All these separate directories for each ColdFire CPU SoC varient seems like
overkill. The majority of them only contain a single small config file. Move
these into the common ColdFire code directory.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
All these separate directories for each ColdFire CPU SoC varient seems like
overkill. The majority of them only contain a single small config file. Move
these into the common ColdFire code directory.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
All these separate directories for each ColdFire CPU SoC varient seems like
overkill. The majority of them only contain a single small config file. Move
these into the common ColdFire code directory.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
All these separate directories for each ColdFire CPU SoC varient seems like
overkill. The majority of them only contain a single small config file. Move
these into the common ColdFire code directory.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
All these separate directories for each ColdFire CPU SoC varient seems like
overkill. The majority of them only contain a single small config file. Move
these into the common ColdFire code directory.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The GPIO data struct setup is now the only remaining code in the platform
gpio.c file. So move it to the platform config.c code and remove the gpio.c
file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
The code that adds each ColdFire platforms GPIO signals is duplicated in
each platforms specific code. Remove it from each platforms code and put
a single version in the existing ColdFire gpio subsystem init code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
We also need to rename some of the GPIO registers to be consistent with
all other ColdFire parts (we can't use the new GPIO macros otherwise).
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
Modify the GPIO setup table to use the mcfgpio.h macros for table init.
Simplifies code and reduces line count significantly.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
We have very large tables in the ColdFire CPU GPIO setup code that essentially
boil down to 2 distinct types of GPIO pin initiaization. Using 2 macros we can
reduce these large tables to at most a dozen lines of setup code, and in quite
a few cases a single table entry.
Introduce these 2 macros into the existing mcfgpio.h header.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Steven King <sfking@fdwdc.com>
This patch removes the following warning:
fs/binfmt_flat.c:752: warning: unused variable 'persistent'.
There is neither functionality change, nor extra code generated.
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The MMU (signal_mm.c) and non-MMU (signal_no.c) versions of the m68k
architecture signal handling code are very similar. Most of their code is
the same.
Merge the two back into a single signal.c, and move some of the code around
inside the file to minimize the number of #ifdefs required. Specificially
we can group out the CONFIG_FPU and the CONFIG_MMU code. We end up needing
a few other "#ifdef CONFIG_MMU" as well, but not too many.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
That old mail address doesnt exist any more.
This changes all occurences to a current address.
Signed-off-by: Oskar Schirmer <oskar@scara.com>
Acked-by: Sebastian Heß <shess@hessware.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Historical prepare_to_copy() is mostly a no-op, duplicated for majority of
the architectures and the rest following the x86 model of flushing the extended
register state like fpu there.
Remove it and use the arch_dup_task_struct() instead.
Suggested-by: Oleg Nesterov <oleg@redhat.com>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1336692811-30576-1-git-send-email-suresh.b.siddha@intel.com
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
CROSS_COMPILE must be setup before using e.g. cc-option (and a few other
as-*, cc-*, ld-* macros), else they will check against the wrong compiler
when cross-compiling, and may invoke the cross compiler with wrong or
suboptimal compiler options.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Greg Ungerer<gerg@uclinux.org>
Rather than requiring architectures that use gpiolib but don't have any
need to define anything custom to copy an asm/gpio.h provide a Kconfig
symbol which architectures must select in order to include gpio.h and
for other architectures just provide the trivial implementation directly.
This makes it much easier to do gpiolib updates and is also a step towards
making gpiolib APIs available on every architecture.
For architectures with existing boilerplate code leave a stub header in
place which warns on direct inclusion of asm/gpio.h and includes
linux/gpio.h to catch code that's doing this. Direct inclusion of
asm/gpio.h has long been deprecated.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Jonas Bonn <jonas@southpole.se>
Acked-by: Tony Luck <tony.luck@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Enable Coldfire QSPI support when SPI_COLDFIRE_QSPI is built as a module.
This version of the patch combines changes to the config files and device.c
and uses IF_ENABLED (thanks to Sam Ravnborg for the suggestion).
Signed-off-by: Steven King <sfking@fdwdc.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Booting a 3.2, 3.3, or 3.4-rc4 kernel on an Atari using the
`nfeth' ethernet device triggers a WARN_ONCE() in generic irq
handling code on the first irq for that device:
WARNING: at kernel/irq/handle.c:146 handle_irq_event_percpu+0x134/0x142()
irq 3 handler nfeth_interrupt+0x0/0x194 enabled interrupts
Modules linked in:
Call Trace: [<000299b2>] warn_slowpath_common+0x48/0x6a
[<000299c0>] warn_slowpath_common+0x56/0x6a
[<00029a4c>] warn_slowpath_fmt+0x2a/0x32
[<0005b34c>] handle_irq_event_percpu+0x134/0x142
[<0005b34c>] handle_irq_event_percpu+0x134/0x142
[<0000a584>] nfeth_interrupt+0x0/0x194
[<001ba0a8>] schedule_preempt_disabled+0x0/0xc
[<0005b37a>] handle_irq_event+0x20/0x2c
[<0005add4>] generic_handle_irq+0x2c/0x3a
[<00002ab6>] do_IRQ+0x20/0x32
[<0000289e>] auto_irqhandler_fixup+0x4/0x6
[<00003144>] cpu_idle+0x22/0x2e
[<001b8a78>] printk+0x0/0x18
[<0024d112>] start_kernel+0x37a/0x386
[<0003021d>] __do_proc_dointvec+0xb1/0x366
[<0003021d>] __do_proc_dointvec+0xb1/0x366
[<0024c31e>] _sinittext+0x31e/0x9c0
After invoking the irq's handler the kernel sees !irqs_disabled()
and concludes that the handler erroneously enabled interrupts.
However, debugging shows that !irqs_disabled() is true even before
the handler is invoked, which indicates a problem in the platform
code rather than the specific driver.
The warning does not occur in 3.1 or older kernels.
It turns out that the ALLOWINT definition for Atari is incorrect.
The Atari definition of ALLOWINT is ~0x400, the stated purpose of
that is to avoid taking HSYNC interrupts. irqs_disabled() returns
true if the 3-bit ipl & 4 is non-zero. The nfeth interrupt runs at
ipl 3 (it's autovector 3), but 3 & 4 is zero so irqs_disabled() is
false, and the warning above is generated.
When interrupts are explicitly disabled, ipl is set to 7. When they
are enabled, ipl is masked with ALLOWINT. On Atari this will result
in ipl = 3, which blocks interrupts at ipl 3 and below. So how come
nfeth interrupts at ipl 3 are received at all? That's because ipl
is reset to 2 by Atari-specific code in default_idle(), again with
the stated purpose of blocking HSYNC interrupts. This discrepancy
means that ipl 3 can remain blocked for longer than intended.
Both default_idle() and falcon_hblhandler() identify HSYNC with
ipl 2, and the "Atari ST/.../F030 Hardware Register Listing" agrees,
but ALLOWINT is defined as if HSYNC was ipl 3.
[As an experiment I modified default_idle() to reset ipl to 3, and
as expected that resulted in all nfeth interrupts being blocked.]
