diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2009-11-02 21:57:45 -0500 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2009-11-25 02:35:41 -0500 |
| commit | a2ca78cee1c428843f6833150c7e64db05f9d668 (patch) | |
| tree | c56270c3dd2ff1f6a634d21406cc2aaebe9a2d3d /arch/blackfin | |
| parent | f99e8c1d0f41011870d14d5990c65e65b123f2ef (diff) | |
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>
Diffstat (limited to 'arch/blackfin')
| -rw-r--r-- | arch/blackfin/mach-common/arch_checks.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/blackfin/mach-common/arch_checks.c b/arch/blackfin/mach-common/arch_checks.c index 9dbafcdcf479..f2ca211a76a0 100644 --- a/arch/blackfin/mach-common/arch_checks.c +++ b/arch/blackfin/mach-common/arch_checks.c | |||
| @@ -57,3 +57,8 @@ | |||
| 57 | (!defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) && defined(CONFIG_BFIN_L2_WRITEBACK))) | 57 | (!defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) && defined(CONFIG_BFIN_L2_WRITEBACK))) |
| 58 | # error You are exposing Anomaly 220 in this config, either config L2 as Write Through, or make External Memory WB. | 58 | # error You are exposing Anomaly 220 in this config, either config L2 as Write Through, or make External Memory WB. |
| 59 | #endif | 59 | #endif |
| 60 | |||
| 61 | #if ANOMALY_05000475 && \ | ||
| 62 | (defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)) | ||
| 63 | # error "Anomaly 475 does not allow you to use Write Back cache with L2 or External Memory" | ||
| 64 | #endif | ||