This series adds support for generating multiple images from a single
barebox binary. This helps when for example boards come with different
SDRAM setups. Instead of having a config for each SDRAM setup we only
have a single configuration, but generate multiple images from it.
The basic idea behind this is using a PBL. As of now the PBL on ARM
has a single entrypoint: barebox_arm_entry. With multi image support
instead we have many entrypoints in the PBL. The correct one will
be chosen by the linker when generating a particular image. The PBLs
can also contain a devicetree which is passed to the regular barebox
image. This opens up the way to a true multi board barebox.
Additionally each PBL/barebox combination can be encapsulated into a
SoC specific image so that the different requirements for the boards
booting a image can be met.
This series adds the make infrastructure and converts a few boards
over to use it.
Sascha
----------------------------------------------------------------
Sascha Hauer (12):
ARM: split barebox_arm_head in two separate functions
ARM: pbl: move linker script to lib
ARM: build dtbs unconditionally
ARM: Add image end section
imx-image: fix path to imx-image binary
Add multi images support
ARM: i.MX: Add multi images support Makefile
ARM: i.MX27 pcm038: switch to multi image
ARM: i.MX53 loco: Switch to imximage
ARM: i.MX53 loco: Switch to multi image support
ARM: dmo realq7: switch to multi image support
ARM: i.MX51 babbage: switch to multi image support
Makefile | 8 ++
arch/arm/Makefile | 2 +-
arch/arm/boards/dmo-mx6-realq7/lowlevel.c | 12 +-
arch/arm/boards/freescale-mx51-pdk/lowlevel.c | 14 ++-
arch/arm/boards/freescale-mx53-loco/Makefile | 4 +-
arch/arm/boards/freescale-mx53-loco/board.c | 8 +-
arch/arm/boards/freescale-mx53-loco/dcd-data.h | 54 ---------
.../boards/freescale-mx53-loco/flash-header.imxcfg | 54 +++++++++
arch/arm/boards/freescale-mx53-loco/flash_header.c | 52 ---------
arch/arm/boards/freescale-mx53-loco/lowlevel.c | 14 ++-
arch/arm/boards/pcm038/lowlevel.c | 4 +-
arch/arm/cpu/Makefile | 4 +-
arch/arm/cpu/start-images.c | 49 ++++++++
arch/arm/cpu/uncompress.c | 108 ++++++++++++++++++
arch/arm/dts/Makefile | 4 +
arch/arm/include/asm/barebox-arm-head.h | 14 ++-
arch/arm/include/asm/barebox-arm.h | 4 +
arch/arm/{pbl/zbarebox.lds.S => lib/pbl.lds.S} | 9 +-
arch/arm/lib/runtime-offset.S | 3 +
arch/arm/mach-imx/Kconfig | 7 +-
arch/arm/pbl/Makefile | 5 +-
images/Makefile | 124 +++++++++++++++++++++
images/Makefile.imx | 36 ++++++
include/asm-generic/sections.h | 1 +
pbl/Kconfig | 16 +++
scripts/Makefile.lib | 2 +-
26 files changed, 481 insertions(+), 131 deletions(-)
delete mode 100644 arch/arm/boards/freescale-mx53-loco/dcd-data.h
create mode 100644 arch/arm/boards/freescale-mx53-loco/flash-header.imxcfg
delete mode 100644 arch/arm/boards/freescale-mx53-loco/flash_header.c
create mode 100644 arch/arm/cpu/start-images.c
create mode 100644 arch/arm/cpu/uncompress.c
rename arch/arm/{pbl/zbarebox.lds.S => lib/pbl.lds.S} (93%)
create mode 100644 images/Makefile
create mode 100644 images/Makefile.imx
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