diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 9541171f1220070d7d441718b7720489a6833cb7..8b5d174685f002dd32936781ec3284e37432ddc5 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1311,6 +1311,7 @@ config SYS_SUPPORTS_ZBOOT
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_LZMA
+	select HAVE_KERNEL_LZO
 
 config SYS_SUPPORTS_ZBOOT_UART16550
 	bool
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 671d3448fad4e327df0acab143a5bc39e1ed691c..9df903d714d72995fc9313e1ee66ffe8a44ed20f 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -14,8 +14,11 @@
 
 # compressed kernel load addr: VMLINUZ_LOAD_ADDRESS > VMLINUX_LOAD_ADDRESS + VMLINUX_SIZE
 VMLINUX_SIZE := $(shell wc -c $(objtree)/$(KBUILD_IMAGE) 2>/dev/null | cut -d' ' -f1)
-VMLINUX_SIZE := $(shell [ -n "$(VMLINUX_SIZE)" ] && echo $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536))))
-VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" ] && printf %x $$(($(VMLINUX_LOAD_ADDRESS) + $(VMLINUX_SIZE))))
+VMLINUX_SIZE := $(shell [ -n "$(VMLINUX_SIZE)" ] && echo -n $$(($(VMLINUX_SIZE) + (65536 - $(VMLINUX_SIZE) % 65536))))
+# VMLINUZ_LOAD_ADDRESS = concat "high32 of VMLINUX_LOAD_ADDRESS" and "(low32 of VMLINUX_LOAD_ADDRESS) + VMLINUX_SIZE"
+HIGH32 := $(shell A=$(VMLINUX_LOAD_ADDRESS); [ $${\#A} -gt 10 ] && expr substr "$(VMLINUX_LOAD_ADDRESS)" 3 $$(($${\#A} - 10)))
+LOW32 := $(shell [ -n "$(HIGH32)" ] && A=11 || A=3; expr substr "$(VMLINUX_LOAD_ADDRESS)" $${A} 8)
+VMLINUZ_LOAD_ADDRESS := 0x$(shell [ -n "$(VMLINUX_SIZE)" -a -n "$(LOW32)" ] && printf "$(HIGH32)%08x" $$(($(VMLINUX_SIZE) + 0x$(LOW32))))
 
 # set the default size of the mallocing area for decompressing
 BOOT_HEAP_SIZE := 0x400000
@@ -41,9 +44,11 @@ $(obj)/vmlinux.bin: $(KBUILD_IMAGE)
 suffix_$(CONFIG_KERNEL_GZIP)  = gz
 suffix_$(CONFIG_KERNEL_BZIP2) = bz2
 suffix_$(CONFIG_KERNEL_LZMA)  = lzma
+suffix_$(CONFIG_KERNEL_LZO)   = lzo
 tool_$(CONFIG_KERNEL_GZIP)    = gzip
 tool_$(CONFIG_KERNEL_BZIP2)   = bzip2
 tool_$(CONFIG_KERNEL_LZMA)    = lzma
+tool_$(CONFIG_KERNEL_LZO)     = lzo
 $(obj)/vmlinux.$(suffix_y): $(obj)/vmlinux.bin
 	$(call if_changed,$(tool_y))
 
diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c
index e48fd72898a877cba114fbf6fabea77929b198a2..55d02b3a67122e40d94350d70f1d5a61c960fef4 100644
--- a/arch/mips/boot/compressed/decompress.c
+++ b/arch/mips/boot/compressed/decompress.c
@@ -77,6 +77,10 @@ void *memset(void *s, int c, size_t n)
 #include "../../../../lib/decompress_unlzma.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
 void decompress_kernel(unsigned long boot_heap_start)
 {
 	int zimage_size;
diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h
index 06960364c96b961a2a91eb5432c8e318309659b8..dea4aed6478f7de6652c8b5491ebfc165cf52d53 100644
--- a/arch/mips/include/asm/irq.h
+++ b/arch/mips/include/asm/irq.h
@@ -135,6 +135,7 @@ extern void free_irqno(unsigned int irq);
 #define CP0_LEGACY_COMPARE_IRQ 7
 
 extern int cp0_compare_irq;
+extern int cp0_compare_irq_shift;
 extern int cp0_perfcount_irq;
 
