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authorStefan Roese <sr@denx.de>2015-08-25 13:49:41 +0200
committerLuka Perkov <luka.perkov@sartura.hr>2015-10-21 02:25:00 +0200
commit944c7a317675d8dbf082a2f144fec1139a5cb811 (patch)
tree0f0c7b461e220787baf29d1b16d9b1dc162a66bd /Makefile
parentc3d891405bda42cfd00958ab0143e0d3900b06d9 (diff)
arm: mvebu: Add option to use UART xmodem protocol via kwboot
This patch enables the use of the kwboot tool, to boot mainline U-Boot on the Marvell Armada XP/38x SoC's. This is done by returning to the SoC's BootROM after SPL has initialized the SDRAM. We need to make sure to not reconfigure the internal register space and MBARs. Otherwise the BootROM will not be able to continue after SPL jumps back to it. To use this feature, please don't forget to change the BOOT_FROM line in your board specfic kwbimage.cfg file this way: BOOT_FROM uart Tested on these Marvell eval boards: DB-MV784MP-GP - Armada XP DB-88F6820-GP - Armada 38x Signed-off-by: Stefan Roese <sr@denx.de> Cc: Dirk Eibach <eibach@gdsys.de> Cc: Kevin Smith <kevin.smith@elecsyscorp.com> Cc: Luka Perkov <luka.perkov@sartura.hr>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile12
1 files changed, 11 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index fd060241042..3b2eebf4b72 100644
--- a/Makefile
+++ b/Makefile
@@ -901,7 +901,7 @@ MKIMAGEFLAGS_u-boot.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
-T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
MKIMAGEFLAGS_u-boot-spl.kwb = -n $(srctree)/$(CONFIG_SYS_KWD_CONFIG:"%"=%) \
- -T kwbimage -a $(CONFIG_SPL_TEXT_BASE) -e $(CONFIG_SPL_TEXT_BASE)
+ -T kwbimage -a $(CONFIG_SYS_TEXT_BASE) -e $(CONFIG_SYS_TEXT_BASE)
MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
-R $(srctree)/$(CONFIG_SYS_FSL_PBL_PBI:"%"=%) -T pblimage
@@ -909,8 +909,18 @@ MKIMAGEFLAGS_u-boot.pbl = -n $(srctree)/$(CONFIG_SYS_FSL_PBL_RCW:"%"=%) \
u-boot.img u-boot.kwb u-boot.pbl: u-boot.bin FORCE
$(call if_changed,mkimage)
+# If the kwboot xmodem protocol is used, to boot U-Boot on the MVEBU
+# SoC's, the SPL U-Boot returns to the BootROM after it completes
+# the SDRAM setup. The BootROM expects no U-Boot header in the main
+# U-Boot image. So we need to combine SPL and u-boot.bin instead of
+# u-boot.img in this case.
+ifdef CONFIG_MVEBU_BOOTROM_UARTBOOT
+u-boot-spl.kwb: u-boot.bin spl/u-boot-spl.bin FORCE
+ $(call if_changed,mkimage)
+else
u-boot-spl.kwb: u-boot.img spl/u-boot-spl.bin FORCE
$(call if_changed,mkimage)
+endif
MKIMAGEFLAGS_u-boot-dtb.img = $(MKIMAGEFLAGS_u-boot.img)