The fix is simple: define ALLOWINT as ~0x500 instead. This makes
arch_local_irq_enable() consistent with default_idle(), and prevents
the !irqs_disabled() problems for ipl 3 interrupts.
Tested on Atari running in an Aranym VM.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Michael Schmitz <schmitzmic@googlemail.com> (on Falcon/CT60)
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
For now, it just contains the hack for cirrusfb on Amiga, which is moved
out of <video/vga.h> with some slight modifications (use raw_*() instead of
z_*(), which are defined on all m68k platforms).
This makes it safe to include <video/vga.h> in all contexts. Before it
could fail to compile with
include/video/vga.h: In function ‘vga_mm_r’:
include/video/vga.h:242: error: implicit declaration of function ‘z_readb’
include/video/vga.h: In function ‘vga_mm_w’:
include/video/vga.h:247: error: implicit declaration of function ‘z_writeb’
include/video/vga.h: In function ‘vga_mm_w_fast’:
include/video/vga.h:253: error: implicit declaration of function ‘z_writew’
or
include/video/vga.h:23:21: error: asm/vga.h: No such file or directory
depending on the value of CONFIG_AMIGA.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
drivers/usb/musb/musb_io.h provides default implementations for
{read,write}s[bwl]() on most platforms, some of which will conflict soon
with platform-specific counterparts on m68k.
To avoid having to add more platform-specific checks to musb_io.h later,
make sure {read,write}s[bwl]() are always defined on m68k, and disable the
default implementations in musb_io.h on m68k, like is already done for
several other architectures.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Felipe Balbi <balbi@ti.com>
Commit d065bd810b
(mm: retry page fault when blocking on disk transfer) and
commit 37b23e0525
(x86,mm: make pagefault killable)
The above commits introduced changes into the x86 pagefault handler
for making the page fault handler retryable as well as killable.
These changes reduce the mmap_sem hold time, which is crucial
during OOM killer invocation.
Port these changes to m68k.
Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Device interrupts numbers were changed to unsigned int in 1997, the year
IRQ_MACHSPEC was killed as well.
Also kill a related cast while we're at it.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: netdev@vger.kernel.org
module_init() maps to device_initcall(), opening the possibility of
race conditions between platform_driver_probe() and registering platform
devices.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
The CONFIG_FEC2 define was removed from the kernel many versions ago.
But it is still being used to set the multi-function pins when compiling
for a ColdFire 527[45] SoC that has 2 ethernet interfaces. Remove the
last remaining uses of this define, and so fix the setting of the pins
for the 2nd ethernet interface.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The second ColdFire FEC ethernet device should have an id number of 1,
not 0. Otherwise it clashes with the first FEC ethernet device.
On booting a kernel on a 5275 based board you will get messages out of
the kernel like this:
<4>------------[ cut here ]------------
<4>WARNING: at fs/sysfs/dir.c:508 0x0a8b50()
<4>sysfs: cannot create duplicate filename 'fec.0'
And likely you won't be able to completely boot up after this at all.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The 68EZ328/bootlogo.h is not actually used in the 68EZ328 platform code
at all. It is used by the 68VZ328 platform code though, so move it to be
with the rest of the 68VZ328 platform code.
Commit c0e0c89c08 ("fix broken boot logo
inclusion") modified the bootlogo code to not be included in asm code.
Modify 68VZ328/bootlogo.h so that the bootlogo bit map is named correctly
for direct use in the C code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The 68EZ328 and 68VZ328 platforms currently try to process their bootlogo.h
to make it clean to include in asm files. This is no longer used, the
bootlogo.h file is now included only in C code, so remove all the processing
code in the 68EZ328 and 68VZ328 Makefiles.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
When a host stops or suspends a VM it will set a flag to show this. The
watchdog will use these functions to determine if a softlockup is real, or the
result of a suspended VM.
Signed-off-by: Eric B Munson <emunson@mgebm.net>
asm-generic changes Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
On multi-platform kernels, the Q40/Q60 platform devices should be
registered when running on Q40/Q60 only. Else it may crash later.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
On multi-platform kernels, the Mac platform devices should be registered
when running on Mac only. Else it may crash later.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org
After commit 9ffc93f203 ("Remove all
CC init/main.o
In file included from include/linux/mm.h:15:0,
from include/linux/ring_buffer.h:5,
from include/linux/ftrace_event.h:4,
from include/trace/syscall.h:6,
from include/linux/syscalls.h:78,
from init/main.c:16:
include/linux/debug_locks.h: In function ‘__debug_locks_off’:
include/linux/debug_locks.h:16:2: error: implicit declaration of function ‘xchg’
There is no indirect inclusions of the new asm/cmpxchg.h for m68k here.
Looking at most other architectures they include asm/cmpxchg.h in their
asm/atomic.h. M68k currently does not do this. Including this in atomic.h
fixes all m68k build problems.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Pull x32 support for x86-64 from Ingo Molnar:
"This tree introduces the X32 binary format and execution mode for x86:
32-bit data space binaries using 64-bit instructions and 64-bit kernel
syscalls.
This allows applications whose working set fits into a 32 bits address
space to make use of 64-bit instructions while using a 32-bit address
space with shorter pointers, more compressed data structures, etc."
Fix up trivial context conflicts in arch/x86/{Kconfig,vdso/vma.c}
* 'x86-x32-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (71 commits)
x32: Fix alignment fail in struct compat_siginfo
x32: Fix stupid ia32/x32 inversion in the siginfo format
x32: Add ptrace for x32
x32: Switch to a 64-bit clock_t
x32: Provide separate is_ia32_task() and is_x32_task() predicates
x86, mtrr: Use explicit sizing and padding for the 64-bit ioctls
x86/x32: Fix the binutils auto-detect
x32: Warn and disable rather than error if binutils too old
x32: Only clear TIF_X32 flag once
x32: Make sure TS_COMPAT is cleared for x32 tasks
fs: Remove missed ->fds_bits from cessation use of fd_set structs internally
fs: Fix close_on_exec pointer in alloc_fdtable
x32: Drop non-__vdso weak symbols from the x32 VDSO
x32: Fix coding style violations in the x32 VDSO code
x32: Add x32 VDSO support
x32: Allow x32 to be configured
x32: If configured, add x32 system calls to system call tables
x32: Handle process creation
x32: Signal-related system calls
x86: Add #ifdef CONFIG_COMPAT to <asm/sys_ia32.h>
...
