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   - unicore32 and hexagon both have very outdated gcc releases, but the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, 337 deletions

diff --git a/arch/blackfin/include/asm/gptimers.h b/arch/blackfin/include/asm/gptimers.h
deleted file mode 100644
index 381e3d621a4c..000000000000
--- a/arch/blackfin/include/asm/gptimers.h
+++ /dev/null
@@ -1,337 +0,0 @@
-/*
- * gptimers.h - Blackfin General Purpose Timer structs/defines/prototypes
- *
- * Copyright (c) 2005-2008 Analog Devices Inc.
- * Copyright (C) 2005 John DeHority
- * Copyright (C) 2006 Hella Aglaia GmbH (awe@aglaia-gmbh.de)
- *
- * Licensed under the GPL-2.
- */
-
-#ifndef _BLACKFIN_TIMERS_H_
-#define _BLACKFIN_TIMERS_H_
-
-#include <linux/types.h>
-#include <asm/blackfin.h>
-
-/*
- * BF51x/BF52x/BF537: 8 timers:
- */
-#if defined(CONFIG_BF51x) || defined(CONFIG_BF52x) || defined(BF537_FAMILY)
-# define MAX_BLACKFIN_GPTIMERS 8
-# define TIMER0_GROUP_REG      TIMER_ENABLE
-#endif
-/*
- * BF54x: 11 timers (BF542: 8 timers):
- */
-#if defined(CONFIG_BF54x)
-# ifdef CONFIG_BF542
-#  define MAX_BLACKFIN_GPTIMERS 8
-# else
-#  define MAX_BLACKFIN_GPTIMERS 11
-#  define TIMER8_GROUP_REG      TIMER_ENABLE1
-#  define TIMER_GROUP2          1
-# endif
-# define TIMER0_GROUP_REG       TIMER_ENABLE0
-#endif
-/*
- * BF561: 12 timers:
- */
-#if defined(CONFIG_BF561)
-# define MAX_BLACKFIN_GPTIMERS 12
-# define TIMER0_GROUP_REG      TMRS8_ENABLE
-# define TIMER8_GROUP_REG      TMRS4_ENABLE
-# define TIMER_GROUP2          1
-#endif
-/*
- * BF609: 8 timers:
- */
-#if defined(CONFIG_BF60x)
-# define MAX_BLACKFIN_GPTIMERS 8
-# define TIMER0_GROUP_REG     TIMER_RUN
-#endif
-/*
- * All others: 3 timers:
- */
-#define TIMER_GROUP1           0
-#if !defined(MAX_BLACKFIN_GPTIMERS)
-# define MAX_BLACKFIN_GPTIMERS 3
-# define TIMER0_GROUP_REG      TIMER_ENABLE
-#endif
-
-#define BLACKFIN_GPTIMER_IDMASK ((1UL << MAX_BLACKFIN_GPTIMERS) - 1)
-#define BFIN_TIMER_OCTET(x) ((x) >> 3)
-
-/* used in masks for timer_enable() and timer_disable() */
-#define TIMER0bit  0x0001  /*  0001b */
-#define TIMER1bit  0x0002  /*  0010b */
-#define TIMER2bit  0x0004  /*  0100b */
-#define TIMER3bit  0x0008
-#define TIMER4bit  0x0010
-#define TIMER5bit  0x0020
-#define TIMER6bit  0x0040
-#define TIMER7bit  0x0080
-#define TIMER8bit  0x0100
-#define TIMER9bit  0x0200
-#define TIMER10bit 0x0400
-#define TIMER11bit 0x0800
-
-#define TIMER0_id   0
-#define TIMER1_id   1
-#define TIMER2_id   2
-#define TIMER3_id   3
-#define TIMER4_id   4
-#define TIMER5_id   5
-#define TIMER6_id   6
-#define TIMER7_id   7
-#define TIMER8_id   8
-#define TIMER9_id   9
-#define TIMER10_id 10
-#define TIMER11_id 11
-
-/* associated timers for ppi framesync: */
-
-#if defined(CONFIG_BF561)
-# define FS0_1_TIMER_ID   TIMER8_id
-# define FS0_2_TIMER_ID   TIMER9_id
-# define FS1_1_TIMER_ID   TIMER10_id
-# define FS1_2_TIMER_ID   TIMER11_id
-# define FS0_1_TIMER_BIT  TIMER8bit
-# define FS0_2_TIMER_BIT  TIMER9bit
-# define FS1_1_TIMER_BIT  TIMER10bit
-# define FS1_2_TIMER_BIT  TIMER11bit
-# undef FS1_TIMER_ID
-# undef FS2_TIMER_ID
-# undef FS1_TIMER_BIT
-# undef FS2_TIMER_BIT
-#else
-# define FS1_TIMER_ID  TIMER0_id
-# define FS2_TIMER_ID  TIMER1_id
-# define FS1_TIMER_BIT TIMER0bit
-# define FS2_TIMER_BIT TIMER1bit
