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Makefile: Change CONFIG_SPL_PAD_TO to image offset

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Change CONFIG_SPL_PAD_TO from a link address to an image offset since this is
more handy and closer to the purpose of this config.

Automatically define CONFIG_SPL_PAD_TO to CONFIG_SPL_MAX_SIZE (or 0 without
CONFIG_SPL_MAX_SIZE).

Test that CONFIG_SPL_PAD_TO >= CONFIG_SPL_MAX_SIZE if CONFIG_SPL_PAD_TO is
non-zero.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
This commit is contained in:
Benoît Thébaudeau 2013-04-11 09:35:49 +00:00 committed by Albert ARIBAUD
parent 2979b26323
commit 6113d3f27c
5 changed files with 25 additions and 7 deletions
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5
Makefile
View file

@ -486,9 +486,8 @@ $(obj)u-boot.dis: $(obj)u-boot
$(obj)u-boot-with-spl.bin: $(obj)spl/u-boot-spl.bin $(obj)u-boot.bin
$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(or $(CONFIG_SPL_PAD_TO),0) \
-O binary $(obj)spl/u-boot-spl \
$(obj)spl/u-boot-spl-pad.bin
$(OBJCOPY) ${OBJCFLAGS} --pad-to=$(CONFIG_SPL_PAD_TO) \
-I binary -O binary $< $(obj)spl/u-boot-spl-pad.bin
cat $(obj)spl/u-boot-spl-pad.bin $(obj)u-boot.bin > $@
rm $(obj)spl/u-boot-spl-pad.bin

7
README
View file

@ -2908,8 +2908,11 @@ FIT uImage format:
Support for lib/libgeneric.o in SPL binary
CONFIG_SPL_PAD_TO
Linker address to which the SPL should be padded before
appending the SPL payload.
Image offset to which the SPL should be padded before appending
the SPL payload. By default, this is defined as
CONFIG_SPL_MAX_SIZE, or 0 if CONFIG_SPL_MAX_SIZE is undefined.
CONFIG_SPL_PAD_TO must be either 0, meaning to append the SPL
payload without any padding, or >= CONFIG_SPL_MAX_SIZE.
CONFIG_SPL_TARGET
Final target image containing SPL and payload. Some SPLs

16
include/config_fallbacks.h
View file

@ -9,6 +9,22 @@
#ifndef __CONFIG_FALLBACKS_H
#define __CONFIG_FALLBACKS_H
#ifdef CONFIG_SPL
#ifdef CONFIG_SPL_PAD_TO
#ifdef CONFIG_SPL_MAX_SIZE
#if CONFIG_SPL_PAD_TO && CONFIG_SPL_PAD_TO < CONFIG_SPL_MAX_SIZE
#error CONFIG_SPL_PAD_TO < CONFIG_SPL_MAX_SIZE
#endif
#endif
#else
#ifdef CONFIG_SPL_MAX_SIZE
#define CONFIG_SPL_PAD_TO CONFIG_SPL_MAX_SIZE
#else
#define CONFIG_SPL_PAD_TO 0
#endif
#endif
#endif
#ifndef CONFIG_SYS_BAUDRATE_TABLE
#define CONFIG_SYS_BAUDRATE_TABLE { 9600, 19200, 38400, 57600, 115200 }
#endif

2
include/configs/MPC8313ERDB.h
View file

@ -52,7 +52,7 @@
#define CONFIG_SYS_TEXT_BASE 0x00100000 /* CONFIG_SYS_NAND_U_BOOT_DST */
#define CONFIG_SYS_TEXT_BASE_SPL 0xfff00000
#define CONFIG_SPL_MAX_SIZE (4 * 1024)
#define CONFIG_SPL_PAD_TO 0xfff04000
#define CONFIG_SPL_PAD_TO 0x4000
#define CONFIG_SYS_NAND_U_BOOT_SIZE (512 << 10)
#define CONFIG_SYS_NAND_U_BOOT_DST 0x00100000

2
include/configs/p1_p2_rdb_pc.h
View file

@ -164,7 +164,7 @@
#define CONFIG_SPL_TARGET "u-boot-with-spl.bin"
#define CONFIG_SPL_TEXT_BASE 0xfffff000
#define CONFIG_SPL_MAX_SIZE (4 * 1024)
#define CONFIG_SPL_MAX_SIZE 4096
#ifdef CONFIG_SYS_INIT_L2_ADDR
/* We multiply CONFIG_SPL_MAX_SIZE by two to leave some room for BSS. */