[U-Boot] [PATCH 2/2] lib: fdt: Allow LZO and GZIP DT compression in U-Boot
Marek Vasut
marek.vasut at gmail.com
Wed Mar 13 21:08:20 UTC 2019
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 at gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu at nigauri.org>
Cc: Simon Glass <sjg at chromium.org>
Cc: Tom Rini <trini at konsulko.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas at gmail.com>
---
Makefile | 18 +++++++++++--
dts/Kconfig | 57 +++++++++++++++++++++++++++++++++++++++
include/config_defaults.h | 3 ---
lib/Kconfig | 13 +++++++++
lib/fdtdec.c | 2 +-
5 files changed, 87 insertions(+), 6 deletions(-)
diff --git a/Makefile b/Makefile
index 26db4e7b59..ba7a9eb4f7 100644
--- a/Makefile
+++ b/Makefile
@@ -1013,6 +1013,20 @@ quiet_cmd_copy = COPY $@
ifeq ($(CONFIG_MULTI_DTB_FIT),y)
+ifeq ($(CONFIG_MULTI_DTB_FIT_LZO),y)
+FINAL_DTB_CONTAINER = fit-dtb.blob.lzo
+else ifeq ($(CONFIG_MULTI_DTB_FIT_GZIP),y)
+FINAL_DTB_CONTAINER = fit-dtb.blob.gz
+else
+FINAL_DTB_CONTAINER = fit-dtb.blob
+endif
+
+fit-dtb.blob.gz: fit-dtb.blob
+ @gzip -kf9 $< > $@
+
+fit-dtb.blob.lzo: fit-dtb.blob
+ @lzop -f9 $< > $@
+
fit-dtb.blob: dts/dt.dtb FORCE
$(call if_changed,mkimage)
@@ -1020,13 +1034,13 @@ MKIMAGEFLAGS_fit-dtb.blob = -f auto -A $(ARCH) -T firmware -C none -O u-boot \
-a 0 -e 0 -E \
$(patsubst %,-b arch/$(ARCH)/dts/%.dtb,$(subst ",,$(CONFIG_OF_LIST))) -d /dev/null
-u-boot-fit-dtb.bin: u-boot-nodtb.bin fit-dtb.blob
+u-boot-fit-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER)
$(call if_changed,cat)
u-boot.bin: u-boot-fit-dtb.bin FORCE
$(call if_changed,copy)
else ifeq ($(CONFIG_OF_SEPARATE),y)
-u-boot-dtb.bin: u-boot-nodtb.bin dts/dt.dtb FORCE
+u-boot-dtb.bin: u-boot-nodtb.bin $(FINAL_DTB_CONTAINER) FORCE
$(call if_changed,cat)
u-boot.bin: u-boot-dtb.bin FORCE
diff --git a/dts/Kconfig b/dts/Kconfig
index 3e85914d11..a5f30c8fd0 100644
--- a/dts/Kconfig
+++ b/dts/Kconfig
@@ -130,6 +130,63 @@ config OF_LIST
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"
diff --git a/include/config_defaults.h b/include/config_defaults.h
index 7ef928bbe1..4ed09683b6 100644
--- a/include/config_defaults.h
+++ b/include/config_defaults.h
@@ -16,7 +16,4 @@
#define CONFIG_BOOTM_RTEMS 1
#define CONFIG_BOOTM_VXWORKS 1
-#define CONFIG_GZIP 1
-#define CONFIG_ZLIB 1
-
#endif
diff --git a/lib/Kconfig b/lib/Kconfig
index 366d164cd7..8fe5d85a05 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -301,6 +301,19 @@ config LZO
help
This enables support for LZO compression algorithm.r
+config GZIP
+ bool "Enable gzip decompression support for SPL build"
+ select ZLIB
+ default y
+ help
+ This enables support for GZIP compression algorithm.
+
+config ZLIB
+ bool
+ default y
+ help
+ This enables ZLIB compression lib.
+
config SPL_LZ4
bool "Enable LZ4 decompression support in SPL"
help
diff --git a/lib/fdtdec.c b/lib/fdtdec.c
index d5e8b5a420..a51dc5e986 100644
--- a/lib/fdtdec.c
+++ b/lib/fdtdec.c
@@ -1182,7 +1182,7 @@ int fdtdec_setup_memory_banksize(void)
CONFIG_IS_ENABLED(MULTI_DTB_FIT_LZO)
static int uncompress_blob(const void *src, ulong sz_src, void **dstp)
{
- size_t sz_out = CONFIG_SPL_MULTI_DTB_FIT_UNCOMPRESS_SZ;
+ size_t sz_out = CONFIG_VAL(MULTI_DTB_FIT_UNCOMPRESS_SZ);
bool gzip = 0, lzo = 0;
ulong sz_in = sz_src;
void *dst;
--
2.20.1
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