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| author | Hiroshi DOYU <hdoyu@nvidia.com> | 2012-05-07 12:24:48 +0200 |
|---|---|---|
| committer | Stephen Warren <swarren@nvidia.com> | 2012-05-08 13:30:49 -0600 |
| commit | 87d0bab2cba3c31624b80cc68bcf5e29ef969458 (patch) | |
| tree | 1bdf28fd56102096eba91cec450a5b2cced5ce75 /arch/arm | |
| parent | e816b57a337ea3b755de72bec38c10c864f23015 (diff) | |
| download | linux-87d0bab2cba3c31624b80cc68bcf5e29ef969458.tar.gz linux-87d0bab2cba3c31624b80cc68bcf5e29ef969458.tar.bz2 linux-87d0bab2cba3c31624b80cc68bcf5e29ef969458.zip | |
ARM: tegra: Add Tegra AHB driver
Tegra AHB Bus conforms to the AMBA Specification (Rev 2.0) Advanced
High-performance Bus (AHB) architecture.
The AHB Arbiter controls AHB bus master arbitration. This effectively
forms a second level of arbitration for access to the memory
controller through the AHB Slave Memory device. The AHB pre-fetch
logic can be configured to enhance performance for devices doing
sequential access. Each AHB master is assigned to either the high or
low priority bin. Both Tegra20/30 have this AHB bus.
Some of configuration params could be passed from DT too if needed.
Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-tegra/Kconfig | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index d0f2546706ca..8bf27b54288e 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 |