1. 18 Jun, 2008 1 commit
  2. 06 May, 2008 1 commit
    • Stefan Roese's avatar
      [POWERPC] 4xx: Fix problem with new TLB storage attibute fields on 440x6 core · a96df496
      Stefan Roese authored
      
      
      The new 440x6 core used on AMCC 460EX/GT introduces new storage attibure
      fields to the TLB2 word. Those are:
      
      Bit  11   12   13   14   15
           WL1  IL1I IL1D IL2I IL2D
      
      With these bits the cache (L1 and L2) can be configured in a more flexible
      way, instruction- and data-cache independently now. The "old" I and W bits
      are still available and setting these old bits will automically set these
      new bits too (for backward compatibilty).
      
      The current code does not clear these fields resulting in disabling the cache
      by chance. This patch now makes sure that these new bits are cleared when
      the TLB2 word is written.
      
      Signed-off-by: default avatarStefan Roese <sr@denx.de>
      Signed-off-by: default avatarJosh Boyer <jwboyer@linux.vnet.ibm.com>
      a96df496
  3. 17 Apr, 2008 1 commit
    • Kumar Gala's avatar
      [POWERPC] Rework Book-E debug exception handling · eb0cd5fd
      Kumar Gala authored
      
      
      The architecture allows for "Book-E" style debug interrupts to either go
      to critial interrupts of their own debug interrupt level.  To allow for
      a dynamic kernel to support machines of either type we want to be able to
      compile in the interrupt handling code for both exception levels.
      
      Towards this goal we renamed the debug handling macros to specify the
      interrupt level in their name (DEBUG_CRIT_EXCEPTION/DebugCrit and
      DEBUG_DEBUG_EXCEPTION/DebugDebug).
      
      Additionally, on the Freescale Book-e parts we expanded the exception
      stacks to cover the maximum case of needing three exception stacks (normal,
      machine check and debug).
      
      There is some kernel text space optimization to be gained if a kernel is
      configured for a specific Freescale implementation but we aren't handling
      that now to allow for the single kernel image support.
      
      Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
      eb0cd5fd
  4. 23 Dec, 2007 1 commit
  5. 06 Dec, 2007 1 commit
  6. 11 Oct, 2007 1 commit
  7. 03 Oct, 2007 1 commit
  8. 18 Sep, 2007 1 commit
  9. 14 Sep, 2007 1 commit
    • Kumar Gala's avatar
      [POWERPC] Fix modpost warnings from head*.S on ppc32 · 748a7683
      Kumar Gala authored
      
      
      We get warnings like the following from the various ppc32 head*.S files:
      
      WARNING: vmlinux.o(.text+0x358): Section mismatch: reference to .init.text:early_init (between 'skpinv' and 'interrupt_base')
      WARNING: vmlinux.o(.text+0x380): Section mismatch: reference to .init.text:machine_init (between 'skpinv' and 'interrupt_base')
      WARNING: vmlinux.o(.text+0x384): Section mismatch: reference to .init.text:MMU_init (between 'skpinv' and 'interrupt_base')
      WARNING: vmlinux.o(.text+0x3aa): Section mismatch: reference to .init.text:start_kernel (between 'skpinv' and 'interrupt_base')
      WARNING: vmlinux.o(.text+0x3ae): Section mismatch: reference to .init.text:start_kernel (between 'skpinv' and 'interrupt_base')
      
      Added a .text.head section simliar to what other architectures do since
      modpost already excludes this from its warnings.
      
      Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
      748a7683
  10. 07 Sep, 2007 1 commit
  11. 07 May, 2007 2 commits
    • David Gibson's avatar
      [POWERPC] Early serial debug support for PPC44x · d9b55a03
      David Gibson authored
      
      
      This adds support for early serial debugging via the built in
      port on IBM/AMCC PowerPC 44x CPUs.  It uses a bolted TLB entry in
      address space 1 for the UART's mapping, allowing robust debugging both
      before and after the initialization of the MMU.
      
