On Wednesday 25 April 2012, Felipe Balbi wrote: > On Wed, Apr 25, 2012 at 08:37:47AM +0300, Hiroshi Doyu wrote: > > On Tue, 24 Apr 2012 21:56:45 +0200 > > Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote: > > > > > On Tue, Apr 24, 2012 at 03:05:14PM +0300, Hiroshi DOYU wrote: > > > > The 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. > > > > > > > > Signed-off-by: Hiroshi DOYU <hdoyu@xxxxxxxxxx> > > > > Cc: Felipe Balbi <balbi@xxxxxx> > > > > Cc: Arnd Bergmann <arnd@xxxxxxxx> > > > > --- > > > > Update: > > > > - Use platform_device to get info from dt dynamically.(Felipe/Arnd) > > > > --- > > > > arch/arm/mach-tegra/Makefile | 1 + > > > > arch/arm/mach-tegra/tegra-ahb.c | 285 +++++++++++++++++++++++++++++++++++++++ > > > > 2 files changed, 286 insertions(+), 0 deletions(-) > > > > > > 1. I thought we weren't going to have any more drivers under > > > arch/arm > > > > Can this driver be located under "drivers/misc"? Or is there any better place? > > maybe drivers/platform/arm/ ?? I really wouldn't want to add that directory: It has the risk of letting people add random crap there that may or may not be related to ARM (the company) and/or ARM (the architecture). I think it could go into drivers/amba/ along with the primecell bus driver. The two drivers are for two different aspects of the AMBA spec and don't actually depend on one another as far as I can tell, but it's at least a fitting name, and it doesn't depend on the ARM architecture, which is important because the driver could be used on other architectures that are connected to an AHB bus. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
