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u-boot/lib_blackfin/config.mk

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Add missing Blackfin files.
2006-03-12 01:12:27 +00:00
#
# (C) Copyright 2000-2002
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
push CROSS_COMPILE out to $(ARCH)_config.mk Each arch should handle setting a proper default CROSS_COMPILE value in their own config.mk file rather than having to maintain a large ugly list in the Makefile. By using conditional assignment, we don't have to worry about the variable already being set (env/cmdline/etc...). The common config.mk file takes care of exporting CROSS_COMPILE already, and while a few variables (toolchain ones) utilize CROSS_COMPILE before including the arch config.mk, they do so with deferred assignment. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-15 03:33:14 +00:00
CROSS_COMPILE ?= bfin-uclinux-
push LOAD_ADDR out to arch mk files Rather than maintain/extend the current ifeq($(ARCH)) mess that exists in the standalone Makefile, push the setting up of LOAD_ADDR out to the arch config.mk (and rename to STANDALONE_LOAD_ADDR in the process). This keeps the common code clean and lets the arch do whatever crazy crap it wants in its own area. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-09-04 03:12:47 +00:00
STANDALONE_LOAD_ADDR = 0x1000
Blackfin: unify cpu and boot modes All of the duplicated code for Blackfin processors and boot modes have been unified. After all, the core is the same for all processors, just the peripheral set differs (which gets handled in the drivers). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-03-30 19:46:13 +00:00
CONFIG_BFIN_CPU := $(strip $(subst ",,$(CONFIG_BFIN_CPU)))
CONFIG_BFIN_BOOT_MODE := $(strip $(subst ",,$(CONFIG_BFIN_BOOT_MODE)))
Blackfin: support embedding the environment into loader files (LDRs) For the most part, the Blackfin processor boots files in the LDR format rather than binary/ELF files. So we want to export the environment as a raw blob to the LDR utility so it can embed it at the right location. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-10-06 08:42:33 +00:00
CONFIG_ENV_OFFSET := $(strip $(subst ",,$(CONFIG_ENV_OFFSET)))
CONFIG_ENV_SIZE := $(strip $(subst ",,$(CONFIG_ENV_SIZE)))
Blackfin: unify cpu and boot modes All of the duplicated code for Blackfin processors and boot modes have been unified. After all, the core is the same for all processors, just the peripheral set differs (which gets handled in the drivers). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-03-30 19:46:13 +00:00
Blackfin: change global data register from P5 to P3 Since the Blackfin ABI favors higher scratch registers by default, use the last scratch register (P3) for global data rather than the first (P5). This allows the compiler's register allocator to use higher number scratch P registers, which in turn better matches the Blackfin instruction set, which reduces the size of U-Boot by more than 1024 bytes... Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-08-17 15:23:02 +00:00
PLATFORM_RELFLAGS += -ffixed-P3 -fomit-frame-pointer -mno-fdpic
move -ffixed-P5 to blackfin_config.mk and drop unused -D__BLACKFIN__ Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-05 00:26:55 +00:00
PLATFORM_CPPFLAGS += -DCONFIG_BLACKFIN
add support for Blackfin symbol prefixes to examples Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-05 00:26:55 +00:00
Blackfin: enable --gc-sections Start building all Blackfin boards with -ffunction-sections/-fdata-sections and linking with --gc-sections. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-10-24 22:18:16 +00:00
LDFLAGS += --gc-sections
PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
Blackfin: convert BFIN_CPU to CONFIG_BFIN_CPU Stop tying things to the processor that should be tied to other defines and change BFIN_CPU to CONFIG_BFIN_CPU so that it can be used in the build system to select the -mcpu option. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-18 10:26:48 +00:00
ifneq (,$(CONFIG_BFIN_CPU))
PLATFORM_RELFLAGS += -mcpu=$(CONFIG_BFIN_CPU)
endif
Blackfin: move ALL += u-boot.ldr to blackfin_config.mk The way the ALL variable is used allows for config.mk's to add more targets themselves without having to clutter up the top level Makefile. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-15 04:25:19 +00:00
ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_BYPASS)
