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				https://github.com/smaeul/u-boot.git
				synced 2025-11-04 05:50:17 +00:00 
			
		
		
		
	Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
		
			
				
	
	
		
			215 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
			
		
		
	
	
			215 lines
		
	
	
		
			4.0 KiB
		
	
	
	
		
			ArmAsm
		
	
	
	
	
	
/*
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 * Copyright (C) 2008 Nobuhiro Iwamatsu
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 * Copyright (C) 2008 Renesas Solutions Corp.
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License as
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 * published by the Free Software Foundation; either version 2 of
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 * the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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 * MA 02111-1307 USA
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 */
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#include <config.h>
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#include <version.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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	/* ConfigurePortPins */
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	write16	PECRL3_A, PECRL3_D
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	write16	PCCRL4_A, PCCRL4_D0
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	write16	PECRL4_A, PECRL4_D0
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	write16	PEIORL_A, PEIORL_D0
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	write16	PCIORL_A, PCIORL_D
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	write16	PFCRH2_A, PFCRH2_D
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	write16	PFCRH3_A, PFCRH3_D
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	write16	PFCRH1_A, PFCRH1_D
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	write16	PFIORH_A, PFIORH_D
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	write16	PECRL1_A, PECRL1_D0
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	write16	PEIORL_A, PEIORL_D1
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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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	/* 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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	write16	PCCRL4_A, PCCRL4_D1
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	write16	PECRL1_A, PECRL1_D1
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	write32	CMNCR_A, CMNCR_D
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	write32	CS0BCR_A, CS0BCR_D
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	write32	CS0WCR_A, CS0WCR_D
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init_bsc_cs1:
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	write16	PECRL4_A, PECRL4_D1
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	write32	CS1WCR_A, CS1WCR_D
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init_sdram:
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	write16	PCCRL2_A, PCCRL2_D
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	write16	PCCRL4_A, PCCRL4_D2
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	write16	PCCRL1_A, PCCRL1_D
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	write16	PCCRL3_A, PCCRL3_D
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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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PCCRL4_A:	.long 0xFFFE3910
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PCCRL4_D0:	.word 0x0000
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.align 2
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PECRL4_A:	.long 0xFFFE3A10
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PECRL4_D0:	.word 0x0000
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.align 2
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PECRL3_A:	.long 0xFFFE3A12
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PECRL3_D:	.word 0x0000
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.align 2
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PEIORL_A:	.long 0xFFFE3A06
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PEIORL_D0:	.word 0x1C00
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PEIORL_D1:	.word 0x1C02
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PCIORL_A:	.long 0xFFFE3906
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PCIORL_D:	.word 0x4000
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.align 2
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PFCRH2_A:	.long 0xFFFE3A8C
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PFCRH2_D:	.word 0x0000
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.align 2
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PFCRH3_A:	.long 0xFFFE3A8A
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PFCRH3_D:	.word 0x0000
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.align 2
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PFCRH1_A:	.long 0xFFFE3A8E
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PFCRH1_D:	.word 0x0000
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.align 2
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PFIORH_A:	.long 0xFFFE3A84
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PFIORH_D:	.word 0x0729
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.align 2
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PECRL1_A:	.long 0xFFFE3A16
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PECRL1_D0:	.word 0x0033
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.align 2
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WTCSR_A:	.long 0xFFFE0000
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WTCSR_D0:	.word 0xA518
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WTCSR_D1:	.word 0xA51D
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WTCNT_A:	.long 0xFFFE0002
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WTCNT_D:	.word 0x5A84
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.align 2
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FRQCR_A:	.long 0xFFFE0010
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FRQCR_D:	.word 0x0104
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.align 2
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PCCRL4_D1:	.word 0x0010
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PECRL1_D1:	.word 0x0133
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CMNCR_A:	.long 0xFFFC0000
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CMNCR_D:	.long 0x00001810
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CS0BCR_A:	.long 0xFFFC0004
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CS0BCR_D:	.long 0x10000400
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CS0WCR_A:	.long 0xFFFC0028
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CS0WCR_D:	.long 0x00000B41
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PECRL4_D1:	.word 0x0100
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.align 2
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CS1WCR_A:	.long 0xFFFC002C
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CS1WCR_D:	.long 0x00000B01
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PCCRL4_D2:	.word 0x0011
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.align 2
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PCCRL3_A:	.long 0xFFFE3912
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PCCRL3_D:	.word 0x0011
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.align 2
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PCCRL2_A:	.long 0xFFFE3914
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PCCRL2_D:	.word 0x1111
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.align 2
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PCCRL1_A:	.long 0xFFFE3916
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PCCRL1_D:	.word 0x1010
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.align 2
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PDCRL4_A:	.long 0xFFFE3990
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PDCRL4_D:	.word 0x0011
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.align 2
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PDCRL3_A:	.long 0xFFFE3992
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PDCRL3_D:	.word 0x00011
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.align 2
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PDCRL2_A:	.long 0xFFFE3994
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PDCRL2_D:	.word 0x1111
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.align 2
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PDCRL1_A:	.long 0xFFFE3996
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PDCRL1_D:	.word 0x1000
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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 0x00002892
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SDCR_A:		.long 0xFFFC004C
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SDCR_D:		.long 0x00000809
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RTCOR_A:	.long 0xFFFC0058
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RTCOR_D:	.long 0xA55A0041
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RTCSR_A:	.long 0xFFFC0050
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RTCSR_D:	.long 0xa55a0010
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SDRAM_MODE:	.long 0xFFFC5040
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REPEAT_D:	.long 0x00009C40
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