Le 03/04/2014 15:51, Sascha Hauer a écrit : > 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.
It is enough indeed. Ethernet is working like this. Thanks. Note: CONFIG_PHYLIB=y also enables CONFIG_OF_MDIO=y >> >>> For the SDMA: What exactly doesn't work? Sound? >> Sound and video output. > Video? This should have nothing to do with SDMA. After more testing, SDMA seems to be fine as a module (sorry) but I managed to get video working with SD/MMC modules as built-in instead of modules. It is crazy! What is the link between SD/MMC and video??? openSUSE uses an initrd with SD/MMC modules but for my testing I do not regenerate the initrd, so I need SD/MMC as built-in to boot on my SD rootfs. Guillaume -- To unsubscribe, e-mail: [email protected] To contact the owner, e-mail: [email protected]
