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2010-08-04Merge branch 'devel-map-io' into omap-for-linusTony Lindgren
2010-08-04omap3: introduce omap3_map_ioMike Rapoport
Most OMAP3-based boards use exactly the same code for .map_io method in the machine_desc structure. This patch introduces omap3_map_io and updates board-* files to use it as .map_io method. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04omap3: Unify omap2_set_globals_3[43,6x]x functionsSergio Aguirre
The only difference between them is the physical address of the uart4 port, which is only present in 36xx chips. We don't really need to care about keeping these 2 functions, since the decision to use uart4 is more cleanly done later when we do have access to omap_revision variable. Signed-off-by: Sergio Aguirre <saaguirre@ti.com> Acked-by: Kevin Hilman <khilman@deeprootsystems.com> [tony@atomide.com: added comment for the uart4_phys] Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04CRIS: Return something from profile writeJesper Nilsson
Even if it doesn't matter, we should return something. Also, clean up some formatting. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add ARTPEC-3 and timestamps for sync-serialJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Better ARTPEC-3 support for gpioJesper Nilsson
Add PWM support, correct comment for ARTPEC-3. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add include guardJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Better handling of pinmux settingsJesper Nilsson
Depending on eth, eth_mido and geth fields in wr_hwprot, don't set corresponding pins on gpio port b to gpio mode. This avoids re-resetting the ethernet PHY should this already have been done. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: New DMA defines for ARTPEC-3Jesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: __do_strncpy_from_user: Don't read the byte beyond the nilJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Pagetable for ARTPEC-3Jesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Machine dependent memmap.hJesper Nilsson
Move the old one to mach-fs and replace with a new one that only include the correct one for the machine architecture. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Check if pointer is set before using itJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Machine dependent dma.hJesper Nilsson
Move the old one to mach-fs and replace with a new one that only include the correct one for the machine architecture. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Define __read_mostly for CRISv32Jesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Discard .note.gnu.build-id sectionJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Avoid compilation warning for putsJesper Nilsson
Rename to aputs. Also, simplify code by moving some common code out to macros. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add debug for assembler macrosJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Update for ARTPEC-3Jesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add more delays in DDR setupJesper Nilsson
Also, make DDR latency configurable. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add debug info for assembler codeJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add debug info for assembler codeJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add debug symbols for assembler codeJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Minor formatting fix in traps.cJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: v32: Correct auto-restart of syscallsJesper Nilsson
Register number was incorrect in syscalls that go via the restartblock (e.g, poll). Signed-off-by: Edgar Iglesias <Edgar.Iglesias@axis.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: More ARTPEC-3 support and i2c-boardinfo.Jesper Nilsson
Add standard i2d-devices. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Remove obsolete pinmux.c, now machine dependent.Jesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: kgdb: Fix compilation errorsJesper Nilsson
Paths were not correct and pack_hex_byte() takes two arguments. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: v32: Correct path for intr_vect.hJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: v32: Better irq mapping codeJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: v32: Correct address for romfs in the imageJesper Nilsson
Is after __bss_start, not __vmlinux_end Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Additional mmu settings for ARTPEC-3Jesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Faster syscall entry for CRISv32.Jesper Nilsson
Signed-off-by: Edgar Iglesias <Edgar.Iglesias@axis.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Simple insn reschedule to avoid interlocks.Jesper Nilsson
Brings down the CPI from ~1.5 to ~1.1. Signed-off-by: Edgar Iglesias <Edgar.Iglesias@axis.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Add debug for assembler functionsJesper Nilsson
Signed-off-by: Edgar Iglesias <Edgar.Iglesias@axis.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Correct address of the romfs in boot imageJesper Nilsson
The romfs should land after __init_end Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Fasttimer: Remove obsolete ifdefJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Better link to rs485 in helpJesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: Remove CVS tag.Jesper Nilsson
Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: v10: remove all BKL usageJesper Nilsson
