IMX6 platform has two stage boot loaders like SPL and U-Boot proper. For each stage we need to burn the image on to flash with respective offsets.
This patch create a single image using binman, so that user can get rid of burning different stage boot images.
without this patch: ------------------ $ sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1 $ sudo dd if=u-boot-dtb.img of=/dev/mmcblk0 bs=1k seek=69
with this patch: --------------- $ sudo dd if=u-boot-imx6-with-spl.bin of=/dev/mmcblk0 bs=1k seek=1
This would be easily extended to single image creation for other imx6 soc boards.
This was tested on engicam imx6qdl and imx6ul boards
Reviewed-by: Jagan Teki jagan@amarulasolutions.com Signed-off-by: Shyam Saini shyam.saini@amarulasolutions.com --- Makefile | 10 ++++++++++ arch/arm/dts/imx6-u-boot-binman.dtsi | 16 ++++++++++++++++ arch/arm/dts/imx6qdl-u-boot.dtsi | 1 + arch/arm/dts/imx6ul-u-boot.dtsi | 1 + arch/arm/mach-imx/mx6/Kconfig | 2 ++ doc/imx/common/imx6.txt | 5 +++++ 6 files changed, 35 insertions(+) create mode 100644 arch/arm/dts/imx6-u-boot-binman.dtsi
diff --git a/Makefile b/Makefile index f2c7bb6041..474271a1d0 100644 --- a/Makefile +++ b/Makefile @@ -851,6 +851,11 @@ ifeq ($(CONFIG_ARCH_SUNXI)$(CONFIG_SPL),yy) ALL-y += u-boot-sunxi-with-spl.bin endif
+# Build a combined spl + u-boot image for imx6 +ifeq ($(filter y, $(CONFIG_MX6QDL) $(CONFIG_MX6UL))$(CONFIG_SPL)$(CONFIG_OF_CONTROL),yyy) +ALL-$(CONFIG_ARCH_MX6) += u-boot-imx6-with-spl.bin +endif + # enable combined SPL/u-boot/dtb rules for tegra ifeq ($(CONFIG_TEGRA)$(CONFIG_SPL),yy) ALL-y += u-boot-tegra.bin u-boot-nodtb-tegra.bin @@ -1364,6 +1369,11 @@ u-boot-br.bin: u-boot FORCE endif endif
+ifeq ($(filter y, $(CONFIG_MX6QDL) $(CONFIG_MX6UL))$(CONFIG_SPL)$(CONFIG_OF_CONTROL),yyy) +u-boot-imx6-with-spl.bin: SPL u-boot-dtb.img FORCE + @$(call if_changed,binman) +endif + # x86 uses a large ROM. We fill it with 0xff, put the 16-bit stuff (including # reset vector) at the top, Intel ME descriptor at the bottom, and U-Boot in # the middle. This is handled by binman based on an image description in the diff --git a/arch/arm/dts/imx6-u-boot-binman.dtsi b/arch/arm/dts/imx6-u-boot-binman.dtsi new file mode 100644 index 0000000000..fa02d5f61f --- /dev/null +++ b/arch/arm/dts/imx6-u-boot-binman.dtsi @@ -0,0 +1,16 @@ +#include <config.h> + +/ { + binman { + filename = "u-boot-imx6-with-spl.bin"; + pad-byte = <0xff>; + + blob { + filename = "SPL"; + }; + + u-boot-img { + offset = <CONFIG_SPL_PAD_TO>; + }; + }; +}; diff --git a/arch/arm/dts/imx6qdl-u-boot.dtsi b/arch/arm/dts/imx6qdl-u-boot.dtsi index 0aa29e38b8..3dfa84dcac 100644 --- a/arch/arm/dts/imx6qdl-u-boot.dtsi +++ b/arch/arm/dts/imx6qdl-u-boot.dtsi @@ -2,6 +2,7 @@ /* * Copyright (C) 2018 Jagan Teki jagan@amarulasolutions.com */ +#include "imx6-u-boot-binman.dtsi"
/ { soc { diff --git a/arch/arm/dts/imx6ul-u-boot.dtsi b/arch/arm/dts/imx6ul-u-boot.dtsi index eb190cf8c8..4e769da0d5 100644 --- a/arch/arm/dts/imx6ul-u-boot.dtsi +++ b/arch/arm/dts/imx6ul-u-boot.dtsi @@ -2,6 +2,7 @@ /* * Copyright (C) 2018 Jagan Teki jagan@amarulasolutions.com */ +#include "imx6-u-boot-binman.dtsi"
/ { soc { diff --git a/arch/arm/mach-imx/mx6/Kconfig b/arch/arm/mach-imx/mx6/Kconfig index e782859b1e..7de1a00935 100644 --- a/arch/arm/mach-imx/mx6/Kconfig +++ b/arch/arm/mach-imx/mx6/Kconfig @@ -34,6 +34,7 @@ config MX6QDL bool select HAS_CAAM select MX6_SMP + select BINMAN if SPL && OF_CONTROL
config MX6S bool @@ -57,6 +58,7 @@ config MX6UL select ROM_UNIFIED_SECTIONS select SYSCOUNTER_TIMER select SYS_L2CACHE_OFF + select BINMAN if SPL && OF_CONTROL
config MX6UL_LITESOM bool diff --git a/doc/imx/common/imx6.txt b/doc/imx/common/imx6.txt index eab88353f6..5a10f94957 100644 --- a/doc/imx/common/imx6.txt +++ b/doc/imx/common/imx6.txt @@ -88,3 +88,8 @@ Reading bank 4:
Word 0x00000002: 9f027772 00000004
+2. Single Boot Image +--------------------- +Write your single imx6 uboot image as: + +$ sudo dd if=u-boot-imx6-with-spl.bin of=/dev/mmcblk0 bs=1k seek=1