Commit graph

137 commits

Author SHA1 Message Date
Michal Simek
7f33899221 microblaze: spl: Add LISTS to linker script
This is required for driver model.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:13:12 +01:00
Michal Simek
ca7d22662e microblaze: spl: Do not call mem_malloc_init and use early alloc
This patch has some parts connected together:
- Use _gd in bss section which is automatically cleared
  Location at SPL_MALLOC_END wasn't cleared at all
- Use MALLOC_F_LEN(early alloc) instead of FULL MALLOC
  (mem_malloc_init is not called at all)
- Simplify malloc and stack init.
  At the end of SPL addr is malloc area and below is stack

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:13:12 +01:00
Michal Simek
405e651d70 microblaze: Add support for CONFIG_SYS_MALLOC_F_LEN
Create space for dm_init where calloc is called
and malloc_base has to be initialized.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:13:12 +01:00
Michal Simek
0510b14b73 microblaze: Do not use CONFIG_SYS_GENERIC_GLOBAL_DATA
Because it is not compatible with DM where
malloc_base has to be available early and init
has to be done in ASM.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:13:12 +01:00
Michal Simek
7c4dd54255 microblaze: Speedup code copy
Remove one instruction in the loop which speedup
code copying.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:12:46 +01:00
Michal Simek
e945f6dc28 microblaze: Move architecture to use generic board init
Compile code with -fPIC to get GOT. Do not build SPL
with fPIC because it increasing SPL size for nothing.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:11:56 +01:00
Michal Simek
9cef20b109 microblaze: Fix gd_t address which is placed at the end of BRAM
Setup gd from ASM to be availalbe for board_init_r.
Setting it up in spl_board_init is too late when
MALLOC is used.
Space for gd is located behind MALLOC area at the end of BRAM.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:58 +01:00
Michal Simek
e4a4743e48 microblaze: Remove unused asm label
It is not used at all that's why remove it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:58 +01:00
Michal Simek
2c7c32fa7f microblaze: Use standard interrupt_init() function
Do not use microblaze specific interrupt init function.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:58 +01:00
Michal Simek
7c6814f184 microblaze: Remove unneeded data section adding from DTB
DTB is added to rodata section:
  [ 2] .rodata           PROGBITS        84c5b60c 05c60c 00c618 00   A
0   0  4
  [ 3] .dtb.init.rodata  PROGBITS        84c67c30 068c30 003c80 00   A
0   0 16
  [ 4] .rela.dyn         RELA            84c6b8b0 06c8b0 000534 0c   A
0   0  4
  [ 5] .data             PROGBITS        84c6bde4 06cde4 001536 00  WA
0   0 16

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:57 +01:00
Michal Simek
070b8e0da2 microblaze: Add debug message about enabling interrupts
Add one more debug message about enabling global interrupts.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:57 +01:00
Michal Simek
e217b0d50d microblaze: Fix coding style
No functional changes just to pass checkpatch.pl.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:57 +01:00
Michal Simek
4c0922f367 microblaze: Remove DEBUG_INT macro and use debug() instead
Do not use specific macros for debugging.
Also remove compilation warning:
w+../arch/microblaze/cpu/interrupts.c: In function 'interrupt_handler':
w+../arch/microblaze/cpu/interrupts.c:153:2: warning: format '%x'
expects argument of type 'unsigned int', but argument 2 has type 'void
(*)(void *)' [-Wformat]
w+../arch/microblaze/cpu/interrupts.c:153:2: warning: format '%x'
expects argument of type 'unsigned int', but argument 4 has type 'void
*' [-Wformat]

