u-boot.git/arch/sparc, branch v2014.04

usb: create common header virtual root hub descriptors

2014-03-10T17:53:36Z

Many USB host controller drivers contain almost identical copies of the same virtual root hub descriptors. Put these into a common file to avoid duplication. Note that there were some very minor differences between the descriptors in the various files, such as: - USB 1.0 vs. USB 1.1 - Manufacturer/Device ID - Max packet size - String content I assume these aren't relevant. Cc: Thomas Lange Cc: Shinya Kuribayashi Cc: Gary Jennejohn Cc: Wolfgang Denk Cc: Eric Millbrandt Cc: Pierre Aubert Cc: Stefan Roese Cc: Daniel Hellstrom Cc: Denis Peter Cc: Rodolfo Giometti Cc: Zhang Wei Cc: Mateusz Zalega Cc: Remy Bohmer Cc: Markus Klotzbuecher Cc: Minkyu Kang Cc: Gary Jennejohn Cc: C Nauman Cc: David Müller Cc: Yoshihiro Shimoda Cc: Nobuhiro Iwamatsu Cc: Thomas Abraham Cc: Tom Rini Cc: Andrew Murray Cc: Matej Frančeškin Cc: Cliff Cai Cc: Bryan Wu Signed-off-by: Stephen Warren

kbuild: improve Kbuild speed

2014-03-07T15:59:06Z

Kbuild brought about many advantages for us but a significant performance regression was reported by Simon Glass. After some discussions and analysis, it turned out its main cause is in $(call cc-option,...). Historically, U-Boot parses all config.mk (arch/*/config.mk and board/*/config.mk) every time descending into subdirectories. That means cc-options are evaluated over and over again. $(call cc-option,...) is useful but costly. So we want to evaluate them only in ./Makefile and spl/Makefile and export compiler flags. This commit changes the build system as follows: - Modify scripts/Makefile.build to not include config.mk Instead, add $(PLATFORM_CPPFLAGS) to asflags-y, ccflags-y, cppflags-y. - Export many variables Going forward, Kbuild will not parse config.mk files when it descends into subdirectories. If we want to set variables in config.mk and use them in subdirectories, they must be exported. This is the list of variables to get exported: PLATFORM_CPPFLAGS CPUDIR BOARDDIR OBJCOPYFLAGS LDFLAGS LDFLAGS_FINAL (used in nand_spl/board/*/*/Makefile) CONFIG_STANDALONE_LOAD_ADDR (used in examples/standalone/Makefile) SYM_PREFIX (used in examples/standalone/Makefile) RELFLAGS (used in examples/standalone/Makefile) - Delete CPPFLAGS This variable has been replaced with PLATFORM_CPPFLAGS - Copy gcclibdir from example/standalone/Makefile to arch/sparc/config.mk The reference in CONFIG_STANDALONE_LOAD_ADDR must be resolved before it is exported. Signed-off-by: Masahiro Yamada Reported-by: Simon Glass Acked-by: Simon Glass Tested-by: Simon Glass [on Sandbox] Tested-by: Stephen Warren [on Tegra]

config.mk: specify the exact path to standalone linker script

2014-03-07T15:59:06Z

We want to change the build system to include config.mk only from ./Makefile and spl/Makefile. We must prepare for that in this commit. $(src) is a moving target and not handy for our purpose. We must replace it with a fixed path. Signed-off-by: Masahiro Yamada

kbuild: fix CROSS_COMPILE settings in config.mk

2014-03-04T17:15:30Z

The syntax CROSS_COMIPLE ?= 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 := endif Signed-off-by: Masahiro Yamada

kbuild: change out-of-tree build

2014-02-19T16:07:50Z

This commit changes the working directory where the build process occurs. Before this commit, build process occurred under the source tree for both in-tree and out-of-tree build. That's why we needed to add $(obj) prefix to all generated files in makefiles like follows: $(obj)u-boot.bin: $(obj)u-boot Here, $(obj) is empty for in-tree build, whereas it points to the output directory for out-of-tree build. And our old build system changes the current working directory with "make -C " syntax when descending into the sub-directories. On the other hand, Kbuild uses a different idea to handle out-of-tree build and directory descending. The build process of Kbuild always occurs under the output tree. When "O=dir/to/store/output/files" is given, the build system changes the current working directory to that directory and restarts the make. Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=" syntax for descending into sub-directories. (We can write it like "make $(obj)=" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada Tested-by: Gerhard Sittig

sparc: Correct arch/sparc/cpu/leon3/start.S from SPDX conversion

2013-11-25T15:41:55Z

The SPDX tag conversion ate part of this file, put things back to the way they should be. Signed-off-by: Tom Rini

include: delete include/linux/config.h

2013-11-08T20:25:13Z

Linux Kernel abolished include/linux/config.h long time ago. (around version v2.6.18..v2.6.19) We don't need to provide Linux copatibility any more. This commit deletes include/linux/config.h and fixes source files not to include this. Signed-off-by: Masahiro Yamada

sparc: include config.h to start.S

2013-11-08T14:38:24Z

arch/sparc/cpu/leon3/start.S requires CONFIG_SYS_SPARC_NWINDOES to be defined: #ifndef CONFIG_SYS_SPARC_NWINDOWS #error Must define number of SPARC register windows, default is 8 #endif But it missed to include , which always ended up in compile error. This commit fixes this problem. Signed-off-by: Masahiro Yamada Cc: Daniel Hellstrom

sparc: convert makefiles to Kbuild style

2013-10-31T17:26:45Z

Signed-off-by: Masahiro Yamada Cc: Daniel Hellstrom

sparc: fix a link error

2013-10-31T17:26:44Z

Before this commit, arch/sparc/lib/Makefile used both COBJS and COBJS-y. And it missed to add COBJS-y into OBJS. This means bootm.o was never compiled even if CONFIG_CMD_BOOTM=y Signed-off-by: Masahiro Yamada Cc: Daniel Hellstrom