On Thu, Apr 03, 2014 at 03:24:54PM +0200, Guillaume Gardet wrote: > > Le 03/04/2014 15:08, Sascha Hauer a écrit : > > Hi, > > > > On Thu, Apr 03, 2014 at 02:48:11PM +0200, Alexander Graf wrote: > >> On 03.04.14 13:47, Guillaume Gardet wrote: > >>> Le 03/04/2014 13:39, Alexander Graf a écrit : > >>>> On 02.04.14 20:48, Guillaume Gardet wrote: > >>>>> Hi, > >>>>> > >>>>> please find in attachment an ARMv7 -default config update to fix > >>>>> Ethernet and HDMI output on iMX6 SABRE Lite board. It also add initial > >>>>> support to USB on this board. > >>>>> > >>>>> This patch is against master branch. > >>>>> > >>>>> Signed-off-by: Guillaume GARDET <[email protected]> > >>>> Moving modules from =m to =y is the wrong answer usually. Why don't the > >>>> modules work as modules? > >>> I do not know. > >>> Modules are loaded with no error but they do not work. The fact is > >>> switching FEC and SDMA from =m to =y fix the problems. It is true for > >>> 13.1 and master branches. > >> Sascha, you're the one closest to upstream i.MX development that I'm > >> aware of. Do you have any idea why we have to set FEC and SDMA to =y > >> to make them work? > > I just tried and compiled the fec driver as module. It still works and I > > don't see why it shouldn't. What could cause trouble is this in > > arch/arm/mach-imx/mach-imx6q.c: > > > > /* For imx6q sabrelite board: set KSZ9021RN RGMII pad skew */ > > static int ksz9021rn_phy_fixup(struct phy_device *phydev) > > { > > if (IS_BUILTIN(CONFIG_PHYLIB)) { > > /* min rx data delay */ > > phy_write(phydev, MICREL_KSZ9021_EXTREG_CTRL, > > 0x8000 | MICREL_KSZ9021_RGMII_RX_DATA_PAD_SCEW); > > ... > > } > > } > > > > This means the phy fixup is only executed when PHYLIB is builtin. The > > fec driver selects PHYLIB, so as long fec is builtin PHYLIB will be > > builtin also. If you build the fec as a module, then PHYLIB may be built > > as a module aswell. > > As a test try building the fec as module, but make CONFIG_PHYLIB=y. > > I will give it a try. > > > > > For the SDMA: What exactly doesn't work? Sound? > > Sound and video output.
Video? This should have nothing to do with SDMA. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | -- To unsubscribe, e-mail: [email protected] To contact the owner, e-mail: [email protected]
