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/bug.h b/arch/cris/include/arch-v10/arch/bug.h
deleted file mode 100644
index 06da9d49152a..000000000000
--- a/arch/cris/include/arch-v10/arch/bug.h
+++ /dev/null
@@ -1,74 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_CRISv10_ARCH_BUG_H
-#define __ASM_CRISv10_ARCH_BUG_H
-
-#include <linux/stringify.h>
-
-#ifdef CONFIG_BUG
-#ifdef CONFIG_DEBUG_BUGVERBOSE
-/* The BUG() macro is used for marking obviously incorrect code paths.
- * It will cause a message with the file name and line number to be printed,
- * and then cause an oops.  The message is actually printed by handle_BUG()
- * in arch/cris/kernel/traps.c, and the reason we use this method of storing
- * the file name and line number is that we do not want to affect the registers
- * by calling printk() before causing the oops.
- */
-
-#define BUG_PREFIX 0x0D7F
-#define BUG_MAGIC  0x00001234
-
-struct bug_frame {
-	unsigned short prefix;
-	unsigned int magic;
-	unsigned short clear;
-	unsigned short movu;
-	unsigned short line;
-	unsigned short jump;
-	unsigned char *filename;
-};
-
-#if 0
-/* Unfortunately this version of the macro does not work due to a problem
- * with the compiler (aka a bug) when compiling with -O2, which sometimes
- * erroneously causes the second input to be stored in a register...
- */
-#define BUG()								\
-	__asm__ __volatile__ ("clear.d [" __stringify(BUG_MAGIC) "]\n\t"\
-				"movu.w %0,$r0\n\t"			\
-				"jump %1\n\t"				\
-				: : "i" (__LINE__), "i" (__FILE__))
-#else
-/* This version will have to do for now, until the compiler is fixed.
- * The drawbacks of this version are that the file name will appear multiple
- * times in the .rodata section, and that __LINE__ and __FILE__ can probably
- * not be used like this with newer versions of gcc.
- */
-#define BUG()								\
-do {									\
-	__asm__ __volatile__ ("clear.d [" __stringify(BUG_MAGIC) "]\n\t"\
-			      "movu.w " __stringify(__LINE__) ",$r0\n\t"\
-			      "jump 0f\n\t"				\
-			      ".section .rodata\n"			\
-			      "0:\t.string \"" __FILE__ "\"\n\t"	\
-			      ".previous");				\
-	unreachable();							\
-} while (0)
-#endif
-
-#else
-
-/* This just causes an oops. */
-#define BUG()								\
-do {									\
-	barrier_before_unreachable();					\
-	__builtin_trap();						\
-} while (0)
-
-#endif
-
-#define HAVE_ARCH_BUG
-#endif
-
-#include <asm-generic/bug.h>
-
-#endif