Diffstat (limited to 'src/arch/arm/include/arch/memlayout.h')
1 files changed, 38 insertions, 0 deletions
diff --git a/src/arch/arm/include/arch/memlayout.h b/src/arch/arm/include/arch/memlayout.h
new file mode 100644
@@ -0,0 +1,38 @@
+ * This file is part of the coreboot project.
+ * Copyright 2014 Google Inc.
+ * 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; version 2 of the License.
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+/* This file contains macro definitions for memlayout.ld linker scripts. */
+#define TTB(addr, size) \
+ REGION(ttb, addr, size, 16K) \
+ _ = ASSERT(size >= 16K + IS_ENABLED(CONFIG_ARM_LPAE) * 32, \
+ "TTB must be 16K (+ 32 for LPAE)!");
+/* ARM stacks need 8-byte alignment and stay in one place through ramstage. */
+#define STACK(addr, size) REGION(stack, addr, size, 8)
+#define DMA_COHERENT(addr, size) \
+ REGION(dma_coherent, addr, size, (1 + IS_ENABLED(CONFIG_ARM_LPAE)) * 1M) \
+ _ = ASSERT(size % ((1 + IS_ENABLED(CONFIG_ARM_LPAE)) * 1M) == 0, \
+ "DMA coherency buffer must fit exactly in full superpages!");
+#endif /* __ARCH_MEMLAYOUT_H */