arch: remove blackfin port

The Analog Devices Blackfin port was added in 2007 and was rather
active for a while, but all work on it has come to a standstill
over time, as Analog have changed their product line-up.

Aaron Wu confirmed that the architecture port is no longer relevant,
and multiple people suggested removing blackfin independently because
of some of its oddities like a non-working SMP port, and the amount of
duplication between the chip variants, which cause extra work when
doing cross-architecture changes.

Link: https://docs.blackfin.uclinux.org/
Acked-by: Aaron Wu <Aaron.Wu@analog.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Mike Frysinger <vapier@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Documentation/00-INDEX

@@ -66,8 +66,6 @@ backlight/
 	- directory with info on controlling backlights in flat panel displays
 bcache.txt
 	- Block-layer cache on fast SSDs to improve slow (raid) I/O performance.
-blackfin/
-	- directory with documentation for the Blackfin arch.
 block/
 	- info on the Block I/O (BIO) layer.
 blockdev/

Documentation/admin-guide/kernel-parameters.rst

@@ -89,7 +89,6 @@ parameter is applicable::
 	APM	Advanced Power Management support is enabled.
 	ARM	ARM architecture is enabled.
 	AX25	Appropriate AX.25 support is enabled.
-	BLACKFIN Blackfin architecture is enabled.
 	CLK	Common clock infrastructure is enabled.
 	CMA	Contiguous Memory Area support is enabled.
 	DRM	Direct Rendering Management support is enabled.

Documentation/admin-guide/kernel-parameters.txt

@@ -1025,7 +1025,7 @@
 			address. The serial port must already be setup
 			and configured. Options are not yet supported.
 
-	earlyprintk=	[X86,SH,BLACKFIN,ARM,M68k,S390]
+	earlyprintk=	[X86,SH,ARM,M68k,S390]
 			earlyprintk=vga
 			earlyprintk=efi
 			earlyprintk=sclp

MAINTAINERS

@@ -2629,51 +2629,6 @@ F:	Documentation/filesystems/bfs.txt
 F:	fs/bfs/
 F:	include/uapi/linux/bfs_fs.h
 
-BLACKFIN ARCHITECTURE
-L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-T:	git git://git.code.sf.net/p/adi-linux/code
-W:	http://blackfin.uclinux.org
-S:	Orphan
-F:	arch/blackfin/
-
-BLACKFIN EMAC DRIVER
-L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W:	http://blackfin.uclinux.org
-S:	Orphan
-F:	drivers/net/ethernet/adi/
-
-BLACKFIN MEDIA DRIVER
-L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W:	http://blackfin.uclinux.org/
-S:	Orphan
-F:	drivers/media/platform/blackfin/
-F:	drivers/media/i2c/adv7183*
-F:	drivers/media/i2c/vs6624*
-
-BLACKFIN RTC DRIVER
-L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W:	http://blackfin.uclinux.org
-S:	Orphan
-F:	drivers/rtc/rtc-bfin.c
-
-BLACKFIN SDH DRIVER
-L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W:	http://blackfin.uclinux.org
-S:	Orphan
-F:	drivers/mmc/host/bfin_sdh.c
-
-BLACKFIN SERIAL DRIVER
-L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W:	http://blackfin.uclinux.org
-S:	Orphan
-F:	drivers/tty/serial/bfin_uart.c
-
-BLACKFIN WATCHDOG DRIVER
-L:	adi-buildroot-devel@lists.sourceforge.net (moderated for non-subscribers)
-W:	http://blackfin.uclinux.org
-S:	Orphan
-F:	drivers/watchdog/bfin_wdt.c
-
 BLINKM RGB LED DRIVER
 M:	Jan-Simon Moeller <jansimon.moeller@gmx.de>
 S:	Maintained