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>

7 files changed, 0 insertions, 772 deletions

diff --git a/arch/cris/boot/compressed/Makefile b/arch/cris/boot/compressed/Makefile
deleted file mode 100644
index e149c3467c93..000000000000
--- a/arch/cris/boot/compressed/Makefile
+++ /dev/null
@@ -1,36 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-#
-# arch/cris/boot/compressed/Makefile
-#
-
-# asflags-$(CONFIG_ETRAX_ARCH_V32) += -I$(srctree)/include/asm/mach \
-# 				    -I$(srctree)/include/asm/arch
-# ccflags-$(CONFIG_ETRAX_ARCH_V32) += -O2 -I$(srctree)/include/asm/mach
-# 					-I$(srctree)/include/asm/arch
-
-arch-$(CONFIG_ETRAX_ARCH_V10) = v10
-arch-$(CONFIG_ETRAX_ARCH_V32) = v32
-
-ldflags-y += -T $(srctree)/$(src)/decompress_$(arch-y).lds
-
-OBJECTS-$(CONFIG_ETRAX_ARCH_V32) = $(obj)/head_v32.o
-OBJECTS-$(CONFIG_ETRAX_ARCH_V10) = $(obj)/head_v10.o
-OBJECTS= $(OBJECTS-y) $(obj)/misc.o
-OBJCOPYFLAGS = -O binary --remove-section=.bss
-
-quiet_cmd_image = BUILD   $@
-cmd_image = cat $(obj)/decompress.bin $(obj)/piggy.gz > $@
-
-targets := vmlinux piggy.gz decompress.o decompress.bin
-
-$(obj)/decompress.o: $(OBJECTS) FORCE
-	$(call if_changed,ld)
-
-$(obj)/decompress.bin: $(obj)/decompress.o FORCE
-	$(call if_changed,objcopy)
-
-$(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE
-	$(call if_changed,image)
-
-$(obj)/piggy.gz: $(obj)/../Image FORCE
-	$(call if_changed,gzip)
diff --git a/arch/cris/boot/compressed/README b/arch/cris/boot/compressed/README
deleted file mode 100644
index 182c5d75784b..000000000000
--- a/arch/cris/boot/compressed/README
+++ /dev/null
@@ -1,24 +0,0 @@
-Creation of the self-extracting compressed kernel image (vmlinuz)
------------------------------------------------------------------
-
-This can be slightly confusing because it's a process with many steps.
-
-The kernel object built by the arch/etrax100/Makefile, vmlinux, is split
-by that makefile into text and data binary files, vmlinux.text and
-vmlinux.data.
-
-Those files together with a ROM filesystem can be catted together and
-burned into a flash or executed directly at the DRAM origin.
-
-They can also be catted together and compressed with gzip, which is what
-happens in this makefile. Together they make up piggy.img.
-
-The decompressor is built into the file decompress.o. It is turned into
-the binary file decompress.bin, which is catted together with piggy.img
-into the file vmlinuz. It can be executed in an arbitrary place in flash.
-
-Be careful - it assumes some things about free locations in DRAM. It
-assumes the DRAM starts at 0x40000000 and that it is at least 8 MB,
-so it puts its code at 0x40700000, and initial stack at 0x40800000.
