diff --git a/board/renesas/MigoR/lowlevel_init.S b/board/renesas/MigoR/lowlevel_init.S
index 13c83bf..1da603a 100644
--- a/board/renesas/MigoR/lowlevel_init.S
+++ b/board/renesas/MigoR/lowlevel_init.S
@@ -27,6 +27,7 @@
 #include <version.h>
 
 #include <asm/processor.h>
+#include <asm/macro.h>
 
 /*
  * Board specific low level init code, called _very_ early in the
@@ -42,139 +43,81 @@
 	.align	2
 
 lowlevel_init:
-	mov.l	CCR_A, r1	! Address of Cache Control Register
-	mov.l	CCR_D, r0	! Instruction Cache Invalidate
-	mov.l	r0, @r1
+	write32	CCR_A, CCR_D		! Address of Cache Control Register
+					! Instruction Cache Invalidate
 
-	mov.l	MMUCR_A, r1	! Address of MMU Control Register
-	mov.l	MMUCR_D, r0	! TI == TLB Invalidate bit
-	mov.l	r0, @r1
+	write32	MMUCR_A, MMUCR_D	! Address of MMU Control Register
+					! TI == TLB Invalidate bit
 
-	mov.l	MSTPCR0_A, r1	! Address of Power Control Register 0
-	mov.l	MSTPCR0_D, r0	!
-	mov.l	r0, @r1
+	write32	MSTPCR0_A, MSTPCR0_D	! Address of Power Control Register 0
 
-	mov.l	MSTPCR2_A, r1	! Address of Power Control Register 2
-	mov.l	MSTPCR2_D, r0	!
-	mov.l	r0, @r1
+	write32	MSTPCR2_A, MSTPCR2_D	! Address of Power Control Register 2
 
-	mov.l	PFC_PULCR_A, r1
-	mov.w	PFC_PULCR_D, r0
-	mov.w	r0,@r1
+	write16	PFC_PULCR_A, PFC_PULCR_D
 
-	mov.l	PFC_DRVCR_A, r1
-	mov.w	PFC_DRVCR_D, r0
-	mov.w	r0, @r1
+	write16	PFC_DRVCR_A, PFC_DRVCR_D
 
-	mov.l	SBSCR_A, r1	!
-	mov.w	SBSCR_D, r0	!
-	mov.w	r0, @r1
+	write16	SBSCR_A, SBSCR_D
 
-	mov.l	PSCR_A, r1	!
-	mov.w	PSCR_D, r0	!
-	mov.w	r0, @r1
+	write16	PSCR_A, PSCR_D
 
-	mov.l	RWTCSR_A, r1	! 0xA4520004 (Watchdog Control / Status Register)
-	mov.w	RWTCSR_D_1, r0	! 0xA507 -> timer_STOP/WDT_CLK=max
-	mov.w	r0, @r1
+	write16	RWTCSR_A, RWTCSR_D_1	! 0xA4520004 (Watchdog Control / Status Register)
+					! 0xA507 -> timer_STOP / WDT_CLK = max
 
-	mov.l	RWTCNT_A, r1	! 0xA4520000 (Watchdog Count Register)
-	mov.w	RWTCNT_D, r0	! 0x5A00 -> Clear
-	mov.w	r0, @r1
+	write16	RWTCNT_A, RWTCNT_D	! 0xA4520000 (Watchdog Count Register)
+					! 0x5A00 -> Clear
 
-	mov.l	RWTCSR_A, r1	! 0xA4520004 (Watchdog Control / Status Register)
-	mov.w	RWTCSR_D_2, r0	! 0xA504 -> timer_STOP/CLK=500ms
-	mov.w	r0, @r1
+	write16	RWTCSR_A, RWTCSR_D_2	! 0xA4520004 (Watchdog Control / Status Register)
+					! 0xA504 -> timer_STOP / CLK = 500ms
 
-	mov.l	DLLFRQ_A, r1	! 20080115
-	mov.l	DLLFRQ_D, r0	! 20080115
-	mov.l	r0, @r1
+	write32	DLLFRQ_A, DLLFRQ_D	! 20080115
+					! 20080115
 
-	mov.l	FRQCR_A, r1		! 0xA4150000 Frequency control register
-	mov.l	FRQCR_D, r0	! 20080115
-	mov.l	r0, @r1
+	write32	FRQCR_A, FRQCR_D	! 0xA4150000 Frequency control register
+					! 20080115
 
-	mov.l	CCR_A, r1		! Address of Cache Control Register
-	mov.l	CCR_D_2, r0	! ??
-	mov.l	r0, @r1
+	write32	CCR_A, CCR_D_2		! Address of Cache Control Register
+					! ??
 
 bsc_init:
-	mov.l	CMNCR_A, r1	! CMNCR address -> R1
-	mov.l	CMNCR_D, r0	! CMNCR data    -> R0
-	mov.l	r0, @r1		! CMNCR set
+	write32	CMNCR_A, CMNCR_D
 
-	mov.l	CS0BCR_A, r1	! CS0BCR address -> R1
-	mov.l	CS0BCR_D, r0	! CS0BCR data    -> R0
-	mov.l	r0, @r1		! CS0BCR set
+	write32	CS0BCR_A, CS0BCR_D
 
-	mov.l	CS4BCR_A, r1	! CS4BCR address -> R1
-	mov.l	CS4BCR_D, r0	! CS4BCR data    -> R0
-	mov.l	r0, @r1		! CS4BCR set
+	write32	CS4BCR_A, CS4BCR_D
 
