From: Jamie Lentin <jm@lentin.co.uk> To: Imre Kaloz <kaloz@openwrt.org> Cc: Andrew Lunn <andrew@lunn.ch>, Jason Cooper <jason@lakedaemon.net>, Arnd Bergmann <arnd@arndb.de>, Vivien Didelot <vivien.didelot@savoirfairelinux.com>, devicetree@vger.kernel.org, Gregory Clement <gregory.clement@free-electrons.com>, linux-arm-kernel@lists.infradead.org, Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Subject: Re: [PATCH 0/8] Convert Netgear WNR854T to devicetree Date: Fri, 26 Aug 2016 13:56:53 +0100 (BST) [thread overview] Message-ID: <alpine.DEB.2.11.1608261325310.19980@marmot.wormnet.eu> (raw) In-Reply-To: <op.ymsxegsy2s3iss@ecaz> On Fri, 26 Aug 2016, Imre Kaloz wrote: > Hi Jamie, > > On Fri, 26 Aug 2016 11:20:56 +0200, Jamie Lentin <jm@lentin.co.uk> wrote: > > <snip> > >> * Use Flash partition scheme from original netgear Linux image (but >> keeping the uboot/uboot_env split) instead of the partition scheme from >> the old non-DT support, which didn't match either Netgear's layout, >> u-boot or openWRT. NB: I've no copy of the original flash contents >> (Netgear's firmware images only contain a squashfs image of the rootfs), >> so I can't confirm the other partitions are accurately named. > > Both the factory layout and OpenWrt's changed a few times - the later just to > accommodate bigger kernels. Some factory firmwares did include a kernel > update, too. The Netgear firwmare images (as far as I've seen) all contain a uImage, as the uImage lives in the same JFFS2 partition as the rootfs, which the firmware image is a dump of. > I would suggest staying with the OpenWrt layour (maybe increase again the > size of the kernel partition): > - the bootloader loads the kernel from JFFS2 > - most of the partitions in the factory firmware are empty Phew, I'm not missing out on much then :) > - the factory layout gives you almost no space to play with > > But this is up to you now :) When making a patchset for the D-Link DNS-325 I remember being told that the kernel's default partition scheme should match the vendor's (even if it is fairly nonsensical). It's easy enough to override if you've replaced the default firmware, and I'll invariably be overriding it so the mainline kernel definition won't make much difference to me either way. Of course, one could also argue I'm breaking backwards compatibility at this point by changing it, so maybe I should put it back. > Best, > > Imre -- Jamie Lentin
WARNING: multiple messages have this Message-ID (diff)
From: jm@lentin.co.uk (Jamie Lentin) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 0/8] Convert Netgear WNR854T to devicetree Date: Fri, 26 Aug 2016 13:56:53 +0100 (BST) [thread overview] Message-ID: <alpine.DEB.2.11.1608261325310.19980@marmot.wormnet.eu> (raw) In-Reply-To: <op.ymsxegsy2s3iss@ecaz> On Fri, 26 Aug 2016, Imre Kaloz wrote: > Hi Jamie, > > On Fri, 26 Aug 2016 11:20:56 +0200, Jamie Lentin <jm@lentin.co.uk> wrote: > > <snip> > >> * Use Flash partition scheme from original netgear Linux image (but >> keeping the uboot/uboot_env split) instead of the partition scheme from >> the old non-DT support, which didn't match either Netgear's layout, >> u-boot or openWRT. NB: I've no copy of the original flash contents >> (Netgear's firmware images only contain a squashfs image of the