Commit graph

205 commits

Author SHA1 Message Date
Simon Glass
6bcb8ade30 x86: Use correct printf() format string for uintptr_t
Use the inttypes header file to provide this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-27 11:04:01 -04:00
Gabe Black
0d296cc2d3 Provide option to avoid defining a custom version of uintptr_t.
There's a definition in stdint.h (provided by gcc) which will be more correct
if available.

Define CONFIG_USE_STDINT to use this feature, or USE_STDINT=1 on the 'make'
commmand.

This adjusts the settings for x86 and sandbox, with both have 64-bit options.

Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Tested-by: Gabe Black <gabeblack@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@google.com>
Rewritten to be an option, since stdint.h is often available only in glibc.
Changed to preserve a clear boundary between stdint and non-stdint
Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-27 11:04:01 -04:00
Simon Glass
e98a03ca68 dm: x86: Convert coreboot serial to use driver model
This makes use of the existing device tree node to use driver model
for the serial console.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-23 19:45:45 -06:00
Simon Glass
d1259c9f5f dm: x86: dts: Add additional info to the serial port node
Add more information so that U-Boot can find the address of the serial port.
Also fix the reg-shift value.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-23 19:45:28 -06:00
Simon Glass
c15b0b86d1 dm: x86: Add a gpio header for coreboot
This code doesn't follow the normal approach of having its arch-specific
definitions in an arch-specific directory. Add a new arch-specific file
and make use of it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-23 19:45:28 -06:00
Simon Glass
5dbcaa2128 dm: x86: Support pre-reloc malloc()
Add support for this by reserving a block of memory below global_data.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-23 19:45:28 -06:00
Simon Glass
fbd7282426 dm: x86: Zero global data before board_init_f()
To permit information to be passed from the early U-Boot code to
board_init_f() we cannot zero the global_data in board_init_f(). Instead
zero it in the start-up code.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-23 19:45:28 -06:00
Simon Glass
9c284ffd93 dm: x86: Remove ebp assembler warning in zimage.c
This code generates warnings with recent gcc versions. We really don't need
the clobber specification, so just drop it.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-23 19:45:28 -06:00
Masahiro Yamada
45ccec8f29 kconfig: move CONFIG_USE_PRIVATE_LIBGCC to Kconfig
The private libgcc is supported only on ARM, MIPS, PowerPC, SH, x86.
Those architectures should "select" HAVE_PRIVATE_LIBGCC and
CONFIG_USE_PRIVATE_LIBGCC should depend on it.

Currently, this option is enabled on Tegra boards and x86 architecture.
Move the definition from header files to Kconfig.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@nvidia.com>
Cc: Tom Warren <twarren@nvidia.com>
2014-10-23 13:19:09 -04:00
Masahiro Yamada
dd43fa22de x86: set CONFIG_USE_PRIVATE_LIBGCC to y
The motivation of this commit is to change CONFIG_USE_PRIVATE_LIBGCC
to a boolean macro so we can move it to Kconfig.

In the current implementation, there are two forms of syntax
for this macro:

  - CONFIG_USE_PRIVATE_LIBGCC=y
  - CONFIG_USE_PRIVATE_LIBGCC=path/to/private/libgcc

The latter is only used by x86 architecture.
With a little bit refactoring, it can be converted to the former.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
2014-10-23 13:19:04 -04:00
Simon Glass
6ddc4fd822 x86: Add device tree information for Chrome OS EC
Add the required node describing how to find the EC on link.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-22 21:50:32 -06:00
Bin Meng
35d4fed320 x86: Fix GDT limit in start16.S
GDT limit should be one less than an integral multiple of eight.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-10-22 09:03:07 -06:00
Bin Meng
fb00601ed6 x86: Fix rom version build with CONFIG_X86_RESET_VECTOR
When building U-Boot with CONFIG_X86_RESET_VECTOR, the linking
process misses the resetvec.o and start16.o so it cannot generate
the rom version of U-Boot. The arch/x86/cpu/Makefile is updated to
pull them into the final linking process.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-10-22 09:03:07 -06:00
Simon Glass
97d1e0c850 x86: Allow cmdline setup in setup_zimage() to be optional
If we are passing this using the device tree then we may not want to
set this up here.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-22 09:03:05 -06:00
Simon Glass
0d0ba59ccd x86: Rewrite bootm.c to make it similar to ARM
The x86 bootm code is quite special, and geared to zimage. Adjust it
to support device tree and make it more like the ARM code, with
separate bootm stages and functions for each stage.

