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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
180 lines
3.9 KiB
ArmAsm
180 lines
3.9 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2012 Renesas Electronics Europe Ltd.
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* Copyright (C) 2012 Phil Edworthy
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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/rsk7264/lowlevel_init.S
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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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/* Flush and enable caches (data cache in write-through mode) */
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write32 CCR1_A ,CCR1_D
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/* Disable WDT */
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write16 WTCSR_A, WTCSR_D
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write16 WTCNT_A, WTCNT_D
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/* Disable Register Bank interrupts */
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write16 IBNR_A, IBNR_D
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/* Set clocks based on 13.225MHz xtal */
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write16 FRQCR_A, FRQCR_D /* CPU=266MHz, I=133MHz, P=66MHz */
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/* Enable all peripherals */
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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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write8 STBCR9_A, STBCR9_D
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write8 STBCR10_A, STBCR10_D
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/* SCIF7 and IIC2 */
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write16 PJCR3_A, PJCR3_D /* TXD7 */
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write16 PECR1_A, PECR1_D /* RXD7, SDA2, SCL2 */
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/* Configure bus (CS0) */
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write16 PFCR3_A, PFCR3_D /* A24 */
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write16 PFCR2_A, PFCR2_D /* A23 and CS1# */
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write16 PBCR5_A, PBCR5_D /* A22, A21, A20 */
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write16 PCCR0_A, PCCR0_D /* DQMLL#, RD/WR# */
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write32 CS0WCR_A, CS0WCR_D
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write32 CS0BCR_A, CS0BCR_D
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/* Configure SDRAM (CS3) */
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write16 PCCR2_A, PCCR2_D /* CS3# */
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write16 PCCR1_A, PCCR1_D /* CKE, CAS#, RAS#, DQMLU# */
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write16 PCCR0_A, PCCR0_D /* DQMLL#, RD/WR# */
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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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/* Configure ethernet (CS1) */
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write16 PHCR1_A, PHCR1_D /* PINT5 on PH5 */
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write16 PHCR0_A, PHCR0_D
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write16 PFCR2_A, PFCR2_D /* CS1# */
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write32 CS1BCR_A, CS1BCR_D /* Big endian */
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write32 CS1WCR_A, CS1WCR_D /* 1 cycle */
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write16 PJDR1_A, PJDR1_D /* FIFO-SEL = 1 */
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write16 PJIOR1_A, PJIOR1_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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STBCR3_A: .long 0xFFFE0408
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STBCR4_A: .long 0xFFFE040C
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STBCR5_A: .long 0xFFFE0410
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STBCR6_A: .long 0xFFFE0414
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STBCR7_A: .long 0xFFFE0418
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STBCR8_A: .long 0xFFFE041C
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STBCR9_A: .long 0xFFFE0440
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STBCR10_A: .long 0xFFFE0444
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STBCR3_D: .long 0x0000001A
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STBCR4_D: .long 0x00000000
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STBCR5_D: .long 0x00000000
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STBCR6_D: .long 0x00000000
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STBCR7_D: .long 0x00000012
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STBCR8_D: .long 0x00000009
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STBCR9_D: .long 0x00000000
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STBCR10_D: .long 0x00000010
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WTCSR_A: .long 0xFFFE0000
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WTCNT_A: .long 0xFFFE0002
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WTCSR_D: .word 0xA518
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WTCNT_D: .word 0x5A00
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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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FRQCR_A: .long 0xFFFE0010
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FRQCR_D: .word 0x0015
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.align 2
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PJCR3_A: .long 0xFFFE3908
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PJCR3_D: .word 0x5000
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.align 2
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PECR1_A: .long 0xFFFE388C
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PECR1_D: .word 0x2011
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.align 2
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PFCR3_A: .long 0xFFFE38A8
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PFCR2_A: .long 0xFFFE38AA
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PBCR5_A: .long 0xFFFE3824
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PFCR3_D: .word 0x0010
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PFCR2_D: .word 0x0101
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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 0x00000341
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CS0BCR_A: .long 0xFFFC0004
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CS0BCR_D: .long 0x00000400
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PCCR2_A: .long 0xFFFE384A
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PCCR1_A: .long 0xFFFE384C
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PCCR0_A: .long 0xFFFE384E
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PCCR2_D: .word 0x0001
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PCCR1_D: .word 0x1111
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PCCR0_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 0x00004912
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SDCR_A: .long 0xFFFC004C
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SDCR_D: .long 0x00000811
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RTCOR_A: .long 0xFFFC0058
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RTCOR_D: .long 0xA55A0035
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RTCSR_A: .long 0xFFFC0050
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RTCSR_D: .long 0xA55A0010
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.align 2
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SDRAM_MODE: .long 0xFFFC5460
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REPEAT_D: .long 0x000033F1
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PHCR1_A: .long 0xFFFE38EC
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PHCR0_A: .long 0xFFFE38EE
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PHCR1_D: .word 0x2222
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PHCR0_D: .word 0x2222
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.align 2
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CS1BCR_A: .long 0xFFFC0008
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CS1BCR_D: .long 0x00000400
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CS1WCR_A: .long 0xFFFC002C
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CS1WCR_D: .long 0x00000080
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PJDR1_A: .long 0xFFFE3914
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PJDR1_D: .word 0x0000
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.align 2
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PJIOR1_A: .long 0xFFFE3910
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PJIOR1_D: .word 0x8000
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.align 2
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