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   - unicore32 and hexagon both have very outdated gcc releases, but the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, 165 deletions

diff --git a/arch/blackfin/include/asm/bfin_dma.h b/arch/blackfin/include/asm/bfin_dma.h
deleted file mode 100644
index 6319f4e49083..000000000000
--- a/arch/blackfin/include/asm/bfin_dma.h
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * bfin_dma.h - Blackfin DMA defines/structures/etc...
- *
- * Copyright 2004-2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef __ASM_BFIN_DMA_H__
-#define __ASM_BFIN_DMA_H__
-
-#include <linux/types.h>
-
-/* DMA_CONFIG Masks */
-#define DMAEN			0x0001	/* DMA Channel Enable */
-#define WNR				0x0002	/* Channel Direction (W/R*) */
-#define WDSIZE_8		0x0000	/* Transfer Word Size = 8 */
-#define PSIZE_8			0x00000000	/* Transfer Word Size = 16 */
-
-#ifdef CONFIG_BF60x
-
-#define PSIZE_16		0x00000010	/* Transfer Word Size = 16 */
-#define PSIZE_32		0x00000020	/* Transfer Word Size = 32 */
-#define PSIZE_64		0x00000030	/* Transfer Word Size = 32 */
-#define WDSIZE_16		0x00000100	/* Transfer Word Size = 16 */
-#define WDSIZE_32		0x00000200	/* Transfer Word Size = 32 */
-#define WDSIZE_64		0x00000300	/* Transfer Word Size = 32 */
-#define WDSIZE_128		0x00000400	/* Transfer Word Size = 32 */
-#define WDSIZE_256		0x00000500	/* Transfer Word Size = 32 */
-#define DMA2D			0x04000000	/* DMA Mode (2D/1D*) */
-#define RESTART			0x00000004	/* DMA Buffer Clear SYNC */
-#define DI_EN_X			0x00100000	/* Data Interrupt Enable in X count */
-#define DI_EN_Y			0x00200000	/* Data Interrupt Enable in Y count */
-#define DI_EN_P			0x00300000	/* Data Interrupt Enable in Peripheral */
-#define DI_EN			DI_EN_X		/* Data Interrupt Enable */
-#define NDSIZE_0		0x00000000	/* Next Descriptor Size = 1 */
-#define NDSIZE_1		0x00010000	/* Next Descriptor Size = 2 */
-#define NDSIZE_2		0x00020000	/* Next Descriptor Size = 3 */
-#define NDSIZE_3		0x00030000	/* Next Descriptor Size = 4 */
-#define NDSIZE_4		0x00040000	/* Next Descriptor Size = 5 */
-#define NDSIZE_5		0x00050000	/* Next Descriptor Size = 6 */
-#define NDSIZE_6		0x00060000	/* Next Descriptor Size = 7 */
-#define NDSIZE			0x00070000	/* Next Descriptor Size */
-#define NDSIZE_OFFSET		16		/* Next Descriptor Size Offset */
-#define DMAFLOW_LIST		0x00004000	/* Descriptor List Mode */
-#define DMAFLOW_LARGE		DMAFLOW_LIST
-#define DMAFLOW_ARRAY		0x00005000	/* Descriptor Array Mode */
-#define DMAFLOW_LIST_DEMAND	0x00006000	/* Descriptor Demand List Mode */
-#define DMAFLOW_ARRAY_DEMAND	0x00007000	/* Descriptor Demand Array Mode */
-#define DMA_RUN_DFETCH		0x00000100	/* DMA Channel Running Indicator (DFETCH) */
-#define DMA_RUN			0x00000200	/* DMA Channel Running Indicator */
-#define DMA_RUN_WAIT_TRIG	0x00000300	/* DMA Channel Running Indicator (WAIT TRIG) */
-#define DMA_RUN_WAIT_ACK	0x00000400	/* DMA Channel Running Indicator (WAIT ACK) */
-
-#else
-
-#define PSIZE_16		0x0000	/* Transfer Word Size = 16 */