-
--Bjorn
diff --git a/arch/cris/boot/compressed/decompress_v10.lds b/arch/cris/boot/compressed/decompress_v10.lds
deleted file mode 100644
index d8326779dda2..000000000000
--- a/arch/cris/boot/compressed/decompress_v10.lds
+++ /dev/null
@@ -1,31 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* OUTPUT_FORMAT(elf32-us-cris) */
-OUTPUT_FORMAT(elf32-cris)
-
-MEMORY 
-	{
-	dram : ORIGIN = 0x40700000,
-	       LENGTH = 0x00100000
-	}
-
-SECTIONS
-{
-	.text :
-	{
-		_stext = . ;
-		*(.text)
-		*(.rodata)
-		*(.rodata.*)
-		_etext = . ;
-	} > dram
-	.data :
-	{
-		*(.data)
-		_edata = . ;
-	} > dram
-	.bss :
-	{
-		*(.bss)
-		_end = ALIGN( 0x10 ) ;
-	} > dram
-}
diff --git a/arch/cris/boot/compressed/decompress_v32.lds b/arch/cris/boot/compressed/decompress_v32.lds
deleted file mode 100644
index 91d311c243ed..000000000000
--- a/arch/cris/boot/compressed/decompress_v32.lds
+++ /dev/null
@@ -1,31 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*#OUTPUT_FORMAT(elf32-us-cris) */
-OUTPUT_ARCH (crisv32)
-
-MEMORY
-	{
-	dram : ORIGIN = 0x40700000,
-	       LENGTH = 0x00100000
-	}
-
-SECTIONS
-{
-	.text :
-	{
-		_stext = . ;
-		*(.text)
-		*(.rodata)
-		*(.rodata.*)
-		_etext = . ;
-	} > dram
-	.data :
-	{
-		*(.data)
-		_edata = . ;
-	} > dram
-	.bss :
-	{
-		*(.bss)
-		_end = ALIGN( 0x10 ) ;
-	} > dram
-}
diff --git a/arch/cris/boot/compressed/head_v10.S b/arch/cris/boot/compressed/head_v10.S
deleted file mode 100644
index 08198d8cd37f..000000000000
--- a/arch/cris/boot/compressed/head_v10.S
+++ /dev/null
@@ -1,127 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- *  arch/cris/boot/compressed/head.S
- *
- *  Copyright (C) 1999, 2001 Axis Communications AB
- *
- *  Code that sets up the DRAM registers, calls the
- *  decompressor to unpack the piggybacked kernel, and jumps.
- *
- */
-
-#define ASSEMBLER_MACROS_ONLY
-#include <arch/sv_addr_ag.h>
-
-#define RAM_INIT_MAGIC 0x56902387
-#define COMMAND_LINE_MAGIC 0x87109563
-
-	;; Exported symbols
-
-	.globl	input_data
-
-
-	.text
-
-	nop
-	di
-
-;; We need to initialze DRAM registers before we start using the DRAM
-
-	cmp.d	RAM_INIT_MAGIC, $r8	; Already initialized?
-	beq	dram_init_finished
-	nop
-
-#include "../../arch-v10/lib/dram_init.S"
-
-dram_init_finished:
-
-	;; Initiate the PA and PB ports
-
-	move.b   CONFIG_ETRAX_DEF_R_PORT_PA_DATA, $r0
-	move.b   $r0, [R_PORT_PA_DATA]
-
-	move.b   CONFIG_ETRAX_DEF_R_PORT_PA_DIR, $r0
-	move.b   $r0, [R_PORT_PA_DIR]
-
-	move.b   CONFIG_ETRAX_DEF_R_PORT_PB_DATA, $r0
-	move.b   $r0, [R_PORT_PB_DATA]
-
-	move.b   CONFIG_ETRAX_DEF_R_PORT_PB_DIR, $r0
-	move.b   $r0, [R_PORT_PB_DIR]
-
-	;; 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
-
-	;; Figure out where the compressed piggyback image is
-	;; in the flash (since we wont try to copy it to DRAM
-	;; before unpacking). It is at _edata, but in flash.
-	;; Use (_edata - basse) as offset to the current PC.
-
-basse:	move.d	$pc, $r5
-	and.d	0x7fffffff, $r5	; strip any non-cache bit
-	subq	2, $r5		; compensate for the move.d $pc instr
-	move.d	$r5, $r0		; save for later - flash address of 'basse'
-	add.d	_edata, $r5
-	sub.d	basse, $r5	; $r5 = flash address of '_edata'
-
-	;; Copy text+data to DRAM
-
-	move.d	basse, $r1	; destination
-	move.d	_edata, $r2	; end destination
-1:	move.w	[$r0+], $r3
-	move.w	$r3, [$r1+]
-	cmp.d	$r2, $r1
-	bcs	1b
-	nop
-
-	move.d	$r5, [input_data] ; 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, $r12
-	move.d  $r10, [$r12]
-	move.d	_cmd_line_addr, $r12
-	move.d  $r11, [$r12]
-
-	;; Do the decompression and save compressed size in inptr
-
-	jsr	decompress_kernel
-
-	;; Put start address of root partition in $r9 so the kernel can use it
-	;; when mounting from flash
-
-	move.d	[input_data], $r9	; flash address of compressed kernel
-	add.d	[inptr], $r9		; size of compressed kernel
-
-	;; 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
-
-	;; Enter the decompressed kernel
-	move.d	RAM_INIT_MAGIC, $r8	; Tell kernel that DRAM is initialized
-	jump	0x40004000	; kernel is linked to this address
-
-	.data
-
-input_data:
-	.dword	0		; used by the decompressor
-_cmd_line_magic:
-	.dword 0
-_cmd_line_addr:
-	.dword 0
-#include "../../arch-v10/lib/hw_settings.S"
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
diff --git a/arch/cris/boot/compressed/misc.c b/arch/cris/boot/compressed/misc.c
deleted file mode 100644
index 1ad464a117b8..000000000000
--- a/arch/cris/boot/compressed/misc.c
+++ /dev/null
@@ -1,377 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * misc.c
- *
- * This is a collection of several routines from gzip-1.0.3
- * adapted for Linux.
