Commit graph

55 commits

Author SHA1 Message Date
Michal Simek
4a69366967 microblaze: Convert generic platform to DM gpio
Converting GPIO to DM requires to do changes in reset subsystem
that's why support for Microblaze soft reset via sysreset and GPIO
sysreset support was added.
These two patches enables enabling GPIO DM.
Microblaze soft reset is bind at last reset method.

GPIO reset is handled via sysreset with adding this fragment to DT.

gpio-restart {
	compatible = "gpio-restart";
	gpios = <&reset_gpio 0 0 0>;
	/* 3rd cell ACTIVE_HIGH = 0, ACTIVE_LOW = 1 */
};

hard-reset-gpio property is not documented and also handled.
Conversion is required.

Unfortunately do_reset is required for SPL that's why use only soft
microblaze reset for now.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-19 10:49:55 +02:00
Shreenidhi Shedi
35912528a8 microblaze: Cosmetic changes in Microblaze related files
Signed-off-by: Shreenidhi Shedi <yesshedi@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-19 10:49:55 +02:00
Michal Simek
4ab11ecaaa microblaze: Use default implementation from include/linux/io.h
There is no reason not to use default ioremap/iounmap io functions.
The patch remove Microblaze macros.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-07-19 10:49:54 +02:00
Tom Rini
83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00
Paul Burton
dbee715237 microblaze: Use asm-generic/io.h
Convert the microblaze architecture to make use of the new
asm-generic/io.h to provide address mapping functions. As the generic
implementations are suitable for microblaze this is primarily a matter
of removing code.

Feedback from architecture maintainers is welcome.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
2017-10-02 21:52:21 -04:00
Simon Glass
a0b49bc334 efi: Use asmlinkage for EFIAPI
This is required for x86 and is also correct for ARM (since it is empty).

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2016-10-19 09:01:53 +02:00
Masahiro Yamada
4491327d59 Remove arch/${ARCH}/include/asm/errno.h
Unlike Linux, nothing about errno.h is arch-specific in U-Boot.
As you see, all of arch/${ARCH}/include/asm/errno.h is just a
wrapper of <asm-generic/errno.h>.  Actually, U-Boot does not
export headers to user-space, so we just have to care about the
consistency in the U-Boot tree.

Now all of include directives for <asm/errno.h> are gone.
Deprecate <asm/errno.h>.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
2016-09-23 17:56:18 -04:00
Robert P. J. Day
25bab53ab2 Remove unneeded remnants of bcopy().
Since bcopy() is no longer used, delete all remaining references to
it.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
2016-06-06 13:39:18 -04:00
Michal Simek
ac551e3492 microblaze: Move MSR instruction selection to Kconfig
Select MSR instructions via Kconfig instead of xparameters.h.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-06-06 11:23:27 +02:00
Nathan Rossi
e0f21e1cbc microblaze: Fix C99/gnu99 compatiblity for inline functions
'extern inline' is not portable across various C standards. To ensure
compatiblity with various standards/compilers change the functions to
static inline. This is a portable construct and serves as a comparable
definition to 'extern inline' from the gnu90 standard.

Additionally remove the function prototypes as they are not required due
to the functions being declared static and functions are correctly
ordered based on dependence.

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Tom Rini <trini@konsulko.com>
Acked-by: Mans Rullgard <mans@mansr.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-11-19 13:09:41 +01:00
Nathan Rossi
7cb73730c8 microblaze: Fix style issues in header files
Fix various style issues in MicroBlaze header files. Specifically fixing
style voilations including '__inline__', 'foo * bar' and 'void foo ('.

Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Tom Rini <trini@konsulko.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2015-11-19 13:09:41 +01:00
Fabio Estevam
e6e7b7c0ab microblaze: Use the generic bitops headers
The generic bitops headers are required when calling logarithmic
functions, such as ilog2().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2015-11-05 10:52:11 -05:00
Masahiro Yamada
0a9e7ee5bd generic-board: select SYS_GENERIC_BOARD for some architectures
We have done with the generic board conversion for all the boards
of ARC, Blackfin, M68000, MicroBlaze, MIPS, NIOS2, Sandbox, X86.

