Messages in this thread | | | Date | Mon, 1 Dec 2014 11:50:06 +0100 | From | Boris Brezillon <> | Subject | Re: [PATCH v3 05/11] memory: add Atmel EBI (External Bus Interface) driver |
| |
Hi Alexander,
On Mon, 01 Dec 2014 11:40:03 +0100 Alexander Stein <alexander.stein@systec-electronic.com> wrote:
> Hi Boris, > > On Monday 01 December 2014 11:27:21, Boris Brezillon wrote: > > The EBI (External Bus Interface) is used to access external peripherals > > (NOR, SRAM, NAND, and other specific devices like ethernet controllers). > > Each device is assigned a CS line and an address range and can have its > > own configuration (timings, access mode, bus width, ...). > > This driver provides a generic DT binding to configure a device according > > to its requirements. > > For specific device controllers (like the NAND one) the SMC timings > > should be configured by the controller driver through the matrix and > > smc syscon regmaps. > > > > Signed-off-by: Jean-Jacques Hiblot <jjhiblot@traphandler.com> > > Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> > > --- > > drivers/memory/Kconfig | 11 + > > drivers/memory/Makefile | 1 + > > drivers/memory/atmel-ebi.c | 627 +++++++++++++++++++++++++++++++++++++++++++++ > > 3 files changed, 639 insertions(+) > > create mode 100644 drivers/memory/atmel-ebi.c > > While I like this feature, shouldn't this driver go to drivers/bus/ like the imx-weim driver? The latter one does the same, so I wonder why one is in drivers/bus while the other is in drivers/memory. >
I don't have a strong opinion regarding where this driver should live (I even considered putting it in drivers/bus) :-). But note that there are other "external memory interface" drivers in drivers/memory too: TI AEMIF and Marvell DEVBUS ;-).
Does anyone else think this driver should go in drivers/bus ?
Regards,
Boris
-- Boris Brezillon, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
| |