[PATCH v6 03/12] ARM: tegra: Move AHB Kconfig to drivers/amba

[Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

From: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>

This will allow the Kconfig option to be shared among 32-bit and 64-bit
ARM.

Signed-off-by: Thierry Reding <treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
Hi Russell,

As explained in the cover-letter there are tight dependencies between the
patches in this series, so for simplicity I'd like to take this patch through
the Tegra tree with your Acked-by.

Thanks,
Thierry

Changes in v4:
- add precursory patch introducing drivers/amba/Kconfig, rebase on top

Changes in v3:
- select ARM_AMBA from ARCH_TEGRA to enable the TEGRA_AHB driver

 arch/arm/mach-tegra/Kconfig |  9 +--------
 drivers/Kconfig             |  2 ++
 drivers/amba/Kconfig        | 12 ++++++++++++
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 095399618ca5..d0be9a1ef6b8 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -2,6 +2,7 @@ menuconfig ARCH_TEGRA
 	bool "NVIDIA Tegra" if ARCH_MULTI_V7
 	select ARCH_REQUIRE_GPIOLIB
 	select ARCH_SUPPORTS_TRUSTED_FOUNDATIONS
+	select ARM_AMBA
 	select ARM_GIC
 	select CLKSRC_MMIO
 	select HAVE_ARM_SCU if SMP
@@ -59,12 +60,4 @@ config ARCH_TEGRA_124_SOC
 	  Support for NVIDIA Tegra T124 processor family, based on the
 	  ARM CortexA15MP CPU
 
-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
-	  performance parameters(priority, prefech size).
-
 endif
diff --git a/drivers/Kconfig b/drivers/Kconfig
index 569ff7886dc3..694d5a70d6ce 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -1,5 +1,7 @@
 menu "Device Drivers"
 
+source "drivers/amba/Kconfig"
+
 source "drivers/base/Kconfig"
 
 source "drivers/bus/Kconfig"
diff --git a/drivers/amba/Kconfig b/drivers/amba/Kconfig
index d1cba6a9b3b8..4a5c9d279059 100644
--- a/drivers/amba/Kconfig
+++ b/drivers/amba/Kconfig
@@ -1,2 +1,14 @@
 config ARM_AMBA
 	bool
+
+if ARM_AMBA
+
+config TEGRA_AHB
+	bool "Enable AHB driver for NVIDIA Tegra SoCs"
+	default y if ARCH_TEGRA
+	help
+	  Adds AHB configuration functionality for NVIDIA Tegra SoCs,
+	  which controls AHB bus master arbitration and some performance
+	  parameters (priority, prefetch size).
+
+endif
-- 
2.1.3