lib: fdt: Allow LZO and GZIP DT compression in U-Boot
Add required Kconfig symbols, Makefile bits and macro fixes in a
few places to support LZO and DT compression in U-Boot. This can
save a lot of space with multi-DTB fitImages.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
diff --git a/dts/Kconfig b/dts/Kconfig
index 3e85914..a5f30c8 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -130,6 +130,63 @@
device tree files (without the directory or .dtb suffix)
separated by <space>.
+choice
+ prompt "SPL OF LIST compression"
+ depends on MULTI_DTB_FIT
+ default MULTI_DTB_FIT_NO_COMPRESSION
+
+config MULTI_DTB_FIT_LZO
+ bool "LZO"
+ depends on SYS_MALLOC_F
+ select LZO
+ help
+ Compress the FIT image containing the DTBs available for the SPL
+ using LZO compression. (requires lzop on host).
+
+config MULTI_DTB_FIT_GZIP
+ bool "GZIP"
+ depends on SYS_MALLOC_F
+ select GZIP
+ help
+ Compress the FIT image containing the DTBs available for the SPL
+ using GZIP compression. (requires gzip on host)
+
+config MULTI_DTB_FIT_NO_COMPRESSION
+ bool "No compression"
+ help
+ Do not compress the FIT image containing the DTBs available for the SPL.
+ Use this options only if LZO is not available and the DTBs are very small.
+endchoice
+
+choice
+ prompt "Location of uncompressed DTBs"
+ depends on (MULTI_DTB_FIT_GZIP || MULTI_DTB_FIT_LZO)
+ default MULTI_DTB_FIT_DYN_ALLOC if SYS_MALLOC_F
+
+config MULTI_DTB_FIT_DYN_ALLOC
+ bool "Dynamically allocate the memory"
+ depends on SYS_MALLOC_F
+
+config MULTI_DTB_FIT_USER_DEFINED_AREA
+ bool "User-defined location"
+endchoice
+
+config MULTI_DTB_FIT_UNCOMPRESS_SZ
+ hex "Size of memory reserved to uncompress the DTBs"
+ depends on (MULTI_DTB_FIT_GZIP || MULTI_DTB_FIT_LZO)
+ default 0x8000
+ help
+ This is the size of this area where the DTBs are uncompressed.
+ If this area is dynamically allocated, make sure that
+ SYS_MALLOC_F_LEN is big enough to contain it.
+
+config MULTI_DTB_FIT_USER_DEF_ADDR
+ hex "Address of memory where dtbs are uncompressed"
+ depends on MULTI_DTB_FIT_USER_DEFINED_AREA
+ help
+ the FIT image containing the DTBs is uncompressed in an area defined
+ at compilation time. This is the address of this area. It must be
+ aligned on 2-byte boundary.
config DTB_RESELECT
bool "Support swapping dtbs at a later point in boot"