kbuild: Discend into SOC directory from CPU directory

Only some CPUs of some architectures have an SOC directory.

It seems reasonable to descend into the SOC directory
from one-level upper, CPU directory rather than from the top
Makefile.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
x86: use CONFIG_SYS_COREBOOT to desend into coreboot/ directory

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
sh: use more descriptive prompts for board select menu

This information was taken mostly from arch/sh/boards/*
of Linux Kernel.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
sh: move CONFIG_{SH2,SH2A,SH3,SH4} to Kconfig

This commit moves CONFIG_SH2, CONFIG_SH2A, CONFIG_SH3, CONFIG_SH4
to Kconfig renaming into CONFIG_CPU_SH2, CONFIG_CPU_SH2A,
CONFIG_CPU_SH3, CONFIG_CPU_SH4, respectively because
arch/sh/Kconfig of Linux uses CONFIG_CPU_SH* convention.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
sh: consolidate CONFIG_SYS_CPU defines

Now each board selects one of CONFIG_CPU_SH2, CONFIG_CPU_SH3,
CONFIG_CPU_SH4, so let's move CONFIG_SYS_CPU definiton to
arch/sh/Kconfig.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
sh: define CONFIG_CPU_SH4A for some boards

Precisely, these boards are SH4A rather than SH4
although CONFIG_CPU_SH4A macro is not referenced at all.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
sh: move -m options to arch/sh/config.mk

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
generic-board: make compile-time noise for non-generic boards

Commit 0f605c1501f6 (Start the deprecation process for generic board)
added a run-time warning message.  Let's be noisier for non-generic
boards to inform the dead line of the conversion.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Marek Vasut <marex@denx.de>
Cc: Tom Rini <trini@ti.com>
Cc: Simon Glass <sjg@chromium.org>
Series-cc: Vagrant Cascadian <vagrant@debian.org>
Series-version: 2
Series-changes: 2
  - Mention to see doc/README.generic-board
dm: do not check dm_root before searching in uclass_root

The function uclass_find() looks for a uclass in the linked
list of gd->uclass_root; gd->dm_root has nothing to do with
gd->uclass_root.  Remove this confusing code.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
dm: minor coding style fixes
kconfig: add CONFIG_CROSS_COMPILE

Copy from Linux Kernel (with a few adjustments in comments).
kbuild: Use relative path when possible

Import 3 useful commits by Michal Marek <mmarek@suse.cz>
from Linux 3.16-rc1.

  commit 9da0763bdd82572be243fcf5161734f11568960f
  kbuild: Use relative path when building in a subdir of the source tree

  commit 890676c65d699db3ad82e7dddd0cf8fb449031af
  kbuild: Use relative path when building in the source tree

  commit 7e1c04779efd51154baf652e653ceb24ce68939b
  kbuild: Use relative path for $(objtree)

mkconfig and tools/Makefile must be adjusted to use relative path
for srctree.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
kbuild: collect useful commands into scripts/Makefile.lib
aaaa
move blackfin specific objcopy rules
include/configs: Do not use $(BOARDDIR)
IMX: Rename IMX image "SPL" to something else for Cygwin

I am not sure how much effort we should make
for building U-Boot on Cygwin.

Anyway, other than host programs, I notice file name problem.

Unlike Unix or Linux, on Windows upper/lower cases for file names
are not distinguished.

On Cygwin, for example, we cannot do this:

  $ mkdir abc
  $ mkdir ABC
  mkdir: cannot create directory `ABC': File exists

It causes some problems in U-Boot too.

For example,

  $ make mrproper
    CLEAN   SPL
  rm: cannot remove `SPL': Is a directory
  Makefile:1278: recipe for target 'clobber' failed
  make: *** [clobber] Error 1

  $ make qong_config
  Configuring for qong board...

  $ make clean
    CLEAN   arch/arm/imx-common
  rm: cannot remove `arch/arm/imx-common/../../../SPL': Is a directory
  scripts/Makefile.clean:79: recipe for target '__clean' failed
  make[1]: *** [__clean] Error 1
  Makefile:1256: recipe for target '_clean_arch/arm/imx-common' failed
  make: *** [_clean_arch/arm/imx-common] Error 2

I notice at least one file name conflict at the top directory.

  SPL - image for IMX
  spl - directory where SPL is built

This commit renames the former to a temporary name.

I guess there is few developers testing U-Boot on Cygwin.
If Cygwin support is mandatory, please consider to rename IMX image.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Series-cc: Tom Rini <trini@ti.com>
Series-cc: Vasili Galka <vvv444@gmail.com>
Series-cc: Jeroen Hofstee <dasuboot@myspectrum.nl>
Series-to: uboot
Series-prefix: RFC
patman,buildman: remove redundant readlines() method

In Python, file objects can be used directly in iterators
without readlines() method.

The behavior is the same but it generally saves memory
without readlines().

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
patman: use raw strings for regular expression

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
buildman: Do not parse git aliase file