rootfs), >> so I can't confirm the other partitions are accurately named. > > Both the factory layout and OpenWrt's changed a few times - the later just to > accommodate bigger kernels. Some factory firmwares did include a kernel > update, too. The Netgear firwmare images (as far as I've seen) all contain a uImage, as the uImage lives in the same JFFS2 partition as the rootfs, which the firmware image is a dump of. > I would suggest staying with the OpenWrt layour (maybe increase again the > size of the kernel partition): > - the bootloader loads the kernel from JFFS2 > - most of the partitions in the factory firmware are empty Phew, I'm not missing out on much then :) > - the factory layout gives you almost no space to play with > > But this is up to you now :) When making a patchset for the D-Link DNS-325 I remember being told that the kernel's default partition scheme should match the vendor's (even if it is fairly nonsensical). It's easy enough to override if you've replaced the default firmware, and I'll invariably be overriding it so the mainline kernel definition won't make much difference to me either way. Of course, one could also argue I'm breaking backwards compatibility at this point by changing it, so maybe I should put it back. > Best, > > Imre -- Jamie Lentin
next prev parent reply other threads:[~2016-08-26 12:56 UTC|newest] Thread overview: 179+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-07-16 14:28 [PATCH v0 00/10] Convert Netgear WNR854T to devicetree Jamie Lentin 2016-07-16 14:28 ` Jamie Lentin 2016-07-16 14:28 ` Jamie Lentin 2016-07-16 14:28 ` [PATCH v0 01/10] arm: orion5x: Add required properties for orion-wdt to DT node Jamie Lentin 2016-07-16 14:28 ` Jamie Lentin 2016-07-16 14:28 ` Jamie Lentin 2016-07-16 16:03 ` Andrew Lunn 2016-07-16 16:03 ` Andrew Lunn 2016-07-16 14:29 ` [PATCH v0 02/10] arm: orion5x: Add documentation for SoC and board bindings Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 16:05 ` Andrew Lunn 2016-07-16 16:05 ` Andrew Lunn 2016-07-16 16:05 ` Andrew Lunn 2016-07-17 20:35 ` Rob Herring 2016-07-17 20:35 ` Rob Herring 2016-07-17 20:35 ` Rob Herring 2016-07-16 14:29 ` [PATCH v0 03/10] arm: orion5x: Add clk support for mv88f5181 Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 16:10 ` Andrew Lunn 2016-07-16 16:10 ` Andrew Lunn 2016-07-16 16:10 ` Andrew Lunn 2016-07-16 17:34 ` Sergei Shtylyov 2016-07-16 17:34 ` Sergei Shtylyov 2016-07-16 17:34 ` Sergei Shtylyov 2016-07-17 20:36 ` Rob Herring 2016-07-17 20:36 ` Rob Herring 2016-07-17 20:36 ` Rob Herring 2016-07-16 14:29 ` [PATCH v0 04/10] arm: orion5x: Generalise mv88f5181l pinctrl support for 88f5181 Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 16:15 ` Andrew Lunn 2016-07-16 16:15 ` Andrew Lunn 2016-07-17 20:40 ` Rob Herring 2016-07-17 20:40 ` Rob Herring 2016-07-17 20:40 ` Rob Herring 2016-07-16 14:29 ` [PATCH v0 05/10] arm: orion5x: Add DT include for mv88f5181 Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 16:17 ` Andrew Lunn 2016-07-16 16:17 ` Andrew Lunn 2016-07-16 16:17 ` Andrew Lunn 2016-07-17 20:41 ` Rob Herring 2016-07-17 20:41 ` Rob Herring 2016-07-16 14:29 ` [PATCH v0 06/10] arm: orion5x: Add DT-based support for Netgear WNR854T Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 16:34 ` Andrew Lunn 