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spl: fit: support for booting a GZIP-compressed U-boot binary

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If GZIP Compression support is enabled, GZIP compressed U-Boot binary
will be at a specified RAM location which is defined at
CONFIG_SYS_LOAD_ADDR and will be assign it as the source address.

gunzip function in spl_load_fit_image ,will decompress the GZIP
compressed U-Boot binary which is placed at
source address(CONFIG_SYS_LOAD_ADDR)  to the default
CONFIG_SYS_TEXT_BASE location.

spl_load_fit_image function will load the decompressed U-Boot
binary, which is placed at the CONFIG_SYS_TEXT_BASE location.

Signed-off-by: Manoj Sai <abbaraju.manojsai@amarulasolutions.com>
Signed-off-by: Suniel Mahesh <sunil@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Manoj Sai 2023-09-18 00:56:25 +05:30 committed by Kever Yang
parent 9841fe2119
commit ce6ab56401
2 changed files with 16 additions and 3 deletions
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7
common/spl/spl_fit.c
View file

@ -240,14 +240,14 @@ static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
bool external_data = false;
if (IS_ENABLED(CONFIG_SPL_FPGA) ||
(IS_ENABLED(CONFIG_SPL_OS_BOOT) && IS_ENABLED(CONFIG_SPL_GZIP))) {
(IS_ENABLED(CONFIG_SPL_OS_BOOT) && spl_decompression_enabled())) {
if (fit_image_get_type(fit, node, &type))
puts("Cannot get image type.\n");
else
debug("%s ", genimg_get_type_name(type));
}
if (IS_ENABLED(CONFIG_SPL_GZIP)) {
if (spl_decompression_enabled()) {
fit_image_get_comp(fit, node, &image_comp);
debug("%s ", genimg_get_comp_name(image_comp));
}
@ -282,6 +282,9 @@ static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
return 0;
}
if (spl_decompression_enabled() && image_comp == IH_COMP_GZIP)
src_ptr = map_sysmem(ALIGN(CONFIG_SYS_LOAD_ADDR, ARCH_DMA_MINALIGN), len);
else
src_ptr = map_sysmem(ALIGN(load_addr, ARCH_DMA_MINALIGN), len);
length = len;

10
include/spl.h
View file

@ -897,4 +897,14 @@ struct legacy_img_hdr *spl_get_load_buffer(ssize_t offset, size_t size);
void board_boot_order(u32 *spl_boot_list);
void spl_save_restore_data(void);
/*
* spl_decompression_enabled() - check decompression support is enabled for SPL build
*
* Returns true if decompression support is enabled, else False
*/
static inline bool spl_decompression_enabled(void)
{
return IS_ENABLED(CONFIG_SPL_GZIP);
}
#endif