diff options
Diffstat (limited to 'board/mpr2/lowlevel_init.S')
| -rw-r--r-- | board/mpr2/lowlevel_init.S | 75 |
1 files changed, 29 insertions, 46 deletions
diff --git a/board/mpr2/lowlevel_init.S b/board/mpr2/lowlevel_init.S index 060957a..5f02bd4 100644 --- a/board/mpr2/lowlevel_init.S +++ b/board/mpr2/lowlevel_init.S @@ -22,6 +22,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA */ +#include <asm/macro.h> .global lowlevel_init @@ -33,59 +34,35 @@ lowlevel_init: /* * Set frequency multipliers and dividers in FRQCR. */ - mov.l WTCSR_A,r1 - mov.l WTCSR_D,r0 - mov.w r0,@r1 + write16 WTCSR_A, WTCSR_D - mov.l WTCNT_A,r1 - mov.l WTCNT_D,r0 - mov.w r0,@r1 + write16 WTCNT_A, WTCNT_D - mov.l FRQCR_A,r1 - mov.l FRQCR_D,r0 - mov.w r0,@r1 + write16 FRQCR_A, FRQCR_D /* * Setup CS0 (Flash). */ - mov.l CS0BCR_A, r1 - mov.l CS0BCR_D, r0 - mov.l r0, @r1 + write32 CS0BCR_A, CS0BCR_D - mov.l CS0WCR_A, r1 - mov.l CS0WCR_D, r0 - mov.l r0, @r1 + write32 CS0WCR_A, CS0WCR_D /* * Setup CS3 (SDRAM). */ - 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_D1, r0 - mov.l r0, @r1 + write32 SDCR_A, SDCR_D1 - mov.l RTCSR_A, r1 - mov.l RTCSR_D, r0 - mov.l r0, @r1 + write32 RTCSR_A, RTCSR_D - mov.l RTCNT_A, r1 - mov.l RTCNT_D, r0 - mov.l r0, @r1 + write32 RTCNT_A, RTCNT_D - mov.l RTCOR_A, r1 - mov.l RTCOR_D, r0 - mov.l r0, @r1 + write32 RTCOR_A, RTCOR_D - mov.l SDCR_A, r1 - mov.l SDCR_D2, r0 - mov.l r0, @r1 + write32 SDCR_A, SDCR_D2 mov.l SDMR3_A, r1 mov.l SDMR3_D, r0 @@ -112,21 +89,27 @@ WTCSR_D: .long 0xA507 /* divide by 4096 */ /* * Spansion S29GL256N11 @ 48 MHz */ -CS0BCR_D: .long 0x12490400 /* 1 idle cycle inserted, normal space, 16 bit */ -CS0WCR_D: .long 0x00000340 /* tSW=0.5ck, 6 wait cycles, NO external wait, tHW=0.5ck */ +/* 1 idle cycle inserted, normal space, 16 bit */ +CS0BCR_D: .long 0x12490400 +/* tSW=0.5ck, 6 wait cycles, NO external wait, tHW=0.5ck */ +CS0WCR_D: .long 0x00000340 /* * Samsung K4S511632B-UL75 @ 48 MHz * Micron MT48LC32M16A2-75 @ 48 MHz */ -CS3BCR_D: .long 0x10004400 /* CS3BCR = 0x10004400, minimum idle cycles, SDRAM, 16 bit */ -CS3WCR_D: .long 0x00000091 /* tRP=1ck, tRCD=1ck, CL=2, tRWL=2ck, tRC=4ck */ -SDCR_D1: .long 0x00000012 /* no refresh, 13 rows, 10 cols, NO bank active mode */ -SDCR_D2: .long 0x00000812 /* refresh */ -RTCSR_D: .long 0xA55A0008 /* 1/4, once */ -RTCNT_D: .long 0xA55A005D /* count 93 */ -RTCOR_D: .long 0xa55a005d /* count 93 */ -SDMR3_D: .long 0x440 /* mode register CL2, burst read and SINGLE WRITE */ +/* CS3BCR = 0x10004400, minimum idle cycles, SDRAM, 16 bit */ +CS3BCR_D: .long 0x10004400 +/* tRP=1ck, tRCD=1ck, CL=2, tRWL=2ck, tRC=4ck */ +CS3WCR_D: .long 0x00000091 +/* no refresh, 13 rows, 10 cols, NO bank active mode */ +SDCR_D1: .long 0x00000012 +SDCR_D2: .long 0x00000812 /* refresh */ +RTCSR_D: .long 0xA55A0008 /* 1/4, once */ +RTCNT_D: .long 0xA55A005D /* count 93 */ +RTCOR_D: .long 0xa55a005d /* count 93 */ +/* mode register CL2, burst read and SINGLE WRITE */ +SDMR3_D: .long 0x440 /* * Registers |