 #endif /* _ASM_IRQ_H */
diff --git a/arch/mips/include/asm/mach-powertv/asic_reg_map.h b/arch/mips/include/asm/mach-powertv/asic_reg_map.h
new file mode 100644
index 0000000000000000000000000000000000000000..6f26cb09828ed4aecf4574e5451ecbc331ad8e05
--- /dev/null
+++ b/arch/mips/include/asm/mach-powertv/asic_reg_map.h
@@ -0,0 +1,90 @@
+/*
+ *				asic_reg_map.h
+ *
+ * A macro-enclosed list of the elements for the register_map structure for
+ * use in defining and manipulating the structure.
+ *
+ * Copyright (C) 2009  Cisco Systems, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+REGISTER_MAP_ELEMENT(eic_slow0_strt_add)
+REGISTER_MAP_ELEMENT(eic_cfg_bits)
+REGISTER_MAP_ELEMENT(eic_ready_status)
+REGISTER_MAP_ELEMENT(chipver3)
+REGISTER_MAP_ELEMENT(chipver2)
+REGISTER_MAP_ELEMENT(chipver1)
+REGISTER_MAP_ELEMENT(chipver0)
+REGISTER_MAP_ELEMENT(uart1_intstat)
+REGISTER_MAP_ELEMENT(uart1_inten)
+REGISTER_MAP_ELEMENT(uart1_config1)
+REGISTER_MAP_ELEMENT(uart1_config2)
+REGISTER_MAP_ELEMENT(uart1_divisorhi)
+REGISTER_MAP_ELEMENT(uart1_divisorlo)
+REGISTER_MAP_ELEMENT(uart1_data)
+REGISTER_MAP_ELEMENT(uart1_status)
+REGISTER_MAP_ELEMENT(int_stat_3)
+REGISTER_MAP_ELEMENT(int_stat_2)
+REGISTER_MAP_ELEMENT(int_stat_1)
+REGISTER_MAP_ELEMENT(int_stat_0)
+REGISTER_MAP_ELEMENT(int_config)
+REGISTER_MAP_ELEMENT(int_int_scan)
+REGISTER_MAP_ELEMENT(ien_int_3)
+REGISTER_MAP_ELEMENT(ien_int_2)
+REGISTER_MAP_ELEMENT(ien_int_1)
+REGISTER_MAP_ELEMENT(ien_int_0)
+REGISTER_MAP_ELEMENT(int_level_3_3)
+REGISTER_MAP_ELEMENT(int_level_3_2)
+REGISTER_MAP_ELEMENT(int_level_3_1)
+REGISTER_MAP_ELEMENT(int_level_3_0)
+REGISTER_MAP_ELEMENT(int_level_2_3)
+REGISTER_MAP_ELEMENT(int_level_2_2)
+REGISTER_MAP_ELEMENT(int_level_2_1)
+REGISTER_MAP_ELEMENT(int_level_2_0)
+REGISTER_MAP_ELEMENT(int_level_1_3)
+REGISTER_MAP_ELEMENT(int_level_1_2)
+REGISTER_MAP_ELEMENT(int_level_1_1)
+REGISTER_MAP_ELEMENT(int_level_1_0)
+REGISTER_MAP_ELEMENT(int_level_0_3)
+REGISTER_MAP_ELEMENT(int_level_0_2)
+REGISTER_MAP_ELEMENT(int_level_0_1)
+REGISTER_MAP_ELEMENT(int_level_0_0)
+REGISTER_MAP_ELEMENT(int_docsis_en)
+REGISTER_MAP_ELEMENT(mips_pll_setup)
+REGISTER_MAP_ELEMENT(usb_fs)
+REGISTER_MAP_ELEMENT(test_bus)
+REGISTER_MAP_ELEMENT(crt_spare)
+REGISTER_MAP_ELEMENT(usb2_ohci_int_mask)
+REGISTER_MAP_ELEMENT(usb2_strap)
+REGISTER_MAP_ELEMENT(ehci_hcapbase)
+REGISTER_MAP_ELEMENT(ohci_hc_revision)
+REGISTER_MAP_ELEMENT(bcm1_bs_lmi_steer)
+REGISTER_MAP_ELEMENT(usb2_control)
+REGISTER_MAP_ELEMENT(usb2_stbus_obc)
+REGISTER_MAP_ELEMENT(usb2_stbus_mess_size)
+REGISTER_MAP_ELEMENT(usb2_stbus_chunk_size)
+REGISTER_MAP_ELEMENT(pcie_regs)
+REGISTER_MAP_ELEMENT(tim_ch)
+REGISTER_MAP_ELEMENT(tim_cl)
+REGISTER_MAP_ELEMENT(gpio_dout)
+REGISTER_MAP_ELEMENT(gpio_din)
+REGISTER_MAP_ELEMENT(gpio_dir)
+REGISTER_MAP_ELEMENT(watchdog)
+REGISTER_MAP_ELEMENT(front_panel)
+REGISTER_MAP_ELEMENT(misc_clk_ctl1)
+REGISTER_MAP_ELEMENT(misc_clk_ctl2)
+REGISTER_MAP_ELEMENT(crt_ext_ctl)
+REGISTER_MAP_ELEMENT(register_maps)
diff --git a/arch/mips/include/asm/mach-powertv/asic_regs.h b/arch/mips/include/asm/mach-powertv/asic_regs.h
index 9a65c93782f94d7d37b9c488cc8703d7f820b809..1e11236c6dbcaf4b4968f64abb6bdd2c801c5aac 100644
--- a/arch/mips/include/asm/mach-powertv/asic_regs.h
+++ b/arch/mips/include/asm/mach-powertv/asic_regs.h
@@ -35,11 +35,12 @@ enum asic_type {
 #define CRONUS_11	0x0B4C1C21
 #define CRONUSLITE_10	0x0B4C1C40
 
-#define NAND_FLASH_BASE	0x03000000
-#define ZEUS_IO_BASE	0x09000000
+#define NAND_FLASH_BASE		0x03000000
 #define CALLIOPE_IO_BASE	0x08000000
-#define CRONUS_IO_BASE	0x09000000
-#define ASIC_IO_SIZE	0x01000000
+#define CRONUS_IO_BASE		0x09000000
+#define ZEUS_IO_BASE		0x09000000
+
+#define ASIC_IO_SIZE		0x01000000
 
 /* Definitions for backward compatibility */
 #define UART1_INTSTAT	uart1_intstat
@@ -52,96 +53,62 @@ enum asic_type {
 #define UART1_STATUS	uart1_status
 
 /* ASIC register enumeration */
+union register_map_entry {
+	unsigned long phys;
+	u32 *virt;
+};
+
+#define REGISTER_MAP_ELEMENT(x) union register_map_entry x;
 struct register_map {
-	u32 eic_slow0_strt_add;
-	u32 eic_cfg_bits;
-	u32 eic_ready_status;
-
-	u32 chipver3;
-	u32 chipver2;
-	u32 chipver1;
-	u32 chipver0;
-
-	u32 uart1_intstat;
-	u32 uart1_inten;
-	u32 uart1_config1;
-	u32 uart1_config2;
-	u32 uart1_divisorhi;
-	u32 uart1_divisorlo;
-	u32 uart1_data;
-	u32 uart1_status;
-
-	u32 int_stat_3;
-	u32 int_stat_2;
-	u32 int_stat_1;
-	u32 int_stat_0;
-	u32 int_config;
-	u32 int_int_scan;
-	u32 ien_int_3;
-	u32 ien_int_2;
-	u32 ien_int_1;
-	u32 ien_int_0;
-	u32 int_level_3_3;
-	u32 int_level_3_2;
-	u32 int_level_3_1;
-	u32 int_level_3_0;
-	u32 int_level_2_3;
-	u32 int_level_2_2;
-	u32 int_level_2_1;
-	u32 int_level_2_0;
-	u32 int_level_1_3;
-	u32 int_level_1_2;
-	u32 int_level_1_1;
-	u32 int_level_1_0;
-	u32 int_level_0_3;
-	u32 int_level_0_2;
-	u32 int_level_0_1;
-	u32 int_level_0_0;
-	u32 int_docsis_en;
-
-	u32 mips_pll_setup;
-	u32 usb_fs;
-	u32 test_bus;
-	u32 crt_spare;
-	u32 usb2_ohci_int_mask;
-	u32 usb2_strap;
-	u32 ehci_hcapbase;
-	u32 ohci_hc_revision;
-	u32 bcm1_bs_lmi_steer;
-	u32 usb2_control;
-	u32 usb2_stbus_obc;
-	u32 usb2_stbus_mess_size;
-	u32 usb2_stbus_chunk_size;
-
-	u32 pcie_regs;
-	u32 tim_ch;
-	u32 tim_cl;
-	u32 gpio_dout;
-	u32 gpio_din;
-	u32 gpio_dir;
-	u32 watchdog;
-	u32 front_panel;
-
-	u32 register_maps;
+#include <asm/mach-powertv/asic_reg_map.h>
 };
+#undef REGISTER_MAP_ELEMENT
+
+/**
+ * register_map_offset_phys - add an offset to the physical address
+ * @map:	Pointer to the &struct register_map
+ * @offset:	Value to add
+ *
+ * Only adds the base to non-zero physical addresses
+ */
+static inline void register_map_offset_phys(struct register_map *map,
+	unsigned long offset)
+{
+#define REGISTER_MAP_ELEMENT(x)		do {				\
+		if (map->x.phys != 0)					\
+			map->x.phys += offset;				\
+	} while (false);
+
+#include <asm/mach-powertv/asic_reg_map.h>
+#undef REGISTER_MAP_ELEMENT
+}
+
+/**
+ * register_map_virtualize - Convert &register_map to virtual addresses
+ * @map:	Pointer to &register_map to virtualize
+ */
+static inline void register_map_virtualize(struct register_map *map)
+{
+#define REGISTER_MAP_ELEMENT(x)		do {				\
+		map->x.virt = (!map->x.phys) ? NULL :			\
+			UNCAC_ADDR(phys_to_virt(map->x.phys));		\
+	} while (false);
+
+#include <asm/mach-powertv/asic_reg_map.h>
+#undef REGISTER_MAP_ELEMENT
+}
 
