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

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

image_decomp() function, will decompress the LZMA 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: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Manoj Sai 2023-09-18 00:56:26 +05:30 committed by Kever Yang
parent ce6ab56401
commit a1b7fd7f0a
2 changed files with 13 additions and 2 deletions
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13
common/spl/spl_fit.c
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@ -282,7 +282,8 @@ static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
return 0;
}
if (spl_decompression_enabled() && image_comp == IH_COMP_GZIP)
if (spl_decompression_enabled() &&
(image_comp == IH_COMP_GZIP || image_comp == IH_COMP_LZMA))
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);
@ -330,6 +331,16 @@ static int spl_load_fit_image(struct spl_load_info *info, ulong sector,
return -EIO;
}
length = size;
} else if (IS_ENABLED(CONFIG_SPL_LZMA) && image_comp == IH_COMP_LZMA) {
size = CONFIG_SYS_BOOTM_LEN;
ulong loadEnd;
if (image_decomp(IH_COMP_LZMA, CONFIG_SYS_LOAD_ADDR, 0, 0,
load_ptr, src, length, size, &loadEnd)) {
puts("Uncompressing error\n");
return -EIO;
}
length = loadEnd - CONFIG_SYS_LOAD_ADDR;
} else {
memcpy(load_ptr, src, length);
}

2
include/spl.h
View file

@ -905,6 +905,6 @@ void spl_save_restore_data(void);
*/
static inline bool spl_decompression_enabled(void)
{
return IS_ENABLED(CONFIG_SPL_GZIP);
return IS_ENABLED(CONFIG_SPL_GZIP) || IS_ENABLED(CONFIG_SPL_LZMA);
}
#endif