board/freescale/common: VSC3316/VSC3308 initialization code

Add code for configuring VSC3316/3308 crosspoint switches
Add README to understand the APIs

   - VSC 3316/3308 is a low-power, low-cost asynchronous crosspoint switch
     capable of data rates upto 11.5Gbps. VSC3316 has 16 input and 16
     output ports whereas VSC3308 has 8 input and 8 output ports.
     Programming of these devices are performed by two-wire or four-wire
     serial interface.

Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/board/freescale/common/vsc3316_3308.h b/board/freescale/common/vsc3316_3308.h
new file mode 100644
index 0000000..effd66d
--- /dev/null
+++ b/board/freescale/common/vsc3316_3308.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2012 Freescale Semiconductor, 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; 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 __VSC_CROSSBAR_H_
+#define __VSC_CROSSBAR_H	1_
+
+#include <common.h>
+#include <i2c.h>
+#include <errno.h>
+
+int vsc_if_enable(unsigned int vsc_addr);
+int vsc3316_config(unsigned int vsc_addr, const int8_t con_arr[][2],
+		unsigned int num_con);
+int vsc3308_config(unsigned int vsc_addr, const int8_t con_arr[][2],
+		unsigned int num_con);
+void vsc_wp_config(unsigned int vsc_addr);
+
+#endif	/* __VSC_CROSSBAR_H_ */