Move this documentation over to .rst format.
Signed-off-by: Simon Glass sjg@chromium.org ---
(no changes since v1)
doc/develop/index.rst | 1 + doc/{README.SPL => develop/spl.rst} | 36 +++++++++++++++-------------- 2 files changed, 20 insertions(+), 17 deletions(-) rename doc/{README.SPL => develop/spl.rst} (86%)
diff --git a/doc/develop/index.rst b/doc/develop/index.rst index 93ebfa485f..a79dd9d4fb 100644 --- a/doc/develop/index.rst +++ b/doc/develop/index.rst @@ -23,6 +23,7 @@ Implementation menus printf smbios + spl uefi/index version
diff --git a/doc/README.SPL b/doc/develop/spl.rst similarity index 86% rename from doc/README.SPL rename to doc/develop/spl.rst index 011fd42537..4d6f394bed 100644 --- a/doc/README.SPL +++ b/doc/develop/spl.rst @@ -20,19 +20,19 @@ u-boot-spl.map. A config option named CONFIG_SPL_BUILD is enabled by Kconfig for SPL. Source files can therefore be compiled for SPL with different settings.
-For example: +For example::
-ifeq ($(CONFIG_SPL_BUILD),y) -obj-y += board_spl.o -else -obj-y += board.o -endif + ifeq ($(CONFIG_SPL_BUILD),y) + obj-y += board_spl.o + else + obj-y += board.o + endif
-obj-$(CONFIG_SPL_BUILD) += foo.o + obj-$(CONFIG_SPL_BUILD) += foo.o
-#ifdef CONFIG_SPL_BUILD - foo(); -#endif + #ifdef CONFIG_SPL_BUILD + foo(); + #endif
The building of SPL images can be enabled by CONFIG_SPL option in Kconfig. @@ -71,11 +71,13 @@ Device tree The U-Boot device tree is filtered by the fdtgrep tools during the build process to generate a much smaller device tree used in SPL (spl/u-boot-spl.dtb) with: + - the mandatory nodes (/alias, /chosen, /config) - the nodes with one pre-relocation property: 'u-boot,dm-pre-reloc' or 'u-boot,dm-spl'
fdtgrep is also used to remove: + - the properties defined in CONFIG_OF_SPL_REMOVE_PROPS - all the pre-relocation properties ('u-boot,dm-pre-reloc', 'u-boot,dm-spl' and 'u-boot,dm-tpl') @@ -98,14 +100,14 @@ stack usage at various points in run sequence of SPL. The -fstack-usage option to gcc will produce '.su' files (such as arch/arm/cpu/armv7/syslib.su) that will give stack usage information and cflow can construct program flow.
-Must have gcc 4.6 or later, which supports -fstack-usage +Must have gcc 4.6 or later, which supports -fstack-usage:
-1) Build normally -2) Perform the following shell command to generate a list of C files used in -SPL: -$ find spl -name '*.su' | sed -e 's:^spl/::' -e 's:[.]su$:.c:' > used-spl.list -3) Execute cflow: -$ cflow --main=board_init_r `cat used-spl.list` 2>&1 | $PAGER +#. Build normally +#. Perform the following shell command to generate a list of C files used in + SPL: +#. `find spl -name '*.su' | sed -e 's:^spl/::' -e 's:[.]su$:.c:' > used-spl.list` +#. Execute cflow: + `$ cflow --main=board_init_r $(cat used-spl.list) 2>&1 | $PAGER`
cflow will spit out a number of warnings as it does not parse the config files and picks functions based on #ifdef. Parsing the '.i'