We don't need to take the BKL here. Also fixes compile error after last commit (smp_lock.h was not included) Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04CRIS: gpio: don't call copy_to_user()/copy_from_user() while holding spinlocksJesper Nilsson
copy_to_user()/copy_from_user() must not be used with spinlocks held. Move locks inside each case so we have better control of when the locks are held. Also, since we use spinlocks, we don't need to hold the BKL, so remove it. Reported-by: Kulikov Vasiliy <segooon@gmail.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04arch/cris: Remove unnecessary casts of private_dataJoe Perches
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04cris: autoconvert trivial BKL users to private mutexJesper Nilsson
All these files use the big kernel lock in a trivial way to serialize their private file operations, typically resulting from an earlier semi-automatic pushdown from VFS. None of these drivers appears to want to lock against other code, and they all use the BKL as the top-level lock in their file operations, meaning that there is no lock-order inversion problem. Consequently, we can remove the BKL completely, replacing it with a per-file mutex in every case. Using a scripted approach means we can avoid typos. file=$1 name=$2 if grep -q lock_kernel ${file} ; then if grep -q 'include.*linux.mutex.h' ${file} ; then sed -i '/include.*<linux\/smp_lock.h>/d' ${file} else sed -i 's/include.*<linux\/smp_lock.h>.*$/include <linux\/mutex.h>/g' ${file} fi sed -i ${file} \ -e "/^#include.*linux.mutex.h/,$ { 1,/^\(static\|int\|long\)/ { /^\(static\|int\|long\)/istatic DEFINE_MUTEX(${name}_mutex); } }" \ -e "s/\(un\)*lock_kernel\>[ ]*()/mutex_\1lock(\&${name}_mutex)/g" \ -e '/[ ]*cycle_kernel_lock();/d' else sed -i -e '/include.*\<smp_lock.h\>/d' ${file} \ -e '/cycle_kernel_lock()/d' fi Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04cris: Pushdown the bkl from ioctlJesper Nilsson
From: Frederic Weisbecker <fweisbec@gmail.com> Pushdown the bkl to the remaining drivers using the deprecated .ioctl. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: John Kacur <jkacur@redhat.com>
2010-08-04CRIS: invoke oom-killer from page faultJesper Nilsson
As explained in commit 1c0fe6e3bd, we want to call the architecture independent oom killer when getting an unexplained OOM from handle_mm_fault, rather than simply killing current. Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com> Signed-off-by: Mikael Starvik <starvik@axis.com>
2010-08-04CRIS: GENERIC_TIME fixesJesper Nilsson
GENERIC_TIME was not functional for CRIS, giving random backward time jumps. For CRISv32 implement a new clocksource using the free running counter and ditch the arch_gettimeoffset. The random time jumps still existed, but turned out to be the write_seqlock which was missing around our do_timer() call. So switch over to GENERIC_TIME using the clocksource for CRISv32. CRISv10 doesn't have the free running counter needed for the clocksource trick, but we can still use GENERIC_TIME with arch_gettimeoffset. Unfortunately, there were problems in using the prescaler register to timer0 for the gettimeoffset calculation, so it is now ignored, making our resolution worse by the tune of 40usec (0.4%) worst case. At the same time, clean up some formatting and use NSEC_PER_SEC instead of 1000000000. Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
2010-08-04omap: Fix DEBUG_LL uart to access phys addr when MMU isn't enableJason Wang
Now we use a memory address to store the debug port info, So we need to read/write this address when we choose DEBUG_LL. When MMU isn't enable(I.E. the begining part of init stage of the linux kernel boot), we need to access physical address instead of virtual address, otherwise the kernel will crash. Signed-off-by: Jason Wang <jason77.wang@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
2010-08-04microblaze: Add KGDB supportMichal Simek
Kgdb uses brki r16, 0x18 instruction to call low level _debug_exception function which save current state to pt_regs and call microblaze_kgdb_break function. _debug_exception should be called only from the kernel space. User space calling is not supported because user application debugging uses different handling. pt_regs_to_gdb_regs loads additional special registers which can't be changed * Enable KGDB in Kconfig * Remove ancient not-tested KGDB support * Remove ancient _debug_exception code from entry.S Only MMU KGDB support is supported. Signed-off-by: Michal Simek <monstr@monstr.eu> CC: Jason Wessel <jason.wessel@windriver.com> CC: John Williams <john.williams@petalogix.com> CC: Edgar E. Iglesias <edgar.iglesias@petalogix.com> CC: linux-kernel@vger.kernel.org Acked-by: Jason Wessel <jason.wessel@windriver.com>
2010-08-04microblaze: Support brki rX, 0x18 for user application debuggingMichal Simek
This is the first patch which add support for user application debugging through brki rX, 0x18 vector. This patch has side effect which also remove security issue to use brki rX, 0x18 to freeze kernel. Support for old gdb support via priviledged exception (brk r0, r0) is still there. It will be remove in future. Signed-off-by: Michal Simek <monstr@monstr.eu>
2010-08-04microblaze: Remove nop after MSRCLR/SET, MTS, MFS instructionsMichal Simek
We need to save instruction and the latest Microblaze shouldn't have any problem with it. Signed-off-by: Michal Simek <monstr@monstr.eu>
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