Create a function announce_and_cleanup() to handle printing the
"Starting kernel ..." message and put it in bootm so it is in one
place and can be used by any loading code. Also move the
board_final_cleanup() function into bootm.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-22 09:03:05 -06:00
Simon Glass
43e84bf866 x86: Enable LMB and RAMDISK_HIGH by default
These options are used by the image code. To allow us to use the generic
code more easily, define these for x86.

Signed-off-by: Simon Glass <sjg@chromium.org>
2014-10-22 09:03:05 -06:00
Masahiro Yamada
c79cba37b3 cosmetic: replace MIN, MAX with min, max
The macro MIN, MAX is defined as the aliase of min, max,
respectively.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-09-24 18:30:29 -04:00
Masahiro Yamada
461be2f96e kconfig: remove redundant "string" type in arch and board Kconfigs
Now the types of CONFIG_SYS_{ARCH, CPU, SOC, VENDOR, BOARD, CONFIG_NAME}
are specified in arch/Kconfig.

We can delete the ones in arch and board Kconfig files.

This commit can be easily reproduced by the following command:

find . -name Kconfig -a ! -path ./arch/Kconfig | xargs sed -i -e '
/config[[:space:]]SYS_\(ARCH\|CPU\|SOC\|\VENDOR\|BOARD\|CONFIG_NAME\)/ {
    N
    s/\n[[:space:]]*string//
}
'

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-09-13 16:43:55 -04:00
Masahiro Yamada
90f984e397 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 14:42:02 -04:00
Masahiro Yamada
dd84058d24 kconfig: add board Kconfig and defconfig files
This commit adds:
 - arch/${ARCH}/Kconfig
    provide a menu to select target boards
 - board/${VENDOR}/${BOARD}/Kconfig or board/${BOARD}/Kconfig
    set CONFIG macros to the appropriate values for each board
 - configs/${TARGET_BOARD}_defconfig
    default setting of each board

(This commit was automatically generated by a conversion script
based on boards.cfg)

In Linux Kernel, defconfig files are located under
arch/${ARCH}/configs/ directory.
It works in Linux Kernel since ARCH is always given from the
command line for cross compile.

But in U-Boot, ARCH is not given from the command line.
Which means we cannot know ARCH until the board configuration is done.
That is why all the "*_defconfig" files should be gathered into a
single directory ./configs/.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-07-30 08:48:01 -04:00
Simon Glass
709ea543b9 stdio: Pass device pointer to stdio methods
At present stdio device functions do not get any clue as to which stdio
device is being acted on. Some implementations go to great lengths to work
around this, such as defining a whole separate set of functions for each
possible device.

For driver model we need to associate a stdio_dev with a device. It doesn't
seem possible to continue with this work-around approach.

Instead, add a stdio_dev pointer to each of the stdio member functions.

Note: The serial drivers have the same problem, but it is not strictly
necessary to fix that to get driver model running. Also, if we convert
serial over to driver model the problem will go away.

Code size increases by 244 bytes for Thumb2 and 428 for PowerPC.

22: stdio: Pass device pointer to stdio methods
       arm: (for 2/2 boards)  all +244.0  bss -4.0  text +248.0
   powerpc: (for 1/1 boards)  all +428.0  text +428.0

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Marek Vasut <marex@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
2014-07-23 14:07:23 +01:00
Simon Glass
91d0be1dd8 stdio: Remove redundant code around stdio_register() calls
There is no point in setting a structure's memory to NULL when it has
already been zeroed with memset().

Also, there is no need to create a stub function for stdio to call - if the
function is NULL it will not be called.

This is a clean-up, with no change in functionality.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Marek Vasut <marex@denx.de>
2014-07-23 14:07:23 +01:00
Vasili Galka
dbb7234b2a x86: Enable 32-bit build using x86_64 multilib toolchain
Until now building the x86 arch boards required 32-bit toolchain. As
many x86_64 toolchains come with 32-bit support (multilib) that's a
good idea to enable build with such toolchains.

The change required was to specify the usage of 32-bit explicitly to
the compiler and the linker (-m32 and -m elf_i386 flags) and locate
the right libgcc path.

Signed-off-by: Vasili Galka <vvv444@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-06-23 15:37:23 -06:00
Simon Glass
5957ac2a9f Makefile: Support include files for .dts files
Linux supports this, and if we are to have compatible device tree files,
U-Boot should also.

