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authorArnd Bergmann <arnd@arndb.de>2012-05-14 22:53:49 +0200
committerArnd Bergmann <arnd@arndb.de>2012-05-15 13:30:41 +0200
commit21b7f153dd0d7366197c37e7a630c7585db0b8ea (patch)
tree065ad22312b08aca338479a823d60bec23fde120 /arch/arm/mach-tegra
parent0200c0a66cb727fae13bcd938d44a0841a6530d1 (diff)
parent89c788bab1f0374ae05aef7560066442ceb55384 (diff)
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>
Diffstat (limited to 'arch/arm/mach-tegra')
-rw-r--r--arch/arm/mach-tegra/Kconfig8
-rw-r--r--arch/arm/mach-tegra/include/mach/tegra-ahb.h19
2 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 204d3d4d738..6a113a9bb87 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 00000000000..e0f8c84b1d8
--- /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__ */