To make source code of loongson sharable to the machines(such as gdium)
made by the other companies, we rename arch/mips/lemote to
arch/mips/loongson, asm/mach-lemote to asm/mach-loongson, and rename lm2e
to the name of the machine: fuloong-2e. accordingly, FULONG are renamed to
FULOONG2E to make it distinguishable to the future FULOONG2F. and also,
some other relative tuning is needed.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This kernel support is needed by the user-space tool:oprofile to profile
linux kernel or applications via loongson2 performance counters. you can
enable this driver via CONFIG_OPROFILE = y or m.
On Loongson2 there are two performance counters, each one can count 16
events respectively. when anyone of the performance counter overflows, an
interrupt will be generated and is routed to the IRQ MIPS_CPU_IRQ_BASE + 6.
Signed-off-by: Yanhua <yanh@lemote.com>
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
RTC_LIB is selected by MIPS by default, and therefore, the legacy RTC
driver is disabled. but fortunately, RTC_LIB not works on fulong, so,
enabling the legcy RTC driver is needed, otherwise, the tools like
hwclock will not work.
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Fixup the wrong original comment of pcimap, and make the source code more
understandable. and also, some new extra consideration is added in.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
With the help of script/checkpatch.pl, i have cleaned up the coding
style.
1. remove un-needed header files and tune some comments.
2. remove some un-needed { }
add a new header file loongson.h:
3. move some common header files to loongson.h
4. move some common extern declartions to loongson.h
and this new header file is needed for future loongson2f support.
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch split the old initilization and setup implementation to
several file, one file one logic function.
the other main changes include:
1. as the script/checkpatch.pl suggests, use strict_strtol instead
of simple_strtol in arch/mips/lemote/lm2e/cmdline.c
2. use the existed macros in asm/mips-boards/bonito64.h as the
arguments of set_io_port_base() and remove the un-needed ones in
asm/mach-lemote/pci.h
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
mips_io_port_base is initialized via set_io_port_base() in
arch/mips/lemote/lm2e/setup.c, we can use it directly here.
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Several magic numbers have been replaced by relative macros, which will be
more readable and understandable.
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The implmentation of loongson2e_power_off and loongson2e_halt is almostly
the same, just preserve one of them.
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch is based on the implementation in the lm2e-fixes branch of
Philippe's git://git.linux-cisco.org/linux-mips.git and the
malta-specific early_printk implementation.
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Since the re-implementation of kgdb by commit
8854700115 the platform-specific version
has become superfluous, remove it.
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Removes the existing implementation of early_printk for fulong. The old
implementation was based on the outdated board-specific dbg_io.c.
Since commit 8d60a903d9 dbg_io.c is not longer
needed; it will be removed by the next patch, and a new implementation of
early_printk will be added later.
Signed-off-by: Wu Zhangjin <wuzj@lemote.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Error handling code following a kzalloc should free the allocated data.
Error handling code following an ioremap should iounmap the allocated data.
The semantic match that finds the first problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)
// <smpl>
@r exists@
local idexpression x;
statement S;
expression E;
identifier f,f1,l;
position p1,p2;
expression *ptr != NULL;
@@
x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
when != if (...) { <+...x...+> }
(
x->f1 = E
|
(x->f1 == NULL || ...)
|
f(...,x->f1,...)
)
...>
(
return \(0\|<+...x...+>\|ptr\);
|
return@p2 ...;
)
@script:python@
p1 << r.p1;
p2 << r.p2;
@@
print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Some TC35815 variants (i.e. TX493[89] internal ether) report existance of
PM registers though they are not supported. Disable PM features by
clearing pdev->pm_cap.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
page.h includes ifndef __ASSEMBLY__ guards, but PAGE_SIZE and some other
constants are defined using "1UL", which the assembler does not support.
Use the _AC macro from const.h to make them available to assembly (and
linker scripts).
Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Signed-off-by: Tim Abbott <tabbott@ksplice.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Some drivers use gpio_request/gpio_free regardless of whether
gpiolib is actually built; add stubs to work around the ensuing
compile failures.
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Header needed for current_cpu_data which expands to smp_processor_id().
However, linux/smp.h can't be included into asm/cpu-info.h due to horrible
circular dependencies, so plug it here.
