From mboxrd@z Thu Jan 1 00:00:00 1970 From: stuart.yoder@freescale.com (Stuart Yoder) Date: Fri, 15 Aug 2014 16:19:39 +0000 Subject: [PATCH 4/6] arm64: Add DTS support for FSL's LS2085A SoC In-Reply-To: References: <1408096156-29772-1-git-send-email-bhupesh.sharma@freescale.com> <1408096156-29772-5-git-send-email-bhupesh.sharma@freescale.com> <0E51617C-0C5C-4A9A-AB90-394FB7FBE55D@codeaurora.org> Message-ID: <1795b61c335a429c94a7394ce586dcef@BY2PR0301MB0743.namprd03.prod.outlook.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org > -----Original Message----- > From: Kumar Gala [mailto:galak at codeaurora.org] > Sent: Friday, August 15, 2014 9:41 AM > To: Sharma Bhupesh-B45370 > Cc: arnd at arndb.de; Catalin.Marinas at arm.com; devicetree- > discuss at lists.ozlabs.org; Will.Deacon at arm.com; Yoder Stuart-B08248; > grant.likely at secretlab.ca; Basu Arnab-B45036; linux-arm- > kernel at lists.infradead.org > Subject: Re: [PATCH 4/6] arm64: Add DTS support for FSL's LS2085A SoC > > > On Aug 15, 2014, at 9:26 AM, bhupesh.sharma at freescale.com wrote: > > >> -----Original Message----- > >> From: Kumar Gala [mailto:galak at codeaurora.org] > >> Sent: Friday, August 15, 2014 7:00 PM > >> To: Sharma Bhupesh-B45370 > >> Cc: devicetree-discuss at lists.ozlabs.org; Catalin.Marinas at arm.com; > >> arnd at arndb.de; Will.Deacon at arm.com; Yoder Stuart-B08248; > >> grant.likely at secretlab.ca; Basu Arnab-B45036; linux-arm- > >> kernel at lists.infradead.org > >> Subject: Re: [PATCH 4/6] arm64: Add DTS support for FSL's LS2085A SoC > >> > >> > >> On Aug 15, 2014, at 4:49 AM, Bhupesh Sharma > >> wrote: > >> > >>> This patch adds the device tree support for FSL LS2085A SoC based on > >>> ARMv8 architecture. > >>> > >>> Following levels of DTSI/DTS files have been created for the LS2085A > >>> SoC family: > >>> > >>> - fsl-ls2085a.dtsi: > >>> DTS-Include file for FSL LS2085A SoC. > >>> > >>> - fsl-ls2085a-simu.dts: > >>> DTS file for FSL LS2085a software simulator model. > >>> > >>> Signed-off-by: Bhupesh Sharma > >>> Signed-off-by: Arnab Basu > >>> Signed-off-by: Stuart Yoder > >>> --- > >>> arch/arm64/boot/dts/fsl-ls2085a-simu.dts | 29 ++++++ > >> > >> Hmm, outside of something like qemu, we don't normally have simulation > >> model dts/support in the kernel. > > > > Well for ARMv8 - foundation model is an existing simulation model having DTS > > support. > > > > Regards, > > Bhupesh > > True but that model was generally available to the open source community and > was to get the base armv8 support going. Note, the LS2085A SoC definition itself is in fsl-ls2085a.dtsi. The fsl-ls2085a-simu is simply a simulation machine that uses that, and will generally reflect board-level differences from a physical machine in things like Ethernet PHYs and so on. The simulator is available now to Freescale customers and I expect significant use by them over the next few years. If there is a hard rule that 'simulator-based machines are not allowed' in the kernel, thats fine, but I don't understand why that should be the case. Thanks, Stuart