From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 Date: Mon, 2 Feb 2015 23:48:09 +1100 Message-ID: From: Shane Morris To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=001a1133b176d7c995050e1a5de1 Subject: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f332216-ead9-11e9-9d60-3106f5b1d025 --001a1133b176d7c995050e1a5de1 Content-Type: text/plain; charset=UTF-8 Just saw this come up on my Facebook feed: http://www.raspberrypi.org/raspberry-pi-2-on-sale/ Noted it *should* be backwards compatible with previous software. Does a 9fan wish to vet the 9pi release against this new hardware? I'd love to give it a go, but I'm not in a position time wise, being made one of the directors of two companies just recently... --001a1133b176d7c995050e1a5de1 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Just saw this come up on my Facebook feed:

<= div>http://w= ww.raspberrypi.org/raspberry-pi-2-on-sale/

Noted it should=C2=A0be backwards compatible with previous software= . Does a 9fan wish to vet the 9pi release against this new hardware? I'= d love to give it a go, but I'm not in a position time wise, being made= one of the directors of two companies just recently... --001a1133b176d7c995050e1a5de1-- From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <408829c228f71cb5618e805b29547bd4@hamnavoe.com> To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Mon, 2 Feb 2015 13:14:52 +0000 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f36fc2e-ead9-11e9-9d60-3106f5b1d025 > Noted it *should* be backwards compatible with previous software. Does a > 9fan wish to vet the 9pi release against this new hardware? Compatible with user level software, yes. But it will need a new kernel, because it has 4 x cortex-a7 cores compared with 1 x arm11 on the older pi. From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <54CF7EA1.2080708@gmail.com> Date: Mon, 2 Feb 2015 07:41:53 -0600 From: Sean Hinchee User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> References: <408829c228f71cb5618e805b29547bd4@hamnavoe.com> In-Reply-To: <408829c228f71cb5618e805b29547bd4@hamnavoe.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f3ac3b8-ead9-11e9-9d60-3106f5b1d025 The difference between Armv6 and Armv7 isn't it? On 2/2/15 7:14 AM, Richard Miller wrote: >> Noted it *should* be backwards compatible with previous software. Does a >> 9fan wish to vet the 9pi release against this new hardware? > Compatible with user level software, yes. But it will need a new kernel, > because it has 4 x cortex-a7 cores compared with 1 x arm11 on the older pi. > > From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 References: <408829c228f71cb5618e805b29547bd4@hamnavoe.com> From: Skip Tavakkolian Date: Mon, 2 Feb 2015 20:54:02 +0000 Message-ID: To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=001a1139b3fe833ca8050e212723 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f471438-ead9-11e9-9d60-3106f5b1d025 --001a1139b3fe833ca8050e212723 Content-Type: text/plain; charset=UTF-8 hardkernel's odroid-c1 is similar and slightly better performance for the same price; any sense which port might be easier? http://www.hardkernel.com/main/products/prdt_info.php?g_code=G141578608433 On Mon Feb 02 2015 at 5:15:34 AM Richard Miller <9fans@hamnavoe.com> wrote: > > Noted it *should* be backwards compatible with previous software. Does a > > 9fan wish to vet the 9pi release against this new hardware? > > Compatible with user level software, yes. But it will need a new kernel, > because it has 4 x cortex-a7 cores compared with 1 x arm11 on the older pi. > > > --001a1139b3fe833ca8050e212723 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable hardkernel's odroid-c1 is similar and slightly better performance for t= he same price; any sense which port might be easier?



On= Mon Feb 02 2015 at 5:15:34 AM Richard Miller <9fans@hamnavoe.com> wrote:
> Noted it *should* be backwards compatible with previous software= . Does a
> 9fan wish to vet the 9pi release against this new hardware?

Compatible with user level software, yes. But it will need a new kernel, because it has 4 x cortex-a7 cores compared with 1 x arm11 on the older pi.=


--001a1139b3fe833ca8050e212723-- From mboxrd@z Thu Jan 1 00:00:00 1970 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-reply-to: Your message of "Mon, 02 Feb 2015 20:54:02 GMT." References: <408829c228f71cb5618e805b29547bd4@hamnavoe.com> Date: Mon, 2 Feb 2015 13:24:54 -0800 From: Bakul Shah Message-Id: <20150202212454.E6EBFB827@mail.bitblocks.com> Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f4b582c-ead9-11e9-9d60-3106f5b1d025 On Mon, 02 Feb 2015 20:54:02 GMT Skip Tavakkolian wrote: > > hardkernel's odroid-c1 is similar and slightly better performance for the > same price; any sense which port might be easier? Odroid-c1 is Cortex-A5 while Pi2 is Cortex-A7 so Pi2 is more performant (but has worse ethernet and horrible usb). Port to pi2 should be easier as the periphs are the same as in Pi1; only their IO maps have changed a bit. > http://www.hardkernel.com/main/products/prdt_info.php?g_code=G141578608433 From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <20150202212454.E6EBFB827@mail.bitblocks.com> References: <408829c228f71cb5618e805b29547bd4@hamnavoe.com> <20150202212454.E6EBFB827@mail.bitblocks.com> Date: Mon, 2 Feb 2015 13:37:55 -0800 Message-ID: From: Joe Bowers To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=001a11397ec070a34c050e21c480 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f4fada0-ead9-11e9-9d60-3106f5b1d025 --001a11397ec070a34c050e21c480 Content-Type: text/plain; charset=UTF-8 Does anybody know where to look for documentation on the changes, or general documentation for the bcm2836? On Mon, Feb 2, 2015 at 1:24 PM, Bakul Shah wrote: > On Mon, 02 Feb 2015 20:54:02 GMT Skip Tavakkolian < > skip.tavakkolian@gmail.com> wrote: > > > > hardkernel's odroid-c1 is similar and slightly better performance for the > > same price; any sense which port might be easier? > > Odroid-c1 is Cortex-A5 while Pi2 is Cortex-A7 so Pi2 is more > performant (but has worse ethernet and horrible usb). Port to > pi2 should be easier as the periphs are the same as in Pi1; > only their IO maps have changed a bit. > > > > http://www.hardkernel.com/main/products/prdt_info.php?g_code=G141578608433 > > --001a11397ec070a34c050e21c480 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Does anybody know where to look for documentation on the c= hanges, or general documentation for the bcm2836?

On Mon, Feb 2, 2015 at 1:24 PM, Bakul= Shah <bakul@bitblocks.com> wrote:
On Mon, 02 Feb 2015 20:54:02 GMT Skip Tavakk= olian <skip.tavakkolian@gm= ail.com> wrote:
>
> hardkernel's odroid-c1 is similar and slightly better performance = for the
> same price; any sense which port might be easier?

Odroid-c1 is Cortex-A5 while Pi2 is Cortex-A7 so Pi2 is more
performant (but has worse ethernet and horrible usb). Port to
pi2 should be easier as the periphs are the same as in Pi1;
only their IO maps have changed a bit.

> http://www.hardkernel.com/main/product= s/prdt_info.php?g_code=3DG141578608433


--001a11397ec070a34c050e21c480-- From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <17309372fd5acec3d242a1242d38b163@quintile.net> From: "Steve Simon" Date: Mon, 2 Feb 2015 21:38:25 +0000 To: 9fans@9fans.net In-Reply-To: <20150202212454.E6EBFB827@mail.bitblocks.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f53ae8c-ead9-11e9-9d60-3106f5b1d025 Re: Ether speed I was just asking in case there was a perfmormance improvment to be had for free. To be honest, the ether performance is not really a limiting feature of the pi for me, if fact the cpu and ether are a fair match for each other. A significantly faster cpu would upset this balance IMHO. This is just gut feelings from using my Pi quite a bit as a terminal and as an internet radio. I do wonder if they have got it wrong with the Pi-2 and should have gone with Gig Ether - Time will tell. The Odroid-c1 looks nice but so does the Beagle-bone black and the Hummingboard, there seem to be quite a few these days. -Steve From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <54CFF82C.3000403@gmail.com> Date: Mon, 2 Feb 2015 16:20:28 -0600 From: Sean Hinchee User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> References: <408829c228f71cb5618e805b29547bd4@hamnavoe.com> <20150202212454.E6EBFB827@mail.bitblocks.com> In-Reply-To: Content-Type: multipart/alternative; boundary="------------080908030409010908000707" Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f584ff0-ead9-11e9-9d60-3106f5b1d025 This is a multi-part message in MIME format. --------------080908030409010908000707 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Some documentation can be found here: http://elinux.org/RPi_Documentation#Raspberry_Pi_Processor_Broadcom_System-On-Chip: On 2/2/15 3:37 PM, Joe Bowers wrote: > Does anybody know where to look for documentation on the changes, or > general documentation for the bcm2836? > > On Mon, Feb 2, 2015 at 1:24 PM, Bakul Shah > wrote: > > On Mon, 02 Feb 2015 20:54:02 GMT Skip Tavakkolian > > > wrote: > > > > hardkernel's odroid-c1 is similar and slightly better > performance for the > > same price; any sense which port might be easier? > > Odroid-c1 is Cortex-A5 while Pi2 is Cortex-A7 so Pi2 is more > performant (but has worse ethernet and horrible usb). Port to > pi2 should be easier as the periphs are the same as in Pi1; > only their IO maps have changed a bit. > > > > http://www.hardkernel.com/main/products/prdt_info.php?g_code=G141578608433 > > --------------080908030409010908000707 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit Some documentation can be found here: http://elinux.org/RPi_Documentation#Raspberry_Pi_Processor_Broadcom_System-On-Chip:


On 2/2/15 3:37 PM, Joe Bowers wrote:
Does anybody know where to look for documentation on the changes, or general documentation for the bcm2836?

