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, 146 deletions

diff --git a/arch/cris/boot/compressed/head_v32.S b/arch/cris/boot/compressed/head_v32.S
deleted file mode 100644
index a997947d31e3..000000000000
--- a/arch/cris/boot/compressed/head_v32.S
+++ /dev/null
@@ -1,146 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- *  Code that sets up the DRAM registers, calls the
- *  decompressor to unpack the piggybacked kernel, and jumps.
- *
- *  Copyright (C) 1999 - 2006, Axis Communications AB
- */
-
-#define ASSEMBLER_MACROS_ONLY
-#include <hwregs/asm/reg_map_asm.h>
-#include <mach/startup.inc>
-
-#define RAM_INIT_MAGIC 0x56902387
-#define COMMAND_LINE_MAGIC 0x87109563
-
-	;; Exported symbols
-
-	.globl	input_data
-
-	.text
-start:
-	di
-
-	;; Start clocks for used blocks.
-	START_CLOCKS
-
-	;; Initialize the DRAM registers.
-	cmp.d	RAM_INIT_MAGIC, $r8	; Already initialized?
-	beq	dram_init_finished
-	nop
-
-#if defined CONFIG_ETRAXFS
-#include "../../arch-v32/mach-fs/dram_init.S"
-#elif defined CONFIG_CRIS_MACH_ARTPEC3
-#include "../../arch-v32/mach-a3/dram_init.S"
-#else
-#error Only ETRAXFS and ARTPEC-3 supported!
-#endif
-
-dram_init_finished:
-
-	GIO_INIT
-	;; Setup the stack to a suitably high address.
-	;; We assume 8 MB is the minimum DRAM and put
-	;; the SP at the top for now.
-
-	move.d	0x40800000, $sp
-
-	;; Figure out where the compressed piggyback image is.
-	;; It is either in [NOR] flash (we don't want to copy it
-	;; to DRAM before unpacking), or copied to DRAM
-	;; by the [NAND] flash boot loader.
-	;; The piggyback image is at _edata, but relative to where the
-	;; image is actually located in memory, not where it is linked
-	;; (the decompressor is linked at 0x40700000+ and runs there).
-	;; Use (_edata - herami) as offset to the current PC.
-
-hereami:
-	lapcq	., $r5		; get PC
-	and.d	0x7fffffff, $r5	; strip any non-cache bit
-	move.d	$r5, $r0	; source address of 'herami'
-	add.d	_edata, $r5
-	sub.d	hereami, $r5	; r5 = flash address of '_edata'
-	move.d	hereami, $r1	; destination
-
-	;; Copy text+data to DRAM
-
-	move.d	_edata, $r2	; end destination
-1:	move.w	[$r0+], $r3	; from herami+ source
-	move.w	$r3, [$r1+]	; to hereami+ destination (linked address)
-	cmp.d	$r2, $r1	; finish when destination == _edata
-	bcs	1b
-	nop
-	move.d	input_data, $r0 ; for the decompressor
-	move.d	$r5, [$r0]	; for the decompressor
-
-	;; Clear the decompressors BSS (between _edata and _end)
-
-	moveq	0, $r0
-	move.d	_edata, $r1
-	move.d	_end, $r2
-1:	move.w	$r0, [$r1+]
-	cmp.d	$r2, $r1
-	bcs	1b
-	nop
-
-	;;  Save command line magic and address.
-	move.d	_cmd_line_magic, $r0
-	move.d  $r10, [$r0]
-	move.d	_cmd_line_addr, $r0
-	move.d  $r11, [$r0]
-
-	;;  Save boot source indicator
-	move.d	_boot_source, $r0
-	move.d	$r12, [$r0]
-
-	;; Do the decompression and save compressed size in _inptr
-
-	jsr	decompress_kernel
-	nop
-
-	;; Restore boot source indicator
-	move.d	_boot_source, $r12
-	move.d	[$r12], $r12
-
-	;; Restore command line magic and address.
-	move.d  _cmd_line_magic, $r10
-	move.d  [$r10], $r10
-	move.d  _cmd_line_addr, $r11
-	move.d  [$r11], $r11
-
-	;; Put start address of root partition in r9 so the kernel can use it
-	;; when mounting from flash
-	move.d  input_data, $r0
-	move.d	[$r0], $r9		; flash address of compressed kernel
-	move.d  inptr, $r0
-	add.d	[$r0], $r9		; size of compressed kernel
-	cmp.d   0x40000000, $r9		; image in DRAM ?
-	blo	enter_kernel		; no, must be [NOR] flash, jump
-	nop				; delay slot
-	and.d   0x001fffff, $r9		; assume compressed kernel was < 2M
-
-enter_kernel:
-	;; Enter the decompressed kernel
-	move.d	RAM_INIT_MAGIC, $r8	; Tell kernel that DRAM is initialized
-	jump	0x40004000	; kernel is linked to this address
-	nop
-
-	.data
-
-input_data:
-	.dword	0		; used by the decompressor
-_cmd_line_magic:
-	.dword 0
-_cmd_line_addr:
-	.dword 0
-_boot_source:
-	.dword 0
-
-#if defined CONFIG_ETRAXFS
-#include "../../arch-v32/mach-fs/hw_settings.S"
-#elif defined CONFIG_CRIS_MACH_ARTPEC3
-#include "../../arch-v32/mach-a3/hw_settings.S"
-#else
-#error Only ETRAXFS and ARTPEC-3 supported!
-#endif