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:57 +01:00
Michal Simek
5e2fc801ff microblaze: Fix coding style in exception.c
Just coding style cleanup - no functional changes.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:56 +01:00
Michal Simek
1c424d2697 microblaze: Show return address from exception
Show also return address from exception which should
suggest where the problem is.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:56 +01:00
Michal Simek
cd8574c0a7 microblaze: Fix stack usage in interrupt handler
Do not save registers below r1 stack pointer because
it is not checked by stack undeflow is not able to detect
it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-02-09 15:09:56 +01:00
Michal Simek
da931af1b5 microblaze: Support stack protection feature
Ensure that stack didn't rewrite important part
of u-boot.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-21 10:33:07 +01:00
Michal Simek
822d43a6d9 microblaze: Enable hardware exception by default
Enable hardware exception by default to be able to
handle it.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-01-21 10:20:36 +01:00
Daniel Schwierzeck
e19db555b4 Kbuild: introduce Makefile in arch/$ARCH/
Introduce a Makefile under arch/$ARCH/ and include it in the
top Makefile (similar to Linux kernel). This allows further
refactoringi like moving architecture-specific code out of global
makefiles, deprecating config variables (CPU, CPUDIR, SOC) or
deprecating arch/$ARCH/config.mk.

In contrary to Linux kernel, U-Boot defines the ARCH variable by
Kconfig, thus the arch Makefile can only included conditionally
after the top config.mk.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Acked-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2014-12-08 09:35:45 -05:00
Masahiro Yamada
02627356b6 kconfig: add CONFIG_SUPPORT_SPL
CONFIG_SPL should not be enabled for boards that do not have SPL.
CONFIG_SUPPORT_SPL introduced by this commit should be "select"ed
by boards with SPL support and CONFIG_SPL should depend on it.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-10-27 17:54:10 -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
Vasili Galka
c6fcb603a2 microblaze: Fix printf size_t format related warnings (again...)
The basic idea: Define size_t using the __SIZE_TYPE__ compiler-defined
type.

For detailed explanation see similar patch for the nios2 arch:
"nios2: Fix printf size_t format related warnings (again...)"
(sha1: 00a2517fcb)

Signed-off-by: Vasili Galka <vvv444@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-09-09 09:58:36 +02:00
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
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
dbe963ae51 fdt_support: delete force argument of fdt_initrd()
After all, we have realized "force" argument is completely
useless. fdt_initrd() was always called with force = 1.

We should always want to do the same thing
(set appropriate value to the property)
even if the property already exists.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Acked-by: Simon Glass <sjg@chromium.org>
2014-06-19 11:18:47 -04:00
Masahiro Yamada
8e2615752e bd_info: remove bi_barudrate member from struct bd_info
gd->bd->bi_baudrate is a copy of gd->baudrate.

Since baudrate is a common feature for all architectures,
keep gd->baudrate only.

It is true that bi_baudrate was passed to the kernel in that structure
but it was a long time ago.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Tom Rini <trini@ti.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Acked-by: Michal Simek <monstr@monstr.eu> (For microblaze)
2014-05-12 15:19:45 -04:00
Masahiro Yamada
323762e54a kbuild: delete redundant LDSCRIPT definition
$(SRCTREE)/$(CPUDIR)/u-boot.lds is our default location
of arch-specific linker script.

Remove redundant definitions in
arch/{arc,microblaze,openrisc}/config.mk.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
Acked-by: Michal Simek <monstr@monstr.eu>
2014-03-12 17:04:46 -04:00
Masahiro Yamada
9b6e2c363f 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>
2014-03-04 12:15:30 -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
56746d8010 microblaze: remove an empty file arch/microblaze/lib/time.c
Commit 779bf42c moved timer functions from
arch/microblaze/lib/time.c to arch/microblaze/cpu/timer.c.

