#include <common.h>
#include <malloc.h>
+/*
+ * Flush range from all levels of d-cache/unified-cache.
+ * Affects the range [start, start + size - 1].
+ */
__weak void flush_cache(unsigned long start, unsigned long size)
{
-#if defined(CONFIG_CPU_ARM1136)
-
-#if !defined(CONFIG_SYS_ICACHE_OFF)
- asm("mcr p15, 0, r1, c7, c5, 0"); /* invalidate I cache */
-#endif
-
-#if !defined(CONFIG_SYS_DCACHE_OFF)
- asm("mcr p15, 0, r1, c7, c14, 0"); /* Clean+invalidate D cache */
-#endif
-
-#endif /* CONFIG_CPU_ARM1136 */
-
-#ifdef CONFIG_CPU_ARM926EJS
-#if !(defined(CONFIG_SYS_ICACHE_OFF) && defined(CONFIG_SYS_DCACHE_OFF))
- /* test and clean, page 2-23 of arm926ejs manual */
- asm("0: mrc p15, 0, r15, c7, c10, 3\n\t" "bne 0b\n" : : : "memory");
- /* disable write buffer as well (page 2-22) */
- asm("mcr p15, 0, %0, c7, c10, 4" : : "r" (0));
-#endif
-#endif /* CONFIG_CPU_ARM926EJS */
- return;
+ flush_dcache_range(start, start + size);
}
/*
/* An empty stub, real implementation should be in platform code */
}
+int check_cache_range(unsigned long start, unsigned long stop)
+{
+ int ok = 1;
+
+ if (start & (CONFIG_SYS_CACHELINE_SIZE - 1))
+ ok = 0;
+
+ if (stop & (CONFIG_SYS_CACHELINE_SIZE - 1))
+ ok = 0;
+
+ if (!ok) {
+ warn_non_spl("CACHE: Misaligned operation at range [%08lx, %08lx]\n",
+ start, stop);
+ }
+
+ return ok;
+}
+
#ifdef CONFIG_SYS_NONCACHED_MEMORY
/*
* Reserve one MMU section worth of address space below the malloc() area that
return next;
}
#endif /* CONFIG_SYS_NONCACHED_MEMORY */
+
+#if defined(CONFIG_SYS_THUMB_BUILD)
+void invalidate_l2_cache(void)
+{
+ unsigned int val = 0;
+
+ asm volatile("mcr p15, 1, %0, c15, c11, 0 @ invl l2 cache"
+ : : "r" (val) : "cc");
+ isb();
+}
+#endif