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boot/uboot: add support for i.MX28 SD format

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Allow to generate u-boot.sd, Freescale i.MX28 SB format with a header for
booting from an SD card.

U-boot includes an mxsboot tool to generate this format, starting from
v2011.12.

See u-boot doc/README.mxs (or doc/README.mx28_common before 2013.07).

[Arnout:
 - Wrap Config.in help text at 72 columns.
 - Remove v from U-Boot version specifier.
 - Refer to different README name before 2013.07.
 - Depend on host-elftosb
 - Add comment to clarify sb -> sd conversion.]

Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com>
Tested-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Acked-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Vincent Stehlé 2015-03-22 14:25:14 +01:00 committed by Thomas Petazzoni
parent 5c4aa31640
commit 1536362eff
2 changed files with 19 additions and 0 deletions
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12
boot/uboot/Config.in
View File

@ -117,6 +117,18 @@ config BR2_TARGET_UBOOT_FORMAT_SB
depends on BR2_arm
bool "u-boot.sb"
config BR2_TARGET_UBOOT_FORMAT_SD
depends on BR2_arm
bool "u-boot.sd"
help
This is Freescale i.MX28 SB format, with a header for booting
from an SD card.
U-boot includes an mxsboot tool to generate this format,
starting from 2011.12.
See doc/README.mxs (or doc/README.mx28_common before 2013.07)
config BR2_TARGET_UBOOT_FORMAT_CUSTOM
bool "Custom (specify below)"
help

7
boot/uboot/uboot.mk
View File

@ -49,6 +49,11 @@ else ifeq ($(BR2_TARGET_UBOOT_FORMAT_SB),y)
UBOOT_BIN = u-boot.sb
UBOOT_MAKE_TARGET = $(UBOOT_BIN)
UBOOT_DEPENDENCIES += host-elftosb
else ifeq ($(BR2_TARGET_UBOOT_FORMAT_SD),y)
# BootStream (.sb) is generated by U-Boot, we convert it to SD format
UBOOT_BIN = u-boot.sd
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
@ -116,6 +121,8 @@ define UBOOT_BUILD_CMDS
$(TARGET_CONFIGURE_OPTS) \
$(MAKE) -C $(@D) $(UBOOT_MAKE_OPTS) \
$(UBOOT_MAKE_TARGET)
$(if $(BR2_TARGET_UBOOT_FORMAT_SD),
$(@D)/tools/mxsboot sd $(@D)/u-boot.sb $(@D)/u-boot.sd)
endef
define UBOOT_BUILD_OMAP_IFT