-#endif
-
-#ifdef CONFIG_BF60x
-/*
- * Timer Configuration Register Bits
- */
-#define TIMER_EMU_RUN       0x8000
-#define TIMER_BPER_EN       0x4000
-#define TIMER_BWID_EN       0x2000
-#define TIMER_BDLY_EN       0x1000
-#define TIMER_OUT_DIS       0x0800
-#define TIMER_TIN_SEL       0x0400
-#define TIMER_CLK_SEL       0x0300
-#define TIMER_CLK_SCLK      0x0000
-#define TIMER_CLK_ALT_CLK0  0x0100
-#define TIMER_CLK_ALT_CLK1  0x0300
-#define TIMER_PULSE_HI 	    0x0080
-#define TIMER_SLAVE_TRIG    0x0040
-#define TIMER_IRQ_MODE      0x0030
-#define TIMER_IRQ_ACT_EDGE  0x0000
-#define TIMER_IRQ_DLY       0x0010
-#define TIMER_IRQ_WID_DLY   0x0020
-#define TIMER_IRQ_PER       0x0030
-#define TIMER_MODE          0x000f
-#define TIMER_MODE_WDOG_P   0x0008
-#define TIMER_MODE_WDOG_W   0x0009
-#define TIMER_MODE_PWM_CONT 0x000c
-#define TIMER_MODE_PWM      0x000d
-#define TIMER_MODE_WDTH     0x000a
-#define TIMER_MODE_WDTH_D   0x000b
-#define TIMER_MODE_EXT_CLK  0x000e
-#define TIMER_MODE_PININT   0x000f
-
-/*
- * Timer Status Register Bits
- */
-#define TIMER_STATUS_TIMIL0  0x0001
-#define TIMER_STATUS_TIMIL1  0x0002
-#define TIMER_STATUS_TIMIL2  0x0004
-#define TIMER_STATUS_TIMIL3  0x0008
-#define TIMER_STATUS_TIMIL4  0x0010
-#define TIMER_STATUS_TIMIL5  0x0020
-#define TIMER_STATUS_TIMIL6  0x0040
-#define TIMER_STATUS_TIMIL7  0x0080
-
-#define TIMER_STATUS_TOVF0   0x0001	/* timer 0 overflow error */
-#define TIMER_STATUS_TOVF1   0x0002
-#define TIMER_STATUS_TOVF2   0x0004
-#define TIMER_STATUS_TOVF3   0x0008
-#define TIMER_STATUS_TOVF4   0x0010
-#define TIMER_STATUS_TOVF5   0x0020
-#define TIMER_STATUS_TOVF6   0x0040
-#define TIMER_STATUS_TOVF7   0x0080
-
-/*
- * Timer Slave Enable Status : write 1 to clear
- */
-#define TIMER_STATUS_TRUN0  0x0001
-#define TIMER_STATUS_TRUN1  0x0002
-#define TIMER_STATUS_TRUN2  0x0004
-#define TIMER_STATUS_TRUN3  0x0008
-#define TIMER_STATUS_TRUN4  0x0010
-#define TIMER_STATUS_TRUN5  0x0020
-#define TIMER_STATUS_TRUN6  0x0040
-#define TIMER_STATUS_TRUN7  0x0080
-
-#else
-
-/*
- * Timer Configuration Register Bits
- */
-#define TIMER_ERR           0xC000
-#define TIMER_ERR_OVFL      0x4000
-#define TIMER_ERR_PROG_PER  0x8000
-#define TIMER_ERR_PROG_PW   0xC000
-#define TIMER_EMU_RUN       0x0200
-#define TIMER_TOGGLE_HI     0x0100
-#define TIMER_CLK_SEL       0x0080
-#define TIMER_OUT_DIS       0x0040
-#define TIMER_TIN_SEL       0x0020
-#define TIMER_IRQ_ENA       0x0010
-#define TIMER_PERIOD_CNT    0x0008
-#define TIMER_PULSE_HI      0x0004
-#define TIMER_MODE          0x0003
-#define TIMER_MODE_PWM      0x0001
-#define TIMER_MODE_WDTH     0x0002
-#define TIMER_MODE_EXT_CLK  0x0003
-
-/*
- * Timer Status Register Bits
- */
-#define TIMER_STATUS_TIMIL0  0x0001
-#define TIMER_STATUS_TIMIL1  0x0002
-#define TIMER_STATUS_TIMIL2  0x0004
-#define TIMER_STATUS_TIMIL3  0x00000008
-#define TIMER_STATUS_TIMIL4  0x00010000
-#define TIMER_STATUS_TIMIL5  0x00020000
-#define TIMER_STATUS_TIMIL6  0x00040000
-#define TIMER_STATUS_TIMIL7  0x00080000
-#define TIMER_STATUS_TIMIL8  0x0001
-#define TIMER_STATUS_TIMIL9  0x0002
-#define TIMER_STATUS_TIMIL10 0x0004
-#define TIMER_STATUS_TIMIL11 0x0008
-
-#define TIMER_STATUS_TOVF0   0x0010	/* timer 0 overflow error */
-#define TIMER_STATUS_TOVF1   0x0020
-#define TIMER_STATUS_TOVF2   0x0040