But the empty file, arch/microblaze/lib/time.c
has been remaining probably for a human mistake.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Michal Simek <michal.simek@xilinx.com>
2014-02-19 10:47:47 -05:00
Michal Simek
9d24274509 microblaze: Add SPL support
Add support for U-BOOT SPL. NOR and RAM mode are supported.
There are 3 images in NOR flash. u-boot.img, dtb and kernel.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-02-04 16:39:50 +01:00
Michal Simek
ef2c1d8583 microblaze: Report priviledged or stack protection exception
Just list one more exception.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-02-04 16:39:25 +01:00
Michal Simek
6ba64f24a4 microblaze: Show u-boot banner
It is nice to see u-boot version.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2014-02-04 16:39:25 +01:00
Masahiro Yamada
e2906a5943 Makefile: rename all libraries to built-in.o
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-11-17 14:11:32 -05:00
Masahiro Yamada
643aae1406 include: delete include/linux/config.h
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 <yamada.m@jp.panasonic.com>
2013-11-08 15:25:13 -05:00
Masahiro Yamada
a71a36f692 microblaze: convert makefiles to Kbuild style
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Michal Simek <michal.simek@xilinx.com>
2013-10-31 13:26:45 -04:00
Michal Simek
8c4dba1a5e microblaze: Fix watchdog initialization
The patch:
"blackfin: Move blackfin watchdog driver out of the blackfin arch folder."
(sha1: e9a389a184)
changed hw_watchdog_init() prototype which didn't match
with Microblaze one.
This patch fixes the driver and Microblaze initialization.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-10-16 09:24:38 -04:00
Wolfgang Denk
d4c8aa9cb4 Coding Style cleanup: remove trailing empty lines
Signed-off-by: Wolfgang Denk <wd@denx.de>
2013-10-14 16:06:54 -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
Michal Simek
07a16f2a9c microblaze: Call spi_init function
Initialization spi.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephan Linz <linz@li-pro.net>
Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2013-08-08 18:58:11 +05:30
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
Andreas Bießmann
2cb0e55a3c avr32/m68k/microblaze/nds32/nios2/openrisc/sh/sparc: fix do_bootm_linux
Commit 35fc84fa1f broke bootm on avr32. It
requires to call do_bootm_linux() with flag set to BOOTM_STATE_OS_PREP before
calling it again with flag set to BOOTM_STATE_OS_GO.
Fix this by allowing flag set to BOOTM_STATE_OS_PREP, this however will
require a complete refactoring later on.

Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
[trini: Apply to m68k, microblaze, nds32, nios2, openrisc, sh and sparc]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-02 09:17:17 -04:00
Simon Glass
983c72f479 Clarify bootm OS arguments
At present the arguments to bootm are processed in a somewhat confusing
way. Sub-functions must know how many arguments their calling functions
have processed, and the OS boot function must also have this information.
Also it isn't obvious that 'bootm' and 'bootm start' provide arguments in
the same way.

Adjust the code so that arguments are removed from the list before calling
a sub-function. This means that all functions can know that argv[0] is the
first argument of which they need to take notice.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-06-26 10:16:41 -04:00
Michal Simek
4e779ad2e5 gpio: Add support for microblaze xilinx GPIO
Microblaze uses gpio which is connected to the system reset.
Currently gpio subsystem wasn't used for it.

Add gpio driver and change Microblaze reset logic to be done
via gpio subsystem.

There are various configurations which Microblaze can have
that's why gpio_alloc/gpio_alloc_dual(for dual channel)
function has been introduced and gpio can be allocated
dynamically.

Adding several gpios IP is also possible and supported.

For listing gpio configuration please use "gpio status" command

This patch also remove one compilation warning:
microblaze-generic.c: In function 'do_reset':
microblaze-generic.c:38:47: warning: operation on '*1073741824u'
 may be undefined [-Wsequence-point]

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-05-09 11:20:08 +02:00
Michal Simek
a8425d5288 microblaze: bootm: Add support for loading initrd
fdt_initrd add additional information to DTB about initrd
addresses which are later used by kernel.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-05-09 11:13:44 +02:00
Michal Simek
1e71fa4369 microblaze: bootm: Fix coding style issues
Prepare place for new patch.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2013-05-09 11:11:57 +02:00