Commit 4730df02 authored Oct 12, 2015 by Ronak Desai Committed by Thomas Petazzoni Oct 12, 2015

uboot: arm64 arch build support



For a 64bit arm architecture, Buildroot uses arm64 terminology and
from the top-level Makefile KERNEL_ARCH is set to arm64 which is then
passed to the uboot build.  This causes a compilation issue as uboot
uses the top-level system architecture as it's $(ARCH).  So
arch/$(ARCH)/Makefile doesn't work with arm64 unless we adjust the
arch.

[Thomas:
 - rewrap commit message text.
 - simplify comment in the code.]

Signed-off-by: Ronak Desai <ronak.desai@rockwellcollins.com>
Signed-off-by: Matt Weber <matthew.weber@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

parent 50963b16

boot/uboot/uboot.mk

+6 −0

Original line number	Diff line number	Diff line
		@@ -71,7 +71,13 @@ UBOOT_BIN = u-boot.bin
		UBOOT_BIN_IFT = $(UBOOT_BIN).ift
		endif

		# The kernel calls AArch64 'arm64', but U-Boot calls it just 'arm', so
		# we have to special case it.
		ifeq ($(KERNEL_ARCH),arm64)
		UBOOT_ARCH = arm
		else
		UBOOT_ARCH = $(KERNEL_ARCH)
		endif

		UBOOT_MAKE_OPTS += \
		CROSS_COMPILE="$(TARGET_CROSS)" \