lowlevel_init.S
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/*
* Copyright (C) 2008 Nobuhiro Iwamatsu
* Copyright (C) 2008 Renesas Solutions Corp.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <config.h>
#include <asm/processor.h>
#include <asm/macro.h>
.global lowlevel_init
.text
.align 2
lowlevel_init:
/* Cache setting */
write32 CCR1_A ,CCR1_D
/* ConfigurePortPins */
write16 PECRL3_A, PECRL3_D
write16 PCCRL4_A, PCCRL4_D0
write16 PECRL4_A, PECRL4_D0
write16 PEIORL_A, PEIORL_D0
write16 PCIORL_A, PCIORL_D
write16 PFCRH2_A, PFCRH2_D
write16 PFCRH3_A, PFCRH3_D
write16 PFCRH1_A, PFCRH1_D
write16 PFIORH_A, PFIORH_D
write16 PECRL1_A, PECRL1_D0
write16 PEIORL_A, PEIORL_D1
/* Configure Operating Frequency */
write16 WTCSR_A, WTCSR_D0
write16 WTCSR_A, WTCSR_D1
write16 WTCNT_A, WTCNT_D
/* Set clock mode*/
write16 FRQCR_A, FRQCR_D
/* Configure Bus And Memory */
init_bsc_cs0:
write16 PCCRL4_A, PCCRL4_D1
write16 PECRL1_A, PECRL1_D1
write32 CMNCR_A, CMNCR_D
write32 CS0BCR_A, CS0BCR_D
write32 CS0WCR_A, CS0WCR_D
init_bsc_cs1:
write16 PECRL4_A, PECRL4_D1
write32 CS1WCR_A, CS1WCR_D
init_sdram:
write16 PCCRL2_A, PCCRL2_D
write16 PCCRL4_A, PCCRL4_D2
write16 PCCRL1_A, PCCRL1_D
write16 PCCRL3_A, PCCRL3_D
write32 CS3BCR_A, CS3BCR_D
write32 CS3WCR_A, CS3WCR_D
write32 SDCR_A, SDCR_D
write32 RTCOR_A, RTCOR_D
write32 RTCSR_A, RTCSR_D
/* wait 200us */
mov.l REPEAT_D, r3
mov #0, r2
repeat0:
add #1, r2
cmp/hs r3, r2
bf repeat0
nop
mov.l SDRAM_MODE, r1
mov #0, r0
mov.l r0, @r1
nop
rts
.align 4
CCR1_A: .long CCR1
CCR1_D: .long 0x0000090B
PCCRL4_A: .long 0xFFFE3910
PCCRL4_D0: .word 0x0000
.align 2
PECRL4_A: .long 0xFFFE3A10
PECRL4_D0: .word 0x0000
.align 2
PECRL3_A: .long 0xFFFE3A12
PECRL3_D: .word 0x0000
.align 2
PEIORL_A: .long 0xFFFE3A06
PEIORL_D0: .word 0x1C00
PEIORL_D1: .word 0x1C02
PCIORL_A: .long 0xFFFE3906
PCIORL_D: .word 0x4000
.align 2
PFCRH2_A: .long 0xFFFE3A8C
PFCRH2_D: .word 0x0000
.align 2
PFCRH3_A: .long 0xFFFE3A8A
PFCRH3_D: .word 0x0000
.align 2
PFCRH1_A: .long 0xFFFE3A8E
PFCRH1_D: .word 0x0000
.align 2
PFIORH_A: .long 0xFFFE3A84
PFIORH_D: .word 0x0729
.align 2
PECRL1_A: .long 0xFFFE3A16
PECRL1_D0: .word 0x0033
.align 2
WTCSR_A: .long 0xFFFE0000
WTCSR_D0: .word 0xA518
WTCSR_D1: .word 0xA51D
WTCNT_A: .long 0xFFFE0002
WTCNT_D: .word 0x5A84
.align 2
FRQCR_A: .long 0xFFFE0010
FRQCR_D: .word 0x0104
.align 2
PCCRL4_D1: .word 0x0010
PECRL1_D1: .word 0x0133
CMNCR_A: .long 0xFFFC0000
CMNCR_D: .long 0x00001810
CS0BCR_A: .long 0xFFFC0004
CS0BCR_D: .long 0x10000400
CS0WCR_A: .long 0xFFFC0028
CS0WCR_D: .long 0x00000B41
PECRL4_D1: .word 0x0100
.align 2
CS1WCR_A: .long 0xFFFC002C
CS1WCR_D: .long 0x00000B01
PCCRL4_D2: .word 0x0011
.align 2
PCCRL3_A: .long 0xFFFE3912
PCCRL3_D: .word 0x0011
.align 2
PCCRL2_A: .long 0xFFFE3914
PCCRL2_D: .word 0x1111
.align 2
PCCRL1_A: .long 0xFFFE3916
PCCRL1_D: .word 0x1010
.align 2
PDCRL4_A: .long 0xFFFE3990
PDCRL4_D: .word 0x0011
.align 2
PDCRL3_A: .long 0xFFFE3992
PDCRL3_D: .word 0x00011
.align 2
PDCRL2_A: .long 0xFFFE3994
PDCRL2_D: .word 0x1111
.align 2
PDCRL1_A: .long 0xFFFE3996
PDCRL1_D: .word 0x1000
.align 2
CS3BCR_A: .long 0xFFFC0010
CS3BCR_D: .long 0x00004400
CS3WCR_A: .long 0xFFFC0034
CS3WCR_D: .long 0x00002892
SDCR_A: .long 0xFFFC004C
SDCR_D: .long 0x00000809
RTCOR_A: .long 0xFFFC0058
RTCOR_D: .long 0xA55A0041
RTCSR_A: .long 0xFFFC0050
RTCSR_D: .long 0xa55a0010
SDRAM_MODE: .long 0xFFFC5040
REPEAT_D: .long 0x00009C40