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, 70 deletions

diff --git a/arch/cris/include/arch-v10/arch/processor.h b/arch/cris/include/arch-v10/arch/processor.h
deleted file mode 100644
index b2df646bc1eb..000000000000
--- a/arch/cris/include/arch-v10/arch/processor.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef __ASM_CRIS_ARCH_PROCESSOR_H
-#define __ASM_CRIS_ARCH_PROCESSOR_H
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({void *pc; __asm__ ("move.d $pc,%0" : "=rm" (pc)); pc; })
-
-/* CRIS has no problems with write protection */
-#define wp_works_ok 1
-
-/* CRIS thread_struct. this really has nothing to do with the processor itself, since
- * CRIS does not do any hardware task-switching, but it's here for legacy reasons.
- * The thread_struct here is used when task-switching using _resume defined in entry.S.
- * The offsets here are hardcoded into _resume - if you change this struct, you need to
- * change them as well!!!
-*/
-
-struct thread_struct {
-	unsigned long ksp;     /* kernel stack pointer */
-	unsigned long usp;     /* user stack pointer */
-	unsigned long dccr;    /* saved flag register */
-};
-
-/*
- * User space process size. This is hardcoded into a few places,
- * so don't change it unless you know what you are doing.
- */
-
-#ifdef CONFIG_CRIS_LOW_MAP
-#define TASK_SIZE       (0x50000000UL)   /* 1.25 GB */
-#else
-#define TASK_SIZE       (0xA0000000UL)   /* 2.56 GB */
-#endif
-
-#define INIT_THREAD  { \
-   0, 0, 0x20 }  /* ccr = int enable, nothing else */
-
-#define KSTK_EIP(tsk)	\
-({			\
-	unsigned long eip = 0;   \
-	unsigned long regs = (unsigned long)task_pt_regs(tsk); \
-	if (regs > PAGE_SIZE && \
-		virt_addr_valid(regs)) \
-	eip = ((struct pt_regs *)regs)->irp; \
-	eip; \
-})
-
-/* give the thread a program location
- * set user-mode (The 'U' flag (User mode flag) is CCR/DCCR bit 8) 
- * switch user-stackpointer
- */
-
-#define start_thread(regs, ip, usp) do { \
-	regs->irp = ip;       \
-	regs->dccr |= 1 << U_DCCR_BITNR; \
-	wrusp(usp);           \
-} while(0)
-
-/* Called when handling a kernel bus fault fixup.
- *
- * After a fixup we do not want to return by restoring the CPU-state
- * anymore, so switch frame-types (see ptrace.h)
- */
-#define arch_fixup(regs) \
-   regs->frametype = CRIS_FRAME_NORMAL;
-
-#endif