CRIS: Merge machine dependent boot/compressed and boot/rescue

Merge the machine dependent boot directories for v10 and v32.
This avoids some code duplication and eases the way for further
merging later on.

Signed-off-by: Jesper Nilsson <[e-mail]>

arch/cris/Makefile

···
 # cris object files path
 OBJ_ARCH              = $(objtree)/arch/cris
 
-boot := arch/cris/$(SARCH)/boot
+boot := arch/cris/boot
 MACHINE := arch/cris/$(SARCH)
 
 all: zImage
···
 archprepare:
 
 archclean:
-	$(Q)if [ -e arch/cris/$(SARCH)/boot ]; then \
-		$(MAKE) $(clean)=arch/cris/$(SARCH)/boot; \
+	$(Q)if [ -e arch/cris/boot ]; then \
+		$(MAKE) $(clean)=arch/cris/boot; \
 	fi
 
 CLEAN_FILES += \
-	$(MACHINE)/boot/zImage \
-	$(MACHINE)/boot/compressed/decompress.bin \
-	$(MACHINE)/boot/compressed/piggy.gz \
-	$(MACHINE)/boot/rescue/rescue.bin
+	$(boot)/zImage \
+	$(boot)/compressed/decompress.bin \
+	$(boot)/compressed/piggy.gz \
+	$(boot)/rescue/rescue.bin
 
 
 # MRPROPER_FILES +=

arch/cris/arch-v10/boot/Makefile arch/cris/boot/Makefile

···
 #
-# arch/cris/arch-v10/boot/Makefile
+# arch/cris/boot/Makefile
 #
 
-OBJCOPYFLAGS = -O binary --remove-section=.bss
+objcopyflags-$(CONFIG_ETRAX_ARCH_V10) += -R .note -R .comment
+objcopyflags-$(CONFIG_ETRAX_ARCH_V32) += --remove-section=.bss
+
+OBJCOPYFLAGS = -O binary $(objcopyflags-y)
+
 
 subdir- := compressed rescue
 targets := Image

arch/cris/arch-v10/boot/compressed/Makefile arch/cris/boot/compressed/Makefile

···
 #
-# arch/cris/arch-v10/boot/compressed/Makefile
+# arch/cris/boot/compressed/Makefile
 #
 
 asflags-y += $(LINUXINCLUDE)
 ccflags-y += -O2 $(LINUXINCLUDE)
-ldflags-y += -T $(srctree)/$(src)/decompress.lds
-OBJECTS = $(obj)/head.o $(obj)/misc.o
+
+# asflags-$(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   $@
···
 
 $(obj)/piggy.gz: $(obj)/../Image FORCE
 	$(call if_changed,gzip)
-

arch/cris/arch-v10/boot/compressed/README

···
-Creation of the self-extracting compressed kernel image (vmlinuz)
------------------------------------------------------------------
-$Id: README,v 1.1 2001/12/17 13:59:27 bjornw Exp $
-
-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

arch/cris/arch-v10/boot/compressed/head.S arch/cris/boot/compressed/head_v10.S

···
 	beq	dram_init_finished
 	nop
 
-#include "../../lib/dram_init.S"
+#include "../../arch-v10/lib/dram_init.S"
 
 dram_init_finished:
 
···
 	.dword 0
 _cmd_line_addr:
 	.dword 0
-#include "../../lib/hw_settings.S"
+#include "../../arch-v10/lib/hw_settings.S"

