/*
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* Copyright (C) 2011 Renesas Electronics Europe Ltd.
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* Copyright (C) 2008 Renesas Solutions Corp.
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* Copyright (C) 2008 Nobuhiro Iwamatsu
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*
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* Based on board/renesas/rsk7203/lowlevel_init.S
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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#include <asm/processor.h>
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#include <asm/macro.h>
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.global lowlevel_init
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.text
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.align 2
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lowlevel_init:
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/* Cache setting */
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write32 CCR1_A ,CCR1_D
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/* io_set_cpg */
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write8 STBCR3_A, STBCR3_D
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write8 STBCR4_A, STBCR4_D
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write8 STBCR5_A, STBCR5_D
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write8 STBCR6_A, STBCR6_D
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write8 STBCR7_A, STBCR7_D
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write8 STBCR8_A, STBCR8_D
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/* ConfigurePortPins */
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/* Leaving LED1 ON for sanity test */
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write16 PJCR1_A, PJCR1_D1
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write16 PJCR2_A, PJCR2_D
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write16 PJIOR0_A, PJIOR0_D1
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write16 PJDR0_A, PJDR0_D
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write16 PJPR0_A, PJPR0_D
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/* Configure EN_PIN & RS_PIN */
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write16 PGCR2_A, PGCR2_D
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write16 PGIOR0_A, PGIOR0_D
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/* Configure the port pins connected to UART */
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write16 PJCR1_A, PJCR1_D2
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write16 PJIOR0_A, PJIOR0_D2
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/* Configure Operating Frequency */
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write16 WTCSR_A, WTCSR_D0
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write16 WTCSR_A, WTCSR_D1
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write16 WTCNT_A, WTCNT_D
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/* Control of RESBANK */
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write16 IBNR_A, IBNR_D
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/* Enable SCIF3 module */
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write16 STBCR4_A, STBCR4_D
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/* Set clock mode*/
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write16 FRQCR_A, FRQCR_D
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/* Configure Bus And Memory */
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init_bsc_cs0:
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pfc_settings:
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write16 PCCR2_A, PCCR2_D
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write16 PCCR1_A, PCCR1_D
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write16 PCCR0_A, PCCR0_D
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write16 PBCR0_A, PBCR0_D
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write16 PBCR1_A, PBCR1_D
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write16 PBCR2_A, PBCR2_D
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write16 PBCR3_A, PBCR3_D
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write16 PBCR4_A, PBCR4_D
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write16 PBCR5_A, PBCR5_D
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write16 PDCR0_A, PDCR0_D
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write16 PDCR1_A, PDCR1_D
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write16 PDCR2_A, PDCR2_D
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write16 PDCR3_A, PDCR3_D
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write32 CS0WCR_A, CS0WCR_D
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write32 CS0BCR_A, CS0BCR_D
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init_bsc_cs2:
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write16 PJCR0_A, PJCR0_D
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write32 CS2WCR_A, CS2WCR_D
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init_sdram:
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write32 CS3BCR_A, CS3BCR_D
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write32 CS3WCR_A, CS3WCR_D
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write32 SDCR_A, SDCR_D
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write32 RTCOR_A, RTCOR_D
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write32 RTCSR_A, RTCSR_D
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/* wait 200us */
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mov.l REPEAT_D, r3
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mov #0, r2
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repeat0:
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add #1, r2
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cmp/hs r3, r2
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bf repeat0
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nop
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mov.l SDRAM_MODE, r1
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mov #0, r0
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mov.l r0, @r1
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nop
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rts
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.align 4
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CCR1_A: .long CCR1
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CCR1_D: .long 0x0000090B
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FRQCR_A: .long 0xFFFE0010
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FRQCR_D: .word 0x1003
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.align 2
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STBCR3_A: .long 0xFFFE0408
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STBCR3_D: .long 0x00000002