On Mon, Feb 2, 2015 at 1:24 PM, Bakul Shah <bakul@bitblocks.com> wrote:
On Mon, 02 Feb 2015 20:54:02 GMT Skip Tavakkolian <skip.tavakkolian@gmail.com> wrote:
>
> hardkernel's odroid-c1 is similar and slightly better performance for the
> same price; any sense which port might be easier?

Odroid-c1 is Cortex-A5 while Pi2 is Cortex-A7 so Pi2 is more
performant (but has worse ethernet and horrible usb). Port to
pi2 should be easier as the periphs are the same as in Pi1;
only their IO maps have changed a bit.

> http://www.hardkernel.com/main/products/prdt_info.php?g_code=G141578608433



--------------080908030409010908000707-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Mon, 2 Feb 2015 19:52:08 -0800 To: 9fans@9fans.net Message-ID: In-Reply-To: <20150202212454.E6EBFB827@mail.bitblocks.com> References: <408829c228f71cb5618e805b29547bd4@hamnavoe.com> <20150202212454.E6EBFB827@mail.bitblocks.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f5eeaea-ead9-11e9-9d60-3106f5b1d025 On Mon Feb 2 13:20:08 PST 2015, bakul@bitblocks.com wrote: > On Mon, 02 Feb 2015 20:54:02 GMT Skip Tavakkolian wrote: > > > > hardkernel's odroid-c1 is similar and slightly better performance for the > > same price; any sense which port might be easier? > > Odroid-c1 is Cortex-A5 while Pi2 is Cortex-A7 so Pi2 is more > performant (but has worse ethernet and horrible usb). Port to > pi2 should be easier as the periphs are the same as in Pi1; > only their IO maps have changed a bit. hmm. the arch is just part of the story. the odroid is 1500 MHz vs the pi2's 900 MHz, and that's ddr3 vs ddr2. so it's not quite all stacked in one direction. - erik From mboxrd@z Thu Jan 1 00:00:00 1970 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-reply-to: Your message of "Mon, 02 Feb 2015 19:52:08 PST." References: <408829c228f71cb5618e805b29547bd4@hamnavoe.com> <20150202212454.E6EBFB827@mail.bitblocks.com> Date: Mon, 2 Feb 2015 20:41:26 -0800 From: Bakul Shah Message-Id: <20150203044126.227F5B82A@mail.bitblocks.com> Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f630526-ead9-11e9-9d60-3106f5b1d025 On Mon, 02 Feb 2015 19:52:08 PST erik quanstrom wrote: > On Mon Feb 2 13:20:08 PST 2015, bakul@bitblocks.com wrote: > > On Mon, 02 Feb 2015 20:54:02 GMT Skip Tavakkolian om> wrote: > > > > > > hardkernel's odroid-c1 is similar and slightly better performance for the > > > same price; any sense which port might be easier? > > > > Odroid-c1 is Cortex-A5 while Pi2 is Cortex-A7 so Pi2 is more > > performant (but has worse ethernet and horrible usb). Port to > > pi2 should be easier as the periphs are the same as in Pi1; > > only their IO maps have changed a bit. > > hmm. the arch is just part of the story. the odroid is 1500 MHz vs > the pi2's 900 MHz, and that's ddr3 vs ddr2. so it's not quite all > stacked in one direction. Indeed. Feature comparison here: http://www.cnx-software.com/2015/02/02/raspberry-pi-2-odroid-c1-development-boards-comparison/ Will post some benchmarks comparing the two (under linux) once I get a pi2, hopefully by this Wednesday. [How did they miss calling it 2pi or tau?] The way I see it, the RPi Foundation knew they had painted themselves in a corner with the 2835. Any new design would've been hugely disruptive. By just replacing the processor core and leaving rest of the cruft + GPU exactly as before they managed to get the 2836 out in a relatively short time and all the hardware addon will continue to work. Now that they've escaped, I expect to see more designs. From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <17309372fd5acec3d242a1242d38b163@quintile.net> References: <20150202212454.E6EBFB827@mail.bitblocks.com> <17309372fd5acec3d242a1242d38b163@quintile.net> Date: Tue, 3 Feb 2015 12:32:32 +0100 Message-ID: From: hiro <23hiro@gmail.com> To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f7003ac-ead9-11e9-9d60-3106f5b1d025 > To be honest, the ether performance is not really a limiting feature of the > pi for me, if fact the cpu and ether are a fair match for each other. This might be because the ethernet adapter uses USB which is taxing the CPU a lot. From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <20150202212454.E6EBFB827@mail.bitblocks.com> <17309372fd5acec3d242a1242d38b163@quintile.net> Date: Tue, 3 Feb 2015 11:40:12 +0000 Message-ID: From: Peter Hull To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f7b32c2-ead9-11e9-9d60-3106f5b1d025 I struggle a bit with ARM version numbers ... is the Pi2 the same architecture as Beaglebone Black - so they could share kernel source (I know peripherals would be different) Pete From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <17309372fd5acec3d242a1242d38b163@quintile.net> References: <20150202212454.E6EBFB827@mail.bitblocks.com> <17309372fd5acec3d242a1242d38b163@quintile.net> Date: Tue, 3 Feb 2015 12:43:32 +0100 Message-ID: From: hiro <23hiro@gmail.com> To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f84236e-ead9-11e9-9d60-3106f5b1d025 > I do wonder if they have got it wrong with the Pi-2 and should have gone > with > Gig Ether - Time will tell. They did not, one of the most common usages of the pi is to decode h.264 video, which works just fine over the slow ethernet and even via usb wireless adapters. Fine means the videos break more often (cant be played due to wrong, too high encoding) than the network (adapter) in use. The main advantage of the Pi-2 for the masses will be that they can finally decode DTS on the pi without having to reencode and remux the audio on an intel beforehand. Power usage is also just as low as before (here in europe we have to pay for electricity). kirkwood had gigabit ethernet way before the rpi even existed and I'm regularly using multiples of 100Mbit with samba on one, it's super stable *and* faster which is why I would never pick the rpi for a NAS. otoh this device doesn't even have video out. From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <20150202212454.E6EBFB827@mail.bitblocks.com> <17309372fd5acec3d242a1242d38b163@quintile.net> Date: Tue, 3 Feb 2015 12:46:47 +0100 Message-ID: From: hiro <23hiro@gmail.com> To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f88aeac-ead9-11e9-9d60-3106f5b1d025 btw if you really are that bored: please port 9front to one of those wifi SD cards. From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <20150202212454.E6EBFB827@mail.bitblocks.com> <17309372fd5acec3d242a1242d38b163@quintile.net> Date: Tue, 3 Feb 2015 14:37:28 +0200 Message-ID: From: Costin Chirvasuta To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f8cf2a0-ead9-11e9-9d60-3106f5b1d025 > kirkwood had gigabit ethernet way before the rpi even existed and I'm > regularly using multiples of 100Mbit with samba on one, it's super > stable *and* faster which is why I would never pick the rpi for a NAS. > otoh this device doesn't even have video out. What kirkwood device are you using for a NAS? From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <20150202212454.E6EBFB827@mail.bitblocks.com> <17309372fd5acec3d242a1242d38b163@quintile.net> Date: Tue, 3 Feb 2015 15:23:18 +0100 Message-ID: From: hiro <23hiro@gmail.com> To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 3f9aadf0-ead9-11e9-9d60-3106f5b1d025 Dockstar and only via USB 2.0 Nowadays i'd buy a pogoplug, they were still available on amazon or ebay for 10$ last time I looked. I'm also using the dockstar for routing. The gigabit is stable and gives enough headroom for my pity 10Mbit uplink, whereas a rpi would break down bec. of USB hardware (or software?) failures. On 2/3/15, Costin Chirvasuta wrote: >> kirkwood had gigabit ethernet way before the rpi even existed and I'm >> regularly using multiples of 100Mbit with samba on one, it's super >> stable *and* faster which is why I would never pick the rpi for a NAS. >> otoh this device doesn't even have video out. > > What kirkwood device are you using for a NAS? > > From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Thu, 5 Feb 2015 09:17:44 +0100 From: Dante To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-Reply-To: References: <20150202212454.E6EBFB827@mail.bitblocks.com> <17309372fd5acec3d242a1242d38b163@quintile.net> Message-ID: <00b8773f31783e00bac62ce041e4558d@posteo.de> User-Agent: Posteo Webmail Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 40cd025e-ead9-11e9-9d60-3106f5b1d025 Hi all, Does Plan9 have support for multi-core processors? Is explicit support needed at all (like in SMP)? D From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <00b8773f31783e00bac62ce041e4558d@posteo.de> References: <20150202212454.E6EBFB827@mail.bitblocks.com> <17309372fd5acec3d242a1242d38b163@quintile.net> <00b8773f31783e00bac62ce041e4558d@posteo.de> Date: Thu, 5 Feb 2015 21:09:44 +1100 Message-ID: From: Shane Morris To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=047d7b3a8588c7babf050e548004 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 40f5cf5e-ead9-11e9-9d60-3106f5b1d025 --047d7b3a8588c7babf050e548004 Content-Type: text/plain; charset=UTF-8 Doesn't Plan 9 run on the dual core ARM Tegra2? On Thu, Feb 5, 2015 at 7:17 PM, Dante wrote: > Hi all, > > Does Plan9 have support for multi-core processors? > Is explicit support needed at all (like in SMP)? > > D > > --047d7b3a8588c7babf050e548004 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Doesn't Plan 9 run on the dual core ARM Tegra2?
<= div class=3D"gmail_extra">
On Thu, Feb 5, 201= 5 at 7:17 PM, Dante <subscriptions@posteo.eu> wrote:
Hi all,

