Merge tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pul removal of obsolete architecture ports from Arnd Bergmann:
 "This removes the entire architecture code for blackfin, cris, frv,
  m32r, metag, mn10300, score, and tile, including the associated device
  drivers.

  I have been working with the (former) maintainers for each one to
  ensure that my interpretation was right and the code is definitely
  unused in mainline kernels. Many had fond memories of working on the
  respective ports to start with and getting them included in upstream,
  but also saw no point in keeping the port alive without any users.

  In the end, it seems that while the eight architectures are extremely
  different, they all suffered the same fate: There was one company in
  charge of an SoC line, a CPU microarchitecture and a software
  ecosystem, which was more costly than licensing newer off-the-shelf
  CPU cores from a third party (typically ARM, MIPS, or RISC-V). It
  seems that all the SoC product lines are still around, but have not
  used the custom CPU architectures for several years at this point. In
  contrast, CPU instruction sets that remain popular and have actively
  maintained kernel ports tend to all be used across multiple licensees.

  [ See the new nds32 port merged in the previous commit for the next
    generation of "one company in charge of an SoC line, a CPU
    microarchitecture and a software ecosystem"   - Linus ]

  The removal came out of a discussion that is now documented at
  https://lwn.net/Articles/748074/. Unlike the original plans, I'm not
  marking any ports as deprecated but remove them all at once after I
  made sure that they are all unused. Some architectures (notably tile,
  mn10300, and blackfin) are still being shipped in products with old
  kernels, but those products will never be updated to newer kernel
  releases.

  After this series, we still have a few architectures without mainline
  gcc support:

   - unicore32 and hexagon both have very outdated gcc releases, but the
     maintainers promised to work on providing something newer. At least
     in case of hexagon, this will only be llvm, not gcc.

   - openrisc, risc-v and nds32 are still in the process of finishing
     their support or getting it added to mainline gcc in the first
     place. They all have patched gcc-7.3 ports that work to some
     degree, but complete upstream support won't happen before gcc-8.1.
     Csky posted their first kernel patch set last week, their situation
     will be similar

  [ Palmer Dabbelt points out that RISC-V support is in mainline gcc
    since gcc-7, although gcc-7.3.0 is the recommended minimum  - Linus ]"

This really says it all:

 2498 files changed, 95 insertions(+), 467668 deletions(-)

* tag 'arch-removal' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (74 commits)
  MAINTAINERS: UNICORE32: Change email account
  staging: iio: remove iio-trig-bfin-timer driver
  tty: hvc: remove tile driver
  tty: remove bfin_jtag_comm and hvc_bfin_jtag drivers
  serial: remove tile uart driver
  serial: remove m32r_sio driver
  serial: remove blackfin drivers
  serial: remove cris/etrax uart drivers
  usb: Remove Blackfin references in USB support
  usb: isp1362: remove blackfin arch glue
  usb: musb: remove blackfin port
  usb: host: remove tilegx platform glue
  pwm: remove pwm-bfin driver
  i2c: remove bfin-twi driver
  spi: remove blackfin related host drivers
  watchdog: remove bfin_wdt driver
  can: remove bfin_can driver
  mmc: remove bfin_sdh driver
  input: misc: remove blackfin rotary driver
  input: keyboard: remove bf54x driver
  ...

1 files changed, 0 insertions, 71 deletions

diff --git a/arch/mn10300/include/asm/intctl-regs.h b/arch/mn10300/include/asm/intctl-regs.h
deleted file mode 100644
index d65bbeebe50a..000000000000
--- a/arch/mn10300/include/asm/intctl-regs.h
+++ /dev/null
@@ -1,71 +0,0 @@
-/* MN10300 On-board interrupt controller registers
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#ifndef _ASM_INTCTL_REGS_H
-#define _ASM_INTCTL_REGS_H
-
-#include <asm/cpu-regs.h>
-
-#ifdef __KERNEL__
-
-/*
- * Interrupt controller registers
- * - Registers 64-191 are at addresses offset from the main array
- */
-#define GxICR(X)						\
-	__SYSREG(0xd4000000 + (X) * 4 +				\
-		 (((X) >= 64) && ((X) < 192)) * 0xf00, u16)
-
-#define GxICR_u8(X)							\
-	__SYSREG(0xd4000000 + (X) * 4 +					\
-		 (((X) >= 64) && ((X) < 192)) * 0xf00, u8)
-
-#include <proc/intctl-regs.h>
-
-#define XIRQ_TRIGGER_LOWLEVEL	0
-#define XIRQ_TRIGGER_HILEVEL	1
-#define XIRQ_TRIGGER_NEGEDGE	2
-#define XIRQ_TRIGGER_POSEDGE	3
-
-/* non-maskable interrupt control */
-#define NMIIRQ			0
-#define NMICR			GxICR(NMIIRQ)	/* NMI control register */
-#define NMICR_NMIF		0x0001		/* NMI pin interrupt flag */
-#define NMICR_WDIF		0x0002		/* watchdog timer overflow flag */
-#define NMICR_ABUSERR		0x0008		/* async bus error flag */
-
-/* maskable interrupt control */
-#define GxICR_DETECT		0x0001		/* interrupt detect flag */
-#define GxICR_REQUEST		0x0010		/* interrupt request flag */
-#define GxICR_ENABLE		0x0100		/* interrupt enable flag */
-#define GxICR_LEVEL		0x7000		/* interrupt priority level */
-#define GxICR_LEVEL_0		0x0000		/* - level 0 */
-#define GxICR_LEVEL_1		0x1000		/* - level 1 */
-#define GxICR_LEVEL_2		0x2000		/* - level 2 */
-#define GxICR_LEVEL_3		0x3000		/* - level 3 */
-#define GxICR_LEVEL_4		0x4000		/* - level 4 */
-#define GxICR_LEVEL_5		0x5000		/* - level 5 */
-#define GxICR_LEVEL_6		0x6000		/* - level 6 */
-#define GxICR_LEVEL_SHIFT	12
-#define GxICR_NMI		0x8000		/* nmi request flag */
-
-#define NUM2GxICR_LEVEL(num)	((num) << GxICR_LEVEL_SHIFT)
-
-#ifndef __ASSEMBLY__
-extern void set_intr_level(int irq, u16 level);
-extern void mn10300_set_lateack_irq_type(int irq);
-#endif
-
-/* external interrupts */
-#define XIRQxICR(X)		GxICR((X))	/* external interrupt control regs */
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_INTCTL_REGS_H */