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   - unicore32 and hexagon both have very outdated gcc releases, but the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, 104 deletions

diff --git a/drivers/net/ethernet/adi/bfin_mac.h b/drivers/net/ethernet/adi/bfin_mac.h
deleted file mode 100644
index 4ad5b9be3f84..000000000000
--- a/drivers/net/ethernet/adi/bfin_mac.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Blackfin On-Chip MAC Driver
- *
- * Copyright 2004-2007 Analog Devices Inc.
- *
- * Enter bugs at http://blackfin.uclinux.org/
- *
- * Licensed under the GPL-2 or later.
- */
-#ifndef _BFIN_MAC_H_
-#define _BFIN_MAC_H_
-
-#include <linux/net_tstamp.h>
-#include <linux/ptp_clock_kernel.h>
-#include <linux/timer.h>
-#include <linux/etherdevice.h>
-#include <linux/bfin_mac.h>
-
-/*
- * Disable hardware checksum for bug #5600 if writeback cache is
- * enabled. Otherwize, corrupted RX packet will be sent up stack
- * without error mark.
- */
-#ifndef CONFIG_BFIN_EXTMEM_WRITEBACK
-#define BFIN_MAC_CSUM_OFFLOAD
-#endif
-
-#define TX_RECLAIM_JIFFIES (HZ / 5)
-#define BFIN_MAC_RX_IRQ_DISABLED	1
-
-struct dma_descriptor {
-	struct dma_descriptor *next_dma_desc;
-	unsigned long start_addr;
-	unsigned short config;
-	unsigned short x_count;
-};
-
-struct status_area_rx {
-#if defined(BFIN_MAC_CSUM_OFFLOAD)
-	unsigned short ip_hdr_csum;	/* ip header checksum */
-	/* ip payload(udp or tcp or others) checksum */
-	unsigned short ip_payload_csum;
-#endif
-	unsigned long status_word;	/* the frame status word */
-};
-
-struct status_area_tx {
-	unsigned long status_word;	/* the frame status word */
-};
-
-/* use two descriptors for a packet */
-struct net_dma_desc_rx {
-	struct net_dma_desc_rx *next;
-	struct sk_buff *skb;
-	struct dma_descriptor desc_a;
-	struct dma_descriptor desc_b;
-	struct status_area_rx status;
-};
-
-/* use two descriptors for a packet */
-struct net_dma_desc_tx {
-	struct net_dma_desc_tx *next;
-	struct sk_buff *skb;
-	struct dma_descriptor desc_a;
-	struct dma_descriptor desc_b;
-	unsigned char packet[1560];
-	struct status_area_tx status;
-};
-
-struct bfin_mac_local {
-	spinlock_t lock;
-
-	int wol;		/* Wake On Lan */
-	int irq_wake_requested;
-	struct timer_list tx_reclaim_timer;
-	struct net_device *ndev;
-	struct napi_struct napi;
-	unsigned long flags;
-
-	/* Data for EMAC_VLAN1 regs */
-	u16 vlan1_mask, vlan2_mask;
-
-	/* MII and PHY stuffs */
-	int old_link;          /* used by bf537_adjust_link */
-	int old_speed;
-	int old_duplex;
-
-	struct mii_bus *mii_bus;
-
-#if defined(CONFIG_BFIN_MAC_USE_HWSTAMP)
-	u32 addend;
-	unsigned int shift;
-	s32 max_ppb;
-	struct hwtstamp_config stamp_cfg;
-	struct ptp_clock_info caps;
-	struct ptp_clock *clock;
-	int phc_index;
-	spinlock_t phc_lock; /* protects time lo/hi registers */
-#endif
-};
-
-int bfin_get_ether_addr(char *addr);
-
-#endif