diff --git a/include/asm-mips/bootinfo.h b/include/asm-mips/bootinfo.h
index 8e9bb16f..e031bdf 100644
--- a/include/asm-mips/bootinfo.h
+++ b/include/asm-mips/bootinfo.h
@@ -96,6 +96,7 @@
 
 #define CL_SIZE			COMMAND_LINE_SIZE
 
+extern char *system_type;
 const char *get_system_type(void);
 
 extern unsigned long mips_machtype;
diff --git a/include/asm-mips/mipsprom.h b/include/asm-mips/mipsprom.h
index ce7cff7..146d41b 100644
--- a/include/asm-mips/mipsprom.h
+++ b/include/asm-mips/mipsprom.h
@@ -71,4 +71,6 @@
 #define PROM_NV_GET		53	/* XXX */
 #define PROM_NV_SET		54	/* XXX */
 
+extern char *prom_getenv(char *);
+
 #endif /* __ASM_MIPS_PROM_H */
diff --git a/include/asm-mips/sni.h b/include/asm-mips/sni.h
index af08145..e716447 100644
--- a/include/asm-mips/sni.h
+++ b/include/asm-mips/sni.h
@@ -35,23 +35,23 @@
 #define SNI_CPU_M8050           0x0b
 #define SNI_CPU_M8053           0x0d
 
-#define SNI_PORT_BASE		0xb4000000
+#define SNI_PORT_BASE		CKSEG1ADDR(0xb4000000)
 
 #ifndef __MIPSEL__
 /*
  * ASIC PCI registers for big endian configuration.
  */
-#define PCIMT_UCONF		0xbfff0004
-#define PCIMT_IOADTIMEOUT2	0xbfff000c
-#define PCIMT_IOMEMCONF		0xbfff0014
-#define PCIMT_IOMMU		0xbfff001c
-#define PCIMT_IOADTIMEOUT1	0xbfff0024
-#define PCIMT_DMAACCESS		0xbfff002c
-#define PCIMT_DMAHIT		0xbfff0034
-#define PCIMT_ERRSTATUS		0xbfff003c
-#define PCIMT_ERRADDR		0xbfff0044
-#define PCIMT_SYNDROME		0xbfff004c
-#define PCIMT_ITPEND		0xbfff0054
+#define PCIMT_UCONF		CKSEG1ADDR(0xbfff0004)
+#define PCIMT_IOADTIMEOUT2	CKSEG1ADDR(0xbfff000c)
+#define PCIMT_IOMEMCONF		CKSEG1ADDR(0xbfff0014)
+#define PCIMT_IOMMU		CKSEG1ADDR(0xbfff001c)
+#define PCIMT_IOADTIMEOUT1	CKSEG1ADDR(0xbfff0024)
+#define PCIMT_DMAACCESS		CKSEG1ADDR(0xbfff002c)
+#define PCIMT_DMAHIT		CKSEG1ADDR(0xbfff0034)
+#define PCIMT_ERRSTATUS		CKSEG1ADDR(0xbfff003c)
+#define PCIMT_ERRADDR		CKSEG1ADDR(0xbfff0044)
+#define PCIMT_SYNDROME		CKSEG1ADDR(0xbfff004c)
+#define PCIMT_ITPEND		CKSEG1ADDR(0xbfff0054)
 #define  IT_INT2		0x01
 #define  IT_INTD		0x02
 #define  IT_INTC		0x04
@@ -60,32 +60,32 @@
 #define  IT_EISA		0x20
 #define  IT_SCSI		0x40
 #define  IT_ETH			0x80
-#define PCIMT_IRQSEL		0xbfff005c
-#define PCIMT_TESTMEM		0xbfff0064
-#define PCIMT_ECCREG		0xbfff006c
-#define PCIMT_CONFIG_ADDRESS	0xbfff0074
-#define PCIMT_ASIC_ID		0xbfff007c	/* read */
-#define PCIMT_SOFT_RESET	0xbfff007c	/* write */
-#define PCIMT_PIA_OE		0xbfff0084
-#define PCIMT_PIA_DATAOUT	0xbfff008c
-#define PCIMT_PIA_DATAIN	0xbfff0094
-#define PCIMT_CACHECONF		0xbfff009c
-#define PCIMT_INVSPACE		0xbfff00a4
+#define PCIMT_IRQSEL		CKSEG1ADDR(0xbfff005c)
+#define PCIMT_TESTMEM		CKSEG1ADDR(0xbfff0064)
+#define PCIMT_ECCREG		CKSEG1ADDR(0xbfff006c)
+#define PCIMT_CONFIG_ADDRESS	CKSEG1ADDR(0xbfff0074)
+#define PCIMT_ASIC_ID		CKSEG1ADDR(0xbfff007c)	/* read */
+#define PCIMT_SOFT_RESET	CKSEG1ADDR(0xbfff007c)	/* write */
+#define PCIMT_PIA_OE		CKSEG1ADDR(0xbfff0084)
+#define PCIMT_PIA_DATAOUT	CKSEG1ADDR(0xbfff008c)
+#define PCIMT_PIA_DATAIN	CKSEG1ADDR(0xbfff0094)
+#define PCIMT_CACHECONF		CKSEG1ADDR(0xbfff009c)
+#define PCIMT_INVSPACE		CKSEG1ADDR(0xbfff00a4)
 #else
 /*
  * ASIC PCI registers for little endian configuration.
  */
-#define PCIMT_UCONF		0xbfff0000
-#define PCIMT_IOADTIMEOUT2	0xbfff0008
-#define PCIMT_IOMEMCONF		0xbfff0010
-#define PCIMT_IOMMU		0xbfff0018
-#define PCIMT_IOADTIMEOUT1	0xbfff0020
-#define PCIMT_DMAACCESS		0xbfff0028
-#define PCIMT_DMAHIT		0xbfff0030
-#define PCIMT_ERRSTATUS		0xbfff0038
-#define PCIMT_ERRADDR		0xbfff0040
-#define PCIMT_SYNDROME		0xbfff0048
-#define PCIMT_ITPEND		0xbfff0050
+#define PCIMT_UCONF		CKSEG1ADDR(0xbfff0000)
+#define PCIMT_IOADTIMEOUT2	CKSEG1ADDR(0xbfff0008)
+#define PCIMT_IOMEMCONF		CKSEG1ADDR(0xbfff0010)
+#define PCIMT_IOMMU		CKSEG1ADDR(0xbfff0018)
+#define PCIMT_IOADTIMEOUT1	CKSEG1ADDR(0xbfff0020)
+#define PCIMT_DMAACCESS		CKSEG1ADDR(0xbfff0028)
+#define PCIMT_DMAHIT		CKSEG1ADDR(0xbfff0030)
+#define PCIMT_ERRSTATUS		CKSEG1ADDR(0xbfff0038)
+#define PCIMT_ERRADDR		CKSEG1ADDR(0xbfff0040)
+#define PCIMT_SYNDROME		CKSEG1ADDR(0xbfff0048)
+#define PCIMT_ITPEND		CKSEG1ADDR(0xbfff0050)
 #define  IT_INT2		0x01
 #define  IT_INTD		0x02
 #define  IT_INTC		0x04
@@ -94,20 +94,20 @@
 #define  IT_EISA		0x20
 #define  IT_SCSI		0x40
 #define  IT_ETH			0x80
-#define PCIMT_IRQSEL		0xbfff0058
-#define PCIMT_TESTMEM		0xbfff0060
-#define PCIMT_ECCREG		0xbfff0068
-#define PCIMT_CONFIG_ADDRESS	0xbfff0070
-#define PCIMT_ASIC_ID		0xbfff0078	/* read */
-#define PCIMT_SOFT_RESET	0xbfff0078	/* write */
-#define PCIMT_PIA_OE		0xbfff0080
-#define PCIMT_PIA_DATAOUT	0xbfff0088
-#define PCIMT_PIA_DATAIN	0xbfff0090
-#define PCIMT_CACHECONF		0xbfff0098
-#define PCIMT_INVSPACE		0xbfff00a0
+#define PCIMT_IRQSEL		CKSEG1ADDR(0xbfff0058)
+#define PCIMT_TESTMEM		CKSEG1ADDR(0xbfff0060)
+#define PCIMT_ECCREG		CKSEG1ADDR(0xbfff0068)
+#define PCIMT_CONFIG_ADDRESS	CKSEG1ADDR(0xbfff0070)
+#define PCIMT_ASIC_ID		CKSEG1ADDR(0xbfff0078)	/* read */
+#define PCIMT_SOFT_RESET	CKSEG1ADDR(0xbfff0078)	/* write */
+#define PCIMT_PIA_OE		CKSEG1ADDR(0xbfff0080)
+#define PCIMT_PIA_DATAOUT	CKSEG1ADDR(0xbfff0088)
+#define PCIMT_PIA_DATAIN	CKSEG1ADDR(0xbfff0090)
+#define PCIMT_CACHECONF		CKSEG1ADDR(0xbfff0098)
+#define PCIMT_INVSPACE		CKSEG1ADDR(0xbfff00a0)
 #endif
 
-#define PCIMT_PCI_CONF		0xbfff0100
+#define PCIMT_PCI_CONF		CKSEG1ADDR(0xbfff0100)
 