Does Plan9 have support for multi-core processors?
Is explicit support needed at all (like in SMP)?

D


--047d7b3a8588c7babf050e548004-- From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <20150202212454.E6EBFB827@mail.bitblocks.com> <17309372fd5acec3d242a1242d38b163@quintile.net> <00b8773f31783e00bac62ce041e4558d@posteo.de> Date: Thu, 5 Feb 2015 11:19:43 +0100 Message-ID: From: David du Colombier <0intro@gmail.com> To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 40fa61e0-ead9-11e9-9d60-3106f5b1d025 As far I know, only the pc, teg2 and k10 kernels support multiprocessing. -- David du Colombier From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <46387470657debf96fb9fd2e878c90c0@felloff.net> Date: Thu, 5 Feb 2015 15:41:09 +0100 From: cinap_lenrek@felloff.net To: 9fans@9fans.net In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 411cdf68-ead9-11e9-9d60-3106f5b1d025 and pc64 and zynq :-) -- cinap From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <46387470657debf96fb9fd2e878c90c0@felloff.net> References: <46387470657debf96fb9fd2e878c90c0@felloff.net> Date: Thu, 5 Feb 2015 15:46:42 +0100 Message-ID: From: Siarhei Zirukin To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4121eae4-ead9-11e9-9d60-3106f5b1d025 He didn't ask about 9front. On 2/5/15, cinap_lenrek@felloff.net wrote: > and pc64 and zynq :-) > > -- > cinap > > From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <428ae0abf291d814aa6e783ab680e142@quintile.net> From: "Steve Simon" Date: Thu, 5 Feb 2015 15:38:40 +0000 To: 9fans@9fans.net In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41260e26-ead9-11e9-9d60-3106f5b1d025 I am fairly sure there was multicore support in the MIPS kernels for the big challange machines they had at the labs. -Steve From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <46387470657debf96fb9fd2e878c90c0@felloff.net> Date: Thu, 5 Feb 2015 09:40:27 -0600 Message-ID: From: Steven Stallion To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=001a11c302de889f9f050e591f9f Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 412af9ae-ead9-11e9-9d60-3106f5b1d025 --001a11c302de889f9f050e591f9f Content-Type: text/plain; charset=UTF-8 On Thu, Feb 5, 2015 at 8:46 AM, Siarhei Zirukin wrote: > He didn't ask about 9front. > What's 9front? (Apologies, couldn't resist...) --001a11c302de889f9f050e591f9f Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
On T= hu, Feb 5, 2015 at 8:46 AM, Siarhei Zirukin <ftrvxmtrx@gmail.com&g= t; wrote:
He didn't ask about = 9front.

What's 9front?
(Apologies, couldn't resist...)
--001a11c302de889f9f050e591f9f-- From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 5 Feb 2015 15:48:48 +0000 Message-ID: <20150205154848.Horde.H1xeKrknHc2TotpzDJm1UA2@ssl.eumx.net> From: Kurt H Maier To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> References: <46387470657debf96fb9fd2e878c90c0@felloff.net> In-Reply-To: User-Agent: Internet Messaging Program (IMP) H5 (6.2.2) Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes MIME-Version: 1.0 Content-Disposition: inline Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 412f3db6-ead9-11e9-9d60-3106f5b1d025 Quoting Steven Stallion : > What's 9front? Medium- to low-quality mushroom cloud computing project designed to vandalize treasured artwork. Every interaction I've had with the dev team has been awful. khm From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <428ae0abf291d814aa6e783ab680e142@quintile.net> References: <428ae0abf291d814aa6e783ab680e142@quintile.net> Date: Thu, 5 Feb 2015 17:07:24 +0100 Message-ID: From: David du Colombier <0intro@gmail.com> To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 413c92ea-ead9-11e9-9d60-3106f5b1d025 > I am fairly sure there was multicore support in the MIPS > kernels for the big challange machines they had at the labs. I was only listing the kernels still present in Plan 9. The vt5 and ch kernels (and probably others) had multiprocessing support as well. -- David du Colombier From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Thu, 5 Feb 2015 17:47:16 +0100 From: Dante To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-Reply-To: References: <46387470657debf96fb9fd2e878c90c0@felloff.net> Message-ID: <36b3147aaff1d99259cb5992ee2dfc02@posteo.de> User-Agent: Posteo Webmail Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 418bda30-ead9-11e9-9d60-3106f5b1d025 Don't be evil :-) On 05.02.2015 16:40, Steven Stallion wrote: > On Thu, Feb 5, 2015 at 8:46 AM, Siarhei Zirukin > wrote: > >> He didn't ask about 9front. > > What's 9front? > > (Apologies, couldn't resist...) From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <2d2a214ee9f7606cafa6b61b36686105@felloff.net> Date: Thu, 5 Feb 2015 18:32:52 +0100 From: cinap_lenrek@felloff.net To: 9fans@9fans.net In-Reply-To: <428ae0abf291d814aa6e783ab680e142@quintile.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41a727f4-ead9-11e9-9d60-3106f5b1d025 labs loaddevdescr() reads 255+18 bytes device descriptor instead of 18 bytes for some reason. try changeing the following line in /sys/src/cmd/usb/lib/dev.c in loaddevdescr(): uchar buf[Ddevlen+255]; to: uchar buf[Ddevlen]; and see if you still get the short descriptor warning. [REDACTED] did this change in [REDACTED] fixing problem with some usb ethernet device. -- cinap From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <36b3147aaff1d99259cb5992ee2dfc02@posteo.de> References: <46387470657debf96fb9fd2e878c90c0@felloff.net> <36b3147aaff1d99259cb5992ee2dfc02@posteo.de> Date: Thu, 5 Feb 2015 17:34:04 +0000 Message-ID: From: Charles Forsyth To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=047d7bf0c39adf76c5050e5ab555 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41ac7236-ead9-11e9-9d60-3106f5b1d025 --047d7bf0c39adf76c5050e5ab555 Content-Type: text/plain; charset=UTF-8 Basically, Plan 9 (kernel and applications) was designed and written for multiprocessors, and the kernel is written with pre-emptive concurrency in mind (rather than, say, retrofitting it all). That extends to the drivers and most platform-specific kernel code (except where someone slipped up, which is rare). Even on things that are currently uniprocessor, the discipline is to write the mutual exclusion code as required. Cache control is less well-developed, since most platforms so far have offered some adequate form of coherency, but explicit cache flushing and invalidation is missing from some x86 drivers, because the architecture did the work, so that DOS would run. In practice, most embedded platforms have had custom SoC devices, or different devices from x86 at any rate, so the cache flushing was included when a new driver was written (once we understood the problem). Unfortunately, it was done using different primitives, or at least primitive names, for different architectures. --047d7bf0c39adf76c5050e5ab555 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Basically, Plan 9 (kernel and applications) was designed a= nd written for multiprocessors,
and the kernel is written with pre-empt= ive concurrency in mind (rather than, say, retrofitting
it all). = That extends to the drivers and most platform-specific kernel code (except = where someone slipped up,
which is rare). Even on things that are= currently uniprocessor, the discipline is to write the
mutual ex= clusion code as required. Cache control is less well-developed,
s= ince most platforms so far have offered some adequate form of coherency, bu= t
explicit cache flushing and invalidation is missing from so= me x86 drivers, because
the architecture did the work, so that DO= S would run. In practice, most embedded platforms
have had cu= stom SoC devices, or different devices from x86 at any rate,
so t= he cache flushing was included when a new driver
was written (onc= e we understood the problem). Unfortunately, it was done
using di= fferent primitives, or at least primitive names, for different architecture= s.

