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authorpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2007-11-11 00:04:49 +0000
committerpbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>2007-11-11 00:04:49 +0000
commit9ee6e8bb853bdea7ef6c645a1a07aa55fd206aba (patch)
tree1cd430d3d9ac641c8550cfd8956dbcce1a4b9121 /hw/realview_gic.c
parentee4e83ed8ddc8dac572a0123398adf78b63014ae (diff)
ARMv7 support.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3572 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/realview_gic.c')
-rw-r--r--hw/realview_gic.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/hw/realview_gic.c b/hw/realview_gic.c
new file mode 100644
index 0000000000..cbc961491c
--- /dev/null
+++ b/hw/realview_gic.c
@@ -0,0 +1,64 @@
+/*
+ * ARM RealView Emulation Baseboard Interrupt Controller
+ *
+ * Copyright (c) 2006-2007 CodeSourcery.
+ * Written by Paul Brook
+ *
+ * This code is licenced under the GPL.
+ */
+
+#include "vl.h"
+#include "arm_pic.h"
+
+#define GIC_NIRQ 96
+#define NCPU 1
+
+/* Only a single "CPU" interface is present. */
+static inline int
+gic_get_current_cpu(void)
+{
+ return 0;
+}
+
+#include "arm_gic.c"
+
+static uint32_t realview_gic_cpu_read(void *opaque, target_phys_addr_t offset)
+{
+ gic_state *s = (gic_state *)opaque;
+ offset -= s->base;
+ return gic_cpu_read(s, gic_get_current_cpu(), offset);
+}
+
+static void realview_gic_cpu_write(void *opaque, target_phys_addr_t offset,
+ uint32_t value)
+{
+ gic_state *s = (gic_state *)opaque;
+ offset -= s->base;
+ gic_cpu_write(s, gic_get_current_cpu(), offset, value);
+}
+
+static CPUReadMemoryFunc *realview_gic_cpu_readfn[] = {
+ realview_gic_cpu_read,
+ realview_gic_cpu_read,
+ realview_gic_cpu_read
+};
+
+static CPUWriteMemoryFunc *realview_gic_cpu_writefn[] = {
+ realview_gic_cpu_write,
+ realview_gic_cpu_write,
+ realview_gic_cpu_write
+};
+
+qemu_irq *realview_gic_init(uint32_t base, qemu_irq parent_irq)
+{
+ gic_state *s;
+ int iomemtype;
+
+ s = gic_init(base, &parent_irq);
+ if (!s)
+ return NULL;
+ iomemtype = cpu_register_io_memory(0, realview_gic_cpu_readfn,
+ realview_gic_cpu_writefn, s);
+ cpu_register_physical_memory(base, 0x00001000, iomemtype);
+ return s->in;
+}