[PATCH] m32r architecture

Add support for the m32r architecture
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

arch/m32r/Makefile

+#
+# m32r/Makefile
+#
+
+LDFLAGS		:=
+OBJCOPYFLAGS	:= -O binary -R .note -R .comment -S
+LDFLAGS_vmlinux	:= -e startup_32
+LDFLAGS_BLOB	:= --format binary --oformat elf32-m32r
+
+CFLAGS += -pipe -fno-schedule-insns
+CFLAGS_KERNEL += -mmodel=medium
+CFLAGS_MODULE += -mmodel=large
+
+ifdef CONFIG_CHIP_VDEC2
+cflags-$(CONFIG_ISA_M32R2)	+= -DNO_FPU -Wa,-bitinst
+aflags-$(CONFIG_ISA_M32R2)	+= -DNO_FPU -Wa,-bitinst
+else
+cflags-$(CONFIG_ISA_M32R2)	+= -DNO_FPU -m32r2
+aflags-$(CONFIG_ISA_M32R2)	+= -DNO_FPU -m32r2
+endif
+
+cflags-$(CONFIG_ISA_M32R)	+= -DNO_FPU
+aflags-$(CONFIG_ISA_M32R)	+= -DNO_FPU -Wa,-no-bitinst
+
+CFLAGS += $(cflags-y)
+AFLAGS += $(aflags-y)
+
+head-y	:= arch/m32r/kernel/head.o arch/m32r/kernel/init_task.o
+
+LIBGCC	:= $(shell $(CC) $(CFLAGS) -print-libgcc-file-name)
+
+libs-y	+= arch/m32r/lib/ $(LIBGCC)
+core-y	+= arch/m32r/kernel/	\
+	   arch/m32r/mm/	\
+	   arch/m32r/boot/	\
+	   arch/m32r/drivers/
+drivers-$(CONFIG_OPROFILE)	+= arch/m32r/oprofile/
+

arch/m32r/boot/Makefile

+#
+# arch/m32r/boot/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+
+targets := zImage
+subdir- := compressed
+
+obj-y	:= setup.o
+
+$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
+	$(call if_changed,objcopy)
+	@echo 'Kernel: $@ is ready'
+
+$(obj)/compressed/vmlinux: FORCE
+	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
+

arch/m32r/boot/compressed/Makefile

+#
+# linux/arch/sh/boot/compressed/Makefile
+#
+# create a compressed vmlinux image from the original vmlinux
+#
+
+targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o \
+		   m32r-sio.o piggy.o vmlinux.lds.s
+EXTRA_AFLAGS	:= -traditional
+
+OBJECTS = $(obj)/head.o $(obj)/misc.o $(obj)/m32r_sio.o
+
+#
+# IMAGE_OFFSET is the load offset of the compression loader
+#
+IMAGE_OFFSET := $(shell printf "0x%08x" $$[$(CONFIG_MEMORY_START)+0x1000])
+
+LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -e startup -T
+
+$(obj)/vmlinux: $(obj)/vmlinux.lds.s $(OBJECTS) $(obj)/piggy.o FORCE
+	$(call if_changed,ld)
+	@:
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+$(obj)/vmlinux.lds.s: $(obj)/vmlinux.lds.S FORCE
+	$(CPP) -E -P $< >$@
+
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-m32r-linux -T
+#OBJCOPYFLAGS += -R .empty_zero_page
+
+$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
+	$(call if_changed,ld)

arch/m32r/boot/compressed/boot.h

+/*
+ * 1. load vmlinuz
+ *
+ * CONFIG_MEMORY_START  	+-----------------------+
+ *				|        vmlinuz	|
+ *				+-----------------------+
+ * 2. decompressed
+ *
+ * CONFIG_MEMORY_START  	+-----------------------+
+ *				|        vmlinuz	|
+ *				+-----------------------+
+ *				|			|
+ * BOOT_RELOC_ADDR		+-----------------------+
+ *				|		 	|
+ * KERNEL_DECOMPRESS_ADDR 	+-----------------------+
+ *				|  	vmlinux		|
+ *				+-----------------------+
+ *
+ * 3. relocate copy & jump code
+ *
+ * CONFIG_MEMORY_START  	+-----------------------+
+ *				|        vmlinuz	|
+ *				+-----------------------+
+ *				|			|
+ * BOOT_RELOC_ADDR		+-----------------------+
+ *				|    boot(copy&jump)	|
+ * KERNEL_DECOMPRESS_ADDR 	+-----------------------+
+ *				|  	vmlinux		|
+ *				+-----------------------+
+ *
+ * 4. relocate decompressed kernel
+ *
+ * CONFIG_MEMORY_START  	+-----------------------+
+ *				|        vmlinux	|
+ *				+-----------------------+
+ *				|			|
+ * BOOT_RELOC_ADDR		+-----------------------+
+ *				|     boot(copy&jump) 	|
+ * KERNEL_DECOMPRESS_ADDR 	+-----------------------+
+ *				|  			|
+ *				+-----------------------+
+ *
+ */
+#ifdef __ASSEMBLY__
+#define __val(x)	x
+#else
+#define __val(x)	(x)
+#endif
+
+#define DECOMPRESS_OFFSET_BASE	__val(0x00900000)
+#define BOOT_RELOC_SIZE		__val(0x00001000)
+
+#define KERNEL_EXEC_ADDR	__val(CONFIG_MEMORY_START)
+#define KERNEL_DECOMPRESS_ADDR	__val(CONFIG_MEMORY_START + \
+				      DECOMPRESS_OFFSET_BASE + BOOT_RELOC_SIZE)
+#define KERNEL_ENTRY		__val(CONFIG_MEMORY_START + 0x1000)
+
+#define BOOT_EXEC_ADDR		__val(CONFIG_MEMORY_START)
+#define BOOT_RELOC_ADDR		__val(CONFIG_MEMORY_START + DECOMPRESS_OFFSET_BASE)