--047d7bf0c39adf76c5050e5ab555-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Thu, 5 Feb 2015 11:15:44 -0800 To: 9fans@9fans.net Message-ID: <36e09ac7293b6debf2af3b1436c56003@brasstown.quanstro.net> In-Reply-To: <2d2a214ee9f7606cafa6b61b36686105@felloff.net> References: <2d2a214ee9f7606cafa6b61b36686105@felloff.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41bbb304-ead9-11e9-9d60-3106f5b1d025 On Thu Feb 5 09:28:09 PST 2015, cinap_lenrek@felloff.net wrote: > labs loaddevdescr() reads 255+18 bytes device descriptor > instead of 18 bytes for some reason. try changeing the > following line in /sys/src/cmd/usb/lib/dev.c in loaddevdescr(): > > uchar buf[Ddevlen+255]; > > to: > > uchar buf[Ddevlen]; > > and see if you still get the short descriptor warning. > > [REDACTED] did this change in [REDACTED] fixing problem with some > usb ethernet device. that sounds about right. but there are many other gaffes like this. - erik From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <36e09ac7293b6debf2af3b1436c56003@brasstown.quanstro.net> References: <2d2a214ee9f7606cafa6b61b36686105@felloff.net> <36e09ac7293b6debf2af3b1436c56003@brasstown.quanstro.net> Date: Fri, 6 Feb 2015 06:22:59 +1100 Message-ID: From: Shane Morris To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=089e014940ae65d866050e5c3ba3 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41c05666-ead9-11e9-9d60-3106f5b1d025 --089e014940ae65d866050e5c3ba3 Content-Type: text/plain; charset=UTF-8 Did someone say there was a Zynq kernel? On Fri, Feb 6, 2015 at 6:15 AM, erik quanstrom wrote: > On Thu Feb 5 09:28:09 PST 2015, cinap_lenrek@felloff.net wrote: > > labs loaddevdescr() reads 255+18 bytes device descriptor > > instead of 18 bytes for some reason. try changeing the > > following line in /sys/src/cmd/usb/lib/dev.c in loaddevdescr(): > > > > uchar buf[Ddevlen+255]; > > > > to: > > > > uchar buf[Ddevlen]; > > > > and see if you still get the short descriptor warning. > > > > [REDACTED] did this change in [REDACTED] fixing problem with some > > usb ethernet device. > > that sounds about right. but there are many other gaffes like this. > > - erik > > --089e014940ae65d866050e5c3ba3 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Did someone say there was a Zynq kernel?

On Fri, Feb 6, 2015 at 6:15= AM, erik quanstrom <quanstro@quanstro.net> wrote:
On Thu= Feb=C2=A0 5 09:28:09 PST 2015, cinap_lenrek@felloff.net wrote:
> labs loaddevdescr() reads 255+18 bytes device descriptor
> instead of 18 bytes for some reason. try changeing the
> following line in /sys/src/cmd/usb/lib/dev.c in loaddevdescr():
>
>=C2=A0 =C2=A0 =C2=A0 =C2=A0uchar buf[Ddevlen+255];
>
> to:
>
>=C2=A0 =C2=A0 =C2=A0 =C2=A0uchar buf[Ddevlen];
>
> and see if you still get the short descriptor warning.
>
> [REDACTED] did this change in [REDACTED] fixing problem with some
> usb ethernet device.

that sounds about right.=C2=A0 but there are many other gaffes = like this.

- erik


--089e014940ae65d866050e5c3ba3-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Thu, 5 Feb 2015 11:25:24 -0800 To: 9fans@9fans.net Message-ID: In-Reply-To: <90d988e2fd044123c1f033ce87535f1a@hamnavoe.com> References: <90d988e2fd044123c1f033ce87535f1a@hamnavoe.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41cadfc8-ead9-11e9-9d60-3106f5b1d025 On Thu Feb 5 11:20:53 PST 2015, 9fans@hamnavoe.com wrote: > > try changeing the > > following line in /sys/src/cmd/usb/lib/dev.c in loaddevdescr(): > > > > uchar buf[Ddevlen+255]; > > > > to: > > > > uchar buf[Ddevlen]; > > See /n/sources/patch/maybe/usb-short-desc i should have remembered my own patch ... - erik From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <90d988e2fd044123c1f033ce87535f1a@hamnavoe.com> To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Thu, 5 Feb 2015 19:25:38 +0000 In-Reply-To: <2d2a214ee9f7606cafa6b61b36686105@felloff.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41c53eba-ead9-11e9-9d60-3106f5b1d025 > try changeing the > following line in /sys/src/cmd/usb/lib/dev.c in loaddevdescr(): > > uchar buf[Ddevlen+255]; > > to: > > uchar buf[Ddevlen]; See /n/sources/patch/maybe/usb-short-desc From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <338b0ee60d68b51f67557bc9a70bad6e@felloff.net> Date: Thu, 5 Feb 2015 20:29:44 +0100 From: cinap_lenrek@felloff.net To: 9fans@9fans.net In-Reply-To: <36e09ac7293b6debf2af3b1436c56003@brasstown.quanstro.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41cf266e-ead9-11e9-9d60-3106f5b1d025 yeah, maybe. i dont know if this is the problem. just what i'd try first. :) -- cinap From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <9cc525189fc0d70c918ad653744ffc68@felloff.net> Date: Thu, 5 Feb 2015 20:42:50 +0100 From: cinap_lenrek@felloff.net To: 9fans@9fans.net In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41d3b7ec-ead9-11e9-9d60-3106f5b1d025 aiju build a computer arround the xilinx zynq-7000 (dualcore arm cortex A9 with fpga): http://aiju.de/electronics/aijuboard/ and wrote kernel and bootloader here: http://code.google.com/p/plan9front/source/browse/sys/src/9/zynq/ http://code.google.com/p/plan9front/source/browse/sys/src/boot/zynq/ the kernel supports multiprocessing (with all the caches enabled), the fpga, gigabit ethernet and displayport. boots over tftp. http://img.stanleylieber.com/?tags=aijuboard things todo: usb, sata, sdcard. -- cinap From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <9cc525189fc0d70c918ad653744ffc68@felloff.net> References: <9cc525189fc0d70c918ad653744ffc68@felloff.net> Date: Fri, 6 Feb 2015 06:56:50 +1100 Message-ID: From: Shane Morris To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=001a11c3507c6d5100050e5cb4e6 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41e9d2d4-ead9-11e9-9d60-3106f5b1d025 --001a11c3507c6d5100050e5cb4e6 Content-Type: text/plain; charset=UTF-8 Champion. I have a Parallella, with a 7010, and a Epiphany-III. Was wondering if I'd pull the finger out and port Plan 9, or even pay for it. Seems I might not have to. There is also a SnowLEO SDR unit that uses a 7010 and a LimeMicro chip (think BladeRF). Thank you! Great news! On Fri, Feb 6, 2015 at 6:42 AM, wrote: > aiju build a computer arround the xilinx zynq-7000 (dualcore arm > cortex A9 with fpga): > > http://aiju.de/electronics/aijuboard/ > > and wrote kernel and bootloader here: > > http://code.google.com/p/plan9front/source/browse/sys/src/9/zynq/ > http://code.google.com/p/plan9front/source/browse/sys/src/boot/zynq/ > > the kernel supports multiprocessing (with all the caches enabled), > the fpga, gigabit ethernet and displayport. boots over tftp. > > http://img.stanleylieber.com/?tags=aijuboard > > things todo: usb, sata, sdcard. > > -- > cinap > > --001a11c3507c6d5100050e5cb4e6 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Champion.

I have a Parallella, with a 7= 010, and a Epiphany-III. Was wondering if I'd pull the finger out and p= ort Plan 9, or even pay for it. Seems I might not have to. There is also a = SnowLEO SDR unit that uses a 7010 and a LimeMicro chip (think BladeRF).

Thank you! Great news!

On Fri, Feb 6, 2015 at 6:42 AM, <cinap_lenrek@felloff.net> wrote:
aiju build a computer arround the xilinx zynq-7000 (dualcore = arm
cortex A9 with fpga):

http://= aiju.de/electronics/aijuboard/

and wrote kernel and bootloader here:

http://code.google.com/p/plan9front/source/browse/sys/= src/9/zynq/
http://code.google.com/p/plan9front/source/browse/s= ys/src/boot/zynq/

the kernel supports multiprocessing (with all the caches enabled),
the fpga, gigabit ethernet and displayport. boots over tftp.

http://img.stanleylieber.com/?tags=3Daijuboard

things todo: usb, sata, sdcard.