2016-07-16 16:34 ` Andrew Lunn 2016-07-16 16:34 ` Andrew Lunn 2016-07-16 16:39 ` Andrew Lunn 2016-07-16 16:39 ` Andrew Lunn 2016-07-16 19:10 ` Arnd Bergmann 2016-07-16 19:10 ` Arnd Bergmann 2016-07-17 9:39 ` Jamie Lentin 2016-07-17 9:39 ` Jamie Lentin 2016-07-17 9:39 ` Jamie Lentin 2016-07-17 20:41 ` Arnd Bergmann 2016-07-17 20:41 ` Arnd Bergmann 2016-07-18 9:44 ` Thomas Petazzoni 2016-07-18 9:44 ` Thomas Petazzoni 2016-07-18 10:06 ` Arnd Bergmann 2016-07-18 10:06 ` Arnd Bergmann 2016-07-18 10:06 ` Arnd Bergmann 2016-07-19 9:40 ` Jamie Lentin 2016-07-19 9:40 ` Jamie Lentin 2016-07-19 9:46 ` Arnd Bergmann 2016-07-19 9:46 ` Arnd Bergmann 2016-07-17 20:51 ` Rob Herring 2016-07-17 20:51 ` Rob Herring 2016-07-19 9:46 ` Jamie Lentin 2016-07-19 9:46 ` Jamie Lentin 2016-07-19 9:46 ` Jamie Lentin 2016-07-16 14:29 ` [PATCH v0 07/10] arm: orion5x: Remove old non-DT-based WNR854T support Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 16:36 ` Andrew Lunn 2016-07-16 16:36 ` Andrew Lunn 2016-07-16 14:29 ` [PATCH v0 08/10] net: phy: Try looking for a phy-handle property to find the OF node Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 16:44 ` Andrew Lunn 2016-07-16 16:44 ` Andrew Lunn 2016-07-16 14:29 ` [PATCH v0 09/10] net: phy: Re-attempt custom DT configuration after configuration Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 16:44 ` Andrew Lunn 2016-07-16 16:44 ` Andrew Lunn 2016-07-16 16:44 ` Andrew Lunn 2016-07-16 14:29 ` [PATCH v0 10/10] arm: orion5x: Configure Netgear WNR854T network port LEDs Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 14:29 ` Jamie Lentin 2016-07-16 20:53 ` [PATCH v0 00/10] Convert Netgear WNR854T to devicetree Andrew Lunn 2016-07-16 20:53 ` Andrew Lunn 2016-07-17 12:52 ` Jamie Lentin 2016-07-17 12:52 ` Jamie Lentin 2016-07-17 15:33 ` Andrew Lunn 2016-07-17 15:33 ` Andrew Lunn 2016-07-19 9:33 ` Jamie Lentin 2016-07-19 9:33 ` Jamie Lentin 2016-07-19 14:01 ` Andrew Lunn 2016-07-19 14:01 ` Andrew Lunn 2016-07-19 14:16 ` Andrew Lunn 2016-07-19 15:04 ` Vivien Didelot [not found] ` <1468679348-10522-1-git-send-email-jm-Pj/HzkgeCk7QXOPxS62xeg@public.gmane.org> 2016-08-26 9:20 ` [PATCH 0/8] " Jamie Lentin 2016-08-26 9:20 ` Jamie Lentin [not found] ` <1472203264-21089-1-git-send-email-jm-Pj/HzkgeCk7QXOPxS62xeg@public.gmane.org> 2016-08-26 9:20 ` [PATCH 1/8] arm: orion5x: Add documentation for SoC and board bindings Jamie Lentin 2016-08-26 9:20 ` Jamie Lentin 2016-08-26 9:20 ` [PATCH 2/8] arm: orion5x: Add clk support for mv88f5181 Jamie Lentin 2016-08-26 9:20 ` Jamie Lentin [not found] ` <1472203264-21089-3-git-send-email-jm-Pj/HzkgeCk7QXOPxS62xeg@public.gmane.org> 2016-08-26 11:34 ` LABBE Corentin 2016-08-26 11:34 ` LABBE Corentin 2016-08-26 12:24 ` Jamie Lentin 2016-08-26 12:24 ` Jamie Lentin 2016-08-26 14:24 ` Andrew Lunn 2016-08-26 14:24 ` Andrew Lunn 2016-08-26 9:20 ` [PATCH 3/8] arm: orion5x: Generalise mv88f5181l pinctrl support for 88f5181 Jamie Lentin 2016-08-26 9:20 ` Jamie Lentin 2016-08-26 9:21 ` [PATCH 4/8] arm: orion5x: Alias uart0 to serial0 for all orion5x Jamie Lentin 2016-08-26 9:21 ` Jamie Lentin [not found] ` <1472203264-21089-5-git-send-email-jm-Pj/HzkgeCk7QXOPxS62xeg@public.gmane.org> 2016-08-26 14:54 ` Andrew Lunn 2016-08-26 14:54 ` Andrew Lunn 2016-09-12 21:12 ` Arnd Bergmann 2016-09-12 