Let's select SYS_GENERIC_BOARD for those architectures, so we can
tell which architecture has finished the conversion at a glance.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com>
2015-03-28 09:03:08 -04:00
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
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
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
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
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
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
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
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
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
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
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
0f21f98dd4 watchdog: Add support for Xilinx Microblaze watchdog
Watchdog can be used on Microblaze, PPC and Zynq hw designs.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@ti.com>
2013-04-30 11:22:43 +02:00
Simon Glass
1865286466 Introduce generic link section.h symbol files
We create a separate header file for link symbols defined by the link
scripts. It is helpful to have these all in one place and try to
make them common across architectures. Since Linux already has a similar
file, we bring this in even though many of the symbols there are not
relevant to us.

Each architecture has its own asm/sections.h where symbols specifc to
that architecture can be added. For now everything except AVR32 just
includes the generic header.

One change is needed in arch/avr32/lib/board.c to make this conversion
work.

Reviewed-by: Tom Rini <trini@ti.com> (version 5)
Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15 16:13:58 -04:00
Simon Glass
eef5415036 microblaze: Use generic global_data
Move microblaze over to use generic global_data.

Signed-off-by: Simon Glass <sjg@chromium.org>
Tested-by: Michal Simek <monstr@monstr.eu>
2013-02-04 09:05:45 -05:00
Simon Glass
5cb48582ac Add architecture-specific global data
We plan to move architecture-specific data into a separate structure so
that we can make the rest of it common.

As a first step, create struct arch_global_data to hold these fields.
Initially it is empty.

This patch applies to all archs at once. I can split it if this is really
a pain.

Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01 15:07:49 -05:00
Michal Simek
f8c1ed092c microblaze: Remove asm/bitops.h from asm/posix_types.h
The patch
"include/linux/byteorder: import latest endian definitions from linux"
(sha1: eef1cf2d5c)

Introduced a lot of compilation failures with unknow types.
include/linux/byteorder/big_endian.h:45:1: error: unknown type name '__le64'
include/linux/byteorder/big_endian.h: In function '__cpu_to_le64p':
include/linux/byteorder/big_endian.h:47:18: error: '__le64' undeclared (first use in this function)
include/linux/byteorder/big_endian.h:47:18: note: each undeclared identifier is reported only once for each function it appears in
include/linux/byteorder/big_endian.h:47:25: error: expected ';' before '__swab64p'
include/linux/byteorder/big_endian.h: At top level:
include/linux/byteorder/big_endian.h:49:1: error: unknown type name '__le64'
include/linux/byteorder/big_endian.h:53:1: error: unknown type name '__le32'
include/linux/byteorder/big_endian.h: In function '__cpu_to_le32p':
include/linux/byteorder/big_endian.h:55:18: error: '__le32' undeclared (first use in this function)
include/linux/byteorder/big_endian.h:55:25: error: expected ';' before '__swab32p'
include/linux/byteorder/big_endian.h: At top level:
include/linux/byteorder/big_endian.h:57:1: error: unknown type name '__le32'
include/linux/byteorder/big_endian.h:61:1: error: unknown type name '__le16'
...

Removing asm/bitops.h solved this problem.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2012-11-07 17:11:14 +01:00
Michal Simek
ea0122816c microblaze: Fix byteorder for microblaze
Just remove ancient code.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephan Linz <linz@li-pro.net>
Reviewed-by: Marek Vasut <marex@denx.de>
2012-11-07 17:11:14 +01:00
Michal Simek
548ce4bf76 microblaze: Fix compilation warning in ext2_find_next_zero_bit
ext2_find_next_zero_bit must be also static if __swab32 is also static.

Warning:
include/asm/bitops.h:369:22: warning: '__fswab32' is static but
used in inline function 'ext2_find_next_zero_bit'
which is not static [enabled by default]

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephan Linz <linz@li-pro.net>
2012-11-07 17:11:14 +01:00
Simon Glass
74e8456bc1 microblaze: Change bi_baudrate and global data baudrate to int
These don't need to be longs, so change them.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@ti.com>
2012-10-19 15:25:44 -07:00
Michal Simek
2380b8f529 microblaze: Clean microblaze initialization
Move board specific function to board_init function in board/ folder
Remove externs from generic board.c
Use board_init_f function in board.c file.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephan Linz <linz@li-pro.net>
2012-09-11 09:24:58 +02:00
Michal Simek
bcbb046bd5 microblaze: timer: Prepare for device-tree initialization
Fix CONFIG_SYS_HZ usage in board config.