Fix the m68k versions of xchg() and cmpxchg() to fail to link if given an
inappropriately sized pointer rather than BUG()'ing at runtime.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Greg Ungerer <gerg@uclinux.org>
cc: linux-m68k@lists.linux-m68k.org
Pull input subsystem updates from Dmitry Torokhov:
"- we finally merged driver for USB version of Synaptics touchpads
(I guess most commonly found in IBM/Lenovo keyboard/touchpad combo);
- a bunch of new drivers for embedded platforms (Cypress
touchscreens, DA9052 OnKey, MAX8997-haptic, Ilitek ILI210x
touchscreens, TI touchscreen);
- input core allows clients to specify desired clock source for
timestamps on input events (EVIOCSCLOCKID ioctl);
- input core allows querying state of all MT slots for given event
code via EVIOCGMTSLOTS ioctl;
- various driver fixes and improvements."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (45 commits)
Input: ili210x - add support for Ilitek ILI210x based touchscreens
Input: altera_ps2 - use of_match_ptr()
Input: synaptics_usb - switch to module_usb_driver()
Input: convert I2C drivers to use module_i2c_driver()
Input: convert SPI drivers to use module_spi_driver()
Input: omap4-keypad - move platform_data to <linux/platform_data>
Input: kxtj9 - who_am_i check value and initial data rate fixes
Input: add driver support for MAX8997-haptic
Input: tegra-kbc - revise device tree support
Input: of_keymap - add device tree bindings for simple key matrices
Input: wacom - fix physical size calculation for 3rd-gen Bamboo
Input: twl4030-vibra - really switch from #if to #ifdef
Input: hp680_ts_input - ensure arguments to request_irq and free_irq are compatible
Input: max8925_onkey - avoid accessing input device too early
Input: max8925_onkey - allow to be used as a wakeup source
Input: atmel-wm97xx - convert to dev_pm_ops
Input: atmel-wm97xx - set driver owner
Input: add cyttsp touchscreen maintainer entry
Input: cyttsp - remove useless checks in cyttsp_probe()
Input: usbtouchscreen - add support for Data Modul EasyTouch TP 72037
...
Pull m68knommu arch updates from Greg Ungerer:
"Includes a cleanup of the non-MMU linker script (it now almost
exclusively uses the well defined linker script support macros and
definitions). Some more merging of MMU and non-MMU common files
(specifically the arch process.c, ptrace and time.c). And a big
cleanup of the massively duplicated ColdFire device definition code.
Overall we remove about 2000 lines of code, and end up with a single
set of platform device definitions for the serial ports, ethernet
ports and QSPI ports common in most ColdFire SoCs.
I expect you will get a merge conflict on arch/m68k/kernel/process.c,
in cpu_idle(). It should be relatively strait forward to fixup."
And cpu_idle() conflict resolution was indeed trivial (merging the
nommu/mmu versions of process.c trivially conflicting with the
conversion to use the schedule_preempt_disabled() helper function)
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (57 commits)
m68knommu: factor more common ColdFire cpu reset code
m68knommu: make 528x CPU reset register addressing consistent
m68knommu: make 527x CPU reset register addressing consistent
m68knommu: make 523x CPU reset register addressing consistent
m68knommu: factor some common ColdFire cpu reset code
m68knommu: move old ColdFire timers init from CPU init to timers code
m68knommu: clean up init code in ColdFire 532x startup
m68knommu: clean up init code in ColdFire 528x startup
m68knommu: clean up init code in ColdFire 523x startup
m68knommu: merge common ColdFire QSPI platform setup code
m68knommu: make 532x QSPI platform addressing consistent
m68knommu: make 528x QSPI platform addressing consistent
m68knommu: make 527x QSPI platform addressing consistent
m68knommu: make 5249 QSPI platform addressing consistent
m68knommu: make 523x QSPI platform addressing consistent
m68knommu: make 520x QSPI platform addressing consistent
m68knommu: merge common ColdFire FEC platform setup code
m68knommu: make 532x FEC platform addressing consistent
m68knommu: make 528x FEC platform addressing consistent
m68knommu: make 527x FEC platform addressing consistent
...
Pull networking merge from David Miller:
"1) Move ixgbe driver over to purely page based buffering on receive.
From Alexander Duyck.
2) Add receive packet steering support to e1000e, from Bruce Allan.
3) Convert TCP MD5 support over to RCU, from Eric Dumazet.
4) Reduce cpu usage in handling out-of-order TCP packets on modern
systems, also from Eric Dumazet.
5) Support the IP{,V6}_UNICAST_IF socket options, making the wine
folks happy, from Erich Hoover.
6) Support VLAN trunking from guests in hyperv driver, from Haiyang
Zhang.
7) Support byte-queue-limtis in r8169, from Igor Maravic.
8) Outline code intended for IP_RECVTOS in IP_PKTOPTIONS existed but
was never properly implemented, Jiri Benc fixed that.
9) 64-bit statistics support in r8169 and 8139too, from Junchang Wang.
10) Support kernel side dump filtering by ctmark in netfilter
ctnetlink, from Pablo Neira Ayuso.
11) Support byte-queue-limits in gianfar driver, from Paul Gortmaker.
12) Add new peek socket options to assist with socket migration, from
Pavel Emelyanov.
13) Add sch_plug packet scheduler whose queue is controlled by
userland daemons using explicit freeze and release commands. From
Shriram Rajagopalan.
14) Fix FCOE checksum offload handling on transmit, from Yi Zou."
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1846 commits)
Fix pppol2tp getsockname()
Remove printk from rds_sendmsg
ipv6: fix incorrent ipv6 ipsec packet fragment
cpsw: Hook up default ndo_change_mtu.
net: qmi_wwan: fix build error due to cdc-wdm dependecy
netdev: driver: ethernet: Add TI CPSW driver
netdev: driver: ethernet: add cpsw address lookup engine support
phy: add am79c874 PHY support
mlx4_core: fix race on comm channel
bonding: send igmp report for its master
fs_enet: Add MPC5125 FEC support and PHY interface selection
net: bpf_jit: fix BPF_S_LDX_B_MSH compilation
net: update the usage of CHECKSUM_UNNECESSARY
fcoe: use CHECKSUM_UNNECESSARY instead of CHECKSUM_PARTIAL on tx
net: do not do gso for CHECKSUM_UNNECESSARY in netif_needs_gso
ixgbe: Fix issues with SR-IOV loopback when flow control is disabled
net/hyperv: Fix the code handling tx busy
ixgbe: fix namespace issues when FCoE/DCB is not enabled
rtlwifi: Remove unused ETH_ADDR_LEN defines
igbvf: Use ETH_ALEN
...
Fix up fairly trivial conflicts in drivers/isdn/gigaset/interface.c and
drivers/net/usb/{Kconfig,qmi_wwan.c} as per David.
Here's the big serial and tty merge for the 3.4-rc1 tree.
There's loads of fixes and reworks in here from Jiri for the tty layer,
and a number of patches from Alan to help try to wrestle the vt layer
into a sane model.
Other than that, lots of driver updates and fixes, and other minor
stuff, all detailed in the shortlog.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY/serial patches from Greg KH:
"tty and serial merge for 3.4-rc1
Here's the big serial and tty merge for the 3.4-rc1 tree.
There's loads of fixes and reworks in here from Jiri for the tty
layer, and a number of patches from Alan to help try to wrestle the vt
layer into a sane model.
Other than that, lots of driver updates and fixes, and other minor
stuff, all detailed in the shortlog."
