Commit Graph

2329 Commits

Author SHA1 Message Date
David Daney
c6cb4df96f MIPS: Return ENOSYS from sys32_syscall on 64bit kernels like elsewhere.
When the o32 errno was changed to ENOSYS, we forgot to update the code
for 64bit kernels.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:28 +00:00
Ralf Baechle
8d13cb26cd MIPS: 64-bit: vmsplice needs to use the compat wrapper for o32 and N32.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:28 +00:00
Ralf Baechle
08d30879a6 MIPS: o32: Fix number of arguments to splice(2).
The syscall code was assuming splice only takes 4 arguments so no stack
arguments were being copied from the userspace stack to the kernel stack.
As the result splice was likely to fail with EINVAL.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:28 +00:00
Ralf Baechle
566a3b9557 MIPS: Malta: Consolidate platform device code.
After adding the RTC platform device to malta-platform.c malta-mtd.c should
get unified with the rest of the platform device code.
2008-12-04 17:47:28 +00:00
Ralf Baechle
3e27cce60e MIPS: IP22, Fulong, Malta: Update defconfigs.
These haven't seen much attention for too long but particularly important
enable RTC_CLASS and CONFIG_RTC_HCTOSYS so the wall clock time is set on
kernel startup.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:28 +00:00
Tiejun Chen
192cc7f090 MIPS: Malta: Add back RTC support
With the conversion of MIPS to RTC_LIB the old RTC driver CONFIG_RTC became
unselectable.  Fix by setting up a platform device.  Also enable
RTC_CLASS so system time gets set from RTC on kernel initialization.

[Ralf: Original patch by Tiejun; polished nice and shiny by me]

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:27 +00:00
Vlad Malov
e807f9574e MIPS: Fix potential DOS by untrusted user app.
On a 64 bit kernel if an o32 syscall was made with a syscall number less
than 4000, we would read the function from outside of the bounds of the
syscall table.  This led to non-deterministic behavior including system
crashes.

While we were at it we reworked the 32 bit version as well to use fewer
instructions.  Both 32 and 64 bit versions are use the same code now.

Signed-off-by: Vlad Malov <Vlad.Malov@caviumnetworks.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-12-04 17:47:26 +00:00
Christoph Hellwig
96b8936a9e remove __ARCH_WANT_COMPAT_SYS_PTRACE
All architectures now use the generic compat_sys_ptrace, as should every
new architecture that needs 32bit compat (if we'll ever get another).

Remove the now superflous __ARCH_WANT_COMPAT_SYS_PTRACE define, and also
kill a comment about __ARCH_SYS_PTRACE that was added after
__ARCH_SYS_PTRACE was already gone.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-30 11:00:15 -08:00
David Daney
8ec2e24356 MIPS: Make BUG() __noreturn.
Often we do things like put BUG() in the default clause of a case
statement.  Since it was not declared __noreturn, this could sometimes
lead to bogus compiler warnings that variables were used
uninitialized.

There is a small problem in that we have to put a magic while(1); loop to
fool GCC into really thinking it is noreturn.  This makes the new
BUG() function 3 instructions long instead of just 1, but I think it
is worth it as it is now unnecessary to do extra work to silence the
'used uninitialized' warnings.

I also re-wrote BUG_ON so that if it is given a constant condition, it
just does BUG() instead of loading a constant value in to a register
and testing it.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-11-24 16:35:07 +00:00
Ralf Baechle
a24e849c01 MIPS: csrc-r4k: Fix declaration depending on the wrong CONFIG_ symbol.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-11-20 19:42:33 +00:00
Ralf Baechle
664c4bbb73 MIPS: csrc-r4k: Fix spelling mistake.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-11-20 19:42:33 +00:00
Phil Sutter
2e373952cc MIPS: RB532: Provide functions for gpio configuration
As gpiolib doesn't support pin multiplexing, it provides no way to
access the GPIOFUNC register. Also there is no support for setting
interrupt status and level. These functions provide access to them and
are needed by the CompactFlash driver.

Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-11-20 19:42:33 +00:00
Dmitri Vorobiev
f43909dfb3 MIPS: IP22: Make indy_sc_ops variable static
The indy_sc_ops variable in arch/mips/mm/sc-ip22.c is needlessly defined
global, and this patch makes it static.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
2008-11-20 19:42:33 +00:00
Florian Fainelli
1b432840d0 MIPS: RB532: GPIO register offsets are relative to GPIOBASE
This patch fixes the wrong use of GPIO register offsets
in devices.c. To avoid further problems, use gpio_get_value
to return the NAND status instead of our own expanded code.

Also define the zero offset of the alternate function register to allow
consistent access.

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Phil Sutter <n0-1@freewrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-11-20 19:42:32 +00:00
David Daney
9e86786a4b MIPS: Malta: Fix include paths in malta-amon.c
On linux-queue, malta doesn't build after the include file relocation.
This should fix it.

