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diff --git a/include/asm-mips/msc01_ic.h b/include/asm-mips/msc01_ic.h
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+++ b/include/asm-mips/msc01_ic.h
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+/*
+ * PCI Register definitions for the MIPS System Controller.
+ *
+ * Copyright (C) 2004 MIPS Technologies, Inc. All rights reserved.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#ifndef __ASM_MIPS_BOARDS_MSC01_IC_H
+#define __ASM_MIPS_BOARDS_MSC01_IC_H
+
+/*****************************************************************************
+ * Register offset addresses
+ *****************************************************************************/
+
+#define MSC01_IC_RST_OFS 0x00008 /* Software reset */
+#define MSC01_IC_ENAL_OFS 0x00100 /* Int_in enable mask 31:0 */
+#define MSC01_IC_ENAH_OFS 0x00108 /* Int_in enable mask 63:32 */
+#define MSC01_IC_DISL_OFS 0x00120 /* Int_in disable mask 31:0 */
+#define MSC01_IC_DISH_OFS 0x00128 /* Int_in disable mask 63:32 */
+#define MSC01_IC_ISBL_OFS 0x00140 /* Raw int_in 31:0 */
+#define MSC01_IC_ISBH_OFS 0x00148 /* Raw int_in 63:32 */
+#define MSC01_IC_ISAL_OFS 0x00160 /* Masked int_in 31:0 */
+#define MSC01_IC_ISAH_OFS 0x00168 /* Masked int_in 63:32 */
+#define MSC01_IC_LVL_OFS 0x00180 /* Disable priority int_out */
+#define MSC01_IC_RAMW_OFS 0x00180 /* Shadow set RAM (EI) */
+#define MSC01_IC_OSB_OFS 0x00188 /* Raw int_out */
+#define MSC01_IC_OSA_OFS 0x00190 /* Masked int_out */
+#define MSC01_IC_GENA_OFS 0x00198 /* Global HW int enable */
+#define MSC01_IC_BASE_OFS 0x001a0 /* Base address of IC_VEC */
+#define MSC01_IC_VEC_OFS 0x001b0 /* Active int's vector address */
+#define MSC01_IC_EOI_OFS 0x001c0 /* Enable lower level ints */
+#define MSC01_IC_CFG_OFS 0x001c8 /* Configuration register */
+#define MSC01_IC_TRLD_OFS 0x001d0 /* Interval timer reload val */
+#define MSC01_IC_TVAL_OFS 0x001e0 /* Interval timer current val */
+#define MSC01_IC_TCFG_OFS 0x001f0 /* Interval timer config */
+#define MSC01_IC_SUP_OFS 0x00200 /* Set up int_in line 0 */
+#define MSC01_IC_ENA_OFS 0x00800 /* Int_in enable mask 63:0 */
+#define MSC01_IC_DIS_OFS 0x00820 /* Int_in disable mask 63:0 */
+#define MSC01_IC_ISB_OFS 0x00840 /* Raw int_in 63:0 */
+#define MSC01_IC_ISA_OFS 0x00860 /* Masked int_in 63:0 */
+
+/*****************************************************************************
+ * Register field encodings
+ *****************************************************************************/
+
+#define MSC01_IC_RST_RST_SHF 0
+#define MSC01_IC_RST_RST_MSK 0x00000001
+#define MSC01_IC_RST_RST_BIT MSC01_IC_RST_RST_MSK
+#define MSC01_IC_LVL_LVL_SHF 0
+#define MSC01_IC_LVL_LVL_MSK 0x000000ff
+#define MSC01_IC_LVL_SPUR_SHF 16
+#define MSC01_IC_LVL_SPUR_MSK 0x00010000
+#define MSC01_IC_LVL_SPUR_BIT MSC01_IC_LVL_SPUR_MSK
+#define MSC01_IC_RAMW_RIPL_SHF 0
+#define MSC01_IC_RAMW_RIPL_MSK 0x0000003f
+#define MSC01_IC_RAMW_DATA_SHF 6
+#define MSC01_IC_RAMW_DATA_MSK 0x00000fc0
+#define MSC01_IC_RAMW_ADDR_SHF 25
+#define MSC01_IC_RAMW_ADDR_MSK 0x7e000000
+#define MSC01_IC_RAMW_READ_SHF 31
+#define MSC01_IC_RAMW_READ_MSK 0x80000000
+#define MSC01_IC_RAMW_READ_BIT MSC01_IC_RAMW_READ_MSK
+#define MSC01_IC_OSB_OSB_SHF 0
+#define MSC01_IC_OSB_OSB_MSK 0x000000ff
+#define MSC01_IC_OSA_OSA_SHF 0
+#define MSC01_IC_OSA_OSA_MSK 0x000000ff
+#define MSC01_IC_GENA_GENA_SHF 0
+#define MSC01_IC_GENA_GENA_MSK 0x00000001
+#define MSC01_IC_GENA_GENA_BIT MSC01_IC_GENA_GENA_MSK
+#define MSC01_IC_CFG_DIS_SHF 0
+#define MSC01_IC_CFG_DIS_MSK 0x00000001
+#define MSC01_IC_CFG_DIS_BIT MSC01_IC_CFG_DIS_MSK
+#define MSC01_IC_CFG_SHFT_SHF 8
+#define MSC01_IC_CFG_SHFT_MSK 0x00000f00
+#define MSC01_IC_TCFG_ENA_SHF 0
+#define MSC01_IC_TCFG_ENA_MSK 0x00000001
+#define MSC01_IC_TCFG_ENA_BIT MSC01_IC_TCFG_ENA_MSK
+#define MSC01_IC_TCFG_INT_SHF 8
+#define MSC01_IC_TCFG_INT_MSK 0x00000100
+#define MSC01_IC_TCFG_INT_BIT MSC01_IC_TCFG_INT_MSK
+#define MSC01_IC_TCFG_EDGE_SHF 16
+#define MSC01_IC_TCFG_EDGE_MSK 0x00010000
+#define MSC01_IC_TCFG_EDGE_BIT MSC01_IC_TCFG_EDGE_MSK
+#define MSC01_IC_SUP_PRI_SHF 0
+#define MSC01_IC_SUP_PRI_MSK 0x00000007
+#define MSC01_IC_SUP_EDGE_SHF 8
+#define MSC01_IC_SUP_EDGE_MSK 0x00000100
+#define MSC01_IC_SUP_EDGE_BIT MSC01_IC_SUP_EDGE_MSK
+#define MSC01_IC_SUP_STEP 8
+
+/*
+ * MIPS System controller interrupt register base.
