Commit Graph

7 Commits

Author SHA1 Message Date
Kumar Gala
bced7ccefa ppc: Fix roll over bug in flush_cache()
If we call flush_cache(0xfffff000, 0x1000) it would never
terminate the loop since end = 0xffffffff and we'd roll over
our counter from 0xfffffe0 to 0 (assuming a 32-byte cache line)

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2009-02-10 00:47:18 +01:00
Dave Liu
e39cd81c44 lib_ppc: rework the flush_cache
- It is possible to miss flush/invalidate the last
  cache line, we fix it at here.
- add the volatile and memory clobber.

They are pointed by Scott Wood.

Signed-off-by: Dave Liu <daveliu@freescale.com>
2008-12-15 22:31:39 +01:00
Jean-Christophe PLAGNIOL-VILLARD
6d0f6bcf33 rename CFG_ macros to CONFIG_SYS
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-18 21:54:03 +02:00
Yuri Tikhonov
138105efe1 ppc flush_cache: add watch-dog triggering into the loops.
Some boards (e.g. lwmon5) need rather a frequent watch-dog
kicking. Since the time it takes for the flush_cache() function
to complete its job depends on the size of data being flushed, one
may encounter watch-dog resets on such boards when, for example,
download big files over ethernet.

Signed-off-by: Yuri Tikhonov <yur@emcraft.com>
2008-04-29 14:48:50 +02:00
Stefan Roese
9b94ac61d2 ppc4xx: Rework 4xx cache support
New cache handling functions added and all existing functions
moved from start.S into seperate cache.S.

Signed-off-by: Stefan Roese <sr@denx.de>
2007-10-31 21:21:46 +01:00
wdenk
0db5bca807 * Patch by Martin Winistoerfer, 23 Mar 2003
- Add port to MPC555/556 microcontrollers
  - Add support for cmi customer board with
    Intel 28F128J3A, 28F320J3A or 28F640J3A flash.

* Patch by Rick Bronson, 28 Mar 2003:
  - fix common/cmd_nand.c
2003-03-31 17:27:09 +00:00
wdenk
affae2bff8 Initial revision 2002-08-17 09:36:01 +00:00