CRIS: Drop support for the CRIS port

The port was added back in 2000 so it's no longer even a good source
of inspiration for newer ports (if it ever was)

The last SoC (ARTPEC-3) with a CRIS main CPU was launched in 2008.

Coupled with time and working developer board hardware being
in low supply, it's time to drop the port from Linux.

So long and thanks for all the fish!

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 74 deletions

diff --git a/arch/cris/include/arch-v10/arch/bitops.h b/arch/cris/include/arch-v10/arch/bitops.h
deleted file mode 100644
index c18f81858899..000000000000
--- a/arch/cris/include/arch-v10/arch/bitops.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* asm/arch/bitops.h for Linux/CRISv10 */
-
-#ifndef _CRIS_ARCH_BITOPS_H
-#define _CRIS_ARCH_BITOPS_H
-
-/*
- * Helper functions for the core of the ff[sz] functions, wrapping the
- * syntactically awkward asms.  The asms compute the number of leading
- * zeroes of a bits-in-byte and byte-in-word and word-in-dword-swapped
- * number.  They differ in that the first function also inverts all bits
- * in the input.
- */
-static inline unsigned long cris_swapnwbrlz(unsigned long w)
-{
-	/* Let's just say we return the result in the same register as the
-	   input.  Saying we clobber the input but can return the result
-	   in another register:
-	   !  __asm__ ("swapnwbr %2\n\tlz %2,%0"
-	   !	      : "=r,r" (res), "=r,X" (dummy) : "1,0" (w));
-	   confuses gcc (core.c, gcc from cris-dist-1.14).  */
-
-	unsigned long res;
-	__asm__ ("swapnwbr %0 \n\t"
-		 "lz %0,%0"
-		 : "=r" (res) : "0" (w));
-	return res;
-}
-
-static inline unsigned long cris_swapwbrlz(unsigned long w)
-{
-	unsigned res;
-	__asm__ ("swapwbr %0 \n\t"
-		 "lz %0,%0"
-		 : "=r" (res)
-		 : "0" (w));
-	return res;
-}
-
-/*
- * ffz = Find First Zero in word. Undefined if no zero exists,
- * so code should check against ~0UL first..
- */
-static inline unsigned long ffz(unsigned long w)
-{
-	return cris_swapnwbrlz(w);
-}
-
-/**
- * __ffs - find first bit in word.
- * @word: The word to search
- *
- * Undefined if no bit exists, so code should check against 0 first.
- */
-static inline unsigned long __ffs(unsigned long word)
-{
-	return cris_swapnwbrlz(~word);
-}
-
-/**
- * ffs - find first bit set
- * @x: the word to search
- *
- * This is defined the same way as
- * the libc and compiler builtin ffs routines, therefore
- * differs in spirit from the above ffz (man ffs).
- */
-
-static inline unsigned long kernel_ffs(unsigned long w)
-{
-	return w ? cris_swapwbrlz (w) + 1 : 0;
-}
-
-#endif