[Bug 219436] awg Ethernet soft reset timeout on PINE64+ 2GB

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219436

            Bug ID: 219436
           Summary: awg Ethernet soft reset timeout on PINE64+ 2GB
           Product: Base System
           Version: CURRENT
          Hardware: arm64
                OS: Any
            Status: New
          Severity: Affects Some People
          Priority: ---
         Component: arm
          Assignee: freebsd-arm at FreeBSD.org
          Reporter: hlh at restart.be

ON my PINE64+ 2GB I can boot CURRENT r317181M and awg0 was functional.
But after a power failure, the Ethernet is not working.

The Ethernet is not initialized when booting:
FreeBSD 12.0-CURRENT #0 r317181M: Sun May 14 14:01:52 CEST 2017
    root at norquay.restart.bel:/usr/obj/usr/src/sys/NORQUAY arm64
FreeBSD clang version 4.0.0 (tags/RELEASE_400/final 297347) (based on LLVM
4.0.0)

I try to boot with pine64-image-debianmate-310102bsp-2.img and the Ethernet
work
fine.

I define AWG_DEBUG in if_awg.c:

awg0: <Allwinner Gigabit Ethernet> mem 0x1c30000-0x1c300ff,0x1c00030-0x1c00033
irq 21 on simplebus0
awg0: soft reset timed out
awg0:   BASIC_CTL_0          00000000
awg0:   BASIC_CTL_1          08000001
awg0:   INT_STA              40000000
awg0:   INT_EN               00000000
awg0:   TX_CTL_0             00000000
awg0:   TX_CTL_1             00000000
awg0:   TX_FLOW_CTL          00000000
awg0:   TX_DMA_LIST          00000000
awg0:   RX_CTL_0             00000000
awg0:   RX_CTL_1             00000000
awg0:   RX_DMA_LIST          00000000
awg0:   RX_FRM_FLT           00000000
awg0:   RX_HASH_0            00000000
awg0:   RX_HASH_1            00000000
awg0:   MII_CMD              00000000
awg0:   ADDR_HIGH0           0000ffff
awg0:   ADDR_LOW0            ffffffff
awg0:   TX_DMA_STA           0000ffff
awg0:   TX_DMA_CUR_DESC      ffffffff
awg0:   TX_DMA_CUR_BUF       0000ffff
awg0:   RX_DMA_STA           00000000
awg0:   RX_DMA_CUR_DESC      00000000
awg0:   RX_DMA_CUR_BUF       00000000
awg0:   RGMII_STA            00000000
device_attach: awg0 attach returned 60

I find someone with the same problem on on Banana PI M3:

https://lists.freebsd.org/pipermail/freebsd-arm/2016-December/015137.html

Henri

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