* Belisko Marek <marek.belisko@xxxxxxxxx> [160621 14:42]: > Hi Tony, > > On Wed, Jun 1, 2016 at 1:07 AM, Tony Lindgren <tony@xxxxxxxxxxx> wrote: > > * Tony Lindgren <tony@xxxxxxxxxxx> [160516 17:04]: > >> Hi, > >> > >> * Belisko Marek <marek.belisko@xxxxxxxxx> [160513 14:25]: > >> > I'm trying to make wifi working on pandaboard (A2). I'm trying to use > >> > vanilla 4.6-rc7 (omap2plus_defconfig) + device tree. wl21xx seems it's > >> > not probed on sdio due to the missing clk32k. I got some inspiration > >> > from omap5-evm to create simple pwrseq + define clk32k for twl6040. > >> > Not sure if this is right approach but warning about clk32k is gone > >> > with below patch: > >> > [ 2.249786] twl6040 0-004b: clk32k is not handled > >> > [ 2.258575] of_get_named_gpiod_flags: parsed 'ti,audpwron-gpio' > >> > property of node '/ocp/i2c@48070000/twl@4b[0]' - status (0) > >> > [ 2.542816] vwl1271: disabling > >> > >> If the warning goes away and the schematics show the clock coming > >> from clk32kg then it seems your patch is correct :) > >> > >> I just gave a try here on pandaboard es, and I can iw dev wlan0 scan > >> just fine. I can also connect to a network, but then it immediately > >> gets disconnected for some reason. The wl12xx on it used to work > >> just fine, so there seems to be a regression somewhere. > Which u-boot do you use on ES? Maybe it could have some influence. > I suspect that power sequence is not working properly as there is missing > 32kHz clock and then after some time regulator for wifi is disabled as > wifi isn't probed on sdio. > What is really strange that why it works on ES and not on A2. I did > check schematics and wifi part is the same :). Sorry I can't check the u-boot version right now, but yeah that could be the difference, and specifically it could be the 32kHz clock. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
