diff --git a/boot/uboot/Config.in b/boot/uboot/Config.in index e884cc0163..fa1741c1d6 100644 --- a/boot/uboot/Config.in +++ b/boot/uboot/Config.in @@ -142,6 +142,63 @@ config BR2_TARGET_UBOOT_FORMAT_SD See doc/README.mxs (or doc/README.mx28_common before 2013.07) +config BR2_TARGET_UBOOT_FORMAT_NAND + depends on BR2_arm + bool "u-boot.nand" + help + This is Freescale i.MX28 BootStream format (.sb), with a header + for booting from a NAND flash. + + U-boot includes an mxsboot tool to generate this format, + starting from 2011.12. + + There are two possibilities when preparing an image writable to + NAND flash: + 1) The NAND was not written at all yet or the BCB (Boot Control + Blocks) is broken. In this case, the NAND image 'u-boot.nand' + needs to written. + 2) The NAND flash was already written with a good BCB. This + applies after 'u-boot.nand' was correctly written. There is no + need to write the BCB again. In this case, the bootloader can be + upgraded by writing 'u-boot.sb'. + + To satisfy both cases, the 'u-boot.nand' image obtained from + mxsboot as well as the U-Boot make target 'u-boot.sb' are copied + to the binaries directory. + + See doc/README.mxs (or doc/README.mx28_common before 2013.07) + +if BR2_TARGET_UBOOT_FORMAT_NAND + +config BR2_TARGET_UBOOT_FORMAT_NAND_PAGE_SIZE + int "NAND page size" + default 2048 + help + The NAND page size of the targets NAND flash in bytes as a + decimal integer value. + + The value provided here is passed to the -w option of mxsboot. + +config BR2_TARGET_UBOOT_FORMAT_NAND_OOB_SIZE + int "NAND OOB size" + default 64 + help + The NAND OOB size of the targets NAND flash in bytes as a + decimal integer value. + + The value provided here is passed to the -o option of mxsboot. + +config BR2_TARGET_UBOOT_FORMAT_NAND_ERASE_SIZE + int "NAND erase size" + default 131072 + help + The NAND eraseblock size of the targets NAND flash in bytes as + a decimal integer value. + + The value provided here is passed to the -e option of mxsboot. + +endif + config BR2_TARGET_UBOOT_FORMAT_CUSTOM bool "Custom (specify below)" help diff --git a/boot/uboot/uboot.mk b/boot/uboot/uboot.mk index 8c10c6123a..2cfff282c2 100644 --- a/boot/uboot/uboot.mk +++ b/boot/uboot/uboot.mk @@ -58,6 +58,10 @@ else ifeq ($(BR2_TARGET_UBOOT_FORMAT_SD),y) UBOOT_BIN = u-boot.sd UBOOT_MAKE_TARGET = u-boot.sb UBOOT_DEPENDENCIES += host-elftosb +else ifeq ($(BR2_TARGET_UBOOT_FORMAT_NAND),y) +UBOOT_BIN = u-boot.nand +UBOOT_MAKE_TARGET = u-boot.sb +UBOOT_DEPENDENCIES += host-elftosb else ifeq ($(BR2_TARGET_UBOOT_FORMAT_CUSTOM),y) UBOOT_BIN = $(call qstrip,$(BR2_TARGET_UBOOT_FORMAT_CUSTOM_NAME)) else @@ -133,6 +137,12 @@ define UBOOT_BUILD_CMDS $(UBOOT_MAKE_TARGET) $(if $(BR2_TARGET_UBOOT_FORMAT_SD), $(@D)/tools/mxsboot sd $(@D)/u-boot.sb $(@D)/u-boot.sd) + $(if $(BR2_TARGET_UBOOT_FORMAT_NAND), + $(@D)/tools/mxsboot \ + -w $(BR2_TARGET_UBOOT_FORMAT_NAND_PAGE_SIZE) \ + -o $(BR2_TARGET_UBOOT_FORMAT_NAND_OOB_SIZE) \ + -e $(BR2_TARGET_UBOOT_FORMAT_NAND_ERASE_SIZE) \ + nand $(@D)/u-boot.sb $(@D)/u-boot.nand) endef define UBOOT_BUILD_OMAP_IFT @@ -142,6 +152,8 @@ endef define UBOOT_INSTALL_IMAGES_CMDS cp -dpf $(@D)/$(UBOOT_BIN) $(BINARIES_DIR)/ + $(if $(BR2_TARGET_UBOOT_FORMAT_NAND), + cp -dpf $(@D)/$(UBOOT_MAKE_TARGET) $(BINARIES_DIR)) $(if $(BR2_TARGET_UBOOT_SPL), cp -dpf $(@D)/$(call qstrip,$(BR2_TARGET_UBOOT_SPL_NAME)) $(BINARIES_DIR)/) $(if $(BR2_TARGET_UBOOT_ENVIMAGE),