arch/cris/arch-v10/boot/compressed/misc.c

···
-/*
- * 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>
-#include <arch/svinto.h>
-
-/*
- * 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);
-
-extern char *input_data;  /* lives in head.S */
-
-static long bytes_out = 0;
-static uch *output_data;
-static unsigned long output_ptr = 0;
-static void puts(const char *);
-
-/* 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 */
-
-static void
-puts(const char *s)
-{
-#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
-	while (*s) {
-#ifdef CONFIG_ETRAX_DEBUG_PORT0
-		while (!(*R_SERIAL0_STATUS & (1 << 5))) ;
-		*R_SERIAL0_TR_DATA = *s++;
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT1
-		while (!(*R_SERIAL1_STATUS & (1 << 5))) ;
-		*R_SERIAL1_TR_DATA = *s++;
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT2
-		while (!(*R_SERIAL2_STATUS & (1 << 5))) ;
-		*R_SERIAL2_TR_DATA = *s++;
-#endif
-#ifdef CONFIG_ETRAX_DEBUG_PORT3
-		while (!(*R_SERIAL3_STATUS & (1 << 5))) ;
-		*R_SERIAL3_TR_DATA = *s++;
-#endif
-	}
-#endif
-}
-
-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)
-{
-	puts("\n\n");
-	puts(x);
-	puts("\n\n -- System halted\n");
-
-	while (1);	/* Halt */
-}
-
-void setup_normal_output_buffer(void)
-{
-	output_data = (char *)KERNEL_LOAD_ADR;
-}
-
-void decompress_kernel(void)
-{
-	char revision;
-
-	/* 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
-
-	setup_normal_output_buffer();
-
-	makecrc();
-
-	__asm__ volatile ("move $vr,%0" : "=rm" (revision));
-	if (revision < 10) {
-		puts("You need an ETRAX 100LX to run linux 2.6\n");
-		while (1);
-	}
-
-	puts("Uncompressing Linux...\n");
-	gunzip();
-	puts("Done. Now booting the kernel.\n");
-}

arch/cris/arch-v10/boot/rescue/Makefile arch/cris/boot/rescue/Makefile

···
 # Makefile for rescue (bootstrap) code
 #
 
-ccflags-y += -O2 $(LINUXINCLUDE)
+# CC = gcc-cris -mlinux -march=v32 $(LINUXINCLUDE)
+# ccflags-$(CONFIG_ETRAX_ARCH_V32) += -I$(srctree)/include/asm/arch/mach/ \
+# 				    -I$(srctree)/include/asm/arch
+# asflags-y += -I $(srctree)/include/asm/arch/mach/ -I $(srctree)/include/asm/arch
+# LD = gcc-cris -mlinux -march=v32 -nostdlib
+
 asflags-y += $(LINUXINCLUDE)
-ldflags-y += -T $(srctree)/$(src)/rescue.lds
+ccflags-y += -O2 $(LINUXINCLUDE)
+arch-$(CONFIG_ETRAX_ARCH_V10) = v10
+arch-$(CONFIG_ETRAX_ARCH_V32) = v32
+
+ldflags-y += -T $(srctree)/$(src)/rescue_$(arch-y).lds
 OBJCOPYFLAGS = -O binary --remove-section=.bss
-obj-$(CONFIG_ETRAX_AXISFLASHMAP) = head.o
-OBJECT := $(obj)/head.o
+obj-$(CONFIG_ETRAX_ARCH_V32) = $(obj)/head_v32.o
+obj-$(CONFIG_ETRAX_ARCH_V10) = $(obj)/head_v10.o
+OBJECTS := $(obj-y)
 
 targets := rescue.o rescue.bin
 
-$(obj)/rescue.o: $(OBJECT) FORCE
+$(obj)/rescue.o: $(OBJECTS) FORCE
 	$(call if_changed,ld)
 
 $(obj)/rescue.bin: $(obj)/rescue.o FORCE
···
 	dd if=testrescue_tmp.bin of=$(obj)/testrescue.bin bs=1 count=784
 	rm tr.bin tmp2423 testrescue_tmp.bin
 
+
 $(obj)/kimagerescue.bin: $(obj)/kimagerescue.o
 	$(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/kimagerescue.o ktr.bin
 # Pad it to 784 bytes, that's what the rescue loader expects
···
 	cat ktr.bin tmp2423 >kimagerescue_tmp.bin
 	dd if=kimagerescue_tmp.bin of=$(obj)/kimagerescue.bin bs=1 count=784
 	rm ktr.bin tmp2423 kimagerescue_tmp.bin
+

arch/cris/arch-v10/boot/rescue/head.S arch/cris/boot/rescue/head_v10.S

···
 #endif
 
 	;; We need to setup the bus registers before we start using the DRAM
-#include "../../lib/dram_init.S"
+#include "../../../arch-v10/lib/dram_init.S"
 
 	;; we now should go through the checksum-table and check the listed
 	;; partitions for errors.

