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-/*
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- * Memory Setup stuff - taken from blob memsetup.S
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- *
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- * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) and
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- * Jan-Derk Bakker (J.D.Bakker@its.tudelft.nl)
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- *
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- * Modified for the at91rm9200dk board by
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- * (C) Copyright 2004
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- * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
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- *
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- * See file CREDITS for list of people who contributed to this
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- * project.
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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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-
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-#include <config.h>
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-#include <version.h>
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-
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-#ifdef CONFIG_BOOTBINFUNC
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-/*
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- * some parameters for the board
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- *
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- * This is based on rm9200dk.cfg for the BDI2000 from ABATRON which in
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- * turn is based on the boot.bin code from ATMEL
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- *
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- */
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-
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-/* flash */
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-#define MC_PUIA 0xFFFFFF10
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-#define CONFIG_SYS_MC_PUIA_VAL 0x00000000
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-#define MC_PUP 0xFFFFFF50
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-#define CONFIG_SYS_MC_PUP_VAL 0x00000000
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-#define MC_PUER 0xFFFFFF54
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-#define CONFIG_SYS_MC_PUER_VAL 0x00000000
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-#define MC_ASR 0xFFFFFF04
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-#define CONFIG_SYS_MC_ASR_VAL 0x00000000
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-#define MC_AASR 0xFFFFFF08
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-#define CONFIG_SYS_MC_AASR_VAL 0x00000000
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-#define EBI_CFGR 0xFFFFFF64
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-#define CONFIG_SYS_EBI_CFGR_VAL 0x00000000
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-#define SMC_CSR0 0xFFFFFF70
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-#define CONFIG_SYS_SMC_CSR0_VAL 0x00003284 /* 16bit, 2 TDF, 4 WS */
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-
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-/* clocks */
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-#define PLLAR 0xFFFFFC28
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-#define CONFIG_SYS_PLLAR_VAL 0x20263E04 /* 179.712000 MHz for PCK */
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-#define PLLBR 0xFFFFFC2C
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-#define CONFIG_SYS_PLLBR_VAL 0x10483E0E /* 48.054857 MHz (divider by 2 for USB) */
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-#define MCKR 0xFFFFFC30
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-/* PCK/3 = MCK Master Clock = 59.904000MHz from PLLA */
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-#define CONFIG_SYS_MCKR_VAL 0x00000202
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-
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-/* sdram */
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-#define PIOC_ASR 0xFFFFF870
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-#define CONFIG_SYS_PIOC_ASR_VAL 0xFFFF0000 /* Configure PIOC as Perip (D16/D31) */
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-#define PIOC_BSR 0xFFFFF874
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-#define CONFIG_SYS_PIOC_BSR_VAL 0x00000000
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-#define PIOC_PDR 0xFFFFF804
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-#define CONFIG_SYS_PIOC_PDR_VAL 0xFFFF0000
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-#define EBI_CSA 0xFFFFFF60
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-#define CONFIG_SYS_EBI_CSA_VAL 0x00000002 /* CS1=CONFIG_SYS_SDRAM */
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-#define SDRC_CR 0xFFFFFF98
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-#define CONFIG_SYS_SDRC_CR_VAL 0x2188c155 /* set up the CONFIG_SYS_SDRAM */
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-#define CONFIG_SYS_SDRAM 0x20000000 /* address of the CONFIG_SYS_SDRAM */
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-#define CONFIG_SYS_SDRAM1 0x20000080 /* address of the CONFIG_SYS_SDRAM */
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-#define CONFIG_SYS_SDRAM_VAL 0x00000000 /* value written to CONFIG_SYS_SDRAM */
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-#define SDRC_MR 0xFFFFFF90
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-#define CONFIG_SYS_SDRC_MR_VAL 0x00000002 /* Precharge All */
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-#define CONFIG_SYS_SDRC_MR_VAL1 0x00000004 /* refresh */
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-#define CONFIG_SYS_SDRC_MR_VAL2 0x00000003 /* Load Mode Register */
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-#define CONFIG_SYS_SDRC_MR_VAL3 0x00000000 /* Normal Mode */
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-#define SDRC_TR 0xFFFFFF94
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-#define CONFIG_SYS_SDRC_TR_VAL 0x000002E0 /* Write refresh rate */
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-
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-_TEXT_BASE:
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- .word TEXT_BASE
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-
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-.globl lowlevelinit
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-lowlevelinit:
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- /* memory control configuration */
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- /* this isn't very elegant, but what the heck */
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- ldr r0, =SMRDATA
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- ldr r1, _TEXT_BASE
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- sub r0, r0, r1
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- add r2, r0, #80
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-0:
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- /* the address */
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- ldr r1, [r0], #4
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- /* the value */
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- ldr r3, [r0], #4
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- str r3, [r1]
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- cmp r2, r0
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- bne 0b
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- /* delay - this is all done by guess */
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- ldr r0, =0x00010000
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-1:
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- subs r0, r0, #1
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- bhi 1b
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- ldr r0, =SMRDATA1
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- ldr r1, _TEXT_BASE
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- sub r0, r0, r1
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- add r2, r0, #176
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-2:
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- /* the address */
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- ldr r1, [r0], #4
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- /* the value */
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- ldr r3, [r0], #4
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- str r3, [r1]
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- cmp r2, r0
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- bne 2b
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-
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- /* everything is fine now */
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- mov pc, lr
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-
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- .ltorg
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-
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-SMRDATA:
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- .word MC_PUIA
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- .word CONFIG_SYS_MC_PUIA_VAL
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- .word MC_PUP
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- .word CONFIG_SYS_MC_PUP_VAL
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- .word MC_PUER
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- .word CONFIG_SYS_MC_PUER_VAL
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- .word MC_ASR
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- .word CONFIG_SYS_MC_ASR_VAL
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- .word MC_AASR
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- .word CONFIG_SYS_MC_AASR_VAL
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- .word EBI_CFGR
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- .word CONFIG_SYS_EBI_CFGR_VAL
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- .word SMC_CSR0
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- .word CONFIG_SYS_SMC_CSR0_VAL
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- .word PLLAR
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- .word CONFIG_SYS_PLLAR_VAL
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- .word PLLBR
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- .word CONFIG_SYS_PLLBR_VAL
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- .word MCKR
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- .word CONFIG_SYS_MCKR_VAL
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- /* SMRDATA is 80 bytes long */
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- /* here there's a delay of 100 */
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-SMRDATA1:
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- .word PIOC_ASR
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- .word CONFIG_SYS_PIOC_ASR_VAL
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- .word PIOC_BSR
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- .word CONFIG_SYS_PIOC_BSR_VAL
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- .word PIOC_PDR
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- .word CONFIG_SYS_PIOC_PDR_VAL
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- .word EBI_CSA
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- .word CONFIG_SYS_EBI_CSA_VAL
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- .word SDRC_CR
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- .word CONFIG_SYS_SDRC_CR_VAL
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- .word SDRC_MR
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- .word CONFIG_SYS_SDRC_MR_VAL
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word SDRC_MR
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- .word CONFIG_SYS_SDRC_MR_VAL1
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word SDRC_MR
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- .word CONFIG_SYS_SDRC_MR_VAL2
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- .word CONFIG_SYS_SDRAM1
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- .word CONFIG_SYS_SDRAM_VAL
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- .word SDRC_TR
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- .word CONFIG_SYS_SDRC_TR_VAL
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- .word SDRC_MR
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- .word CONFIG_SYS_SDRC_MR_VAL3
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- .word CONFIG_SYS_SDRAM
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- .word CONFIG_SYS_SDRAM_VAL
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- /* SMRDATA1 is 176 bytes long */
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-#endif /* CONFIG_BOOTBINFUNC */
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