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The current code only checks CCA of 0 when deciding if a dummy read is
needed. Since the kernel can (and does) use other CCAs we need to
mask out the CCA bits from the address. Since the address constant
now fits in 16 bits, there is an added benefit that smaller code is
generated.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
amd64_edac: check NB MCE bank enable on the current node properly
amd64_edac: Rewrite unganged mode code of f10_early_channel_count
amd64_edac: cleanup amd64_check_ecc_enabled
x86, EDAC: Provide function to return NodeId of a CPU
amd64_edac: build driver only on AMD hardware
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (53 commits)
m68knommu: Make PAGE_SIZE available to assembly files.
m68knommu: fix ColdFire definition of CLOCK_TICK_RATE
m68knommu: set multi-function pins for ethernet when enabled
m68knommu: remove special interrupt handling code for ne2k support
m68knommu: relax IO_SPACE_LIMIT setting
m68knommu: remove ColdFire direct interrupt register access
m68knommu: create a speciailized ColdFire 5272 interrupt controller
m68knommu: add support for second interrupt controller of ColdFire 5249
m68knommu: clean up old ColdFire timer irq setup
m68knommu: map ColdFire interrupts to correct masking bits
m68knommu: clean up ColdFire 532x CPU timer setup
m68knommu: simplify ColdFire "timers" clock initialization
m68knommu: support code to mask external interrupts on old ColdFire CPU's
m68knommu: merge old ColdFire interrupt controller masking macros
m68knommu: remove duplicate ColdFire mcf_autovector() code
m68knommu: move ColdFire INTC definitions to new include file
m68knommu: mask off all interrupts in ColdFire intc-simr controller
m68knommu: remove timer device interrupt setup for ColdFire 532x
m68knommu: remove interrupt masking from ColdFire pit timer
m68knommu: remove unecessary interrupt level setting in ColdFire 520x setup
...
Add support for Dynamic Power Switching (DPS) for the RX51 board.
These scripts are still a work-in-progress. I'll keep sending patches to
update the scripts as they are optimised.
Signed-off-by: Amit Kucheria <amit.kucheria@verdurent.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The mcount support that was finally added to the Blackfin gcc port isn't
exactly the same as what ftrace was developed against. Now that the final
gcc version is in place, update the ftrace code to match.
While updating this, fix the swapped arguments to the tracer (signature is
(ip, parent_ip) while we were passing (parent_ip, ip)).
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The elf_fpregset_t type relied on an empty struct in the asm/user.h, but
the transition to asm-generic/user.h dropped that empty struct. Rather
than restore this useless struct, define the only user (elf_fpregset_t)
as an empty struct itself. This fixes building when ELF dump support is
enabled.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The CPLB implementations (mpu/nompu) had exact copies of the cacheinit
code. Even the i/d cache functions are largely the same. So unify them
both in the common kernel cache code.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The cycles clocksource is a higher resolution than the gptimer one, so
make sure the ratings field reflects this.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Commit 71e308a239 updated ftrace_push_return_trace() prototype but didn't
update the Blackfin ftrace code, so things broke. Since we don't support
the new stuff yet, call it with stub values.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The cm-bf537u module, while similar to the cm-bf537e, is different enough
to warrant its own resources. It has a USB controller but no PHY.
Signed-off-by: Harald Krapfenbauer <Harald.Krapfenbauer@bluetechnix.at>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The default async timings are a little too fast for the parallel flash
that is attached by default to the async banks. So slow things down a bit
so accessing the hardware is stable.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When doing XIP, we need to execute out of the async banks, so we need
ICPLBs to allow this.
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Most messages are already using KERN_ALERT, so be consistent to make
things easier to check with test scripts.
Signed-off-by: Mingquan Pan <grace.pan@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The BF54x has three slave select signals for SPI0/SPI1, not eight.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The DTEST write bit is 2, not 1. Improve comments in the related macro
while we're here.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Make sure our interrupt entry code with exact hardware errors handles
anomaly 05000283 (infinite stall in system MMR kill) so we don't stall
while under load.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
When preempt debugging is enabled, smp_processor_id() may utilize the
"current" structure. This may not be safe to access under all exceptions
due to it being in dynamically allocated memory. So in exception code,
make sure we use raw_smp_processor_id() instead to get at the real value
directly.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Not sure whether this has been reported/fixed before.
Today I built a Blackfin tool-chain from scratch for -tip testing,
and it triggers:
arch/blackfin/kernel/vmlinux.lds:1238: undefined section `.data_a_l1' referenced in expression
and:
arch/blackfin/kernel/vmlinux.lds:1238: undefined section `.text_data_l1'
referenced in expression
Now i dont have any way to test this linker script, but it now at
least builds fine after fixing what appears to be typos in those
assert statements.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The majority of the time we are returning to user space, it is not in the
fixed atomic code region. So rather than branch to a function where we
check the PC and return, do the check inline and branch only when needed.