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STBCR4_A: .long 0xFFFE040C
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STBCR4_D: .word 0x0000
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.align 2
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STBCR5_A: .long 0xFFFE0410
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STBCR5_D: .long 0x00000010
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STBCR6_A: .long 0xFFFE0414
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STBCR6_D: .long 0x00000002
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STBCR7_A: .long 0xFFFE0418
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STBCR7_D: .long 0x0000002A
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STBCR8_A: .long 0xFFFE041C
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STBCR8_D: .long 0x0000007E
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PJCR1_A: .long 0xFFFE390C
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PJCR1_D1: .word 0x0000
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PJCR1_D2: .word 0x0022
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PJCR2_A: .long 0xFFFE390A
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PJCR2_D: .word 0x0000
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.align 2
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PJIOR0_A: .long 0xFFFE3912
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PJIOR0_D1: .word 0x0FC0
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PJIOR0_D2: .word 0x0FE0
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PJDR0_A: .long 0xFFFE3916
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PJDR0_D: .word 0x0FBF
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.align 2
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PJPR0_A: .long 0xFFFE391A
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PJPR0_D: .long 0x00000FBF
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PGCR2_A: .long 0xFFFE38CA
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PGCR2_D: .word 0x0000
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.align 2
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PGIOR0_A: .long 0xFFFE38D2
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PGIOR0_D: .word 0x03F0
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.align 2
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WTCSR_A: .long 0xFFFE0000
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WTCSR_D0: .word 0x0000
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WTCSR_D1: .word 0x0000
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WTCNT_A: .long 0xFFFE0002
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WTCNT_D: .word 0x0000
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.align 2
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PCCR0_A: .long 0xFFFE384E
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PDCR0_A: .long 0xFFFE386E
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PDCR1_A: .long 0xFFFE386C
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PDCR2_A: .long 0xFFFE386A
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PDCR3_A: .long 0xFFFE3868
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PBCR0_A: .long 0xFFFE382E
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PBCR1_A: .long 0xFFFE382C
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PBCR2_A: .long 0xFFFE382A
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PBCR3_A: .long 0xFFFE3828
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PBCR4_A: .long 0xFFFE3826
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PBCR5_A: .long 0xFFFE3824
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PCCR0_D: .word 0x1111
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PDCR0_D: .word 0x1111
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PDCR1_D: .word 0x1111
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PDCR2_D: .word 0x1111
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PDCR3_D: .word 0x1111
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PBCR0_D: .word 0x1110
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PBCR1_D: .word 0x1111
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PBCR2_D: .word 0x1111
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PBCR3_D: .word 0x1111
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PBCR4_D: .word 0x1111
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PBCR5_D: .word 0x0111
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.align 2
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CS0WCR_A: .long 0xFFFC0028
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CS0WCR_D: .long 0x00000B41
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CS0BCR_A: .long 0xFFFC0004
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CS0BCR_D: .long 0x10000400
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PJCR0_A: .long 0xFFFE390E
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PJCR0_D: .word 0x3300
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.align 2
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CS2WCR_A: .long 0xFFFC0030
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CS2WCR_D: .long 0x00000B01
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PCCR2_A: .long 0xFFFE384A
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PCCR2_D: .word 0x0001
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.align 2
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PCCR1_A: .long 0xFFFE384C
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PCCR1_D: .word 0x1111
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.align 2
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CS3BCR_A: .long 0xFFFC0010
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CS3BCR_D: .long 0x00004400
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CS3WCR_A: .long 0xFFFC0034
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CS3WCR_D: .long 0x0000288A
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SDCR_A: .long 0xFFFC004C
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SDCR_D: .long 0x00000812
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RTCOR_A: .long 0xFFFC0058
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RTCOR_D: .long 0xA55A0046
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RTCSR_A: .long 0xFFFC0050
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RTCSR_D: .long 0xA55A0010
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IBNR_A: .long 0xFFFE080E
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IBNR_D: .word 0x0000
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.align 2
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SDRAM_MODE: .long 0xFFFC5040
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REPEAT_D: .long 0x00000085
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