-extern enum asic_type asic;
-extern const struct register_map *register_map;
-extern unsigned long asic_phy_base;	/* Physical address of ASIC */
-extern unsigned long asic_base;		/* Virtual address of ASIC */
+extern struct register_map _asic_register_map;
 
 /*
  * Macros to interface to registers through their ioremapped address
- * asic_reg_offset	Returns the offset of a given register from the start
- *			of the ASIC address space
  * asic_reg_phys_addr	Returns the physical address of the given register
  * asic_reg_addr	Returns the iomapped virtual address of the given
  *			register.
  */
-#define asic_reg_offset(x)	(register_map->x)
-#define asic_reg_phys_addr(x)	(asic_phy_base + asic_reg_offset(x))
-#define asic_reg_addr(x) \
-	((unsigned int *) (asic_base + asic_reg_offset(x)))
+#define asic_reg_addr(x)	(_asic_register_map.x.virt)
+#define asic_reg_phys_addr(x)	(virt_to_phys((void *) CAC_ADDR(	\
+					(unsigned long) asic_reg_addr(x))))
 
 /*
  * The asic_reg macro is gone. It should be replaced by either asic_read or
diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index a581d60cbcc21e395a1e7a9ba772c4b0be5dcb4b..f4ab3139d7371c3eaa92f267c6dd4c561d56360a 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -405,6 +405,16 @@
 #define ST0_CU3			0x80000000
 #define ST0_XX			0x80000000	/* MIPS IV naming */
 
+/*
+ * Bitfields and bit numbers in the coprocessor 0 IntCtl register. (MIPSR2)
+ *
+ * Refer to your MIPS R4xx0 manual, chapter 5 for explanation.
+ */
+#define INTCTLB_IPPCI		26
+#define INTCTLF_IPPCI		(_ULCAST_(7) << INTCTLB_IPPCI)
+#define INTCTLB_IPTI		29
+#define INTCTLF_IPTI		(_ULCAST_(7) << INTCTLB_IPTI)
+
 /*
  * Bitfields and bit numbers in the coprocessor 0 cause register.
  *
@@ -434,6 +444,8 @@
 #define  CAUSEF_IV		(_ULCAST_(1)   << 23)
 #define  CAUSEB_CE		28
 #define  CAUSEF_CE		(_ULCAST_(3)   << 28)
+#define  CAUSEB_TI		30
+#define  CAUSEF_TI		(_ULCAST_(1)   << 30)
 #define  CAUSEB_BD		31
 #define  CAUSEF_BD		(_ULCAST_(1)   << 31)
 
diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c
index b469ad05d520c3629348368a3037d07a0ef7a631..0b2450ceb13f1c6aaf0cef071216158b06c3de62 100644
--- a/arch/mips/kernel/cevt-r4k.c
+++ b/arch/mips/kernel/cevt-r4k.c
@@ -97,7 +97,7 @@ void mips_event_handler(struct clock_event_device *dev)
  */
 static int c0_compare_int_pending(void)
 {
-	return (read_c0_cause() >> cp0_compare_irq) & 0x100;
+	return (read_c0_cause() >> cp0_compare_irq_shift) & (1ul << CAUSEB_IP);
 }
 
 /*
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 308e434608647a2b1f1df35a8486bb9c3275f25e..338dfe8ed002be67a633e83ac30ee161ca4674dc 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1403,6 +1403,7 @@ extern void flush_tlb_handlers(void);
  * Timer interrupt
  */
 int cp0_compare_irq;
+int cp0_compare_irq_shift;
 
 /*
  * Performance counter IRQ or -1 if shared with timer
@@ -1493,8 +1494,9 @@ void __cpuinit per_cpu_trap_init(void)
 	 *  o read IntCtl.IPPCI to determine the performance counter interrupt
 	 */
 	if (cpu_has_mips_r2) {
-		cp0_compare_irq = (read_c0_intctl() >> 29) & 7;
-		cp0_perfcount_irq = (read_c0_intctl() >> 26) & 7;
+		cp0_compare_irq_shift = CAUSEB_TI - CAUSEB_IP;
+		cp0_compare_irq = (read_c0_intctl() >> INTCTLB_IPTI) & 7;
+		cp0_perfcount_irq = (read_c0_intctl() >> INTCTLB_IPPCI) & 7;
 		if (cp0_perfcount_irq == cp0_compare_irq)
 			cp0_perfcount_irq = -1;
 	} else {
diff --git a/arch/mips/powertv/asic/asic-calliope.c b/arch/mips/powertv/asic/asic-calliope.c
index 03d3884c627040589d2dd2ee64fb87536de86b0b..1ae6623444b2d5c6d3cf21f51c47b58f17f83224 100644
--- a/arch/mips/powertv/asic/asic-calliope.c
+++ b/arch/mips/powertv/asic/asic-calliope.c
@@ -23,76 +23,79 @@
  * Description:  Defines the platform resources for the SA settop.
  */
 
+#include <linux/init.h>
 #include <asm/mach-powertv/asic.h>
 
-const struct register_map calliope_register_map = {
-	.eic_slow0_strt_add = 0x800000,
-	.eic_cfg_bits = 0x800038,
-	.eic_ready_status = 0x80004c,
+#define CALLIOPE_ADDR(x)	(CALLIOPE_IO_BASE + (x))
 
-	.chipver3 = 0xA00800,
-	.chipver2 = 0xA00804,
-	.chipver1 = 0xA00808,
-	.chipver0 = 0xA0080c,
+const struct register_map calliope_register_map __initdata = {
+	.eic_slow0_strt_add = {.phys = CALLIOPE_ADDR(0x800000)},
+	.eic_cfg_bits = {.phys = CALLIOPE_ADDR(0x800038)},
+	.eic_ready_status = {.phys = CALLIOPE_ADDR(0x80004c)},
+
+	.chipver3 = {.phys = CALLIOPE_ADDR(0xA00800)},
+	.chipver2 = {.phys = CALLIOPE_ADDR(0xA00804)},
+	.chipver1 = {.phys = CALLIOPE_ADDR(0xA00808)},
+	.chipver0 = {.phys = CALLIOPE_ADDR(0xA0080c)},
 
