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-rw-r--r--arch/arm/mach-bcm283x/phys2bus.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/arm/mach-bcm283x/phys2bus.c b/arch/arm/mach-bcm283x/phys2bus.c
new file mode 100644
index 0000000000..fc1c29905d
--- /dev/null
+++ b/arch/arm/mach-bcm283x/phys2bus.c
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2015 Stephen Warren
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <config.h>
+#include <phys2bus.h>
+
+unsigned long phys_to_bus(unsigned long phys)
+{
+#ifdef CONFIG_BCM2836
+ return 0xc0000000 | phys;
+#else
+ return 0x40000000 | phys;
+#endif
+}
+
+unsigned long bus_to_phys(unsigned long bus)
+{
+ return bus & ~0xc0000000;
+}
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