ALL += $(obj)u-boot.ldr
endif
add support for Blackfin symbol prefixes to examples Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-05 00:26:55 +00:00
SYM_PREFIX = _
generate u-boot.ldr for Blackfin targets Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-05 00:26:57 +00:00
Blackfin: fix booting with older bootroms (no EVT1) When dropping jump block support, the assumption was that all bootroms supported entry point redirection via the EVT1 register. Unfortunately, this turned out to be incorrect for the oldest Blackfin parts (BF533-0.2 and older and BF561). No one really noticed earlier because these parts usually are booted by bypassing the bootrom entirely, and older BF533 parts are not supported at all (too many anomalies). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-04-25 03:39:41 +00:00
LDR_FLAGS-y :=
LDR_FLAGS-$(CONFIG_BFIN_BOOTROM_USES_EVT1) += -J
Blackfin: pass --bmode/--initcode when creating ldr Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-08-07 22:55:30 +00:00
LDR_FLAGS += --bmode $(subst BFIN_BOOT_,,$(CONFIG_BFIN_BOOT_MODE))
generate u-boot.ldr for Blackfin targets Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-05 00:26:57 +00:00
LDR_FLAGS += --use-vmas
Blackfin: pass --bmode/--initcode when creating ldr Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-08-07 22:55:30 +00:00
LDR_FLAGS += --initcode $(obj)cpu/$(CPU)/initcode.o
Blackfin: support embedding the environment into loader files (LDRs) For the most part, the Blackfin processor boots files in the LDR format rather than binary/ELF files. So we want to export the environment as a raw blob to the LDR utility so it can embed it at the right location. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-10-06 08:42:33 +00:00
ifneq ($(CONFIG_BFIN_BOOT_MODE),BFIN_BOOT_UART)
ifneq ($(ENV_IS_EMBEDDED_CUSTOM),ENV_IS_EMBEDDED_CUSTOM)
LDR_FLAGS += --punchit $$(($(CONFIG_ENV_OFFSET))):$$(($(CONFIG_ENV_SIZE))):$(obj)env-ldr.o
endif
endif
Blackfin: convert BFIN_CPU to CONFIG_BFIN_CPU Stop tying things to the processor that should be tied to other defines and change BFIN_CPU to CONFIG_BFIN_CPU so that it can be used in the build system to select the -mcpu option. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-18 10:26:48 +00:00
ifneq (,$(findstring s,$(MAKEFLAGS)))
generate u-boot.ldr for Blackfin targets Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2008-02-05 00:26:57 +00:00
LDR_FLAGS += --quiet
endif
Blackfin: fix booting with older bootroms (no EVT1) When dropping jump block support, the assumption was that all bootroms supported entry point redirection via the EVT1 register. Unfortunately, this turned out to be incorrect for the oldest Blackfin parts (BF533-0.2 and older and BF561). No one really noticed earlier because these parts usually are booted by bypassing the bootrom entirely, and older BF533 parts are not supported at all (too many anomalies). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-04-25 03:39:41 +00:00
LDR_FLAGS += $(LDR_FLAGS-y)
Blackfin: unify u-boot linker scripts All the Blackfin linker scripts were duplicated across the board dirs with no difference save from the semi-often used ENV_IS_EMBEDDED option. So unify all of them in the lib_blackfin/ dir and for the few boards that need to embedded the environment directly, add a LDS_BOARD_TEXT define for them to customize via their board config file. This is much simpler than forcing them to duplicate the rest of the linker script. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-14 10:29:07 +00:00
ifeq ($(wildcard $(TOPDIR)/board/$(BOARD)/u-boot.lds*),)
Blackfin: use common code to preprocess linker script Now that the common code preprocesses the linker script, the Blackfin code no longer needs to do it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-08-22 23:50:22 +00:00
LDSCRIPT = $(obj)lib_$(ARCH)/u-boot.lds.S
Blackfin: unify u-boot linker scripts All the Blackfin linker scripts were duplicated across the board dirs with no difference save from the semi-often used ENV_IS_EMBEDDED option. So unify all of them in the lib_blackfin/ dir and for the few boards that need to embedded the environment directly, add a LDS_BOARD_TEXT define for them to customize via their board config file. This is much simpler than forcing them to duplicate the rest of the linker script. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-14 10:29:07 +00:00
endif
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