4 files changed, 137 insertions, 0 deletions
diff --git a/arch/sh/include/mach-dreamcast/mach/dma.h b/arch/sh/include/mach-dreamcast/mach/dma.h
new file mode 100644
index 000000000..a773a7638
--- /dev/null
+++ b/arch/sh/include/mach-dreamcast/mach/dma.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * include/asm-sh/dreamcast/dma.h
+ *
+ * Copyright (C) 2003 Paul Mundt
+ */
+#ifndef __ASM_SH_DREAMCAST_DMA_H
+#define __ASM_SH_DREAMCAST_DMA_H
+
+/* Number of DMA channels */
+#define G2_NR_DMA_CHANNELS	4
+
+/* Channels for cascading */
+#define PVR2_CASCADE_CHAN	2
+#define G2_CASCADE_CHAN		3
+
+/* PVR2 DMA Registers */
+#define PVR2_DMA_BASE		0xa05f6800
+#define PVR2_DMA_ADDR		(PVR2_DMA_BASE + 0)
+#define PVR2_DMA_COUNT		(PVR2_DMA_BASE + 4)
+#define PVR2_DMA_MODE		(PVR2_DMA_BASE + 8)
+#define PVR2_DMA_LMMODE0	(PVR2_DMA_BASE + 132)
+#define PVR2_DMA_LMMODE1	(PVR2_DMA_BASE + 136)
+
+/* G2 DMA Register */
+#define G2_DMA_BASE		0xa05f7800
+
+#endif /* __ASM_SH_DREAMCAST_DMA_H */
+
diff --git a/arch/sh/include/mach-dreamcast/mach/maple.h b/arch/sh/include/mach-dreamcast/mach/maple.h
new file mode 100644
index 000000000..169bdf415
--- /dev/null
+++ b/arch/sh/include/mach-dreamcast/mach/maple.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_MAPLE_H
+#define __ASM_MAPLE_H
+
+#define MAPLE_PORTS 4
+#define MAPLE_PNP_INTERVAL HZ
+#define MAPLE_MAXPACKETS 8
+#define MAPLE_DMA_ORDER 14
+#define MAPLE_DMA_SIZE (1 << MAPLE_DMA_ORDER)
+#define MAPLE_DMA_PAGES ((MAPLE_DMA_ORDER > PAGE_SHIFT) ? \
+			  MAPLE_DMA_ORDER - PAGE_SHIFT : 0)
+
+/* Maple Bus registers */
+#define MAPLE_BASE     0xa05f6c00
+#define MAPLE_DMAADDR  (MAPLE_BASE+0x04)
+#define MAPLE_TRIGTYPE (MAPLE_BASE+0x10)
+#define MAPLE_ENABLE   (MAPLE_BASE+0x14)
+#define MAPLE_STATE    (MAPLE_BASE+0x18)
+#define MAPLE_SPEED    (MAPLE_BASE+0x80)
+#define MAPLE_RESET    (MAPLE_BASE+0x8c)
+
+#define MAPLE_MAGIC    0x6155404f
+#define MAPLE_2MBPS    0
+#define MAPLE_TIMEOUT(n) ((n)<<15)
+
+/* Function codes */
+#define MAPLE_FUNC_CONTROLLER 0x001
+#define MAPLE_FUNC_MEMCARD    0x002
+#define MAPLE_FUNC_LCD        0x004
+#define MAPLE_FUNC_CLOCK      0x008
+#define MAPLE_FUNC_MICROPHONE 0x010
+#define MAPLE_FUNC_ARGUN      0x020
+#define MAPLE_FUNC_KEYBOARD   0x040
+#define MAPLE_FUNC_LIGHTGUN   0x080
+#define MAPLE_FUNC_PURUPURU   0x100
+#define MAPLE_FUNC_MOUSE      0x200
+
+#endif /* __ASM_MAPLE_H */
diff --git a/arch/sh/include/mach-dreamcast/mach/pci.h b/arch/sh/include/mach-dreamcast/mach/pci.h
new file mode 100644
