linux-toradex.git/arch/sh/kernel/cpu/sh4/probe.c, branch v3.19

sh: delete __cpuinit usage from all sh files

2013-07-14T23:36:53+00:00

The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

Note that some harmless section mismatch warnings may result, since
notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c)
are flagged as __cpuinit  -- so if we remove the __cpuinit from
arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
content into no-ops as early as possible, since that will get rid
of these warnings.  In any case, they are temporary and harmless.

This removes all the arch/sh uses of the __cpuinit macros from
all C files.  Currently sh does not have any __CPUINIT used in
assembly files.

[1] https://lkml.org/lkml/2013/5/20/589

Cc: Paul Mundt 
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Gortmaker

sh: Add initial support for SH7734 CPU subtype

2012-04-17T07:20:23+00:00

This implements initial support for the SH7734.
This adds support SCIF, TMU and RTC.

Signed-off-by: Nobuhiro Iwamatsu 
Signed-off-by: Paul Mundt

sh: sh7372 SH4AL-DSP probe support

2011-01-13T06:20:40+00:00

Add probe support for the sh7372 SH4AL-DSP core.

The most common use case for this is when the system
boots from the ARM core in the sh7372 and uses the
SH core for application offload as a slave CPU.

May also be used to boot the sh7372 from the SH core.

Signed-off-by: Magnus Damm 
Signed-off-by: Paul Mundt

sh: add PVR probing for SH7757 3rd cut

2011-01-11T03:51:10+00:00

Signed-off-by: Yoshihiro Shimoda 
Signed-off-by: Paul Mundt

sh: change PVR of SH7757 for 2nd cut

2010-07-06T08:37:57+00:00

All 1st cut silicon in the wild has been replaced by the 2nd cut, so it's
safe to replace all of the 1st cut references and support.

Signed-off-by: Yoshihiro Shimoda 
Signed-off-by: Paul Mundt

sh: Tidy CPU probing and fixup section annotations.

2010-04-21T03:01:06+00:00

This does a detect_cpu_and_cache_system() -> cpu_probe() rename, tidies
up the unused return value, and stuffs it under __cpuinit in preparation
for CPU hotplug.

Signed-off-by: Paul Mundt

sh: Mass ctrl_in/outX to __raw_read/writeX conversion.

2010-01-26T03:58:40+00:00

The old ctrl in/out routines are non-portable and unsuitable for
cross-platform use. While drivers/sh has already been sanitized, there
is still quite a lot of code that is not. This converts the arch/sh/ bits
over, which permits us to flag the routines as deprecated whilst still
building with -Werror for the architecture code, and to ensure that
future users are not added.

Signed-off-by: Paul Mundt

sh: Handle SH-4 FPU variants with broken CVR values.

2010-01-19T18:38:56+00:00

Usually we can look to the CVR to work out whether we have an FPU or not.
Unfortunately not all parts comply with this, so just set the flag
manually for all SH-4 parts and clear it on the only SH-4 that doesn't
have one (SH4-501).

Signed-off-by: Paul Mundt

sh: Fix up L2 cache comment typo.

2010-01-13T09:37:19+00:00

Valid sizes include 256kB, not 258kB.

Signed-off-by: Paul Mundt

sh: PVR detection for 2nd cut SH7786.

2010-01-13T07:35:58+00:00

The mass produced cuts use an updated PVR value, add them to the list.

Signed-off-by: Matt Fleming 
Signed-off-by: Paul Mundt