 	/* The registers of IRBlaster */
-	.uart1_intstat = 0xA01800,
-	.uart1_inten = 0xA01804,
-	.uart1_config1 = 0xA01808,
-	.uart1_config2 = 0xA0180C,
-	.uart1_divisorhi = 0xA01810,
-	.uart1_divisorlo = 0xA01814,
-	.uart1_data = 0xA01818,
-	.uart1_status = 0xA0181C,
+	.uart1_intstat = {.phys = CALLIOPE_ADDR(0xA01800)},
+	.uart1_inten = {.phys = CALLIOPE_ADDR(0xA01804)},
+	.uart1_config1 = {.phys = CALLIOPE_ADDR(0xA01808)},
+	.uart1_config2 = {.phys = CALLIOPE_ADDR(0xA0180C)},
+	.uart1_divisorhi = {.phys = CALLIOPE_ADDR(0xA01810)},
+	.uart1_divisorlo = {.phys = CALLIOPE_ADDR(0xA01814)},
+	.uart1_data = {.phys = CALLIOPE_ADDR(0xA01818)},
+	.uart1_status = {.phys = CALLIOPE_ADDR(0xA0181C)},
 
-	.int_stat_3 = 0xA02800,
-	.int_stat_2 = 0xA02804,
-	.int_stat_1 = 0xA02808,
-	.int_stat_0 = 0xA0280c,
-	.int_config = 0xA02810,
-	.int_int_scan = 0xA02818,
-	.ien_int_3 = 0xA02830,
-	.ien_int_2 = 0xA02834,
-	.ien_int_1 = 0xA02838,
-	.ien_int_0 = 0xA0283c,
-	.int_level_3_3 = 0xA02880,
-	.int_level_3_2 = 0xA02884,
-	.int_level_3_1 = 0xA02888,
-	.int_level_3_0 = 0xA0288c,
-	.int_level_2_3 = 0xA02890,
-	.int_level_2_2 = 0xA02894,
-	.int_level_2_1 = 0xA02898,
-	.int_level_2_0 = 0xA0289c,
-	.int_level_1_3 = 0xA028a0,
-	.int_level_1_2 = 0xA028a4,
-	.int_level_1_1 = 0xA028a8,
-	.int_level_1_0 = 0xA028ac,
-	.int_level_0_3 = 0xA028b0,
-	.int_level_0_2 = 0xA028b4,
-	.int_level_0_1 = 0xA028b8,
-	.int_level_0_0 = 0xA028bc,
-	.int_docsis_en = 0xA028F4,
+	.int_stat_3 = {.phys = CALLIOPE_ADDR(0xA02800)},
+	.int_stat_2 = {.phys = CALLIOPE_ADDR(0xA02804)},
+	.int_stat_1 = {.phys = CALLIOPE_ADDR(0xA02808)},
+	.int_stat_0 = {.phys = CALLIOPE_ADDR(0xA0280c)},
+	.int_config = {.phys = CALLIOPE_ADDR(0xA02810)},
+	.int_int_scan = {.phys = CALLIOPE_ADDR(0xA02818)},
+	.ien_int_3 = {.phys = CALLIOPE_ADDR(0xA02830)},
+	.ien_int_2 = {.phys = CALLIOPE_ADDR(0xA02834)},
+	.ien_int_1 = {.phys = CALLIOPE_ADDR(0xA02838)},
+	.ien_int_0 = {.phys = CALLIOPE_ADDR(0xA0283c)},
+	.int_level_3_3 = {.phys = CALLIOPE_ADDR(0xA02880)},
+	.int_level_3_2 = {.phys = CALLIOPE_ADDR(0xA02884)},
+	.int_level_3_1 = {.phys = CALLIOPE_ADDR(0xA02888)},
+	.int_level_3_0 = {.phys = CALLIOPE_ADDR(0xA0288c)},
+	.int_level_2_3 = {.phys = CALLIOPE_ADDR(0xA02890)},
+	.int_level_2_2 = {.phys = CALLIOPE_ADDR(0xA02894)},
+	.int_level_2_1 = {.phys = CALLIOPE_ADDR(0xA02898)},
+	.int_level_2_0 = {.phys = CALLIOPE_ADDR(0xA0289c)},
+	.int_level_1_3 = {.phys = CALLIOPE_ADDR(0xA028a0)},
+	.int_level_1_2 = {.phys = CALLIOPE_ADDR(0xA028a4)},
+	.int_level_1_1 = {.phys = CALLIOPE_ADDR(0xA028a8)},
+	.int_level_1_0 = {.phys = CALLIOPE_ADDR(0xA028ac)},
+	.int_level_0_3 = {.phys = CALLIOPE_ADDR(0xA028b0)},
+	.int_level_0_2 = {.phys = CALLIOPE_ADDR(0xA028b4)},
+	.int_level_0_1 = {.phys = CALLIOPE_ADDR(0xA028b8)},
+	.int_level_0_0 = {.phys = CALLIOPE_ADDR(0xA028bc)},
+	.int_docsis_en = {.phys = CALLIOPE_ADDR(0xA028F4)},
 
-	.mips_pll_setup = 0x980000,
-	.usb_fs = 0x980030,     	/* -default 72800028- */
-	.test_bus = 0x9800CC,
-	.crt_spare = 0x9800d4,
-	.usb2_ohci_int_mask = 0x9A000c,
-	.usb2_strap = 0x9A0014,
-	.ehci_hcapbase = 0x9BFE00,
-	.ohci_hc_revision = 0x9BFC00,
-	.bcm1_bs_lmi_steer = 0x9E0004,
-	.usb2_control = 0x9E0054,
-	.usb2_stbus_obc = 0x9BFF00,
-	.usb2_stbus_mess_size = 0x9BFF04,
-	.usb2_stbus_chunk_size = 0x9BFF08,
+	.mips_pll_setup = {.phys = CALLIOPE_ADDR(0x980000)},
+	.usb_fs = {.phys = CALLIOPE_ADDR(0x980030)},
+	.test_bus = {.phys = CALLIOPE_ADDR(0x9800CC)},
+	.crt_spare = {.phys = CALLIOPE_ADDR(0x9800d4)},
+	.usb2_ohci_int_mask = {.phys = CALLIOPE_ADDR(0x9A000c)},
+	.usb2_strap = {.phys = CALLIOPE_ADDR(0x9A0014)},
+	.ehci_hcapbase = {.phys = CALLIOPE_ADDR(0x9BFE00)},
+	.ohci_hc_revision = {.phys = CALLIOPE_ADDR(0x9BFC00)},
+	.bcm1_bs_lmi_steer = {.phys = CALLIOPE_ADDR(0x9E0004)},
+	.usb2_control = {.phys = CALLIOPE_ADDR(0x9E0054)},
+	.usb2_stbus_obc = {.phys = CALLIOPE_ADDR(0x9BFF00)},
+	.usb2_stbus_mess_size = {.phys = CALLIOPE_ADDR(0x9BFF04)},
+	.usb2_stbus_chunk_size = {.phys = CALLIOPE_ADDR(0x9BFF08)},
 
