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spl, nand: add option to boot raw u-boot.bin image only

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enable to boot only a raw u-boot.bin image from nand with the
CONFIG_SPL_NAND_RAW_ONLY define. This option saves space on
boards where spl space is low.

Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Andreas Bießmann <andreas.devel@googlemail.com>
Reviewed-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
This commit is contained in:
Heiko Schocher 2014-10-31 08:31:00 +01:00 committed by Tom Rini
parent bd1bb3c6a7
commit 0c3117b1f7
4 changed files with 28 additions and 5 deletions
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4
README
View File

@ -3605,6 +3605,10 @@ FIT uImage format:
Support for the MTD subsystem within SPL. Useful for
environment on NAND support within SPL.
CONFIG_SPL_NAND_RAW_ONLY
Support to boot only raw u-boot.bin images. Use this only
if you need to save space.
CONFIG_SPL_MPC8XXX_INIT_DDR_SUPPORT
Set for the SPL on PPC mpc8xxx targets, support for
drivers/ddr/fsl/libddr.o in SPL binary.

15
common/spl/spl.c
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@ -62,6 +62,15 @@ __weak void spl_board_prepare_for_linux(void)
/* Nothing to do! */
}
void spl_set_header_raw_uboot(void)
{
spl_image.size = CONFIG_SYS_MONITOR_LEN;
spl_image.entry_point = CONFIG_SYS_UBOOT_START;
spl_image.load_addr = CONFIG_SYS_TEXT_BASE;
spl_image.os = IH_OS_U_BOOT;
spl_image.name = "U-Boot";
}
void spl_parse_image_header(const struct image_header *header)
{
u32 header_size = sizeof(struct image_header);
@ -93,11 +102,7 @@ void spl_parse_image_header(const struct image_header *header)
/* Signature not found - assume u-boot.bin */
debug("mkimage signature not found - ih_magic = %x\n",
header->ih_magic);
spl_image.size = CONFIG_SYS_MONITOR_LEN;
spl_image.entry_point = CONFIG_SYS_UBOOT_START;
spl_image.load_addr = CONFIG_SYS_TEXT_BASE;
spl_image.os = IH_OS_U_BOOT;
spl_image.name = "U-Boot";
spl_set_header_raw_uboot();
}
}

13
common/spl/spl_nand.c
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@ -10,6 +10,18 @@
#include <asm/io.h>
#include <nand.h>
#if defined(CONFIG_SPL_NAND_RAW_ONLY)
void spl_nand_load_image(void)
{
nand_init();
nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
CONFIG_SYS_NAND_U_BOOT_SIZE,
(void *)CONFIG_SYS_NAND_U_BOOT_DST);
spl_set_header_raw_uboot();
nand_deselect();
}
#else
void spl_nand_load_image(void)
{
struct image_header *header;
@ -82,3 +94,4 @@ void spl_nand_load_image(void)
spl_image.size, (void *)spl_image.load_addr);
nand_deselect();
}
#endif

1
include/spl.h
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@ -35,6 +35,7 @@ extern struct spl_image_info spl_image;
void preloader_console_init(void);
u32 spl_boot_device(void);
u32 spl_boot_mode(void);
void spl_set_header_raw_uboot(void);
void spl_parse_image_header(const struct image_header *header);
void spl_board_prepare_for_linux(void);
void __noreturn jump_to_image_linux(void *arg);