Monitor protection region in FLASH did not cover .rel.dyn
and .dynsym sections, because it uses __bss_start to compute
monitor_flash_len. Use _end instead.
Add _end to linker scripts for end of u-boot image
Add _end_ofs to all the start.S.
Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Currently, _end is used for end of BSS section. We want _end to mean
end of u-boot image, so we rename _end to __bss_end__ first.
Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
Reuse the gd->tbl value for timestamp and add gd->lastinc for lastinc bss
values in the arm926ejs timers implementation.
The usage of bss values in drivers before initialisation of bss is forbidden.
In that special case some data in .rel.dyn gets corrupted.
This patch is similiar to the patch Dirk Behme posted
for the armv7/omap-common/timer.c and added suggestions
from Reinhard Meyer.
Tested on the arm926ejs mx27 based magnesium board
Tested on the arm926ejs kirkwood based suen3 board
Signed-off-by: Heiko Schocher <hs@denx.de>
cc: Albert ARIBAUD <albert.aribaud@free.fr>
cc: Prafulla Wadaskar <prafulla@marvell.com>
cc: Stefano Babic <sbabic@denx.de>
cc: Reinhard Meyer <u-boot@emk-elektronik.de>
The option CONFIG_SOC_DM6447 seems to have ended up
in the code by mistake. It is not used anywhere and
there is no chip called DM6447.
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Added arch/arm/cpu/arm926ejs/davinci/et1011c.c for handling
ET1011C gigabit phy. which overrides get_link_speed function
from default implementation. This enables output of 125 MHz
reference clock on SYS_CLK pin.
Signed-off-by: Prakash PM <prakash.pm@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
The include/miiphy.h header duplicates a lot of things from linux/mii.h.
So punt all the things that overlap to keep the API simple and to make
merging between U-Boot and Linux simpler.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This change allows the davinci timer functions to be used before
relocation since it avoids using static variables prior to BSS being
made available.
The code is based on that used in the at91 timers, modified to use
a davinci specific hardware timer. It also maintains reset_timer()
to allow deprecated timer usage to continue to work (for example,
in nand_base.c)
Signed-off-by: Nick Thompson <nick.thompson@ge.com>
Tested-by: Ben Gardiner <bengardiner@nanometrics.ca>
Tested-by: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Tested-by: Sandeep Paulraj <s-paulraj@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
r8 is used for global_data and should therefore be left alone!
For C code the compiler flag --fixed-r8 does the job, but in assembler
we need to be aware of that fact.
Signed-off-by: Andreas Biemann <andreas.devel@googlemail.com>
In case we are still at relocation target address before relocation we
do not need to load the registers needed for relocation. We should
instead skip the whole relocation part and jump over to clear_bss
immediately.
Signed-off-by: Andreas Biemann <andreas.devel@googlemail.com>
This patch uses r1 as scratch register for copy_loop(). Therefore we do
not longer need r7 for the storage of relocate_code()'s 'addr_moni' (the
destination address of relocation).
Therefore r7 can be used later on for other purposes.
Signed-off-by: Andreas Biemann <andreas.devel@googlemail.com>
suggested from Daniel Hobi<daniel.hobi@schmid-telecom.ch>
Tested on following boards:
arm1136: qong
armv7: omap3_beagle
arm926ejs: magnesium, tx25
Signed-off-by: Heiko Schocher <hs@denx.de>
cc: Daniel Hobi <daniel.hobi@schmid-telecom.ch>
cc: Albert ARIBAUD <albert.aribaud@free.fr>
The AT91SAM9G20 BOOT ROM apparently initializes PA23 and PA24 to multi drive
(open drain). Revert this, if those pins are going to be used for MII.
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
The patch is to support getting FEC MAC address from fuse bank.
Signed-off-by: Jason Liu <r64343@freescale.com>
Tested-by: Stefano Babic <sbabic@denx.de>
Before this commit, weak symbols were not overridden by non-weak symbols
found in archive libraries when linking with recent versions of
binutils. As stated in the System V ABI, "the link editor does not
extract archive members to resolve undefined weak symbols".
This commit changes all Makefiles to use partial linking (ld -r) instead
of creating library archives, which forces all symbols to participate in
linking, allowing non-weak symbols to override weak symbols as intended.
This approach is also used by Linux, from which the gmake function
cmd_link_o_target (defined in config.mk and used in all Makefiles) is
inspired.
The name of each former library archive is preserved except for
extensions which change from ".a" to ".o". This commit updates
references accordingly where needed, in particular in some linker
scripts.
This commit reveals board configurations that exclude some features but
include source files that depend these disabled features in the build,
resulting in undefined symbols. Known such cases include:
- disabling CMD_NET but not CMD_NFS;
- enabling CONFIG_OF_LIBFDT but not CONFIG_QE.
Signed-off-by: Sebastien Carlier <sebastien.carlier@gmail.com>
older ld emitted all ELF relocations in input sections named
.rel.dyn, whereas newer ld uses names of the form .rel*. The
linker script only collected .rel.dyn input sections. Rewrite
to collect all .rel* input sections.
Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
For ARM systems, before ELF relocation was introduced,
CONFIG_SKIP_RELOCATE_UBOOT coul be used to prevent *COPYING* the
U-Boot image from whereever it was loaded to it's link address
(CONFIG_SYS_TEXT_BASE). The name was badly chosen, as no relocation
was performed at all, it was just a memcpy().
With ELF relocation, this does not work like that any more, and
related boards need to be fixed anyway. So don't keep this relict any
longer.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Tested-by: Heiko Schocher <hs@denx.de>
Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>
When this define was introduced, the idea was to provide a soft
migration path for ARM boards to get adapted to the new relocation
support. However, other recent changes led to a different
implementation (ELF relocation), where this no longer works. By now
CONFIG_SYS_ARM_WITHOUT_RELOC does not only not help any more, but it
actually hurts because it obfuscates the actual code by sprinkling it
with lots of dead and non-working debris.
So let's make a clean cut and drop CONFIG_SYS_ARM_WITHOUT_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>
If start of any DRAM bank is greater than total DDR size, remaining DDR banks' start address & size were left un-initialized in dram_init function. This could break other functions who uses array 'gd->bd->bi_dram'. Kirkwood network driver is one example. This also stops Linux kernel from booting.
v2 - Set start address also to 0. Without this Linux kernel couldn't
boot up
Signed-off-by: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com>
This patch fixes the reset command on imx25. The watchdog registers are 16
bits in size and not 32. This patch also adds the service register codes as
constants.
Signed-off-by: Matthias Weisser <weisserm@arcor.de>
Fix address setup bug for ARM.
This bug stops u-boot booting if
CONFIG_SKIP_RELOCATE_UBOOT is defined.
Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
CONFIG_SYS_GBL_DATA_SIZE has always been just a bad workarond for not
being able to use "sizeof(struct global_data)" in assembler files.
Recent experience has shown that manual synchronization is not
reliable enough. This patch renames CONFIG_SYS_GBL_DATA_SIZE into
GENERATED_GBL_DATA_SIZE which gets automatically generated by the
asm-offsets tool. In the result, all definitions of this value can be
deleted from the board config files. We have to make sure that all
files that reference such data include the new <asm-offsets.h> file.
No other changes have been done yet, but it is obvious that similar
changes / simplifications can be done for other, related macro
definitions as well.
Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Conflicts:
arch/arm/include/asm/config.h
board/LaCie/edminiv2/config.mk
board/karo/tx25/config.mk
board/logicpd/imx27lite/config.mk
doc/README.arm-relocation
Signed-off-by: Wolfgang Denk <wd@denx.de>
clock.c / timer.c used static data and are called before relocation.
Move all static variables into global_data structure. Also cleanup
timer.c from unused stubs and make it truly use 64 bit tick values.
Signed-off-by: Reinhard Meyer <u-boot@emk-elektronik.de>
The change is currently needed to be able to remove the board
configuration scripting from the top level Makefile and replace it by
a simple, table driven script.
Moving this configuration setting into the "CONFIG_*" name space is
also desirable because it is needed if we ever should move forward to
a Kconfig driven configuration system.
Signed-off-by: Wolfgang Denk <wd@denx.de>
ELF relocation tables generated with linker option -pie can
be used to fixup code and data in a single loop at relocation,
removing the need for manual fixups anywhere else in the code.
Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
For all Kirkwood boards so far dram_init function is duplicated
dram_init function is moved to dram.c and relevant code from all
board specific files removed
If any board needs specific dram init handling than standard one,
then, a macro CONFIG_SYS_BOARD_DRAM_INIT should be defined in
board config header file and the dram_init function can be put
in board specific source file
For ex. keymile boards
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Earlier Device Identification register was used to detect
the type for SoC, considering 88F6282 support to be added,
It is not possible to detect the same using current
algorithm.
With this patch, device ID is being read using PCIE devid
register, also valid chip revision ID will also be read and
displayed
Signed-off-by: Prafulla Wadaskar <prafulla@marvell.com>
Generalized misuse of ble within relocation and bss
initialization loops caused one iteration too many.
Instead of ble ('branch if lower or equal'), use
blo ('branch if lower').
While we're at it, fix all 'addreee' typos.
Signed-off-by: Albert Aribaud <albert.aribaud@free.fr>
When disabled the PIT runs until it reaches the CPIV value.
The Linux PIT driver stops the PIT and waits until it stopped. This can
take over 100ms. Simply stopping in u-boot isn't sufficient as the PIT
will still be running when Linux is waiting until it stopped.
So, we stop it in u-boot by setting the compare value to a value slightly
greater than the current running counter to make the PIT stopped in short
time.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Change the implementation for arm926 to relocate the code to
an arbitrary address in RAM.
Adapt the TX25 (i.MX25), magnesium board to test the changes.
On the tx25 board TEXT_BASE is set to the final relocation
address to prevent one more copying of u-boot code
when relocating. More info see:
doc/README.arm-relocation
da850 board:
Tested-by: Ben Gardiner <bengardiner@nanometrics.ca>
Portions of this work were supported by funding from
the CE Linux Forum.
Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Ben Gardiner <bengardiner@nanometrics.ca>
