[PATCH 00/13] ARM: mark most boards as unused

[PATCH 00/13] ARM: mark most boards as unused

[Arnd Bergmann]

From: Arnd Bergmann <arnd@arndb.de>

Based on the recent mailing list discussion I started [1], 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.

Please double-check the lists for each platform to make sure I got the
right set. The only functional change here is in the Kconfig dependencies,
so I would still apply this as a late fix for the coming merge window,
to give any remaining users the most time to run into this and speak up
in case any of these boards are actually still in use.

    Arnd

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

Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Alexander Sverdlin <alexander.sverdlin@gmail.com>
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Bartosz Golaszewski <brgl@bgdev.pl>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Daniel Mack <daniel@zonque.org>
Cc: Gregory Clement <gregory.clement@bootlin.com>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Janusz Krzysztofik <jmkrzyszt@gmail.com>
Cc: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Cc: Krzysztof Halasa <khalasa@piap.pl>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Laurence de Bruxelles <lfdebrux@gmail.com>
Cc: Lennert Buytenhek <buytenh@wantstofly.org>
Cc: Linus Walleij <linusw@kernel.org>
Cc: Lubomir Rintel <lkundrak@v3.sk>
Cc: Lukasz Majewski <lukma@denx.de>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Mauri Sandberg <maukka@ext.kapsi.fi>
Cc: Nikita Shubin <nikita.shubin@maquefel.me>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: linux-omap@vger.kernel.org
Cc: linux-samsung-soc@vger.kernel.org

Arnd Bergmann (13):
  ARM: add ATAGS dependencies to non-DT platforms
  ARM: add CONFIG_UNUSED_BOARD_FILES
  ARM: pxa: add Kconfig dependencies for ATAGS based boards
  ARM: orion: add ATAGS dependencies
  ARM: davinci: mark all ATAGS board files as unused
  ARM: ep93xx: mark most board files as unused
  ARM: mmp: mark all board files for removal
  ARM: footbridge: mark cats board for removal
  ARM: sa1100: mark most boards as unused
  ARM: omap1: add Kconfig dependencies for unused boards
  ARM: s3c: mark most board files as unused
  ARM: iop32x: mark as unused
  ARM: cns3xxx: add CONFIG_UNUSED_BOARD_FILES dependency

 arch/arm/Kconfig                          | 21 ++++++-
 arch/arm/configs/badge4_defconfig         |  1 +
 arch/arm/configs/cerfcube_defconfig       |  1 +
 arch/arm/configs/cm_x300_defconfig        |  1 +
 arch/arm/configs/cns3420vb_defconfig      |  1 +
 arch/arm/configs/colibri_pxa270_defconfig |  1 +
 arch/arm/configs/colibri_pxa300_defconfig |  1 +
 arch/arm/configs/corgi_defconfig          |  1 +
 arch/arm/configs/davinci_all_defconfig    | 11 ----
 arch/arm/configs/ep93xx_defconfig         |  9 ---
 arch/arm/configs/eseries_pxa_defconfig    |  1 +
 arch/arm/configs/ezx_defconfig            |  1 +
 arch/arm/configs/footbridge_defconfig     |  1 -
 arch/arm/configs/h5000_defconfig          |  1 +
 arch/arm/configs/hackkit_defconfig        |  1 +
 arch/arm/configs/iop32x_defconfig         |  1 +
 arch/arm/configs/jornada720_defconfig     |  1 +
 arch/arm/configs/lart_defconfig           |  1 +
 arch/arm/configs/lpd270_defconfig         |  1 +
 arch/arm/configs/lubbock_defconfig        |  1 +
 arch/arm/configs/magician_defconfig       |  1 +
 arch/arm/configs/mainstone_defconfig      |  1 +
 arch/arm/configs/mini2440_defconfig       |  1 +
 arch/arm/configs/mmp2_defconfig           |  5 +-
 arch/arm/configs/multi_v5_defconfig       | 17 -----
 arch/arm/configs/mv78xx0_defconfig        |  1 +
 arch/arm/configs/mvebu_v5_defconfig       |  8 ---
 arch/arm/configs/omap1_defconfig          |  9 ---
 arch/arm/configs/orion5x_defconfig        | 13 ----
 arch/arm/configs/palmz72_defconfig        |  1 +
 arch/arm/configs/pcm027_defconfig         |  1 +
 arch/arm/configs/pleb_defconfig           |  1 +
 arch/arm/configs/pxa255-idp_defconfig     |  1 +
 arch/arm/configs/pxa3xx_defconfig         |  7 +--
 arch/arm/configs/pxa_defconfig            | 77 ++++-------------------
 arch/arm/configs/s3c2410_defconfig        |  1 +
 arch/arm/configs/s3c6400_defconfig        |  9 ---
 arch/arm/configs/shannon_defconfig        |  1 +
 arch/arm/configs/simpad_defconfig         |  1 +
 arch/arm/configs/tct_hammer_defconfig     |  1 +
 arch/arm/configs/trizeps4_defconfig       |  1 +
 arch/arm/configs/viper_defconfig          |  1 +
 arch/arm/configs/xcep_defconfig           |  1 +
 arch/arm/configs/zeus_defconfig           |  1 +
 arch/arm/mach-cns3xxx/Kconfig             |  1 +
 arch/arm/mach-davinci/Kconfig             |  8 +++
 arch/arm/mach-dove/Kconfig                |  1 +
 arch/arm/mach-ep93xx/Kconfig              | 10 +++
 arch/arm/mach-footbridge/Kconfig          |  1 +
 arch/arm/mach-iop32x/Kconfig              |  1 +
 arch/arm/mach-mmp/Kconfig                 |  9 +++
 arch/arm/mach-mv78xx0/Kconfig             |  1 +
 arch/arm/mach-omap1/Kconfig               | 11 ++++
 arch/arm/mach-orion5x/Kconfig             | 17 +++++
 arch/arm/mach-pxa/Kconfig                 | 53 ++++++++++++++++
 arch/arm/mach-s3c/Kconfig.s3c24xx         |  2 +-
 arch/arm/mach-s3c/Kconfig.s3c64xx         | 20 +++---
 arch/arm/mach-sa1100/Kconfig              | 11 ++++
 58 files changed, 199 insertions(+), 166 deletions(-)

