The link register is stored in R14. ARM assembly code allows to use
the 'lr' name to reference it instead of 'r14' which is not very
meaningful. Do the substitution to ease the reading.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Quoting ARM "RealView Compilation Tools Assembler Guide v4.0":
PUSH and POP are synonyms for STMDB and LDM (or LDMIA), with
the base register sp (r13), and the adjusted address written
back to the base register.
PUSH and POP are the preferred mnemonic in these cases.
Let's follow this recommandation to ease the reading and substitute
LDMIA/STMDB operations with PUSH/POP mnemonics.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Before cleaning a bit further the spear/start.S file, apply a few
cosmetic changes: capital letters, comment indentation and small
rewriting.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Stefan Roese <sr@denx.de>
This comment describes the board state at the moment where we enter
the SPL. The description is entirely wrong; re-write it to fit the
reality.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Stefan Roese <sr@denx.de>
SPL BSS lies in SRAM and is actually initialized to 0 by the SPL in
arch/arm/lib/crt0.S:_main(), which is called by cpu_init_crit.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Stefan Roese <sr@denx.de>
It is clearly stated that board_init_f should *not* call
board_init_r. Indeed, board_init_f should return. The code will
continue through arch/arm/lib/crt0.S which will do more setup before
calling board_init_r.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Make use of "IMAGE_MAX_SIZE" and "IMAGE_TEXT_BASE" rather than
CONFIG_SPL_MAX_SIZE and CONFIG_SPL_TEXT_BASE. This lets us re-use the
same script for both SPL and TPL. Add logic to scripts/Makefile.spl to
pass in the right value when preprocessing the script.
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Jagan Teki <jagan@openedev.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Andreas Bießmann <andreas@biessmann.org>
Cc: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Cc: York Sun <york.sun@nxp.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Adam Ford <aford173@gmail.com>
Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Tested-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Tested-by: Adam Ford <aford173@gmail.com> #da850evm & omap3_logic_somlv
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
The interruption support had be removed for ARM architecture and
the function get_timer_masked() is no more used except in some
the timer.c files.
This patch clean each timer.c which implement this function and
remove the associated prototype in u-boot-arm.h
For timer.c, I don't verify if the weak version of get_timer
(in lib/time.c) can be used
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
The interruption support had be removed for ARM architecture and
the function udelay_masked() is no more used except in some timer.c
files and have the same content than udelay() or __udelay().
This patch update each timer.c implementing this function and
remove the associated prototype in u-boot-arm.h.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
SPI controllers SSP1, 2 and 3 require to enable their respective clocks.
Let's enable them only when the SPI controller driver is built.
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
There are multiple GPIOs that can be used with the same driver depending
on the CONFIG_GPIO_BASE defined in the controller driver.
GPIO3 and 4 require a clock to be enabled so let's enable them when the
driver is built.
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
Four different boards had different options for enabling cache
that were virtually all the same. This consolidates these
common functions into arch/arm/cpu/arm926ejs/cache.c
This also has the positive side-effect of enabling cache on
the Davinci (da850) boards.
Signed-off-by: Adam Ford <aford173@gmail.com>
[trini: Add mach-at91 to the list of consolidations]
Signed-off-by: Tom Rini <trini@konsulko.com>
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>
In order that we can use eth_env_* even when CONFIG_NET isn't set, move
these functions to environment code from net code.
This fixes failures such as:
board/ti/am335x/built-in.o: In function `board_late_init':
board/ti/am335x/board.c:752: undefined reference to `eth_env_set_enetaddr'
u-boot/board/ti/am335x/board.c:766: undefined reference to `eth_env_set_enetaddr'
which caters for use cases such as:
commit f411b5cca4 ("board: am335x: Always set eth/eth1addr environment
variable")
when Ethernet is required in Linux, but not U-Boot.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
do_switch_ecc() calls fsmc_nand_switch_ecc(), which is a direct
function call into drivers/mtd/nand/fsmc_nand.c. However, this
function is not guarded by CONFIG_NAND_FSMC, which results to a build
failure if CONFIG_NAND_FSMC is disabled.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
The code in board/spear/common/ is not board-specific but
SoC-specific. Therefore, boards from other vendors than "spear" may
want to re-use this code, which is currently difficult with the code
being placed in board/spear/common/.
Since this code really is SoC-specific, this commit moves it to
arch/arm/cpu/arm926ejs/spear/, with the rest of the SPEAr related
code.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
There are a few options which use lower case. We should use upper case for
all CONFIG options.
Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Add usbtty/nand hunk to include/configs/spear3xx_evb.h]
Signed-off-by: Tom Rini <trini@konsulko.com>
This patch adds the "nandecc" command to switch between the SPEAr600 internal
1-bit HW ECC and the 4-bit SW BCH4 ECC. This can be needed to support NAND
chips with a stronger ECC than 1-bit, as on the x600. And to dynamically
switch between both ECC schemes for backwards compatibility.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
The designware ethernet driver supports d-cache now. So there is nothing
stopping us now to enable the caches completely on SPEAr.
Tested on SPEAr600 x600 board.
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Vipin Kumar <vk.vipin@gmail.com>
The SPL implementation for SPEAr600 is older than the common SPL
infrastructure. This patch now moves the SPEAr600 SPL over to the
common SPL code.
Tested on the only SPEAr board that currently uses SPL in mainline
U-Boot, the x600.
Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Vipin Kumar <vk.vipin@gmail.com>
USB EHCI on SPEAr600 has not been tested for a while. The base controller
addresses are missing. This patch adds the defines to the header. And adds
the missing code.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Vipin Kumar <vk.vipin@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Move this to Kconfig and clean up board config files that use it. Also
rename it to CONFIG_ETH_DESIGNWARE to fit with the naming that exists
in drivers/net/Kconfig.
Signed-off-by: Simon Glass <sjg@chromium.org>
Version 1:
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
In preparation for the SoCFPGA support of the designware I2C driver,
convert this driver to the common CONFIG_SYS_I2C framework.
This patch converts all users of this driver, this is:
- ST spearxxx boards
- AXS101 (ARC700 platform)
I couldn't test this patch on those boards. Only compile tested for all
spear boards. And tested on SoCFPGA.
Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Tested-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Vipin Kumar <vk.vipin@gmail.com>
Cc: Jeroen Hofstee <jeroen@myspectrum.nl>
Exception handling is basically identical for all ARM targets.
Factorize it out of the various start.S files and into a
single vectors.S file, and adjust linker scripts accordingly.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
This prevents references to _end from generating absolute
relocation records.
This change is binary invariant for ARM targets.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Current LDS files /DISCARD/ a lot of sections when linking ELF
files, causing diagnostic tools such as readelf or objdump to
produce partial output. Keep all section at link stage, filter
only at objcopy time so that .bin remains minimal.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Note1:
In arch/arm/cpu/arm926ejs/spear/Makefile
START := start.o
was changed
extra-$(CONFIG_SPL_BUILD) := start.o
because spear/start.o is only used for SPL.
Note2:
START := start.o
was missing from arch/arm/cpu/arm926ejs/mxs/Makefile.
This commit simply adds
extra-$(CONFIG_SPL_BUILD) := start.o
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Discard all .dynsym sections from linker scripts
Remove all __dynsym_start definitions from linker scripts
Remove all __dynsym_start references from the codebase
Note: this touches include/asm-generic/sections.h, which
is not ARM-specific, but actual uses of __dynsym_start
are only in ARM, so this patch can safely go through
the ARM repository.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Tested-by: Lubomir Popov <lpopov@mm-sol.com>
Tested-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Delete all occurrences of hang() and provide a generic function.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
Acked-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
[trini: Modify check around puts() in hang.c slightly]
Signed-off-by: Tom Rini <trini@ti.com>
Let all ARM linker scripts handle properly -ffunction-sections
and -fdata-sections. This will be useful for future changes in order to create
symbol-specific sections in common .S files.
Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
'bool' is defined in random places. This patch consolidates them into a
single header file include/linux/types.h, using stdbool.h introduced in C99.
All other #define, typedef and enum are removed. They are all consistent with
true = 1, false = 0.
Replace FALSE, False with false. Replace TRUE, True with true.
Skip *.py, *.php, lib/* files.
Signed-off-by: York Sun <yorksun@freescale.com>
Albert's rework of the linker scripts conflicted with Simon's making
everyone use __bss_end. We also had a minor conflict over
README.scrapyard being added to in mainline and enhanced in
u-boot-arm/master with proper formatting.
Conflicts:
arch/arm/cpu/ixp/u-boot.lds
arch/arm/cpu/u-boot.lds
arch/arm/lib/Makefile
board/actux1/u-boot.lds
board/actux2/u-boot.lds
board/actux3/u-boot.lds
board/dvlhost/u-boot.lds
board/freescale/mx31ads/u-boot.lds
doc/README.scrapyard
include/configs/tegra-common.h
Build tested for all of ARM and run-time tested on am335x_evm.
Signed-off-by: Tom Rini <trini@ti.com>
Note this is a tree-wide change affecting multiple architectures.
At present we use __bss_start, but mostly __bss_end__. This seems
inconsistent and in a number of places __bss_end is used instead.
Change to use __bss_end for the BSS end symbol throughout U-Boot. This
makes it possible to use the asm-generic/sections.h file on all
archs.
Signed-off-by: Simon Glass <sjg@chromium.org>
Many SPL linker scripts needlessly include linker lists (aka LGAs).
Remove them whenever possible; keep it only in the seven am335x_evm
variants (am335x_evm, am335x_evm_uart[1-5], am335x_evm_spiboot),
where there is actual content in output section .u_boot_list.
This commit keeps all u-boot.bin and u-boot-spl.bin in ARM targets
byte-identical.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
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>
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>
This patch adds SPL support for SPEAr600. Currently only SNOR
(Serial NOR) flash support is included. Other boot devices
(NAND, MMC, USB ...) may be added with later patches.
Tested on the STM SPEAr600 evaluation and x600 SPEAr600 boards.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Amit Virdi <amit.virdi@st.com>
Cc: Vipin Kumar <vipin.kumar@st.com>
UART in u-boot intends to run on 48MHz clock supplied by USB PLL.
Explicitly select the intended clock source.
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
Earlier, architecture specific init code was mixed with board initialization
code in board/spear/... This patch updates architecture support for SPEAr in
latest u-boot and prints the SoC information.
Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Amit Virdi <amit.virdi@st.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
The top level Makefile does not do any recursion into subdirs when
cleaning, so these clean/distclean targets in random arch/board dirs
never get used. Punt them all.
MAKEALL didn't report any errors related to this that I could see.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
In some circumstances, reset_timer_masked() was called be timer_init() in
order to perform architecture specific timer initialisation. In such
cases, the required code in reset_timer_masked() has been moved into
timer_init()
