aboutsummaryrefslogtreecommitdiff
path: root/include/asm-arm/arch-ks8695/memory.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-arm/arch-ks8695/memory.h')
-rw-r--r--include/asm-arm/arch-ks8695/memory.h49
1 files changed, 49 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ks8695/memory.h b/include/asm-arm/arch-ks8695/memory.h
new file mode 100644
index 00000000000..24f6a6e4a30
--- /dev/null
+++ b/include/asm-arm/arch-ks8695/memory.h
@@ -0,0 +1,49 @@
+/*
+ * include/asm-arm/arch-ks8695/memory.h
+ *
+ * Copyright (C) 2006 Andrew Victor
+ *
+ * KS8695 Memory definitions
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <asm/hardware.h>
+
+/*
+ * Physical SRAM offset.
+ */
+#define PHYS_OFFSET KS8695_SDRAM_PA
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_PCI
+
+/* PCI mappings */
+#define __virt_to_bus(x) ((x) - PAGE_OFFSET + KS8695_PCIMEM_PA)
+#define __bus_to_virt(x) ((x) - KS8695_PCIMEM_PA + PAGE_OFFSET)
+
+/* Platform-bus mapping */
+extern struct bus_type platform_bus_type;
+#define is_lbus_device(dev) (dev && dev->bus == &platform_bus_type)
+#define __arch_dma_to_virt(dev, x) ({ is_lbus_device(dev) ? \
+ __phys_to_virt(x) : __bus_to_virt(x); })
+#define __arch_virt_to_dma(dev, x) ({ is_lbus_device(dev) ? \
+ (dma_addr_t)__virt_to_phys(x) : (dma_addr_t)__virt_to_bus(x); })
+#define __arch_page_to_dma(dev, x) __arch_virt_to_dma(dev, page_address(x))
+
+#else
+
+#define __virt_to_bus(x) __virt_to_phys(x)
+#define __bus_to_virt(x) __phys_to_virt(x)
+
+#endif
+
+#endif
+
+#endif