--
cinap


--001a11c3507c6d5100050e5cb4e6-- From mboxrd@z Thu Jan 1 00:00:00 1970 References: <9cc525189fc0d70c918ad653744ffc68@felloff.net> From: Quintile Content-Type: text/plain; charset=utf-8 In-Reply-To: <9cc525189fc0d70c918ad653744ffc68@felloff.net> Message-Id: Date: Thu, 5 Feb 2015 21:17:42 +0000 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (1.0) Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41ee71b8-ead9-11e9-9d60-3106f5b1d025 ooo! I think we are about to start using zinq's in a new project...=20 I have gotta try it =F0=9F=98=84 -Steve > On 5 Feb 2015, at 19:42, cinap_lenrek@felloff.net wrote: >=20 > aiju build a computer arround the xilinx zynq-7000 (dualcore arm > cortex A9 with fpga): >=20 > http://aiju.de/electronics/aijuboard/ >=20 > and wrote kernel and bootloader here: >=20 > http://code.google.com/p/plan9front/source/browse/sys/src/9/zynq/ > http://code.google.com/p/plan9front/source/browse/sys/src/boot/zynq/ >=20 > the kernel supports multiprocessing (with all the caches enabled), > the fpga, gigabit ethernet and displayport. boots over tftp. >=20 > http://img.stanleylieber.com/?tags=3Daijuboard >=20 > things todo: usb, sata, sdcard. >=20 > -- > cinap From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <9cc525189fc0d70c918ad653744ffc68@felloff.net> Date: Fri, 6 Feb 2015 08:20:57 +1100 Message-ID: From: Shane Morris To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=001a11c258764b20ea050e5de179 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41f34684-ead9-11e9-9d60-3106f5b1d025 --001a11c258764b20ea050e5de179 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hells yes! On Fri, Feb 6, 2015 at 8:17 AM, Quintile wrote: > ooo! I think we are about to start using zinq's in a new project... > > I have gotta try it =F0=9F=98=84 > > -Steve > > > > > > > On 5 Feb 2015, at 19:42, cinap_lenrek@felloff.net wrote: > > > > aiju build a computer arround the xilinx zynq-7000 (dualcore arm > > cortex A9 with fpga): > > > > http://aiju.de/electronics/aijuboard/ > > > > and wrote kernel and bootloader here: > > > > http://code.google.com/p/plan9front/source/browse/sys/src/9/zynq/ > > http://code.google.com/p/plan9front/source/browse/sys/src/boot/zynq/ > > > > the kernel supports multiprocessing (with all the caches enabled), > > the fpga, gigabit ethernet and displayport. boots over tftp. > > > > http://img.stanleylieber.com/?tags=3Daijuboard > > > > things todo: usb, sata, sdcard. > > > > -- > > cinap > > --001a11c258764b20ea050e5de179 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Hells yes!

On Fri, Feb 6, 2015 at 8:17 AM, Quintile <steve@quintile= .net> wrote:
ooo! I think w= e are about to start using zinq's in a new project...

I have gotta try it =F0=9F=98=84

-Steve





> On 5 Feb 2015, at 19:42, c= inap_lenrek@felloff.net wrote:
>
> aiju build a computer arround the xilinx zynq-7000 (dualcore arm
> cortex A9 with fpga):
>
> ht= tp://aiju.de/electronics/aijuboard/
>
> and wrote kernel and bootloader here:
>
> http://code.google.com/p/plan9front/source/browse= /sys/src/9/zynq/
> http://code.google.com/p/plan9front/source/bro= wse/sys/src/boot/zynq/
>
> the kernel supports multiprocessing (with all the caches enabled),
> the fpga, gigabit ethernet and displayport. boots over tftp.
>
> http://img.stanleylieber.com/?tags=3Daijuboard
>
> things todo: usb, sata, sdcard.
>
> --
> cinap