-	mov.l	CS5ABCR_A, r1	! CS5ABCR address -> R1
-	mov.l	CS5ABCR_D, r0	! CS5ABCR data    -> R0
-	mov.l	r0, @r1		! CS5ABCR set
+	write32	CS5ABCR_A, CS5ABCR_D
 
-	mov.l	CS5BBCR_A, r1	! CS5BBCR address -> R1
-	mov.l	CS5BBCR_D, r0	! CS5BBCR data    -> R0
-	mov.l	r0, @r1		! CS5BBCR set
+	write32	CS5BBCR_A, CS5BBCR_D
 
-	mov.l	CS6ABCR_A, r1	! CS6ABCR address -> R1
-	mov.l	CS6ABCR_D, r0	! CS6ABCR data    -> R0
-	mov.l	r0, @r1		! CS6ABCR set
+	write32	CS6ABCR_A, CS6ABCR_D
 
-	mov.l	CS0WCR_A, r1	! CS0WCR address -> R1
-	mov.l	CS0WCR_D, r0	! CS0WCR data    -> R0
-	mov.l	r0, @r1		! CS0WCR set
+	write32	CS0WCR_A, CS0WCR_D
 
-	mov.l	CS4WCR_A, r1	! CS4WCR address -> R1
-	mov.l	CS4WCR_D, r0	! CS4WCR data    -> R0
-	mov.l	r0, @r1		! CS4WCR set
+	write32	CS4WCR_A, CS4WCR_D
 
-	mov.l	CS5AWCR_A, r1	! CS5AWCR address -> R1
-	mov.l	CS5AWCR_D, r0	! CS5AWCR data    -> R0
-	mov.l	r0, @r1		! CS5AWCR set
+	write32	CS5AWCR_A, CS5AWCR_D
 
-	mov.l	CS5BWCR_A, r1	! CS5BWCR address -> R1
-	mov.l	CS5BWCR_D, r0	! CS5BWCR data    -> R0
-	mov.l	r0, @r1		! CS5BWCR set
+	write32	CS5BWCR_A, CS5BWCR_D
 
-	mov.l	CS6AWCR_A, r1	! CS6AWCR address -> R1
-	mov.l	CS6AWCR_D, r0	! CS6AWCR data    -> R0
-	mov.l	r0, @r1		! CS6AWCR set
+	write32	CS6AWCR_A, CS6AWCR_D
 
 	! SDRAM initialization
-	mov.l	SDCR_A, r1	! SB_SDCR address -> R1
-	mov.l	SDCR_D, r0	! SB_SDCR data    -> R0
-	mov.l	r0, @r1		! SB_SDCR set
+	write32	SDCR_A, SDCR_D
 
-	mov.l	SDWCR_A, r1	! SB_SDWCR address -> R1
-	mov.l	SDWCR_D, r0	! SB_SDWCR data    -> R0
-	mov.l	r0, @r1		! SB_SDWCR set
+	write32	SDWCR_A, SDWCR_D
 
-	mov.l	SDPCR_A, r1	! SB_SDPCR address -> R1
-	mov.l	SDPCR_D, r0	! SB_SDPCR data    -> R0
-	mov.l	r0, @r1		! SB_SDPCR set
+	write32	SDPCR_A, SDPCR_D
 
-	mov.l	RTCOR_A, r1	! SB_RTCOR address -> R1
-	mov.l	RTCOR_D, r0	! SB_RTCOR data    -> R0
-	mov.l	r0, @r1		! SB_RTCOR set
+	write32	RTCOR_A, RTCOR_D
 
-	mov.l	RTCNT_A, r1	! SB_RTCNT address -> R1
-	mov.l	RTCNT_D, r0	! SB_RTCNT data    -> R0
-	mov.l	r0, @r1
+	write32	RTCNT_A, RTCNT_D
 
-	mov.l	RTCSR_A, r1	! SB_RTCSR address -> R1
-	mov.l	RTCSR_D, r0	! SB_RTCSR data    -> R0
-	mov.l	r0, @r1		! SB_RTCSR set
+	write32	RTCSR_A, RTCSR_D
 
-	mov.l	RFCR_A, r1	! SB_RFCR address -> R1
-	mov.l	RFCR_D, r0	! SB_RFCR data    -> R0
-	mov.l	r0, @r1
+	write32	RFCR_A, RFCR_D
 
-	mov.l	SDMR3_A, r1	! SDMR3 address -> R1
-	mov	#0x00, r0	! SDMR3 data    -> R0
-	mov.b	r0, @r1		! SDMR3 set
+	write8	SDMR3_A, #0x00
 
 	! BL bit off (init = ON) (?!?)
 
diff --git a/board/renesas/ap325rxa/lowlevel_init.S b/board/renesas/ap325rxa/lowlevel_init.S
index 558e779..b32f491 100644
--- a/board/renesas/ap325rxa/lowlevel_init.S
+++ b/board/renesas/ap325rxa/lowlevel_init.S
@@ -23,6 +23,7 @@
 #include <config.h>
 #include <version.h>
 #include <asm/processor.h>
+#include <asm/macro.h>
 
 /*
  * Board specific low level init code, called _very_ early in the
@@ -38,113 +39,59 @@
 	.align	2
 
 lowlevel_init:
-	mov.l	DRVCRA_A, r1
-	mov.l	DRVCRA_D, r0
-	mov.w	r0, @r1
+	write16	DRVCRA_A, DRVCRA_D
 