arch/m32r/boot/compressed/head.S

+/*
+ *  linux/arch/m32r/boot/compressed/head.S
+ *
+ *  Copyright (c) 2001-2003	Hiroyuki Kondo, Hirokazu Takata,
+ *				Hitoshi Yamamoto, Takeo Takahashi
+ */
+
+	.text
+#include <linux/config.h>
+#include <linux/linkage.h>
+#include <asm/addrspace.h>
+#include <asm/page.h>
+#include <asm/assembler.h>
+#include "boot.h"
+
+	.global	startup
+	__ALIGN
+startup:
+	ldi	r0, #0x0000			/* SPI, disable EI */
+	mvtc	r0, psw
+
+/*
+ * Clear BSS first so that there are no surprises...
+ */
+#ifdef CONFIG_ISA_DUAL_ISSUE
+
+	LDIMM	(r2, __bss_start)
+	LDIMM	(r3, _end)
+	sub	r3, r2		; BSS size in bytes
+	; R4 = BSS size in longwords (rounded down)
+	mv	r4, r3		    ||	ldi	r1, #0
+	srli	r4, #4		    ||	addi	r2, #-4
+	beqz	r4, .Lendloop1
+.Lloop1:
+#ifndef CONFIG_CHIP_M32310
+	; Touch memory for the no-write-allocating cache.
+	ld	r0, @(4,r2)
+#endif
+	st	r1, @+r2	    ||	addi	r4, #-1
+	st	r1, @+r2
+	st	r1, @+r2
+	st	r1, @+r2	    ||	cmpeq	r1, r4	; R4 = 0?
+	bnc	.Lloop1
+.Lendloop1:
+	and3	r4, r3, #15
+	addi	r2, #4
+	beqz	r4, .Lendloop2
+.Lloop2:
+	stb	r1, @r2		    ||	addi	r4, #-1
+	addi	r2, #1
+	bnez	r4, .Lloop2
+.Lendloop2:
+
+#else /* not CONFIG_ISA_DUAL_ISSUE */
+
+	LDIMM	(r2, __bss_start)
+	LDIMM	(r3, _end)
+	sub	r3, r2		; BSS size in bytes
+	mv	r4, r3
+	srli	r4, #2		; R4 = BSS size in longwords (rounded down)
+	ldi	r1, #0		; clear R1 for longwords store
+	addi	r2, #-4		; account for pre-inc store
+	beqz	r4, .Lendloop1	; any more to go?
+.Lloop1:
+	st	r1, @+r2	; yep, zero out another longword
+	addi	r4, #-1		; decrement count
+	bnez	r4, .Lloop1	; go do some more
+.Lendloop1:
+	and3	r4, r3, #3	; get no. of remaining BSS bytes to clear
+	addi	r2, #4		; account for pre-inc store
+	beqz	r4, .Lendloop2	; any more to go?
+.Lloop2:
+	stb	r1, @r2		; yep, zero out another byte
+	addi	r2, #1		; bump address
+	addi	r4, #-1		; decrement count
+	bnez	r4, .Lloop2	; go do some more
+.Lendloop2:
+
+#endif /* not CONFIG_ISA_DUAL_ISSUE */
+
+	seth	r0, #shigh(stack_start)
+	ld	sp, @(r0, low(stack_start))	/* set stack point */
+
+/*
+ * decompress the kernel
+ */
+	bl	decompress_kernel
+	mv	r12, r0 		/* size of decompressed kernel */
+
+/*
+ * relocate copy routine & jump routine
+ */
+	LDIMM	(r1, BOOT_RELOC_ADDR)
+	mv	r5, r1		; save reloc addr to jump
+
+	LDIMM	(r2, startup_reloc)
+	LDIMM	(r3, exit_reloc)
+	sub	r3, r2		; relocated code size in bytes
+	mv	r4, r3
+	srli	r4, #2		; R4 = code size in longwords (rounded down)
+	addi	r1, #-4		; account for pre-inc store
+	beqz	r4, 2f		; any more to go?
+	.fillinsn
+1:
+	ld	r6, @r2+	; code to be relocated
+	st	r6, @+r1	; relocate code
+	addi	r4, #-1		; decrement count
+	bnez	r4, 1b		; go do some more
+	.fillinsn
+2:
+	and3	r4, r3, #3	; get no. of remaining bytes
+	addi	r1, #4		; account for pre-inc store
+	beqz	r4, 4f		; any more to go?
+	.fillinsn
+3:
+	ldb	r6, @r2		; code to be relocated
+	stb	r6, @r1		; relocate code
+	addi	r1, #1		; bump address
+	addi	r2, #1		; bump address
+	addi	r4, #-1		; decrement count
+	bnez	r4, 3b		; go do some more
+	.fillinsn
+4:
+	jmp	r5		; jump to relocated code
+
+/*
+ * startup_reloc runs on BOOT_RELOC_ADDR.
+ * copy decompressed kernel to original location
+ */
+	.text
+	__ALIGN
+startup_reloc:
+	LDIMM	(r1, CONFIG_MEMORY_START)
+	LDIMM	(r2, KERNEL_DECOMPRESS_ADDR)
+	mv	r4, r12		; r12 holds size of decompressed kernel
+	srli	r4, #2		; R4 = code size in longwords (rounded down)
+	addi	r1, #-4		; account for pre-inc store
+	beqz	r4, 2f		; any more to go?
+	.fillinsn
+1:
+	ld	r6, @r2+	; code to be relocated
+	st	r6, @+r1	; relocate code
+	addi	r4, #-1		; decrement count
+	bnez	r4, 1b		; go do some more
+	.fillinsn
+2:
+	and3	r4, r12, #3	; get no. of remaining bytes
+	addi	r1, #4		; account for pre-inc store
+	beqz	r4, 4f		; any more to go?
+	.fillinsn
+3:
+	ldb	r6, @r2		; code to be relocated
+	stb	r6, @r1		; relocate code
+	addi	r1, #1		; bump address
+	addi	r2, #1		; bump address
+	addi	r4, #-1		; decrement count
+	bnez	r4, 3b		; go do some more
+	.fillinsn
+4:
+	/*
+	 * invalidate i-cache before jump to kernel
+	 */
+#if defined(CONFIG_CHIP_VDEC2)
+	ldi	r0, #-1
+	ldi	r1, #0xc0	; invalidate i-cache
+	stb	r1, @r0
+#elif defined(CONFIG_CHIP_XNUX2)
+	ldi	r0, #-2
+	ldi	r1, #0x0100	; invalidate
+	sth	r1, @r0
+#elif defined(CONFIG_CHIP_M32700)
+	ldi	r0, #-1		; MCCR(cache control register)
+	ldi	r1, #0xc0	; invalidate i-cache
+	stb	r1, @r0
+#else
+#error unknown chip configuration
+#endif
+	LDIMM	(r0, KERNEL_ENTRY)
+	jmp	r0				/* jump to kernel */
+
+	__ALIGN
+exit_reloc:
+
+	.balign 4096
+.fake_empty_zero_page:
+	/* FIXME: correct table value */
+	.word	0
+	.ascii	"HdrS"
+	.word	0x0202
+	.word	0
+	.word	0
+	.word	0x1000
+	.word	0
+	.byte	0
+	.byte	1
+	.word	0x8000
+	.long	0
+	.long	0
+
+	.section	.fake_eit_vector, "aw"
+	.long	0
+

