Hello, On Tue, May 17, 2016 at 09:37:11PM -0700, Guenter Roeck wrote: > [ 9.366256] libphy: ethoc-mdio: probed > [ 9.367389] (null): could not attach to PHY > [ 9.368555] (null): failed to probe MDIO bus > [ 9.371540] Unable to handle kernel paging request at virtual address 0000001c > [ 9.371540] pc = d0320926, ra = 903209d1 > [ 9.375358] Oops: sig: 11 [#1] > [ 9.376081] PREEMPT > [ 9.377080] CPU: 0 PID: 1 Comm: swapper Not tainted 4.6.0-next-20160517 #1 > [ 9.378397] task: d7c2c000 ti: d7c30000 task.ti: d7c30000 > [ 9.379394] a00: 903209d1 d7c31bd0 d7fb5810 00000001 00000000 00000000 d7f45c00 d7c31bd0 > [ 9.382298] a08: 00000000 00000000 00000000 00000000 00060100 d04b0c10 d7f45dfc d7c31bb0 > [ 9.385732] pc: d0320926, ps: 00060110, depc: 00000018, excvaddr: 0000001c > [ 9.387061] lbeg: d0322e35, lend: d0322e57 lcount: 00000000, sar: 00000011 > [ 9.388173] > Stack: d7c31be0 00060700 d7f45c00 d7c31bd0 9021d509 d7c31c30 d7f45c00 00000000 > d0485dcc d0485dcc d7fb5810 d7c2c000 00000000 d7c31c30 d7f45c00 d025befc > d0485dcc d7c30000 d7f45c34 d7c31bf0 9021c985 d7c31c50 d7f45c00 d7f45c34 > [ 9.396652] Call Trace: > [ 9.397469] [<d021d4d9>] __device_release_driver+0x7d/0x98 > [ 9.398869] [<d021d509>] device_release_driver+0x15/0x20 > [ 9.400247] [<d021c985>] bus_remove_device+0xc1/0xd4 > [ 9.401569] [<d021a935>] device_del+0x109/0x15c > [ 9.402794] [<d025c3f9>] phy_mdio_device_remove+0xd/0x18 > [ 9.404124] [<d025d264>] mdiobus_unregister+0x40/0x5c > [ 9.405444] [<d025ff44>] ethoc_probe+0x534/0x5b8 > [ 9.406742] [<d021e2e0>] platform_drv_probe+0x28/0x48 > [ 9.408122] [<d021d1e5>] driver_probe_device+0x101/0x234 > [ 9.409499] [<d021d395>] __driver_attach+0x7d/0x98 > [ 9.410809] [<d021bd80>] bus_for_each_dev+0x30/0x5c > [ 9.412104] [<d021cdf0>] driver_attach+0x14/0x18 > [ 9.413385] [<d021ca61>] bus_add_driver+0xc9/0x198 > [ 9.414686] [<d021d7d4>] driver_register+0x70/0xa0 > [ 9.416001] [<d021e2b4>] __platform_driver_register+0x24/0x28 > [ 9.417463] [<d04a1d34>] ethoc_driver_init+0x10/0x14 > [ 9.418824] [<d00032c8>] do_one_initcall+0x80/0x1ac > [ 9.420083] [<d049386d>] kernel_init_freeable+0x131/0x198 > [ 9.421504] [<d03236e8>] kernel_init+0xc/0xb0 > [ 9.422693] [<d000482c>] ret_from_kernel_thread+0x8/0xc Guenter, can you please test if the following patch fixes your setup: diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 307f72a0f2e2..efa85fb31574 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -1573,14 +1573,14 @@ static int phy_probe(struct device *dev) int err = 0; struct gpio_descs *reset_gpios; - phydev->drv = phydrv; - /* take phy out of reset */ reset_gpios = devm_gpiod_get_array_optional(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(reset_gpios)) return PTR_ERR(reset_gpios); + phydev->drv = phydrv; + /* Disable the interrupt if the PHY doesn't support it * but the interrupt is still a valid one */ This doesn't make your ethernet work, but at least the driver should fail in a clean way. Together with enabling GPIOLIB this should put ethernet in a working state again. Best regards Uwe -- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | http://www.pengutronix.de/ | -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
