Commit graph

80 commits

Author SHA1 Message Date
Simon Glass
db41d65a97 common: Move hang() to the same header as panic()
At present panic() is in the vsprintf.h header file. That does not seem
like an obvious choice for hang(), even though it relates to panic(). So
let's put hang() in its own header.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Migrate a few more files]
Signed-off-by: Tom Rini <trini@konsulko.com>
2020-01-17 17:53:40 -05:00
Simon Glass
c30b7adbca common: Move interrupt functions into a new header
These functions do not use driver model but are fairly widely used in
U-Boot. But it is not clear that they will use driver model anytime soon,
so we don't want to label them as 'legacy'.

Move them to a new irq_func.h header file. Avoid the name 'irq.h' since it
is widely used in U-Boot already.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:25:00 -05:00
Simon Glass
9edefc2776 common: Move some cache and MMU functions out of common.h
These functions belong in cpu_func.h. Another option would be cache.h
but that code uses driver model and we have not moved these cache
functions to use driver model. Since they are CPU-related it seems
reasonable to put them here.

Move them over.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:23:55 -05:00
Simon Glass
6cc915b5fb arm: powerpc: Tidy up code style for cache functions
Remove the unwanted space before the bracket.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:23:14 -05:00
Simon Glass
1045315df0 common: Move get_ticks() function out of common.h
This function belongs in time.h so move it over and add a comment.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2019-12-02 18:23:13 -05:00
Michal Simek
3ad95ed6f8 microblaze: Fix tab indentation in start.S
Use tab instead of spaces.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2019-10-24 13:37:03 +02:00
Simon Goldschmidt
1b1d8c19f5 spl: fix linker size check off-by-one errors
This fixes SPL linker script size checks for 3 lds files where the size
checks were implemented as "x < YYY_MAX_SIZE".

Fix the size checks to be "x <= YYY_MAX_SIZE" instead.

Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
2019-05-05 08:48:50 -04:00
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
Michal Simek
35670665d6 microblaze: Do not call timer init that early
Timer needs to be converted to DM but as of now it can't be called so
early because intc controller is not ready. Call it later in board_r.c.
Before this patch timer_init is called twice which is wrong.
The patch is blocking initialization before relocation.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
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
Tom Rini
d024236e5a Remove unnecessary instances of DECLARE_GLOBAL_DATA_PTR
We have a large number of places where while we historically referenced
gd in the code we no longer do, as well as cases where the code added
that line "just in case" during development and never dropped it.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-27 14:54:48 -04:00
Andy Yan
9eea50162c microblaze: spl: configure SYS_MALLOC_F_LEN independently for SPL and full U-Boot
Some platforms have very limited SRAM to run SPL code, so there may
not be the same amount space for a malloc pool before relocation in
the SPL stage as the normal U-Boot stage.

Make SPL and (the full) U-Boot stage use independent SYS_MALLOC_F_LEN,
so the size of pre-relocation malloc pool can be configured memory
space independently.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Acked-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
[fixed up commit-message:]
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
2017-07-27 14:59:03 +02:00
Vikas Manocha
5bf5250e9d spl: make image arg or fdt blob address reconfigurable
At present fdt blob or argument address being passed to kernel is fixed at
compile time using macro CONFIG_SYS_SPL_ARGS_ADDR. FDT blob from
different media like nand, nor flash are copied to the address pointed
by the macro.
The problem is, it makes args/fdt blob compulsory to copy which is not required
in cases like for NOR Flash. This patch removes this limitation.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
2017-05-08 11:38:40 -04:00
Michal Simek
1d82e2c15c microblaze: Fix endif macro command
Use correct name in endif comment.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2017-02-10 13:59:36 +01:00
Simon Glass
ca12e65caa spl: Add a parameter to jump_to_image_linux()
Instead of using the global spl_image variable, pass the required struct in
as an argument.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
2016-10-06 14:48:19 -04:00
Michal Simek
a359eaa598 microblaze: Remove !OF_CONTROL code for timer and interrupt
OF_CONTROL is enabled by default that's why this is dead code.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-04 20:28:38 +02:00
Michal Simek
9aa65cab73 microblaze: Read information about timer/interrupts from DT
Read information about timer and interrupts from DT. This is the first
small step to move timer and intc to DM.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-04-04 20:28:38 +02:00
Michal Simek
85916e29df microblaze: Remove empty file - cpu.c
No need to have empty unused file in architecture code.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-01-27 15:55:53 +01:00
Michal Simek
48470b7a20 microblaze: Wire-up debug_uart in asm
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2016-01-27 15:55:50 +01:00
Albert ARIBAUD
ecc306639e Fix board init code to respect the C runtime environment
board_init_f_mem() alters the C runtime environment's
stack it is actually already using. This is not a valid
behaviour within a C runtime environment.