-	mov.l	DRVCRB_A, r1
-	mov.l	DRVCRB_D, r0
-	mov.w	r0, @r1
+	write16	DRVCRB_A, DRVCRB_D
 
-	mov.l	RWTCSR_A, r1
-	mov.l	RWTCSR_D1, r0
-	mov.w	r0, @r1
+	write16	RWTCSR_A, RWTCSR_D1
 
-	mov.l	RWTCNT_A, r1
-	mov.l	RWTCNT_D, r0
-	mov.w	r0, @r1
+	write16	RWTCNT_A, RWTCNT_D
 
-	mov.l	RWTCSR_A, r1
-	mov.l	RWTCSR_D2, r0
-	mov.w	r0, @r1
+	write16	RWTCSR_A, RWTCSR_D2
 
-	mov.l	FRQCR_A, r1
-	mov.l	FRQCR_D, r0
-	mov.l	r0, @r1
+	write32	FRQCR_A, FRQCR_D
 
-	mov.l	CMNCR_A, r1
-	mov.l	CMNCR_D, r0
-	mov.l	r0, @r1
+	write32	CMNCR_A, CMNCR_D
 
-	mov.l	CS0BCR_A, r1
-	mov.l	CS0BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS0BCR_A, CS0BCR_D
 
-	mov.l	CS4BCR_A, r1
-	mov.l	CS4BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS4BCR_A, CS4BCR_D
 
-	mov.l	CS5ABCR_A, r1
-	mov.l	CS5ABCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5ABCR_A, CS5ABCR_D
 
-	mov.l	CS5BBCR_A, r1
-	mov.l	CS5BBCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5BBCR_A, CS5BBCR_D
 
-	mov.l	CS6ABCR_A, r1
-	mov.l	CS6ABCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6ABCR_A, CS6ABCR_D
 
-	mov.l	CS6BBCR_A, r1
-	mov.l	CS6BBCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6BBCR_A, CS6BBCR_D
 
-	mov.l	CS0WCR_A, r1
-	mov.l	CS0WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS0WCR_A, CS0WCR_D
 
-	mov.l	CS4WCR_A, r1
-	mov.l	CS4WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS4WCR_A, CS4WCR_D
 
-	mov.l	CS5AWCR_A, r1
-	mov.l	CS5AWCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5AWCR_A, CS5AWCR_D
 
-	mov.l	CS5BWCR_A, r1
-	mov.l	CS5BWCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5BWCR_A, CS5BWCR_D
 
-	mov.l	CS6AWCR_A, r1
-	mov.l	CS6AWCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6AWCR_A, CS6AWCR_D
 
-	mov.l	CS6BWCR_A, r1
-	mov.l	CS6BWCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6BWCR_A, CS6BWCR_D
 
-	mov.l	SBSC_SDCR_A, r1
-	mov.l	SBSC_SDCR_D1, r0
-	mov.l	r0, @r1
+	write32	SBSC_SDCR_A, SBSC_SDCR_D1
 
-	mov.l	SBSC_SDWCR_A, r1
-	mov.l	SBSC_SDWCR_D, r0
-	mov.l	r0, @r1
+	write32	SBSC_SDWCR_A, SBSC_SDWCR_D
 
-	mov.l	SBSC_SDPCR_A, r1
-	mov.l	SBSC_SDPCR_D, r0
-	mov.l	r0, @r1
+	write32	SBSC_SDPCR_A, SBSC_SDPCR_D
 
-	mov.l	SBSC_RTCSR_A, r1
-	mov.l	SBSC_RTCSR_D, r0
-	mov.l	r0, @r1
+	write32	SBSC_RTCSR_A, SBSC_RTCSR_D
 
-	mov.l	SBSC_RTCNT_A, r1
-	mov.l	SBSC_RTCNT_D, r0
-	mov.l	r0, @r1
+	write32	SBSC_RTCNT_A, SBSC_RTCNT_D
 
-	mov.l	SBSC_RTCOR_A, r1
-	mov.l	SBSC_RTCOR_D, r0
-	mov.l	r0, @r1
+	write32	SBSC_RTCOR_A, SBSC_RTCOR_D
 
-	mov.l	SBSC_SDMR3_A1, r1
-	mov.l	SBSC_SDMR3_D, r0
-	mov.b	r0, @r1
+	write8	SBSC_SDMR3_A1, SBSC_SDMR3_D
 
-	mov.l	SBSC_SDMR3_A2, r1
-	mov.l	SBSC_SDMR3_D, r0
-	mov.b	r0, @r1
+	write8	SBSC_SDMR3_A2, SBSC_SDMR3_D
 
 	mov.l	SLEEP_CNT, r1
 2:	tst	r1, r1
@@ -152,17 +99,11 @@
 	bf/s	2b
 	dt	r1
 
-	mov.l	SBSC_SDMR3_A3, r1
-	mov.l	SBSC_SDMR3_D, r0
-	mov.b	r0, @r1
+	write8	SBSC_SDMR3_A3, SBSC_SDMR3_D
 
-	mov.l	SBSC_SDCR_A, r1
-	mov.l	SBSC_SDCR_D2, r0
-	mov.l	r0, @r1
+	write32	SBSC_SDCR_A, SBSC_SDCR_D2
 
-	mov.l	CCR_A, r1
-	mov.l	CCR_D, r0
-	mov.l	r0, @r1
+	write32	CCR_A, CCR_D
 
 	! BL bit off (init = ON) (?!?)
 