arch/m32r/boot/compressed/install.sh

+#!/bin/sh
+#
+# arch/sh/boot/install.sh
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1995 by Linus Torvalds
+#
+# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
+# Adapted from code in arch/i386/boot/install.sh by Russell King
+# Adapted from code in arch/arm/boot/install.sh by Stuart Menefy
+# Adapted from code in arch/sh/boot/install.sh by Takeo Takahashi
+#
+# "make install" script for sh architecture
+#
+# Arguments:
+#   $1 - kernel version
+#   $2 - kernel image file
+#   $3 - kernel map file
+#   $4 - default install path (blank if root directory)
+#
+
+# User may have a custom install script
+
+if [ -x /sbin/installkernel ]; then
+  exec /sbin/installkernel "$@"
+fi
+
+if [ "$2" = "zImage" ]; then
+# Compressed install
+  echo "Installing compressed kernel"
+  if [ -f $4/vmlinuz-$1 ]; then
+    mv $4/vmlinuz-$1 $4/vmlinuz.old
+  fi
+
+  if [ -f $4/System.map-$1 ]; then
+    mv $4/System.map-$1 $4/System.old
+  fi
+
+  cat $2 > $4/vmlinuz-$1
+  cp $3 $4/System.map-$1
+else
+# Normal install
+  echo "Installing normal kernel"
+  if [ -f $4/vmlinux-$1 ]; then
+    mv $4/vmlinux-$1 $4/vmlinux.old
+  fi
+
+  if [ -f $4/System.map ]; then
+    mv $4/System.map $4/System.old
+  fi
+
+  cat $2 > $4/vmlinux-$1
+  cp $3 $4/System.map
+fi

