Define a new type of SPL that is not tied to any particular media. - Create a top level directory 'spl' that has a structure similar to the existing 'nand_spl' - Make necessary changes to top-level Makefile to build such an spl
Rationale for this approach: - There may be SPLs(like the OMAP x-loader) that support booting from multiple media. - Also, there is no harm in keeping SPLs specific to a particular media also under this directory. In fact it makes sense to merge all the different spl directories into this one.
Signed-off-by: Aneesh V aneesh@ti.com --- Makefile | 11 +++++++++++ arch/arm/include/asm/global_data.h | 5 +++++ 2 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/Makefile b/Makefile index dc2e3d8..21e51c8 100644 --- a/Makefile +++ b/Makefile @@ -293,6 +293,11 @@ NAND_SPL = nand_spl U_BOOT_NAND = $(obj)u-boot-nand.bin endif
+ifeq ($(CONFIG_SPL),y) +.PHONEY : SPL +ALL += SPL +endif + ifeq ($(CONFIG_ONENAND_U_BOOT),y) ONENAND_IPL = onenand_ipl U_BOOT_ONENAND = $(obj)u-boot-onenand.bin @@ -402,6 +407,9 @@ $(LDSCRIPT): depend $(obj)u-boot.lds: $(LDSCRIPT) $(CPP) $(CPPFLAGS) $(LDPPFLAGS) -ansi -D__ASSEMBLY__ -P - <$^ >$@
+SPL :$(TIMESTAMP_FILE) $(VERSION_FILE) depend tools + $(MAKE) -C spl/board/$(BOARDDIR) all + $(NAND_SPL): $(TIMESTAMP_FILE) $(VERSION_FILE) depend $(MAKE) -C nand_spl/board/$(BOARDDIR) all
@@ -1138,6 +1146,7 @@ clean: @rm -f $(obj)include/bmp_logo.h @rm -f $(obj)lib/asm-offsets.s @rm -f $(obj)nand_spl/{u-boot.lds,u-boot-spl,u-boot-spl.map,System.map} + @rm -f $(obj)spl/{u-boot-spl-generated.lds,u-boot-spl,u-boot-spl.map} @rm -f $(obj)onenand_ipl/onenand-{ipl,ipl.bin,ipl.map} @rm -f $(ONENAND_BIN) @rm -f $(obj)onenand_ipl/u-boot.lds @@ -1157,12 +1166,14 @@ clobber: clean @rm -f $(obj)u-boot $(obj)u-boot.map $(obj)u-boot.hex $(ALL) @rm -f $(obj)u-boot.kwb @rm -f $(obj)u-boot.imx + @rm -f $(obj)MLO @rm -f $(obj)tools/{env/crc32.c,inca-swap-bytes} @rm -f $(obj)arch/powerpc/cpu/mpc824x/bedbug_603e.c @rm -fr $(obj)include/asm/proc $(obj)include/asm/arch $(obj)include/asm @rm -fr $(obj)include/generated @[ ! -d $(obj)nand_spl ] || find $(obj)nand_spl -name "*" -type l -print | xargs rm -f @[ ! -d $(obj)onenand_ipl ] || find $(obj)onenand_ipl -name "*" -type l -print | xargs rm -f + @[ ! -d $(obj)spl ] || find $(obj)spl -name "*" -type l -print | xargs rm -f
ifeq ($(OBJTREE),$(SRCTREE)) mrproper \ diff --git a/arch/arm/include/asm/global_data.h b/arch/arm/include/asm/global_data.h index 2a84d27..2ce020e 100644 --- a/arch/arm/include/asm/global_data.h +++ b/arch/arm/include/asm/global_data.h @@ -89,6 +89,11 @@ typedef struct global_data { #define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */ #define GD_FLG_ENV_READY 0x00080 /* Environment imported into hash table */
+#ifdef CONFIG_PRELOADER +/* SPL works from internal RAM. gd pointer can be in .data section */ +#define DECLARE_GLOBAL_DATA_PTR extern gd_t *gd +#else #define DECLARE_GLOBAL_DATA_PTR register volatile gd_t *gd asm ("r8") +#endif
#endif /* __ASM_GBL_DATA_H */