Merge branch 'master' of git://git.denx.de/u-boot-sh

[u-boot] / lib_blackfin / cache.c

diff --git a/lib_blackfin/cache.c b/lib_blackfin/cache.c
index c2f6e2848ef1db7750ba03edfb41de2ae55f9adf..870c5bfbac748aef7d104526d9db75fd2b0a28b1 100644 (file)
--- a/lib_blackfin/cache.c
+++ b/lib_blackfin/cache.c
@@ -11,6 +11,7 @@
 
 #include <common.h>
 #include <asm/blackfin.h>
+#include <asm/mach-common/bits/mpu.h>
 
 void flush_cache(unsigned long addr, unsigned long size)
 {
@@ -24,3 +25,37 @@ void flush_cache(unsigned long addr, unsigned long size)
        if (dcache_status())
                blackfin_dcache_flush_range((void *)addr, (void *)(addr + size));
 }
+
+void icache_enable(void)
+{
+       bfin_write_IMEM_CONTROL(IMC | ENICPLB);
+       SSYNC();
+}
+
+void icache_disable(void)
+{
+       bfin_write_IMEM_CONTROL(0);
+       SSYNC();
+}
+
+int icache_status(void)
+{
+       return bfin_read_IMEM_CONTROL() & IMC;
+}
+
+void dcache_enable(void)
+{
+       bfin_write_DMEM_CONTROL(ACACHE_BCACHE | ENDCPLB | PORT_PREF0);
+       SSYNC();
+}
+
+void dcache_disable(void)
+{
+       bfin_write_DMEM_CONTROL(0);
+       SSYNC();
+}
+
+int dcache_status(void)
+{
+       return bfin_read_DMEM_CONTROL() & ACACHE_BCACHE;
+}