Date: Tue, 30 Jun 2020 16:01:41 +0300 From: Daniel Braniss <danny@cs.huji.ac.il> To: "freebsd-arm@freebsd.org" <arm@freebsd.org> Subject: allwinner/i2c interrupt storm detected Message-ID: <10ACCB56-E18D-4102-B4E2-094157854AB7@cs.huji.ac.il>
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Hi,
after a long time I decided to try and upgrade to stable 12.1 r362793 =
since I saw some changes where done=20
with respect to the DTS and twsi.c,=20
if nothing is connected to the i2c, i2c -s just hangs,
if something is connected this is what i get on the console after typing =
=E2=80=98i2c -s=E2=80=99
Hardware may not support START/STOP scanning; trinterrupt storm detected =
on "gic0,s6:"; throttling interrupt source
ying less-reliable read method.
interrupt storm detected on "gic0,s6:"; throttling interrupt source
interrupt storm detected on "gic0,s6:"; throttling interrupt source
=E2=80=A6
and
neo-04> vmstat -i
interrupt total rate
gic0,p13:-ic_timer0 16052 164
gic0,s0: uart2 318 3
gic0,s6: iichb0 13034 133
gic0,s60: aw_mmc0 1293 13
gic0,s82: awg0 334 3
gic0,s120: pmu0 49725 509
cpu0:rendezvous 18 0
cpu1:rendezvous 50 1
cpu2:rendezvous 51 1
cpu3:rendezvous 40 0
cpu0:preempt 2691 28
cpu1:preempt 3165 32
cpu2:preempt 2778 28
cpu3:preempt 2986 31
cpu0:hardclock 15 0
Total 92550 946
the hardware is an NanoPi Neo
---<<BOOT>>---
KDB: debugger backends: ddb
KDB: current backend: ddb
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FreeBSD 12.1-STABLE #0 r362793M: Tue Jun 30 11:39:11 IDT 2020
=
danny@nrnd:/home/obj/nrnd/arm/neo/vol/rnd/stable/12/arm.armv7/sys/AWGEN =
arm
FreeBSD clang version 10.0.0 (git@github.com =
<mailto:git@github.com>:llvm/llvm-project.git =
llvmorg-10.0.0-0-gd32170dbd5b)
VT: init without driver.
No PSCI/SMCCC call function found
CPU: ARM Cortex-A7 r0p5 (ECO: 0x00000000)
=E2=80=A6
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