Commit Graph

714 Commits

Author SHA1 Message Date
Paul Mundt
1da1180c6e sh: Split out the idle loop for reuse between _32/_64 variants.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:50 +09:00
Paul Mundt
f74c034d52 sh: do not latency trace idle.
Description snipped from Steven Rostedt's PPC patch:

    When idle is called, interrupts are blocked, but the idle
    function will still wake up on an interrupt. The problem is
    that the interrupt disabled latency tracer will take this call
    to idle as a latency.

    This patch disables the latency tracing when going into idle.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt
75fd24c107 sh: Tidy up backtrace formatting with kallsyms disabled.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt
9cfc9a9b6f sh: Add a simple code dumper for SUPERH32 show_regs().
This implements a simple show_code() that is in turn plugged in to
show_regs() to provide minimal code dumping at the end of the trace.

Built on top of a simple instruction disassembler derived from the
binutils opcode table.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt
edfd6da040 sh: Add a few more branch types to the branch emulator.
This plugs in some extra encodings for matching more bsr/bsrf/jsr
branches.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt
624c6a6750 sh: More movmem alias symbol exports for older compilers.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:43:49 +09:00
Paul Mundt
9ef100287a sh: Add exports for __udivsi3/__sdivsi3 and the _i4 versions.
Needed by older compilers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:54 +09:00
Paul Mundt
1aad54a99b sh: Migrate necessary libgcc bits in to arch/sh/lib for SUPERH32.
This moves in the necessary libgcc bits for SUPERH32 and drops the
libgcc linking for the regular targets. This in turn allows us to rip
out quite a few hacks both in sh_ksyms_32 and arch/sh/Makefile.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:53 +09:00
Paul Mundt
e9bf51e5cc sh: __udivdi3 -> do_div() in softfloat lib.
Inhibit the generation of __udivdi3 for the softfloat lib, use do_div()
outright.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:53 +09:00
Paul Mundt
00e825c6b9 sh: Fix clock framework compiler warnings.
CC      arch/sh/kernel/cpu/clock.o
  arch/sh/kernel/cpu/clock.c: In function 'clk_disable':
  arch/sh/kernel/cpu/clock.c:156: warning: 'return' with a value, in function returning void

Introduced by ("sh: enable and disable clocks recursively").

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:53 +09:00
Matt Fleming
fad57feba7 sh: dynamic ftrace support.
First cut at dynamic ftrace support.

Signed-off-by: Matt Fleming <mjf@gentoo.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:52 +09:00
Magnus Damm
ef6aff6884 sh: remove old sh_mobile mstpc clocks
Remove the old sh_mobile mstpcr clocks.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:52 +09:00
Magnus Damm
765786e0ae sh: sh_mobile usb clock framework support
Add clock framework support to the usb/r8a66597 driver and
adjust the cpu specific code accordingly.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:51 +09:00
Magnus Damm
af5be79a7f sh: sh_mobile usbf clock framework support
Add clock framework support to the usbf/m66592 driver and
adjust the cpu specific code accordingly.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:51 +09:00
Magnus Damm
a5616bd0f1 sh: sh_mobile i2c clock framework support
Add clock framework support to the sh_mobile i2c driver and
adjust the processor specific code accordingly.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:51 +09:00
Magnus Damm
f2eb0109fb sh: sh_mobile mstpcr clocks for sh7366
Add sh7366 mstpcr bits and information about their parent clocks.
The datasheet is pretty clear about the clocks on this device.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:51 +09:00
Magnus Damm
6e88d030a1 sh: sh_mobile mstpcr clocks for sh7343
Add sh7343 mstpcr bits and information about their parent clocks.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm
f14c017d6b sh: sh_mobile mstpcr clocks for sh7723
Add sh7723 mstpcr bits and information about their parent clocks.
The datasheet is pretty clear about the clocks on this device.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm
ecf399bdaf sh: sh_mobile mstpcr clocks for sh7722
Add sh7722 mstpcr bits and information about their parent clocks.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm
7c7e02a28b sh: new sh_mobile mstpcr clocks base code
Add base code to handle new mstpcr clocks. Make sure clock rates propagate.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm
1dc7b776d9 sh: use arch_flags for sh_mobile mstpcr clock bits
Use arch_flags to keep track of register and flag number.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm
d902d04f54 sh: sh_mobile clock divider index fix
Use divider index value instead of divider value.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Magnus Damm
d12cfac146 sh: enable and disable clocks recursively
Recurse and make sure parent clocks get enabled/disabled.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:50 +09:00
Paul Mundt
4a4a9be3eb sh: Move arch_get_unmapped_area() in to arch/sh/mm/mmap.c.
Now that arch/sh/mm/mmap.c exists, move arch_get_unmapped_area() there.
Follows the ARM change.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-12-22 18:42:49 +09:00
Paul Mundt
272966c070 serial: sh-sci: Reorder the SCxTDR write after the TDxE clear.
Under qemu there is a race between the TDxE read-and-clear and the SCxTDR
write. While on hardware it can be gauranteed that the read-and-clear
will happen prior to the character being written out, no such assumption
can be made under emulation. As this path happens with IRQs off and the
hardware itself doesn't care about the ordering, move the SCxTDR write
until after the read-and-clear.