-- 
2.29.2

[PATCH 11/13] ARM: s3c: mark most board files as unused

[Arnd Bergmann]

From: Arnd Bergmann <arnd@arndb.de>

The s3c24xx platform is already scheduled for removal in early 2023,
with s3c64xx meeting the same fate a year later.

Most of the s3c64xx board files appear to be unused, as the better
maintained ones already got converted to DT. The main exception is
the Wolfson Cragganmore board, which remains in use as the reference
design for Wolfson/Cirrus devices. As the other boards get removed,
this one stays around along with the DT based machines.

The s3c6400_defconfig file now disables the unused boards, while the
s3c24xx defconfig files all turn on CONFIG_UNUSED_BOARD_FILES to
remain usable.

Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/configs/mini2440_defconfig   |  1 +
 arch/arm/configs/s3c2410_defconfig    |  1 +
 arch/arm/configs/s3c6400_defconfig    |  9 ---------
 arch/arm/configs/tct_hammer_defconfig |  1 +
 arch/arm/mach-s3c/Kconfig.s3c24xx     |  2 +-
 arch/arm/mach-s3c/Kconfig.s3c64xx     | 20 ++++++++++----------
 6 files changed, 14 insertions(+), 20 deletions(-)

diff --git a/arch/arm/configs/mini2440_defconfig b/arch/arm/configs/mini2440_defconfig
index 5b4ab5bf5c5f..86e00f684e16 100644
--- a/arch/arm/configs/mini2440_defconfig
+++ b/arch/arm/configs/mini2440_defconfig
@@ -11,6 +11,7 @@ CONFIG_S3C_ADC=y
 CONFIG_CPU_S3C2440=y
 CONFIG_MACH_MINI2440=y
 CONFIG_AEABI=y
+CONFIG_UNUSED_BOARD_FILES=y
 CONFIG_KEXEC=y
 CONFIG_CPU_IDLE=y
 CONFIG_APM_EMULATION=y
diff --git a/arch/arm/configs/s3c2410_defconfig b/arch/arm/configs/s3c2410_defconfig
index 2789e96e4ef6..41b40863a78e 100644
--- a/arch/arm/configs/s3c2410_defconfig
+++ b/arch/arm/configs/s3c2410_defconfig
@@ -37,6 +37,7 @@ CONFIG_ARCH_S3C2440=y
 CONFIG_MACH_NEO1973_GTA02=y
 CONFIG_MACH_RX1950=y
 CONFIG_MACH_SMDK2443=y
+CONFIG_UNUSED_BOARD_FILES=y
 CONFIG_CMDLINE="root=/dev/hda1 ro init=/bin/bash console=ttySAC0"
 CONFIG_FPE_NWFPE=y
 CONFIG_FPE_NWFPE_XP=y
diff --git a/arch/arm/configs/s3c6400_defconfig b/arch/arm/configs/s3c6400_defconfig
index 300f5a7febf0..4f04f583c738 100644
--- a/arch/arm/configs/s3c6400_defconfig
+++ b/arch/arm/configs/s3c6400_defconfig
@@ -5,15 +5,6 @@ CONFIG_KALLSYMS_ALL=y
 CONFIG_ARCH_MULTI_V6=y
 # CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_S3C64XX=y
-CONFIG_MACH_SMDK6400=y
-CONFIG_MACH_ANW6410=y
-CONFIG_MACH_MINI6410=y
-CONFIG_MACH_REAL6410=y
-CONFIG_MACH_SMDK6410=y
-CONFIG_MACH_NCP=y
-CONFIG_MACH_HMT=y
-CONFIG_MACH_SMARTQ5=y
-CONFIG_MACH_SMARTQ7=y
 CONFIG_MACH_WLF_CRAGG_6410=y
 CONFIG_CMDLINE="console=ttySAC0,115200 root=/dev/ram init=/linuxrc initrd=0x51000000,6M ramdisk_size=6144"
 CONFIG_VFP=y
diff --git a/arch/arm/configs/tct_hammer_defconfig b/arch/arm/configs/tct_hammer_defconfig
index ce95cc97dcac..3b29ae1fb750 100644
--- a/arch/arm/configs/tct_hammer_defconfig
+++ b/arch/arm/configs/tct_hammer_defconfig
@@ -13,6 +13,7 @@ CONFIG_ARCH_MULTI_V4T=y
 # CONFIG_ARCH_MULTI_V7 is not set
 CONFIG_ARCH_S3C24XX=y
 CONFIG_MACH_TCT_HAMMER=y
+CONFIG_UNUSED_BOARD_FILES=y
 CONFIG_CMDLINE="mem=64M root=/dev/ram0 init=/linuxrc rw"
 CONFIG_FPE_NWFPE=y
 CONFIG_MODULES=y
diff --git a/arch/arm/mach-s3c/Kconfig.s3c24xx b/arch/arm/mach-s3c/Kconfig.s3c24xx
index 88a5a333312a..c28e75424947 100644
--- a/arch/arm/mach-s3c/Kconfig.s3c24xx
+++ b/arch/arm/mach-s3c/Kconfig.s3c24xx
@@ -8,7 +8,7 @@ menuconfig ARCH_S3C24XX
 	bool "Samsung S3C24XX SoCs (deprecated, see help)"
 	depends on ARCH_MULTI_V4T || ARCH_MULTI_V5
 	depends on CPU_LITTLE_ENDIAN
-	depends on ATAGS
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select CLKSRC_SAMSUNG_PWM
 	select GPIO_SAMSUNG
 	select GPIOLIB
diff --git a/arch/arm/mach-s3c/Kconfig.s3c64xx b/arch/arm/mach-s3c/Kconfig.s3c64xx
index 2b27bff4d928..46f4fd795de5 100644
--- a/arch/arm/mach-s3c/Kconfig.s3c64xx
+++ b/arch/arm/mach-s3c/Kconfig.s3c64xx
@@ -114,8 +114,8 @@ config S3C64XX_SETUP_USB_PHY
 # S36400 Macchine support
 