+ *
+ * FIXME - are these macros specific to Malta and co or to the MSC? If the
+ * latter, they should be moved elsewhere.
+ */
+#define MIPS_MSC01_IC_REG_BASE 0x1bc40000
+
+/*****************************************************************************
+ * Absolute register addresses
+ *****************************************************************************/
+
+#define MSC01_IC_RST (MSC01_IC_REG_BASE + MSC01_IC_RST_OFS)
+#define MSC01_IC_ENAL (MSC01_IC_REG_BASE + MSC01_IC_ENAL_OFS)
+#define MSC01_IC_ENAH (MSC01_IC_REG_BASE + MSC01_IC_ENAH_OFS)
+#define MSC01_IC_DISL (MSC01_IC_REG_BASE + MSC01_IC_DISL_OFS)
+#define MSC01_IC_DISH (MSC01_IC_REG_BASE + MSC01_IC_DISH_OFS)
+#define MSC01_IC_ISBL (MSC01_IC_REG_BASE + MSC01_IC_ISBL_OFS)
+#define MSC01_IC_ISBH (MSC01_IC_REG_BASE + MSC01_IC_ISBH_OFS)
+#define MSC01_IC_ISAL (MSC01_IC_REG_BASE + MSC01_IC_ISAL_OFS)
+#define MSC01_IC_ISAH (MSC01_IC_REG_BASE + MSC01_IC_ISAH_OFS)
+#define MSC01_IC_LVL (MSC01_IC_REG_BASE + MSC01_IC_LVL_OFS)
+#define MSC01_IC_RAMW (MSC01_IC_REG_BASE + MSC01_IC_RAMW_OFS)
+#define MSC01_IC_OSB (MSC01_IC_REG_BASE + MSC01_IC_OSB_OFS)
+#define MSC01_IC_OSA (MSC01_IC_REG_BASE + MSC01_IC_OSA_OFS)
+#define MSC01_IC_GENA (MSC01_IC_REG_BASE + MSC01_IC_GENA_OFS)
+#define MSC01_IC_BASE (MSC01_IC_REG_BASE + MSC01_IC_BASE_OFS)
+#define MSC01_IC_VEC (MSC01_IC_REG_BASE + MSC01_IC_VEC_OFS)
+#define MSC01_IC_EOI (MSC01_IC_REG_BASE + MSC01_IC_EOI_OFS)
+#define MSC01_IC_CFG (MSC01_IC_REG_BASE + MSC01_IC_CFG_OFS)
+#define MSC01_IC_TRLD (MSC01_IC_REG_BASE + MSC01_IC_TRLD_OFS)
+#define MSC01_IC_TVAL (MSC01_IC_REG_BASE + MSC01_IC_TVAL_OFS)
+#define MSC01_IC_TCFG (MSC01_IC_REG_BASE + MSC01_IC_TCFG_OFS)
+#define MSC01_IC_SUP (MSC01_IC_REG_BASE + MSC01_IC_SUP_OFS)
+#define MSC01_IC_ENA (MSC01_IC_REG_BASE + MSC01_IC_ENA_OFS)
+#define MSC01_IC_DIS (MSC01_IC_REG_BASE + MSC01_IC_DIS_OFS)
+#define MSC01_IC_ISB (MSC01_IC_REG_BASE + MSC01_IC_ISB_OFS)
+#define MSC01_IC_ISA (MSC01_IC_REG_BASE + MSC01_IC_ISA_OFS)
+
+/*
+ * Soc-it interrupts are configurable.
+ * Every board describes its IRQ mapping with this table.
+ */
+typedef struct msc_irqmap {
+ int im_irq;
+ int im_type;
+ int im_lvl;
+} msc_irqmap_t;
+
+/* im_type */
+#define MSC01_IRQ_LEVEL 0
+#define MSC01_IRQ_EDGE 1
+
+extern void __init init_msc_irqs(unsigned int base, msc_irqmap_t *imp, int nirq);
+extern void ll_msc_irq(struct pt_regs *regs);
+
+#endif /* __ASM_MIPS_BOARDS_MSC01_IC_H */
+