Signed-off-by: Vladimir Prus <vladimir@codesourcery.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13 17:46:06 +09:00
Francesco VIRLINZI
2cd0ebc83d sh: Fixed the TMU0 reload value on resume
This patch fixes the TMU0 interrupt frequency on suspend/resume.
During the resume the kernel reprograms the TMU0.ClockEvent mode
but if the mode is periodic than the TMU0.TCOR is updated with
a random wrong value without taking care latest valid saved value.

There was no problem with No_HZ system where TMU0.TCOR isn't used.

Signed-off-by: Francesco M. Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13 17:40:30 +09:00
Magnus Damm
bfbedf787c sh: early printk port type fix
Add PORT_SCIF to unbreak the early printk code.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-13 15:37:07 +09:00
Yoshihiro Shimoda
51ee3d92bf fix sci type for SH7723
This patch changes sci type of SH7723 from PORT_SCI to PORT_SCIFA.

Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-11-12 12:29:56 +09:00
Paul Mundt
694f94f263 sh: FTRACE renamed to FUNCTION_TRACER.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-31 16:20:36 +09:00
Kuninori Morimoto
47c2968c84 Add support usb setting on sh 7366
This patch add usb setting for sh 7366

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-31 16:03:30 +09:00
Paul Mundt
b4d36a254f sh: Add on-chip RTC support for SH7722.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28 18:40:19 +09:00
Paul Mundt
8a2fd5f3ab sh: Fix FPU tuning on toolchains with mismatched multilib targets.
Presently there is very little standing in the way of using an SH-4
toolchain for building an SH-2 kernel, and vice versa. Binutils itself
has no limitations whatsoever and supports explicit ISA hinting, which
we already use with varying degrees of success today.

This leaves GCC as the odd one out, due to a rather dubious policy
decision by the GCC folks to not include all of the CPU family variants
in the default list of multilib targets in GCC4. Despite best efforts to
the contrary, libgcc itself already contains awareness of the various CPU
types and remains generally usable, allowing it to safely be referenced
even on a mismatched target (and indeed, explicit ISA tuning by binutils
keeps us honest in terms of ensuring that we do not link incompatible
objects in).

In order to support this, a couple of changes had to be made. Firstly,
the introduction of MAYBE_DECLARE_EXPORT(), which provides a __weak
extern reference for libgcc resident routines when finer-grained
-m<cpu-family> based tuning is not supported by the toolchain. This
fixes up the __sdivsi3_i4i and __udivsi3_i4i references when dealing
with SH-2 kernels linked with an SH-4 libgcc. Secondly, in case where we
are unable to find a suitable match for CPU family tuning but still
have a toolchain that defaults to FP instruction generation, a suitable
nofpu target must be selected. This is accomplished by selecting the
first nofpu multilib target supported by the toolchain, which is
also necessary for selecting the proper libgcc to link against.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-28 17:19:35 +09:00
Magnus Damm
0835f127e5 sh: sh7785 pinmux support
This patch implements pinmux tables for the sh7785 processor.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-23 11:59:37 +09:00
Paul Mundt
6f8f6daa6d sh: Kill off unused p1fc divisors from SH7763 clk fwk.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-22 19:38:30 +09:00
Magnus Damm
42eed42bac sh: improve pinmux support for single direction pins
This patch improves the support for gpio pins that are hard wired
to either input or output and lack control register association.
A special force enum id is used to allow use without control
register but still mark the gpio pin as input or output.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-22 18:34:16 +09:00
Magnus Damm
ed0b2ef55a sh: Update gpio_set_value() pin value handling
This patch updates the pinmux code to use the boolean value for
the function gpio_set_value(). Without this patch values other
than 0 and 1 will result in incorrect GPIO settings.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 21:41:23 +09:00
Paul Mundt
2bba37e64a sh: Export cache flush routines needed by sh_eth on SH7619.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 19:45:08 +09:00
Paul Mundt
c9306f0efb sh: Wire up oops reporting in the die notifier chain.
Commit 3f5a54e371 ("ftrace: dump out ftrace
buffers to console on panic") added an ftrace buffer dumper that hooks
in to the die notifier chain and dumps out data in the oops path.

