mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-06 21:24:29 +00:00
83d290c56f
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>
356 lines
5.5 KiB
ArmAsm
356 lines
5.5 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2007,2008 Nobuhiro Iwamatsu
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*
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* u-boot/board/r7780mp/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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/*
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* Board specific low level init code, called _very_ early in the
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* startup sequence. Relocation to SDRAM has not happened yet, no
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* stack is available, bss section has not been initialised, etc.
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*
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* (Note: As no stack is available, no subroutines can be called...).
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*/
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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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write32 CCR_A, CCR_D /* Address of Cache Control Register */
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/* Instruction Cache Invalidate */
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write32 FRQCR_A, FRQCR_D /* Frequency control register */
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/* pin_multi_setting */
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write32 BBG_PMMR_A, BBG_PMMR_D_PMSR1
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write32 BBG_PMSR1_A, BBG_PMSR1_D
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write32 BBG_PMMR_A, BBG_PMMR_D_PMSR2
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write32 BBG_PMSR2_A, BBG_PMSR2_D
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write32 BBG_PMMR_A, BBG_PMMR_D_PMSR3
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write32 BBG_PMSR3_A, BBG_PMSR3_D
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write32 BBG_PMMR_A, BBG_PMMR_D_PMSR4
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write32 BBG_PMSR4_A, BBG_PMSR4_D
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write32 BBG_PMMR_A, BBG_PMMR_D_PMSRG
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write32 BBG_PMSRG_A, BBG_PMSRG_D
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/* cpg_setting */
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write32 FRQCR_A, FRQCR_D
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write32 DLLCSR_A, DLLCSR_D
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nop
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nop
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nop
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nop
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nop
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nop
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nop
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nop
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nop
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nop
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/* wait 200us */
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mov.l REPEAT0_R3, 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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/* bsc_setting */
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write32 MMSELR_A, MMSELR_D
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write32 BCR_A, BCR_D
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write32 CS0BCR_A, CS0BCR_D
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write32 CS1BCR_A, CS1BCR_D
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write32 CS2BCR_A, CS2BCR_D
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write32 CS4BCR_A, CS4BCR_D
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write32 CS5BCR_A, CS5BCR_D
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write32 CS6BCR_A, CS6BCR_D
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write32 CS0WCR_A, CS0WCR_D
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write32 CS1WCR_A, CS1WCR_D
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write32 CS2WCR_A, CS2WCR_D
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write32 CS4WCR_A, CS4WCR_D
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write32 CS5WCR_A, CS5WCR_D
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write32 CS6WCR_A, CS6WCR_D
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write32 CS5PCR_A, CS5PCR_D
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write32 CS6PCR_A, CS6PCR_D
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/* ddr_setting */
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/* wait 200us */
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mov.l REPEAT0_R3, r3
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mov #0, r2
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repeat1:
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add #1, r2
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cmp/hs r3, r2
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bf repeat1
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nop
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mov.l MIM_U_A, r0
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mov.l MIM_U_D, r1
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synco
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mov.l r1, @r0
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synco
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mov.l MIM_L_A, r0
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mov.l MIM_L_D0, r1
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synco
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mov.l r1, @r0
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synco
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mov.l STR_L_A, r0
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mov.l STR_L_D, r1
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synco
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mov.l r1, @r0
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synco
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mov.l SDR_L_A, r0
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mov.l SDR_L_D, r1
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synco
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mov.l r1, @r0
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synco
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nop
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nop
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nop
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nop
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mov.l SCR_L_A, r0
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mov.l SCR_L_D0, r1
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synco
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mov.l r1, @r0
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synco
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mov.l SCR_L_A, r0
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mov.l SCR_L_D1, r1
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synco
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mov.l r1, @r0
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synco
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nop
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nop
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nop
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mov.l EMRS_A, r0
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mov.l EMRS_D, r1
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synco
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mov.l r1, @r0
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synco
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nop
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nop
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nop
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mov.l MRS1_A, r0
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mov.l MRS1_D, r1
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synco
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mov.l r1, @r0
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synco
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nop
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nop
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nop
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mov.l SCR_L_A, r0
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mov.l SCR_L_D2, r1
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synco
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mov.l r1, @r0
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synco
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nop
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nop
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nop
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mov.l SCR_L_A, r0
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mov.l SCR_L_D3, r1
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synco
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mov.l r1, @r0
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synco
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nop
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nop
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nop
