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

[u-boot] / arch / microblaze / cpu / cache.c

diff --git a/arch/microblaze/cpu/cache.c b/arch/microblaze/cpu/cache.c
index 3b7c4d4f7f9a61b79a0dc1cde5b778e5aab12b3d..ce066b96e99321fe62567cdf59ecde53e09937a5 100644 (file)
--- a/arch/microblaze/cpu/cache.c
+++ b/arch/microblaze/cpu/cache.c
@@ -50,6 +50,8 @@ void  icache_enable (void) {
 }
 
 void   icache_disable(void) {
+       /* we are not generate ICACHE size -> flush whole cache */
+       flush_cache(0, 32768);
        MSRCLR(0x20);
 }
 
@@ -58,5 +60,26 @@ void dcache_enable (void) {
 }
 
 void   dcache_disable(void) {
+#ifdef XILINX_USE_DCACHE
+       flush_cache(0, XILINX_DCACHE_BYTE_SIZE);
+#endif
        MSRCLR(0x80);
 }
+
+void flush_cache (ulong addr, ulong size)
+{
+       int i;
+       for (i = 0; i < size; i += 4)
+               asm volatile (
+#ifdef CONFIG_ICACHE
+                               "wic    %0, r0;"
+#endif
+                               "nop;"
+#ifdef CONFIG_DCACHE
+                               "wdc.flush      %0, r0;"
+#endif
+                               "nop;"
+                               :
+                               : "r" (addr + i)
+                               : "memory");
+}