diff --git a/board/renesas/r2dplus/lowlevel_init.S b/board/renesas/r2dplus/lowlevel_init.S
index a057370..2f6a9b7 100644
--- a/board/renesas/r2dplus/lowlevel_init.S
+++ b/board/renesas/r2dplus/lowlevel_init.S
@@ -8,6 +8,7 @@
 #include <version.h>
 
 #include <asm/processor.h>
+#include <asm/macro.h>
 
 	.global lowlevel_init
 	.text
@@ -15,73 +16,39 @@
 
 lowlevel_init:
 
-	mov.l	CCR_A, r1
-	mov.l	CCR_D_D, r0
-	mov.l	r0, @r1
+	write32	CCR_A, CCR_D_D
 
-	mov.l	MMUCR_A, r1
-	mov.l	MMUCR_D, r0
-	mov.l	r0, @r1
+	write32	MMUCR_A, MMUCR_D
 
-	mov.l	BCR1_A, r1
-	mov.l	BCR1_D, r0
-	mov.l	r0, @r1
+	write32	BCR1_A, BCR1_D
 
-	mov.l	BCR2_A, r1
-	mov.l	BCR2_D, r0
-	mov.w	r0, @r1
+	write16	BCR2_A, BCR2_D
 
-	mov.l	BCR3_A, r1
-	mov.l	BCR3_D, r0
-	mov.w	r0, @r1
+	write16	BCR3_A, BCR3_D
 
-	mov.l	BCR4_A, r1
-	mov.l	BCR4_D, r0
-	mov.l	r0, @r1
+	write32	BCR4_A, BCR4_D
 
-	mov.l	WCR1_A, r1
-	mov.l	WCR1_D, r0
-	mov.l	r0, @r1
+	write32	WCR1_A, WCR1_D
 
-	mov.l	WCR2_A, r1
-	mov.l	WCR2_D, r0
-	mov.l	r0, @r1
+	write32	WCR2_A, WCR2_D
 
-	mov.l	WCR3_A, r1
-	mov.l	WCR3_D, r0
-	mov.l	r0, @r1
+	write32	WCR3_A, WCR3_D
 
-	mov.l	PCR_A, r1
-	mov.l	PCR_D, r0
-	mov.w	r0, @r1
+	write16	PCR_A, PCR_D
 
-	mov.l	LED_A, r1
-	mov	#0xff, r0
-	mov.w	r0, @r1
+	write16	LED_A, #0xff
 
-	mov.l	MCR_A, r1
-	mov.l	MCR_D1, r0
-	mov.l	r0, @r1
+	write32	MCR_A, MCR_D1
 
-	mov.l	RTCNT_A, r1
-	mov.l	RTCNT_D, r0
-	mov.w	r0, @r1
+	write16	RTCNT_A, RTCNT_D
 
-	mov.l	RTCOR_A, r1
-	mov.l	RTCOR_D, r0
-	mov.w	r0, @r1
+	write16	RTCOR_A, RTCOR_D
 
-	mov.l	RFCR_A, r1
-	mov.l	RFCR_D, r0
-	mov.w	r0, @r1
+	write16	RFCR_A, RFCR_D
 
-	mov.l	RTCSR_A, r1
-	mov.l	RTCSR_D, r0
-	mov.w	r0, @r1
+	write16	RTCSR_A, RTCSR_D
 
-	mov.l	SDMR3_A, r1
-	mov	#0x55, r0
-	mov.b	r0, @r1
+	write8	SDMR3_A, #0x55
 
 	/* Wait DRAM refresh 30 times */
 	mov.l	RFCR_A, r1
@@ -92,21 +59,13 @@
 	cmp/hi	r3, r2
 	bf	1b
 
-	mov.l	MCR_A, r1
-	mov.l	MCR_D2, r0
-	mov.l	r0, @r1
+	write32	MCR_A, MCR_D2
 
-	mov.l	SDMR3_A, r1
-	mov	#0, r0
-	mov.b	r0, @r1
+	write8	SDMR3_A, #0
 
-	mov.l	IRLMASK_A, r1
-	mov.l	IRLMASK_D, r0
-	mov.l	r0, @r1
+	write32	IRLMASK_A, IRLMASK_D
 
-	mov.l	CCR_A, r1
-	mov.l	CCR_D_E, r0
-	mov.l	r0, @r1
+	write32	CCR_A, CCR_D_E
 
 	rts
 	nop
diff --git a/board/renesas/r7780mp/lowlevel_init.S b/board/renesas/r7780mp/lowlevel_init.S
index 0df8c84..bbea621 100644
--- a/board/renesas/r7780mp/lowlevel_init.S
+++ b/board/renesas/r7780mp/lowlevel_init.S
@@ -22,6 +22,7 @@
 #include <config.h>
 #include <version.h>
 #include <asm/processor.h>
+#include <asm/macro.h>
 
 /*
  * Board specific low level init code, called _very_ early in the
@@ -38,63 +39,36 @@
 
 lowlevel_init:
 
-	mov.l	CCR_A, r1	/* Address of Cache Control Register */
-	mov.l	CCR_D, r0	/* Instruction Cache Invalidate */
-	mov.l	r0, @r1
+	write32	CCR_A, CCR_D		/* Address of Cache Control Register */
+					/* Instruction Cache Invalidate */
 
-	mov.l	FRQCR_A, r1	/* Frequency control register */
-	mov.l	FRQCR_D, r0
-	mov.l	r0, @r1
+	write32	FRQCR_A, FRQCR_D	/* Frequency control register */
 
