The Freescale MXS SoCs have a multi staged boot process which needs different images composed out of different binaries. The ROM executes a so called bootstream which contains multiple executables. The first one is executed in SRAM and the purpose of this binary is to setup the internal PMIC and the SDRAM. The second image is usually the bootloader itself. In case of barebox the bootstream is composed out of the self extracting barebox image (pblx) and the prepare stage for setting up the SDRAM. The bootstream image itself is useful for USB boot, but for booting from SD cards or NAND a BCB header has to be prepended to the image. In case of SD boot the image has the .mxssd file extension in barebox. Since the bootstream images are encrypted they are not suitable for 2nd stage execution. For this purpose the 2nd stage images are generated. Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx> --- images/.gitignore | 2 ++ images/Makefile | 3 ++- images/Makefile.mxs | 22 ++++++++++++++++++++++ 3 files changed, 26 insertions(+), 1 deletion(-) create mode 100644 images/Makefile.mxs diff --git a/images/.gitignore b/images/.gitignore index d27e71a..c5377d9 100644 --- a/images/.gitignore +++ b/images/.gitignore @@ -16,6 +16,8 @@ *.t124img.cfg *.mlo *.mlospi +*.mxsbs +*.mxssd pbl.lds barebox.x barebox.z diff --git a/images/Makefile b/images/Makefile index c55cbdc..7c3aaf7 100644 --- a/images/Makefile +++ b/images/Makefile @@ -103,6 +103,7 @@ include $(srctree)/images/Makefile.mvebu include $(srctree)/images/Makefile.rockchip include $(srctree)/images/Makefile.socfpga include $(srctree)/images/Makefile.tegra +include $(srctree)/images/Makefile.mxs targets += $(image-y) pbl.lds barebox.x barebox.z targets += $(patsubst %,%.pblx,$(pblx-y)) @@ -119,5 +120,5 @@ images: $(addprefix $(obj)/, $(image-y)) FORCE clean-files := *.pbl *.pblb *.pblx *.map start_*.imximg *.img barebox.z start_*.kwbimg \ start_*.kwbuartimg *.socfpgaimg *.mlo *.t20img *.t20img.cfg *.t30img \ - *.t30img.cfg *.t124img *.t124img.cfg *.mlospi *.mlo + *.t30img.cfg *.t124img *.t124img.cfg *.mlospi *.mlo *.mxsbs *.mxssd clean-files += pbl.lds diff --git a/images/Makefile.mxs b/images/Makefile.mxs new file mode 100644 index 0000000..c6056e6 --- /dev/null +++ b/images/Makefile.mxs @@ -0,0 +1,22 @@ +# +# barebox image generation Makefile for MXS images +# + +# %.mxsbs - convert into MXS BootStream image +# ---------------------------------------------------------------- +quiet_cmd_mxs_bootstream = MXS-BOOTSTREAM $@ + cmd_mxs_bootstream = $(objtree)/scripts/mxsimage -c $(CFG_$(@F)) -b $< -o $@ -p $(word 2,$^) + +$(obj)/%.mxsbs: $(obj)/%.pblx $(obj)/prep_%.pblb FORCE + $(call if_changed,mxs_bootstream) + +# %.mxssd - convert into MXS SD card image +# ---------------------------------------------------------------- +quiet_cmd_mxs_sd = MXS-SD $@ + cmd_mxs_sd = $(objtree)/scripts/mxsboot sd $< $@ + +$(obj)/%.mxssd: $(obj)/% + $(call if_changed,mxs_sd) + +board = $(srctree)/arch/$(ARCH)/boards +mxscfg = $(srctree)/arch/arm/mach-mxs/mxsimg.cfg -- 2.1.3 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