-	.pcie_regs = 0x000000,      	/* -doesn't exist- */
-	.tim_ch = 0xA02C10,
-	.tim_cl = 0xA02C14,
-	.gpio_dout = 0xA02c20,
-	.gpio_din = 0xA02c24,
-	.gpio_dir = 0xA02c2C,
-	.watchdog = 0xA02c30,
-	.front_panel = 0x000000,    	/* -not used- */
+	.pcie_regs = {.phys = 0x000000},      	/* -doesn't exist- */
+	.tim_ch = {.phys = CALLIOPE_ADDR(0xA02C10)},
+	.tim_cl = {.phys = CALLIOPE_ADDR(0xA02C14)},
+	.gpio_dout = {.phys = CALLIOPE_ADDR(0xA02c20)},
+	.gpio_din = {.phys = CALLIOPE_ADDR(0xA02c24)},
+	.gpio_dir = {.phys = CALLIOPE_ADDR(0xA02c2C)},
+	.watchdog = {.phys = CALLIOPE_ADDR(0xA02c30)},
+	.front_panel = {.phys = 0x000000},    	/* -not used- */
 };
diff --git a/arch/mips/powertv/asic/asic-cronus.c b/arch/mips/powertv/asic/asic-cronus.c
index 5f4589c9f83d27ec71455aeef1d19fd3f8e0bc6d..5bb64bfb508b1e83e5f81dab74351d76d9413639 100644
--- a/arch/mips/powertv/asic/asic-cronus.c
+++ b/arch/mips/powertv/asic/asic-cronus.c
@@ -23,76 +23,79 @@
  * Description:  Defines the platform resources for the SA settop.
  */
 
+#include <linux/init.h>
 #include <asm/mach-powertv/asic.h>
 
-const struct register_map cronus_register_map = {
-	.eic_slow0_strt_add = 0x000000,
-	.eic_cfg_bits = 0x000038,
-	.eic_ready_status = 0x00004C,
+#define CRONUS_ADDR(x)	(CRONUS_IO_BASE + (x))
 
-	.chipver3 = 0x2A0800,
-	.chipver2 = 0x2A0804,
-	.chipver1 = 0x2A0808,
-	.chipver0 = 0x2A080C,
+const struct register_map cronus_register_map __initdata = {
+	.eic_slow0_strt_add = {.phys = CRONUS_ADDR(0x000000)},
+	.eic_cfg_bits = {.phys = CRONUS_ADDR(0x000038)},
+	.eic_ready_status = {.phys = CRONUS_ADDR(0x00004C)},
+
+	.chipver3 = {.phys = CRONUS_ADDR(0x2A0800)},
+	.chipver2 = {.phys = CRONUS_ADDR(0x2A0804)},
+	.chipver1 = {.phys = CRONUS_ADDR(0x2A0808)},
+	.chipver0 = {.phys = CRONUS_ADDR(0x2A080C)},
 
 	/* The registers of IRBlaster */
-	.uart1_intstat = 0x2A1800,
-	.uart1_inten = 0x2A1804,
-	.uart1_config1 = 0x2A1808,
-	.uart1_config2 = 0x2A180C,
-	.uart1_divisorhi = 0x2A1810,
-	.uart1_divisorlo = 0x2A1814,
-	.uart1_data = 0x2A1818,
-	.uart1_status = 0x2A181C,
+	.uart1_intstat = {.phys = CRONUS_ADDR(0x2A1800)},
+	.uart1_inten = {.phys = CRONUS_ADDR(0x2A1804)},
+	.uart1_config1 = {.phys = CRONUS_ADDR(0x2A1808)},
+	.uart1_config2 = {.phys = CRONUS_ADDR(0x2A180C)},
+	.uart1_divisorhi = {.phys = CRONUS_ADDR(0x2A1810)},
+	.uart1_divisorlo = {.phys = CRONUS_ADDR(0x2A1814)},
+	.uart1_data = {.phys = CRONUS_ADDR(0x2A1818)},
+	.uart1_status = {.phys = CRONUS_ADDR(0x2A181C)},
 
-	.int_stat_3 = 0x2A2800,
-	.int_stat_2 = 0x2A2804,
-	.int_stat_1 = 0x2A2808,
-	.int_stat_0 = 0x2A280C,
-	.int_config = 0x2A2810,
-	.int_int_scan = 0x2A2818,
-	.ien_int_3 = 0x2A2830,
-	.ien_int_2 = 0x2A2834,
-	.ien_int_1 = 0x2A2838,
-	.ien_int_0 = 0x2A283C,
-	.int_level_3_3 = 0x2A2880,
-	.int_level_3_2 = 0x2A2884,
-	.int_level_3_1 = 0x2A2888,
-	.int_level_3_0 = 0x2A288C,
-	.int_level_2_3 = 0x2A2890,
-	.int_level_2_2 = 0x2A2894,
-	.int_level_2_1 = 0x2A2898,
-	.int_level_2_0 = 0x2A289C,
-	.int_level_1_3 = 0x2A28A0,
-	.int_level_1_2 = 0x2A28A4,
-	.int_level_1_1 = 0x2A28A8,
-	.int_level_1_0 = 0x2A28AC,
-	.int_level_0_3 = 0x2A28B0,
-	.int_level_0_2 = 0x2A28B4,
-	.int_level_0_1 = 0x2A28B8,
-	.int_level_0_0 = 0x2A28BC,
-	.int_docsis_en = 0x2A28F4,
+	.int_stat_3 = {.phys = CRONUS_ADDR(0x2A2800)},
+	.int_stat_2 = {.phys = CRONUS_ADDR(0x2A2804)},
+	.int_stat_1 = {.phys = CRONUS_ADDR(0x2A2808)},
+	.int_stat_0 = {.phys = CRONUS_ADDR(0x2A280C)},
+	.int_config = {.phys = CRONUS_ADDR(0x2A2810)},
+	.int_int_scan = {.phys = CRONUS_ADDR(0x2A2818)},
+	.ien_int_3 = {.phys = CRONUS_ADDR(0x2A2830)},
+	.ien_int_2 = {.phys = CRONUS_ADDR(0x2A2834)},
+	.ien_int_1 = {.phys = CRONUS_ADDR(0x2A2838)},
+	.ien_int_0 = {.phys = CRONUS_ADDR(0x2A283C)},
+	.int_level_3_3 = {.phys = CRONUS_ADDR(0x2A2880)},
+	.int_level_3_2 = {.phys = CRONUS_ADDR(0x2A2884)},
+	.int_level_3_1 = {.phys = CRONUS_ADDR(0x2A2888)},
+	.int_level_3_0 = {.phys = CRONUS_ADDR(0x2A288C)},
+	.int_level_2_3 = {.phys = CRONUS_ADDR(0x2A2890)},
+	.int_level_2_2 = {.phys = CRONUS_ADDR(0x2A2894)},
+	.int_level_2_1 = {.phys = CRONUS_ADDR(0x2A2898)},
+	.int_level_2_0 = {.phys = CRONUS_ADDR(0x2A289C)},
+	.int_level_1_3 = {.phys = CRONUS_ADDR(0x2A28A0)},
+	.int_level_1_2 = {.phys = CRONUS_ADDR(0x2A28A4)},
+	.int_level_1_1 = {.phys = CRONUS_ADDR(0x2A28A8)},
+	.int_level_1_0 = {.phys = CRONUS_ADDR(0x2A28AC)},
+	.int_level_0_3 = {.phys = CRONUS_ADDR(0x2A28B0)},
+	.int_level_0_2 = {.phys = CRONUS_ADDR(0x2A28B4)},
+	.int_level_0_1 = {.phys = CRONUS_ADDR(0x2A28B8)},
+	.int_level_0_0 = {.phys = CRONUS_ADDR(0x2A28BC)},
+	.int_docsis_en = {.phys = CRONUS_ADDR(0x2A28F4)},
 