arch/m32r/boot/compressed/m32r_sio.c

+/*
+ * arch/m32r/boot/compressed/m32r_sio.c
+ *
+ * 2003-02-12:	Takeo Takahashi
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/m32r.h>
+#include <asm/io.h>
+
+void putc(char c);
+
+void puts(char *s)
+{
+	char c;
+	while ((c = *s++)) putc(c);
+}
+
+#if defined(CONFIG_PLAT_M32700UT_Alpha) || defined(CONFIG_PLAT_M32700UT)
+#define USE_FPGA_MAP	0
+
+#if USE_FPGA_MAP
+/*
+ * fpga configuration program uses MMU, and define map as same as
+ * M32104 uT-Engine board.
+ */
+#define BOOT_SIO0STS	(volatile unsigned short *)(0x02c00000 + 0x20006)
+#define BOOT_SIO0TXB	(volatile unsigned short *)(0x02c00000 + 0x2000c)
+#else
+#define BOOT_SIO0STS	PLD_ESIO0STS
+#define BOOT_SIO0TXB	PLD_ESIO0TXB
+#endif
+
+void putc(char c)
+{
+
+	while ((*BOOT_SIO0STS & 0x3) != 0x3) ;
+	if (c == '\n') {
+		*BOOT_SIO0TXB = '\r';
+		while ((*BOOT_SIO0STS & 0x3) != 0x3) ;
+	}
+	*BOOT_SIO0TXB = c;
+}
+#else
+void putc(char c)
+{
+	/* do nothing */
+}
+#endif

arch/m32r/boot/compressed/misc.c

+/*
+ * arch/m32r/boot/compressed/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
+ *
+ * Adapted for SH by Stuart Menefy, Aug 1999
+ *
+ * Modified to use standard LinuxSH BIOS by Greg Banks 7Jul2000
+ *
+ * 2003-02-12:	Support M32R by Takeo Takahashi
+ * 		This is based on arch/sh/boot/compressed/misc.c.
+ */
+
+#include <linux/config.h>
+#include <asm/uaccess.h>
+#include "boot.h"
+
+/*
+ * gzip declarations
+ */
+
+#define OF(args)  args
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#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 */
+
+static unsigned insize;  /* valid bytes in inbuf */
+static unsigned inptr;   /* index of next byte to be processed in inbuf */
+static unsigned outcnt;  /* 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()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond,msg) {if(!(cond)) error(msg);}
+#  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 ;}
+#else
+#  define Assert(cond,msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c,x)
+#  define Tracecv(c,x)
+#endif
+
+static int  fill_inbuf(void);
+static void flush_window(void);
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+extern char input_data[];
+extern int input_len;
+
+static long bytes_out;
+static uch *output_data;
+static unsigned long output_ptr;
+
+
+static void *malloc(int size);
+static void free(void *where);
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+extern void puts(const char *);
+
+extern int _text;		/* Defined in vmlinux.lds.S */
+extern int _end;
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#define HEAP_SIZE             0x10000
+
+#include "../../../../lib/inflate.c"
+
+static void *malloc(int size)
+{
+	void *p;
+
+	if (size <0) error("Malloc error\n");
+	if (free_mem_ptr == 0) error("Memory error\n");
+
+	free_mem_ptr = (free_mem_ptr + 3) & ~3;	/* Align */
+
+	p = (void *)free_mem_ptr;
+	free_mem_ptr += size;
+
+	if (free_mem_ptr >= free_mem_end_ptr)
+		error("\nOut of memory\n");
+
+	return p;
+}
+
+static void free(void *where)
+{	/* Don't care */
+}
+
+static void gzip_mark(void **ptr)
+{
+	*ptr = (void *) free_mem_ptr;
+}
+
+static void gzip_release(void **ptr)
+{
+	free_mem_ptr = (long) *ptr;
+}
+
+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;
+}
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty
+ * and at least one byte is really needed.
+ */
+static int fill_inbuf(void)
+{
+	if (insize != 0) {
+		error("ran out of input data\n");
+	}
+
+	inbuf = input_data;
+	insize = input_len;
+	inptr = 1;
+	return inbuf[0];
+}
+
+/* ===========================================================================
+ * 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++;
+	    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");
+
+	while(1);	/* Halt */
+}
+
+#define STACK_SIZE (4096)
+long user_stack [STACK_SIZE];
+long* stack_start = &user_stack[STACK_SIZE];
+
+/* return decompressed size */
+long decompress_kernel(void)
+{
+	insize = 0;
+	inptr = 0;
+	bytes_out = 0;
+	outcnt = 0;
+	output_data = 0;
+	output_ptr = (unsigned long)KERNEL_DECOMPRESS_ADDR;
+	free_mem_ptr = (unsigned long)&_end;
+	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
+
+	makecrc();
+	puts("Uncompressing Linux... ");
+	gunzip();
+	puts("Ok, booting the kernel.\n");
+	return bytes_out;
+}

arch/m32r/boot/compressed/vmlinux.lds.S

+#include <linux/config.h>
+
+OUTPUT_ARCH(m32r)
+ENTRY(startup)
+SECTIONS
+{
+  . = CONFIG_MEMORY_START;
+  .fake_eit_vector : { *(.fake_eit_vector) }
+
+  . = ALIGN(4096);
+  _text = .;
+  .text : { *(.text) } = 0
+  .rodata : { *(.rodata) }
+  _etext = .;
+
+  . = ALIGN(32) + (. & (32 - 1));
+  .data : { *(.data) }
+  _edata  =  .;
+
+  . = ALIGN(32 / 8);
+  __bss_start = .;
+  .bss : { *(.bss) }
+  . = ALIGN(32 / 8);
+  _end = . ;
+}