Unfortunately SH supported ftrace but didn't support DIE_OOPS, so add
that in and get it building again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 18:33:36 +09:00
Paul Mundt
7dd0558d70 sh: Hook up PB0->PB7 input-only pins in SH7203 PFC.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 18:09:43 +09:00
Paul Mundt
b56050ae5e sh: arch/sh/kernel/smp.c needs linux/cpu.h for notify_cpu_starting().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 12:51:51 +09:00
Paul Mundt
a51413a65f sh: Fix up the SH7203 build.
The sh7203.h include paths were missed in the previous update, so switch
the include path to cpu/ as with the rest.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-21 12:51:51 +09:00
Linus Torvalds
ed402af3c2 Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (112 commits)
  sh: Move SH-4 CPU headers down one more level.
  sh: Only build in gpio.o when CONFIG_GENERIC_GPIO is selected.
  sh: Migrate common board headers to mach-common/.
  sh: Move the CPU definition headers from asm/ to cpu/.
  serial: sh-sci: Add support SCIF of SH7723
  video: add sh_mobile_lcdc platform flags
  video: remove unused sh_mobile_lcdc platform data
  sh: remove consistent alloc cruft
  sh: add dynamic crash base address support
  sh: reduce Migo-R smc91x overruns
  sh: Fix up some merge damage.
  Fix debugfs_create_file's error checking method for arch/sh/mm/
  Fix debugfs_create_dir's error checking method for arch/sh/kernel/
  sh: ap325rxa: Add support RTC RX-8564LC in AP325RXA board
  sh: Use sh7720 GPIO on magicpanelr2 board
  sh: Add sh7720 pinmux code
  sh: Use sh7203 GPIO on rsk7203 board
  sh: Add sh7203 pinmux code
  sh: Use sh7723 GPIO on AP325RXA board
  sh: Add sh7723 pinmux code
  ...
2008-10-20 09:13:34 -07:00
Vivek Goyal
57cac4d188 kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE
o elfcorehdr_addr is used by not only the code under CONFIG_PROC_VMCORE
  but also by the code which is not inside CONFIG_PROC_VMCORE.  For
  example, is_kdump_kernel() is used by powerpc code to determine if
  kernel is booting after a panic then use previous kernel's TCE table.
  So even if CONFIG_PROC_VMCORE is not set in second kernel, one should be
  able to correctly determine that we are booting after a panic and setup
  calgary iommu accordingly.

o So remove the assumption that elfcorehdr_addr is under
  CONFIG_PROC_VMCORE.

o Move definition of elfcorehdr_addr to arch dependent crash files.
  (Unfortunately crash dump does not have an arch independent file
  otherwise that would have been the best place).

o kexec.c is not the right place as one can Have CRASH_DUMP enabled in
  second kernel without KEXEC being enabled.

o I don't see sh setup code parsing the command line for
  elfcorehdr_addr.  I am wondering how does vmcore interface work on sh.
  Anyway, I am atleast defining elfcoredhr_addr so that compilation is not
  broken on sh.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20 08:52:39 -07:00
Paul Mundt
ebf9c118df sh: Only build in gpio.o when CONFIG_GENERIC_GPIO is selected.
The pinmux management is tied in to this code, while it is presently only
used by platforms that select GENERIC_GPIO. The asm/gpio.h definitions
are not referenced when GENERIC_GPIO is disabled, resulting in a build
failure for all of the platforms that don't select it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 13:04:06 +09:00
Paul Mundt
f727565013 sh: Move the CPU definition headers from asm/ to cpu/.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 12:04:53 +09:00
Magnus Damm
4aeaa22343 sh: add dynamic crash base address support
Add support for dynamic crash kernel base address.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:38:40 +09:00
Paul Mundt
9a19eb2a66 sh: Fix up some merge damage.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 11:37:58 +09:00
Paul Mundt
4cb40f795a Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:

	Documentation/kernel-parameters.txt
	arch/sh/include/asm/elf.h
2008-10-20 11:17:52 +09:00
Paul Mundt
79ed2a9216 Merge branch 'sh/gpiolib' 2008-10-20 10:40:32 +09:00
Zhaolei
9986b311ef Fix debugfs_create_dir's error checking method for arch/sh/kernel/
debugfs_create_dir() returns NULL if an error occurs, returns -ENODEV
when debugfs is not enabled in the kernel.

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2008-10-20 10:40:15 +09:00