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authorH. Nikolaus Schaller <hns@goldelico.com>2012-03-26 20:55:28 +0200
committerH. Nikolaus Schaller <hns@goldelico.com>2012-03-26 20:55:28 +0200
commit92988a21ad4c4c9504295ccb580c9f806134471b (patch)
tree5effc9f14170112450de05c67dafbe8d5034d595 /u-boot/arch/avr32/include/asm/arch-at32ap700x/cacheflush.h
parentca2b506783b676c95762c54ea24dcfdaae1947c9 (diff)
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added boot script files to repository
Diffstat (limited to 'u-boot/arch/avr32/include/asm/arch-at32ap700x/cacheflush.h')
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diff --git a/u-boot/arch/avr32/include/asm/arch-at32ap700x/cacheflush.h b/u-boot/arch/avr32/include/asm/arch-at32ap700x/cacheflush.h
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+++ b/u-boot/arch/avr32/include/asm/arch-at32ap700x/cacheflush.h
@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2006 Atmel Corporation
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#ifndef __ASM_AVR32_CACHEFLUSH_H
+#define __ASM_AVR32_CACHEFLUSH_H
+
+/*
+ * Invalidate any cacheline containing virtual address vaddr without
+ * writing anything back to memory.
+ *
+ * Note that this function may corrupt unrelated data structures when
+ * applied on buffers that are not cacheline aligned in both ends.
+ */
+static inline void dcache_invalidate_line(volatile void *vaddr)
+{
+ asm volatile("cache %0[0], 0x0b" : : "r"(vaddr) : "memory");
+}
+
+/*
+ * Make sure any cacheline containing virtual address vaddr is written
+ * to memory.
+ */
+static inline void dcache_clean_line(volatile void *vaddr)
+{
+ asm volatile("cache %0[0], 0x0c" : : "r"(vaddr) : "memory");
+}
+
+/*
+ * Make sure any cacheline containing virtual address vaddr is written
+ * to memory and then invalidate it.
+ */
+static inline void dcache_flush_line(volatile void *vaddr)
+{
+ asm volatile("cache %0[0], 0x0d" : : "r"(vaddr) : "memory");
+}
+
+/*
+ * Invalidate any instruction cacheline containing virtual address
+ * vaddr.
+ */
+static inline void icache_invalidate_line(volatile void *vaddr)
+{
+ asm volatile("cache %0[0], 0x01" : : "r"(vaddr) : "memory");
+}
+
+/*
+ * Applies the above functions on all lines that are touched by the
+ * specified virtual address range.
+ */
+void dcache_invalidate_range(volatile void *start, size_t len);
+void dcache_clean_range(volatile void *start, size_t len);
+void dcache_flush_range(volatile void *start, size_t len);
+void icache_invalidate_range(volatile void *start, size_t len);
+
+static inline void dcache_flush_unlocked(void)
+{
+ asm volatile("cache %0[5], 0x08" : : "r"(0) : "memory");
+}
+
+/*
+ * Make sure any pending writes are completed before continuing.
+ */
+#define sync_write_buffer() asm volatile("sync 0" : : : "memory")
+
+#endif /* __ASM_AVR32_CACHEFLUSH_H */