* tag 'tty-3.3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (132 commits)
serial: pxa: add clk_prepare/clk_unprepare calls
TTY: Wrong unicode value copied in con_set_unimap()
serial: PL011: clear pending interrupts
serial: bfin-uart: Don't access tty circular buffer in TX DMA interrupt after it is reset.
vt: NULL dereference in vt_do_kdsk_ioctl()
tty: serial: vt8500: fix annotations for probe/remove
serial: remove back and forth conversions in serial_out_sync
serial: use serial_port_in/out vs serial_in/out in 8250
serial: introduce generic port in/out helpers
serial: reduce number of indirections in 8250 code
serial: delete useless void casts in 8250.c
serial: make 8250's serial_in shareable to other drivers.
serial: delete last unused traces of pausing I/O in 8250
pch_uart: Add module parameter descriptions
pch_uart: Use existing default_baud in setup_console
pch_uart: Add user_uartclk parameter
pch_uart: Add Fish River Island II uart clock quirks
pch_uart: Use uartclk instead of base_baud
mpc5200b/uart: select more tolerant uart prescaler on low baudrates
tty: moxa: fix bit test in moxa_start()
...
All num, magic and owner are set by alloc_tty_driver. No need to
re-set them on each allocation site.
pti driver sets something different to what it passes to
alloc_tty_driver. It is not a bug, since we don't use the lines
parameter in any way. Anyway this is fixed, and now we do the right
thing.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Acked-by: Tilman Schmidt <tilman@imap.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Most of the more modern ColdFire cores use the same code to reset the CPU
(but it is different to most of the earlier cores). Currently that is
duplicated in each of the sub-arch files. Pull out this common code and
out a single copy of it with the other common reset code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all MCF_RCR (CPU reset register) addressing consistent across all
ColdFire CPU family members that use it then we will be able to remove the
duplicated copies of the code that use it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all MCF_RCR (CPU reset register) addressing consistent across all
ColdFire CPU family members that use it then we will be able to remove the
duplicated copies of the code that use it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all MCF_RCR (CPU reset register) addressing consistent across all
ColdFire CPU family members that use it then we will be able to remove the
duplicated copies of the code that use it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
A number of the early ColdFire cores use the same code to reset the CPU.
Currently that is duplicated in each of the sub-arch files. Pull out this
common code and use a single copy of it for all CPU types that use it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The original ColdFire timer interrupt setup is used by most of the users
of the original ColdFire timer code. But the code is currently duplicated
in each of the ColdFire CPU specific init files. Move it to the timers
code that it is really part of. It is strait forward to make it conditional
on also having the original interrupt engine that it needs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
We can move all the init calls in the initcall code into the more general
arch setup code (which is config_BSP() here). That makes the 532x consistent
with other ColdFire CPUs setup code. It means we can get rid of the initcall
setup here all together. Also make sure we set the arch mach_reset function
pointer to get the local arch reset code called on reset.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
We can move all the init calls in the initcall code into the more general
arch setup code (which is config_BSP() here). That makes the 528x consistent
with other ColdFire CPUs setup cod. It means we can get rif of the initcall
setup here all together.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
We can move the QSPI init call to the more general config_BSP() code on
the 523x platorm setup code. Then we can remove the initcall code all
together.
We can also remove the un-needed include of mcfuart.h while we are
cleaning up here too.
Also I noticed that we are not calling the fec_init() code here, and we
should be doing that. Put that back in too.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire QSPI is common to quite a few ColdFire CPUs. No need to duplicate
its platform setup code for every CPU family member that has it. Merge all the
setup code into a single shared file.
This also results in few platforms no longer needing any local platform
setup code. In those cases remove the empty devices array and initcall
code as well.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all QSPI (SPI protocol) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and code and use a single setup for all.
So modify the ColdFire 532x QSPI addressing so that:
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
. move chip select definitions (CS) to appropriate header
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all QSPI (SPI protocol) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and code and use a single setup for all.
So modify the ColdFire 528x QSPI addressing so that:
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
. move chip select definitions (CS) to appropriate header
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all QSPI (SPI protocol) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and code and use a single setup for all.
So modify the ColdFire 527x QSPI addressing so that:
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
. move chip select definitions (CS) to appropriate header
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all QSPI (SPI protocol) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and code and use a single setup for all.
So modify the ColdFire 5249 QSPI addressing so that:
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
. move chip select definitions (CS) to appropriate header
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all QSPI (SPI protocol) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and code and use a single setup for all.
So modify the ColdFire 523x QSPI addressing so that:
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
. move chip select definitions (CS) to appropriate header
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all QSPI (SPI protocol) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and code and use a single setup for all.
So modify the ColdFire 520x QSPI addressing so that:
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
. move chip select definitions (CS) to appropriate header
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire FEC is common to quite a few ColdFire CPUs. No need to duplicate
its platform setup code for every CPU family member that has it. Merge all the
setup code into a single shared file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all FEC (ethernet) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and use a single setup for all.
So modify the ColdFire 532x FEC addressing so that:
. FECs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all FEC (ethernet) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and use a single setup for all.
So modify the ColdFire 528x FEC addressing so that:
. FECs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all FEC (ethernet) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and use a single setup for all.
So modify the ColdFire 527x FEC addressing so that:
. FECs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all FEC (ethernet) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and use a single setup for all.
So modify the ColdFire 5272 FEC addressing so that:
. FECs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all FEC (ethernet) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and use a single setup for all.
So modify the ColdFire 523x FEC addressing so that:
. FECs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all FEC (ethernet) addressing consistent across all ColdFire
family members then we will be able to remove the duplicated plaform data
and use a single setup for all.
So modify the ColdFire 520x FEC addressing so that:
. FECs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Some ColdFire CPU UART hardware modules can configure the IRQ they use.
Currently the same setup code is duplicated in the init code for each of
these ColdFire CPUs. Merge all this code to a single instance.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire UART is common to all ColdFire CPU's. No need to duplicate
its platform setup code for every CPU family member. Merge all the setup
code into a single shared file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Simplify the UART setup code so that it no longer loops for each UART
present. Just make it do all the work it needs in a single function.
This will make the code easier to share when we move to a single set
of platform data for ColdFire UARTs.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 54xx UART addressing so that:
. UARTs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 5407 UART addressing so that:
. UARTs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 532x UART addressing so that:
. UARTs are numbered from 0 up
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 528x UART addressing so that:
. UARTs are numbered from 0 up
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 5307 UART addressing so that:
. UARTs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 527x UART addressing so that:
. UARTs are numbered from 0 up
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 5272 UART addressing so that:
. UARTs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 5249 UART addressing so that:
. UARTs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 523x UART addressing so that:
. UARTs are numbered from 0 up
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 520x UART addressing so that:
. UARTs are numbered from 0 up
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
If we make all UART addressing consistent across all ColdFire family members
then we will be able to remove the duplicated plaform data and use a single
setup for all.