-	.mips_pll_setup = 0x1C0000,
-	.usb_fs = 0x1C0018,
-	.test_bus = 0x1C00CC,
-	.crt_spare = 0x1c00d4,
-	.usb2_ohci_int_mask = 0x20000C,
-	.usb2_strap = 0x200014,
-	.ehci_hcapbase = 0x21FE00,
-	.ohci_hc_revision = 0x1E0000,
-	.bcm1_bs_lmi_steer = 0x2E0008,
-	.usb2_control = 0x2E004C,
-	.usb2_stbus_obc = 0x21FF00,
-	.usb2_stbus_mess_size = 0x21FF04,
-	.usb2_stbus_chunk_size = 0x21FF08,
+	.mips_pll_setup = {.phys = CRONUS_ADDR(0x1C0000)},
+	.usb_fs = {.phys = CRONUS_ADDR(0x1C0018)},
+	.test_bus = {.phys = CRONUS_ADDR(0x1C00CC)},
+	.crt_spare = {.phys = CRONUS_ADDR(0x1c00d4)},
+	.usb2_ohci_int_mask = {.phys = CRONUS_ADDR(0x20000C)},
+	.usb2_strap = {.phys = CRONUS_ADDR(0x200014)},
+	.ehci_hcapbase = {.phys = CRONUS_ADDR(0x21FE00)},
+	.ohci_hc_revision = {.phys = CRONUS_ADDR(0x1E0000)},
+	.bcm1_bs_lmi_steer = {.phys = CRONUS_ADDR(0x2E0008)},
+	.usb2_control = {.phys = CRONUS_ADDR(0x2E004C)},
+	.usb2_stbus_obc = {.phys = CRONUS_ADDR(0x21FF00)},
+	.usb2_stbus_mess_size = {.phys = CRONUS_ADDR(0x21FF04)},
+	.usb2_stbus_chunk_size = {.phys = CRONUS_ADDR(0x21FF08)},
 
-	.pcie_regs = 0x220000,
-	.tim_ch = 0x2A2C10,
-	.tim_cl = 0x2A2C14,
-	.gpio_dout = 0x2A2C20,
-	.gpio_din = 0x2A2C24,
-	.gpio_dir = 0x2A2C2C,
-	.watchdog = 0x2A2C30,
-	.front_panel = 0x2A3800,
+	.pcie_regs = {.phys = CRONUS_ADDR(0x220000)},
+	.tim_ch = {.phys = CRONUS_ADDR(0x2A2C10)},
+	.tim_cl = {.phys = CRONUS_ADDR(0x2A2C14)},
+	.gpio_dout = {.phys = CRONUS_ADDR(0x2A2C20)},
+	.gpio_din = {.phys = CRONUS_ADDR(0x2A2C24)},
+	.gpio_dir = {.phys = CRONUS_ADDR(0x2A2C2C)},
+	.watchdog = {.phys = CRONUS_ADDR(0x2A2C30)},
+	.front_panel = {.phys = CRONUS_ADDR(0x2A3800)},
 };
diff --git a/arch/mips/powertv/asic/asic-zeus.c b/arch/mips/powertv/asic/asic-zeus.c
index 1469daab920e61cc8923c0fe9a2f1e95a0009641..095cbe10ebb90e92833ea4517df7bec9c81f3f21 100644
--- a/arch/mips/powertv/asic/asic-zeus.c
+++ b/arch/mips/powertv/asic/asic-zeus.c
@@ -23,76 +23,79 @@
  * Description:  Defines the platform resources for the SA settop.
  */
 
+#include <linux/init.h>
 #include <asm/mach-powertv/asic.h>
 
-const struct register_map zeus_register_map = {
-	.eic_slow0_strt_add = 0x000000,
-	.eic_cfg_bits = 0x000038,
-	.eic_ready_status = 0x00004c,
+#define ZEUS_ADDR(x)	(ZEUS_IO_BASE + (x))
 
-	.chipver3 = 0x280800,
-	.chipver2 = 0x280804,
-	.chipver1 = 0x280808,
-	.chipver0 = 0x28080c,
+const struct register_map zeus_register_map __initdata = {
+	.eic_slow0_strt_add = {.phys = ZEUS_ADDR(0x000000)},
+	.eic_cfg_bits = {.phys = ZEUS_ADDR(0x000038)},
+	.eic_ready_status = {.phys = ZEUS_ADDR(0x00004c)},
+
+	.chipver3 = {.phys = ZEUS_ADDR(0x280800)},
+	.chipver2 = {.phys = ZEUS_ADDR(0x280804)},
+	.chipver1 = {.phys = ZEUS_ADDR(0x280808)},
+	.chipver0 = {.phys = ZEUS_ADDR(0x28080c)},
 
