Hi Christian > Christian Gmeiner <christian.gmeiner@xxxxxxxxx> hat am 26. Februar 2014 um > 20:15 geschrieben: > > > Hi Rolf > > 2014-02-26 15:48 GMT+01:00 Rolf Evers-Fischer <embedded24@xxxxxxxxxxxxxxxx>: > > Hi Christian, > > > >> Peter Chen <Peter.Chen@xxxxxxxxxxxxx> hat am 26. Februar 2014 um 03:05 > >> geschrieben: > >> > >> > >> > >> > >> >> patches. I am working some days on this topic but without much > >> > >> >> success and I am running out of time :/ > >> > >> >> > >> > >> > > >> > >> > Will keep you posted. > >> > >> > > >> > >> > >> > >> Hope you soon will find some time. > >> > >> > >> > > > >> > > Since some chipidea code needs to change before adapting HSIC support, > >> > > I submit a temp version at my git, it is not suitable for upstream, > >> > > but can let the hsic work. > >> > > > >> > > github.com/hzpeterchen/linux-usb.git > >> > > branch: fsl-hsic-support > >> > > > >> > > >> > I did backport those patches to 3.13.4 but it does not work. Here you can > >> > find a log http://dpaste.com/hold/1656798/ generated by this dts: > >> > > >> > &usdhc3 { > >> > pinctrl-names = "default"; > >> > pinctrl-0 = <&pinctrl_usdhc3_1>; > >> > bus-width = <8>; > >> > non-removable; > >> > status = "okay"; > >> > }; > >> > > >> > &usbh1 { > >> > status = "okay"; > >> > }; > >> > > >> > &usbh2 { > >> > pinctrl-names = "idle", "active"; > >> > pinctrl-0 = <&pinctrl_usbh2_1>; > >> > pinctrl-1 = <&pinctrl_usbh2_2>; > >> > osc-clkgate-delay = <0x3>; > >> > status = "okay"; > >> > }; > >> > > >> > &usbh3 { > >> > pinctrl-names = "idle", "active"; > >> > pinctrl-0 = <&pinctrl_usbh3_1>; > >> > pinctrl-1 = <&pinctrl_usbh3_2>; > >> > osc-clkgate-delay = <0x3>; > >> > status = "okay"; > >> > }; > >> > > >> > &fec { > >> > pinctrl-names = "default"; > >> > pinctrl-0 = <&pinctrl_enet_4>; > >> > phy-mode = "mii"; > >> > status = "okay"; > >> > }; > >> > > >> > greets > >> > -- > >> > Christian Gmeiner, MSc > >> > > >> > https://soundcloud.com/christian-gmeiner > >> > > >> > >> try to cherry-pick > >> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=73de93440186c595a031046e266f6caaac106aa0 > >> > > were you successful with this patch? > > If not: Have you already tried to disable the "&fec"? I'm asking, because I > > saw > > this comment from Peter Chen: > > "Since hsic has pin conflict with ethernet, we disable ethernet at this > > dts...". > > > > I can also offer you to upload a bootlog of our IMX6Q board with HSIC > > working on > > Bus 003, if it helps. > > That would be awesome. Could you enable regulator and chipidea debug > in the kernel. Would it be a problem to get the used > kernel configuration too? > Here is the bootlog: http://dpaste.com/hold/1665533/ And here is my kernelconfig for 3.13: http://dpaste.com/hold/1665559/ > > > > By the way: I was using the patch from > > http://www.spinics.net/lists/arm-kernel/msg303287.html for my board in > > previous > > kernel versions. > > > > That did not work Well, it's not the only patch that we were using in 3.10 kernel: We had 30 chipidea patches on the 3.10 kernel. Fortunately a lot of them have been integrated into the mainline, but 4 of them are still remaining. Currently I don't know, if they are necessary for proper HSIC function. > - maybe its a hw problem in the design. > As you can see from the bootlog, we have connected a SMSC USB4640 HSIC hub to the I.MX. with pin 43 ("HSIC_STROBE") connected to pin C23 ("RGMII_TX_CTL") of the IMX and pin 42 ("HSIC_DAT") connected to pin D21 ("RGMII_TXC") of the IMX. It seems that pin 39 ("HSIC_IMP") of the SMSC chip is set to "high" (= approx. 50 Ohm impedance, according to the USB4640 datasheet). Kind regards, Rolf -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