Split board_init_f_mem into C functions which do not alter
their own stack and always behave properly with respect to
their C runtime environment.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Acked-by: Thomas Chou <thomas@wytron.com.tw>
2016-01-13 21:05:17 -05:00
Simon Glass
cd2bee3544 microblaze: Add a TODO to call board_init_f_mem()
This C function should be used to do the early memory layout and init. This
is beyond my powers, so just add a TODO for the maintainer.

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
2015-10-24 13:50:37 -04:00
Rob Herring
7682a99826 remove unnecessary version.h includes
Various files are needlessly rebuilt every time due to the version and
build time changing. As version.h is not actually needed, remove the
include.

Signed-off-by: Rob Herring <robh@kernel.org>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Minkyu Kang <mk7.kang@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Tom Warren <twarren@nvidia.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Macpaul Lin <macpaul@andestech.com>
Cc: Wolfgang Denk <wd@denx.de>
Cc: York Sun <yorksun@freescale.com>
Cc: Stefan Roese <sr@denx.de>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Cc: Simon Glass <sjg@chromium.org>
Cc: Philippe Reynes <tremyfr@yahoo.fr>
Cc: Eric Jarrige <eric.jarrige@armadeus.org>
Cc: "David Müller" <d.mueller@elsoft.ch>
Cc: Phil Edworthy <phil.edworthy@renesas.com>
Cc: Robert Baldyga <r.baldyga@samsung.com>
Cc: Torsten Koschorrek <koschorrek@synertronixx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Łukasz Majewski <l.majewski@samsung.com>
2015-03-24 10:50:50 -04:00
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
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
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
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
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
Albert ARIBAUD
ef123c5253 Refactor linker-generated arrays
Refactor linker-generated array code so that symbols
which were previously linker-generated are now compiler-
generated. This causes relocation records of type
R_ARM_ABS32 to become R_ARM_RELATIVE, which makes
code which uses LGA able to run before relocation as
well as after.

Note: this affects more than ARM targets, as linker-
lists span possibly all target architectures, notably
PowerPC.

Conflicts:
	arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds
	arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds
	arch/arm/cpu/armv7/omap-common/u-boot-spl.lds
	board/ait/cam_enc_4xx/u-boot-spl.lds
	board/davinci/da8xxevm/u-boot-spl-da850evm.lds
	board/davinci/da8xxevm/u-boot-spl-hawk.lds
	board/vpac270/u-boot-spl.lds

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
2013-03-12 23:28:40 +01:00
Michal Simek
b3e5cd17f6 microblaze: Fix compilation failure because of missing libdts
Microblaze platform can use CONFIG_OF_EMBED option
but also it is necessary to support boards
which don't want to use this option.
U-Boot doesn't compile dts/libdts.o for #undef CONFIG_OF_EMBED
case that's why it should be guarded by ifdef.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2012-11-08 10:33:19 +01:00
Michal Simek
5811830fae microblaze: Flush caches before enabling them
Flushing caches is necessary because of soft reset
which doesn't clear caches.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Reviewed-by: Marek Vasut <marex@denx.de>
2012-11-07 17:11:14 +01:00
Marek Vasut
8b493a5236 common: Discard the __u_boot_cmd section
The command declaration now uses the new LG-array method to generate
list of commands. Thus the __u_boot_cmd section is now superseded and
redundant and therefore can be removed. Also, remove externed symbols
associated with this section from include/command.h .

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
2012-10-22 08:29:42 -07:00
Marek Vasut
556751427b common: Add .u_boot_list into all linker files
Add section for the linker-generated lists into all possible linker
files, so that everyone can easily use these lists. This is mostly
a mechanical adjustment.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
2012-10-22 08:29:42 -07:00