linux-toradex.git/arch/sparc/kernel/head_32.S, branch v3.0.65

sparc32,leon: operate on boot-cpu IRQ controller registers

2011-04-21T23:44:45+00:00

* proper initialization of boot_cpu_id (no hardcoding to 0)
 * use boot_cpu_id index to address into the IRQ controller where
   appropriate

Each CPU has a separate set of IRQ controller registers, this
patch makes sure that the boot-cpu registers are used instead
of CPU0's.

Signed-off-by: Daniel Hellstrom 
Signed-off-by: David S. Miller

sparc32: always define boot_cpu_id

2011-04-21T23:44:44+00:00

Define boot_cpu_id in single-processor kernels as well. This is
to support architectures which can boot on other than CPU0.

Sam Ravnborg has written the cleanup parts by extracting
boot_cpu_id from smp_32.c into setup_32.c and cleaned up
sun4d_irq.c.

boot_cpu_id was initialized before BSS was cleared in
sun4c_continue_boot, instead boot_cpu_id is set to 0xff to
avoid BSS. If boot_cpu_id is untouched (0xff) by bootup code
it will be overwritten to 0. boot_cpu_id4 is automatically
calculated in common code.

Signed-off-by: Daniel Hellstrom 
Signed-off-by: David S. Miller

sparc: use _start for the start entry (like 64 bit does)

2011-01-05T03:25:04+00:00

We use "_start" in 64 bit - do the same in 32 bit.
It is always good to be consistent.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc,leon: Sparc-Leon SMP support

2009-11-02T12:19:42+00:00

Support SMP for a Sparc-Leon multiprocessor system.
Add Leon specific SMP code to arch/sparc/kernel/leon_smp.c.

Signed-off-by: Konrad Eisele 
Signed-off-by: David S. Miller

sparc,leon: Introduce the sparc-leon CPU type.

2009-08-18T01:32:10+00:00

Add sparc_leon enum, M_LEON|M_LEON3_SOC machine. Add compilation of
leon.c in mm and kernel
if CONFIG_SPARC_LEON is defined. Add sparc_leon dependent
initialization to switch statements + head.S.

Signed-off-by: Konrad Eisele 
Reviewed-by:   Sam Ravnborg 
Signed-off-by: David S. Miller

sparc: cleanup references to deprecated .text.init* sections.

2009-04-28T02:51:58+00:00

The section .text.init.refok is deprecated and __REF (.ref.text)
should be used in assembly files instead.  This patch cleans up a few
uses of .text.init.refok in the sparc architecture.

Also fix a reference to .text.init in a comment that wasn't updated to
.init.text.

Signed-off-by: Tim Abbott 
Cc: David S. Miller 
Acked-by: Sam Ravnborg 
Signed-off-by: Linus Torvalds

sparc: convert to use __HEAD and HEAD_TEXT macros.

2009-04-26T16:20:39+00:00

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.

Signed-off-by: Tim Abbott 
Cc: David S. Miller 
Acked-by: Sam Ravnborg 
Signed-off-by: Linus Torvalds

sparc: unify sections.h

2008-12-27T08:35:12+00:00

While doing this use standard names for start/end
so we could use definitions straight from asm-generic
for all the typical symbols.

This also allowed us to drop the use of PROVIDE in the linker
script so sprc is less non-standard on this area.

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller

sparc: prepare kernel/ for unification

2008-12-04T17:17:20+00:00

o sparc32 files with identical names to sparc64 renamed to _32.S
o introduced a few Kconfig helpers to simplify Makefile logic
o refactored Makefile to prepare for unification
  - use obj-$(CONFIG_SPARC32) for sparc32 specific files
  - use _$(BITS) for files where sparc64 has a _64 variant
  - sparc64 directly include a few files where sparc32 builds them,
    refer to these files directly (no BITS)
  - sneaked in -Werror as used by sparc64
o modified sparc/Makefile to use the new names for head/init_task

Signed-off-by: Sam Ravnborg 
Signed-off-by: David S. Miller