 	/* pin_multi_setting */
-	mov.l	BBG_PMMR_A, r1
-	mov.l	BBG_PMMR_D_PMSR1, r0
-	mov.l	r0, @r1
+	write32	BBG_PMMR_A, BBG_PMMR_D_PMSR1
 
-	mov.l	BBG_PMSR1_A, r1
-	mov.l	BBG_PMSR1_D, r0
-	mov.l	r0, @r1
+	write32	BBG_PMSR1_A, BBG_PMSR1_D
 
-	mov.l	BBG_PMMR_A, r1
-	mov.l	BBG_PMMR_D_PMSR2, r0
-	mov.l	r0, @r1
+	write32	BBG_PMMR_A, BBG_PMMR_D_PMSR2
 
-	mov.l	BBG_PMSR2_A, r1
-	mov.l	BBG_PMSR2_D, r0
-	mov.l	r0, @r1
+	write32	BBG_PMSR2_A, BBG_PMSR2_D
 
-	mov.l	BBG_PMMR_A, r1
-	mov.l	BBG_PMMR_D_PMSR3, r0
-	mov.l	r0, @r1
+	write32	BBG_PMMR_A, BBG_PMMR_D_PMSR3
 
-	mov.l	BBG_PMSR3_A, r1
-	mov.l	BBG_PMSR3_D, r0
-	mov.l	r0, @r1
+	write32	BBG_PMSR3_A, BBG_PMSR3_D
 
-	mov.l	BBG_PMMR_A, r1
-	mov.l	BBG_PMMR_D_PMSR4, r0
-	mov.l	r0, @r1
+	write32	BBG_PMMR_A, BBG_PMMR_D_PMSR4
 
-	mov.l	BBG_PMSR4_A, r1
-	mov.l	BBG_PMSR4_D, r0
-	mov.l	r0, @r1
+	write32	BBG_PMSR4_A, BBG_PMSR4_D
 
-	mov.l	BBG_PMMR_A, r1
-	mov.l	BBG_PMMR_D_PMSRG, r0
-	mov.l	r0, @r1
+	write32	BBG_PMMR_A, BBG_PMMR_D_PMSRG
 
-	mov.l	BBG_PMSRG_A, r1
-	mov.l	BBG_PMSRG_D, r0
-	mov.l	r0, @r1
+	write32	BBG_PMSRG_A, BBG_PMSRG_D
 
 	/* cpg_setting */
-	mov.l	FRQCR_A, r1
-	mov.l	FRQCR_D, r0
-	mov.l	r0, @r1
+	write32	FRQCR_A, FRQCR_D
 
-	mov.l	DLLCSR_A, r1
-	mov.l	DLLCSR_D, r0
-	mov.l	r0, @r1
+	write32	DLLCSR_A, DLLCSR_D
 
 	nop
 	nop
@@ -117,69 +91,37 @@
 	nop
 
 	/* bsc_setting */
-	mov.l	MMSELR_A, r1
-	mov.l	MMSELR_D, r0
-	mov.l	r0, @r1
+	write32	MMSELR_A, MMSELR_D
 
-	mov.l	BCR_A, r1
-	mov.l	BCR_D, r0
-	mov.l	r0, @r1
+	write32	BCR_A, BCR_D
 
-	mov.l	CS0BCR_A, r1
-	mov.l	CS0BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS0BCR_A, CS0BCR_D
 
-	mov.l	CS1BCR_A, r1
-	mov.l	CS1BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS1BCR_A, CS1BCR_D
 
-	mov.l	CS2BCR_A, r1
-	mov.l	CS2BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS2BCR_A, CS2BCR_D
 
-	mov.l	CS4BCR_A, r1
-	mov.l	CS4BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS4BCR_A, CS4BCR_D
 
-	mov.l	CS5BCR_A, r1
-	mov.l	CS5BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5BCR_A, CS5BCR_D
 
-	mov.l	CS6BCR_A, r1
-	mov.l	CS6BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6BCR_A, CS6BCR_D
 
-	mov.l	CS0WCR_A, r1
-	mov.l	CS0WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS0WCR_A, CS0WCR_D
 
-	mov.l	CS1WCR_A, r1
-	mov.l	CS1WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS1WCR_A, CS1WCR_D
 
-	mov.l	CS2WCR_A, r1
-	mov.l	CS2WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS2WCR_A, CS2WCR_D
 
-	mov.l	CS4WCR_A, r1
-	mov.l	CS4WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS4WCR_A, CS4WCR_D
 
-	mov.l	CS5WCR_A, r1
-	mov.l	CS5WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5WCR_A, CS5WCR_D
 
-	mov.l	CS6WCR_A, r1
-	mov.l	CS6WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6WCR_A, CS6WCR_D
 
-	mov.l	CS5PCR_A, r1
-	mov.l	CS5PCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5PCR_A, CS5PCR_D
 
-	mov.l	CS6PCR_A, r1
-	mov.l	CS6PCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6PCR_A, CS6PCR_D
 
 	/* ddr_setting */
 	/* wait 200us */
diff --git a/board/renesas/rsk7203/lowlevel_init.S b/board/renesas/rsk7203/lowlevel_init.S
index f6a6231..7b9ecd8 100644
--- a/board/renesas/rsk7203/lowlevel_init.S
+++ b/board/renesas/rsk7203/lowlevel_init.S
@@ -21,6 +21,7 @@
 #include <version.h>
 
 #include <asm/processor.h>
+#include <asm/macro.h>
 
 	.global	lowlevel_init
 
@@ -29,140 +30,76 @@
 
 lowlevel_init:
 	/* Cache setting */
-	mov.l	CCR1_A, r1
-	mov.l	CCR1_D, r0
-	mov.l	r0, @r1
+	write32	CCR1_A ,CCR1_D
 
