diff options
| author | Robin Getz <robin.getz@analog.com> | 2009-04-23 16:15:04 +0200 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2009-06-12 12:11:28 +0200 |
| commit | bc4d6f36db4b24bf328a5fd70038a2e609b9f028 (patch) | |
| tree | 68a2eb845ea54fe14721a8a4a18d116fdb0d0748 /arch | |
| parent | Blackfin: fix early L1 relocation crash (diff) | |
| download | linux-bc4d6f36db4b24bf328a5fd70038a2e609b9f028.tar.xz linux-bc4d6f36db4b24bf328a5fd70038a2e609b9f028.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | 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 0eece23b41c7..3040415523b2 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 |