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| author | Luca Ceresoli <luca.ceresoli@bootlin.com> | 2023-03-10 11:07:52 +0100 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2023-04-04 09:35:39 +0200 |
| commit | 95942f99a7057359c07bf383214d57154e2466fe (patch) | |
| tree | b07394e657c944af10db5adb2898a13367968221 | |
| parent | d08c00082183dc6a2301690678794d2b80e75258 (diff) | |
| download | u-boot-95942f99a7057359c07bf383214d57154e2466fe.zip u-boot-95942f99a7057359c07bf383214d57154e2466fe.tar.gz u-boot-95942f99a7057359c07bf383214d57154e2466fe.tar.bz2 | |
arm: imx: add u-boot-nand.imx to boot from NAND without SPL
U-Boot can be booted from NAND without SPL by prepending the DCD header to
the actual U-Boot binary. However this requires prepending 1024 bytes to
u-boot.imx (DCD + u-boot.bin).
There is already a similar target to build spl/u-boot-nand-spl.imx, add the
same option for no-SPL boot.
Tested on i.MX6ULL.
The resulting layout of u-boot-nand.imx is:
- Offset 0x0000 (0 KiB): padding
- Offset 0x0400 (1 KiB): DCD header
- Offset 0x1000 (4 KiB): u-boot.bin
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-imx/Makefile | 6 |
2 files changed, 9 insertions, 0 deletions
@@ -1522,6 +1522,9 @@ endif u-boot.uim: u-boot.bin FORCE $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ +u-boot-nand.imx: u-boot.imx FORCE + $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ + u-boot-with-spl.imx u-boot-with-nand-spl.imx: SPL $(if $(CONFIG_OF_SEPARATE),u-boot.img,u-boot.uim) FORCE $(Q)$(MAKE) $(build)=arch/arm/mach-imx $@ diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 9bcb23c..906f538 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -136,6 +136,12 @@ u-boot.imx: MKIMAGEOUTPUT = u-boot.imx.log u-boot.imx: u-boot.bin u-boot.cfgout $(PLUGIN).bin FORCE $(call if_changed,mkimage) +quiet_cmd_u-boot-nand_imx = GEN $@ +cmd_u-boot-nand_imx = (dd bs=1024 count=1 if=/dev/zero 2>/dev/null) | cat - $< > $@ + +u-boot-nand.imx: u-boot.imx FORCE + $(call if_changed,u-boot-nand_imx) + ifeq ($(CONFIG_MULTI_DTB_FIT),y) MKIMAGEFLAGS_u-boot-dtb.imx = -n $(filter-out $(PLUGIN).bin $< $(PHONY),$^) \ -T $(IMAGE_TYPE) -e $(CONFIG_TEXT_BASE) |