Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

q40_irq_handler() must be kept to translate ISA IRQs to the range 1-15.
q40_probe_irq_o{ff,n}() become unused.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Cc: Richard Zidlicky <rz@linux-m68k.org>

Replace the custom irq handler that masks the irq and calls do_IRQ(), and
the unmasking in the individual handlers, by handle_level_irq().
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Cc: Sam Creasey <sammy@sammy.net>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NSam Creasey <sammy@sammy.net>

Replace the custom user vector interrupt handler that calls do_IRQ() and
does an EOI by handle_fasteoi_irq().
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Cc: Peter De Schrijver <p2@debian.org>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Cc: Richard Hirst <rhirst@parisc-linux.org>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Cc: Philip Blundell <philb@gnu.org>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

  - Remove filename in comments,
  - Reorder functions so we no longer need forward declarations.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

This code was obsoleted during the irq restructuring in 2006.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
[v1] Acked-by: Thomas Gleixner <tglx@linutronix.de>

Disabled on all platforms for now
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
[v1] Acked-by: Thomas Gleixner <tglx@linutronix.de>

The m68k core irq code stopped honoring these flags during the irq
restructuring in 2006.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

  - Rename m68k_handle_int() to generic_handle_irq(), and drop the unneeded
    asmlinkage,
  - Rename __m68k_handle_int() to do_IRQ().
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

This is a wrapper around m68k_setup_irq_chip() that discards its dummy
second parameter, to ease the future transition to genirq.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NThomas Gleixner <tglx@linutronix.de>

It has nothing to do with the standard one in <linux/irq.h>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NThomas Gleixner <tglx@linutronix.de>

Make it more similar to the genirq version:
  - Add an irq field
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NThomas Gleixner <tglx@linutronix.de>

Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NThomas Gleixner <tglx@linutronix.de>

Make it more similar to the genirq version:
  - Remove lock (unused as we don't do SMP anyway),
  - Prepend methods with irq_,
  - Make irq_startup() return unsigned int.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NThomas Gleixner <tglx@linutronix.de>

commit 0e152d80 ("m68k: reorganize Kconfig
options to improve mmu/non-mmu selections") accidentally dropped the DIO
bus config option. Re-add it to the "Bus support" section.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

commit 0e152d80 ("m68k: reorganize Kconfig
options to improve mmu/non-mmu selections") accidentally dropped the ARAnyM
config options. Re-add them to the "Platform devices" section.
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Acked-by: NGreg Ungerer <gerg@uclinux.org>

Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com>

Markers have removed already twice:

1: fc537766
2: eb878b3b

But a little bit is still here.
Signed-off-by: NTkhai Kirill <tkhai@yandex.ru>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Add missing return statement. The docs say that the level 4 PSC IRQs
relate to MACE DMA and SCC. Since those drivers don't call
mac_irq_pending() this patch has no affect. But it should be fixed all the
same, since it can be useful for MACE debugging.
Signed-off-by: NFinn Thain <fthain@telegraphics.com.au>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

The algorithm described in the comment compares two reads from the RTC but
the code actually reads once and compares the result to an uninitialized
value. This causes the compiler to warn, "last_result maybe used
uninitialized". Make the code match the comment, fix the warning and
perhaps improve reliability. Tested on a Quadra 700.
Signed-off-by: NFinn Thain <fthain@telegraphics.com.au>
Signed-off-by: NGeert Uytterhoeven <geert@linux-m68k.org>

Reported-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

Signed-off-by: NPaul Bolle <pebolle@tiscali.nl>
Acked-by: NGeert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

Create common extern definitions of _rambase, _ramstart and _ramend
instead of them being externed when used in code.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

We do not need to have local extern declarations of memory_start and
memory_end in mm/init_no.c. There are declarations already in asm/page_no.h.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

We should be including and using sections.h to get at the extern
definitions of the linker sections in the m68knommu mm init code.
Not defining them locally.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

We should be including and using sections.h to get at the extern
definitions of the linker sections in the m68knommu startup code.
Not defining them locally.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

The code for handling traps in the non-mmu case is a subset of the mmu
enabled case. Merge the non-mmu traps_no.c code back to a single traps.c.
There is actually no code mmu specific here at all, and the processor
specific code (for the more complex 68020/68030/68040/68060) is already
proplerly conditionaly used.

The format of console exception dump is a little different, but I don't
think will cause any one problems, it is purely for debug purposes.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

Most of the trap.c code is general to all m68k arch members. But the code
it currently contains to set the hardware vector table is quite specific to
the 680x0 family. They can have the vector table at any address unlike
other family members (which either support only a single fixed address,
or a limited range of addresses). So lets move that code out to a new file,
vectors.c. This will make sharing the rest of the trap.c code easier and
cleaner.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

The changes in the mmu version of entry.h (entry_mm.h) and the non-mmu
version (entry_no.h) are not about the presence or use of an MMU at all.
The main changes are to support the ColdFire processors. The code for
trap entry and exit for all types of 68k processor outside coldfire is
the same.

So merge the files back to a single entry.h and share the common 68k
entry/exit code. Some changes are required for the non-mmu entry
handlers to adopt the differing macros for system call and interrupt
entry, but this is quite strait forward. The changes for the ColdFire
remove a couple of instructions for the separate a7 register case, and
are no worse for the older single a7 register case.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>

The few differences between the mmu and non-mmu kernel/Makefiles can
easily be handled inside of a single Makefile. Merge the 2 back into
a single Makefile.
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Acked-by: NSam Ravnborg <sam@ravnborg.org>