1 files changed, 83 insertions, 0 deletions
diff --git a/arch/sh/boards/dreamcast/setup.c b/arch/sh/boards/dreamcast/setup.c
new file mode 100644
index 0000000..55dece3
--- /dev/null
+++ b/arch/sh/boards/dreamcast/setup.c
@@ -0,0 +1,83 @@
+/*
+ * arch/sh/boards/dreamcast/setup.c
+ *
+ * Hardware support for the Sega Dreamcast.
+ *
+ * Copyright (c) 2001, 2002 M. R. Brown <mrbrown@linuxdc.org>
+ * Copyright (c) 2002, 2003, 2004 Paul Mundt <lethal@linux-sh.org>
+ *
+ * This file is part of the LinuxDC project (www.linuxdc.org)
+ *
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * This file originally bore the message (with enclosed-$):
+ *	Id: setup_dc.c,v 1.5 2001/05/24 05:09:16 mrbrown Exp
+ *	SEGA Dreamcast support
+ */
+
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/device.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/machvec.h>
+#include <asm/machvec_init.h>
+#include <asm/mach/sysasic.h>
+
+extern struct hw_interrupt_type systemasic_int;
+/* XXX: Move this into it's proper header. */
+extern void (*board_time_init)(void);
+extern void aica_time_init(void);
+extern int gapspci_init(void);
+extern int systemasic_irq_demux(int);
+
+void *dreamcast_consistent_alloc(struct device *, size_t, dma_addr_t *, int);
+int dreamcast_consistent_free(struct device *, size_t, void *, dma_addr_t);
+
+const char *get_system_type(void)
+{
+	return "Sega Dreamcast";
+}
+
+struct sh_machine_vector mv_dreamcast __initmv = {
+	.mv_nr_irqs		= NR_IRQS,
+
+	.mv_irq_demux		= systemasic_irq_demux,
+
+#ifdef CONFIG_PCI
+	.mv_consistent_alloc	= dreamcast_consistent_alloc,
+	.mv_consistent_free	= dreamcast_consistent_free,
+#endif
+};
+ALIAS_MV(dreamcast)
+
+int __init platform_setup(void)
+{
+	int i;
+
+	/* Mask all hardware events */
+	/* XXX */
+
+	/* Acknowledge any previous events */
+	/* XXX */
+
+	__set_io_port_base(0xa0000000);
+
+	/* Assign all virtual IRQs to the System ASIC int. handler */
+	for (i = HW_EVENT_IRQ_BASE; i < HW_EVENT_IRQ_MAX; i++)
+		irq_desc[i].handler = &systemasic_int;
+
+	board_time_init = aica_time_init;
+
+#ifdef CONFIG_PCI
+	if (gapspci_init() < 0)
+		printk(KERN_WARNING "GAPSPCI was not detected.\n");
+#endif
+
+	return 0;
+}