--001a11c258764b20ea050e5de179-- From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Thu, 5 Feb 2015 20:19:29 -0800 To: 9fans@9fans.net Message-ID: In-Reply-To: <9cc525189fc0d70c918ad653744ffc68@felloff.net> References: <9cc525189fc0d70c918ad653744ffc68@felloff.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 41f84508-ead9-11e9-9d60-3106f5b1d025 On Thu Feb 5 11:37:56 PST 2015, cinap_lenrek@felloff.net wrote: > aiju build a computer arround the xilinx zynq-7000 (dualcore arm > cortex A9 with fpga): > > http://aiju.de/electronics/aijuboard/ > > and wrote kernel and bootloader here: > > http://code.google.com/p/plan9front/source/browse/sys/src/9/zynq/ > http://code.google.com/p/plan9front/source/browse/sys/src/boot/zynq/ > > the kernel supports multiprocessing (with all the caches enabled), > the fpga, gigabit ethernet and displayport. boots over tftp. > > http://img.stanleylieber.com/?tags=aijuboard > > things todo: usb, sata, sdcard. does anyone have a picture of this board? - erik From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <2d16aeffa48650f514966f0dd493b428@proxima.alt.za> To: 9fans@9fans.net Date: Fri, 6 Feb 2015 06:34:50 +0200 From: lucio@proxima.alt.za In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 420874be-ead9-11e9-9d60-3106f5b1d025 > does anyone have a picture of this board? That sounds like the challenge Olimex used to rise to, back when they started as a prototyping and production board manufacturers. I don't see that that is their focus still, but they surely have not lost their skills. It would be nice to have a community driven project in this case. Maybe we can at least investigate? Lucio. From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 6 Feb 2015 04:42:45 +0000 Message-ID: <20150206044245.Horde.31yCdc8ft5_FVdcy9xB89Q1@ssl.eumx.net> From: Kurt H Maier To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> References: <9cc525189fc0d70c918ad653744ffc68@felloff.net> In-Reply-To: User-Agent: Internet Messaging Program (IMP) H5 (6.2.2) Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes MIME-Version: 1.0 Content-Disposition: inline Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 420c963e-ead9-11e9-9d60-3106f5b1d025 Quoting erik quanstrom : > > does anyone have a picture of this board? > If you're asking for technical purposes, there's a render at http://9front.org/img/aijuboard.png but I'm not sure that's the final cut. If you're asking for physical proof of its existence, one of the guys who owns one is going to have to feel the need to prove something. khm From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Thu, 5 Feb 2015 20:55:33 -0800 To: 9fans@9fans.net Message-ID: In-Reply-To: <20150206044245.Horde.31yCdc8ft5_FVdcy9xB89Q1@ssl.eumx.net> References: <9cc525189fc0d70c918ad653744ffc68@felloff.net> <20150206044245.Horde.31yCdc8ft5_FVdcy9xB89Q1@ssl.eumx.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42117046-ead9-11e9-9d60-3106f5b1d025 On Thu Feb 5 20:38:05 PST 2015, khm@sciops.net wrote: > Quoting erik quanstrom : > > > > > does anyone have a picture of this board? > > > > If you're asking for technical purposes, there's a render at > http://9front.org/img/aijuboard.png but I'm not sure that's the > final cut. > > If you're asking for physical proof of its existence, one of the > guys who owns one is going to have to feel the need to prove > something. i was not thinking along those lines. :-( i just wanted to see a picture of the board. the render is nice, but the toy budget is not so large. - erik From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 6 Feb 2015 05:12:15 +0000 Message-ID: <20150206051215.Horde.6KaZLZuxzo5Yd1H8JJUk9g5@ssl.eumx.net> From: Kurt H Maier To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> References: <9cc525189fc0d70c918ad653744ffc68@felloff.net> <20150206044245.Horde.31yCdc8ft5_FVdcy9xB89Q1@ssl.eumx.net> In-Reply-To: User-Agent: Internet Messaging Program (IMP) H5 (6.2.2) Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes MIME-Version: 1.0 Content-Disposition: inline Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42157524-ead9-11e9-9d60-3106f5b1d025 Quoting erik quanstrom : > > i was not thinking along those lines. :-( i just wanted to see a picture of > the board. the render is nice, but the toy budget is not so large. > I did spend a bit of time trowling through IRC logs; I could have sworn aiju had posted a photo of a populated (and running) board. I wasn't able to dig up the link. I did find a couple screenshots of 9front running on it -- and of course we wouldn't have the Zynq support code without it! -- but it was a lot of fun hearing aiju talk about different speedbumps he hit while working on the design. And of course it's a really impressive feat, but I'm also firmly in the "can't afford this" camp, sadly. khm From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Thu, 5 Feb 2015 21:35:37 -0800 To: 9fans@9fans.net Message-ID: In-Reply-To: <20150206051215.Horde.6KaZLZuxzo5Yd1H8JJUk9g5@ssl.eumx.net> References: <9cc525189fc0d70c918ad653744ffc68@felloff.net> <20150206044245.Horde.31yCdc8ft5_FVdcy9xB89Q1@ssl.eumx.net> <20150206051215.Horde.6KaZLZuxzo5Yd1H8JJUk9g5@ssl.eumx.net> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4287131e-ead9-11e9-9d60-3106f5b1d025 On Thu Feb 5 21:07:18 PST 2015, khm@sciops.net wrote: > Quoting erik quanstrom : > > > > > i was not thinking along those lines. :-( i just wanted to see a picture of > > the board. the render is nice, but the toy budget is not so large. > > > > I did spend a bit of time trowling through IRC logs; I could have sworn > aiju had posted a photo of a populated (and running) board. I wasn't able > to dig up the link. I did find a couple screenshots of 9front running on > it -- and of course we wouldn't have the Zynq support code without it! -- > but it was a lot of fun hearing aiju talk about different speedbumps he > hit while working on the design. And of course it's a really impressive > feat, but I'm also firmly in the "can't afford this" camp, sadly. yes, quite impressive. i did find one screenshot. i'm not sure if i could fit something like this in the toy budget or not. i'm really curious how the keyboard and mouse work with no usb. - erik From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: From: "Steve Simon" Date: Fri, 6 Feb 2015 11:55:30 +0000 To: 9fans@9fans.net In-Reply-To: <90d988e2fd044123c1f033ce87535f1a@hamnavoe.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 429c02e2-ead9-11e9-9d60-3106f5b1d025 See /n/sources/patch/maybe/usb-short-desc That works a treat, thanks Cinap, Richard, and Erik. -Steve From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: Date: Fri, 6 Feb 2015 13:00:33 +0100 From: cinap_lenrek@felloff.net To: 9fans@9fans.net In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42a34d2c-ead9-11e9-9d60-3106f5b1d025 http://felloff.net/usr/cinap_lenrek/aijuboard/ -- cinap From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Fri, 6 Feb 2015 13:57:36 +0000 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42aa523e-ead9-11e9-9d60-3106f5b1d025 > http://felloff.net/usr/cinap_lenrek/aijuboard/ http://i1.kym-cdn.com/photos/images/original/000/014/416/X2R4UMUE536Z3WIALA7SKNVKP4RXX22Y.jpeg From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Fri, 6 Feb 2015 06:05:57 -0800 To: 9fans@9fans.net Message-ID: <4de491e64ea5c645bcea010fcb35dbc1@brasstown.quanstro.net> In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42b8f3c0-ead9-11e9-9d60-3106f5b1d025 On Fri Feb 6 03:56:17 PST 2015, cinap_lenrek@felloff.net wrote: > http://felloff.net/usr/cinap_lenrek/aijuboard/ nice. thank you! - erik From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Fri, 6 Feb 2015 06:18:19 -0800 To: 9fans@9fans.net Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42c1c6a8-ead9-11e9-9d60-3106f5b1d025 On Fri Feb 6 03:51:08 PST 2015, steve@quintile.net wrote: > See /n/sources/patch/maybe/usb-short-desc >=20 > That works a treat, > thanks Cinap, Richard, and Erik. great. the 9atom version of usb improves on the original by adjusting a few constants to the standard. but the main fix is several places where a devices could return a lot of data, asking only for enough return data to get the true size, then asking for the exact amount of data the device claims. i've also reworked the pc scancode interface which was originally used with a copy of the scancode data for every arch into one that's shared by all using /dev/kbin, which now includes the actual pc keyboard. many lines of redundant code bit the dust. the reason things are still scan code based and not usb code based is that /dev/kbmap uses scan code translation directly. it would be nice to have the keyboard map say CapsLock -> LeftCtlr Shift+Function12 -> '=E2=98=BA instead of dealing with scan codes, but it may be more trouble than it's worth. (the 9atom usb/kb should work fine with older kernels.) - erik From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Fri, 6 Feb 2015 18:13:52 +0000 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42cf2f3c-ead9-11e9-9d60-3106f5b1d025 To return to the original subject ... /n/sources/contrib/miller/9pi2 is a Plan 9 kernel which runs on the Raspberry Pi 2 (one core only, so far). I'll put updated source in contrib/miller/9/bcm later today. mk CONF'='pi2 for the new model, CONF'='pi for the original model. Plan 9 from Bell Labs firmware: rev 1422642103 cpu0: 900MHz ARM Cortex-A7 r0p5 fp: 32 registers, simd fp: arm arch VFPv3+ with common VFP subarch v2; rev 5 eMMC external clock 250 Mhz #u/usb/ep1.0: dwcotg: port 0X0 irq 9 992M memory: 200M kernel data, 792M user, 3762M swap usb/hub... usb/ether... etherusb smsc: b827eb4f2fbd usb/kb... usb/kb... root is from (local, tcp)[local]: tcp Even with one core activated, the rpi2 is noticeably quicker than the rpi. Decoding a 1600x1200 jpeg with 'jpg -t' (from ramfs) takes about 5.8s on rpi, 3.2s on rpi2. Note that the publicity says 900Mhz, but the firmware boots at 600Mhz, and relies on dynamic clock and voltage management in linux to adjust the speed. To get a fixed 900Mhz speed, I put this in config.txt: kernel=9pi2 gpu_mem=16 disable_overscan=1 arm_freq=900 force_turbo=1 Disclaimer: if you put silly numbers in arm_freq, bad stuff might happen. Supposedly the firmware detects this and sets an irreversible bit somewhere that voids your warranty. From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: Date: Fri, 6 Feb 2015 10:18:41 -0800 Message-ID: From: Joe Bowers To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: multipart/alternative; boundary=001a11c2f02847de56050e6f739b Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42d72cb4-ead9-11e9-9d60-3106f5b1d025 --001a11c2f02847de56050e6f739b Content-Type: text/plain; charset=UTF-8 FANTASTIC! Thank you so much! That's so cool! On Fri, Feb 6, 2015 at 10:13 AM, Richard Miller <9fans@hamnavoe.com> wrote: > To return to the original subject ... > > /n/sources/contrib/miller/9pi2 is a Plan 9 kernel which runs on the > Raspberry Pi 2 (one core only, so far). I'll put updated source > in contrib/miller/9/bcm later today. mk CONF'='pi2 for the new > model, CONF'='pi for the original model. > > Plan 9 from Bell Labs > firmware: rev 1422642103 > cpu0: 900MHz ARM Cortex-A7 r0p5 > fp: 32 registers, simd > fp: arm arch VFPv3+ with common VFP subarch v2; rev 5 > eMMC external clock 250 Mhz > #u/usb/ep1.0: dwcotg: port 0X0 irq 9 > 992M memory: 200M kernel data, 792M user, 3762M swap > usb/hub... usb/ether... > etherusb smsc: b827eb4f2fbd > usb/kb... usb/kb... root is from (local, tcp)[local]: tcp > > Even with one core activated, the rpi2 is noticeably quicker than > the rpi. Decoding a 1600x1200 jpeg with 'jpg -t' (from ramfs) > takes about 5.8s on rpi, 3.2s on rpi2. > > Note that the publicity says 900Mhz, but the firmware boots at > 600Mhz, and relies on dynamic clock and voltage management in > linux to adjust the speed. To get a fixed 900Mhz speed, I put > this in config.txt: > > kernel=9pi2 > gpu_mem=16 > disable_overscan=1 > arm_freq=900 > force_turbo=1 > > Disclaimer: if you put silly numbers in arm_freq, bad stuff > might happen. Supposedly the firmware detects this and sets > an irreversible bit somewhere that voids your warranty. > > > --001a11c2f02847de56050e6f739b Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
FANTASTIC! Thank you so much! That's so cool!

On Fri, Feb 6, 2015 = at 10:13 AM, Richard Miller <9fans@hamnavoe.com> wrote:
=
To return to the original subject ...

/n/sources/contrib/miller/9pi2 is a Plan 9 kernel which runs on the
Raspberry Pi 2 (one core only, so far).=C2=A0 I'll put updated source in contrib/miller/9/bcm later today.=C2=A0 mk CONF'=3D'pi2 for the = new
model, CONF'=3D'pi for the original model.

=C2=A0 =C2=A0 =C2=A0 =C2=A0 Plan 9 from Bell Labs
=C2=A0 =C2=A0 =C2=A0 =C2=A0 firmware: rev 1422642103
=C2=A0 =C2=A0 =C2=A0 =C2=A0 cpu0: 900MHz ARM Cortex-A7 r0p5
=C2=A0 =C2=A0 =C2=A0 =C2=A0 fp: 32 registers,=C2=A0 simd
=C2=A0 =C2=A0 =C2=A0 =C2=A0 fp: arm arch VFPv3+ with common VFP subarch v2;= rev 5
=C2=A0 =C2=A0 =C2=A0 =C2=A0 eMMC external clock 250 Mhz
=C2=A0 =C2=A0 =C2=A0 =C2=A0 #u/usb/ep1.0: dwcotg: port 0X0 irq 9
=C2=A0 =C2=A0 =C2=A0 =C2=A0 992M memory: 200M kernel data, 792M user, 3762M= swap
=C2=A0 =C2=A0 =C2=A0 =C2=A0 usb/hub... usb/ether...
=C2=A0 =C2=A0 =C2=A0 =C2=A0 etherusb smsc: b827eb4f2fbd
=C2=A0 =C2=A0 =C2=A0 =C2=A0 usb/kb... usb/kb... root is from (local, tcp)[l= ocal]: tcp

Even with one core activated, the rpi2 is noticeably quicker than
the rpi.=C2=A0 Decoding a 1600x1200 jpeg with 'jpg -t' (from ramfs)=
takes about 5.8s on rpi, 3.2s on rpi2.