- *
- * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
- * puts by Nick Holloway 1993, better puts by Martin Mares 1995
- * adaptation for Linux/CRIS Axis Communications AB, 1999
- *
- */
-
-/* where the piggybacked kernel image expects itself to live.
- * it is the same address we use when we network load an uncompressed
- * image into DRAM, and it is the address the kernel is linked to live
- * at by vmlinux.lds.S
- */
-
-#define KERNEL_LOAD_ADR 0x40004000
-
-#include <linux/types.h>
-
-#ifdef CONFIG_ETRAX_ARCH_V32
-#include <hwregs/reg_rdwr.h>
-#include <hwregs/reg_map.h>
-#include <hwregs/ser_defs.h>
-#include <hwregs/pinmux_defs.h>
-#ifdef CONFIG_CRIS_MACH_ARTPEC3
-#include <hwregs/clkgen_defs.h>
-#endif
-#else
-#include <arch/svinto.h>
-#endif
-
-/*
- * gzip declarations
- */
-
-#define OF(args)  args
-#define STATIC static
-
-void *memset(void *s, int c, size_t n);
-void *memcpy(void *__dest, __const void *__src, size_t __n);
-
-#define memzero(s, n)     memset((s), 0, (n))
-
-typedef unsigned char  uch;
-typedef unsigned short ush;
-typedef unsigned long  ulg;
-
-#define WSIZE 0x8000		/* Window size must be at least 32k, */
-				/* and a power of two */
-
-static uch *inbuf;	     /* input buffer */
-static uch window[WSIZE];    /* Sliding window buffer */
-
-unsigned inptr = 0;	/* index of next byte to be processed in inbuf
-			 * After decompression it will contain the
-			 * compressed size, and head.S will read it.
-			 */
-
-static unsigned outcnt = 0;  /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG   0x01 /* bit 0 set: file probably ascii text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
-#define COMMENT      0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
-#define RESERVED     0xC0 /* bit 6,7:   reserved */
-
-#define get_byte() (inbuf[inptr++])
-
-/* Diagnostic functions */
-#ifdef DEBUG
-#  define Assert(cond, msg) do { \
-		if (!(cond)) \
-			error(msg); \
-	} while (0)
-#  define Trace(x) fprintf x
-#  define Tracev(x) do { \
-		if (verbose) \
-			fprintf x; \
-	} while (0)
-#  define Tracevv(x) do { \
-		if (verbose > 1) \
-			fprintf x; \
-	} while (0)
-#  define Tracec(c, x) do { \
-		if (verbose && (c)) \
-			fprintf x; \
-	} while (0)
-#  define Tracecv(c, x) do { \
-		if (verbose > 1 && (c)) \
-			fprintf x; \
-	} while (0)
-#else
-#  define Assert(cond, msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c, x)
-#  define Tracecv(c, x)
-#endif
-
-static void flush_window(void);
-static void error(char *m);
-static void aputs(const char *s);
-
-extern char *input_data;  /* lives in head.S */
-
-static long bytes_out;
-static uch *output_data;
-static unsigned long output_ptr;
-
-/* the "heap" is put directly after the BSS ends, at end */
-
-extern int _end;
-static long free_mem_ptr = (long)&_end;
-static long free_mem_end_ptr;
-
-#include "../../../../../lib/inflate.c"
-
-/* decompressor info and error messages to serial console */