 	/* ConfigurePortPins */
-	mov.l	PECRL3_A, r1
-	mov.l	PECRL3_D, r0
-	mov.w	r0, @r1
+	write16	PECRL3_A, PECRL3_D
 
-	mov.l	PCCRL4_A, r1
-	mov.l	PCCRL4_D0, r0
-	mov.w	r0, @r1
+	write16	PCCRL4_A, PCCRL4_D0
 
-	mov.l	PECRL4_A, r1
-	mov.l	PECRL4_D0, r0
-	mov.w	r0, @r1
+	write16	PECRL4_A, PECRL4_D0
 
-	mov.l	PEIORL_A, r1
-	mov.l	PEIORL_D0, r0
-	mov.w	r0, @r1
+	write16	PEIORL_A, PEIORL_D0
 
-	mov.l	PCIORL_A, r1
-	mov.l	PCIORL_D, r0
-	mov.w	r0, @r1
+	write16	PCIORL_A, PCIORL_D
 
-	mov.l	PFCRH2_A, r1
-	mov.l	PFCRH2_D, r0
-	mov.w	r0, @r1
+	write16	PFCRH2_A, PFCRH2_D
 
-	mov.l	PFCRH3_A, r1
-	mov.l	PFCRH3_D, r0
-	mov.w	r0, @r1
+	write16	PFCRH3_A, PFCRH3_D
 
-	mov.l	PFCRH1_A, r1
-	mov.l	PFCRH1_D, r0
-	mov.w	r0, @r1
+	write16	PFCRH1_A, PFCRH1_D
 
-	mov.l	PFIORH_A, r1
-	mov.l	PFIORH_D, r0
-	mov.w	r0, @r1
+	write16	PFIORH_A, PFIORH_D
 
-	mov.l	PECRL1_A, r1
-	mov.l	PECRL1_D0, r0
-	mov.w	r0, @r1
+	write16	PECRL1_A, PECRL1_D0
 
-	mov.l	PEIORL_A, r1
-	mov.l	PEIORL_D1, r0
-	mov.w	r0, @r1
+	write16	PEIORL_A, PEIORL_D1
 
 	/* Configure Operating Frequency */
-	mov.l	WTCSR_A, r1
-	mov.l	WTCSR_D0, r0
-	mov.w	r0, @r1
+	write16	WTCSR_A, WTCSR_D0
 
-	mov.l	WTCSR_A, r1
-	mov.l	WTCSR_D1, r0
-	mov.w	r0, @r1
+	write16	WTCSR_A, WTCSR_D1
 
-	mov.l	WTCNT_A, r1
-	mov.l	WTCNT_D, r0
-	mov.w	r0, @r1
+	write16	WTCNT_A, WTCNT_D
 
 	/* Set clock mode*/
-	mov.l	FRQCR_A, r1
-	mov.l	FRQCR_D, r0
-	mov.w	r0, @r1
+	write16	FRQCR_A, FRQCR_D
 
 	/* Configure Bus And Memory */
 init_bsc_cs0:
-	mov.l	PCCRL4_A, r1
-	mov.l	PCCRL4_D1, r0
-	mov.w	r0, @r1
+	write16	PCCRL4_A, PCCRL4_D1
 
-	mov.l	PECRL1_A, r1
-	mov.l	PECRL1_D1, r0
-	mov.w	r0, @r1
+	write16	PECRL1_A, PECRL1_D1
 
-	mov.l	CMNCR_A, r1
-	mov.l	CMNCR_D, r0
-	mov.l	r0, @r1
+	write32	CMNCR_A, CMNCR_D
 
-	mov.l	SC0BCR_A, r1
-	mov.l	SC0BCR_D, r0
-	mov.l	r0, @r1
+	write32	SC0BCR_A, SC0BCR_D
 
-	mov.l	CS0WCR_A, r1
-	mov.l	CS0WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS0WCR_A, CS0WCR_D
 
 init_bsc_cs1:
-	mov.l	PECRL4_A, r1
-	mov.l	PECRL4_D1, r0
-	mov.w	r0, @r1
+	write16	PECRL4_A, PECRL4_D1
 
-	mov.l	CS1WCR_A, r1
-	mov.l	CS1WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS1WCR_A, CS1WCR_D
 
 init_sdram:
-	mov.l	PCCRL2_A, r1
-	mov.l	PCCRL2_D, r0
-	mov.w	r0, @r1
+	write16	PCCRL2_A, PCCRL2_D
 
-	mov.l	PCCRL4_A, r1
-	mov.l	PCCRL4_D2, r0
-	mov.w	r0, @r1
+	write16	PCCRL4_A, PCCRL4_D2
 
-	mov.l	PCCRL1_A, r1
-	mov.l	PCCRL1_D, r0
-	mov.w	r0, @r1
+	write16	PCCRL1_A, PCCRL1_D
 
-	mov.l	PCCRL3_A, r1
-	mov.l	PCCRL3_D, r0
-	mov.w	r0, @r1
+	write16	PCCRL3_A, PCCRL3_D
 
-	mov.l	CS3BCR_A, r1
-	mov.l	CS3BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS3BCR_A, CS3BCR_D
 
-	mov.l	CS3WCR_A, r1
-	mov.l	CS3WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS3WCR_A, CS3WCR_D
 