arch/cris/arch-v32/boot/Makefile

···
-#
-# arch/cris/arch-v32/boot/Makefile
-#
-
-OBJCOPYFLAGS = -O binary -R .note -R .comment
-
-subdir- := compressed rescue
-targets := Image
-
-$(obj)/Image: vmlinux FORCE
-	$(call if_changed,objcopy)
-	@echo '  Kernel: $@ is ready'
-
-$(obj)/compressed/vmlinux: $(obj)/Image FORCE
-	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
-	$(Q)$(MAKE) $(build)=$(obj)/rescue $(obj)/rescue/rescue.bin
-
-$(obj)/zImage:  $(obj)/compressed/vmlinux
-	@cp $< $@
-	@echo '  Kernel: $@ is ready'

arch/cris/arch-v32/boot/compressed/Makefile

···
-#
-# arch/cris/arch-v32/boot/compressed/Makefile
-#
-
-asflags-y += -I$(srctree)/include/asm/mach/ -I$(srctree)/include/asm/arch
-ccflags-y += -O2 -I$(srctree)/include/asm/mach/ -I$(srctree)/include/asm/arch
-ldflags-y += -T$(srctree)/$(src)/decompress.lds
-OBJECTS = $(obj)/head.o $(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)

arch/cris/arch-v32/boot/compressed/head.S arch/cris/boot/compressed/head_v32.S

···
 	.globl	input_data
 
 	.text
-_start:
+start:
 	di
 
 	;; Start clocks for used blocks.
···
 	nop
 
 #if defined CONFIG_ETRAXFS
-#include "../../mach-fs/dram_init.S"
+#include "../../arch-v32/mach-fs/dram_init.S"
 #elif defined CONFIG_CRIS_MACH_ARTPEC3
-#include "../../mach-a3/dram_init.S"
+#include "../../arch-v32/mach-a3/dram_init.S"
 #else
 #error Only ETRAXFS and ARTPEC-3 supported!
 #endif
···
 	.dword 0
 
 #if defined CONFIG_ETRAXFS
-#include "../../mach-fs/hw_settings.S"
+#include "../../arch-v32/mach-fs/hw_settings.S"
 #elif defined CONFIG_CRIS_MACH_ARTPEC3
-#include "../../mach-a3/hw_settings.S"
+#include "../../arch-v32/mach-a3/hw_settings.S"
 #else
 #error Only ETRAXFS and ARTPEC-3 supported!
 #endif

arch/cris/arch-v32/boot/compressed/misc.c arch/cris/boot/compressed/misc.c

···
 
 #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
 
 /*
···
 #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);
+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))
-
+#define memzero(s, n)     memset((s), 0, (n))
 
 typedef unsigned char  uch;
 typedef unsigned short ush;
···
 #define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
 #define RESERVED     0xC0 /* bit 6,7:   reserved */
 
-#define get_byte() inbuf[inptr++]
+#define get_byte() (inbuf[inptr++])
 
 /* Diagnostic functions */
 #ifdef DEBUG
-#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  define Assert(cond, msg) do { \
+		if (!(cond)) \
+			error(msg); \
+	} while (0)
 #  define Trace(x) fprintf x
-#  define Tracev(x) {if (verbose) fprintf x ;}
-#  define Tracevv(x) {if (verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (verbose>1 && (c)) 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 Assert(cond, msg)
 #  define Trace(x)
 #  define Tracev(x)
 #  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
+#  define Tracec(c, x)
+#  define Tracecv(c, x)
 #endif
 
 static void flush_window(void);
 static void error(char *m);
+static void puts(const char *);
 
 extern char *input_data;  /* lives in head.S */
 
 static long bytes_out;
 static uch *output_data;
 static unsigned long output_ptr;
-
-static void error(char *m);
-
-static void puts(const char *);
 
 /* the "heap" is put directly after the BSS ends, at end */
 
···
 
 /* decompressor info and error messages to serial console */
 
-static inline void
-serout(const char *s, reg_scope_instances regi_ser)
+#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};
···
 
 	REG_WR(ser, regi_ser, rw_dout, dout);
 }
+#endif
 
-static void
-puts(const char *s)
+static void puts(const char *s)
 {
 #ifndef CONFIG_ETRAX_DEBUG_PORT_NULL
 	while (*s) {
 #ifdef CONFIG_ETRAX_DEBUG_PORT0
+#ifdef CONFIG_ETRAX_ARCH_V32
 		serout(s, regi_ser0);
+#else
+		while (!(*R_SERIAL0_STATUS & (1 << 5)))
+			;
+		*R_SERIAL0_TR_DATA = *s++;
+#endif
 #endif
 #ifdef CONFIG_ETRAX_DEBUG_PORT1
+#ifdef CONFIG_ETRAX_ARCH_V32
 		serout(s, regi_ser1);
+#else
+		while (!(*R_SERIAL1_STATUS & (1 << 5)))
+			;
+		*R_SERIAL1_TR_DATA = *s++;
+#endif
 #endif
 #ifdef CONFIG_ETRAX_DEBUG_PORT2
+#ifdef CONFIG_ETRAX_ARCH_V32
 		serout(s, regi_ser2);
+#else
+		while (!(*R_SERIAL2_STATUS & (1 << 5)))
+			;
+		*R_SERIAL2_TR_DATA = *s++;
+#endif
 #endif
 #ifdef CONFIG_ETRAX_DEBUG_PORT3
+#ifdef CONFIG_ETRAX_ARCH_V32
 		serout(s, regi_ser3);
+#else
+		while (!(*R_SERIAL3_STATUS & (1 << 5)))
+			;
+		*R_SERIAL3_TR_DATA = *s++;
+#endif
 #endif
 		*s++;
 	}
···
 #endif
 }
 
