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u-boot/arch/powerpc/config.mk

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Initial revision
2002-08-14 20:30:46 +00:00
#
arch/powerpc/*/config.mk: make CONFIG_SYS_LDSCRIPT settings work As we try to get rid of board specific config.mk files we must provide a way for board specific settings of the LDSCRIPT variable (path to the linker script) where needed. We now implement the following hierarchy: - Highest priority has a "#define CONFIG_SYS_LDCONFIG" in the board config file. - If CONFIG_SYS_LDCONFIG is not set, and the system is booting from NAND (CONFIG_NAND_SPL is set), then a board specific linker script board/$(BOARDDIR)/u-boot-nand.lds gets used. - If we are not booting from NAND, we test if a processor specific linker script arch/powerpc/cpu/$(CPU)/u-boot.lds exists; if so we use that. - As default, arch/powerpc/config.mk gets used. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: Kim Phillips <kim.phillips@freescale.com> Cc: Kumar Gala <kumar.gala@freescale.com> Cc: Andy Fleming <afleming@gmail.com> Acked-by: Stefan Roese <sr@denx.de>
2010-11-21 15:34:05 +00:00
# (C) Copyright 2000-2010
Initial revision
2002-08-14 20:30:46 +00:00
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
Add GPL-2.0+ SPDX-License-Identifier to source files Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-07-08 07:37:19 +00:00
# SPDX-License-Identifier: GPL-2.0+
Initial revision
2002-08-14 20:30:46 +00:00
#
kbuild: fix CROSS_COMPILE settings in config.mk The syntax CROSS_COMIPLE ?= <cross_compiler_prefix> does not work because config.mk is parsed after exporting CROSS_COMPILE. Like Linux Kernel's arch/$(ARCH)/Makefile, we must write as follows: ifeq ($(CROSS_COMPILE),) CROSS_COMPILE := <cross_compiler_prefix> endif Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-28 05:33:30 +00:00
ifeq ($(CROSS_COMPILE),)
CROSS_COMPILE := ppc_8xx-
endif
push CROSS_COMPILE out to $(ARCH)_config.mk Each arch should handle setting a proper default CROSS_COMPILE value in their own config.mk file rather than having to maintain a large ugly list in the Makefile. By using conditional assignment, we don't have to worry about the variable already being set (env/cmdline/etc...). The common config.mk file takes care of exporting CROSS_COMPILE already, and while a few variables (toolchain ones) utilize CROSS_COMPILE before including the arch config.mk, they do so with deferred assignment. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-15 03:33:14 +00:00
Make STANDALONE_LOAD_ADDR configurable per board Rename STANDALONE_LOAD_ADDR into CONFIG_STANDALONE_LOAD_ADDR and allow that the architecture-specific default value gets overwritten by defining the value in the board header file. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Tsi Chung Liew <tsi-chung.liew@freescale.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2011-02-04 13:25:17 +00:00
CONFIG_STANDALONE_LOAD_ADDR ?= 0x40000
Introduce a new linker flag LDFLAGS_FINAL commit 8aba9dceebb14144e07d19593111ee3a999c37fc Divides variable of linker flags to LDFLAGS-u-boot and LDFLAGS breaks the usage of --gc-section to build nand_spl. We still need linker option --gc-section for every uboot image, not only the main one. LDFLAGS_FINAL passes the --gc-sections to each uboot image. To get the proper linker flags, we use LDFLAGS and LDFLAGS_FINAL to replace PLATFORM_LDFLAGS in the Makefile of each nand_spl board. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
2011-02-22 21:38:05 +00:00
LDFLAGS_FINAL += --gc-sections
powerpc: add --bss-plt to LDFLAGS With some versions of gcc (that we know of 4.6.3 and 4.8.2 are affected) it is necessary to specify --bss-plt to get the final blrl in the _GOT2_TABLE_. Without this the last symbol does not get it's address relocated. For the P2041RDB board this ended up being NetArpWaitTimerStart which caused the ARP packets to timeout immediately. Signed-off-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: Chris Packham <judge.packham@gmail.com> Acked-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Acked-by: Scott Wood <scottwood@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