      Signed-off-by: default avatarDavid Gibson <dwg@au1.ibm.com>
      Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      d9b55a03
    • David Gibson's avatar
      [POWERPC] Add powerpc/platforms/44x, disable platforms/4xx for now · 2cd97647
      David Gibson authored
      
      
      This prepares for Ebony/440 support by creating an
      arch/powerpc/platforms/44x directory.  It is populated with a single
      misc_44x.S file, into which is moved the 44x specific reset code from
      head_44x.S (on the grounds that we should really stop clogging up the
      head_* files with random asm helper routines).
      
      At the same time, we disable the (empty save Kconfig and Makefile)
      arch/powerpc/platforms/4xx directory from the arch/powerpc/platforms
      Makefile.  Contrary to the comment in
      arch/powerpc/platforms/4xx/Makefile, attempting to build such an empty
      Makefile will fail, thus breaking compile for the 44x platforms we're
      about to add.  It can go back in once we start porting some of the 40x
      platforms (and thus it becomes non-empty).
      
      Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
      Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      2cd97647
  12. 02 May, 2007 1 commit
  13. 12 Feb, 2007 1 commit
  14. 30 Jun, 2006 1 commit
  15. 09 Feb, 2006 1 commit
  16. 17 Oct, 2005 1 commit
  17. 01 Oct, 2005 1 commit
  18. 26 Sep, 2005 1 commit
    • Paul Mackerras's avatar
      powerpc: Merge enough to start building in arch/powerpc. · 14cf11af
      Paul Mackerras authored
      
      
      This creates the directory structure under arch/powerpc and a bunch
      of Kconfig files.  It does a first-cut merge of arch/powerpc/mm,
      arch/powerpc/lib and arch/powerpc/platforms/powermac.  This is enough
      to build a 32-bit powermac kernel with ARCH=powerpc.
      
      For now we are getting some unmerged files from arch/ppc/kernel and
      arch/ppc/syslib, or arch/ppc64/kernel.  This makes some minor changes
      to files in those directories and files outside arch/powerpc.
      
      The boot directory is still not merged.  That's going to be interesting.
      
      Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      14cf11af
  19. 09 Sep, 2005 1 commit
  20. 05 Sep, 2005 1 commit
    • Kumar Gala's avatar
      [PATCH] ppc32: Added support for the Book-E style Watchdog Timer · a2f40ccd
      Kumar Gala authored
      
      
      PowerPC 40x and Book-E processors support a watchdog timer at the processor
      core level.  The timer has implementation dependent timeout frequencies
      that can be configured by software.
      
      One the first Watchdog timeout we get a critical exception.  It is left to
      board specific code to determine what should happen at this point.  If
      nothing is done and another timeout period expires the processor may
      attempt to reset the machine.
      
      Command line parameters:
        wdt=0 : disable watchdog (default)
        wdt=1 : enable watchdog
      
        wdt_period=N : N sets the value of the Watchdog Timer Period.
      
        The Watchdog Timer Period meaning is implementation specific. Check
        User Manual for the processor for more details.
      
      This patch is based off of work done by Takeharu Kato.
      
      Signed-off-by: default avatarMatt McClintock <msm@freescale.com>
      Signed-off-by: default avatarKumar Gala <kumar.gala@freescale.com>
      Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      a2f40ccd
  21. 01 Aug, 2005 1 commit
  22. 30 Jul, 2005 1 commit
  23. 20 May, 2005 1 commit
  24. 01 May, 2005 1 commit
  25. 16 Apr, 2005 1 commit
    • Linus Torvalds's avatar
      Linux-2.6.12-rc2 · 1da177e4
      Linus Torvalds authored
      Initial git repository build. I'm not bothering with the full history,
      even though we have it. We can create a separate "historical" git
      archive of that later if we want to, and in the meantime it's about
      3.2GB when imported into git - space that would just make the early
      git days unnecessarily complicated, when we don't have a lot of good
      infrastructure for it.
      
      Let it rip!
      1da177e4