Re: kern/53356: sunxitwi2 fails at boot

[Jason Thorpe <thorpej%me.com@localhost>]

The following reply was made to PR kern/53356; it has been noted by GNATS.

From: Jason Thorpe <thorpej%me.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: 
Subject: Re: kern/53356: sunxitwi2 fails at boot
Date: Mon, 11 Jun 2018 09:32:24 -0700

 > On Jun 11, 2018, at 8:40 AM, martin%NetBSD.org@localhost wrote:
 > After recent i2c rototill, a CUBIETRUCK when booting a SUNXI kernel
 > fails with an (nearly) endless stream of:
 >=20
 > sunxitwi2: autoconfiguration error: unexpected status 0x20: expect =
 0x18
 > sunxitwi2: autoconfiguration error: unexpected status 0x20: expect =
 0x18
 > sunxitwi2: autoconfiguration error: unexpected status 0x20: expect =
 0x18
 
 #define STAT_AWBT_AR    0x18    /* Address + write bit transd, ack recvd =
 */
 #define STAT_AWBT_ANR   0x20    /* Address + write bit transd, ack not =
 recvd */
 
 So, in other words, it=E2=80=99s waiting for the device to respond, but =
 there=E2=80=99s not one there and it freaks out.  It should not freak =
 out.  Instead, it should return an error after a suitable timeout.
 
 -- thorpej