-	mov.l	SDCR_A, r1
-	mov.l	SDCR_D, r0
-	mov.l	r0, @r1
+	write32	SDCR_A, SDCR_D
 
-	mov.l	RTCOR_A, r1
-	mov.l	RTCOR_D, r0
-	mov.l	r0, @r1
+	write32	RTCOR_A, RTCOR_D
 
-	mov.l	RTCSR_A, r1
-	mov.l	RTCSR_D, r0
-	mov.l	r0, @r1
+	write32	RTCSR_A, RTCSR_D
 
 	/* wait 200us */
 	mov.l	REPEAT_D, r3
diff --git a/board/renesas/sh7763rdp/lowlevel_init.S b/board/renesas/sh7763rdp/lowlevel_init.S
index 715e75f..3747bf6 100644
--- a/board/renesas/sh7763rdp/lowlevel_init.S
+++ b/board/renesas/sh7763rdp/lowlevel_init.S
@@ -25,6 +25,7 @@
 #include <version.h>
 
 #include <asm/processor.h>
+#include <asm/macro.h>
 
 	.global	lowlevel_init
 
@@ -33,44 +34,33 @@
 
 lowlevel_init:
 
-	mov.l	WDTCSR_A, r1	/* Watchdog Control / Status Register */
-	mov.l	WDTCSR_D, r0
-	mov.l	r0, @r1
+	write32	WDTCSR_A, WDTCSR_D	/* Watchdog Control / Status Register */
 
-	mov.l	WDTST_A, r1	/* Watchdog Stop Time Register */
-	mov.l	WDTST_D, r0
-	mov.l	r0, @r1
+	write32	WDTST_A, WDTST_D	/* Watchdog Stop Time Register */
 
-	mov.l	WDTBST_A, r1	/* 0xFFCC0008 (Watchdog Base Stop Time Register */
-	mov.l	WDTBST_D, r0
-	mov.l	r0, @r1
+	write32	WDTBST_A, WDTBST_D	/*
+					 * 0xFFCC0008
+					 * Watchdog Base Stop Time Register
+					 */
 
-	mov.l	CCR_A, r1		/* Address of Cache Control Register */
-	mov.l	CCR_CACHE_ICI_D, r0	/* Instruction Cache Invalidate */
-	mov.l	r0, @r1
+	write32	CCR_A, CCR_CACHE_ICI_D	/* Address of Cache Control Register */
+					/* Instruction Cache Invalidate */
 
-	mov.l	MMUCR_A, r1		/* Address of MMU Control Register */
-	mov.l	MMU_CONTROL_TI_D, r0	/* TI == TLB Invalidate bit */
-	mov.l	r0, @r1
+	write32	MMUCR_A, MMU_CONTROL_TI_D	/* MMU Control Register */
+						/* TI == TLB Invalidate bit */
 
-	mov.l	MSTPCR0_A, r1	/* Address of Power Control Register 0 */
-	mov.l	MSTPCR0_D, r0
-	mov.l	r0, @r1
+	write32	MSTPCR0_A, MSTPCR0_D	/* Address of Power Control Register 0 */
 
-	mov.l	MSTPCR1_A, r1	/*i Address of Power Control Register 1 */
-	mov.l	MSTPCR1_D, r0
-	mov.l	r0, @r1
+	write32	MSTPCR1_A, MSTPCR1_D	/* Address of Power Control Register 1 */
 
-	mov.l	RAMCR_A, r1
-	mov.l	RAMCR_D, r0
-	mov.l	r0, @r1
+	write32	RAMCR_A, RAMCR_D
 
 	mov.l	MMSELR_A, r1
 	mov.l	MMSELR_D, r0
 	synco
 	mov.l	r0, @r1
 
-	mov.l	@r1, r2		/* execute two reads after setting MMSELR*/
+	mov.l	@r1, r2		/* execute two reads after setting MMSELR */
 	mov.l	@r1, r2
 	synco
 
@@ -79,75 +69,47 @@
 	mov.l	@r1, r0
 	synco
 
-	mov.l	MIM8_A, r1
-	mov.l	MIM8_D, r0
-	mov.l	r0, @r1
+	write32	MIM8_A, MIM8_D
 
-	mov.l	MIMC_A, r1
-	mov.l	MIMC_D1, r0
-	mov.l	r0, @r1
+	write32	MIMC_A, MIMC_D1
 
-	mov.l	STRC_A, r1
-	mov.l	STRC_D, r0
-	mov.l	r0, @r1
+	write32	STRC_A, STRC_D
 
-	mov.l	SDR4_A, r1
-	mov.l	SDR4_D, r0
-	mov.l	r0, @r1
+	write32	SDR4_A, SDR4_D
 
-	mov.l	MIMC_A, r1
-	mov.l	MIMC_D2, r0
-	mov.l	r0, @r1
+	write32	MIMC_A, MIMC_D2
 
 	nop
 	nop
 	nop
 
-	mov.l	SCR4_A, r1
-	mov.l	SCR4_D3, r0
-	mov.l	r0, @r1
+	write32	SCR4_A, SCR4_D3
 
-	mov.l	SCR4_A, r1
-	mov.l	SCR4_D2, r0
-	mov.l	r0, @r1
+	write32	SCR4_A, SCR4_D2
 
-	mov.l	SDMR02000_A, r1
-	mov.l	SDMR02000_D, r0
-	mov.l	r0, @r1
+	write32	SDMR02000_A, SDMR02000_D
 
-	mov.l	SDMR00B08_A, r1
-	mov.l	SDMR00B08_D, r0
-	mov.l	r0, @r1
+	write32	SDMR00B08_A, SDMR00B08_D
 