index 000000000..c037c1ec6
--- /dev/null
+++ b/arch/sh/include/mach-dreamcast/mach/pci.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * include/asm-sh/dreamcast/pci.h
+ *
+ * Copyright (C) 2001, 2002  M. R. Brown
+ * Copyright (C) 2002, 2003  Paul Mundt
+ */
+#ifndef __ASM_SH_DREAMCAST_PCI_H
+#define __ASM_SH_DREAMCAST_PCI_H
+
+#include <mach-dreamcast/mach/sysasic.h>
+
+#define	GAPSPCI_REGS		0x01001400
+#define GAPSPCI_DMA_BASE	0x01840000
+#define GAPSPCI_DMA_SIZE	32768
+#define GAPSPCI_BBA_CONFIG	0x01001600
+#define GAPSPCI_BBA_CONFIG_SIZE	0x2000
+
+#define	GAPSPCI_IRQ		HW_EVENT_EXTERNAL
+
+extern struct pci_ops gapspci_pci_ops;
+
+#endif /* __ASM_SH_DREAMCAST_PCI_H */
+
diff --git a/arch/sh/include/mach-dreamcast/mach/sysasic.h b/arch/sh/include/mach-dreamcast/mach/sysasic.h
new file mode 100644
index 000000000..ed69ce7f2
--- /dev/null
+++ b/arch/sh/include/mach-dreamcast/mach/sysasic.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * include/asm-sh/dreamcast/sysasic.h
+ *
+ * Definitions for the Dreamcast System ASIC and related peripherals.
+ *
+ * Copyright (c) 2001 M. R. Brown <mrbrown@linuxdc.org>
+ * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org>
+ *
+ * This file is part of the LinuxDC project (www.linuxdc.org)
+ */
+#ifndef __ASM_SH_DREAMCAST_SYSASIC_H
+#define __ASM_SH_DREAMCAST_SYSASIC_H
+
+#include <asm/irq.h>
+
+/* Hardware events -
+
+   Each of these events correspond to a bit within the Event Mask Registers/
+   Event Status Registers.  Because of the virtual IRQ numbering scheme, a
+   base offset must be used when calculating the virtual IRQ that each event
+   takes.
+*/
+
+#define HW_EVENT_IRQ_BASE  48
+
+/* IRQ 13 */
+#define HW_EVENT_VSYNC     (HW_EVENT_IRQ_BASE +  5) /* VSync */
+#define HW_EVENT_MAPLE_DMA (HW_EVENT_IRQ_BASE + 12) /* Maple DMA complete */
+#define HW_EVENT_GDROM_DMA (HW_EVENT_IRQ_BASE + 14) /* GD-ROM DMA complete */
+#define HW_EVENT_G2_DMA    (HW_EVENT_IRQ_BASE + 15) /* G2 DMA complete */
+#define HW_EVENT_PVR2_DMA  (HW_EVENT_IRQ_BASE + 19) /* PVR2 DMA complete */
+
+/* IRQ 11 */
+#define HW_EVENT_GDROM_CMD (HW_EVENT_IRQ_BASE + 32) /* GD-ROM cmd. complete */
+#define HW_EVENT_AICA_SYS  (HW_EVENT_IRQ_BASE + 33) /* AICA-related */
+#define HW_EVENT_EXTERNAL  (HW_EVENT_IRQ_BASE + 35) /* Ext. (expansion) */
+
+#define HW_EVENT_IRQ_MAX (HW_EVENT_IRQ_BASE + 95)
+
+/* arch/sh/boards/mach-dreamcast/irq.c */
+extern int systemasic_irq_demux(int);
+extern void systemasic_irq_init(void);
+
+#endif /* __ASM_SH_DREAMCAST_SYSASIC_H */
+