linux-toradex.git/arch/microblaze/kernel/setup.c, branch v3.0.16

microblaze: Do not copy reset vectors/manual reset vector setup

2011-03-15T09:59:00+00:00

Reset vector can be setup by bootloader and kernel doens't need
to touch it. If you require to setup reset vector, please use
CONFIG_MANUAL_RESET_VECTOR throught menuconfig.
It is not possible to setup address 0x0 as reset address because
make no sense to set it up at all.

Signed-off-by: Michal Simek 
Signed-off-by: John Williams

microblaze: Fix msr instruction detection

2011-02-07T18:13:01+00:00

Fix msr instructions detection. The current code
just use msrclr for loading msr content and compare
it with proper MSR content. If msrclr is not implemented
r8 contains pc address.
Previous code wanted to use MSR carry bit but if msrclr
wasn't implemented carry wasn't cleared.

Signed-off-by: Michal Simek

microblaze: Report if only one timer is used

2010-10-21T05:51:30+00:00

Kernel needs two timers because of clocksource and clockevent.
It is better to show warning message directly on early
console if available. If it isn't available kernel log buffer
contains it.

Signed-off-by: Michal Simek

of: Merge of_platform_bus_type with platform_bus_type

2010-07-24T15:57:51+00:00

of_platform_bus was being used in the same manner as the platform_bus.
The only difference being that of_platform_bus devices are generated
from data in the device tree, and platform_bus devices are usually
statically allocated in platform code.  Having them separate causes
the problem of device drivers having to be registered twice if it
was possible for the same device to appear on either bus.

This patch removes of_platform_bus_type and registers all of_platform
bus devices and drivers on the platform bus instead.  A previous patch
made the of_device structure an alias for the platform_device structure,
and a shim is used to adapt of_platform_drivers to the platform bus.

After all of of_platform_bus drivers are converted to be normal platform
drivers, the shim code can be removed.

Signed-off-by: Grant Likely 
Acked-by: David S. Miller

microblaze: Print early printk information to log buffer

2010-04-01T06:38:25+00:00

If early printk console is not enabled then all messages
are written to log buffer.

Signed-off-by: Michal Simek

microblaze: Move cache function to cache.c

2010-03-11T13:07:57+00:00

It is better to have init cache handling on one place.

Signed-off-by: Michal Simek

microblaze: Add support for Xilinx PCI host bridge

2010-03-11T13:05:18+00:00

This patch is based on powerpc patch
64f16502475ddf663169369fffff6da9b10ea9fb

We did some cleanups and removed powerpc parts.
There is one new debug early listing function too.

Exclude function is only in Debug options.

We tested in on custom board.

Signed-off-by: Michal Simek

microblaze: Support DMA

2010-03-11T12:56:29+00:00

Add DMA support for Microblaze. There are some part of this new feature:
1. Basic DMA support
2. Enable DMA debug option
3. Setup notifier

Ad 1. dma-mapping come from powerpc and x86 version and it is based on
generic dma-mapping-common.h

Ad 2. DMA support debug features which is used in generic file.
For more information please look at Documentation/DMA-API.txt

Ad 3. notifier is very important to setup dma_ops. Without this part
for example ll_temac driver failed because there are no setup dma operations.

Signed-off-by: Michal Simek

microblaze: Invalidate dcache before enabling it

2010-02-08T10:39:18+00:00

We found that on write-trough kernel is necessary to do that invalidation.
One WB is possible to use invalidation too.

Signed-off-by: Michal Simek

microblaze: Support for WB cache

2009-12-14T07:45:10+00:00

Microblaze version 7.20.d is the first MB version which can be run
on MMU linux. Please do not used previous version because they contain
HW bug.
Based on WB support was necessary to redesign whole cache design.
Microblaze versions from 7.20.a don't need to disable IRQ and cache
before working with them that's why there are special structures for it.

Signed-off-by: Michal Simek