So modify the ColdFire 5206 UART addressing so that:
. UARTs are numbered from 0 up
. base addresses are absolute (not relative to MBAR peripheral register)
. use a common name for IRQs used
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The MMU and non-MMU varients of the m68k arch process.c code are pretty
much the same. Only a few minor details differ between the two. The
majority of the difference is to deal with having or wanting hardware FPU
support. So merge them back into a single process.c file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
The classic m68k code has always supported an FPU (although it may have
been a software emulated one). The non-MMU m68k code has never supported FPU
hardware. To help in merging common code create a configation setting that
signifies if we are builing in FPU support or not.
This switch, CONFIG_FPU, is set as per the current use cases. So it is
always enabled if CONFIG_MMU is set, and disabled otherwise. With a little
extra code it will be possible to disable it on the classic m68k platforms
as well, and to enable it on non-MMU platforms that do have hardware FPU.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Most of the code in the non-mmu ptrace_no.c file is the same as the mmu
version ptrace_mm.c. So merge them back into a single file.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
The set_rtc_mmss() function is defined "static inline" but is never used
in this file. Remove it.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
There is only trivial differences between the mmu time_mm.c and non-mmu
time_no.c files. Merge them back into a single time.c.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
The CONFIG_GENERIC_CMOS_UPDATE switch is always enabled for the non-MMU
m68k case. But the underlying code to support it, update_persistent_clock(),
doesn't end up doing anything on the currently supported non-MMU platforms.
No platforms supply the necessary function support for writing back the RTC.
So lets remove this option and support code. This also brings m68knommu
in line with the m68k, which doesn't enabled this switch either.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
With a few small changes we can make the m68knommu timer init code the
same as the m68k code. By using the mach_sched_init function pointer
and reworking the current timer initializers to keep track of the common
m68k timer_interrupt() handler we end up with almost identical code for
m68knommu.
This will allow us to more easily merge the mmu and non-mmu m68k time.c
in future patches.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The read_persistent_clock() code is different on m68knommu, for really no
reason. With a few changes to support function names and some code
re-organization the code can be made the same.
This will make it easier to merge the arch/m68k/kernel/time.c for m68k and
m68knommu in a future patch.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The base of the real RAM resident hardware vectors, _ramvec, is declared in
our asm/traps.h. No need to have local declarations spread around in other
files that use this. So remove them.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
There is a lot of years of collected cruft in the m68knommu linker script.
Clean it all up and use the well defined linker script support macros.
Support is maintained for building both ROM/FLASH based and RAM based setups.
No major changes to section layouts, though the rodata section is now lumped
in with the read/write data section.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire MBAR register that holds the mapping of the peripheral region
on some ColdFire CPUs is configurable. It can be configured at some address
different to that of the bootloader that loaded the kernel. So hard set
the MBAR register mapping at kernel startup time.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Conflicts:
drivers/net/ethernet/sfc/rx.c
Overlapping changes in drivers/net/ethernet/sfc/rx.c, one to change
the rx_buf->is_page boolean into a set of u16 flags, and another to
adjust how ->ip_summed is initialized.
Signed-off-by: David S. Miller <davem@davemloft.net>
This is useful for testing RX handling of frames with bad
CRCs.
Requires driver support to actually put the packet on the
wire properly.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This one specifies where to start MSG_PEEK-ing queue data from. When
set to negative value means that MSG_PEEK works as ususally -- peeks
from the head of the queue always.
When some bytes are peeked from queue and the peeking offset is non
negative it is moved forward so that the next peek will return next
portion of data.
When non-peeking recvmsg occurs and the peeking offset is non negative
is is moved backward so that the next peek will still peek the proper
data (i.e. the one that would have been picked if there were no non
peeking recv in between).
The offset is set using per-proto opteration to let the protocol handle
the locking issues and to check whether the peeking offset feature is
supported by the protocol the socket belongs to.
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the SG bit is set in MMUTR the page is accessible for all
userspace processes (ignoring the ASID). So a process might randomly
access a page from a different process which had a shared page
(from shared memory) in its context.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
We had problems accessing our NOR flash trough mtd. The system always got
stuck at attaching UBI using ubiattach if booted from NFS or after mounting
squashfs as rootfs directly from NOR flash.
After some testing of the new changes introduced from v3.2-rc1 to v3.2-rc7
we had to apply the following patch to get mtd working again.
[gerg: The problem was ultimately caused by allocated kernel pages not having
the shared (SG) bit set. Without the SG bit set the MMU will look for page
matches incorporating the ASID as well. Things like module regions allocated
using vmalloc would fault when other processes run. ]
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The return path from an exception was checking too many bits in the
thread_info->flags, and getting stuck calling do_signal(). There was
no work to do, we should only be checking the low 8 bits (as per comments
and definitions in arch/m68k/include/asm/thread_info.h).
This fixes the stuck process problem when using strace.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: Fix assembler constraint to prevent overeager gcc optimisation
mac_esp: rename irq
mac_scsi: dont enable mac_scsi irq before requesting it
macfb: fix black and white modes
m68k/irq: Remove obsolete IRQ_FLG_* definitions
Fix up trivial conflict in arch/m68k/kernel/process_mm.c as per Geert.
Convert the driver to standard spilt model arch-specific code registers
platform device to which driver code can bind later.
Also request IRQ immediately upon binding to the device instead of doing
this when serio port is being opened.
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Passing the address of a variable as an operand to an asm statement
doesn't mark the value of this variable as used, so gcc may optimize its
initialisation away. Fix this by using the "m" constraint instead.
Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: stable@vger.kernel.org
frv, h8300, m68k, microblaze, openrisc, score, um and xtensa currently
do not register a CPU device. Add the config option GENERIC_CPU_DEVICES
which causes a generic CPU device to be registered for each present CPU,
and make all these architectures select it.
Richard Weinberger <richard@nod.at> covered UML and suggested using
per_cpu.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Many architectures don't want to pull in iomap.c,
so they ended up duplicating pci_iomap from that file.
That function isn't trivial, and we are going to modify it
https://lkml.org/lkml/2011/11/14/183
so the duplication hurts.
This reduces the scope of the problem significantly,
by moving pci_iomap to a separate file and
referencing that from all architectures.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
lib: use generic pci_iomap on all architectures
Many architectures don't want to pull in iomap.c,
so they ended up duplicating pci_iomap from that file.
That function isn't trivial, and we are going to modify it
https://lkml.org/lkml/2011/11/14/183
so the duplication hurts.
This reduces the scope of the problem significantly,
by moving pci_iomap to a separate file and
referencing that from all architectures.