Also, tweak some of the fixed code handling based on assumptions we are
aware of but cannot be expressed in C.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The ASoC drivers have dropped the redundant "-spi" suffix in the driver
name, so update the board resources accordingly.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
No one uses these functions, and some are duplicate of existing C code. So
just punt the whole thing.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
These hardware devices are dead and the drivers never cleaned up/merged,
so punt the useless board resource info.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Since the exception handler cannot cause exceptions, we cannot trace it
without easily causing double faults and crashing the system.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
We have an item to get this fixed, but in the mean time, disable selection
via Kconfig dependencies.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The handling of updating the [DI]MEM_CONTROL MMRs does not follow proper
sync procedures as laid out in the Blackfin programming manual. So rather
than audit/fix every call location, create helper functions that do the
right things in order to safely update these MMRs. Then convert all call
sites to use these new helper functions.
While we're fixing the code, drop the workaround for anomaly 05000125 as
that anomaly applies to old versions of silicon that we do not support.
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Update the ad1836 resources for the new ASoC driver.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The board has some parallel flash hooked up to the async banks, so add
appropriate physmap resources for it.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Check whether index is within bounds before testing the element.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
I think we have to use the physical dimensions [mm] of the display for
.width and .heigth in struct bfin_bf54xfb_mach_info bf54x_lq043_data which
are copied to fbinfo->var.height/.width in bf54x-lq043fb.c.
linux/fb.h describes this values as 'height/weight of picture in mm'
Otherwise QT calcs the wrong dpi value and the displayed fonts are very
small.
Signed-off-by: Stefan Pledl <stefan.pledl@mesutronic.de>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The dm9000 driver expects two IORESOURCE_MEM to get at the device, so make
sure we declare things properly.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Latest smc91x driver allows you to specify settings in board resources
rather than needing CONFIG_BLACKFIN in the drivers/net/smc91x.h header.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The interrupt probe workaround doesn't work without hacks to common code,
and the add-on card only needs a simple resistor to fix the problem, so
drop the board-specific hack.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Since the hardware only provides reporting for the last exception handled,
and the values are valid only when executing the exception handler, we
need to save the context for reporting at a later point. While we do this
for one exception, it doesn't work properly when handling a second one as
the original exception is clobbered by the double fault. So when double
fault debugging is enabled, create a dedicated shadow of these values and
save/restore out of there. Now the crash report properly displays the
first exception as well as the second one.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
One too many zeros means we run way faster than the codec can handle.
Signed-off-by: Cliff Cai <cliff.cai@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The protect_page() function was incorrectly setting up the hardware tables
based on possible access capabilities rather than the actual requested
values. This means we would grant more access to mmap-ed pages than we
should have. Once we fix this, we need to tweak the signal generated by
such accesses to aline ourselves with other ports. This allows the LTP
mmap0{5,6,7} cases to run properly.
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
I2C_BOARD_INFO() already sets .type, no need to set it again.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Push the device table to the board resources as data interpretation can be
changed on a per-board basis.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The end of the stack may not be valid (and that could be OK), so do not
attempt to parse it. If we do, we might use a bad pointer in kernel space
which makes things panic().
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Add the bf538 version of bfin_clear_PPI_STATUS() to match all other ports.
Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The initial BF54x port included some defines to keep code simple across
different processors, but it just ended up causing the UART0 DMA IRQs to
be set to the UART1 channels.
Signed-off-by: Stefan Pledl <stefan.pledl@mesutronic.de>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Allow hardware errors to be caught during early portions of booting, and
leave something in the shadow console that people can use to debug their
system with (to be printed out by the bootloader on next reset).
This enables the hardare error interrupts in head.S, allowing us to find
hardware errors when they happen (well, as much as you can with a hardware
error) and prints out the trace if it is enabled. This will catch errors
(like booting the wrong image on a 533) which previously resulted in a
infinite loop/hang, as well as random hardware errors before before
setup_arch().
