Commit graph

15 commits

Author SHA1 Message Date
Mike Frysinger
5369fba136 Blackfin: merge anomalies 475 and 220 to follow official lists
Design found that these anomalies had the same root issue, so they've
merged 475 into 220.  We need to do the same to update to the latest
anomaly sheets.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:46 -04:00
Mike Frysinger
1ed181f248 Blackfin: move MPU anomaly check to common location
Keep all anomaly/arch checks in one place to keep logic simple.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-06 12:55:45 -04:00
Mike Frysinger
a2ca78cee1 Blackfin: check for anomaly 05000475
Parts that have on-chip L2 SRAM cannot safely utilize writeback caching
mode, so reject any attempts to use it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-11-25 02:35:41 -05:00
Robin Getz
96f1050d3d Blackfin: mass clean up of copyright/licensing info
Bill Gatliff & David Brownell pointed out we were missing some
copyrights, and licensing terms in some of the files in
./arch/blackfin, so this fixes things, and cleans them up.

It also removes:
 - verbose GPL text(refer to the top level ./COPYING file)
 - file names (you are looking at the file)
 - bug url (it's in the ./MAINTAINERS file)
 - "or later" on GPL-2, when we did not have that right

It also allows some Blackfin-specific assembly files to be under a BSD
like license (for people to use them outside of Linux).

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-10-07 04:36:26 -04:00
Jie Zhang
41ba653f24 Blackfin: decouple unrelated cache settings to get exact behavior
The current cache options don't really represent the hardware features.
They end up setting different aspects of the hardware so that the end
result is to turn on/off the cache.  Unfortunately, when we hit cache
problems with the hardware, it's difficult to test different settings to
root cause the problem.  The current settings also don't cleanly allow for
different caching behaviors with different regions of memory.

So split the configure options such that they properly reflect the settings
that are applied to the hardware.

Signed-off-by: Jie Zhang <jie.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-22 21:15:59 -04:00
Graf Yang
5ba766752d Blackfin: work around anomaly 05000220
When possible, work around anomaly 05000220 (external memory is write
back cached, but L2 is not cached).  If not possible, detect the
conditions at build time and reject any qualifying configurations.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2009-06-12 06:11:41 -04:00
Mike Frysinger
357fd373e1 Blackfin arch: remove duplicated ANOMALY_05000448 ifdef check
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-06 00:24:01 +08:00
Robin Getz
0004952242 Blackfin arch: Random read/write errors are a bad thing
Random read/write errors are a bad thing - so don't let anyone
(including the test bench) run on something we know is bad.

Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05 18:18:49 +08:00
Mike Frysinger
f7e989ab64 Blackfin arch: make sure people do not set the kernel load address too high
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2009-03-05 17:33:36 +08:00
Bryan Wu
639f657145 Blackfin arch: move include/asm-blackfin header files to arch/blackfin
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-08-27 10:51:02 +08:00
Mike Frysinger
1375204611 Blackfin arch: make sure the BSS and kernel load address are 4 byte aligned
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-08-06 17:10:57 +08:00
Michael Hennerich
99d95bbd48 Blackfin arch: Remove redundant kernel option
use kernel command line mem and max_mem bootargs to limit
availabe memory instead.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-07-14 17:04:14 +08:00
Mike Frysinger
a086ee2268 [Blackfin] arch: detect the memory available in the system on the fly by default
detect the memory available in the system on the fly by default
rather than forcing people to set this manually in the kconfig

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
2008-04-25 02:04:05 +08:00
Robin Getz
3bebca2d20 Blackfin arch: to do some consolidation of common code and common name spaces
now all BLKFIN should be BFIN, should be no functional changes.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-10 23:55:26 +08:00
Robin Getz
f16295e7e7 Blackfin arch: Fix CCLK and SCLK checks
Fix CCLK and SCLK checks, combine all arch checks into one file
for maintance. Checkins that remove more lines than they add are always
good.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-03 18:07:17 +08:00