arch/m32r/boot/compressed/vmlinux.scr

+SECTIONS
+{
+  .data : {
+	input_len = .;
+	LONG(input_data_end - input_data) input_data = .;
+	*(.data)
+	input_data_end = .;
+	}
+}

arch/m32r/boot/setup.S

+/*
+ *  linux/arch/m32r/boot/setup.S -- A setup code.
+ *
+ *  Copyright (C) 2001, 2002  Hiroyuki Kondo, Hirokazu Takata,
+ *  and Hitoshi Yamamoto
+ *
+ */
+/* $Id$ */
+
+#include <linux/linkage.h>
+#include <asm/segment.h>
+#include <asm/page.h>
+#include <asm/pgtable.h>
+
+#include <linux/config.h>
+#include <asm/assembler.h>
+#include <asm/mmu_context.h>
+#include <asm/m32r.h>
+
+/*
+ * References to members of the boot_cpu_data structure.
+ */
+
+#define CPU_PARAMS	boot_cpu_data
+#define M32R_MCICAR	 0xfffffff0
+#define M32R_MCDCAR	 0xfffffff4
+#define	M32R_MCCR 	 0xfffffffc
+#define M32R_BSCR0	 0xffffffd2
+
+;BSEL
+#define BSEL0CR0	 0x00ef5000
+#define	BSEL0CR1	 0x00ef5004
+#define BSEL1CR0	 0x00ef5100
+#define BSEL1CR1	 0x00ef5104
+#define BSEL0CR0_VAL	 0x00000000
+#define BSEL0CR1_VAL	 0x01200100
+#define BSEL1CR0_VAL	 0x01018000
+#define BSEL1CR1_VAL	 0x00200001
+
+;SDRAMC
+#define SDRAMC_SDRF0	 0x00ef6000
+#define SDRAMC_SDRF1	 0x00ef6004
+#define SDRAMC_SDIR0	 0x00ef6008
+#define SDRAMC_SDIR1	 0x00ef600c
+#define SDRAMC_SD0ADR	 0x00ef6020
+#define SDRAMC_SD0ER	 0x00ef6024
+#define SDRAMC_SD0TR	 0x00ef6028
+#define SDRAMC_SD0MOD	 0x00ef602c
+#define SDRAMC_SD1ADR	 0x00ef6040
+#define SDRAMC_SD1ER	 0x00ef6044
+#define SDRAMC_SD1TR	 0x00ef6048
+#define SDRAMC_SD1MOD	 0x00ef604c
+#define SDRAM0		 0x18000000
+#define SDRAM1		 0x1c000000
+
+/*------------------------------------------------------------------------
+ * start up
+ */
+
+/*------------------------------------------------------------------------
+ * Kernel entry
+ */
+	.section .boot,"ax"
+ENTRY(boot)
+
+/* Set cache mode */
+#if defined(CONFIG_CHIP_XNUX2)
+	ldi	r0, #-2              ;LDIMM	(r0, M32R_MCCR)
+	ldi	r1, #0x0101		; cache on (with invalidation)
+;	ldi	r1, #0x00		; cache off
+	sth	r1, @r0
+#elif defined(CONFIG_CHIP_VDEC2)
+	; cache condition is controlled by loader
+	; r13 = pointer to kernel parameter passed from loader
+	beqz	r13, param_skip
+	ldi	r2, #4096				; size
+	seth	r1, #high(empty_zero_page)
+	or3	r1, r1, #low(empty_zero_page)
+	seth	r3, #high(__PAGE_OFFSET)
+	or3	r3, r3, #low(__PAGE_OFFSET)
+	not	r3, r3
+	and	r1, r3
+	addi	r1, #-4
+param_loop:
+	ld	r3, @r13+
+	st	r3, @+r1
+	addi	r2, #-4
+	bnez	r2, param_loop
+	bra	param_end
+param_skip:
+	ldi	r0, #-1              ;LDIMM	(r0, M32R_MCCR)
+	ldi	r1, #0x63      		; cache on
+;	ldi	r1, #0x00		; cache off
+	stb	r1, @r0
+param_end:
+
+#elif defined(CONFIG_CHIP_M32700) && (defined(CONFIG_PLAT_M32700UT) \
+	|| defined(CONFIG_PLAT_USRV)) || \
+	defined(CONFIG_CHIP_OPSP) && defined(CONFIG_PLAT_OPSPUT)
+	; cache condition is controlled by loader
+	; r13 = pointer to kernel parameter passed from loader
+	ldi     r0, #-4
+	ldi     r1, #0x63		;  cache Ion/Don
+	st      r1, @r0
+#if defined(CONFIG_SMP) && !defined(CONFIG_PLAT_USRV)
+	seth    r5, #high(M32R_CPUID_PORTL)
+	or3     r5, r5, #low(M32R_CPUID_PORTL)
+	ld      r5, @r5
+	bnez    r5, param_end
+		;;  boot AP
+	ld24    r5, #0xeff2f8		;  IPICR7
+	ldi     r6, #0x2		;  IPI to CPU1
+	st      r6, @r5
+#endif
+	beqz	r13, param_end
+	ldi	r2, #4096				; size
+	seth	r1, #high(empty_zero_page)
+	or3	r1, r1, #low(empty_zero_page)
+	seth	r3, #high(__PAGE_OFFSET)
+	or3	r3, r3, #low(__PAGE_OFFSET)
+	not	r3, r3
+	and	r1, r3
+	addi	r1, #-4
+param_loop:
+	ld	r3, @r13+
+	st	r3, @+r1
+	addi	r2, #-4
+	bnez	r2, param_loop
+param_end:
+#elif defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP)
+	ldi	r0, #-4			;LDIMM	(r0, M32R_MCCR)
+	ldi	r1, #0x63		; cache Ion/Don (with invalidation)
+;	ldi	r1, #0x00		; cache off
+	st	r1, @r0
+#elif defined(CONFIG_CHIP_M32102)
+        ldi     r0, #-4                 ;LDIMM  (r0, M32R_MCCR)
+        ldi     r1, #0x101              ; cache Ion (with invalidation)
+;       ldi     r1, #0x00               ; cache off
+        st      r1, @r0
+#else
+#error unknown chip configuration
+#endif
+
+#ifdef CONFIG_SMP
+	;; if not BSP (CPU#0) goto AP_loop
+	seth	r5, #shigh(M32R_CPUID_PORTL)
+	ld      r5, @(low(M32R_CPUID_PORTL), r5)
+	bnez	r5, AP_loop
+#endif
+
+/*
+ *  Now, Jump to stext
+ *        if with MMU,    TLB on.
+ *        if with no MMU, only jump.
+ */
+mmu_on:
+	LDIMM	(r13, stext)
+#ifdef CONFIG_MMU
+	bl	init_tlb
+	LDIMM	(r2, _RE)			; set EVB(cr5)
+	mvtc    r2, cr5
+	seth	r0, #high(MMU_REG_BASE)		; Set MMU_REG_BASE higher
+	or3     r0, r0, #low(MMU_REG_BASE)	; Set MMU_REG_BASE lower
+	ldi     r1, #0x01
+	st      r1, @(MATM_offset,r0)		; Set MATM (T bit ON)
+	ld      r0, @(MATM_offset,r0)		; Check
+#else
+	seth	r0,#high(M32R_MCDCAR)
+	or3	r0,r0,#low(M32R_MCDCAR)
+	ld24	r1,#0x8080
+	st	r1,@r0
+#endif	/* CONFIG_MMU */
+	jmp	r13
+	nop
+	nop
+
+#ifdef CONFIG_SMP
+/*
+ * AP wait loop
+ */
+ENTRY(AP_loop)
+	;; disable interrupt
+	clrpsw	#0x40
+	;; reset EVB
+	LDIMM	(r4, _AP_RE)
+	seth	r5, #high(__PAGE_OFFSET)
+	or3	r5, r5, #low(__PAGE_OFFSET)
+	not	r5, r5
+	and	r4, r5
+	mvtc	r4, cr5
+	;; disable maskable interrupt
+	seth	r4, #high(M32R_ICU_IMASK_PORTL)
+	or3	r4, r4, #low(M32R_ICU_IMASK_PORTL)
+	ldi	r5, #0
+	st	r5, @r4
+	ld	r5, @r4
+	;; enable only IPI
+	setpsw	#0x40
+    	;; LOOOOOOOOOOOOOOP!!!
+	.fillinsn
+2:
+	nop
+	nop
+	bra	2b
+	nop
+	nop
+
+#ifdef CONFIG_CHIP_M32700_TS1
+	.global	dcache_dummy
+	.balign	16, 0
+dcache_dummy:
+	.byte	16
+#endif	/* CONFIG_CHIP_M32700_TS1 */
+#endif	/* CONFIG_SMP */
+
+	.end
+

