Add barebone Raspberry Pi port. Supported parts:

  - Interrupts controller
  - Watchdog
  - System timer
  - Framebuffer (hardcoded resolution/bpp)

1 files changed, 52 insertions, 0 deletions

diff --git a/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h b/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h
new file mode 100644
index 000000000000..1d91046eb880
--- /dev/null
+++ b/sys/arm/broadcom/bcm2835/bcm2835_vcbus.h
@@ -0,0 +1,52 @@
+/*-
+ * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Defines for converting physical address to VideoCore bus address and back
+ */
+
+#ifndef _BCM2835_VCBUS_H_
+#define _BCM2835_VCBUS_H_
+
+#define	BCM2835_VCBUS_SDRAM_CACHED	0x40000000
+#define	BCM2835_VCBUS_SDRAM_UNCACHED	0xC0000000
+
+/*
+ * Convert physical address to VC bus address. Should be used 
+ * when submitting address over mailbox interface 
+ */
+#define	PHYS_TO_VCBUS(pa)	((pa) + BCM2835_VCBUS_SDRAM_CACHED)
+
+/*
+ * Convert address from VC bus space to physical. Should be used
+ * when address is returned by VC over mailbox interface. e.g.
+ * framebuffer base
+ */
+#define	VCBUS_TO_PHYS(vca)	((vca) - BCM2835_VCBUS_SDRAM_CACHED)
+
+#endif /* _BCM2835_VCBUS_H_ */