-
-#ifdef CONFIG_ETRAX_ARCH_V32
-static inline void serout(const char *s, reg_scope_instances regi_ser)
-{
-	reg_ser_rs_stat_din rs;
-	reg_ser_rw_dout dout = {.data = *s};
-
-	do {
-		rs = REG_RD(ser, regi_ser, rs_stat_din);
-	}
-	while (!rs.tr_rdy);/* Wait for transceiver. */
-
-	REG_WR(ser, regi_ser, rw_dout, dout);
-}
-#define SEROUT(S, N) \
-	do { \
-		serout(S, regi_ser ## N); \
-		s++; \
-	} while (0)
-#else
-#define SEROUT(S, N) do { \
-		while (!(*R_SERIAL ## N ## _STATUS & (1 << 5))) \
-			; \
-		*R_SERIAL ## N ## _TR_DATA = *s++; \
-	} while (0)
-#endif
-
-static void aputs(const char *s)
-{
-#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
-	while (*s) {
-#ifdef CONFIG_ETRAX_DEBUG_PORT0
-		SEROUT(s, 0);
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT1
-		SEROUT(s, 1);
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT2
-		SEROUT(s, 2);
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT3
-		SEROUT(s, 3);
-#endif
-	}
-#endif /* CONFIG_ETRAX_DEBUG_PORT_NULL */
-}
-
-void *memset(void *s, int c, size_t n)
-{
-	int i;
-	char *ss = (char*)s;
-
-	for (i=0;i<n;i++) ss[i] = c;
-
-	return s;
-}
-
-void *memcpy(void *__dest, __const void *__src, size_t __n)
-{
-	int i;
-	char *d = (char *)__dest, *s = (char *)__src;
-
-	for (i = 0; i < __n; i++)
-		d[i] = s[i];
-
-	return __dest;
-}
-
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-
-static void flush_window(void)
-{
-	ulg c = crc;         /* temporary variable */
-	unsigned n;
-	uch *in, *out, ch;
-
-	in = window;
-	out = &output_data[output_ptr];
-	for (n = 0; n < outcnt; n++) {
-		ch = *out = *in;
-		out++;
-		in++;
-		c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
-	}
-	crc = c;
-	bytes_out += (ulg)outcnt;
-	output_ptr += (ulg)outcnt;
-	outcnt = 0;
-}
-
-static void error(char *x)
-{
-	aputs("\n\n");
-	aputs(x);
-	aputs("\n\n -- System halted\n");
-
-	while(1);	/* Halt */
-}
-
-void setup_normal_output_buffer(void)
-{
-	output_data = (char *)KERNEL_LOAD_ADR;
-}
-
-#ifdef CONFIG_ETRAX_ARCH_V32
-static inline void serial_setup(reg_scope_instances regi_ser)
-{
-	reg_ser_rw_xoff xoff;
-	reg_ser_rw_tr_ctrl tr_ctrl;
-	reg_ser_rw_rec_ctrl rec_ctrl;
-	reg_ser_rw_tr_baud_div tr_baud;
-	reg_ser_rw_rec_baud_div rec_baud;
-
-	/* Turn off XOFF. */
-	xoff = REG_RD(ser, regi_ser, rw_xoff);
-
-	xoff.chr = 0;
-	xoff.automatic = regk_ser_no;
-
-	REG_WR(ser, regi_ser, rw_xoff, xoff);
-
-	/* Set baudrate and stopbits. */
-	tr_ctrl = REG_RD(ser, regi_ser, rw_tr_ctrl);
-	rec_ctrl = REG_RD(ser, regi_ser, rw_rec_ctrl);
-	tr_baud = REG_RD(ser, regi_ser, rw_tr_baud_div);
-	rec_baud = REG_RD(ser, regi_ser, rw_rec_baud_div);
-
-	tr_ctrl.stop_bits = 1;	/* 2 stop bits. */
-	tr_ctrl.en = 1; /* enable transmitter */
-	rec_ctrl.en = 1; /* enabler receiver */
-
-	/*
-	 * The baudrate setup used to be a bit fishy, but now transmitter and
-	 * receiver are both set to the intended baud rate, 115200.
-	 * The magic value is 29.493 MHz.