-#define PSIZE_32		0x0000	/* Transfer Word Size = 32 */
-#define WDSIZE_16		0x0004	/* Transfer Word Size = 16 */
-#define WDSIZE_32		0x0008	/* Transfer Word Size = 32 */
-#define DMA2D			0x0010	/* DMA Mode (2D/1D*) */
-#define RESTART			0x0020	/* DMA Buffer Clear */
-#define DI_SEL			0x0040	/* Data Interrupt Timing Select */
-#define DI_EN			0x0080	/* Data Interrupt Enable */
-#define DI_EN_X			0x00C0	/* Data Interrupt Enable in X count*/
-#define DI_EN_Y			0x0080	/* Data Interrupt Enable in Y count*/
-#define NDSIZE_0		0x0000	/* Next Descriptor Size = 0 (Stop/Autobuffer) */
-#define NDSIZE_1		0x0100	/* Next Descriptor Size = 1 */
-#define NDSIZE_2		0x0200	/* Next Descriptor Size = 2 */
-#define NDSIZE_3		0x0300	/* Next Descriptor Size = 3 */
-#define NDSIZE_4		0x0400	/* Next Descriptor Size = 4 */
-#define NDSIZE_5		0x0500	/* Next Descriptor Size = 5 */
-#define NDSIZE_6		0x0600	/* Next Descriptor Size = 6 */
-#define NDSIZE_7		0x0700	/* Next Descriptor Size = 7 */
-#define NDSIZE_8		0x0800	/* Next Descriptor Size = 8 */
-#define NDSIZE_9		0x0900	/* Next Descriptor Size = 9 */
-#define NDSIZE			0x0f00	/* Next Descriptor Size */
-#define NDSIZE_OFFSET		8	/* Next Descriptor Size Offset */
-#define DMAFLOW_ARRAY	0x4000	/* Descriptor Array Mode */
-#define DMAFLOW_SMALL	0x6000	/* Small Model Descriptor List Mode */
-#define DMAFLOW_LARGE	0x7000	/* Large Model Descriptor List Mode */
-#define DFETCH			0x0004	/* DMA Descriptor Fetch Indicator */
-#define DMA_RUN			0x0008	/* DMA Channel Running Indicator */
-
-#endif
-#define DMAFLOW			0x7000	/* Flow Control */
-#define DMAFLOW_STOP	0x0000	/* Stop Mode */
-#define DMAFLOW_AUTO	0x1000	/* Autobuffer Mode */
-
-/* DMA_IRQ_STATUS Masks */
-#define DMA_DONE		0x0001	/* DMA Completion Interrupt Status */
-#define DMA_ERR			0x0002	/* DMA Error Interrupt Status */
-#ifdef CONFIG_BF60x
-#define DMA_PIRQ		0x0004	/* DMA Peripheral Error Interrupt Status */
-#else
-#define DMA_PIRQ		0
-#endif
-
-/*
- * 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 dma registers layout
- */
-struct bfin_dma_regs {
-	u32 next_desc_ptr;
-	u32 start_addr;
-#ifdef CONFIG_BF60x
-	u32 cfg;
-	u32 x_count;
-	u32 x_modify;
-	u32 y_count;
-	u32 y_modify;
-	u32 pad1;
-	u32 pad2;
-	u32 curr_desc_ptr;
-	u32 prev_desc_ptr;
-	u32 curr_addr;
-	u32 irq_status;
-	u32 curr_x_count;
-	u32 curr_y_count;
-	u32 pad3;
-	u32 bw_limit_count;
-	u32 curr_bw_limit_count;
-	u32 bw_monitor_count;
-	u32 curr_bw_monitor_count;
-#else
-	__BFP(config);
-	u32 __pad0;
-	__BFP(x_count);
-	__BFP(x_modify);
-	__BFP(y_count);
-	__BFP(y_modify);
-	u32 curr_desc_ptr;
-	u32 curr_addr;
-	__BFP(irq_status);
-	__BFP(peripheral_map);
-	__BFP(curr_x_count);
-	u32 __pad1;
-	__BFP(curr_y_count);
-	u32 __pad2;
-#endif
-};
-
-#ifndef CONFIG_BF60x
-/*
- * bfin handshake mdma registers layout
- */
-struct bfin_hmdma_regs {
-	__BFP(control);
-	__BFP(ecinit);
-	__BFP(bcinit);
-	__BFP(ecurgent);
-	__BFP(ecoverflow);
-	__BFP(ecount);
-	__BFP(bcount);
-};
-#endif
-
-#undef __BFP
-
-#endif