To disable this debug only feature - turn off EARLY_PRINTK.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Add a memory based shadow console to keep a copy of the printk buffer in a
location which can be found externally. This allows bootloaders to locate
and utilize the log buffer in case of silent (early/resume/etc...) crashes.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The FDPIC arches support a standard set of ptrace requests so rather than
define our own custom API, hook up those requests for common code to
leverage.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Rather than defining the locks and initializing them all the time, only do
so when we actually need them (i.e. the SRAM regions exist). This avoids
dead data and code bloat during runtime.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The "TWI_KEYPAD" driver was renamed to "INPUT_PCF8574", so update the
defines in the board resources accordingly.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Remove code duplication, and only print out memory warnings when they are
an actual problem.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The current module relocation code has spotty handling wrt different
memory regions (like L1 instruction). Rather than try to fix each
little spot, use the new common memory functions to greatly simplify
everything and make sure it is always correct.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The current module section handling code has a lot of verbose statements
copied and pasted throughout which makes it pretty hard to digest at a
glance. By unifying all of these up front, it is a lot easier to quickly
get an idea of what is actually going on.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Convert all printk() statements to use the common pr_xxx() funcs and use
the new pr_fmt() function to standardize all of the output.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
All kernel modules are required to be built with -mlong-calls and thus
should not generate any of these relocations. If they do, it means the
module has not been compiled properly, so rather than trying to handle
them (and running into random run time errors) just error out on module
load to force the module to be compiled correctly.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Now that we have a Blackfin memory function to figure out how to properly
access the different regions, drop the custom memory range checks in our
ptrace code and use that. It makes the code nicer and fixes bugs where
the ptrace logic wasn't handling all the different regions.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Unify the address display to shrink the code, and add missing decoding of
a few special Blackfin-specific regions (L1 ROM and MMRs).
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Cleanup is performed in two ways:
- remove extraneous updates of IPEND[4] w/ CONFIG_IPIPE,
and document remaining use.
- substitute pop-reg-from-stack instructions with plain SP fixups in
all save-RETI-then-discard patterns.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The purpose of the EVT14 handler may depend on whether CONFIG_IPIPE is
enabled, albeit its implementation can be the same in both cases. When
the interrupt pipeline is enabled, EVT14 can be used to raise the core
priority level for the running code; when CONFIG_IPIPE is off, EVT14
can be used to lower this level before running softirq handlers.
Rename evt14_softirq to evt_evt14 to pick an identifier that fits
both, which allows to reuse the same vector setup code as well.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
ret_from_fork is always entered with hw interrupts off, which prevents
real-time domains to preempt the Linux kernel during part of the
initial context switch to the new task, which could in turn raise the
worst-case latency figures.
To avoid this, stall the root domain stage in the interrupt pipeline
to keep the scheduling tail code free from Linux-handled IRQs, then
enable hardware interrupts again.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
__ipipe_{stall, unstall}_root_raw() identifiers may leave the reader
under the impression that only the virtual state is affected by these
operations, which is wrong. Pick names following the convention used
throughout the interrupt pipeline code.
Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
We handle many exceptions at EVT5 (hardware error level) so that we can
catch exceptions in our exception handling code. Today - if the global
interrupt enable bit (IPEND[4]) is set (interrupts disabled) our trap
handling code goes into a infinite loop, since we need interrupts to be
on to defer things to EVT5.
Normal kernel code should not trigger this for any reason as IPEND[4] gets
cleared early (when doing an interrupt context save) and the kernel stack
there should be sane (or something much worse is happening in the system).
But there have been a few times where this has happened, so this change
makes sure we dump a proper crash message even when things have gone south.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The "cleanup console_print()" patch in commit
353f6dd2de introduced an "extern"
declaration into an assembly language file. Remove it.
Signed-off-by: Anirban Sinha <asinha@zeugmasystems.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
VPIF display changes (Chaithrika)
Add platform device and resource structures. Also define a platform specific
clock setup function that can be accessed by the driver to configure the clock
and CPLD.
VPIF caputure changes (Murali)
1) Modify vpif_subdev_info to add board_info, routing information and
vpif interface configuration. Remove addr since it is part of
board_info
2) Add code to setup channel mode and input decoder path for vpif
capture driver
Also incorporated comments against version v0 of the patch series and
added a spinlock to protect writes to common registers
Tested on DM6467 on channel 0 using TVP514x. Following bootargs used
for drivers:
vpif_capture.ch0_bufsize=829440 vpif_display.ch2_bufsize=829440
Signed-off-by: Manjunath Hadli <mrh@ti.com>
Signed-off-by: Brijesh Jadav <brijesh.j@ti.com>
Signed-off-by: Chaithrika U S <chaithrika@ti.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
DM355 platform and board setup
This has platform and board setup changes to support vpfe capture
driver for DM355 EVMs.