 /*
  * Data port for the PCI bus in IO space
@@ -117,34 +117,34 @@
 /*
  * Board specific registers
  */
-#define PCIMT_CSMSR		0xbfd00000
-#define PCIMT_CSSWITCH		0xbfd10000
-#define PCIMT_CSITPEND		0xbfd20000
-#define PCIMT_AUTO_PO_EN	0xbfd30000
-#define PCIMT_CLR_TEMP		0xbfd40000
-#define PCIMT_AUTO_PO_DIS	0xbfd50000
-#define PCIMT_EXMSR		0xbfd60000
-#define PCIMT_UNUSED1		0xbfd70000
-#define PCIMT_CSWCSM		0xbfd80000
-#define PCIMT_UNUSED2		0xbfd90000
-#define PCIMT_CSLED		0xbfda0000
-#define PCIMT_CSMAPISA		0xbfdb0000
-#define PCIMT_CSRSTBP		0xbfdc0000
-#define PCIMT_CLRPOFF		0xbfdd0000
-#define PCIMT_CSTIMER		0xbfde0000
-#define PCIMT_PWDN		0xbfdf0000
+#define PCIMT_CSMSR		CKSEG1ADDR(0xbfd00000)
+#define PCIMT_CSSWITCH		CKSEG1ADDR(0xbfd10000)
+#define PCIMT_CSITPEND		CKSEG1ADDR(0xbfd20000)
+#define PCIMT_AUTO_PO_EN	CKSEG1ADDR(0xbfd30000)
+#define PCIMT_CLR_TEMP		CKSEG1ADDR(0xbfd40000)
+#define PCIMT_AUTO_PO_DIS	CKSEG1ADDR(0xbfd50000)
+#define PCIMT_EXMSR		CKSEG1ADDR(0xbfd60000)
+#define PCIMT_UNUSED1		CKSEG1ADDR(0xbfd70000)
+#define PCIMT_CSWCSM		CKSEG1ADDR(0xbfd80000)
+#define PCIMT_UNUSED2		CKSEG1ADDR(0xbfd90000)
+#define PCIMT_CSLED		CKSEG1ADDR(0xbfda0000)
+#define PCIMT_CSMAPISA		CKSEG1ADDR(0xbfdb0000)
+#define PCIMT_CSRSTBP		CKSEG1ADDR(0xbfdc0000)
+#define PCIMT_CLRPOFF		CKSEG1ADDR(0xbfdd0000)
+#define PCIMT_CSTIMER		CKSEG1ADDR(0xbfde0000)
+#define PCIMT_PWDN		CKSEG1ADDR(0xbfdf0000)
 
 /*
  * A20R based boards
  */
-#define A20R_PT_CLOCK_BASE      0xbc040000
-#define A20R_PT_TIM0_ACK        0xbc050000
-#define A20R_PT_TIM1_ACK        0xbc060000
+#define A20R_PT_CLOCK_BASE      CKSEG1ADDR(0xbc040000)
+#define A20R_PT_TIM0_ACK        CKSEG1ADDR(0xbc050000)
+#define A20R_PT_TIM1_ACK        CKSEG1ADDR(0xbc060000)
 
 #define SNI_A20R_IRQ_BASE       MIPS_CPU_IRQ_BASE
 #define SNI_A20R_IRQ_TIMER      (SNI_A20R_IRQ_BASE+5)
 
-#define SNI_PCIT_INT_REG        0xbfff000c
+#define SNI_PCIT_INT_REG        CKSEG1ADDR(0xbfff000c)
 
 #define SNI_PCIT_INT_START      24
 #define SNI_PCIT_INT_END        30
@@ -186,10 +186,30 @@
 /*
  * Base address for the mapped 16mb EISA bus segment.
  */
-#define PCIMT_EISA_BASE		0xb0000000
+#define PCIMT_EISA_BASE		CKSEG1ADDR(0xb0000000)
 
 /* PCI EISA Interrupt acknowledge  */
-#define PCIMT_INT_ACKNOWLEDGE	0xba000000
+#define PCIMT_INT_ACKNOWLEDGE	CKSEG1ADDR(0xba000000)
+
+/*
+ *  SNI ID PROM
+ *
+ * SNI_IDPROM_MEMSIZE  Memsize in 16MB quantities
+ * SNI_IDPROM_BRDTYPE  Board Type
+ * SNI_IDPROM_CPUTYPE  CPU Type on RM400
+ */
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define __SNI_END 0
+#endif
+#ifdef CONFIG_CPU_LITTLE_ENDIAN
+#define __SNI_END 3
+#endif
+#define SNI_IDPROM_BASE        CKSEG1ADDR(0x1ff00000)
+#define SNI_IDPROM_MEMSIZE     (SNI_IDPROM_BASE + (0x28 ^ __SNI_END))
+#define SNI_IDPROM_BRDTYPE     (SNI_IDPROM_BASE + (0x29 ^ __SNI_END))
+#define SNI_IDPROM_CPUTYPE     (SNI_IDPROM_BASE + (0x30 ^ __SNI_END))
+
+#define SNI_IDPROM_SIZE	0x1000
 
 /* board specific init functions */
 extern void sni_a20r_init(void);
@@ -207,6 +227,9 @@
 /* timer inits */
 extern void sni_cpu_time_init(void);
 
+/* eisa init for RM200/400 */
+extern int sni_eisa_root_init(void);
+
 /* common irq stuff */
 extern void (*sni_hwint)(void);
 extern struct irqaction sni_isa_irq;