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mov.l SCR_L_A, r0
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mov.l SCR_L_D4, r1
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synco
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mov.l r1, @r0
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synco
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nop
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nop
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nop
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mov.l MRS2_A, r0
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mov.l MRS2_D, r1
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synco
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mov.l r1, @r0
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synco
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nop
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nop
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nop
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mov.l SCR_L_A, r0
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mov.l SCR_L_D5, r1
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synco
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mov.l r1, @r0
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synco
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/* wait 200us */
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mov.l REPEAT0_R1, r3
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mov #0, r2
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repeat2:
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add #1, r2
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cmp/hs r3, r2
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bf repeat2
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synco
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mov.l MIM_L_A, r0
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mov.l MIM_L_D1, r1
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synco
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mov.l r1, @r0
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synco
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rts
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nop
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.align 4
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RWTCSR_D_1: .word 0xA507
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RWTCSR_D_2: .word 0xA507
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RWTCNT_D: .word 0x5A00
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.align 2
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BBG_PMMR_A: .long 0xFF800010
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BBG_PMSR1_A: .long 0xFF800014
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BBG_PMSR2_A: .long 0xFF800018
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BBG_PMSR3_A: .long 0xFF80001C
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BBG_PMSR4_A: .long 0xFF800020
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BBG_PMSRG_A: .long 0xFF800024
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BBG_PMMR_D_PMSR1: .long 0xffffbffd
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BBG_PMSR1_D: .long 0x00004002
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BBG_PMMR_D_PMSR2: .long 0xfc21a7ff
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BBG_PMSR2_D: .long 0x03de5800
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BBG_PMMR_D_PMSR3: .long 0xfffffff8
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BBG_PMSR3_D: .long 0x00000007
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BBG_PMMR_D_PMSR4: .long 0xdffdfff9
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BBG_PMSR4_D: .long 0x20020006
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BBG_PMMR_D_PMSRG: .long 0xffffffff
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BBG_PMSRG_D: .long 0x00000000
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FRQCR_A: .long FRQCR
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DLLCSR_A: .long 0xffc40010
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FRQCR_D: .long 0x40233035
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DLLCSR_D: .long 0x00000000
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/* for DDR-SDRAM */
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MIM_U_A: .long MIM_1
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MIM_L_A: .long MIM_2
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SCR_U_A: .long SCR_1
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SCR_L_A: .long SCR_2
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STR_U_A: .long STR_1
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STR_L_A: .long STR_2
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SDR_U_A: .long SDR_1
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SDR_L_A: .long SDR_2
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EMRS_A: .long 0xFEC02000
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MRS1_A: .long 0xFEC00B08
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MRS2_A: .long 0xFEC00308
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MIM_U_D: .long 0x00004000
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MIM_L_D0: .long 0x03e80009
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MIM_L_D1: .long 0x03e80209
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SCR_L_D0: .long 0x3
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SCR_L_D1: .long 0x2
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SCR_L_D2: .long 0x2
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SCR_L_D3: .long 0x4
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SCR_L_D4: .long 0x4
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SCR_L_D5: .long 0x0
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STR_L_D: .long 0x000f0000
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SDR_L_D: .long 0x00000400
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EMRS_D: .long 0x0
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MRS1_D: .long 0x0
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MRS2_D: .long 0x0
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/* Cache Controller */
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CCR_A: .long CCR
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MMUCR_A: .long MMUCR
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RWTCNT_A: .long WTCNT
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CCR_D: .long 0x0000090b
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CCR_D_2: .long 0x00000103
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MMUCR_D: .long 0x00000004
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MSTPCR0_D: .long 0x00001001
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MSTPCR2_D: .long 0xffffffff
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/* local Bus State Controller */
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MMSELR_A: .long MMSELR
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BCR_A: .long BCR
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CS0BCR_A: .long CS0BCR
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CS1BCR_A: .long CS1BCR
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CS2BCR_A: .long CS2BCR
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CS4BCR_A: .long CS4BCR
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CS5BCR_A: .long CS5BCR
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CS6BCR_A: .long CS6BCR
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CS0WCR_A: .long CS0WCR
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CS1WCR_A: .long CS1WCR
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CS2WCR_A: .long CS2WCR
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CS4WCR_A: .long CS4WCR
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CS5WCR_A: .long CS5WCR
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CS6WCR_A: .long CS6WCR
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CS5PCR_A: .long CS5PCR
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CS6PCR_A: .long CS6PCR
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MMSELR_D: .long 0xA5A50003
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BCR_D: .long 0x00000000
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CS0BCR_D: .long 0x77777770
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CS1BCR_D: .long 0x77777670
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CS2BCR_D: .long 0x77777770
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CS4BCR_D: .long 0x77777770
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CS5BCR_D: .long 0x77777670
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CS6BCR_D: .long 0x77777770
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CS0WCR_D: .long 0x00020006
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CS1WCR_D: .long 0x00232304
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CS2WCR_D: .long 0x7777770F
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CS4WCR_D: .long 0x7777770F
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CS5WCR_D: .long 0x00101006
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CS6WCR_D: .long 0x77777703
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CS5PCR_D: .long 0x77000000
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CS6PCR_D: .long 0x77000000
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REPEAT0_R3: .long 0x00002000
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REPEAT0_R1: .long 0x0000200
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