-	mov.l	SCR4_A, r1
-	mov.l	SCR4_D2, r0
-	mov.l	r0, @r1
+	write32	SCR4_A, SCR4_D2
 
-	mov.l	SCR4_A, r1
-	mov.l	SCR4_D4, r0
-	mov.l	r0, @r1
+	write32	SCR4_A, SCR4_D4
 
 	nop
 	nop
 	nop
 	nop
 
-	mov.l	SCR4_A, r1
-	mov.l	SCR4_D4, r0
-	mov.l	r0, @r1
+	write32	SCR4_A, SCR4_D4
 
 	nop
 	nop
 	nop
 	nop
 
-	mov.l	SDMR00308_A, r1
-	mov.l	SDMR00308_D, r0
-	mov.l	r0, @r1
+	write32	SDMR00308_A, SDMR00308_D
 
-	mov.l	MIMC_A, r1
-	mov.l	MIMC_D3, r0
-	mov.l	r0, @r1
+	write32	MIMC_A, MIMC_D3
 
 	mov.l	SCR4_A, r1
 	mov.l	SCR4_D1, r0
@@ -159,70 +121,38 @@
 	bf	delay_loop_60
 	nop
 
-	mov.l	CCR_A, r1	/* Address of Cache Control Register */
-	mov.l	CCR_CACHE_D_2, r0
-	mov.l	r0, @r1
+	write32	CCR_A, CCR_CACHE_D_2	/* Address of Cache Control Register */
 
 bsc_init:
-	mov.l	BCR_A, r1
-	mov.l	BCR_D, r0
-	mov.l	r0, @r1
+	write32	BCR_A, BCR_D
 
-	mov.l	CS0BCR_A, r1
-	mov.l	CS0BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS0BCR_A, CS0BCR_D
 
-	mov.l	CS1BCR_A, r1
-	mov.l	CS1BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS1BCR_A, CS1BCR_D
 
-	mov.l	CS2BCR_A, r1
-	mov.l	CS2BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS2BCR_A, CS2BCR_D
 
-	mov.l	CS4BCR_A, r1
-	mov.l	CS4BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS4BCR_A, CS4BCR_D
 
-	mov.l	CS5BCR_A, r1
-	mov.l	CS5BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5BCR_A, CS5BCR_D
 
-	mov.l	CS6BCR_A, r1
-	mov.l	CS6BCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6BCR_A, CS6BCR_D
 
-	mov.l	CS0WCR_A, r1
-	mov.l	CS0WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS0WCR_A, CS0WCR_D
 
-	mov.l	CS1WCR_A, r1
-	mov.l	CS1WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS1WCR_A, CS1WCR_D
 
-	mov.l	CS2WCR_A, r1
-	mov.l	CS2WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS2WCR_A, CS2WCR_D
 
-	mov.l	CS4WCR_A, r1
-	mov.l	CS4WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS4WCR_A, CS4WCR_D
 
-	mov.l	CS5WCR_A, r1
-	mov.l	CS5WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5WCR_A, CS5WCR_D
 
-	mov.l	CS6WCR_A, r1
-	mov.l	CS6WCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6WCR_A, CS6WCR_D
 
-	mov.l	CS5PCR_A, r1
-	mov.l	CS5PCR_D, r0
-	mov.l	r0, @r1
+	write32	CS5PCR_A, CS5PCR_D
 
-	mov.l	CS6PCR_A, r1
-	mov.l	CS6PCR_D, r0
-	mov.l	r0, @r1
+	write32	CS6PCR_A, CS6PCR_D
 
 	mov.l	DELAY200_D, r3
 
@@ -231,17 +161,11 @@
 	bf	delay_loop_200
 	nop
 
-	mov.l	PSEL0_A, r1
-	mov.l	PSEL0_D, r0
-	mov.w	r0, @r1
+	write16	PSEL0_A, PSEL0_D
 
-	mov.l	PSEL1_A, r1
-	mov.l	PSEL1_D, r0
-	mov.w	r0, @r1
+	write16	PSEL1_A, PSEL1_D
 
-	mov.l	ICR0_A, r1
-	mov.l	ICR0_D, r0
-	mov.l	r0, @r1
+	write32	ICR0_A, ICR0_D
 
 	stc sr, r0	/* BL bit off(init=ON) */
 	mov.l	SR_MASK_D, r1
diff --git a/board/renesas/sh7785lcr/lowlevel_init.S b/board/renesas/sh7785lcr/lowlevel_init.S
index 4cb1d9d..f5ebeb9 100644
--- a/board/renesas/sh7785lcr/lowlevel_init.S
+++ b/board/renesas/sh7785lcr/lowlevel_init.S
@@ -19,33 +19,7 @@
 #include <config.h>
 #include <version.h>
 #include <asm/processor.h>
-
-.macro	write32, addr, data
-	mov.l \addr ,r1
-	mov.l \data ,r0
-	mov.l r0, @r1
-.endm
-
-.macro	write16, addr, data
-	mov.l \addr ,r1
-	mov.l \data ,r0
-	mov.w r0, @r1
-.endm
-
-.macro	write8, addr, data
-	mov.l \addr ,r1
-	mov.l \data ,r0
-	mov.b r0, @r1
-.endm
-
-.macro	wait_timer, time
-	mov.l	\time ,r3
-1:
-	nop
-	tst	r3, r3
-	bf/s	1b
-	dt	r3
-.endm
+#include <asm/macro.h>
 
 #include <asm/processor.h>