[RFC PATCH 0/2] usb: Reuse fsl driver code for synopsys usb controller
balbi at ti.com
Tue Apr 22 01:18:57 EST 2014
On Sun, Apr 20, 2014 at 09:57:03PM +0530, Punnaiah Choudary Kalluri wrote:
> Zynq soc contains a dual role usb controller and this IP is from synopsys. We
> observed that there is driver available for this controller from freescale and
> decided to reuse this driver for zynq use.
> Here is the link for zynq soc TRM. Please refer chapter 15 for usb controller
> related information.
> The following series of patches add initial support for zynq soc in fsl gadget controller
> driver and fsl host controller driver.
> Based on these patches, I have the following concerns and sugesstions
> Since the freescale usb driver is for synopsys IP, Please consider rebranding
> this driver name and config options to reflect that it is a sysnopsys IP. So
> that other vendors who using this IP can reuse thie driver.
> Also the ehci-fsl.c is for powerpc based soc's, and zynq is ARM based, i have
> protected the code which is specifc to freescale with CONFIG_FSL_SOC. Please
> suggest if there is a better way of doing this?
> Punnaiah Choudary Kalluri (2):
> usb: gadget: fsl_udc: Add support for zynq usb device controller
> usb: ehci-fsl: Add support for zynq usb host controller
> drivers/usb/gadget/Kconfig | 2 +-
> drivers/usb/gadget/Makefile | 1 +
> drivers/usb/gadget/fsl_mxc_udc.c | 21 ++++++++++++
> drivers/usb/gadget/fsl_udc_core.c | 5 +++
> drivers/usb/gadget/fsl_usb2_udc.h | 2 +-
> drivers/usb/host/Kconfig | 2 +-
> drivers/usb/host/ehci-fsl.c | 63 ++++++++++++++++++++++++++++++++++++-
> drivers/usb/host/fsl-mph-dr-of.c | 9 +++++
> 8 files changed, 101 insertions(+), 4 deletions(-)
as somebody else already mentioned, chipidea is the way to go.
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