Hello, Ping?
Regards, Sanchayan. On 16-08-09 23:44:58, Sanchayan Maity wrote: > Hello, > > This is the second version of the patchset for migrating Vybrid > USB driver to driver model. > > Compare to the first version, this version takes care of dr_mode > property and correctly handles OTG as well when gpio is specified > for use as ID detection pin. This is an essential requirement for > OTG as Vybrid USB controller is not a true OTG though it can be > configured as either host or device. The ID pin which is unique > for OTG operation is not present on Vybrid. > > The problem with client that I was observing was related to sequence > numbers. While trying to implement the OTG functionality I observed > that if during probe of USB0 if it returns ENODEV, the probe of USB1 > provides a sequence number of 0 while we expect 1. The code relies > on sequence numbers for initialising the appropriate peripherals. > I use the bind operation to force a sequence number. This also seems > to solve the problems I was having with USB client and mentioned > in the previous version of the patchset. > > Host and client functionality are both functional with this patch. > Patch series is based on top of latest u-boot master at the moment > of this writing. Tested on Toradex Colibri Vybrid VF61 module. > > Thanks to Lukasz and Stefan for their comments. > > V1 Patches: > [1]. > https://patchwork.ozlabs.org/patch/655370/ > [2]. > https://patchwork.ozlabs.org/patch/655371/ > [3]. > https://patchwork.ozlabs.org/patch/655372/ > [4]. > https://patchwork.ozlabs.org/patch/655373/ > > Sanchayan Maity (4): > usb: host: ehci-vf: Migrate Vybrid USB to driver model > ARM: dts: vf: Add device tree node for USB on Vybrid > ARM: dts: vf-colibri: Enable USB device tree node for Colibri Vybrid > configs: colibri_vf_defconfig: Enable USB driver model for Colibri Vybrid > > arch/arm/dts/vf-colibri.dtsi | 11 +++ > arch/arm/dts/vf.dtsi | 14 +++ > configs/colibri_vf_defconfig | 1 + > drivers/usb/host/ehci-vf.c | 208 > +++++++++++++++++++++++++++++++++++++++++-- > 4 files changed, 227 insertions(+), 7 deletions(-) > > -- > 2.9.2 > _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