arch/m32r/drivers/8390.c

+#include "../../../drivers/net/8390.c"

arch/m32r/drivers/8390.h

+#include "../../../drivers/net/8390.h"

arch/m32r/drivers/Kconfig

+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+
+menu "M32R drivers"
+
+config M32RPCC
+	bool "M32R PCMCIA I/F"
+	depends on CHIP_M32700
+
+config M32R_NE2000
+	bool "On board NE2000 Network Interface Chip"
+	depends on PLAT_MAPPI || PLAT_OAKS32R
+
+config M32R_CFC
+	bool "CF I/F Controller"
+	depends on PLAT_USRV || PLAT_M32700UT || PLAT_MAPPI2 || PLAT_OPSPUT
+
+config M32700UT_CFC
+	bool
+	depends on M32R_CFC
+	default y
+
+config CFC_NUM
+	int "CF I/F number"
+	depends on PLAT_USRV || PLAT_M32700UT
+	default "1" if PLAT_USRV || PLAT_M32700UT || PLAT_MAPPI2 || PLAT_OPSPUT
+
+config MTD_M32R
+	bool "Flash device mapped on M32R"
+	depends on PLAT_USRV || PLAT_M32700UT || PLAT_MAPPI2
+
+config M32R_SMC91111
+	bool "On board SMC91111 Network Interface Chip"
+	depends on PLAT_M32700UT || PLAT_MAPPI2 || PLAT_OPSPUT
+
+config M32700UT_DS1302
+	bool "DS1302 Real Time Clock support"
+	depends on PLAT_M32700UT || PLAT_OPSPUT
+
+endmenu