-void*
-memset(void* s, int c, size_t n)
+void *memset(void *s, int c, size_t n)
 {
 	int i;
 	char *ss = (char*)s;
···
 	return s;
 }
 
-void*
-memcpy(void* __dest, __const void* __src,
-			    size_t __n)
+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];
+	for (i = 0; i < __n; i++)
+		d[i] = s[i];
 
 	return __dest;
 }
···
  * (Used for the decompressed data only.)
  */
 
-static void
-flush_window()
+static void flush_window(void)
 {
-    ulg c = crc;         /* temporary variable */
-    unsigned n;
-    uch *in, *out, ch;
+	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++;
-	    c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
-    }
-    crc = c;
-    bytes_out += (ulg)outcnt;
-    output_ptr += (ulg)outcnt;
-    outcnt = 0;
+	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)
+static void error(char *x)
 {
-	puts("\r\n\n");
+	puts("\n\n");
 	puts(x);
-	puts("\r\n\n -- System halted\n");
+	puts("\n\n -- System halted\n");
 
 	while(1);	/* Halt */
 }
 
-void
-setup_normal_output_buffer(void)
+void setup_normal_output_buffer(void)
 {
 	output_data = (char *)KERNEL_LOAD_ADR;
 }
 
-static inline void
-serial_setup(reg_scope_instances regi_ser)
+#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_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)
+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)
···
 	/* pinmux setup for ports 1..3 */
 	hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot);
 #endif
+
 
 #ifdef CONFIG_ETRAX_DEBUG_PORT0
 	serial_setup(regi_ser0);
···
 
 	/* 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 < 32)
-	{
-		puts("You need an ETRAX FS to run Linux 2.6/crisv32.\r\n");
+	if (revision < compile_rev) {
+#ifdef CONFIG_ETRAX_ARCH_V32
+		puts("You need an ETRAX FS to run Linux 2.6/crisv32\n");
+#else
+		puts("You need an ETRAX 100LX to run linux 2.6\n");
+#endif
 		while(1);
 	}
 
-	puts("Uncompressing Linux...\r\n");
+	puts("Uncompressing Linux...\n");
 	gunzip();
-	puts("Done. Now booting the kernel.\r\n");
+	puts("Done. Now booting the kernel\n");
 }

arch/cris/arch-v32/boot/rescue/Makefile

···
-#
-# Makefile for rescue (bootstrap) code
-#
-
-CC = gcc-cris -mlinux -march=v32 $(LINUXINCLUDE)
-ccflags-y += -O2 -I $(srctree)/include/asm/arch/mach/ \
-		-I $(srctree)/include/asm/arch
-asflags-y += -I $(srctree)/include/asm/arch/mach/ -I $(srctree)/include/asm/arch
-LD = gcc-cris -mlinux -march=v32 -nostdlib
-ldflags-y += -T $(srctree)/$(src)/rescue.lds
-LDPOSTFLAGS = -lgcc
-OBJCOPYFLAGS = -O binary --remove-section=.bss
-obj-$(CONFIG_ETRAX_AXISFLASHMAP) = head.o
-OBJECT := $(obj)/head.o
-
-targets := rescue.o rescue.bin
-
-quiet_cmd_ldlibgcc = LD      $@
-cmd_ldlibgcc = $(LD) $(LDFLAGS) $(filter-out FORCE,$^) $(LDPOSTFLAGS) -o $@
-
-$(obj)/rescue.o: $(OBJECTS) FORCE
-	$(call if_changed,ldlibgcc)
-
-$(obj)/rescue.bin: $(obj)/rescue.o FORCE
-	$(call if_changed,objcopy)
-	cp -p $(obj)/rescue.bin $(objtree)