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The reference implementation of the PCI initialization code almost
everywhere contain this fragile loop of "a few usecs", and its
use of volatile variables to delay a number of bus cycles is indeed
uncertain.
Reading the manual "Integrator/AP Users Guide", page 5-15 it is
clearly stated:
"Wait until 230ms after the end of the reset period before
accessing V360EPC internal registers. The V360EPC supports the
use of a serial configuration PROM and the software must wait for
the device to detect the absence of this PROM before accessing any
registers. The required delay is a function of the PCI Clock, but
at the lower frequency (25MHz) is 230ms".
So let's simply wait 230ms per the spec.
This solves the compilation error that looked like this:
pci.c: In function ‘pci_init_board’:
pci.c:286:18: warning: variable ‘j’ set but not used
Reported-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The PCI support for the Integrator AP has apparently never
been finished and I strongly suspect that it has never worked,
so let's fix it. This is a list of the more or less
un-splittable changes done in this driver rewrite:
- Replace the register definitions stashed into the config
file (!) with a copy if the register file from the Linux
kernels arch/arm/include/asm/hardware/pci_v3.h
- Delete the unreadable gigantic macros that perform the
config accesses and replace them with copyedited code from
Linux arch/arm/mach-integrator/pci_v3.c
- Rewrite the rest of the setup code to use the
v3_[read|write][lwb]() accessors.
- Enable PCI by default in the AP board configuration.
- Fix checkpatch warnings and make code more conformant.
Tested-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The U-Boot startup infrastructure already makes sure pci_init() is
called at a proper time, calling it again from within the board
setup code will not make things better.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This enables Vpp and disables the flash protection on the
Integrator when starting U-Boot. The integrator/AP has double
protection mechanisms: this one and the EBI protection bit
(patch earlier), the Integrator/CP has only one line of
protection in these registers.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Break out the AP system controller and CP "CP controller"
registers into a header file, it gives better overview than
hardcoding its values and other disturbing practices.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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This reconfigures the EBI (External Bus Interface) on the
integrator so that chip select 1, handling the flash memory, is
set to writeable. Without this it is not possible for U-Boot to
access flash memory and it crashes on startup since CFI won't
work properly.
Since this is the first time we use the EBI, we create a header
file for its registers.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Casting around to *(volatile ulong *) doesn't look good, so include
the <asm/io.h> macros and use good old readl() instead.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Do away with the config.mk file and move the text offset to the
config files to make things easier.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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When booting from Flash, the Integrator remaps its flash memory
from 0x24000000 to 0x00000000, and starts executing it at
0x00000000. This ROM thus hides the RAM underneath and first
0x40000 bytes of the memory cannot be tested by get_ram_size().
So let's test from 0x40000 to the end of detected memory
instead.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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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>
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Since commit d388298a59ba375c76597b8f95b560afa971a0fb by
Stefano Babic this file is no longer needed so delete it.
Cc: Stefano Babic <sbabic@denx.de>
Cc: Loïc Minier <loic.minier@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Drop warning: "passing argument 1 of 'get_ram_size'
discards qualifiers from pointer target type"
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Albert Aribaud <albert.u.boot@aribaud.net>
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This deletes the integrator split_by_variant.sh script and
defines a number of unique board types for the core modules
that are meaningful to support for the Integrator AP/CP, i.e.
the ones that did not just say "unsupported core module" in
split_by_variant.sh. If more core modules need to be supported
they are easy to add.
We delete all the old cruft in Makefile and MAKEALL that was
working around the old way of building boards. We create a
unique config file per board to satisfy the build system, but
they are just oneliners that include the existing
integratorap.h and integratorcp.h configs.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The integrator board was apparently never converted over to support
relocation until now. After this the integrator u-boot both compiles
and boots on the Integrator AP.
This also fixes the SDRAM memory size detection.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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The integratorap/cp config for u-boot was outdated and would not
even compile, so fix the obvious missing bits for it to start
building. After this "make ap920t_config/make all" starts working
again.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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Versatile board is used as example to run u-boot under qemu.
The patch fixes relocation for all versatile boards and adds
a versatileqemu target to be used under qemu.
Patch tested only under qemu, not on real boards.
Tested with QEMU emulator version 0.14.50.
Signed-off-by: Stefano Babic <sbabic@denx.de>
CC: Alessandro Rubini <rubini-list@gnudd.com>
CC: Loïc Minier <loic.minier@linaro.org>
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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()
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Replace the cache related CONFIG flags with more meaningful
names. Following are the changes:
CONFIG_L2_OFF -> CONFIG_SYS_L2CACHE_OFF
CONFIG_SYS_NO_ICACHE -> CONFIG_SYS_ICACHE_OFF
CONFIG_SYS_NO_DCACHE -> CONFIG_SYS_DCACHE_OFF
Signed-off-by: Aneesh V <aneesh@ti.com>
V2:
* Changed CONFIG_L2_OFF -> CONFIG_SYS_NO_L2CACHE
V4:
* Changed all three flags to the final names suggested as above
and accordingly changed the commit message
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Add a header file with the missing function prototype to fix
ca9x4_ct_vxp.c: In function 'cpu_mmc_init':
ca9x4_ct_vxp.c:93: warning: implicit declaration of function 'arm_pl180_mmci_init'
introduced by commit "ARMV7: Vexpress: Add MMC support"
(f0c64526b7e51ba997a0f1baf9e74e6d497b957e)
Signed-off-by: Dirk Behme <dirk.behme@googlemail.com>
CC: Andy Fleming <afleming@freescale.com>
CC: Matt Waddel <matt.waddel@linaro.org>
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Added the board specific definitions to use the MMCI device.
Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
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Remove obsolete board config.mk.
Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
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Fix ca9x4_ct_vxp build error
Configuring for ca9x4_ct_vxp board...
board/armltd/vexpress/libvexpress.o: In function `udelay':
u-boot.git/board/armltd/vexpress/ca9x4_ct_vxp.c:161: multiple
definition of `udelay'
lib/libgeneric.o:u-boot.git/lib/time.c:34: first defined here
lib/libgeneric.o: In function `udelay':
zlib.c:(.text+0x1ee8): undefined reference to `__udelay'
Signed-of-by: Dirk Behme <dirk.behme@googlemail.com>
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Fixed "pointer from integer without a cast" warnings in Vexpress.
Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
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This patch fixes build errors in the vexpress system:
- Removed sys_proto.h requirement from syslib.c.
- Switched vexpress to the default armv7 linker script.
- Renamed TEXT_BASE to CONFIG_SYS_TEXT_BASE.
Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
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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>
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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>
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This patch fixes an error when running MAKEALL for ARM9.
On OS X /bin/sh uses builtin echo which does not utilise '-n' switch.
GNU manual for builtins recomend to use here-document style to solve
this portability issue.
This patch removes the usage of 'echo -n' and replace by here-document
style or a oneline echo command.
Signed-off-by: Andreas Bießmann <andreas.devel@googlemail.com>
CC: Peter Pearse <peter.pearse@arm.com>
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Adds support for the ARM quad-core Cortex-A9 processor
This system includes a motherboard(Versatile Express), daughterboard
(Coretile), and SOC(Cortex-A9 quad core). The serial port, ethernet,
and flash systems work with these additions. The naming convention
is:
SOC -> CortexA9 quad core = ca9x4
daughterboard -> Coretile = ct
motherboard -> Versatile Express = vxp
This gives ca9x4_ct_vxp.c as the board support file.
Signed-off-by: Matt Waddel <matt.waddel@linaro.org>
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pci_eth_init() is already conditional to CONFIG_PCI so not every caller
needs to have conditionals.
This is the only place in the current code base where such a check is
still at the calling site.
Signed-off-by: Detlev Zundel <dzu@denx.de>
CC: Ben Warren <biggerbadderben@gmail.com>
CC: Peter Pearse <peter.pearse@arm.com>
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According to the PPC reference implementation the udelay() function is
responsible for resetting the watchdog timer as frequently as needed.
Most other architectures do not meet that requirement, so long-running
operations might result in a watchdog reset.
This patch adds a generic udelay() function which takes care of
resetting the watchdog before calling an architecture-specific
__udelay().
Signed-off-by: Ingo van Lil <inguin@gmx.de>
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All in-tree boards that use this controller have CONFIG_NET_MULTI
added
Also:
- changed CONFIG_DRIVER_SMC91111 to CONFIG_SMC91111
- cleaned up line lengths
- modified all boards that override weak function in this driver
- modified all eeprom standalone apps to work with new driver
- updated blackfin standalone EEPROM app after testing
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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The board/armltd/integrator/split_by_variant.sh script used to print
"Configuring for integrator*p board..." no matter which board name
was being compiled. This made it difficult to match MAKEALL output to
board names. This patch fixes this.
Signed-off-by: Wolfgang Denk <wd@denx.de>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Peter Pearse <peter.pearse@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Peter Pearse <peter.pearse@arm.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Peter Pearse <peter.pearse@arm.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Peter Pearse <peter.pearse@arm.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Peter Pearse <peter.pearse@arm.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Peter Pearse <peter.pearse@arm.com>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Peter Pearse <peter.pearse@arm.com>
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all arm boards except a few use the same cpu linker script
so move it to cpu/$(CPU)
that could be overwrite in following order
SOC
BOARD
via the corresponding config.mk
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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actually the timer init use the interrupt_init as init callback
which make the interrupt and timer implementation difficult to follow
so now rename it as int timer_init(void) and use interrupt_init for interrupt
btw also remane the corresponding file to the functionnality implemented
as ixp arch implement two timer - one based on interrupt - so all the timer
related code is moved to timer.c
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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Signed-off-by: Detlev Zundel <dzu@denx.de>
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unify arm cache management except for non standard cache as ARM7TDMI
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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A recent gcc added a new unaligned rodata section called '.rodata.str1.1',
which needs to be added the the linker script. Instead of just adding this
one section, we use a wildcard ".rodata*" to get all rodata linker section
gcc has now and might add in the future.
However, '*(.rodata*)' by itself will result in sub-optimal section
ordering. The sections will be sorted by object file, which causes extra
padding between the unaligned rodata.str.1.1 of one object file and the
aligned rodata of the next object file. This is easy to fix by using the
SORT_BY_ALIGNMENT command.
This patch has not be tested one most of the boards modified. Some boards
have a linker script that looks something like this:
*(.text)
. = ALIGN(16);
*(.rodata)
*(.rodata.str1.4)
*(.eh_frame)
I change this to:
*(.text)
. = ALIGN(16);
*(.eh_frame)
*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
This means the start of rodata will no longer be 16 bytes aligned.
However, the boundary between text and rodata/eh_frame is still aligned to
16 bytes, which is what I think the real purpose of the ALIGN call is.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
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The PCI_REGION_MEMORY and PCI_REGION_MEM are a bit to similar and
can be confusing when reading the code.
Rename PCI_REGION_MEMORY to PCI_REGION_SYS_MEMORY to clarify its used
for system memory mapping purposes.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
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