arch/m32r/drivers/Makefile

+#
+# Makefile for the Linux/M32R driver
+#
+
+obj-$(CONFIG_M32R_SMC91111)	+= smc91111.o
+obj-$(CONFIG_M32R_NE2000)	+= mappi_ne.o 8390.o
+obj-$(CONFIG_M32RPCC)		+= m32r_pcc.o
+obj-$(CONFIG_M32R_CFC)		+= m32r_cfc.o
+obj-$(CONFIG_M32700UT_DS1302)	+= ds1302.o

arch/m32r/drivers/cs_internal.h

+#include "../../../drivers/pcmcia/cs_internal.h"
+

arch/m32r/drivers/m32r_cfc.h

+/*
+ *  $Id$
+ *
+ * Copyright (C) 2001 by Hiroyuki Kondo
+ */
+
+#if !defined(CONFIG_PLAT_USRV)
+#define M32R_MAX_PCC	2
+#else	/* CONFIG_PLAT_USRV */
+#define M32R_MAX_PCC	CONFIG_CFC_NUM
+#endif	/* CONFIG_PLAT_USRV */
+
+/*
+ * M32R PC Card Controler
+ */
+#define M32R_PCC0_BASE        0x00ef7000
+#define M32R_PCC1_BASE        0x00ef7020
+
+/*
+ * Register offsets
+ */
+#define PCCR            0x00
+#define PCADR           0x04
+#define PCMOD           0x08
+#define PCIRC           0x0c
+#define PCCSIGCR        0x10
+#define PCATCR          0x14
+
+/*
+ * PCCR
+ */
+#define PCCR_PCEN       (1UL<<(31-31))
+
+/*
+ * PCIRC
+ */
+#define PCIRC_BWERR     (1UL<<(31-7))
+#define PCIRC_CDIN1     (1UL<<(31-14))
+#define PCIRC_CDIN2     (1UL<<(31-15))
+#define PCIRC_BEIEN     (1UL<<(31-23))
+#define PCIRC_CIIEN     (1UL<<(31-30))
+#define PCIRC_COIEN     (1UL<<(31-31))
+
+/*
+ * PCCSIGCR
+ */
+#define PCCSIGCR_SEN    (1UL<<(31-3))
+#define PCCSIGCR_VEN    (1UL<<(31-7))
+#define PCCSIGCR_CRST   (1UL<<(31-15))
+#define PCCSIGCR_COCR   (1UL<<(31-31))
+
+/*
+ *
+ */
+#define PCMOD_AS_ATTRIB	(1UL<<(31-19))
+#define PCMOD_AS_IO	(1UL<<(31-18))
+
+#define PCMOD_CBSZ	(1UL<<(31-23)) /* set for 8bit */
+
+#define PCMOD_DBEX	(1UL<<(31-31)) /* set for excahnge */
+
+/*
+ * M32R PCC Map addr
+ */
+
+#define M32R_PCC0_MAPBASE        0x14000000
+#define M32R_PCC1_MAPBASE        0x16000000
+
+#define M32R_PCC_MAPMAX		 0x02000000
+
+#define M32R_PCC_MAPSIZE	 0x00001000 /* XXX */
+#define M32R_PCC_MAPMASK     	(~(M32R_PCC_MAPMAX-1))
+
+#define CFC_IOPORT_BASE		0x1000
+
+#if !defined(CONFIG_PLAT_USRV)
+#define CFC_ATTR_MAPBASE        0x0c014000
+#define CFC_IO_MAPBASE_BYTE     0xac012000
+#define CFC_IO_MAPBASE_WORD     0xac002000
+#else	/* CONFIG_PLAT_USRV */
+#define CFC_ATTR_MAPBASE	0x04014000
+#define CFC_IO_MAPBASE_BYTE	0xa4012000
+#define CFC_IO_MAPBASE_WORD	0xa4002000
+#endif	/* CONFIG_PLAT_USRV */
+

