linux-toradex.git/arch/microblaze/include/asm/cpuinfo.h, branch tegra Linux kernel for Apalis and Colibri modules microblaze: Unprivileged stream instruction awareness 2011-07-25T07:13:42+00:00 John A. Williams john.williams@petalogix.com 2011-05-24T08:57:11+00:00 8904976e8ca45be3ec75acc71f5d855ef671a079 Add cpuinfo support for the new MicroBlaze option permitting userspace (unprivileged) access to the streaming instructions (FSL / AXI-stream). Emit a noisy warning at bootup if this is enabled, because bad user code can potentially lockup the CPU. Signed-off-by: John A. Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu> 
Add cpuinfo support for the new MicroBlaze option permitting userspace
(unprivileged) access to the streaming instructions (FSL / AXI-stream).

Emit a noisy warning at bootup if this is enabled, because bad user code
can potentially lockup the CPU.

Signed-off-by: John A. Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Fix sparse warning - cpuinfo.h 2011-03-09T07:09:58+00:00 Michal Simek monstr@monstr.eu 2011-02-07T10:56:14+00:00 8afe3839a993beda2ebc119c0a545dcc5baecc08 Warning log: CHECK arch/microblaze/kernel/cpu/cpuinfo-static.c arch/microblaze/include/asm/cpuinfo.h:101:21: warning: incorrect type in argument 1 (different signedness) arch/microblaze/include/asm/cpuinfo.h:101:21: expected unsigned int const [usertype] *p arch/microblaze/include/asm/cpuinfo.h:101:21: got int *[assigned] val ... Signed-off-by: Michal Simek <monstr@monstr.eu> 
Warning log:
CHECK   arch/microblaze/kernel/cpu/cpuinfo-static.c
arch/microblaze/include/asm/cpuinfo.h:101:21: warning: incorrect type in argument 1 (different signedness)
arch/microblaze/include/asm/cpuinfo.h:101:21:    expected unsigned int const [usertype] *p
arch/microblaze/include/asm/cpuinfo.h:101:21:    got int *[assigned] val
...

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Support timer on AXI lite 2010-10-21T05:52:00+00:00 Michal Simek monstr@monstr.eu 2010-10-07T07:39:21+00:00 ccea0e6e49e4db8ee7968c183ecddb3e399c5f54 New microblaze systems uses two buses. One for memories and flashes and the second for low-speed peripherals which can run on different CLK. This is the reason why the kernel is trying to read clock-frequency directly from node. If there is then the kernel will work with it. If not then cpu CLK is used. Signed-off-by: Michal Simek <monstr@monstr.eu> 
New microblaze systems uses two buses. One for memories
and flashes and the second for low-speed peripherals
which can run on different CLK. This is the reason
why the kernel is trying to read clock-frequency
directly from node. If there is then the kernel will
work with it. If not then cpu CLK is used.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Add support for little-endian Microblaze 2010-10-21T05:51:59+00:00 Michal Simek monstr@monstr.eu 2010-09-28T06:04:14+00:00 02b08045a0306c38131c6d7155c4034a775d40b1 Microblaze little-endian toolchain exports __MICROBLAZEEL__ which is used in the kernel to identify little/big endian. The most of the changes are in loading values from DTB which is always big endian. Little endian platforms are based on new AXI bus which has impact to early uartlite initialization. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Microblaze little-endian toolchain exports __MICROBLAZEEL__
which is used in the kernel to identify little/big endian.

The most of the changes are in loading values from DTB which
is always big endian.

Little endian platforms are based on new AXI bus which has
impact to early uartlite initialization.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Add PVR for endians plus detection 2010-10-21T05:51:57+00:00 Michal Simek monstr@monstr.eu 2010-08-13T10:47:42+00:00 8e2ad016b20f98790d5995aae1d157d1613ab9e6 Upcomming microblaze version will support little-endian. Signed-off-by: Michal Simek <monstr@monstr.eu> Acked-by: Grant Likely <grant.likely@secretlab.ca> 
Upcomming microblaze version will support little-endian.

Signed-off-by: Michal Simek <monstr@monstr.eu>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
microblaze: Extend cpuinfo for support write-back caches 2009-12-14T07:44:58+00:00 Michal Simek monstr@monstr.eu 2009-10-14T09:12:50+00:00 e051af576a414b6fcfe6589e99b2357522718050 There is missing checking agains PVR but this is not important for now. There are some missing checking too. Signed-off-by: Michal Simek <monstr@monstr.eu> 
There is missing checking agains PVR but this is not important
for now. There are some missing checking too.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Fix cache_line_lenght 2009-12-14T07:44:57+00:00 Michal Simek monstr@monstr.eu 2009-10-08T11:06:42+00:00 44e4e196a9b3a703ebe273ffe3fb6cda326fe5d3 We used cache_line as cache_line_lenght. For this reason we did cache flushing 4 times longer than was necessary. Signed-off-by: Michal Simek <monstr@monstr.eu> 
We used cache_line as cache_line_lenght. For this reason
we did cache flushing 4 times longer than was necessary.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze_v8: Cpuinfo handling 2009-03-27T13:25:11+00:00 Michal Simek monstr@monstr.eu 2009-03-27T13:25:11+00:00 406107dacde125346c313d34534eed937eb25444 Reviewed-by: Ingo Molnar <mingo@elte.hu> Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com> Acked-by: John Linn <john.linn@xilinx.com> Acked-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu> 
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>