Note that the publicity says 900Mhz, but the firmware boots at
600Mhz, and relies on dynamic clock and voltage management in
linux to adjust the speed.=C2=A0 To get a fixed 900Mhz speed, I put
this in config.txt:

=C2=A0 =C2=A0 =C2=A0 =C2=A0 kernel=3D9pi2
=C2=A0 =C2=A0 =C2=A0 =C2=A0 gpu_mem=3D16
=C2=A0 =C2=A0 =C2=A0 =C2=A0 disable_overscan=3D1
=C2=A0 =C2=A0 =C2=A0 =C2=A0 arm_freq=3D900
=C2=A0 =C2=A0 =C2=A0 =C2=A0 force_turbo=3D1

Disclaimer: if you put silly numbers in arm_freq, bad stuff
might happen.=C2=A0 Supposedly the firmware detects this and sets
an irreversible bit somewhere that voids your warranty.



--001a11c2f02847de56050e6f739b-- From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Date: Sat, 7 Feb 2015 10:38:31 +0100 From: Dante To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-Reply-To: References: Message-ID: User-Agent: Posteo Webmail Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42ec75a6-ead9-11e9-9d60-3106f5b1d025 Thanks a lot, Richard! That's awesome!!! Kind Regards, Dante On 06.02.2015 19:13, Richard Miller wrote: > To return to the original subject ... > > /n/sources/contrib/miller/9pi2 is a Plan 9 kernel which runs on the > Raspberry Pi 2 (one core only, so far). I'll put updated source > in contrib/miller/9/bcm later today. mk CONF'='pi2 for the new > model, CONF'='pi for the original model. > > Plan 9 from Bell Labs > firmware: rev 1422642103 > cpu0: 900MHz ARM Cortex-A7 r0p5 > fp: 32 registers, simd > fp: arm arch VFPv3+ with common VFP subarch v2; rev 5 > eMMC external clock 250 Mhz > #u/usb/ep1.0: dwcotg: port 0X0 irq 9 > 992M memory: 200M kernel data, 792M user, 3762M swap > usb/hub... usb/ether... > etherusb smsc: b827eb4f2fbd > usb/kb... usb/kb... root is from (local, tcp)[local]: tcp > > Even with one core activated, the rpi2 is noticeably quicker than > the rpi. Decoding a 1600x1200 jpeg with 'jpg -t' (from ramfs) > takes about 5.8s on rpi, 3.2s on rpi2. > > Note that the publicity says 900Mhz, but the firmware boots at > 600Mhz, and relies on dynamic clock and voltage management in > linux to adjust the speed. To get a fixed 900Mhz speed, I put > this in config.txt: > > kernel=9pi2 > gpu_mem=16 > disable_overscan=1 > arm_freq=900 > force_turbo=1 > > Disclaimer: if you put silly numbers in arm_freq, bad stuff > might happen. Supposedly the firmware detects this and sets > an irreversible bit somewhere that voids your warranty. From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <9dc091ed831c3704ab93c49f93f37cab@hamnavoe.com> To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Sat, 7 Feb 2015 16:50:24 +0000 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42f47a8a-ead9-11e9-9d60-3106f5b1d025 I said: > Disclaimer: if you put silly numbers in arm_freq, bad stuff > might happen. Supposedly the firmware detects this and sets > an irreversible bit somewhere that voids your warranty. There are claims in the raspberry pi forums that the 'void warranty' bit will be set if you configure force_turbo=1, whatever the frequency. So if you care about this, you may be stuck at 600Mhz unless someone cares enough to reverse engineer the linux speed management code. From mboxrd@z Thu Jan 1 00:00:00 1970 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-reply-to: Your message of "Sat, 07 Feb 2015 16:50:24 GMT." <9dc091ed831c3704ab93c49f93f37cab@hamnavoe.com> References: <9dc091ed831c3704ab93c49f93f37cab@hamnavoe.com> Date: Sat, 7 Feb 2015 12:21:41 -0800 From: Bakul Shah Message-Id: <20150207202141.6A037B827@mail.bitblocks.com> Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 42fccff0-ead9-11e9-9d60-3106f5b1d025 On Sat, 07 Feb 2015 16:50:24 GMT Richard Miller <9fans@hamnavoe.com> wrote: > I said: > > > Disclaimer: if you put silly numbers in arm_freq, bad stuff > > might happen. Supposedly the firmware detects this and sets > > an irreversible bit somewhere that voids your warranty. > > There are claims in the raspberry pi forums that the 'void > warranty' bit will be set if you configure force_turbo=1, > whatever the frequency. So if you care about this, you > may be stuck at 600Mhz unless someone cares enough to > reverse engineer the linux speed management code. Hot off the press (from the RPi forum): mpnico wrote: I thought that force_turbo with no over_voltage doesn't void the warranty. Is this not correct for the RPi2 ? You are correct, but Pi2 runs at a higher voltage by default which meant that force_turbo was incorrectly setting the "warranty" bit. That was unintended. So, what we've agreed to do is to no longer treat bit 24 of the board revision as the warranty warranty bit on Pi 2. The latest rpi-update will now set bit 25 when a real warranty condition arises (e.g. force_turbo=1 *and* over_voltage > 0) If bit 24 is currently set, then don't worry, it will be ignored. Bit 25 is the new Pi 2 warranty bit. Pi1 will remain as it did with bit 24 being the warranty bit. dom (Raspberry Pi Engineer & Forum Moderator) From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: <20150207202141.6A037B827@mail.bitblocks.com> References: <9dc091ed831c3704ab93c49f93f37cab@hamnavoe.com> <20150207202141.6A037B827@mail.bitblocks.com> Date: Sun, 8 Feb 2015 02:10:25 +0100 Message-ID: From: hiro <23hiro@gmail.com> To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 430b4ab2-ead9-11e9-9d60-3106f5b1d025 Do the RPI2s break very fast or why is the warranty such an issue? From mboxrd@z Thu Jan 1 00:00:00 1970 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-reply-to: Your message of "Sun, 08 Feb 2015 02:10:25 +0100." References: <9dc091ed831c3704ab93c49f93f37cab@hamnavoe.com> <20150207202141.6A037B827@mail.bitblocks.com> Date: Sat, 7 Feb 2015 18:22:41 -0800 From: Bakul Shah Message-Id: <20150208022242.01EAAB827@mail.bitblocks.com> Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4311a862-ead9-11e9-9d60-3106f5b1d025 On Sun, 08 Feb 2015 02:10:25 +0100 hiro <23hiro@gmail.com> wrote: > Do the RPI2s break very fast or why is the warranty such an issue? A chip's rated clock rate is typically much lower that the max freq it at which it can run stably -- and there is fair bit of variation in this max freq. A rare few 2836s can even run at double the default frequency. But as a side effect of speeding it up and/or increasing internal voltage it will also run much hotter & if you don't use a heat sink, it is likely to fail much sooner. They catch such use by setting an irreversible bit inside the chip. RPF's warranty is valid only if you left these parameters at their default value or changed them as per their instructions (used raspi-config under linux or use the setting n config.txt as per what raspi-config does). From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Sun, 8 Feb 2015 02:36:44 +0000 Message-ID: <20150208023644.Horde.WGe51tuOW3HaPuSjdjU9SQ1@ssl.eumx.net> From: Kurt H Maier To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> References: <9dc091ed831c3704ab93c49f93f37cab@hamnavoe.com> <20150207202141.6A037B827@mail.bitblocks.com> In-Reply-To: User-Agent: Internet Messaging Program (IMP) H5 (6.2.2) Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes MIME-Version: 1.0 Content-Disposition: inline Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4317ce7c-ead9-11e9-9d60-3106f5b1d025 Quoting hiro <23hiro@gmail.com>: > Do the RPI2s break very fast or why is the warranty such an issue? Apparently you can crash one with a light bulb: http://www.raspberrypi.org/forums/viewtopic.php?f=28&t=99042 khm From mboxrd@z Thu Jan 1 00:00:00 1970 From: erik quanstrom Date: Sat, 7 Feb 2015 18:48:28 -0800 To: 9fans@9fans.net Message-ID: <37f6e1b8da602989f0ed9b69e099099b@brasstown.quanstro.net> In-Reply-To: <20150208022242.01EAAB827@mail.bitblocks.com> References: <9dc091ed831c3704ab93c49f93f37cab@hamnavoe.com> <20150207202141.6A037B827@mail.bitblocks.com> <20150208022242.01EAAB827@mail.bitblocks.