1 files changed, 80 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/mac_oss.h b/arch/m68k/include/asm/mac_oss.h
new file mode 100644
index 000000000..56ef986c0
--- /dev/null
+++ b/arch/m68k/include/asm/mac_oss.h
@@ -0,0 +1,80 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ *	OSS
+ *
+ *	This is used in place of VIA2 on the IIfx.
+ */
+
+#define OSS_BASE	(0x50f1a000)
+
+/*
+ * Interrupt level offsets for mac_oss->irq_level
+ */
+
+#define OSS_NUBUS0	0
+#define OSS_NUBUS1	1
+#define OSS_NUBUS2	2
+#define OSS_NUBUS3	3
+#define OSS_NUBUS4	4
+#define OSS_NUBUS5	5
+#define OSS_IOPISM	6
+#define OSS_IOPSCC	7
+#define OSS_SOUND	8
+#define OSS_SCSI	9
+#define OSS_60HZ	10
+#define OSS_VIA1	11
+#define OSS_UNUSED1	12
+#define OSS_UNUSED2	13
+#define OSS_PARITY	14
+#define OSS_UNUSED3	15
+
+#define OSS_NUM_SOURCES	16
+
+/*
+ * Pending interrupt bits in mac_oss->irq_pending
+ */
+
+#define OSS_IP_NUBUS0	0x0001
+#define OSS_IP_NUBUS1	0x0002
+#define OSS_IP_NUBUS2	0x0004
+#define OSS_IP_NUBUS3	0x0008
+#define OSS_IP_NUBUS4	0x0010
+#define OSS_IP_NUBUS5	0x0020
+#define OSS_IP_IOPISM	0x0040
+#define OSS_IP_IOPSCC	0x0080
+#define OSS_IP_SOUND	0x0100
+#define OSS_IP_SCSI	0x0200
+#define OSS_IP_60HZ	0x0400
+#define OSS_IP_VIA1	0x0800
+#define OSS_IP_UNUSED1	0x1000
+#define OSS_IP_UNUSED2	0x2000
+#define OSS_IP_PARITY	0x4000
+#define OSS_IP_UNUSED3	0x8000
+
+#define OSS_IP_NUBUS (OSS_IP_NUBUS0|OSS_IP_NUBUS1|OSS_IP_NUBUS2|OSS_IP_NUBUS3|OSS_IP_NUBUS4|OSS_IP_NUBUS5)
+
+/*
+ * Rom Control Register
+ */
+
+#define OSS_POWEROFF	0x80
+
+#ifndef __ASSEMBLY__
+
+struct mac_oss {
+    __u8  irq_level[0x10];	/* [0x000-0x00f] Interrupt levels */
+    __u8  padding0[0x1F2];	/* [0x010-0x201] IO space filler */
+    __u16 irq_pending;		/* [0x202-0x203] pending interrupts bits */
+    __u8  rom_ctrl;		/* [0x204-0x204] ROM cntl reg (for poweroff) */
+    __u8  padding1[0x2];	/* [0x205-0x206] currently unused by A/UX */
+    __u8  ack_60hz;		/* [0x207-0x207] 60 Hz ack. */
+};
+
+extern volatile struct mac_oss *oss;
+extern int oss_present;
+
+extern void oss_register_interrupts(void);
+extern void oss_irq_enable(int);
+extern void oss_irq_disable(int);
+
+#endif /* __ASSEMBLY__ */