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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2008 Renesas Solutions Corp.
* Copyright (C) 2008 Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
*
* board/ap325rxa/lowlevel_init.S
*/
#include <config.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.
*
* (Note: As no stack is available, no subroutines can be called...).
*/
.global lowlevel_init
.text
.align 2
lowlevel_init:
write16 DRVCRA_A, DRVCRA_D
write16 DRVCRB_A, DRVCRB_D
write16 RWTCSR_A, RWTCSR_D1
write16 RWTCNT_A, RWTCNT_D
write16 RWTCSR_A, RWTCSR_D2
write32 FRQCR_A, FRQCR_D
write32 CMNCR_A, CMNCR_D
write32 CS0BCR_A, CS0BCR_D
write32 CS4BCR_A, CS4BCR_D
write32 CS5ABCR_A, CS5ABCR_D
write32 CS5BBCR_A, CS5BBCR_D
write32 CS6ABCR_A, CS6ABCR_D
write32 CS6BBCR_A, CS6BBCR_D
write32 CS0WCR_A, CS0WCR_D
write32 CS4WCR_A, CS4WCR_D
write32 CS5AWCR_A, CS5AWCR_D
write32 CS5BWCR_A, CS5BWCR_D
write32 CS6AWCR_A, CS6AWCR_D
write32 CS6BWCR_A, CS6BWCR_D
write32 SBSC_SDCR_A, SBSC_SDCR_D1
write32 SBSC_SDWCR_A, SBSC_SDWCR_D
write32 SBSC_SDPCR_A, SBSC_SDPCR_D
write32 SBSC_RTCSR_A, SBSC_RTCSR_D
write32 SBSC_RTCNT_A, SBSC_RTCNT_D
write32 SBSC_RTCOR_A, SBSC_RTCOR_D
write8 SBSC_SDMR3_A1, SBSC_SDMR3_D
write8 SBSC_SDMR3_A2, SBSC_SDMR3_D
mov.l SLEEP_CNT, r1
2: tst r1, r1
nop
bf/s 2b
dt r1
write8 SBSC_SDMR3_A3, SBSC_SDMR3_D
write32 SBSC_SDCR_A, SBSC_SDCR_D2
write32 CCR_A, CCR_D
! BL bit off (init = ON) (?!?)
stc sr, r0 ! BL bit off(init=ON)
mov.l SR_MASK_D, r1
and r1, r0
ldc r0, sr
rts
mov #0, r0
.align 2
DRVCRA_A: .long DRVCRA
DRVCRB_A: .long DRVCRB
DRVCRA_D: .word 0x4555
DRVCRB_D: .word 0x0005
RWTCSR_A: .long RWTCSR
RWTCNT_A: .long RWTCNT
FRQCR_A: .long FRQCR
RWTCSR_D1: .word 0xa507
RWTCSR_D2: .word 0xa504
RWTCNT_D: .word 0x5a00
.align 2
FRQCR_D: .long 0x0b04474a
SBSC_SDCR_A: .long SBSC_SDCR
SBSC_SDWCR_A: .long SBSC_SDWCR
SBSC_SDPCR_A: .long SBSC_SDPCR
SBSC_RTCSR_A: .long SBSC_RTCSR
SBSC_RTCNT_A: .long SBSC_RTCNT
SBSC_RTCOR_A: .long SBSC_RTCOR
SBSC_SDMR3_A1: .long 0xfe510000
SBSC_SDMR3_A2: .long 0xfe500242
SBSC_SDMR3_A3: .long 0xfe5c0042
SBSC_SDCR_D1: .long 0x92810112
SBSC_SDCR_D2: .long 0x92810912
SBSC_SDWCR_D: .long 0x05162482
SBSC_SDPCR_D: .long 0x00300087
SBSC_RTCSR_D: .long 0xa55a0212
SBSC_RTCNT_D: .long 0xa55a0000
SBSC_RTCOR_D: .long 0xa55a0040
SBSC_SDMR3_D: .long 0x00
CMNCR_A: .long CMNCR
CS0BCR_A: .long CS0BCR
CS4BCR_A: .long CS4BCR
CS5ABCR_A: .long CS5ABCR
CS5BBCR_A: .long CS5BBCR
CS6ABCR_A: .long CS6ABCR
CS6BBCR_A: .long CS6BBCR
CS0WCR_A: .long CS0WCR
CS4WCR_A: .long CS4WCR
CS5AWCR_A: .long CS5AWCR
CS5BWCR_A: .long CS5BWCR
CS6AWCR_A: .long CS6AWCR
CS6BWCR_A: .long CS6BWCR
CMNCR_D: .long 0x00000013
CS0BCR_D: .long 0x24920400
CS4BCR_D: .long 0x24920400
CS5ABCR_D: .long 0x24920400
CS5BBCR_D: .long 0x7fff0600
CS6ABCR_D: .long 0x24920400
CS6BBCR_D: .long 0x24920600
CS0WCR_D: .long 0x00000480
CS4WCR_D: .long 0x00000480
CS5AWCR_D: .long 0x00000380
CS5BWCR_D: .long 0x00000080
CS6AWCR_D: .long 0x00000300
CS6BWCR_D: .long 0x00000540
CCR_A: .long 0xff00001c
CCR_D: .long 0x0000090d
SLEEP_CNT: .long 0x00000800
SR_MASK_D: .long 0xEFFFFF0F
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