Tested video capture on DM355 using tvp514x
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Reviewed-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com>
Signed-off-by: Denys Dmytriyenko <denis@denix.org>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
DM644x platform and board setup
This adds platform and board setup changes required to support
vpfe capture driver on DM644x
Tested video capture on DM6446 with tvp514x driver
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Reviewed-by: Laurent Pinchart <laurent.pinchart@skynet.be>
Reviewed-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com>
Signed-off-by: Denys Dmytriyenko <denis@denix.org>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (75 commits)
PCI hotplug: clean up acpi_run_hpp()
PCI hotplug: acpiphp: use generic pci_configure_slot()
PCI hotplug: shpchp: use generic pci_configure_slot()
PCI hotplug: pciehp: use generic pci_configure_slot()
PCI hotplug: add pci_configure_slot()
PCI hotplug: clean up acpi_get_hp_params_from_firmware() interface
PCI hotplug: acpiphp: don't cache hotplug_params in acpiphp_bridge
PCI hotplug: acpiphp: remove superfluous _HPP/_HPX evaluation
PCI: Clear saved_state after the state has been restored
PCI PM: Return error codes from pci_pm_resume()
PCI: use dev_printk in quirk messages
PCI / PCIe portdrv: Fix pcie_portdrv_slot_reset()
PCI Hotplug: convert acpi_pci_detect_ejectable() to take an acpi_handle
PCI Hotplug: acpiphp: find bridges the easy way
PCI: pcie portdrv: remove unused variable
PCI / ACPI PM: Propagate wake-up enable for devices w/o ACPI support
ACPI PM: Replace wakeup.prepared with reference counter
PCI PM: Introduce device flag wakeup_prepared
PCI / ACPI PM: Rework some debug messages
PCI PM: Simplify PCI wake-up code
...
Fixed up conflict in arch/powerpc/kernel/pci_64.c due to OF device tree
scanning having been moved and merged for the 32- and 64-bit cases. The
'needs_freset' initialization added in 6e19314cc ("PCI/powerpc: support
PCIe fundamental reset") is now in arch/powerpc/kernel/pci_of_scan.c.
Sysbench thinks SD_BALANCE_WAKE is too agressive and kbuild doesn't
really mind too much, SD_BALANCE_NEWIDLE picks up most of the
slack.
On a dual socket, quad core, dual thread nehalem system:
sysbench (--num_threads=16):
SD_BALANCE_WAKE-: 13982 tx/s
SD_BALANCE_WAKE+: 15688 tx/s
kbuild (-j16):
SD_BALANCE_WAKE-: 47.648295846 seconds time elapsed ( +- 0.312% )
SD_BALANCE_WAKE+: 47.608607360 seconds time elapsed ( +- 0.026% )
(same within noise)
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
get/set_wallclock() have already a set of platform dependent
implementations (default, EFI, paravirt). MRST will add another
variant.
Moving them to platform ops simplifies the existing code and minimizes
the effort to integrate new variants.
Signed-off-by: Feng Tang <feng.tang@intel.com>
LKML-Reference: <new-submission>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
init_IRQ() and x86_late_time_init() are missing __init annotations.
The x86 platform ops variables are annotated, but the annotation needs
to be put between the variable name and the "=" of the initializer.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This is necessary to get ftrace syscall tracing working again.. a fairly
trivial and mechanical change. The one benefit is that this can also be
enabled on sh64, despite not having its own ftrace port.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Many years ago when this driver was written, it had a use, but these
days it's nothing but trouble and distributions should not enable it
in any situation.
Pretty much every console device a sparc machine could see has a
bonafide real driver, making the PROM console hack unnecessary.
If any new device shows up, we should write a driver instead of
depending upon this crutch to save us. We've been able to take care
of this even when no chip documentation exists (sunxvr500, sunxvr2500)
so there are no excuses.
Signed-off-by: David S. Miller <davem@davemloft.net>
The good definition of CLOCK_TICK_RATE for coldfires has been lost in the
merge of m68k and m68knommu include files. Restore it. Culprit :
commit ebafc17468
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ethernet pins on the 532x ColdFire CPU family are multi-function
pins. We need to enable them as ethernet pins when using the FEC
ethernet driver.