Avoid giving the device tree files access to U-Boot's include/ directory.
Only include/dt-bindings is accessible.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-06-20 11:55:03 -06:00
Masahiro Yamada
254d68b601 kbuild: move asm-offsets.c from SoC directory to arch/$(ARCH)/lib
U-Boot has supported two kinds of asm-offsets.h.

One is generic for all architectures and its source is located at
./lib/asm-offsets.c.

The other is SoC specific and its source is under SoC directory.
The problem here is that only boards with SoC directory can use
the asm-offsets infrastructure.
Putting asm-offsets.c right under CPU directory does not work.

Now a new demand is coming. PowerPC folks want to use asm-offsets.
But no PowerPC boards have SoC directory.

It seems inconsistent that some boards add asm-offsets.c to SoC
directoreis and some to CPU directories.
It looks more reasonable to put asm-offsets.c under arch/$(ARCH)/lib.

This commit merges asm-offsets.c under SoC directories into
arch/$(ARCH)/lib/asm-offsets.c.

By the way, I doubt the necessity of some entries in asm-offsets.c.
I am leaving refactoring to the board maintainers.
Please check "TODO" in the comment blocks in
arch/{arm,nds32}/lib/asm-offsets.c.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Yuantian Tang <Yuantian.Tang@freescale.com>
2014-03-28 15:06:29 -04:00
Masahiro Yamada
c2e5b6a090 x86: specify CONFIG_USE_PRIVATE_LIBGCC more simply
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
2014-03-12 17:04:45 -04:00
Masahiro Yamada
b6e53eb320 kbuild, x86: use a short log for arch/x86/lib/libgcc.a
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
2014-03-12 17:04:42 -04:00
Masahiro Yamada
cd2e46cb38 kbuild: add CONFIG_ prefix to USE_PRIVATE_LIBGCC
Before this commit, USE_PRIVATE_LIBGCC was defined in
arch-specific config.mk and referenced in
arch/$(ARCH)/lib/Makefile.

We are not happy about parsing config.mk again and again.
We have to keep the same behavior with a different way.

By adding "CONFIG_" prefix, this macro appears
in include/autoconf.mk, include/spl-autoconf.mk.
(And treating USE_PRIVATE_LIBGCC as CONFIG macro
is reasonable enough.)

Tegra SoC family defined USE_PRIVATE_LIBGCC as "yes"
in arch/arm/cpu/arm720t/tegra*/config.mk,
whereas did not define it in arch/arm/cpu/armv7/tegra*/config.mk.

It means Tegra enables PRIVATE_LIBGCC only for SPL.
We can describe the same behavior by adding

  #ifdef CONFIG_SPL_BUILD
  # define CONFIG_USE_PRIVATE_LIBGCC
  #endif

to include/configs/tegra-common.h.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
2014-03-07 10:59:06 -05:00
Masahiro Yamada
f694183ba1 x86: Delete redundant compiler flags
-Wstrict-prototypes, -ffreestanding, -fno-stack-protector
are defined at the top Makefile for all architectures.

Do not define them twice for x86.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
2014-03-04 09:27:40 -05:00
Masahiro Yamada
3284c8b8ca dts: generate multiple device tree blobs
It is convenient to have all device trees on the same SoC compiled.
It allows for later easy repackaging without the need to re-run
the make file.

  - Build device trees with the same SoC under arch/$(ARCH)/dts

  - Copy the one specified by CONFIG_DEFAULT_DEVICE_TREE or
    DEVICE_TREE=... to dts/dt.dtb

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:10:05 -05:00
Masahiro Yamada
5ab502cb89 dts: move device tree sources to arch/$(ARCH)/dts/
Unlike Linux Kernel, U-Boot historically had *.dts files under
board/$(VENDOR)/dts/ and *.dtsi files under arch/$(ARCH)/dts/.

I think arch/$(ARCH)/dts dicretory is a better location
to store both *.dts and *.dtsi files.

For example, before this commit, board/xilinx/dts directory
had both Microblaze dts (microblaze-generic.dts) and
ARM dts (zynq-*.dts), which are totally unrelated.

This commit moves *.dts to arch/$(ARCH)/dts/ directories,
allowing us to describe nicely mutiple DTBs generation in the next commit.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:10:05 -05:00
Masahiro Yamada
6ab6b2afa0 dts: re-write dts/Makefile more simply with Kbuild
Useful rules in scripts/Makefile.lib allows us to easily
generate a device tree blob and wrap it in assembly code.

We do not need to parse a linker script to get output format and arch.

