On Sat, Feb 25, 2023 at 10:52 AM Paul Gortmaker <paul.gortma...@windriver.com> wrote: > > [RE: [RFC PATCH 0/4] Remove some e300/MPC83xx evaluation platforms] On > 24/02/2023 (Fri 21:16) Leo Li wrote: > > > > > > > > -----Original Message----- > > > From: Paul Gortmaker <paul.gortma...@windriver.com> > > > Sent: Monday, February 20, 2023 5:59 AM > > > To: linuxppc-dev@lists.ozlabs.org > > > Cc: Leo Li <leoyang...@nxp.com>; Claudiu Manoil <claudiu.man...@nxp.com>; > > > Paul Gortmaker <paul.gortma...@windriver.com>; Scott Wood > > > <o...@buserror.net>; Michael Ellerman <m...@ellerman.id.au>; Benjamin > > > Herrenschmidt <b...@kernel.crashing.org>; Paul Mackerras > > > <pau...@samba.org> > > > Subject: [RFC PATCH 0/4] Remove some e300/MPC83xx evaluation platforms > > > > > > [This RFC is proposed for v6.4 and hence is based off linux-next.] > > > > > > This series removes support for four e300 (MPC83xx) Freescale processor > > > family evaluation boards that were added to the kernel in the 2006 era. > > > > Hi Paul, > > > > I talked with our marketing team on this. Although we do not recommend any > > new design with these SoCs, they are still being shipped in large amount to > > customers now. Plus it is possible for the bigger amount of existing > > devices to be updating their software that includes a new kernel. So we > > should definitely keep all the common SoC code that might be needed to > > support their own design. > > Thanks for confirming with your marketing team that they "do not > recommend any new design with these SoCs" -- it also confirms the > information I read on the web pages for the platforms. > > As those of us immersed in this world all know from the 101 basics of > Product Life Cycle lessons, it doesn't matter if it is a phone or a > set-top-box/PVR or whatever else kind of non-PC consumer device -- > kernel uprevs never happen in that product space.
One thing is that the QorIQ platforms are not for the consumer devices. They are mostly used in networking or communication equipment. I think their product life cycle would be more like the server or data center scenario. Regards, Leo > > So with the best interests of the mainline kernel in mind, I think we > are good to proceed with this for summer 2023. And of course as I've > said many times before - the kernel is in git, so really you can't > delete anything anyway - it remains in history forever. > > Thanks, > Paul. > -- > > > > > > > > > These boards were all of a very similar form factor, a largish PCI or > > > PCI-X card > > > that could also be used standalone with an external power brick, and all > > > shared the Modular Development System (MDS) designation. > > > > > > These platforms were made in limited quantity and were generally designed > > > to get early silicon into the hands of OEMs who would later develop their > > > own boards/platforms. As such, availability was limited to those who > > > would > > > be working on boards and/or BSP support. > > > > > > Many early revision MDS platforms used a mechanical clamping system to > > > hold the BGA CPU in place to facilitate CPU updates -- something not > > > normally possible for a soldered down BGA in a COTS system. > > > > > > The point of these details is to give context that reflects that these > > > four > > > boards were made in limited quantities, were not in a form factor that is > > > really "hobbyist" friendly and hence make sense for removal 17 years > > > later. > > > > We would agree with you that the MDS platforms are only used by a limited > > number of customers for evaluation purpose, so it should be fine to be > > removed. So for this series: > > > > Acked-by: Li Yang <leoyang...@nxp.com> > > > > > > > > Here, we remove the MPC8548E-MDS[1], the MPC8360E-MDS[2], the > > > MPC837xE-MDS[3], and the MPC832x-MDS[4] board support from the kernel. > > > > > > There will still exist several e300 Freescale Reference Design System > > > (RDS) > > > boards[5] and mini-ITX boards[6] with support in the kernel. While these > > > were more of a COTS "ready to deploy" design more suited to hobbyists, it > > > probably makes sense to consider removing these as well, based on age. > > > > These boards are mass market boards that sold in larger amount and are much > > more likely to still be used. We would suggest we keep them for now. > > > > > > > > But before we get to that, lets see how this goes -- and then we should > > > look > > > at similar early e500 evaluation platforms [MPC8540-ADS, etc] next, as the > > > oldest there date back to 2002[7] -- before considering RDB/mITX. > > > > > > I intentionally didn't put any links in the commits, since as we all > > > know, they > > > tend not to be stable long term, so keep them here in the merge data. > > > Credit to NXP for keeping around these old legacy docs this long! > > > > > > Paul. > > > > > > -- > > > > > > [1] > > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > > .nxp.com%2Fdesign%2Fqoriq-developer-resources%2Fmpc8349e-modular- > > > development- > > > system%3AMPC8349EMDS&data=05%7C01%7Cleoyang.li%40nxp.com%7Ca2 > > > 820c1e442640c5a39108db1339fd9f%7C686ea1d3bc2b4c6fa92cd99c5c301635% > > > 7C0%7C1%7C638124912025220501%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi > > > MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C300 > > > 0%7C%7C%7C&sdata=Q4COgwpjsE4mHXvl9HdGo3otPCYML3z%2FR6IoCEYRE > > > wg%3D&reserved=0 > > > [2] > > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > > .nxp.com%2Fdocs%2Fen%2Fuser- > > > guide%2FMPC8360EMDSUM.pdf&data=05%7C01%7Cleoyang.li%40nxp.com > > > %7Ca2820c1e442640c5a39108db1339fd9f%7C686ea1d3bc2b4c6fa92cd99c5c30 > > > 1635%7C0%7C1%7C638124912025220501%7CUnknown%7CTWFpbGZsb3d8ey > > > JWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D% > > > 7C3000%7C%7C%7C&sdata=JyLT0MfGAHQ8a%2FNgpLdVFtyACkwPR%2FOkB > > > yN1aW0wySs%3D&reserved=0 > > > [3] > > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > > .nxp.com%2Fproducts%2Fprocessors-and-microcontrollers%2Flegacy-mpu- > > > mcus%2Fpowerquicc-processors%2Fpowerquicc-iii-mpc85xx%2Fmpc837xe- > > > modular-development- > > > system%3AMPC837XEMDS&data=05%7C01%7Cleoyang.li%40nxp.com%7Ca2 > > > 820c1e442640c5a39108db1339fd9f%7C686ea1d3bc2b4c6fa92cd99c5c301635% > > > 7C0%7C1%7C638124912025220501%7CUnknown%7CTWFpbGZsb3d8eyJWIjoi > > > MC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C300 > > > 0%7C%7C%7C&sdata=052dpEEcGmbuhRLnMDCNoOkTeguF%2BPA0oJGNvV1 > > > jSjI%3D&reserved=0 > > > [4] > > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > > .nxp.com%2Fproducts%2Fprocessors-and-microcontrollers%2Flegacy-mpu- > > > mcus%2Fpowerquicc-processors%2Fpowerquicc-ii-pro-mpc83xx%2Flow- > > > power-powerquicc-ii-pro-processor-with-ddr2-tdm-pci-security-usb-quicc- > > > engine-with- > > > utopia%3AMPC8323E&data=05%7C01%7Cleoyang.li%40nxp.com%7Ca2820c1 > > > e442640c5a39108db1339fd9f%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0% > > > 7C1%7C638124912025220501%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4 > > > wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7 > > > C%7C%7C&sdata=mZQh%2FogNgNUb0wNJV972kYIDvn61gx0TWNd1u1d7PZ > > > Q%3D&reserved=0 > > > [5] > > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > > .nxp.com%2Fdocs%2Fen%2Ffact- > > > sheet%2FMPC8379ERDBFS.pdf&data=05%7C01%7Cleoyang.li%40nxp.com%7 > > > Ca2820c1e442640c5a39108db1339fd9f%7C686ea1d3bc2b4c6fa92cd99c5c3016 > > > 35%7C0%7C1%7C638124912025220501%7CUnknown%7CTWFpbGZsb3d8eyJ > > > WIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D% > > > 7C3000%7C%7C%7C&sdata=EJmP6Regr7zpvYvHUmX64h3LZSaBT3Mb1h%2BN > > > KQT%2FUls%3D&reserved=0 > > > [6] > > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > > .digikey.ca%2Fen%2Fproducts%2Fdetail%2Fnxp-usa-inc%2FMPC8349E-MITX- > > > GP%2F1204733&data=05%7C01%7Cleoyang.li%40nxp.com%7Ca2820c1e44264 > > > 0c5a39108db1339fd9f%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C1%7 > > > C638124912025220501%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAw > > > MDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C% > > > 7C&sdata=hw6IQDUaXH6huQFCnCkFIbNfj1xMrq%2FanDMUU%2FXZYQg%3 > > > D&reserved=0 > > > [7] > > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww > > > .nxp.com%2Fdocs%2Fen%2Freference- > > > manual%2FMPC8560ADSUG.pdf&data=05%7C01%7Cleoyang.li%40nxp.com% > > > 7Ca2820c1e442640c5a39108db1339fd9f%7C686ea1d3bc2b4c6fa92cd99c5c301 > > > 635%7C0%7C1%7C638124912025220501%7CUnknown%7CTWFpbGZsb3d8eyJ > > > WIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D% > > > 7C3000%7C%7C%7C&sdata=Ed%2BZR07y9Sp8xx5H47SAXzk9ET73creygxk%2B > > > emmbfuA%3D&reserved=0 > > > > > > Cc: Scott Wood <o...@buserror.net> > > > Cc: Michael Ellerman <m...@ellerman.id.au> > > > Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> > > > Cc: Paul Mackerras <pau...@samba.org> > > > Cc: Li Yang <leoyang...@nxp.com> > > > Cc: Claudiu Manoil <claudiu.man...@nxp.com> > > > > > > --- > > > > > > Paul Gortmaker (4): > > > powerpc: drop MPC834x_MDS platform support > > > powerpc: drop MPC836x_MDS platform support > > > powerpc: drop MPC837x_MDS platform support > > > powerpc: drop MPC832x_MDS platform support > > > > > > arch/powerpc/boot/Makefile | 1 - > > > arch/powerpc/boot/dts/mpc832x_mds.dts | 436 --------------- > > > arch/powerpc/boot/dts/mpc834x_mds.dts | 403 -------------- > > > arch/powerpc/boot/dts/mpc836x_mds.dts | 481 ----------------- > > > arch/powerpc/boot/dts/mpc8377_mds.dts | 505 ------------------ > > > arch/powerpc/boot/dts/mpc8378_mds.dts | 489 ----------------- > > > arch/powerpc/boot/dts/mpc8379_mds.dts | 455 ---------------- > > > .../configs/83xx/mpc832x_mds_defconfig | 59 -- > > > .../configs/83xx/mpc834x_mds_defconfig | 58 -- > > > .../configs/83xx/mpc836x_mds_defconfig | 64 --- > > > .../configs/83xx/mpc837x_mds_defconfig | 58 -- > > > arch/powerpc/configs/mpc83xx_defconfig | 4 - > > > arch/powerpc/configs/ppc6xx_defconfig | 4 - > > > arch/powerpc/platforms/83xx/Kconfig | 32 -- > > > arch/powerpc/platforms/83xx/Makefile | 4 - > > > arch/powerpc/platforms/83xx/mpc832x_mds.c | 110 ---- > > > arch/powerpc/platforms/83xx/mpc834x_mds.c | 101 ---- > > > arch/powerpc/platforms/83xx/mpc836x_mds.c | 210 -------- > > > arch/powerpc/platforms/83xx/mpc837x_mds.c | 103 ---- > > > 19 files changed, 3577 deletions(-) > > > delete mode 100644 arch/powerpc/boot/dts/mpc832x_mds.dts > > > delete mode 100644 arch/powerpc/boot/dts/mpc834x_mds.dts > > > delete mode 100644 arch/powerpc/boot/dts/mpc836x_mds.dts > > > delete mode 100644 arch/powerpc/boot/dts/mpc8377_mds.dts > > > delete mode 100644 arch/powerpc/boot/dts/mpc8378_mds.dts > > > delete mode 100644 arch/powerpc/boot/dts/mpc8379_mds.dts > > > delete mode 100644 arch/powerpc/configs/83xx/mpc832x_mds_defconfig > > > delete mode 100644 arch/powerpc/configs/83xx/mpc834x_mds_defconfig > > > delete mode 100644 arch/powerpc/configs/83xx/mpc836x_mds_defconfig > > > delete mode 100644 arch/powerpc/configs/83xx/mpc837x_mds_defconfig > > > delete mode 100644 arch/powerpc/platforms/83xx/mpc832x_mds.c > > > delete mode 100644 arch/powerpc/platforms/83xx/mpc834x_mds.c > > > delete mode 100644 arch/powerpc/platforms/83xx/mpc836x_mds.c > > > delete mode 100644 arch/powerpc/platforms/83xx/mpc837x_mds.c > > > > > > -- > > > 2.17.1 > >
