
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* Copyright (c) 2006-2007 CodeSourcery.
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* Written by Paul Brook
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*
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* This code is licenced under the GPL.
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*/
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#include "vl.h"
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#include "arm_pic.h"
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#define GIC_NIRQ 96
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#define NCPU 1
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/* Only a single "CPU" interface is present. */
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static inline int
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gic_get_current_cpu(void)
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{
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return 0;
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}
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#include "arm_gic.c"
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static uint32_t realview_gic_cpu_read(void *opaque, target_phys_addr_t offset)
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{
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gic_state *s = (gic_state *)opaque;
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offset -= s->base;
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return gic_cpu_read(s, gic_get_current_cpu(), offset);
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}
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static void realview_gic_cpu_write(void *opaque, target_phys_addr_t offset,
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uint32_t value)
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{
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gic_state *s = (gic_state *)opaque;
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offset -= s->base;
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gic_cpu_write(s, gic_get_current_cpu(), offset, value);
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}
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static CPUReadMemoryFunc *realview_gic_cpu_readfn[] = {
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realview_gic_cpu_read,
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realview_gic_cpu_read,
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realview_gic_cpu_read
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};
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static CPUWriteMemoryFunc *realview_gic_cpu_writefn[] = {
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realview_gic_cpu_write,
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realview_gic_cpu_write,
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realview_gic_cpu_write
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};
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qemu_irq *realview_gic_init(uint32_t base, qemu_irq parent_irq)
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{
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gic_state *s;
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int iomemtype;
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s = gic_init(base, &parent_irq);
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if (!s)
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return NULL;
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iomemtype = cpu_register_io_memory(0, realview_gic_cpu_readfn,
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realview_gic_cpu_writefn, s);
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cpu_register_physical_memory(base, 0x00001000, iomemtype);
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return s->in;
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}
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