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
alpha: drop pci_iomap/pci_iounmap from pci-noop.c
mn10300: switch to GENERIC_PCI_IOMAP
mn10300: add missing __iomap markers
frv: switch to GENERIC_PCI_IOMAP
tile: switch to GENERIC_PCI_IOMAP
tile: don't panic on iomap
sparc: switch to GENERIC_PCI_IOMAP
sh: switch to GENERIC_PCI_IOMAP
powerpc: switch to GENERIC_PCI_IOMAP
parisc: switch to GENERIC_PCI_IOMAP
mips: switch to GENERIC_PCI_IOMAP
microblaze: switch to GENERIC_PCI_IOMAP
arm: switch to GENERIC_PCI_IOMAP
alpha: switch to GENERIC_PCI_IOMAP
lib: add GENERIC_PCI_IOMAP
lib: move GENERIC_IOMAP to lib/Kconfig
Fix up trivial conflicts due to changes nearby in arch/{m68k,score}/Kconfig
* 'pm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (76 commits)
PM / Hibernate: Implement compat_ioctl for /dev/snapshot
PM / Freezer: fix return value of freezable_schedule_timeout_killable()
PM / shmobile: Allow the A4R domain to be turned off at run time
PM / input / touchscreen: Make st1232 use device PM QoS constraints
PM / QoS: Introduce dev_pm_qos_add_ancestor_request()
PM / shmobile: Remove the stay_on flag from SH7372's PM domains
PM / shmobile: Don't include SH7372's INTCS in syscore suspend/resume
PM / shmobile: Add support for the sh7372 A4S power domain / sleep mode
PM: Drop generic_subsys_pm_ops
PM / Sleep: Remove forward-only callbacks from AMBA bus type
PM / Sleep: Remove forward-only callbacks from platform bus type
PM: Run the driver callback directly if the subsystem one is not there
PM / Sleep: Make pm_op() and pm_noirq_op() return callback pointers
PM/Devfreq: Add Exynos4-bus device DVFS driver for Exynos4210/4212/4412.
PM / Sleep: Merge internal functions in generic_ops.c
PM / Sleep: Simplify generic system suspend callbacks
PM / Hibernate: Remove deprecated hibernation snapshot ioctls
PM / Sleep: Fix freezer failures due to racy usermodehelper_is_disabled()
ARM: S3C64XX: Implement basic power domain support
PM / shmobile: Use common always on power domain governor
...
Fix up trivial conflict in fs/xfs/xfs_buf.c due to removal of unused
XBT_FORCE_SLEEP bit
* 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits)
reiserfs: Properly display mount options in /proc/mounts
vfs: prevent remount read-only if pending removes
vfs: count unlinked inodes
vfs: protect remounting superblock read-only
vfs: keep list of mounts for each superblock
vfs: switch ->show_options() to struct dentry *
vfs: switch ->show_path() to struct dentry *
vfs: switch ->show_devname() to struct dentry *
vfs: switch ->show_stats to struct dentry *
switch security_path_chmod() to struct path *
vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb
vfs: trim includes a bit
switch mnt_namespace ->root to struct mount
vfs: take /proc/*/mounts and friends to fs/proc_namespace.c
vfs: opencode mntget() mnt_set_mountpoint()
vfs: spread struct mount - remaining argument of next_mnt()
vfs: move fsnotify junk to struct mount
vfs: move mnt_devname
vfs: move mnt_list to struct mount
vfs: switch pnode.h macros to struct mount *
...
* 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (73 commits)
arm: fix up some samsung merge sysdev conversion problems
firmware: Fix an oops on reading fw_priv->fw in sysfs loading file
Drivers:hv: Fix a bug in vmbus_driver_unregister()
driver core: remove __must_check from device_create_file
debugfs: add missing #ifdef HAS_IOMEM
arm: time.h: remove device.h #include
driver-core: remove sysdev.h usage.
clockevents: remove sysdev.h
arm: convert sysdev_class to a regular subsystem
arm: leds: convert sysdev_class to a regular subsystem
kobject: remove kset_find_obj_hinted()
m86k: gpio - convert sysdev_class to a regular subsystem
mips: txx9_sram - convert sysdev_class to a regular subsystem
mips: 7segled - convert sysdev_class to a regular subsystem
sh: dma - convert sysdev_class to a regular subsystem
sh: intc - convert sysdev_class to a regular subsystem
power: suspend - convert sysdev_class to a regular subsystem
power: qe_ic - convert sysdev_class to a regular subsystem
power: cmm - convert sysdev_class to a regular subsystem
s390: time - convert sysdev_class to a regular subsystem
...
Fix up conflicts with 'struct sysdev' removal from various platform
drivers that got changed:
- arch/arm/mach-exynos/cpu.c
- arch/arm/mach-exynos/irq-eint.c
- arch/arm/mach-s3c64xx/common.c
- arch/arm/mach-s3c64xx/cpu.c
- arch/arm/mach-s5p64x0/cpu.c
- arch/arm/mach-s5pv210/common.c
- arch/arm/plat-samsung/include/plat/cpu.h
- arch/powerpc/kernel/sysfs.c
and fix up cpu_is_hotpluggable() as per Greg in include/linux/cpu.h
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: (21 commits)
m68k/mac: Make CONFIG_HEARTBEAT unavailable on Mac
m68k/serial: Remove references to obsolete serial config options
m68k/net: Remove obsolete IRQ_FLG_* users
m68k: Don't comment out syscalls used by glibc
m68k/atari: Move declaration of atari_SCC_reset_done to header file
m68k/serial: Remove references to obsolete CONFIG_SERIAL167
m68k/hp300: Export hp300_ledstate
m68k: Initconst section fixes
m68k/mac: cleanup macro case
mac_scsi: fix mac_scsi on some powerbooks
m68k/mac: fix powerbook 150 adb_type
m68k/mac: fix baboon irq disable and shutdown
m68k/mac: oss irq fixes
m68k/mac: fix nubus slot irq disable and shutdown
m68k/mac: enable via_alt_mapping on performa 580
m68k/mac: cleanup forward declarations
m68k/mac: cleanup mac_irq_pending
m68k/mac: cleanup mac_clear_irq
m68k/mac: early console
m68k/mvme16x: Add support for EARLY_PRINTK
...
Fix up trivial conflict in arch/m68k/Kconfig.debug due to new
EARLY_PRINTK config option addition clashing with movement of the
BOOTPARAM options.
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: (56 commits)
m68k: allow ColdFire 547x and 548x CPUs to be built with MMU enabled
m68k/Kconfig: Separate classic m68k and coldfire early
m68k: add ColdFire with MMU enabled support to the m68k mem init code
m68k: do not use m68k startup or interrupt code for ColdFire CPUs
m68k: add ColdFire FPU support for the V4e ColdFire CPUs
m68k: adjustments to stack frame for ColdFire with MMU enabled
m68k: use non-MMU linker script for ColdFire MMU builds
m68k: ColdFire with MMU enabled uses same clocking code as non-MMU
m68k: add code to setup a ColdFire 54xx platform when MMU enabled
m68k: use non-MMU entry.S code when compiling for ColdFire CPU
m68k: create ColdFire MMU pgalloc code
m68k: compile appropriate mm arch files for ColdFire MMU support
m68k: ColdFire V4e MMU paging init code and miss handler
m68k: use ColdFire MMU read/write bit flags when ioremapping
m68k: modify cache push and clear code for ColdFire with MMU enable
m68k: use tracehook_report_syscall_entry/exit for ColdFire MMU ptrace path
m68k: ColdFire V4e MMU context support code
m68k: MMU enabled ColdFire needs 8k ELF alignment
m68k: set ColdFire MMU page size
m68k: define PAGE_OFFSET_RAW for ColdFire CPU with MMU enabled
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1958 commits)
net: pack skb_shared_info more efficiently
net_sched: red: split red_parms into parms and vars
net_sched: sfq: extend limits
cnic: Improve error recovery on bnx2x devices
cnic: Re-init dev->stats_addr after chip reset
net_sched: Bug in netem reordering
bna: fix sparse warnings/errors
bna: make ethtool_ops and strings const
xgmac: cleanups
net: make ethtool_ops const
vmxnet3" make ethtool ops const
xen-netback: make ops structs const
virtio_net: Pass gfp flags when allocating rx buffers.
ixgbe: FCoE: Add support for ndo_get_fcoe_hbainfo() call
netdev: FCoE: Add new ndo_get_fcoe_hbainfo() call
igb: reset PHY after recovering from PHY power down
igb: add basic runtime PM support
igb: Add support for byte queue limits.
e1000: cleanup CE4100 MDIO registers access
e1000: unmap ce4100_gbe_mdio_base_virt in e1000_remove
...