-	 */
-	tr_ctrl.base_freq = regk_ser_f29_493;
-	rec_ctrl.base_freq = regk_ser_f29_493;
-	tr_baud.div = (29493000 / 8) / 115200;
-	rec_baud.div = (29493000 / 8) / 115200;
-
-	REG_WR(ser, regi_ser, rw_tr_ctrl, tr_ctrl);
-	REG_WR(ser, regi_ser, rw_tr_baud_div, tr_baud);
-	REG_WR(ser, regi_ser, rw_rec_ctrl, rec_ctrl);
-	REG_WR(ser, regi_ser, rw_rec_baud_div, rec_baud);
-}
-#endif
-
-void decompress_kernel(void)
-{
-	char revision;
-	char compile_rev;
-
-#ifdef CONFIG_ETRAX_ARCH_V32
-	/* Need at least a CRISv32 to run. */
-	compile_rev = 32;
-#if defined(CONFIG_ETRAX_DEBUG_PORT1) || \
-    defined(CONFIG_ETRAX_DEBUG_PORT2) || \
-    defined(CONFIG_ETRAX_DEBUG_PORT3)
-	reg_pinmux_rw_hwprot hwprot;
-
-#ifdef CONFIG_CRIS_MACH_ARTPEC3
-	reg_clkgen_rw_clk_ctrl clk_ctrl;
-
-	/* Enable corresponding clock region when serial 1..3 selected */
-
-	clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
-	clk_ctrl.sser_ser_dma6_7 = regk_clkgen_yes;
-	REG_WR(clkgen, regi_clkgen, rw_clk_ctrl, clk_ctrl);
-#endif
-
-	/* pinmux setup for ports 1..3 */
-	hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot);
-#endif
-
-
-#ifdef CONFIG_ETRAX_DEBUG_PORT0
-	serial_setup(regi_ser0);
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT1
-	hwprot.ser1 = regk_pinmux_yes;
-	serial_setup(regi_ser1);
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT2
-	hwprot.ser2 = regk_pinmux_yes;
-	serial_setup(regi_ser2);
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT3
-	hwprot.ser3 = regk_pinmux_yes;
-	serial_setup(regi_ser3);
-#endif
-#if defined(CONFIG_ETRAX_DEBUG_PORT1) || \
-    defined(CONFIG_ETRAX_DEBUG_PORT2) || \
-    defined(CONFIG_ETRAX_DEBUG_PORT3)
-	REG_WR(pinmux, regi_pinmux, rw_hwprot, hwprot);
-#endif
-
-	/* input_data is set in head.S */
-	inbuf = input_data;
-#else /* CRISv10 */
-	/* Need at least a crisv10 to run. */
-	compile_rev = 10;
-
-	/* input_data is set in head.S */
-	inbuf = input_data;
-
-#ifdef CONFIG_ETRAX_DEBUG_PORT0
-	*R_SERIAL0_XOFF = 0;
-	*R_SERIAL0_BAUD = 0x99;
-	*R_SERIAL0_TR_CTRL = 0x40;
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT1
-	*R_SERIAL1_XOFF = 0;
-	*R_SERIAL1_BAUD = 0x99;
-	*R_SERIAL1_TR_CTRL = 0x40;
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT2
-	*R_GEN_CONFIG = 0x08;
-	*R_SERIAL2_XOFF = 0;
-	*R_SERIAL2_BAUD = 0x99;
-	*R_SERIAL2_TR_CTRL = 0x40;
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT3
-	*R_GEN_CONFIG = 0x100;
-	*R_SERIAL3_XOFF = 0;
-	*R_SERIAL3_BAUD = 0x99;
-	*R_SERIAL3_TR_CTRL = 0x40;
-#endif
-#endif
-
-	setup_normal_output_buffer();
-
-	makecrc();
-
-	__asm__ volatile ("move $vr,%0" : "=rm" (revision));
-	if (revision < compile_rev) {
-#ifdef CONFIG_ETRAX_ARCH_V32
-		aputs("You need at least ETRAX FS to run Linux 2.6/crisv32\n");
-#else
-		aputs("You need an ETRAX 100LX to run linux 2.6/crisv10\n");
-#endif
-		while(1);
-	}
-
-	aputs("Uncompressing Linux...\n");
-	gunzip();
-	aputs("Done. Now booting the kernel\n");
-}