diff options
Diffstat (limited to 'board/ms7722se')
| -rw-r--r-- | board/ms7722se/lowlevel_init.S | 195 |
1 files changed, 63 insertions, 132 deletions
diff --git a/board/ms7722se/lowlevel_init.S b/board/ms7722se/lowlevel_init.S index 8b46595..1cb57e7 100644 --- a/board/ms7722se/lowlevel_init.S +++ b/board/ms7722se/lowlevel_init.S @@ -27,13 +27,14 @@ #include <version.h> #include <asm/processor.h> +#include <asm/macro.h> /* - * Board specific low level init code, called _very_ early in the - * startup sequence. Relocation to SDRAM has not happened yet, no - * stack is available, bss section has not been initialised, etc. + * Board specific low level init code, called _very_ early in the + * startup sequence. Relocation to SDRAM has not happened yet, no + * stack is available, bss section has not been initialised, etc. * - * (Note: As no stack is available, no subroutines can be called...). + * (Note: As no stack is available, no subroutines can be called...). */ .global lowlevel_init @@ -43,167 +44,96 @@ lowlevel_init: - /* Address of Cache Control Register */ - mov.l CCR_A, r1 - /*Instruction Cache Invalidate */ - mov.l CCR_D, r0 - mov.l r0, @r1 + /* + * Cache Control Register + * Instruction Cache Invalidate + */ + write32 CCR_A, CCR_D - /* Address of MMU Control Register */ - mov.l MMUCR_A, r1 - /* TI == TLB Invalidate bit */ - mov.l MMUCR_D, r0 - mov.l r0, @r1 + /* + * Address of MMU Control Register + * TI == TLB Invalidate bit + */ + write32 MMUCR_A, MMUCR_D /* Address of Power Control Register 0 */ - mov.l MSTPCR0_A, r1 - mov.l MSTPCR0_D, r0 - mov.l r0, @r1 + write32 MSTPCR0_A, MSTPCR0_D /* Address of Power Control Register 2 */ - mov.l MSTPCR2_A, r1 - mov.l MSTPCR2_D, r0 - mov.l r0, @r1 + write32 MSTPCR2_A, MSTPCR2_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 /* 0xA4520004 (Watchdog Control / Status Register) */ -! mov.l RWTCSR_A, r1 - /* 0xA507 -> timer_STOP/WDT_CLK=max */ -! mov.w RWTCSR_D_1, r0 -! mov.w r0, @r1 +! write16 RWTCSR_A, RWTCSR_D_1 /* 0xA507 -> timer_STOP/WDT_CLK=max */ /* 0xA4520000 (Watchdog Count Register) */ - mov.l RWTCNT_A, r1 - /*0x5A00 -> Clear */ - mov.w RWTCNT_D, r0 - mov.w r0, @r1 + write16 RWTCNT_A, RWTCNT_D /*0x5A00 -> Clear */ /* 0xA4520004 (Watchdog Control / Status Register) */ - mov.l RWTCSR_A, r1 - /* 0xA504 -> timer_STOP/CLK=500ms */ - mov.w RWTCSR_D_2, r0 - mov.w r0, @r1 + write16 RWTCSR_A, RWTCSR_D_2 /* 0xA504 -> timer_STOP/CLK=500ms */ /* 0xA4150000 Frequency control register */ - mov.l FRQCR_A, r1 - mov.l FRQCR_D, r0 ! - mov.l r0, @r1 + write32 FRQCR_A, FRQCR_D - mov.l CCR_A, r1 - mov.l CCR_D_2, r0 - mov.l r0, @r1 + write32 CCR_A, CCR_D_2 bsc_init: - mov.l PSELA_A, r1 - mov.w PSELA_D, r0 - mov.w r0, @r1 + write16 PSELA_A, PSELA_D - mov.l DRVCR_A, r1 - mov.w DRVCR_D, r0 - mov.w r0, @r1 + write16 DRVCR_A, DRVCR_D - mov.l PCCR_A, r1 - mov.w PCCR_D, r0 - mov.w r0, @r1 + write16 PCCR_A, PCCR_D - mov.l PECR_A, r1 - mov.w PECR_D, r0 - mov.w r0, @r1 + write16 PECR_A, PECR_D - mov.l PJCR_A, r1 - mov.w PJCR_D, r0 - mov.w r0, @r1 + write16 PJCR_A, PJCR_D - mov.l PXCR_A, r1 - mov.w PXCR_D, r0 - mov.w r0, @r1 + write16 PXCR_A, PXCR_D - 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 CS2BCR_A, r1 ! CS2BCR address -> R1 - mov.l CS2BCR_D, r0 ! CS2BCR data -> R0 - mov.l r0, @r1 ! CS2BCR set + write32 CS2BCR_A, CS2BCR_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 CS2WCR_A, r1 ! CS2WCR address -> R1 - mov.l CS2WCR_D, r0 ! CS2WCR data -> R0 - mov.l r0, @r1 ! CS2WCR set + write32 CS2WCR_A, CS2WCR_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 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 SDMR3_A, r1 ! SDMR3 address -> R1 - mov #0x00, r0 ! SDMR3 data -> R0 - mov.b r0, @r1 ! SDMR3 set + write8 SDMR3_A, SDMR3_D - ! BL bit off (init = ON) (?!?) + ! BL bit off (init = ON) (?!?) stc sr, r0 ! BL bit off(init=ON) mov.l SR_MASK_D, r1 @@ -232,28 +162,28 @@ MSTPCR0_D: .long 0x00001001 MSTPCR2_D: .long 0xffffffff FRQCR_D: .long 0x07022538 -PSELA_A: .long 0xa405014E -PSELA_D: .word 0x0A10 +PSELA_A: .long 0xa405014E +PSELA_D: .word 0x0A10 .align 2 -DRVCR_A: .long 0xa405018A -DRVCR_D: .word 0x0554 +DRVCR_A: .long 0xa405018A +DRVCR_D: .word 0x0554 .align 2 -PCCR_A: .long 0xa4050104 -PCCR_D: .word 0x8800 +PCCR_A: .long 0xa4050104 +PCCR_D: .word 0x8800 .align 2 -PECR_A: .long 0xa4050108 -PECR_D: .word 0x0000 +PECR_A: .long 0xa4050108 +PECR_D: .word 0x0000 .align 2 -PJCR_A: .long 0xa4050110 -PJCR_D: .word 0x1000 +PJCR_A: .long 0xa4050110 +PJCR_D: .word 0x1000 .align 2 -PXCR_A: .long 0xa4050148 -PXCR_D: .word 0x0AAA +PXCR_A: .long 0xa4050148 +PXCR_D: .word 0x0AAA .align 2 CMNCR_A: .long CMNCR @@ -295,6 +225,7 @@ RTCOR_D: .long 0xA55A0034 RTCSR_A: .long SBSC_RTCSR RTCSR_D: .long 0xA55A0010 SDMR3_A: .long 0xFE500180 +SDMR3_D: .long 0x0 .align 1 |