linux.git/arch/microblaze/kernel/timer.c, branch v2.6.39 Linux kernel source tree microblaze: Fix sparse warning - timer.c 2011-03-09T07:09:57+00:00 Michal Simek monstr@monstr.eu 2011-02-07T10:33:47+00:00 29e3dbb10f0efff1297026679364dacc2c822145 Variables and init_microblaze_timecounter should be static. Warning log: CHECK arch/microblaze/kernel/timer.c arch/microblaze/kernel/timer.c:41:14: warning: symbol 'freq_div_hz' was not declared. Should it be static? arch/microblaze/kernel/timer.c:42:14: warning: symbol 'timer_clock_freq' was not declared. Should it be static? arch/microblaze/kernel/timer.c:205:12: warning: symbol 'init_microblaze_timecounter' was not declared. Should it be static? Signed-off-by: Michal Simek <monstr@monstr.eu> 
Variables and init_microblaze_timecounter should be static.

Warning log:
CHECK   arch/microblaze/kernel/timer.c
arch/microblaze/kernel/timer.c:41:14: warning: symbol 'freq_div_hz' was not declared. Should it be static?
arch/microblaze/kernel/timer.c:42:14: warning: symbol 'timer_clock_freq' was not declared. Should it be static?
arch/microblaze/kernel/timer.c:205:12: warning: symbol 'init_microblaze_timecounter' was not declared. Should it be static?

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: Remove additional compatible properties 2010-10-21T05:51:47+00:00 Michal Simek monstr@monstr.eu 2010-09-14T06:09:37+00:00 e65f1e2843d31d9ed74c7cce273adc0d97b5140f Device-tree BSP generates longer compatible properties that's why we can remove extra/old one. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Device-tree BSP generates longer compatible properties
that's why we can remove extra/old one.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Use static const char * const where possible 2010-10-21T05:51:45+00:00 Joe Perches joe@perches.com 2010-09-14T04:23:49+00:00 92ee8bd468b43938319d6ff51afb071b6e9ef758 Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Michal Simek <monstr@monstr.eu> 
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Report if only one timer is used 2010-10-21T05:51:30+00:00 Michal Simek monstr@monstr.eu 2010-08-06T12:13:13+00:00 69717607f028d7d4f4b355afb86556f3dd9363fc 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 <monstr@monstr.eu> 
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 <monstr@monstr.eu>
microblaze: Decrease time shifting values 2010-08-04T08:22:39+00:00 Michal Simek monstr@monstr.eu 2010-06-10T14:04:05+00:00 c8f77436d11190d0d9379f4fb2c6f22a155c8d8e Lower shifting values ensure that shifted 32bit counter value doesn't exceed 64bit cycle variable too fast. Signed-off-by: Michal Simek <monstr@monstr.eu> 
Lower shifting values ensure that shifted 32bit counter
value doesn't exceed 64bit cycle variable too fast.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Improve ftrace time measuring 2010-08-04T08:22:35+00:00 Michal Simek monstr@monstr.eu 2010-04-16T07:50:13+00:00 6f34b08f58f5097bb408e188e09cda75e61ee513 I had to comment sched_clock generic function because of broken toolchain. It is fine grain timing. Signed-off-by: Michal Simek <monstr@monstr.eu> 
I had to comment sched_clock generic function because of broken toolchain.
It is fine grain timing.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Register timecounter/cyclecounter 2009-12-14T07:40:09+00:00 Michal Simek monstr@monstr.eu 2009-11-06T11:31:00+00:00 519e9f417388ba055b7604db5f4f492f7c84f427 It is the same counter as we use as free running one. I would like to use it for ftrace. Signed-off-by: Michal Simek <monstr@monstr.eu> 
It is the same counter as we use as free running one.
I would like to use it for ftrace.

Signed-off-by: Michal Simek <monstr@monstr.eu>
microblaze: Sane handling of missing timer/intc in device tree 2009-08-18T08:33:30+00:00 John Williams john.williams@petalogix.com 2009-07-29T12:08:40+00:00 892ee92b81b6e7fa5f6147c96e11c6c1b9802fc6 This code path doesn't test any returned pointers for NULL, leading to a bad kernel page fault if there's no timer/intc found. Slightly better is to BUG(), but even better still would be a printk beforehand. Signed-off-by: John Williams <john.williams@petalogix.com> Signed-off-by: Michal Simek <monstr@monstr.eu> 
This code path doesn't test any returned pointers for NULL, leading to a bad
kernel page fault if there's no timer/intc found.

Slightly better is to BUG(), but even better still would be a printk beforehand.

Signed-off-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>