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 431c846c-ead9-11e9-9d60-3106f5b1d025 On Sat Feb 7 18:18:29 PST 2015, bakul@bitblocks.com wrote: > On Sun, 08 Feb 2015 02:10:25 +0100 hiro <23hiro@gmail.com> wrote: > > Do the RPI2s break very fast or why is the warranty such an issue? > > A chip's rated clock rate is typically much lower that the max > freq it at which it can run stably -- and there is fair bit of > variation in this max freq. A rare few 2836s can even run at > double the default frequency. But as a side effect of > speeding it up and/or increasing internal voltage it will also > run much hotter & if you don't use a heat sink, it is likely > to fail much sooner. They catch such use by setting an > irreversible bit inside the chip. RPF's warranty is valid only > if you left these parameters at their default value or changed > them as per their instructions (used raspi-config under linux > or use the setting n config.txt as per what raspi-config > does). i believe the gp understood this issue, but guessed that there was little chance of breaking this particular chip with this particular clock speed, so it doesn't much matter if the warranty is void. On Sat Feb 7 18:32:31 PST 2015, khm@sciops.net wrote: > Apparently you can crash one with a light bulb: > http://www.raspberrypi.org/forums/viewtopic.php?f=28&t=99042 crash, not broke. and the light sensitive chip was located at iirc u16. - erik From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <1423365502.15089.YahooMailBasic@web184705.mail.ne1.yahoo.com> Date: Sat, 7 Feb 2015 19:18:22 -0800 From: "Brian L. Stuart" To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-Reply-To: <20150208023644.Horde.WGe51tuOW3HaPuSjdjU9SQ1@ssl.eumx.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4327ab80-ead9-11e9-9d60-3106f5b1d025 > Apparently you can crash one with a light bulb: I once read that a similar thing happened when the IBM 701 was first unveiled to the press. IBM had put the CRT-based storage devices behind smoked plexiglass, and one could see the memory visually. Naturally, the photographers took flash pictures of the machine which caused the memory to fail, crashing the machine. Wastson's reaction was to decree that the plexiglass be replaced with a steel plate. BLS From mboxrd@z Thu Jan 1 00:00:00 1970 To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-reply-to: Your message of "Sat, 07 Feb 2015 18:48:28 PST." <37f6e1b8da602989f0ed9b69e099099b@brasstown.quanstro.net> References: <9dc091ed831c3704ab93c49f93f37cab@hamnavoe.com> <20150207202141.6A037B827@mail.bitblocks.com> <20150208022242.01EAAB827@mail.bitblocks.com> <37f6e1b8da602989f0ed9b69e099099b@brasstown.quanstro.net> Date: Sat, 7 Feb 2015 19:26:29 -0800 From: Bakul Shah Message-Id: <20150208032629.8160AB82A@mail.bitblocks.com> Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 432bc698-ead9-11e9-9d60-3106f5b1d025 On Sat, 07 Feb 2015 18:48:28 PST erik quanstrom wrote: > On Sat Feb 7 18:18:29 PST 2015, bakul@bitblocks.com wrote: > > On Sun, 08 Feb 2015 02:10:25 +0100 hiro <23hiro@gmail.com> wrote: > > > Do the RPI2s break very fast or why is the warranty such an issue? > > > > A chip's rated clock rate is typically much lower that the max > > freq it at which it can run stably -- and there is fair bit of > > variation in this max freq. A rare few 2836s can even run at > > double the default frequency. But as a side effect of > > speeding it up and/or increasing internal voltage it will also > > run much hotter & if you don't use a heat sink, it is likely > > to fail much sooner. They catch such use by setting an > > irreversible bit inside the chip. RPF's warranty is valid only > > if you left these parameters at their default value or changed > > them as per their instructions (used raspi-config under linux > > or use the setting n config.txt as per what raspi-config > > does). > > i believe the gp understood this issue, but guessed that there > was little chance of breaking this particular chip with this particular > clock speed, so it doesn't much matter if the warranty is void. Who's gp? > On Sat Feb 7 18:32:31 PST 2015, khm@sciops.net wrote: > > > Apparently you can crash one with a light bulb: > > http://www.raspberrypi.org/forums/viewtopic.php?f=28&t=99042 > > crash, not broke. and the light sensitive chip was located at iirc > u16. Freeze, not crash. All semiconductors are photosensitive. In highschool I made my first photosensor by cutting off part of a transistor metal can and removing all the white goop in it! From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Sun, 8 Feb 2015 10:02:45 +0000 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4333fdea-ead9-11e9-9d60-3106f5b1d025 > Do the RPI2s break very fast or why is the warranty such an issue? Not an issue for me - the pi is cheap enough that I consider it essentially disposable, so I don't think twice about tinkering. But since I was advising people to use turbo mode it seemed courteous to mention the consequences. So far I've worn out the SD card slot on one two-year-old pi. Otherwise they seem pretty robust. From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3a1618acad57cb2c3402b28ae14e73c1@hamnavoe.com> To: 9fans@9fans.net From: Richard Miller <9fans@hamnavoe.com> Date: Sun, 8 Feb 2015 10:09:18 +0000 In-Reply-To: <20150207202141.6A037B827@mail.bitblocks.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4338f5de-ead9-11e9-9d60-3106f5b1d025 > You are correct, but Pi2 runs at a higher voltage by default > which meant that force_turbo was incorrectly setting the > "warranty" bit. That was unintended. The mailbox property interface to the gpu has a tag for VCMSG_SET_TURBO. I wonder if doing it that way would bypass the warranty check? From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 20 Apr 2015 14:23:10 +0000 Message-ID: <20150420142310.Horde.3pxchRMULUzArX6asqXXxw6@ssl.eumx.net> From: Kurt H Maier To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> References: In-Reply-To: User-Agent: Internet Messaging Program (IMP) H5 (6.2.2) Content-Type: text/plain; charset=UTF-8; format=flowed; DelSp=Yes MIME-Version: 1.0 Content-Disposition: inline Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4e014ae8-ead9-11e9-9d60-3106f5b1d025 Quoting Richard Miller <9fans@hamnavoe.com>: >> http://felloff.net/usr/cinap_lenrek/aijuboard/ > > http://i1.kym-cdn.com/photos/images/original/000/014/416/X2R4UMUE536Z3WIALA7SKNVKP4RXX22Y.jpeg GOOD NEWS https://www.indiegogo.com/projects/aijuboard khm From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lyndon Nerenberg Content-Type: multipart/signed; boundary="Apple-Mail=_05206A30-30B3-4450-8E42-9C93D82FACD9"; protocol="application/pgp-signature"; micalg=pgp-sha1 Message-Id: Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Date: Sat, 2 May 2015 20:24:08 -0700 References: <20150420142310.Horde.3pxchRMULUzArX6asqXXxw6@ssl.eumx.net> To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> In-Reply-To: <20150420142310.Horde.3pxchRMULUzArX6asqXXxw6@ssl.eumx.net> Subject: Re: [9fans] Raspberry Pi 2 Model B Topicbox-Message-UUID: 4ecb0d2e-ead9-11e9-9d60-3106f5b1d025 --Apple-Mail=_05206A30-30B3-4450-8E42-9C93D82FACD9 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=us-ascii On Apr 20, 2015, at 7:23 AM, Kurt H Maier wrote: > GOOD NEWS Better news! It made it over the $5K hump. --Apple-Mail=_05206A30-30B3-4450-8E42-9C93D82FACD9 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- iQIcBAEBAgAGBQJVRZTYAAoJEG8PnXiV/JnU/Q4QAJKvkGpKuGpIiQcGHZ/gwCFu opMJRvaXyeg9UrE5JSMGBfuI4rynXaxaLkPSo6zLjRpYcZI7fClS+bxp0gbE5GCc HhZgeSMYeCmCcvI2J2r5YPm5ZfzGj2JPmcPVQno3tvJoq9RhUDAuy5vqpyrNsWtr x8gW9yiCoMt9wkl/5mXSHy1N2RA8B7JNq1aaDqRkpOgvTOHR+Vd7TN0+Qzs4V/Qe aCW0MEsxp4eYe7p5Uf9MCdoWYnPtz2a0DG7oozUBV+SzYp6THACZSg5A65k5j/ME KYNGd5R/tRcOnBia60oRtMQ0vCg40P8bjcAzTkDNhGzCEhOQ9fTfFNSsRSPTIP4H 1SR7yOJdlSF7ffLCMYgX1coJr1bD3qrKPeoUWUl4m3UTu6bqFvuey8IGpZjM/AzL bwLlwXJqDC++Vy0L7rCa4QjRYDbGKQBh0/EPT2uZPbouMH2sgg1vt1gOqgKab5ud Ap0oxsg5BY0OWGA+YVVhK0Ii4SoZf/yl8kEf+pQHGuY2T3ze2NuPAcVz9+yVdIcO GVjonc1jLah0X27idoG29wgIdsMdiEJJJo7myV65+9m1ctv+gKat+75YcqS1zeTf 96GCH+ZdqRxH7E7Cy0ztX0ukOcUpClGZ37F9uZ4ih6txGO/wbG8Lne2emLn9/CmJ GrCJk0H6iURIbTzfLL2g =DA0I -----END PGP SIGNATURE----- --Apple-Mail=_05206A30-30B3-4450-8E42-9C93D82FACD9--