 config MACH_SMDK6400
-       bool "SMDK6400"
-	depends on ATAGS
+	bool "SMDK6400"
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select CPU_S3C6400
 	select S3C64XX_SETUP_SDHCI
 	select S3C_DEV_HSMMC1
@@ -126,7 +126,7 @@ config MACH_SMDK6400
 
 config MACH_ANW6410
 	bool "A&W6410"
-	depends on ATAGS
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select CPU_S3C6410
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C_DEV_FB
@@ -135,7 +135,7 @@ config MACH_ANW6410
 
 config MACH_MINI6410
 	bool "MINI6410"
-	depends on ATAGS
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select CPU_S3C6410
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C64XX_SETUP_SDHCI
@@ -151,7 +151,7 @@ config MACH_MINI6410
 
 config MACH_REAL6410
 	bool "REAL6410"
-	depends on ATAGS
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select CPU_S3C6410
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C64XX_SETUP_SDHCI
@@ -167,7 +167,7 @@ config MACH_REAL6410
 
 config MACH_SMDK6410
 	bool "SMDK6410"
-	depends on ATAGS
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select CPU_S3C6410
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C64XX_SETUP_I2C1
@@ -254,7 +254,7 @@ config SMDK6410_WM1192_EV1
 
 config MACH_NCP
 	bool "NCP"
-	depends on ATAGS
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select CPU_S3C6410
 	select S3C64XX_SETUP_I2C1
 	select S3C_DEV_HSMMC1
@@ -264,7 +264,7 @@ config MACH_NCP
 
 config MACH_HMT
 	bool "Airgoo HMT"
-	depends on ATAGS
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select CPU_S3C6410
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C_DEV_FB
@@ -296,14 +296,14 @@ config MACH_SMARTQ
 
 config MACH_SMARTQ5
 	bool "SmartQ 5"
-	depends on ATAGS
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select MACH_SMARTQ
 	help
 	    Machine support for the SmartQ 5
 
 config MACH_SMARTQ7
 	bool "SmartQ 7"
-	depends on ATAGS
+	depends on ATAGS && UNUSED_BOARD_FILES
 	select MACH_SMARTQ
 	help
 	    Machine support for the SmartQ 7
-- 
2.29.2

Re: [PATCH 11/13] ARM: s3c: mark most board files as unused

[Krzysztof Kozlowski]

On 21/07/2022 16:17, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> The s3c24xx platform is already scheduled for removal in early 2023,
> with s3c64xx meeting the same fate a year later.
> 
> Most of the s3c64xx board files appear to be unused, as the better
> maintained ones already got converted to DT. The main exception is
> the Wolfson Cragganmore board, which remains in use as the reference
> design for Wolfson/Cirrus devices. As the other boards get removed,
> this one stays around along with the DT based machines.
> 
> The s3c6400_defconfig file now disables the unused boards, while the
> s3c24xx defconfig files all turn on CONFIG_UNUSED_BOARD_FILES to
> remain usable.
> 

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof