In v2.6.27 (2008, 917f0af9e5a9) the sbc8260 support was implicitly retired by not being carried forward through the ppc --> powerpc device tree transition.
Then, in v3.6 (2012, b048b4e17cbb) we retired the support for the sbc8560 boards. Next, in v4.18 (2017, 3bc6cf5a86e5) we retired the support for the 2006 vintage sbc834x boards. The sbc8548 and sbc8641d boards were maybe 1-2 years newer than the sbc834x boards, but it is also 3+ years later, so it makes sense to now retire them as well - which is what is done here. These two remaining WR boards were based on the Freescale MPC8548-CDS and the MPC8641D-HPCN reference board implementations. Having had the chance to use these and many other Fsl ref boards, I know this: The Freescale reference boards were typically produced in limited quantity and primarily available to BSP developers and hardware designers, and not likely to have found a 2nd life with hobbyists and/or collectors. It was good to have that BSP code subjected to mainline review and hence also widely available back in the day. But given the above, we should probably also be giving serious consideration to retiring additional similar age/type reference board platforms as well. I've always felt it is important for us to be proactive in retiring old code, since it has a genuine non-zero carrying cost, as described in the 930d52c012b8 merge log. But for the here and now, we just clean up the remaining BSP code that I had added for SBC platforms. Paul. -- Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> Cc: Michael Ellerman <m...@ellerman.id.au> Cc: Paul Mackerras <pau...@samba.org> Cc: Scott Wood <o...@buserror.net> The following changes since commit 7c53f6b671f4aba70ff15e1b05148b10d58c2837: Linux 5.11-rc3 (2021-01-10 14:34:50 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux.git wr_sbc-delete for you to fetch changes up to 1dfb28199572e3f6517cada41f6a150551749da1: MAINTAINERS: update for Paul Gortmaker (2021-01-11 00:06:01 -0500) ---------------------------------------------------------------- Paul Gortmaker (3): powerpc: retire sbc8548 board support powerpc: retire sbc8641d board support MAINTAINERS: update for Paul Gortmaker MAINTAINERS | 1 - arch/powerpc/boot/Makefile | 1 - arch/powerpc/boot/dts/fsl/sbc8641d.dts | 176 ----------------- arch/powerpc/boot/dts/sbc8548-altflash.dts | 111 ----------- arch/powerpc/boot/dts/sbc8548-post.dtsi | 289 ---------------------------- arch/powerpc/boot/dts/sbc8548-pre.dtsi | 48 ----- arch/powerpc/boot/dts/sbc8548.dts | 106 ---------- arch/powerpc/boot/wrapper | 2 +- arch/powerpc/configs/85xx/sbc8548_defconfig | 50 ----- arch/powerpc/configs/mpc85xx_base.config | 1 - arch/powerpc/configs/mpc86xx_base.config | 1 - arch/powerpc/configs/ppc6xx_defconfig | 1 - arch/powerpc/platforms/85xx/Kconfig | 6 - arch/powerpc/platforms/85xx/Makefile | 1 - arch/powerpc/platforms/85xx/sbc8548.c | 134 ------------- arch/powerpc/platforms/86xx/Kconfig | 8 +- arch/powerpc/platforms/86xx/Makefile | 1 - arch/powerpc/platforms/86xx/sbc8641d.c | 87 --------- 18 files changed, 2 insertions(+), 1022 deletions(-) delete mode 100644 arch/powerpc/boot/dts/fsl/sbc8641d.dts delete mode 100644 arch/powerpc/boot/dts/sbc8548-altflash.dts delete mode 100644 arch/powerpc/boot/dts/sbc8548-post.dtsi delete mode 100644 arch/powerpc/boot/dts/sbc8548-pre.dtsi delete mode 100644 arch/powerpc/boot/dts/sbc8548.dts delete mode 100644 arch/powerpc/configs/85xx/sbc8548_defconfig delete mode 100644 arch/powerpc/platforms/85xx/sbc8548.c delete mode 100644 arch/powerpc/platforms/86xx/sbc8641d.c