spl: fit: support for booting a LZMA-compressed U-boot binary
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>
diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
index 0d28701..e567fe2 100644
--- a/common/spl/spl_fit.c
+++ b/common/spl/spl_fit.c
@@ -282,7 +282,8 @@
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 @@
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);
}
diff --git a/include/spl.h b/include/spl.h
index 320ed94..f62f385 100644
--- a/include/spl.h
+++ b/include/spl.h
@@ -905,6 +905,6 @@
*/
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