There some occurrences of 'asm-mips' in the comments of quite a few
files, but this is the only place I found it in any code.

Signed-off-by: David Daney <ddaney@avtrex.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-11-20 19:42:32 +00:00
Ralf Baechle
09d9327b34 CHAR: Delete old and now unused M48T35 RTC driver for SGI IP27.
It was only used by this one SGI platform which recently was converted to
RTC_LIB and with RTC_LIB enabled the legacy drivers are no more selectable.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-30 14:44:35 +00:00
Ralf Baechle
4bdebe5b4a CHAR: Delete old and now unused DS1286 driver.
It was only used by two SGI platforms which recently were converted to
RTC_LIB and with RTC_LIB enabled the legacy drivers are no more selectable.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
2008-10-30 14:44:35 +00:00
Ralf Baechle
cea7e2dfde MIPS: Sort out CPU type to name translation.
As noticed by David Daney <ddaney@caviumnetworks.com>, the old long switch
statement did not comply with the Linux C coding style.  It was also yet
another place of code to be changed when adding a new processor type
leading to annoying bugs for example in /proc/cpuinfo.

Fixed by moving the setting of the CPU type string into the core of the
probing code and a few BUG_ON() test to ensure the CPU probing code indeed
did its job and removing multiple now redundant tests.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-30 14:44:34 +00:00
Harvey Harrison
255a12fbf9 MIPS: Use the new byteorder headers
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-30 14:44:34 +00:00
Ralf Baechle
558ce12494 MIPS: Probe for watch registers on cores of all vendors, not just MTI.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: David Daney <ddaney@caviumnetworks.com>
2008-10-30 14:44:34 +00:00
Ralf Baechle
ba3049ed40 MIPS: Switch FPU emulator trap to BREAK instruction.
Arguably using the address error handler has always been ugly.  But with
processors that handle unaligned loads and stores in hardware the
current mechanism ceases to work so switch it to a BREAK instruction and
allocate break code 514 to the FPU emulator.

Yoichi Yuasa provided a build fix for CONFIG_BUG=n.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
2008-10-30 14:44:34 +00:00
Ralf Baechle
076c6e4f4d MIPS: SMP: Do not initialize __cpu_number_map/__cpu_logical_map for CPU 0.
A system isn't necessarily booted on physical processor 0 as this code
assumes.  Also the array happens to be allocated in .bss so it's zero
initialized anyway.  Systems which need to override this can do so in
their mp_ops->smp_setup() method.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-30 14:44:33 +00:00
David Daney
566f74f6b2 MIPS: Consider value of c0_ebase when computing value of exception base.
It just so happens to be zero on all currently supported systems so this
hasn't bitten yet ...

[Ralf: Original patch from Cavium; handling of set_uncached_handler() and
de-ifdef'ed trap_init() implementation by me.]

Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com>
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-30 14:44:33 +00:00
Ralf Baechle
4816227b54 MIPS: Clean up MIPSxx-optimized bitop functions
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-30 14:44:33 +00:00
Ralf Baechle
c46b302b94 MIPS: New feature test macro cpu_has_mips_r
cpu_has_mips_r is true if a processor is MIPS32 or MIPS64, any architecture
revision.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-30 14:44:33 +00:00
Atsushi Nemoto
864cbf804d MIPS: RBTX4927: Add GPIO-LED support
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-30 14:44:33 +00:00
Atsushi Nemoto
9cc4581528 MIPS: TXx9: Fix RBTX4939 ethernet address initialization
Fix location of ethernet adddress when booted from external ROM.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-30 14:44:33 +00:00
Zhang Le
3a63913f60 MIPS: lemote/lm2e: Added io_map_base to pci controller
Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:31 +00:00
Geert Uytterhoeven
97b0511ce1 MIPS: TXx9: Make firmware parameter passing more robust
When booting Linux on a txx9 board with VxWorks boot loader, it crashes in
prom_getenv(), as VxWorks doesn't pass firmware parameters in a0-a3 (in my
case, the actual leftover values in these registers were 0x80002000,
0x80001fe0, 0x2000, and 0x20).