This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file,
and it fixes the build error in the arch/x86/kernel/microcode_core.c
file, that the merge did not catch.
The microcode_core.c patch was provided by Stephen Rothwell
<sfr@canb.auug.org.au> who was invaluable in the merge issues involved
with the large sysdev removal process in the driver-core tree.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The ColdFire 547x and 548x CPUs have internal MMU hardware. All code
to support this is now in, so we can build kernels with it enabled.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
While you can build multiplatform kernels for machines with classic
m68k processors, you cannot mix support for classic m68k and coldfire
processors. To avoid such hybrid kernels, introduce CONFIG_M68KCLASSIC
as an antipole for CONFIG_COLDFIRE, and make all specific processor
support depend on one of them.
All classic m68k machine support also needs to depend on this.
The defaults (CONFIG_M68KCLASSIC if MMU, CONFIG_COLDFIRE if !MMU) are
chosen such to make most of the existing configs build and work.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The ColdFire has similar setup requirements to the SUN3 code, so we
use that.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
The ColdFire CPUs have their own startup and interrupt code (in the
platform/coldfire directory), and do not use the general m68k startup and
interrupt code. In fact the use of the arch/m68k/kernel/head.o is not about
CONFIG_MMU or not, it is really about the machine type we are compiling for.
Modify the selection and use of head.o to be based on the machine type.
Only select the local ints.o and vectors.o code if we are using the classic
68k CPU types (that use the conventional Morotola MMU or SUN3 MMU).
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
The V4e ColdFire CPU family also has an integrated FPU (as well as the MMU).
So add code to support this hardware along side the existing m68k FPU code.
The ColdFire FPU is of course different to all previous 68k FP units. It is
close in operation to the 68060, but not completely compatible. The biggest
issue to deal with is that the ColdFire FPU multi-move instructions are
different. It does not support multi-moving the FP control registers, and
the multi-move of the FP data registers uses a different instruction
mnemonic.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
The exception return stack adjustment required by ColdFire when running
with the MMU enabled is not completely identical to 680x0 processors.
Specifically the format type 4 stack frame doesn't need any stack
adjustment on exception return. And the ColdFire always must return with
a frame type of 4, not 0.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Use the non-MMU linker script for ColdFire builds when we are building
for MMU enabled. The image layout is correct for loading on existing
ColdFire dev boards. The only addition required to the current non-MMU
linker script is to add support for the fixup section.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
We want to use the same timer support code for ColdFire CPU's when
running with MMU enabled or not. So use the same time_no.c code even
when the MMU is enabled for ColdFire. This also means we do not want
CONFIG_ARCH_USES_GETTIMEOFFSET set, since that code is only in time_mm.c.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
We use the same setup code for ColdFire MMU enabled platforms as
standard m68k. So add support for it to setup our 54xx ColdFire
platforms. They do not support the same bootinfo parsing as other
m68k platforms.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
No matter whether we are configured for non-MMU or MMU enabled if we are
compiling for ColdFire CPU we always use the entry_no.S code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Create a config symbol to enable when using a ColdFire MMU. We then
use that to only compile the necessary arch mm files.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
The different ColdFire V4e MMU requires its own dedicated paging init
code, and a TLB miss handler for its software driven TLB.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
The ColdFire MMU has separate read and write bits, unlike the Motorola
m68k MMU which has a single read-only bit.
Define a _PAGE_READWRITE value for the Motorola MMU, which is 0, so we
can unconditionaly include that in the page table entry bits when setting
up ioremapped pages.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
The cache push and clear code only need to flush the branch cache on
the write-through cache setup of the ColdFire V4e with MMU enabled.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
The existing ColdFire code (which is all non-mmu) for system call entry
and exit uses the more modern tracehook_report_syscall_entry()/exit()
into the ptrace code. Now that we are supporting ColdFire with MMU we
need the same hooks for these.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Add code to manage the context's of the ColdFire V4e MMU. This code is
mostly taken from the Freescale 2.6.35 kernel BSP for MMU enabled ColdFire.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Like the SUN3 hardware MMU the ColdFire MMU uses 8k pages. So we want
our ELF page size alingment to also be 8k. Modify the ELF alignment
setting.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
We use the ColdFire V4e MMU page size of 8KiB. Define PAGE_SHIFT
appropriately.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
The ColdFire CPU configurations need PAGE_OFFSET_RAW set to the base of
their RAM. It doesn't matter if they are running with the MMU enabled or
disabled, it is always set to the base of RAM.
We can keep the choices simple here and key of CONFIG_RAMBASE. If it is
defined we are on a plaftorm (ColdFire or other non-MMU systems) which
have a configurable RAM base, just use it.
Reported-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
The ColdFire V4e MMU is unlike any of the other m68k MMU hardware.
It needs its own TLB flush support code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Modify the cache setup for the ColdFire 54xx parts when running with
the MMU enabled.
We want to map the peripheral register space (MBAR region) as non
cacheable. And create an identity mapping for all of RAM for the
kernel.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Add code to deal with instruction, data and branch caches of the V4e
ColdFire cores when they are running with the MMU enabled.
This code is loosely based on Freescales changes for the caches of the
V4e ColdFire in the 2.6.25 kernel BSP. That code was originally by
Kurt Mahan <kmahan@freescale.com> (now <kmahan@xmission.com>).
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Add code to traps.c to handle MMU exceptions for the ColdFire.
Most of this code is from the 2.6.25 kernel BSP code released by
Freescale.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Define the page table size and attributes for the ColdFire V4e MMU.
Also setup the vmalloc and kmap regions we will use.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
The ColdFire V4e MMU is nothing like any of the other m68k MMU's.
So we need to create a set of definitions and support routines
for the kernels paging functions.
This is largely taken from Freescales BSP code for this (though it
was a 2.6.25 kernel). I have cleaned it up alot from the original.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Virtual memory m68k systems build with register a2 dedicated to being the
current proc pointer (non-MMU don't do this). Add code to the ColdFire
interrupt and exception processing to set this on entry, and at context
switch time. We use the same GET_CURRENT() macro that MMU enabled code
uses - modifying it so that the assembler is ColdFire clean.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Add code to the 54xx ColdFire CPU init to setup memory ready for the m68k
paged memory start up.
