Merge tag 'arm-boardfiles-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM boardfile deprecation from Arnd Bergmann:
 "Over the past ten years, new machine support was based on device tree,
  and an initial set of about 400 boards using ATAGS with boardfile for
  booting were grandfathered in, with about half of them either removed
  or converted to DT over time.

  Based on the recent mailing list discussion I started, I have now
  turned the findings into a set of patches that marks most board files
  as 'depends on UNUSED_BOARD_FILES', leaving only 38 of the 196 boards.

  For the boards that are marked as unused, there are two final chances
  for potential users: The removal is scheduled to take place after the
  longterm stable kernel at the end of 2022, so users can stay on that
  version for another few years, and if anyone still has one of these
  machines and is planning to keep updating kernels beyond that version,
  they can speak up now to have their boards taken off the list again.

  Waiting for the LTS release also makes sure that there will be at
  least one longterm kernel that contains the recent multiplatform
  conversion along while still supporting all legacy boards.

  The short summary of the current status is:

   - The s3c24xx, cns3xxx, iop32x and mv78xx0 platforms have no known
     users and will be removed entirely.

   - The mmp and davinci platforms have DT support for the important
     machines and will become DT-only after this.

   - s3c64xx, dove, orion5x, and pxa keep some board files to allow
     those to be migrated over to DT more easily, but most board files
     are getting removed now. DT support on these platforms is partially
     working but requires changes to additional drivers for the other
     boards.

   - omap1, ep93xx, sa1100, footbridge and rpc have no DT support at the
     moment but have some boards with known users. Removing the board
     files that nobody uses should make it easier to try a DT conversion
     if anyone cares.

  There is no explicit timeline what happens with the boards that remain
  after this removal, but I expect to revisit this in the future, and
  with most boards gone, there will be a good time to do a treewide
  review of platform drivers that never gained DT support and have no
  remaining in-tree board files"

Link: https://lore.kernel.org/linux-arm-kernel/CAK8P3a0Z9vGEQbVRBo84bSyPFM-LF+hs5w8ZA51g2Z+NsdtDQA@mail.gmail.com/

* tag 'arm-boardfiles-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: cns3xxx: add CONFIG_UNUSED_BOARD_FILES dependency
  ARM: iop32x: mark as unused
  ARM: s3c: mark most board files as unused
  ARM: omap1: add Kconfig dependencies for unused boards
  ARM: sa1100: mark most boards as unused
  ARM: footbridge: mark cats board for removal
  ARM: mmp: mark all board files for removal
  ARM: ep93xx: mark most board files as unused
  ARM: davinci: mark all ATAGS board files as unused
  ARM: orion: add ATAGS dependencies
  ARM: pxa: add Kconfig dependencies for ATAGS based boards
  ARM: add CONFIG_UNUSED_BOARD_FILES
  ARM: add ATAGS dependencies to non-DT platforms

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 95ca60649c34..c8cbd9a30791 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -21,12 +21,14 @@ comment "DaVinci Core Type"
 
 config ARCH_DAVINCI_DM355
 	bool "DaVinci 355 based system"
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select DAVINCI_AINTC
 	select ARCH_DAVINCI_DMx
 
 config ARCH_DAVINCI_DA830
 	bool "DA830/OMAP-L137/AM17x based system"
 	depends on !ARCH_DAVINCI_DMx || (AUTO_ZRELADDR && ARM_PATCH_PHYS_VIRT)
+	depends on ATAGS
 	select ARCH_DAVINCI_DA8XX
 	# needed on silicon revs 1.0, 1.1:
 	select CPU_DCACHE_WRITETHROUGH if !CPU_DCACHE_DISABLE
@@ -35,6 +37,7 @@ config ARCH_DAVINCI_DA830
 config ARCH_DAVINCI_DA850
 	bool "DA850/OMAP-L138/AM18x based system"
 	depends on !ARCH_DAVINCI_DMx || (AUTO_ZRELADDR && ARM_PATCH_PHYS_VIRT)
+	depends on ATAGS
 	select ARCH_DAVINCI_DA8XX
 	select DAVINCI_CP_INTC
 
@@ -43,6 +46,7 @@ config ARCH_DAVINCI_DA8XX
 
 config ARCH_DAVINCI_DM365
 	bool "DaVinci 365 based system"
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select DAVINCI_AINTC
 	select ARCH_DAVINCI_DMx
 
@@ -83,6 +87,7 @@ config MACH_DAVINCI_DM365_EVM
 config MACH_DAVINCI_DA830_EVM
 	bool "TI DA830/OMAP-L137/AM17x Reference Platform"
 	default ARCH_DAVINCI_DA830
+	depends on ATAGS && UNUSED_BOARD_FILES
 	depends on ARCH_DAVINCI_DA830
 	select GPIO_PCF857X if I2C
 	help
@@ -112,6 +117,7 @@ endchoice
 
 config MACH_DAVINCI_DA850_EVM
 	bool "TI DA850/OMAP-L138/AM18x Reference Platform"
+	depends on ATAGS && UNUSED_BOARD_FILES
 	default ARCH_DAVINCI_DA850
 	depends on ARCH_DAVINCI_DA850
 	help
@@ -153,6 +159,7 @@ endchoice
 config MACH_MITYOMAPL138
 	bool "Critical Link MityDSP-L138/MityARM-1808 SoM"
 	depends on ARCH_DAVINCI_DA850
+	depends on ATAGS && UNUSED_BOARD_FILES
 	help
 	  Say Y here to select the Critical Link MityDSP-L138/MityARM-1808
 	  System on Module.  Information on this SoM may be found at
@@ -161,6 +168,7 @@ config MACH_MITYOMAPL138
 config MACH_OMAPL138_HAWKBOARD
 	bool "TI AM1808 / OMAPL-138 Hawkboard platform"
 	depends on ARCH_DAVINCI_DA850
+	depends on ATAGS && UNUSED_BOARD_FILES
 	help
 	  Say Y here to select the TI AM1808 / OMAPL-138 Hawkboard platform .