Merge branch 'for-3.5/ahb' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into next/drivers

* tegra/ahb:
  ARM: tegra: Add SMMU enabler in AHB
  ARM: tegra: Add Tegra AHB driver

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 27 insertions, 0 deletions

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 204d3d4d7388..6a113a9bb87a 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -50,6 +50,14 @@ config TEGRA_PCI
         depends on ARCH_TEGRA_2x_SOC
         select PCI
 
+config TEGRA_AHB
+        bool "Enable AHB driver for NVIDIA Tegra SoCs"
+        default y
+        help
+          Adds AHB configuration functionality for NVIDIA Tegra SoCs,
+          which controls AHB bus master arbitration and some
+          perfomance parameters(priority, prefech size).
+
 comment "Tegra board type"
 
 config MACH_HARMONY
diff --git a/arch/arm/mach-tegra/include/mach/tegra-ahb.h b/arch/arm/mach-tegra/include/mach/tegra-ahb.h
new file mode 100644
index 000000000000..e0f8c84b1d8c
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/tegra-ahb.h
@@ -0,0 +1,19 @@
+/*
+ * Copyright (c) 2012, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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.
+ */
+
+#ifndef __MACH_TEGRA_AHB_H__
+#define __MACH_TEGRA_AHB_H__
+
+extern int tegra_ahb_enable_smmu(struct device_node *ahb);
+
+#endif  /* __MACH_TEGRA_AHB_H__ */