arch/m32r/drivers/m32r_pcc.h

+/*
+ *  $Id$
+ *
+ * Copyright (C) 2001 by Hiroyuki Kondo
+ */
+
+
+
+#define M32R_MAX_PCC	2
+
+/*
+ * M32R PC Card Controler
+ */
+#define M32R_PCC0_BASE        0x00ef7000
+#define M32R_PCC1_BASE        0x00ef7020
+
+/*
+ * Register offsets
+ */
+#define PCCR            0x00
+#define PCADR           0x04
+#define PCMOD           0x08
+#define PCIRC           0x0c
+#define PCCSIGCR        0x10
+#define PCATCR          0x14
+
+/*
+ * PCCR
+ */
+#define PCCR_PCEN       (1UL<<(31-31))
+
+/*
+ * PCIRC
+ */
+#define PCIRC_BWERR     (1UL<<(31-7))
+#define PCIRC_CDIN1     (1UL<<(31-14))
+#define PCIRC_CDIN2     (1UL<<(31-15))
+#define PCIRC_BEIEN     (1UL<<(31-23))
+#define PCIRC_CIIEN     (1UL<<(31-30))
+#define PCIRC_COIEN     (1UL<<(31-31))
+
+/*
+ * PCCSIGCR
+ */
+#define PCCSIGCR_SEN    (1UL<<(31-3))
+#define PCCSIGCR_VEN    (1UL<<(31-7))
+#define PCCSIGCR_CRST   (1UL<<(31-15))
+#define PCCSIGCR_COCR   (1UL<<(31-31))
+
+/*
+ *
+ */
+#define PCMOD_AS_ATTRIB	(1UL<<(31-19))
+#define PCMOD_AS_IO	(1UL<<(31-18))
+
+#define PCMOD_CBSZ	(1UL<<(31-23)) /* set for 8bit */
+
+#define PCMOD_DBEX	(1UL<<(31-31)) /* set for excahnge */
+
+/*
+ * M32R PCC Map addr
+ */
+#define M32R_PCC0_MAPBASE        0x14000000
+#define M32R_PCC1_MAPBASE        0x16000000
+
+#define M32R_PCC_MAPMAX		 0x02000000
+
+#define M32R_PCC_MAPSIZE	 0x00001000 /* XXX */
+#define M32R_PCC_MAPMASK     	(~(M32R_PCC_MAPMAX-1))
+

arch/m32r/drivers/m5.h

+/*
+ * Flash Memory Driver for M32700UT-CPU
+ *
+ * Copyright 2003 (C)   Takeo Takahashi
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * 2003-02-01: 	Takeo Takahashi, support M5M29GT320VP.
+ */
+
+#include <asm/m32r.h>
+
+#ifdef __KERNEL__
+#undef DEBUG
+/* debug routine:
+ *   0x00000001: print debug information
+ */
+#  define DEBUG(n, args...) if ((n) & debug) \
+	printk(KERN_DEBUG args)
+#endif	/* __KERNEL__ */
+
+/*
+ * data type to access flash memory
+ */
+typedef volatile unsigned short m5_t;
+
+/*
+ * - Page program buffer size in byte
+ * - block size in byte
+ * - number of block
+ */
+#define M5_PAGE_SIZE		(256)
+#define M5_BLOCK_SIZE8		(8*1024)
+#define M5_BLOCK_SIZE64		(64*1024)
+#define MAX_BLOCK_NUM		70
+
+/*
+ * Software commands
+ */
+#define M5_CMD_READ_ARRAY            0xff
+#define M5_CMD_DEVICE_IDENT          0x90
+#define M5_CMD_READ_STATUS           0x70
+#define M5_CMD_CLEAR_STATUS          0x50
+#define M5_CMD_BLOCK_ERASE           0x20
+#define M5_CMD_CONFIRM               0xd0
+#define M5_CMD_PROGRAM_BYTE          0x40
+#define M5_CMD_PROGRAM_WORD          M5_CMD_PROGRAM_BYTE
+#define M5_CMD_PROGRAM_PAGE          0x41
+#define M5_CMD_SINGLE_LOAD_DATA      0x74
+#define M5_CMD_BUFF2FLASH            0x0e
+#define M5_CMD_FLASH2BUFF            0xf1
+#define M5_CMD_CLEAR_BUFF            0x55
+#define M5_CMD_SUSPEND               0xb0
+#define M5_CMD_RESUME                0xd0
+
+/*
+ * Status
+ */
+#define M5_STATUS_READY              0x80 /* 0:busy 1:ready */
+#define M5_STATUS_SUSPEND            0x40 /* 0:progress/complete 1:suspend */
+#define M5_STATUS_ERASE              0x20 /* 0:pass 1:error */
+#define M5_STATUS_PROGRAM            0x10 /* 0:pass 1:error */
+#define M5_STATUS_BLOCK              0x08 /* 0:pass 1:error */
+
+/*
+ * Device Code
+ */
+#define M5_MAKER		(0x1c)
+#define M5_M5M29GT320VP		(0x20)
+#define M5_M5M29GB320VP		(0x21)

arch/m32r/kernel/Makefile

+#
+# Makefile for the Linux/M32R kernel.
+#
+
+extra-y	:= head.o init_task.o vmlinux.lds.s
+
+obj-y	:= process.o entry.o traps.o align.o irq.o setup.o time.o \
+	m32r_ksyms.o sys_m32r.o semaphore.o signal.o ptrace.o
+
+obj-$(CONFIG_SMP)		+= smp.o smpboot.o
+obj-$(CONFIG_PLAT_MAPPI)	+= setup_mappi.o io_mappi.o
+obj-$(CONFIG_PLAT_MAPPI2)	+= setup_mappi2.o io_mappi2.o
+obj-$(CONFIG_PLAT_USRV)		+= setup_usrv.o io_usrv.o
+obj-$(CONFIG_PLAT_M32700UT)	+= setup_m32700ut.o io_m32700ut.o
+obj-$(CONFIG_PLAT_OPSPUT)	+= setup_opsput.o io_opsput.o
+obj-$(CONFIG_MODULES)		+= module.o
+obj-$(CONFIG_PLAT_OAKS32R)	+= setup_oaks32r.o io_oaks32r.o
+
+EXTRA_AFLAGS	:= -traditional
+