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-rw-r--r--arch/arm/mach-omap2/i2c.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/i2c.c b/arch/arm/mach-omap2/i2c.c
new file mode 100644
index 00000000..79c478c4
--- /dev/null
+++ b/arch/arm/mach-omap2/i2c.c
@@ -0,0 +1,39 @@
+/*
+ * Helper module for board specific I2C bus registration
+ *
+ * Copyright (C) 2009 Nokia Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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
+ *
+ */
+
+#include <plat/cpu.h>
+#include <plat/i2c.h>
+
+#include "mux.h"
+
+void __init omap2_i2c_mux_pins(int bus_id)
+{
+ char mux_name[sizeof("i2c2_scl.i2c2_scl")];
+
+ /* First I2C bus is not muxable */
+ if (bus_id == 1)
+ return;
+
+ sprintf(mux_name, "i2c%i_scl.i2c%i_scl", bus_id, bus_id);
+ omap_mux_init_signal(mux_name, OMAP_PIN_INPUT);
+ sprintf(mux_name, "i2c%i_sda.i2c%i_sda", bus_id, bus_id);
+ omap_mux_init_signal(mux_name, OMAP_PIN_INPUT);
+}