From: "H. Nikolaus Schaller" <hns@goldelico.com>
To: Vincenzo Frascino <vincenzo.frascino@arm.com>
Cc: linux-mips@vger.kernel.org, Ralf Baechle <ralf@linux-mips.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Paul Burton <paul.burton@mips.com>,
MIPS Creator CI20 Development
<mips-creator-ci20-dev@googlegroups.com>,
Discussions about the Letux Kernel
<letux-kernel@openphoenux.org>
Subject: Re: MIPS: bug: gettimeofday syscall broken on CI20 board
Date: Thu, 28 Nov 2019 13:16:57 +0100 [thread overview]
Message-ID: <2966D06E-C754-4807-A48E-02D476EF1A24@goldelico.com> (raw)
In-Reply-To: <96b53936-a288-91bc-a14b-a501c5231a03@arm.com>
> Am 28.11.2019 um 13:05 schrieb Vincenzo Frascino <vincenzo.frascino@arm.com>:
>
> Hi Nikolaus,
>
> On 27/11/2019 14:29, H. Nikolaus Schaller wrote:
>> Hi Vincenco,
>>
> [...]
>
>>>
>>> a) with 5.4 kernel
>>>
>
> Could you please report the hash of your top commit?
We have our own config and some compile fixes. But the base
commit is 219d54332a09
>
> [...]
>
>>
>> root@letux:~# ./gettime
>> r = -1 errno=1
>> tv.sec = 1
>> tv.usec = 1
>> rt = 1478193516 errno=1
>> t = 1478193516
>> root@letux:~#
>>
>
> On arm64 the output of your application is what follows:
>
> r = 0 errno=0
> tv.sec = 1574942449
> tv.usec = 348684
> rt = 1574942449 errno=0
> t = 1574942449
>
> Which seems what it is expected.
Indeed. Well, on all other arm architectures I can test (omap3/4/5, imx6, raspi)
it is correct. Only on mips jz4780 I see this.
>
> On a previous email you mentioned what follows:
>
> root@letux:~# cat /proc/cpuinfo
> system type : JZ4780
> machine : img,ci20
> processor : 0
> cpu model : Ingenic JZRISC V4.15 FPU V0.0
> BogoMIPS : 1196.85
> wait instruction : yes
> microsecond timers : no
> tlb_entries : 32
> extra interrupt vector : yes
> hardware watchpoint : yes, count: 1, address/irw mask: [0x0fff]
> isa : mips1 mips2 mips32r1 mips32r2
> ASEs implemented :
> shadow register sets : 1
> kscratch registers : 0
> package : 0
> core : 0
> VCED exceptions : not available
> VCEI exceptions : not available
>
> I am not familiar with JZ4780, which HW clock is it using? (R4K, GIC or NONE)?
Ah, good question. How do I find out? Checking defconfig did not show any
config with R4K or GIC. So it is likely NONE. CONFIG_RTC_DRV_JZ4740=y if that
helps.
BR and thanks,
Nikolaus
next prev parent reply other threads:[~2019-11-28 12:17 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-07 16:21 MIPS: bug: gettimeofday syscall broken on CI20 board? H. Nikolaus Schaller
2019-11-17 13:14 ` MIPS: bug: gettimeofday syscall broken on CI20 board H. Nikolaus Schaller
2019-11-23 7:29 ` H. Nikolaus Schaller
2019-11-26 10:52 ` MIPS: " Vincenzo Frascino
2019-11-27 13:53 ` H. Nikolaus Schaller
2019-11-27 14:29 ` H. Nikolaus Schaller
2019-11-28 12:05 ` Vincenzo Frascino
2019-11-28 12:16 ` H. Nikolaus Schaller [this message]
2019-11-28 14:04 ` Vincenzo Frascino
2019-11-28 15:10 ` H. Nikolaus Schaller
2019-11-28 11:51 ` Vincenzo Frascino
2019-11-28 12:11 ` H. Nikolaus Schaller
2019-11-28 12:21 ` Vincenzo Frascino
2019-11-28 12:33 ` H. Nikolaus Schaller
2019-11-28 13:29 ` Maarten ter Huurne
2019-11-28 13:48 ` H. Nikolaus Schaller
2019-11-28 14:01 ` Vincenzo Frascino
2019-11-28 15:42 ` H. Nikolaus Schaller
2019-11-28 15:07 ` Thomas Bogendoerfer
2019-11-28 15:41 ` H. Nikolaus Schaller
2019-11-28 15:46 ` Vincenzo Frascino
2019-11-28 16:47 ` H. Nikolaus Schaller
2019-11-29 8:57 ` Vincenzo Frascino
2019-11-29 10:53 ` Vincenzo Frascino
2019-11-29 11:51 ` H. Nikolaus Schaller
2019-12-01 3:08 ` [PATCH] Mips32 gettimeofday fix kbuild test robot
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