Make the parsing of argc, argv, and envp a bit more robust by checking if
argc is a number below CKSEG0, and argv/envp point to CKSEG0.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:31 +00:00
Shinya Kuribayashi
d1a8e2a6da MIPS: Markeins: Remove unnecessary define and cleanup comments, etc.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:31 +00:00
Shinya Kuribayashi
49618d652b MIPS: Markeins: Extract ll_emma2rh_* functions
These functions are completely ineffective.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:31 +00:00
Shinya Kuribayashi
a9c2aa17a8 MIPS: Markeins: Remove runtime debug prints
Remove runtime db_* macros as we don't need them any more.  In general,
such helpers are useful for initial porting, but once approved, they are
not indispensable.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:30 +00:00
Shinya Kuribayashi
9ae9fd79af MIPS: EMMA: Fold arch/mips/emma/{common,markeins}/irq*.c into markeins/irq.c
Current EMMA2RH irq code is mess.  Before cleaning it up, gather them
in one place as a first step.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:30 +00:00
Shinya Kuribayashi
fcb3cfe7f0 MIPS: EMMA2RH: Remove emma2rh_gpio_irq_base
Let's use immediate value, instead.  This also saves memory footprint,
and probably a little bit faster.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:30 +00:00
Shinya Kuribayashi
68ed1ca912 MIPS: EMMA2RH: Remove emma2rh_sw_irq_base
Let's use immediate value, instead.  This also saves memory footprint,
and probably a little bit faster.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:30 +00:00
Shinya Kuribayashi
9b6c04bc97 MIPS: EMMA2RH: Remove emma2rh_irq_base global variable
Let's use immediate value, instead.  This also saves memory footprint,
and probably a little bit faster.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:30 +00:00
Shinya Kuribayashi
27bd804582 MIPS: EMMA2RH: Remove emma2rh_sync on read operation
It's totally a waste of CPU cycles.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:30 +00:00
Shinya Kuribayashi
d91f2cbe69 MIPS: EMMA: Move <asm/emma2rh> to <asm/emma> dir
We'll put all EMMA related headers there in the future.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:29 +00:00
Shinya Kuribayashi
f27655e341 MIPS: EMMA: Move arch/mips/emma2rh/ into arch/mips/emma/
git mv arch/mips/{emma2rh,emma} and fixups Makefiles.  We'll put all NEC
EMMA series based machines there in the future.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:29 +00:00
Shinya Kuribayashi
cd741b604b MIPS: EMMA: Kconfig reorganization
- Move EMMA related stuff into arch/mips/emma/Kconfig
- Create CONFIG_SOC_EMMA* to handle more EMMA SoCs effectively
- Rename CONFIG_MARKEINS into CONFIG_NEC_MARKEINS

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:29 +00:00
Shinya Kuribayashi
542c1020ac MIPS: Add CONFIG_CPU_R5500 for NEC VR5500 series processors
We already have sufficient infrastructure to support VR5500 and VR5500A
series processors.  Here's a Makefile support to make it selectable by
ports, and enable it for NEC EMMA2RH Markeins board.

This patch also fixes a confused target help, and adds 1Gb PageMask bits
supported by VR5500 and its variants.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:29 +00:00
Phil Sutter
bc4c4e832a MIPS: RB532: Disable the right device
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:29 +00:00
Daniel Laird
edb6310aaa MIPS: Add support for NXP PNX833x (STB222/5) into linux kernel
The following patch add support for the NXP PNX833x SOC.  More
specifically it adds support for the STB222/5 variant. It fixes
the vectored interrupt issue.

Signed-off-by: daniel.j.laird <daniel.j.laird@nxp.com>
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:29 +00:00
Geert Uytterhoeven
537fa37c86 MIPS: TXx9: CONFIG_TOSHIBA_RBTX4939 spelling
Fix a typo in the comment for the TOSHIBA_RBTX4939 config option

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Acked-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:28 +00:00
Yoichi Yuasa
f6a3176a18 MIPS: Fix KGDB build error
In file included from include/linux/ptrace.h:49,
                 from arch/mips/kernel/kgdb.c:25:
/home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:123: error: expected declaration specifiers or '...' before '__s64'
/home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:124: error: expected declaration specifiers or '...' before '__s64'
/home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:126: error: expected declaration specifiers or '...' before '__u32'
/home/yuasa/src/linux/test/mips/linux/arch/mips/include/asm/ptrace.h:127: error: expected declaration specifiers or '...' before '__u32'
make[1]: *** [arch/mips/kernel/kgdb.o] Error 1

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:28 +00:00
Ralf Baechle
2f123e503d MIPS: IP22: ip22-int.c header file weeding.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:28 +00:00
Dmitri Vorobiev
14823ccbf8 MIPS: IP22: Small cleanups
The following functions

disable_local1_irq()
disable_local2_irq()
disable_local3_irq()

are needlessly defined global, so make them static. While at it, fix a
whitespace error in the same file.

Signed-off-by: Dmitri Vorobiev <dmitri.vorobiev@movial.fi>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:28 +00:00
Atsushi Nemoto
1ba5a17674 MIPS: RBTX4939: Add smc91x support
Add smc91x platform device to RBTX4939 board and some hacks for big endian.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:27 +00:00
Atsushi Nemoto
bc89b2bdef MIPS: TXx9: 7 segment LED support
Add sysfs interface for 7 segment LED and implement access routine for
RBTX4939.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:27 +00:00
Manuel Lauss
f591eb1e68 MIPS: Alchemy: Wire up SD controller on DB/PB1200 boards.
Add au1xmmc platform data for PB1200/DB1200 boards and wire up the 2 SD
controllers for them.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2008-10-27 16:18:27 +00:00