Re: macb: probe of 10090000.ethernet failed with error -110
From: Atish Patra <hidden>
Date: 2018-11-28 18:15:31
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linux-riscv, lkml
On 11/28/18 2:11 AM, Andreas Schwab wrote:
The PHY probing of the macb driver appears to be rather unreliable. Most of the time it doesn't work the first time, I have to reload the module several times to let it succeed. [ 40.530000] macb: GEM doesn't support hardware ptp. [ 40.530000] libphy: MACB_mii_bus: probed [ 41.450000] macb 10090000.ethernet (unnamed net_device) (uninitialized): Could not attach to PHY [ 41.510000] macb: probe of 10090000.ethernet failed with error -110 [ 1354.400000] macb: GEM doesn't support hardware ptp. [ 1354.410000] libphy: MACB_mii_bus: probed [ 1355.260000] macb 10090000.ethernet (unnamed net_device) (uninitialized): Could not attach to PHY [ 1355.300000] macb: probe of 10090000.ethernet failed with error -110 [ 1358.100000] macb: GEM doesn't support hardware ptp. [ 1358.110000] libphy: MACB_mii_bus: probed [ 1358.310000] Microsemi VSC8541 SyncE 10090000.ethernet-ffffffff:00: attached PHY driver [Microsemi VSC8541 SyncE] (mii_bus:phy_addr=10090000.ethernet-ffffffff:00, irq=POLL) [ 1358.320000] macb 10090000.ethernet eth0: Cadence GEM rev 0x10070109 at 0x10090000 irq 12 (70:b3:d5:92:f1:07) This is 4.20-rc4 on a HiFive-U. Andreas.
Here is my previous analysis on the issue. http://lists.infradead.org/pipermail/linux-riscv/2018-September/001503.html Not sure if you have tried the hack already. But here it is anyways. https://github.com/atishp04/riscv-linux/commit/aa230e7dc2ab01db5b630f427e57297ffc25c884 Regards, Atish