 	/* The registers of IRBlaster */
-	.uart1_intstat = 0x281800,
-	.uart1_inten = 0x281804,
-	.uart1_config1 = 0x281808,
-	.uart1_config2 = 0x28180C,
-	.uart1_divisorhi = 0x281810,
-	.uart1_divisorlo = 0x281814,
-	.uart1_data = 0x281818,
-	.uart1_status = 0x28181C,
+	.uart1_intstat = {.phys = ZEUS_ADDR(0x281800)},
+	.uart1_inten = {.phys = ZEUS_ADDR(0x281804)},
+	.uart1_config1 = {.phys = ZEUS_ADDR(0x281808)},
+	.uart1_config2 = {.phys = ZEUS_ADDR(0x28180C)},
+	.uart1_divisorhi = {.phys = ZEUS_ADDR(0x281810)},
+	.uart1_divisorlo = {.phys = ZEUS_ADDR(0x281814)},
+	.uart1_data = {.phys = ZEUS_ADDR(0x281818)},
+	.uart1_status = {.phys = ZEUS_ADDR(0x28181C)},
 
-	.int_stat_3 = 0x282800,
-	.int_stat_2 = 0x282804,
-	.int_stat_1 = 0x282808,
-	.int_stat_0 = 0x28280c,
-	.int_config = 0x282810,
-	.int_int_scan = 0x282818,
-	.ien_int_3 = 0x282830,
-	.ien_int_2 = 0x282834,
-	.ien_int_1 = 0x282838,
-	.ien_int_0 = 0x28283c,
-	.int_level_3_3 = 0x282880,
-	.int_level_3_2 = 0x282884,
-	.int_level_3_1 = 0x282888,
-	.int_level_3_0 = 0x28288c,
-	.int_level_2_3 = 0x282890,
-	.int_level_2_2 = 0x282894,
-	.int_level_2_1 = 0x282898,
-	.int_level_2_0 = 0x28289c,
-	.int_level_1_3 = 0x2828a0,
-	.int_level_1_2 = 0x2828a4,
-	.int_level_1_1 = 0x2828a8,
-	.int_level_1_0 = 0x2828ac,
-	.int_level_0_3 = 0x2828b0,
-	.int_level_0_2 = 0x2828b4,
-	.int_level_0_1 = 0x2828b8,
-	.int_level_0_0 = 0x2828bc,
-	.int_docsis_en = 0x2828F4,
+	.int_stat_3 = {.phys = ZEUS_ADDR(0x282800)},
+	.int_stat_2 = {.phys = ZEUS_ADDR(0x282804)},
+	.int_stat_1 = {.phys = ZEUS_ADDR(0x282808)},
+	.int_stat_0 = {.phys = ZEUS_ADDR(0x28280c)},
+	.int_config = {.phys = ZEUS_ADDR(0x282810)},
+	.int_int_scan = {.phys = ZEUS_ADDR(0x282818)},
+	.ien_int_3 = {.phys = ZEUS_ADDR(0x282830)},
+	.ien_int_2 = {.phys = ZEUS_ADDR(0x282834)},
+	.ien_int_1 = {.phys = ZEUS_ADDR(0x282838)},
+	.ien_int_0 = {.phys = ZEUS_ADDR(0x28283c)},
+	.int_level_3_3 = {.phys = ZEUS_ADDR(0x282880)},
+	.int_level_3_2 = {.phys = ZEUS_ADDR(0x282884)},
+	.int_level_3_1 = {.phys = ZEUS_ADDR(0x282888)},
+	.int_level_3_0 = {.phys = ZEUS_ADDR(0x28288c)},
+	.int_level_2_3 = {.phys = ZEUS_ADDR(0x282890)},
+	.int_level_2_2 = {.phys = ZEUS_ADDR(0x282894)},
+	.int_level_2_1 = {.phys = ZEUS_ADDR(0x282898)},
+	.int_level_2_0 = {.phys = ZEUS_ADDR(0x28289c)},
+	.int_level_1_3 = {.phys = ZEUS_ADDR(0x2828a0)},
+	.int_level_1_2 = {.phys = ZEUS_ADDR(0x2828a4)},
+	.int_level_1_1 = {.phys = ZEUS_ADDR(0x2828a8)},
+	.int_level_1_0 = {.phys = ZEUS_ADDR(0x2828ac)},
+	.int_level_0_3 = {.phys = ZEUS_ADDR(0x2828b0)},
+	.int_level_0_2 = {.phys = ZEUS_ADDR(0x2828b4)},
+	.int_level_0_1 = {.phys = ZEUS_ADDR(0x2828b8)},
+	.int_level_0_0 = {.phys = ZEUS_ADDR(0x2828bc)},
+	.int_docsis_en = {.phys = ZEUS_ADDR(0x2828F4)},
 
-	.mips_pll_setup = 0x1a0000,
-	.usb_fs = 0x1a0018,
-	.test_bus = 0x1a0238,
-	.crt_spare = 0x1a0090,
-	.usb2_ohci_int_mask = 0x1e000c,
-	.usb2_strap = 0x1e0014,
-	.ehci_hcapbase = 0x1FFE00,
-	.ohci_hc_revision = 0x1FFC00,
-	.bcm1_bs_lmi_steer = 0x2C0008,
-	.usb2_control = 0x2c01a0,
-	.usb2_stbus_obc = 0x1FFF00,
-	.usb2_stbus_mess_size = 0x1FFF04,
-	.usb2_stbus_chunk_size = 0x1FFF08,
+	.mips_pll_setup = {.phys = ZEUS_ADDR(0x1a0000)},
+	.usb_fs = {.phys = ZEUS_ADDR(0x1a0018)},
+	.test_bus = {.phys = ZEUS_ADDR(0x1a0238)},
+	.crt_spare = {.phys = ZEUS_ADDR(0x1a0090)},
+	.usb2_ohci_int_mask = {.phys = ZEUS_ADDR(0x1e000c)},
+	.usb2_strap = {.phys = ZEUS_ADDR(0x1e0014)},
+	.ehci_hcapbase = {.phys = ZEUS_ADDR(0x1FFE00)},
+	.ohci_hc_revision = {.phys = ZEUS_ADDR(0x1FFC00)},
+	.bcm1_bs_lmi_steer = {.phys = ZEUS_ADDR(0x2C0008)},
+	.usb2_control = {.phys = ZEUS_ADDR(0x2c01a0)},
+	.usb2_stbus_obc = {.phys = ZEUS_ADDR(0x1FFF00)},
+	.usb2_stbus_mess_size = {.phys = ZEUS_ADDR(0x1FFF04)},
+	.usb2_stbus_chunk_size = {.phys = ZEUS_ADDR(0x1FFF08)},
 