-#define TIMER_STATUS_TOVF3   0x00000080
-#define TIMER_STATUS_TOVF4   0x00100000
-#define TIMER_STATUS_TOVF5   0x00200000
-#define TIMER_STATUS_TOVF6   0x00400000
-#define TIMER_STATUS_TOVF7   0x00800000
-#define TIMER_STATUS_TOVF8   0x0010
-#define TIMER_STATUS_TOVF9   0x0020
-#define TIMER_STATUS_TOVF10  0x0040
-#define TIMER_STATUS_TOVF11  0x0080
-
-/*
- * Timer Slave Enable Status : write 1 to clear
- */
-#define TIMER_STATUS_TRUN0  0x1000
-#define TIMER_STATUS_TRUN1  0x2000
-#define TIMER_STATUS_TRUN2  0x4000
-#define TIMER_STATUS_TRUN3  0x00008000
-#define TIMER_STATUS_TRUN4  0x10000000
-#define TIMER_STATUS_TRUN5  0x20000000
-#define TIMER_STATUS_TRUN6  0x40000000
-#define TIMER_STATUS_TRUN7  0x80000000
-#define TIMER_STATUS_TRUN   0xF000F000
-#define TIMER_STATUS_TRUN8  0x1000
-#define TIMER_STATUS_TRUN9  0x2000
-#define TIMER_STATUS_TRUN10 0x4000
-#define TIMER_STATUS_TRUN11 0x8000
-
-#endif
-
-/* The actual gptimer API */
-
-void     set_gptimer_pwidth(unsigned int timer_id, uint32_t width);
-uint32_t get_gptimer_pwidth(unsigned int timer_id);
-void     set_gptimer_period(unsigned int timer_id, uint32_t period);
-uint32_t get_gptimer_period(unsigned int timer_id);
-#ifdef CONFIG_BF60x
-void     set_gptimer_delay(unsigned int timer_id, uint32_t delay);
-uint32_t get_gptimer_delay(unsigned int timer_id);
-#endif
-uint32_t get_gptimer_count(unsigned int timer_id);
-int      get_gptimer_intr(unsigned int timer_id);
-void     clear_gptimer_intr(unsigned int timer_id);
-int      get_gptimer_over(unsigned int timer_id);
-void     clear_gptimer_over(unsigned int timer_id);
-void     set_gptimer_config(unsigned int timer_id, uint16_t config);
-uint16_t get_gptimer_config(unsigned int timer_id);
-int      get_gptimer_run(unsigned int timer_id);
-void     set_gptimer_pulse_hi(unsigned int timer_id);
-void     clear_gptimer_pulse_hi(unsigned int timer_id);
-void     enable_gptimers(uint16_t mask);
-void     disable_gptimers(uint16_t mask);
-void     disable_gptimers_sync(uint16_t mask);
-uint16_t get_enabled_gptimers(void);
-uint32_t get_gptimer_status(unsigned int group);
-void     set_gptimer_status(unsigned int group, uint32_t value);
-
-static inline void enable_gptimer(unsigned int timer_id)
-{
-	enable_gptimers(1 << timer_id);
-}
-
-static inline void disable_gptimer(unsigned int timer_id)
-{
-	disable_gptimers(1 << timer_id);
-}
-
-/*
- * All Blackfin system MMRs are padded to 32bits even if the register
- * itself is only 16bits.  So use a helper macro to streamline this.
- */
-#define __BFP(m) u16 m; u16 __pad_##m
-
-/*
- * bfin timer registers layout
- */
-struct bfin_gptimer_regs {
-	__BFP(config);
-	u32 counter;
-	u32 period;
-	u32 width;
-#ifdef CONFIG_BF60x
-	u32 delay;
-#endif
-};
-
-/*
- * bfin group timer registers layout
- */
-#ifndef CONFIG_BF60x
-struct bfin_gptimer_group_regs {
-	__BFP(enable);
-	__BFP(disable);
-	u32 status;
-};
-#else
-struct bfin_gptimer_group_regs {
-	__BFP(run);
-	__BFP(enable);
-	__BFP(disable);
-	__BFP(stop_cfg);
-	__BFP(stop_cfg_set);
-	__BFP(stop_cfg_clr);
-	__BFP(data_imsk);
-	__BFP(stat_imsk);
-	__BFP(tr_msk);
-	__BFP(tr_ie);
-	__BFP(data_ilat);
-	__BFP(stat_ilat);
-	__BFP(err_status);
-	__BFP(bcast_per);
-	__BFP(bcast_wid);
-	__BFP(bcast_dly);
-
-};
-#endif
-
-#undef __BFP
-
-#endif