mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-01 00:49:43 +00:00
e05e5de7fa
Move all the C runtime setup code from every start.S in arch/arm into arch/arm/lib/crt0.S. This covers the code sequence from setting up the initial stack to calling into board_init_r(). Also, rewrite the C runtime setup and make functions board_init_*() and relocate_code() behave according to normal C semantics (no jumping across the C stack any more, etc). Some SPL targets had to be touched because they use start.S explicitly or for some reason; the relevant maintainers and custodians are cc:ed. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
236 lines
6.3 KiB
C
236 lines
6.3 KiB
C
/*
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* Copyright (C) 2012 Altera Corporation <www.altera.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __CONFIG_H
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#define __CONFIG_H
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#include <asm/arch/socfpga_base_addrs.h>
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/*
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* High level configuration
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*/
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#define CONFIG_ARMV7
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#define CONFIG_L2_OFF
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#define CONFIG_SYS_DCACHE_OFF
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#undef CONFIG_USE_IRQ
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#define CONFIG_MISC_INIT_R
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#define CONFIG_SINGLE_BOOTLOADER
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#define CONFIG_SOCFPGA
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#define CONFIG_SYS_TEXT_BASE 0x08000040
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#define V_NS16550_CLK 1000000
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#define CONFIG_BAUDRATE 57600
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#define CONFIG_SYS_HZ 1000
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#define CONFIG_TIMER_CLOCK_KHZ 2400
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#define CONFIG_SYS_LOAD_ADDR 0x7fc0
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/* Console I/O Buffer Size */
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#define CONFIG_SYS_CBSIZE 256
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/* Monitor Command Prompt */
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#define CONFIG_SYS_PROMPT "SOCFPGA_CYCLONE5 # "
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#define CONFIG_SYS_PBSIZE (CONFIG_SYS_CBSIZE + \
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sizeof(CONFIG_SYS_PROMPT) + 16)
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/*
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* Display CPU and Board Info
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*/
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#define CONFIG_DISPLAY_CPUINFO
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#define CONFIG_DISPLAY_BOARDINFO
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/*
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* Enable early stage initialization at C environment
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*/
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#define CONFIG_BOARD_EARLY_INIT_F
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/* flat device tree */
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#define CONFIG_OF_LIBFDT
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/* skip updating the FDT blob */
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#define CONFIG_FDT_BLOB_SKIP_UPDATE
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/* Initial Memory map size for Linux, minus 4k alignment for DFT blob */
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#define CONFIG_SYS_BOOTMAPSZ ((256*1024*1024) - (4*1024))
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#define CONFIG_SPL_RAM_DEVICE
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#define CONFIG_SPL_STACK CONFIG_SYS_INIT_SP_ADDR
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#define CONFIG_SYS_SPL_MALLOC_START ((unsigned long) (&__malloc_start))
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#define CONFIG_SYS_SPL_MALLOC_SIZE (&__malloc_end - &__malloc_start)
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/*
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* Memory allocation (MALLOC)
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*/
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/* Room required on the stack for the environment data */
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#define CONFIG_ENV_SIZE 1024
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/* Size of DRAM reserved for malloc() use */
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#define CONFIG_SYS_MALLOC_LEN (CONFIG_ENV_SIZE + 128*1024)
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/* SP location before relocation, must use scratch RAM */
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#define CONFIG_SYS_INIT_RAM_ADDR 0xFFFF0000
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/* Reserving 0x100 space at back of scratch RAM for debug info */
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#define CONFIG_SYS_INIT_RAM_SIZE (0x10000 - 0x100)
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/* Stack pointer prior relocation, must situated at on-chip RAM */
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#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SYS_INIT_RAM_ADDR + \
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CONFIG_SYS_INIT_RAM_SIZE - \
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GENERATED_GBL_DATA_SIZE)
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/*
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* Command line configuration.
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*/
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#define CONFIG_SYS_NO_FLASH
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#include <config_cmd_default.h>
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/* FAT file system support */
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#define CONFIG_CMD_FAT
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/*
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* Misc
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*/
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#define CONFIG_DOS_PARTITION 1
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#ifdef CONFIG_SPL_BUILD
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#undef CONFIG_PARTITIONS
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#endif
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/*
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* Environment setup
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*/
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/* Delay before automatically booting the default image */
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#define CONFIG_BOOTDELAY 3
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/* Enable auto completion of commands using TAB */
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#define CONFIG_AUTO_COMPLETE
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/* use "hush" command parser */
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#define CONFIG_SYS_HUSH_PARSER
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#define CONFIG_SYS_PROMPT_HUSH_PS2 "> "
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#define CONFIG_CMD_RUN
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#define CONFIG_BOOTCOMMAND "run ramboot"
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/*
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* arguments passed to the bootm command. The value of
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* CONFIG_BOOTARGS goes into the environment value "bootargs".
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* Do note the value will overide also the chosen node in FDT blob.
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*/
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#define CONFIG_BOOTARGS "console=ttyS0,57600,mem=256M@0x0"
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#define CONFIG_EXTRA_ENV_SETTINGS \
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"verify=n\0" \
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"loadaddr= " __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
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"ramboot=setenv bootargs " CONFIG_BOOTARGS ";" \
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"bootm ${loadaddr} - ${fdt_addr}\0" \
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"bootimage=uImage\0" \
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"fdt_addr=100\0" \
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"fsloadcmd=ext2load\0" \
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"bootm ${loadaddr} - ${fdt_addr}\0" \
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"qspiroot=/dev/mtdblock0\0" \
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"qspirootfstype=jffs2\0" \
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"qspiboot=setenv bootargs " CONFIG_BOOTARGS \
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" root=${qspiroot} rw rootfstype=${qspirootfstype};"\
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"bootm ${loadaddr} - ${fdt_addr}\0"
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/* using environment setting for stdin, stdout, stderr */
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#define CONFIG_SYS_CONSOLE_IS_IN_ENV
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/* Enable the call to overwrite_console() */
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#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
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/* Enable overwrite of previous console environment settings */
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#define CONFIG_SYS_CONSOLE_ENV_OVERWRITE
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/* max number of command args */
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#define CONFIG_SYS_MAXARGS 16
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/*
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* Hardware drivers
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*/
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/*
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* SDRAM Memory Map
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*/
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/* We have 1 bank of DRAM */
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#define CONFIG_NR_DRAM_BANKS 1
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/* SDRAM Bank #1 */
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#define CONFIG_SYS_SDRAM_BASE 0x00000000
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/* SDRAM memory size */
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#define PHYS_SDRAM_1_SIZE 0x80000000
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#define PHYS_SDRAM_1 CONFIG_SYS_SDRAM_BASE
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#define CONFIG_SYS_MEMTEST_START 0x00000000
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#define CONFIG_SYS_MEMTEST_END PHYS_SDRAM_1_SIZE
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/*
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* NS16550 Configuration
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*/
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#define UART0_BASE SOCFPGA_UART0_ADDRESS
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#define CONFIG_SYS_NS16550
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#define CONFIG_SYS_NS16550_SERIAL
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#define CONFIG_SYS_NS16550_REG_SIZE -4
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#define CONFIG_SYS_NS16550_CLK V_NS16550_CLK
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#define CONFIG_CONS_INDEX 1
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#define CONFIG_SYS_NS16550_COM1 UART0_BASE
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#define CONFIG_SYS_BAUDRATE_TABLE {4800, 9600, 19200, 38400, 57600, 115200}
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/*
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* FLASH
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*/
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#define CONFIG_SYS_NO_FLASH
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/*
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* L4 OSC1 Timer 0
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*/
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/* This timer use eosc1 where the clock frequency is fixed
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* throughout any condition */
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#define CONFIG_SYS_TIMERBASE SOCFPGA_OSC1TIMER0_ADDRESS
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/* reload value when timer count to zero */
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#define TIMER_LOAD_VAL 0xFFFFFFFF
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#define CONFIG_ENV_IS_NOWHERE
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/*
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* SPL "Second Program Loader" aka Initial Software
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*/
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/* Enable building of SPL globally */
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#define CONFIG_SPL
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#define CONFIG_SPL_FRAMEWORK
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/* TEXT_BASE for linking the SPL binary */
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#define CONFIG_SPL_TEXT_BASE 0xFFFF0000
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/* Stack size for SPL */
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#define CONFIG_SPL_STACK_SIZE (4 * 1024)
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/* MALLOC size for SPL */
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#define CONFIG_SPL_MALLOC_SIZE (5 * 1024)
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#define CONFIG_SPL_SERIAL_SUPPORT
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#define CONFIG_SPL_BOARD_INIT
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#define CHUNKSZ_CRC32 (1 * 1024)
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#define CONFIG_CRC32_VERIFY
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/* Linker script for SPL */
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#define CONFIG_SPL_LDSCRIPT "arch/arm/cpu/armv7/socfpga/u-boot-spl.lds"
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/* Support for common/libcommon.o in SPL binary */
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#define CONFIG_SPL_LIBCOMMON_SUPPORT
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/* Support for lib/libgeneric.o in SPL binary */
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#define CONFIG_SPL_LIBGENERIC_SUPPORT
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#endif /* __CONFIG_H */
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