1 files changed, 66 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/include/mach/spba.h b/arch/arm/plat-mxc/include/mach/spba.h
new file mode 100644
index 000000000000..8d018be8a0b7
--- /dev/null
+++ b/arch/arm/plat-mxc/include/mach/spba.h
@@ -0,0 +1,66 @@
+
+/*
+ * Copyright 2004-2008 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @defgroup SPBA Shared Peripheral Bus Arbiter (SPBA)
+ * @ingroup MSL_MX31 MSL_MX35 MSL_MX37 MSL_MX51 MSL_MXC91321
+ */
+
+/*!
+ * @file arch-mxc/spba.h
+ * @brief This file contains the Shared Peripheral Bus Arbiter (spba) API.
+ *
+ * @ingroup SPBA
+ */
+
+#ifndef __ASM_ARCH_MXC_SPBA_H__
+#define __ASM_ARCH_MXC_SPBA_H__
+
+#ifdef __KERNEL__
+
+#define MXC_SPBA_RAR_MASK       0x7
+
+/*!
+ * Defines three SPBA masters: A - ARM, C - SDMA (no master B for MX31)
+ */
+enum spba_masters {
+	SPBA_MASTER_A = 1,
+	SPBA_MASTER_B = 2,
+	SPBA_MASTER_C = 4,
+};
+
+/*!
+ * This function allows the three masters (A, B, C) to take ownership of a
+ * shared peripheral.
+ *
+ * @param  mod          specified module as defined in \b enum \b #spba_module
+ * @param  master       one of more (or-ed together) masters as defined in \b enum \b #spba_masters
+ *
+ * @return 0 if successful; -1 otherwise.
+ */
+int spba_take_ownership(int mod, int master);
+
+/*!
+ * This function releases the ownership for a shared peripheral.
+ *
+ * @param  mod          specified module as defined in \b enum \b #spba_module
+ * @param  master       one of more (or-ed together) masters as defined in \b enum \b #spba_masters
+ *
+ * @return 0 if successful; -1 otherwise.
+ */
+int spba_rel_ownership(int mod, int master);
+
+#endif				/* __KERNEL__ */
+
+#endif				/* __ASM_ARCH_MXC_SPBA_H__ */