21:12 ` Arnd Bergmann 2016-08-26 9:21 ` [PATCH 5/8] arm: orion5x: Add DT include for mv88f5181 Jamie Lentin 2016-08-26 9:21 ` Jamie Lentin [not found] ` <1472203264-21089-6-git-send-email-jm-Pj/HzkgeCk7QXOPxS62xeg@public.gmane.org> 2016-08-26 14:55 ` Andrew Lunn 2016-08-26 14:55 ` Andrew Lunn 2016-08-31 15:15 ` Rob Herring 2016-08-31 15:15 ` Rob Herring 2016-08-26 9:21 ` [PATCH 6/8] arm: orion5x: Add DT-based support for Netgear WNR854T Jamie Lentin 2016-08-26 9:21 ` Jamie Lentin [not found] ` <1472203264-21089-7-git-send-email-jm-Pj/HzkgeCk7QXOPxS62xeg@public.gmane.org> 2016-08-31 15:26 ` Rob Herring 2016-08-31 15:26 ` Rob Herring 2016-09-05 21:07 ` [PATCH 6/8 v2] " Jamie Lentin 2016-09-05 21:07 ` Jamie Lentin [not found] ` <1473109646-23366-1-git-send-email-jm-Pj/HzkgeCk7QXOPxS62xeg@public.gmane.org> 2016-09-08 12:41 ` Gregory CLEMENT 2016-09-08 12:41 ` Gregory CLEMENT [not found] ` <87d1kebm2o.fsf-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> 2016-09-08 16:47 ` Jamie Lentin 2016-09-08 16:47 ` Jamie Lentin 2016-09-12 17:06 ` Rob Herring 2016-09-12 17:06 ` Rob Herring 2016-09-12 21:13 ` Arnd Bergmann 2016-09-12 21:13 ` Arnd Bergmann 2016-09-12 21:19 ` Arnd Bergmann 2016-09-12 21:19 ` Arnd Bergmann 2016-09-12 22:03 ` Andrew Lunn 2016-09-12 22:03 ` Andrew Lunn [not found] ` <20160912220344.GM11400-g2DYL2Zd6BY@public.gmane.org> 2016-09-13 9:10 ` Jamie Lentin 2016-09-13 9:10 ` Jamie Lentin [not found] ` <88e40f0c6cafec244dc16af5a03cfb44-SBYVURHw+sBNwP/n92qj9LVCufUGDwFn@public.gmane.org> 2016-09-13 12:36 ` Andrew Lunn 2016-09-13 12:36 ` Andrew Lunn [not found] ` <20160913123639.GB15332-g2DYL2Zd6BY@public.gmane.org> 2016-09-13 14:15 ` Jamie Lentin 2016-09-13 14:15 ` Jamie Lentin [not found] ` <b7d442f9d26249976d7698b6a32db2a3-SBYVURHw+sBNwP/n92qj9LVCufUGDwFn@public.gmane.org> 2016-09-13 19:16 ` Gregory CLEMENT 2016-09-13 19:16 ` Gregory CLEMENT [not found] ` <87r38nehkj.fsf-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> 2016-09-13 20:39 ` Arnd Bergmann 2016-09-13 20:39 ` Arnd Bergmann 2016-08-26 9:21 ` [PATCH 7/8] arm: orion5x: Remove old non-DT-based WNR854T support Jamie Lentin 2016-08-26 9:21 ` Jamie Lentin [not found] ` <1472203264-21089-8-git-send-email-jm-Pj/HzkgeCk7QXOPxS62xeg@public.gmane.org> 2016-08-26 14:59 ` Andrew Lunn 2016-08-26 14:59 ` Andrew Lunn 2016-08-26 9:21 ` [PATCH 8/8] arm: orion5x: Configure WNR854T ethernet PHY LEDs Jamie Lentin 2016-08-26 9:21 ` Jamie Lentin [not found] ` <1472203264-21089-9-git-send-email-jm-Pj/HzkgeCk7QXOPxS62xeg@public.gmane.org> 2016-08-26 15:05 ` Andrew Lunn 2016-08-26 15:05 ` Andrew Lunn 2016-08-26 15:05 ` Andrew Lunn 2016-08-26 15:05 ` Andrew Lunn 2016-08-26 12:09 ` [PATCH 0/8] Convert Netgear WNR854T to devicetree Imre Kaloz 2016-08-26 12:09 ` Imre Kaloz 2016-08-26 12:56 ` Jamie Lentin [this message] 2016-08-26 12:56 ` Jamie Lentin [not found] ` <alpine.DEB.2.11.1608261325310.19980-5X291BYdrx55rAo4AelP/Ydd74u8MsAO@public.gmane.org> 2016-08-26 14:33 ` Andrew Lunn 2016-08-26 14:33 ` Andrew Lunn 2016-08-26 16:50 ` Jamie Lentin 2016-08-26 16:50 ` Jamie Lentin [not found] ` <alpine.DEB.2.11.1608261703460.19980-5X291BYdrx55rAo4AelP/Ydd74u8MsAO@public.gmane.org> 2016-08-26 20:30 ` Imre Kaloz 2016-08-26 20:30 ` Imre Kaloz
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