Do not use hardcoded value. Use CONFIG_SYS_HZ instead.
Separate static configuration to single block.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2012-09-11 09:24:58 +02:00
Michal Simek
8706908a25 microblaze: intc: Registering interrupt should return value
Return value to find out if un/registration was succesful.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2012-09-11 09:24:57 +02:00
Michal Simek
b710d9d6c2 microblaze: Add support for device tree driven board configuration
This is minimum code required to be able to use device-tree
for u-boot initialization.
Currently only for device driver initialization.

Linker script change ensures DTB to be aligned
for both options CONFIG_OF_EMBED and CONFIG_OF_SEPARATE.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Stephan Linz <linz@li-pro.net>
CC: Simon Glass <sjg@chromium.org>
2012-09-11 09:24:56 +02:00
Mike Frysinger
47fde91f0c global_data: unify global flag defines
All the global flag defines are the same across all arches.  So unify them
in one place, and add a simple way for arches to extend for their needs.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-08-09 21:46:32 +02:00
Michal Simek
575a3d21f6 microblaze: intc: Clear interrupt code
Clear and prepare for device-tree driven configuration.
Remove CONFIG_SYS_INTC_0 definition
Use dynamic allocation instead of static.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Simon Glass <sjg@chromium.org>
2012-07-10 11:54:06 +02:00
Michal Simek
d6afd6867c microblaze: Add gpio.h
Gpio support is not implemented yet. Adding it because of fdtdec.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2012-07-09 10:44:26 +02:00
Mike Frysinger
50a47d0523 net: punt bd->bi_ip_addr
This field gets read in one place (by "bdinfo"), and we can replace
that with getenv("ipaddr").  After all, the bi_ip_addr field is kept
up-to-date implicitly with the value of the ipaddr env var.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-15 17:32:05 -05:00
Michal Simek
1fbd0c36da microblaze: Fix strict-aliasing rules for in_be32
readl should work with unsigned int instead of unsigned long.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-10-24 07:57:03 +02:00
Anton Staaf
ee729afde3 microblaze: cache: define ARCH_DMA_MINALIGN for DMA buffer alignment
Signed-off-by: Anton Staaf <robotboy@chromium.org>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Michal Simek <monstr@monstr.eu>
2011-10-23 20:50:43 +02:00
Michal Simek
6cdf31124c microblaze: Fix unaligned.h for endians
Also support little endian MB.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Mike Frysinger <vapier@gentoo.org>
2011-10-10 08:54:28 +02:00
Michal Simek
a93c1a171c microblaze: Support flashes on lower addresses
Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-10-10 08:54:20 +02:00
Mike Frysinger
476af299b0 image: push default arch values to arch headers
This pushes the ugly duplicated arch ifdef lists we maintain in various
image related files out to the arch headers themselves.

Acked-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Tested-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-10-05 22:22:15 +02:00
Graeme Russ
9558b48af0 console: Implement pre-console buffer
Allow redirection of console output prior to console initialisation to a
temporary buffer.

To enable this functionality, the board (or arch) must define:
 - CONFIG_PRE_CONSOLE_BUFFER - Enable pre-console buffer
 - CONFIG_PRE_CON_BUF_ADDR - Base address of pre-console buffer
 - CONFIG_PRE_CON_BUF_SZ - Size of pre-console buffer (in bytes)

The pre-console buffer will buffer the last CONFIG_PRE_CON_BUF_SZ bytes
Any earlier characters are silently dropped.
2011-10-05 22:03:09 +02:00
Michal Simek
b777a37c29 microblaze: Fix systems with MSR=0
u-boot BSP generates XILINX_USE_MSR_INSTR macro
even for system with MSR=0. That's why explicitly
check that MSR=1.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-02-15 15:13:24 +01:00
Wolfgang Denk
2e5167ccad Replace CONFIG_RELOC_FIXUP_WORKS by CONFIG_NEEDS_MANUAL_RELOC
By now, the majority of architectures have working relocation
support, so the few remaining architectures have become exceptions.
To make this more obvious, we make working relocation now the default
case, and flag the remaining cases with CONFIG_NEEDS_MANUAL_RELOC.

Signed-off-by: Wolfgang Denk <wd@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>
2010-10-29 21:32:07 +02:00