This commit deletes ./u-boot.dtb since it is a copy of dts/dt.dtb.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-02-19 11:10:05 -05:00
Masahiro Yamada
9e4140329e kbuild: change out-of-tree build
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 <sub-dir>" 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=<sub-dir>"
syntax for descending into sub-directories.
(We can write it like "make $(obj)=<sub-dir>" with a shorthand.)
This means the current working directory is always the top
of the output directory.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Tested-by: Gerhard Sittig <gsi@denx.de>
2014-02-19 11:07:50 -05:00
Masahiro Yamada
df05ff7789 x86: delete unused header files
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-01-24 16:59:07 -05:00
Masahiro Yamada
0f0f75774e cosmetic: remove empty lines at the top of file
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-11-08 09:41:37 -05:00
Masahiro Yamada
3954b739b3 x86: convert makefiles to Kbuild style
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Simon Glass <sjg@chromium.org>
2013-11-01 11:42:12 -04:00
Wolfgang Denk
3765b3e7bd Coding Style cleanup: remove trailing white space
Signed-off-by: Wolfgang Denk <wd@denx.de>
2013-10-14 16:06:53 -04:00
Wolfgang Denk
cb3761ea99 SPDX-License-Identifier: convert BSD-3-Clause files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini Don't remove some copyrights by accident]
Signed-off-by: Tom Rini <trini@ti.com>
2013-08-19 15:45:35 -04:00
Stephen Warren
065202803d config: don't define CONFIG_ARCH_DEVICE_TREE
Now that nothing uses CONFIG_ARCH_DEVICE_TREE, stop defining it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Simon Glass <sjg@chromium.org>
2013-08-02 18:30:11 -04:00
Wolfgang Denk
1a4596601f 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>
2013-07-24 09:44:38 -04:00
Dirk Eibach
b8eee4354f Build arch/$ARCH/lib/bootm.o depending on CONFIG_CMD_BOOTM
MAKEALL is fine for ppc4xx and mpc85xx.
Run checks were done on our controlcenterd hardware.

Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-07-16 17:44:30 -05:00
Simon Glass
7af26b1669 blackfin: x86: bootm: Handle PREP stage of bootm
The OS function is now always called with the PREP stage. Adjust the
remaining bootm OS functions to deal with this correctly.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-07-12 10:32:39 -04:00
Simon Glass
d8819f94d5 x86: Support tracing function
Some changes are needed to x86 timer functions to support tracing. Add
these so that the feature works correctly.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-06-26 10:18:56 -04:00
Simon Glass
bdc7d5cda3 x86: Correct missing local variable in bootm
Enabling FIT produces a compile error. Fix this.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-06-26 10:16:41 -04:00
Simon Glass
8f0278eab4 x86: Add coreboot timestamps
Add selected coreboot timestamps into bootstage to get a unified view of
the boot timings.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-13 13:33:22 -07:00
Simon Glass
5397d8058c x86: Support adding coreboot timestanps to bootstage
Coreboot provides a lot of useful timing information. Provide a facility
to add this to bootstage on start-up.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-13 13:33:22 -07:00
Simon Glass
d0b6f247a1 x86: Re-enable PCAT timer 2 for beeping
While we don't want PCAT timers for timing, we want timer 2 so that we can
still make a beep. Re-purpose the PCAT driver for this, and enable it in
coreboot.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-13 13:33:21 -07:00
Simon Glass
f9083bbe78 x86: Remove ISR timer
This is no longer used since we prefer the more accurate TSC timer, so
remove the dead code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-05-13 13:33:21 -07:00
Simon Glass
29756d4447 x86: Remove old broken timer implementation
Tidy up some old broken and unneeded implementations. These are not used
by coreboot or anything else now.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Gabe Black <gabeblack@chromium.org>
Reviewed-by: Michael Spang <spang@chromium.org>
Reviewed-by: Vadim Bendebury <vbendeb@chromium.org>
Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-05-13 13:33:21 -07:00
Simon Glass
e761ecdbb8 x86: Add TSC timer
This timer runs at a rate that can be calculated, well over 100MHz. It is
ideal for accurate timing and does not need interrupt servicing.

Tidy up some old broken and unneeded implementations at the same time.

To provide a consistent view of boot time, we use the same time
base as coreboot. Use the base timestamp supplied by coreboot
as U-Boot's base time.

Signed-off-by: Simon Glass <sjg@chromium.org>base
Signed-off-by: Simon Glass <sjg@chromium.org>
2013-05-13 13:33:21 -07:00