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, 142 deletions

diff --git a/arch/cris/boot/rescue/kimagerescue.S b/arch/cris/boot/rescue/kimagerescue.S
deleted file mode 100644
index 3306098dee15..000000000000
--- a/arch/cris/boot/rescue/kimagerescue.S
+++ /dev/null
@@ -1,142 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * Rescue code to be prepended on a kimage and copied to the
- * rescue serial port.
- * This is called from the rescue code, it will copy received data to
- * 4004000 and after a timeout jump to it.
- */
-
-#define ASSEMBLER_MACROS_ONLY
-#include <arch/sv_addr_ag.h>
-
-#define CODE_START 0x40004000
-#define CODE_LENGTH 784
-#define TIMEOUT_VALUE 1000
-
-
-#ifdef CONFIG_ETRAX_RESCUE_SER0
-#define SERXOFF R_SERIAL0_XOFF
-#define SERBAUD R_SERIAL0_BAUD
-#define SERRECC R_SERIAL0_REC_CTRL
-#define SERRDAT R_SERIAL0_REC_DATA
-#define SERSTAT R_SERIAL0_STATUS
-#endif
-#ifdef CONFIG_ETRAX_RESCUE_SER1
-#define SERXOFF R_SERIAL1_XOFF
-#define SERBAUD R_SERIAL1_BAUD
-#define SERRECC R_SERIAL1_REC_CTRL
-#define SERRDAT R_SERIAL1_REC_DATA
-#define SERSTAT R_SERIAL1_STATUS
-#endif
-#ifdef CONFIG_ETRAX_RESCUE_SER2
-#define SERXOFF R_SERIAL2_XOFF
-#define SERBAUD R_SERIAL2_BAUD
-#define SERRECC R_SERIAL2_REC_CTRL
-#define SERRDAT R_SERIAL2_REC_DATA
-#define SERSTAT R_SERIAL2_STATUS
-#endif
-#ifdef CONFIG_ETRAX_RESCUE_SER3
-#define SERXOFF R_SERIAL3_XOFF
-#define SERBAUD R_SERIAL3_BAUD
-#define SERRECC R_SERIAL3_REC_CTRL
-#define SERRDAT R_SERIAL3_REC_DATA
-#define SERSTAT R_SERIAL3_STATUS
-#endif
-
-	.text
-	;; This is the entry point of the rescue code
-	;; 0x80000000 if loaded in flash (as it should be)
-	;; since etrax actually starts at address 2 when booting from flash, we
-	;; put a nop (2 bytes) here first so we dont accidentally skip the di
-
-	nop
-	di
-	;; setup port PA and PB default initial directions and data
-	;; (so we can flash LEDs, and so that DTR and others are set)
-
-	move.b	CONFIG_ETRAX_DEF_R_PORT_PA_DIR, $r0
-	move.b	$r0, [R_PORT_PA_DIR]
-	move.b	CONFIG_ETRAX_DEF_R_PORT_PA_DATA, $r0
-	move.b	$r0, [R_PORT_PA_DATA]
-
-	move.b	CONFIG_ETRAX_DEF_R_PORT_PB_DIR, $r0
-	move.b	$r0, [R_PORT_PB_DIR]
-	move.b	CONFIG_ETRAX_DEF_R_PORT_PB_DATA, $r0
-	move.b	$r0, [R_PORT_PB_DATA]
-
-	;; We need to setup the bus registers before we start using the DRAM
-#include "../../lib/dram_init.S"
-
-	;; Setup the stack to a suitably high address.
-	;; We assume 8 MB is the minimum DRAM in an eLinux
-	;; product and put the sp at the top for now.
-
-	move.d	0x40800000, $sp
-
-	;; setup the serial port at 115200 baud
-
-	moveq	0, $r0
-	move.d	$r0, [SERXOFF]
-
-	move.b	0x99, $r0
-	move.b	$r0, [SERBAUD]		; 115.2kbaud for both transmit
-					; and receive
-
-	move.b	0x40, $r0		; rec enable
-	move.b	$r0, [SERRECC]
-
-
-	moveq	0, $r1			; "timer" to clock out a LED red flash
-	move.d	CODE_START, $r3		; destination counter
-	move.d	CODE_LENGTH, $r4	; length
-	move.d	TIMEOUT_VALUE, $r5	; "timeout" until jump
-
-wait_ser:
-	addq	1, $r1
-	subq	1, $r5			; decrease timeout
-	beq	jump_start		; timed out
-	nop
-#ifndef CONFIG_ETRAX_NO_LEDS
-#ifdef CONFIG_ETRAX_PA_LEDS
-	move.b	CONFIG_ETRAX_DEF_R_PORT_PA_DATA, $r2
-#endif
-#ifdef CONFIG_ETRAX_PB_LEDS
-	move.b	CONFIG_ETRAX_DEF_R_PORT_PB_DATA, $r2
-#endif
-	move.d	(1 << CONFIG_ETRAX_LED1R) | (1 << CONFIG_ETRAX_LED2R), $r0
-	btstq	16, $r1
-	bpl	1f
-	nop
-	or.d	$r0, $r2		; set bit
-	ba	2f
-	nop
-1:	not	$r0			; clear bit
-	and.d	$r0, $r2
-2:
-#ifdef CONFIG_ETRAX_PA_LEDS
-	move.b	$r2, [R_PORT_PA_DATA]
-#endif
-#ifdef CONFIG_ETRAX_PB_LEDS
-	move.b	$r2, [R_PORT_PB_DATA]
-#endif
-#endif
-
-	;; check if we got something on the serial port
-
-	move.b	[SERSTAT], $r0
-	btstq	0, $r0			; data_avail
-	bpl	wait_ser
-	nop
-
-	;; got something - copy the byte and loop
-
-	move.b	[SERRDAT], $r0
-	move.b	$r0, [$r3+]
-	move.d	TIMEOUT_VALUE, $r5	; reset "timeout"
-	subq	1, $r4			; decrease length
-	bne	wait_ser
-	nop
-jump_start:
-	;; jump into downloaded code
-
-	jump	CODE_START