-	.pcie_regs = 0x200000,
-	.tim_ch = 0x282C10,
-	.tim_cl = 0x282C14,
-	.gpio_dout = 0x282c20,
-	.gpio_din = 0x282c24,
-	.gpio_dir = 0x282c2C,
-	.watchdog = 0x282c30,
-	.front_panel = 0x283800,
+	.pcie_regs = {.phys = ZEUS_ADDR(0x200000)},
+	.tim_ch = {.phys = ZEUS_ADDR(0x282C10)},
+	.tim_cl = {.phys = ZEUS_ADDR(0x282C14)},
+	.gpio_dout = {.phys = ZEUS_ADDR(0x282c20)},
+	.gpio_din = {.phys = ZEUS_ADDR(0x282c24)},
+	.gpio_dir = {.phys = ZEUS_ADDR(0x282c2C)},
+	.watchdog = {.phys = ZEUS_ADDR(0x282c30)},
+	.front_panel = {.phys = ZEUS_ADDR(0x283800)},
 };
diff --git a/arch/mips/powertv/asic/asic_devices.c b/arch/mips/powertv/asic/asic_devices.c
index bae82880b6b5ab3a09373539a9c1579b1d5d0566..6a882194e063251fe80a3da2e8969e3d60473a0a 100644
--- a/arch/mips/powertv/asic/asic_devices.c
+++ b/arch/mips/powertv/asic/asic_devices.c
@@ -67,8 +67,8 @@ enum asic_type asic;
 
 unsigned int platform_features;
 unsigned int platform_family;
-const struct register_map  *register_map;
-EXPORT_SYMBOL(register_map);			/* Exported for testing */
+struct register_map _asic_register_map;
+EXPORT_SYMBOL(_asic_register_map);		/* Exported for testing */
 unsigned long asic_phy_base;
 unsigned long asic_base;
 EXPORT_SYMBOL(asic_base);			/* Exported for testing */
@@ -418,6 +418,15 @@ void platform_unconfigure_usb_ohci()
 {
 }
 
+static void __init set_register_map(unsigned long phys_base,
+	const struct register_map *map)
+{
+	asic_phy_base = phys_base;
+	_asic_register_map = *map;
+	register_map_virtualize(&_asic_register_map);
+	asic_base = (unsigned long)ioremap_nocache(phys_base, ASIC_IO_SIZE);
+}
+
 /**
  * configure_platform - configuration based on platform type.
  */
@@ -431,10 +440,7 @@ void __init configure_platform(void)
 	case FAMILY_1500VZF:
 		platform_features = FFS_CAPABLE;
 		asic = ASIC_CALLIOPE;
-		asic_phy_base = CALLIOPE_IO_BASE;
-		register_map = &calliope_register_map;
-		asic_base = (unsigned long)ioremap_nocache(asic_phy_base,
-			ASIC_IO_SIZE);
+		set_register_map(CALLIOPE_IO_BASE, &calliope_register_map);
 
 		if (platform_family == FAMILY_1500VZE) {
 			gp_resources = non_dvr_vze_calliope_resources;
@@ -455,10 +461,7 @@ void __init configure_platform(void)
 		platform_features = FFS_CAPABLE | PCIE_CAPABLE |
 			DISPLAY_CAPABLE;
 		asic = ASIC_ZEUS;
-		asic_phy_base = ZEUS_IO_BASE;
-		register_map = &zeus_register_map;
-		asic_base = (unsigned long)ioremap_nocache(asic_phy_base,
-			ASIC_IO_SIZE);
+		set_register_map(ZEUS_IO_BASE, &zeus_register_map);
 		gp_resources = non_dvr_zeus_resources;
 
 		pr_info("Platform: 4500 - ZEUS, NON_DVR_CAPABLE\n");
@@ -471,11 +474,6 @@ void __init configure_platform(void)
 		/* The settop has PCIE but it isn't used, so don't advertise
 		 * it*/
 		platform_features = FFS_CAPABLE | DISPLAY_CAPABLE;
-		asic_phy_base = CRONUS_IO_BASE;   /* same as Cronus */
-		register_map = &cronus_register_map;   /* same as Cronus */
-		asic_base = (unsigned long)ioremap_nocache(asic_phy_base,
-			ASIC_IO_SIZE);
-		gp_resources = non_dvr_cronuslite_resources;
 
 		/* ASIC version will determine if this is a real CronusLite or
 		 * Castrati(Cronus) */
@@ -489,6 +487,9 @@ void __init configure_platform(void)
 		else
 			asic = ASIC_CRONUSLITE;
 
+		/* Cronus and Cronus Lite have the same register map */
+		set_register_map(CRONUS_IO_BASE, &cronus_register_map);
+		gp_resources = non_dvr_cronuslite_resources;
 		pr_info("Platform: 4600 - %s, NON_DVR_CAPABLE, "
 			"chipversion=0x%08X\n",
 			(asic == ASIC_CRONUS) ? "CRONUS" : "CRONUS LITE",
@@ -498,10 +499,7 @@ void __init configure_platform(void)
 	case FAMILY_4600VZA:
 		platform_features = FFS_CAPABLE | DISPLAY_CAPABLE;
 		asic = ASIC_CRONUS;
-		asic_phy_base = CRONUS_IO_BASE;
-		register_map = &cronus_register_map;
-		asic_base = (unsigned long)ioremap_nocache(asic_phy_base,
-			ASIC_IO_SIZE);
+		set_register_map(CRONUS_IO_BASE, &cronus_register_map);
 		gp_resources = non_dvr_cronus_resources;
 
 		pr_info("Platform: Vz Class A - CRONUS, NON_DVR_CAPABLE\n");
@@ -512,10 +510,7 @@ void __init configure_platform(void)
 		platform_features = DVR_CAPABLE | PCIE_CAPABLE |
 			DISPLAY_CAPABLE;
 		asic = ASIC_ZEUS;
-		asic_phy_base = ZEUS_IO_BASE;
-		register_map = &zeus_register_map;
-		asic_base = (unsigned long)ioremap_nocache(asic_phy_base,
-			ASIC_IO_SIZE);
+		set_register_map(ZEUS_IO_BASE, &zeus_register_map);
 		gp_resources = dvr_zeus_resources;
 
 		pr_info("Platform: 8500/RNG200 - ZEUS, DVR_CAPABLE\n");
@@ -526,10 +521,7 @@ void __init configure_platform(void)
 		platform_features = DVR_CAPABLE | PCIE_CAPABLE |
 			DISPLAY_CAPABLE;
 		asic = ASIC_CRONUS;
-		asic_phy_base = CRONUS_IO_BASE;
-		register_map = &cronus_register_map;
-		asic_base = (unsigned long)ioremap_nocache(asic_phy_base,
-			ASIC_IO_SIZE);
+		set_register_map(CRONUS_IO_BASE, &cronus_register_map);
 		gp_resources = dvr_cronus_resources;
 
 		pr_info("Platform: 8600/Vz Class B - CRONUS, "