Gitweb: http://git.kernel.org/linus/bc4d6f36db4b24bf328a5fd70038a2e609b9f028
Commit: bc4d6f36db4b24bf328a5fd70038a2e609b9f028
Parent: fecbd7366bf5a39eaae2c03541f0b412f319534f
Author: Robin Getz <robin.getz@analog.com>
AuthorDate: Thu Apr 23 14:15:04 2009 +0000
Committer: Mike Frysinger <vapier@gentoo.org>
CommitDate: Fri Jun 12 06:11:28 2009 -0400
Blackfin: document anomaly 05000234 workaround
Note the reason for using CHIPD over DSPID.
Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
arch/blackfin/include/asm/processor.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h
index 0eece23..3040415 100644
--- a/arch/blackfin/include/asm/processor.h
+++ b/arch/blackfin/include/asm/processor.h
@@ -131,8 +131,8 @@ unsigned long get_wchan(struct task_struct *p);
/* Get the Silicon Revision of the chip */
static inline uint32_t __pure bfin_revid(void)
{
- /* stored in the upper 4 bits */
- uint32_t revid = bfin_read_CHIPID() >> 28;
+ /* Always use CHIPID, to work around ANOMALY_05000234 */
+ uint32_t revid = (bfin_read_CHIPID() & CHIPID_VERSION) >> 28;
#ifdef CONFIG_BF52x
/* ANOMALY_05000357
--
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