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authorJie Zhang <jie.zhang@analog.com>2009-06-16 09:48:33 +0000
committerMike Frysinger <vapier@gentoo.org>2009-06-22 21:15:59 -0400
commit41ba653f24a39a0e6a4afe9b2763a95a57e042c2 (patch)
tree43eb086046d4eef764878e04512ddd215ca8845b /arch/blackfin/mach-common
parent7c039a90f02c3fdcab8d3ca170c05ad37014189e (diff)
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>
Diffstat (limited to 'arch/blackfin/mach-common')
-rw-r--r--arch/blackfin/mach-common/arch_checks.c4
-rw-r--r--arch/blackfin/mach-common/cpufreq.c2
-rw-r--r--arch/blackfin/mach-common/pm.c4
3 files changed, 5 insertions, 5 deletions
diff --git a/arch/blackfin/mach-common/arch_checks.c b/arch/blackfin/mach-common/arch_checks.c
index da93d920716..5998d8632a7 100644
--- a/arch/blackfin/mach-common/arch_checks.c
+++ b/arch/blackfin/mach-common/arch_checks.c
@@ -74,7 +74,7 @@
/* if 220 exists, can not set External Memory WB and L2 not_cached, either External Memory not_cached and L2 WB */
#if ANOMALY_05000220 && \
- ((defined(CONFIG_BFIN_WB) && defined(CONFIG_BFIN_L2_NOT_CACHED)) || \
- (!defined(CONFIG_BFIN_DCACHE) && defined(CONFIG_BFIN_L2_WB)))
+ ((defined(CONFIG_BFIN_EXTMEM_WRITEBACK) && !defined(CONFIG_BFIN_L2_DCACHEABLE)) || \
+ (!defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) && defined(CONFIG_BFIN_L2_WRITEBACK)))
# error You are exposing Anomaly 220 in this config, either config L2 as Write Through, or make External Memory WB.
#endif
diff --git a/arch/blackfin/mach-common/cpufreq.c b/arch/blackfin/mach-common/cpufreq.c
index 70e3411f558..85c65808327 100644
--- a/arch/blackfin/mach-common/cpufreq.c
+++ b/arch/blackfin/mach-common/cpufreq.c
@@ -141,7 +141,7 @@ static int __init __bfin_cpu_init(struct cpufreq_policy *policy)
sclk = get_sclk() / 1000;
#if ANOMALY_05000273 || ANOMALY_05000274 || \
- (!defined(CONFIG_BF54x) && defined(CONFIG_BFIN_DCACHE))
+ (!defined(CONFIG_BF54x) && defined(CONFIG_BFIN_EXTMEM_DCACHEABLE))
min_cclk = sclk * 2;
#else
min_cclk = sclk;
diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index bce5a84be49..9e7e27b7fc8 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -132,7 +132,7 @@ int bf53x_resume_l1_mem(unsigned char *memptr)
return 0;
}
-#ifdef CONFIG_BFIN_WB
+#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)
static void flushinv_all_dcache(void)
{
u32 way, bank, subbank, set;
@@ -175,7 +175,7 @@ static inline void dcache_disable(void)
#ifdef CONFIG_BFIN_DCACHE
unsigned long ctrl;
-#ifdef CONFIG_BFIN_WB
+#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)
flushinv_all_dcache();
#endif
SSYNC();