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, 111 deletions

diff --git a/arch/cris/include/arch-v32/arch/mmu.h b/arch/cris/include/arch-v32/arch/mmu.h
deleted file mode 100644
index a8eec1312de0..000000000000
--- a/arch/cris/include/arch-v32/arch/mmu.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_CRIS_ARCH_MMU_H
-#define _ASM_CRIS_ARCH_MMU_H
-
-/* MMU context type. */
-typedef struct
-{
-  unsigned int page_id;
-} mm_context_t;
-
-/* Kernel memory segments. */
-#define KSEG_F 0xf0000000UL
-#define KSEG_E 0xe0000000UL
-#define KSEG_D 0xd0000000UL
-#define KSEG_C 0xc0000000UL
-#define KSEG_B 0xb0000000UL
-#define KSEG_A 0xa0000000UL
-#define KSEG_9 0x90000000UL
-#define KSEG_8 0x80000000UL
-#define KSEG_7 0x70000000UL
-#define KSEG_6 0x60000000UL
-#define KSEG_5 0x50000000UL
-#define KSEG_4 0x40000000UL
-#define KSEG_3 0x30000000UL
-#define KSEG_2 0x20000000UL
-#define KSEG_1 0x10000000UL
-#define KSEG_0 0x00000000UL
-
-/*
- * CRISv32 PTE bits:
- *
- *  Bit:   31     30-13  12-5     4        3       2        1        0
- *       +-------+-----+------+--------+-------+--------+-------+---------+
- *       | cache | pfn | zero | global | valid | kernel | write | execute |
- *       +-------+-----+------+--------+-------+--------+-------+---------+
- */
-
-/*
- * Defines for accessing the bits. Also define some synonyms for use with
- * the software-based defined bits below.
- */
-#define _PAGE_EXECUTE       (1 << 0)	/* Execution bit. */
-#define _PAGE_WE            (1 << 1)	/* Write bit. */
-#define _PAGE_SILENT_WRITE  (1 << 1)	/* Same as above. */
-#define _PAGE_KERNEL        (1 << 2)	/* Kernel mode page. */
-#define _PAGE_VALID         (1 << 3)	/* Page is valid. */
-#define _PAGE_SILENT_READ   (1 << 3)	/* Same as above. */
-#define _PAGE_GLOBAL        (1 << 4)	/* Global page. */
-#define _PAGE_NO_CACHE	    (1 << 31)	/* part of the uncached memory map */
-
-
-/*
- * The hardware doesn't care about these bits, but the kernel uses them in
- * software.
- */
-#define _PAGE_PRESENT   (1 << 5)   /* Page is present in memory. */
-#define _PAGE_ACCESSED  (1 << 6)   /* Simulated in software using valid bit. */
-#define _PAGE_MODIFIED  (1 << 7)   /* Simulated in software using we bit. */
-#define _PAGE_READ      (1 << 8)   /* Read enabled. */
-#define _PAGE_WRITE     (1 << 9)   /* Write enabled. */
-
-/* Define some higher level generic page attributes. */
-#define __READABLE      (_PAGE_READ | _PAGE_SILENT_READ | _PAGE_ACCESSED)
-#define __WRITEABLE     (_PAGE_WRITE | _PAGE_SILENT_WRITE | _PAGE_MODIFIED)
-
-#define _PAGE_TABLE	(_PAGE_PRESENT | __READABLE | __WRITEABLE)
-#define _PAGE_CHG_MASK  (PAGE_MASK | _PAGE_ACCESSED | _PAGE_MODIFIED)
-
-#define PAGE_NONE       __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED)
-#define PAGE_SHARED     __pgprot(_PAGE_PRESENT | __READABLE | _PAGE_WRITE | \
-                                 _PAGE_ACCESSED)
-#define PAGE_SHARED_EXEC __pgprot(_PAGE_PRESENT | __READABLE | _PAGE_WRITE | \
-                                  _PAGE_ACCESSED | _PAGE_EXECUTE)
-
-#define PAGE_READONLY   __pgprot(_PAGE_PRESENT | __READABLE)
-#define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | __READABLE | _PAGE_EXECUTE | _PAGE_ACCESSED)
-
-#define PAGE_COPY       __pgprot(_PAGE_PRESENT | __READABLE)
-#define PAGE_COPY_EXEC	__pgprot(_PAGE_PRESENT | __READABLE | _PAGE_EXECUTE)
-#define PAGE_KERNEL     __pgprot(_PAGE_GLOBAL | _PAGE_KERNEL | \
-                                 _PAGE_PRESENT | __READABLE | __WRITEABLE)
-#define PAGE_KERNEL_EXEC __pgprot(_PAGE_GLOBAL | _PAGE_KERNEL | _PAGE_EXECUTE | \
-                                 _PAGE_PRESENT | __READABLE | __WRITEABLE)
-#define PAGE_SIGNAL_TRAMPOLINE __pgprot(_PAGE_GLOBAL | _PAGE_EXECUTE | \
-                                       _PAGE_PRESENT | __READABLE)
-
-#define _KERNPG_TABLE   (_PAGE_TABLE | _PAGE_KERNEL)
-
-/* CRISv32 can do page protection for execute.
- * Write permissions imply read permissions.
- * Note that the numbers are in Execute-Write-Read order!
- */
-#define __P000  PAGE_NONE
-#define __P001  PAGE_READONLY
-#define __P010  PAGE_COPY
-#define __P011  PAGE_COPY
-#define __P100  PAGE_READONLY_EXEC
-#define __P101  PAGE_READONLY_EXEC
-#define __P110  PAGE_COPY_EXEC
-#define __P111  PAGE_COPY_EXEC
-
-#define __S000  PAGE_NONE
-#define __S001  PAGE_READONLY
-#define __S010  PAGE_SHARED
-#define __S011  PAGE_SHARED
-#define __S100  PAGE_READONLY_EXEC
-#define __S101  PAGE_READONLY_EXEC
-#define __S110  PAGE_SHARED_EXEC
-#define __S111  PAGE_SHARED_EXEC
-
-#endif /* _ASM_CRIS_ARCH_MMU_H */