2014-09-10 04:03:10 +00:00
LDFLAGS_FINAL += --bss-plt
PowerPC: merge commonly-defined flags PLATFORM_RELFLAGS += -meabi PLATFORM_CPPFLAGS += -ffixed-r2 were defined in all arch/powerpc/${CPU}/config.mk. This commit moves them to arch/powerpc/config.mk. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-11-26 01:53:58 +00:00
PLATFORM_RELFLAGS += -fpic -mrelocatable -ffunction-sections -fdata-sections \
-meabi
kconfig: delete redundant CONFIG_${ARCH} definition CONFIG_${ARCH} is defined by Kconfig. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2014-07-30 05:08:23 +00:00
PLATFORM_CPPFLAGS += -D__powerpc__ -ffixed-r2
Divides variable of linker flags to LDFLAGS-u-boot and LDFLAGS Linker needs to use the proper endian/bfd flags even when doing partial linking. LDFLAGS_u-boot sets linker option which is called it when U-boot is built (u-boot final). LDFLAGS sets necessary option by partial linking (use in cmd_link_o_target). CC: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2011-01-06 01:23:54 +00:00
PLATFORM_LDFLAGS += -n
config.mk: Move arch-specific condition to $(ARCH)_config.mk Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2008-08-30 20:37:04 +00:00
ppc: Enable generic board support This enables generic board support so that ppc boards can define CONFIG_SYS_GENERIC_BOARD. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-11 06:50:01 +00:00
# Support generic board on PPC
__HAVE_ARCH_GENERIC_BOARD := y
config.mk: Move arch-specific condition to $(ARCH)_config.mk Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2008-08-30 20:37:04 +00:00
#
# When cross-compiling on NetBSD, we have to define __PPC__ or else we
# will pick up a va_list declaration that is incompatible with the
# actual argument lists emitted by the compiler.
#
# [Tested on NetBSD/i386 1.5 + cross-powerpc-netbsd-1.3]
ifeq ($(CROSS_COMPILE),powerpc-netbsd-)
PLATFORM_CPPFLAGS+= -D__PPC__
endif
ifeq ($(CROSS_COMPILE),powerpc-openbsd-)
PLATFORM_CPPFLAGS+= -D__PPC__
endif
powerpc: change .fixup test to a GCC version test This was introduced by commit 244615197469dd6fe75ae082f38424b97c79aeaf, but it fails in a minimal SPL build where the only thing in arch/powerpc/lib is cache.c, which apparently doesn't generate any fixup records. The problem is reported to occur with GCC 3.x, so insist on GCC 4.0 or newer. Patterned after checkthumb as suggested by Tom Rini. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Tom Rini <trini@ti.com> -- v2: test gcc version instead of testing nothing
2012-09-21 00:10:01 +00:00
# Only test once
ifneq ($(CONFIG_SPL_BUILD),y)
kbuild: move "checkgcc4" to PowerPC archprepare "checkgcc4" is used only for PowerPC. Move it to arch/powerpc/config.mk. To make sure gcc is new enough before beginning build, run "checkgcc4" during "archprepare". Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-03-05 08:49:23 +00:00
archprepare: checkgcc4
# GCC 3.x is reported to have problems generating the type of relocation
# that U-Boot wants.
# See http://lists.denx.de/pipermail/u-boot/2012-September/135156.html
checkgcc4:
@if test $(call cc-version) -lt 0400; then \
echo -n '*** Your GCC is too old, please upgrade to GCC 4.x or newer'; \
false; \
fi
powerpc: change .fixup test to a GCC version test This was introduced by commit 244615197469dd6fe75ae082f38424b97c79aeaf, but it fails in a minimal SPL build where the only thing in arch/powerpc/lib is cache.c, which apparently doesn't generate any fixup records. The problem is reported to occur with GCC 3.x, so insist on GCC 4.0 or newer. Patterned after checkthumb as suggested by Tom Rini. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Tom Rini <trini@ti.com> -- v2: test gcc version instead of testing nothing
2012-09-21 00:10:01 +00:00
endif
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