Some of the RAM variables that were specific to the non-mmu code paths
now need to be used during this setup, so when CONFIG_MMU is enabled.
Move these out of page_no.h and into page.h.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
The 54xx ColdFire CPU family has an internal MMU. Up to now though we
have only supported running on them with the MMU disabled.
Add code to the 54xx ColdFire init sequence to initialize the bootmem
used by the usual MMU m68k code for paging init.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
The ColdFire CPU family, and the original 68000, do not support separate
address spaces like the other 680x0 CPU types. Modify the set_fs()/get_fs()
functions and macros to use a thread_info addr_limit for address space
checking. This is pretty much what all other architectures that do not
support separate setable address spaces do.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Modify the user space access functions to support the ColdFire V4e cores
running with MMU enabled.
The ColdFire processors do not support the "moves" instruction used by
the traditional 680x0 processors for moving data into and out of another
address space. They only support the notion of a single address space,
and you use the usual "move" instruction to access that.
Create a new config symbol (CONFIG_CPU_HAS_ADDRESS_SPACES) to mark the
CPU types that support separate address spaces, and thus also support
the sfc/dfc registers and the "moves" instruction that go along with that.
The code is almost identical for user space access, so lets just use a
define to choose either the "move" or "moves" in the assembler code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
The interrupt handling support defines and code is not so much conditional
on an MMU being present (CONFIG_MMU), as it is on which type of CPU we are
building for. So make the code conditional on the CPU types instead. The
current irq.h is mostly specific to the interrupt code for the 680x0 CPUs,
so it should only be used for them.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Basic register level definitions to support the internal MMU of the
V4e ColdFire cores.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Update the show_cpuinfo() code to display info about ColdFire cores.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Create machine and CPU definitions to support the ColdFire CPU family
members that have a virtual memory management unit.
The ColdFire V4e core contains an MMU, and it is quite different to
any other 68k family members.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
Compiling for the m68knommu/68328 Palm/Pilot target you get:
LD vmlinux
arch/m68k/platform/68328/head.o: In function `L3':
(.text+0x170): undefined reference to `rom_length'
"rom_length" is not used any longer by any of the m68knommu code.
So remove it from here too.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Compiling for the m68knommu/68328 Palm/Pilot target you get:
AS arch/m68k/platform/68328/head-pilot.o
arch/m68k/platform/68328/head-pilot.S:37:23: fatal error: bootlogo.rh: No such file or directory
The build for this target used to do a conversion on a C coded boot logo
and include this in the head assembler code. This got broken by changes to
the local Makefile.
Clean all this up by just including the C coded boot logo struct in the
C code. With the appropriate alignment attribute there is no difference
to the way it can be used.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
- ATARI_MFPSER, ATARI_MIDI, MULTIFACE_III_TTY, and DN_SERIAL
have no corresponding drivers (anymore),
- Clean up SERIAL_CONSOLE dependencies and help text.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
The merge of m68knommu left the linker scripts a little disorganized.
Some consistent naming and squashing two of scripts that just include
others can simplify things a lot.
So merge the two simple including scripts, and rename the nommu script
to be consistent with the existing m68k linker scripts.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
There is a race on reading the ColdFire slice timer current count and the
total clock count so far. Interrupts are off, and we may have just missed
getting a new timer wrap event interrupt. Check for this and adjust the
cycle count and current read count accordingly.
Also the slice timer counts down from the terminal count. So in read_clk()
we need take the current clock count away from the terminal count.
Reported-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Disbale the CPU cache really early in the ColdFire startup code. We set
up some variables for RAM sizing and we want to make they stick in RAM.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The traditional 68000 processors and the newer reduced instruction set
ColdFire processors do not support the 32*32->64 multiply or the 64/32->32
divide instructions. This is not a difference based on the presence of
a hardware MMU or not.
Create a new config symbol to mark that a CPU type doesn't support the
longer multiply/divide instructions. Use this then as a basis for using
the fast 64bit based divide (in div64.h) and for linking in the extra
libgcc functions that may be required (mulsi3, divsi3, etc).
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
We have two implementations of the IP checksuming code for the m68k arch.
One uses the more advanced instructions available in 68020 and above
processors, the other uses the simpler instructions available on the
original 68000 processors and the modern ColdFire processors.
This simpler code is pretty much the same as the generic lib implementation
of the IP csum functions. So lets just switch over to using that. That
means we can completely remove the checksum_no.c file, and only have the
local fast code used for the more complex 68k CPU family members.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
There is no reason we can't make the saved fp registers the same for all
m68k types and ColdFire. There is a little wasted space, but the code
consistency and cleanliness is a big win.
sigcontext.h is an exported header, but currently there is no in-mainline
users of the !__uClinux__ and __mcoldfire__ case that this change effects.
Even better this change actually makes this structure consistent with
the out-of-mainline ColdFire/MMU code.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Commit 61619b1207 ("m68k: merge mmu and
non-mmu include/asm/entry.h files") made the trap entry code basically
the same for mmu and non-mmu builds. This means we no longer need code
to mark the stack frame as "system-call" type or other in the non-mmu
trap handling entry points. This is done in the SAVE_ALL_INT macro now.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The non-MMU builds of m68k allow a fixed kernel boot command line to
be configured at configure time. Allow this MMU builds as well.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Output a table of the kernel memory regions at boot time.
This is taken directly from the ARM architecture code that does this.
The table looks like this:
Virtual kernel memory layout:
vector : 0x00000000 - 0x00000400 ( 0 KiB)
kmap : 0xd0000000 - 0xe0000000 ( 256 MiB)
vmalloc : 0xc0000000 - 0xcfffffff ( 255 MiB)
lowmem : 0x00000000 - 0x02000000 ( 32 MiB)
.init : 0x00128000 - 0x00134000 ( 48 KiB)
.text : 0x00020000 - 0x00118d54 ( 996 KiB)
.data : 0x00118d60 - 0x00126000 ( 53 KiB)
.bss : 0x00134000 - 0x001413e0 ( 53 KiB)
This has been very useful while debugging the ColdFire virtual memory
support code. But in general I think it is nice to know extacly where
the kernel has layed everything out on boot.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The mach_gettod function pointer is only called from the time_no.c
code. So move its actual definition to there too. It is currently in
setup_no.c for no particularly good reason.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
The selection of the CONFIG_GENERIC_ATOMIC64 option is not specific to the
MMU being present and enabled. It is a property of certain CPU families.
So select it based on those CPU types being selected.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Currently on m68k we have a comeplete thread_info structure stored inside
of the thread_struct, and we also have it in the initial part of the kernel
stack. Mostly the code currently uses the one inside of the thread_struct,
only using the "task" pointer from the stack based one.
This is wasteful and confusing, we should only have the single instance of
thread_info inside the stack page. And this is the norm for all other
architectures.
This change makes m68k handle thread_info consistently on both MMU enabled
and non-MMU setups.
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