Bug report, and older patch, from timothee@manaud.net.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The improved interrupt support for ColdFire CPU cores means we no
longer need all the interrupt setup and ack hacks to support the NE2000
driver on ColdFire platforms. Remove all that code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
There is really no limit to the addresses which can be used by the
in*() and out*() family of IO space calls in m68k non-MMU environments.
So don't impose an artificial address limit, allow the full 32bit range.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Now that the ColdFire 5272 has full interrupt controller functionality
we can remove all the interrupt masking and acking code from the FEC
ethernet driver.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire 5272 CPU has a very different interrupt controller than
any of the other ColdFire parts. It needs its own controller code to
correctly setup and ack interrupts.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire 5249 CPU has a second (compleletly different) interrupt
controller. It is the only ColdFire CPU that has this type. It controlls
GPIO interrupts amongst a number of interrupts from other internal
peripherals. Add support code for it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The recent changes to the old ColdFire interrupt controller code means
we no longer need to manually unmask the timer interrupt. That is now
done in the interrupt controller code proper.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The older simple ColdFire interrupt controller has no one-to-one mapping
of interrupt numbers to bits in the interrupt mask register. Create a
mapping array that each ColdFire CPU type can populate with its available
interrupts and the bits that each use in the interrupt mask register.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The newer ColdFire 532x family of CPU's uses the old timer, but has a
newer interrupt controller. It doesn't need the special timer setup
that was required when using the older interrupt controller. Remove the
dead timer irq and level setting code, and define the hard coded vector.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire "timers" clock setup can be simplified. There is really no
need for the flexible per-platform setup code. The clock interrupt can be
hard defined per CPU platform (in CPU include files). This makes the
actual timer code simpler.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The external interrupts used on the old Coldfire parts with the old style
interrupt controller can be properly mask/unmasked in the interrupt
handling code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Currently the code that supports setting the old style ColdFire interrupt
controller mask registers is macros in the include files of each of the
CPU types. Merge all these into a set of real masking functions in the
old Coldfire interrupt controller code proper. All the macros are basically
the same (excepting a register size difference on really early parts).
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Each of the ColdFire CPU platform code that used the old style interrupt
controller had its own copy of the mcf_autovector() function. They are all
the same, remove them all and create a single function in the common
coldfire/intc.c code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Create an mcfintc.h include file with the definitions for the old style
ColdFire interrupt controller. They are only needed on CPU's that use
this old controller - so isolate them on their own.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire intc-simr interrupt controller should mask off all
interrupt sources at init time. Doing it here instead of separately
in each platform setup.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
With fully implemented interrupt controller code we don't need to do
the custom interrupt setup for the timer device of the ColdFire 532x.
Remove that code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
With proper interrupt controller code in place there is no need for
devices like the timers to have custom interrupt masking code.
Remove it (and the defines that go along with it).
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The new code for the interrupt controller in the ColdFire 520x takes
care of all the interrupt controller setup. No manual config of the
level registers (ICR) is required by the platform device setup code.
So remove it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Each different m68knommu CPU interrupt controller type has its own
interrupt controller data structures now. Remove the old, and now not
used, common irq structs and init code from here.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Define the interrupt controller structures along with the interrupt
controller code for the 68360 CPU. This brings the interrupt setup
and control into one place for this CPU family.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Define the interrupt controller structures along with the interrupt
controller code for the 68328 CPU family. This brings the interrupt
setup and control into one place for this CPU family.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The old ColdFire CPU's (5206, 5307, 5407, 5249 etc) use a simple
interrupt controller. Use common setup code for them. This addition
means that all ColdFire CPU's now have some specific type of interrupt
controller code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
With the common intc-simr interrupt controller code in place the ColdFire
532x family startup code can be greatly simplified. Remove all the
interrupt masking code, and the per-device interrupt config here.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire 532x family of parts uses 2 of the same INTC interrupt
controlers used in the ColdFire 520x family. So modify the code to
support both parts. The extra code for the second INTC controler in
the case of the 520x is easily optimized away to nothing.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
With the common intc-2 interrupt controller code in place the ColdFire
523x family startup code can be greatly simplified. Remove all the
interrupt masking code, and the per-device interrupt config here.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
With the common intc-2 interrupt controller code in place the ColdFire
528x family startup code can be greatly simplified. Remove all the
interrupt masking code, and the per-device interrupt config here.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
With the common intc-2 interrupt controller code in place the ColdFire
527x family startup code can be greatly simplified. Remove all the
interrupt masking code, and the per-device interrupt config here.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Wu Zhangjin