* [PATCH] building compressed kernel (au1000)
@ 2007-04-16 9:01 Aeschbacher, Fabrice
2007-04-16 9:01 ` Aeschbacher, Fabrice
2007-04-16 13:47 ` Ralf Baechle
0 siblings, 2 replies; 3+ messages in thread
From: Aeschbacher, Fabrice @ 2007-04-16 9:01 UTC (permalink / raw)
To: linux-mips
[-- Attachment #1: Type: text/plain, Size: 306 bytes --]
Hi,
Please find enclosed a patch (against 2.6.20.4) for building a
compressed kernel image (zImage) for mips / au1000.
This patch was only adapted from
http://www.freewrt.org/trac/browser/trunk/freewrt/target/linux/au1000-2.
6/patches/003-zImage.patch?rev=1
Best regards,
Fabrice Aeschbacher
[-- Attachment #2: patch-2.6.20.4-compressed --]
[-- Type: application/octet-stream, Size: 46715 bytes --]
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/au1xxx/head.S linux-2.6.20.4/arch/mips/boot/compressed/au1xxx/head.S
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/au1xxx/head.S 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/au1xxx/head.S 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,119 @@
+/*
+ * arch/mips/kernel/head.S
+ *
+ * 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) 1994, 1995 Waldorf Electronics
+ * Written by Ralf Baechle and Andreas Busse
+ * Copyright (C) 1995 - 1999 Ralf Baechle
+ * Copyright (C) 1996 Paul M. Antoine
+ * Modified for DECStation and hence R3000 support by Paul M. Antoine
+ * Further modifications by David S. Miller and Harald Koerfgen
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ *
+ * Head.S contains the MIPS exception handler and startup code.
+ *
+ **************************************************************************
+ * 9 Nov, 2000.
+ * Added Cache Error exception handler and SBDDP EJTAG debug exception.
+ *
+ * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
+ **************************************************************************
+ */
+#include <linux/config.h>
+#include <linux/threads.h>
+
+#include <asm/asm.h>
+#include <asm/cacheops.h>
+#include <asm/mipsregs.h>
+#include <asm/cachectl.h>
+#include <asm/regdef.h>
+
+#define IndexInvalidate_I 0x00
+#define IndexWriteBack_D 0x01
+
+ .set noreorder
+ .cprestore
+ LEAF(start)
+start:
+ bal locate
+ nop
+locate:
+ subu s8, ra, 8 /* Where we were loaded */
+ la sp, (.stack + 8192)
+
+ move s0, a0 /* Save boot rom start args */
+ move s1, a1
+ move s2, a2
+ move s3, a3
+
+ la a0, start /* Where we were linked to run */
+
+ move a1, s8
+ la a2, _edata
+ subu t1, a2, a0
+ srl t1, t1, 2
+
+ /* copy text section */
+ li t0, 0
+1: lw v0, 0(a1)
+ nop
+ sw v0, 0(a0)
+ xor t0, t0, v0
+ addu a0, 4
+ bne a2, a0, 1b
+ addu a1, 4
+
+ /* Clear BSS */
+ la a0, _edata
+ la a2, _end
+2: sw zero, 0(a0)
+ bne a2, a0, 2b
+ addu a0, 4
+
+ /* push the D-Cache and invalidate I-Cache */
+ li k0, 0x80000000 # start address
+ li k1, 0x80004000 # end address (16KB I-Cache)
+ subu k1, 128
+
+1:
+ .set mips3
+ cache IndexWriteBack_D, 0(k0)
+ cache IndexWriteBack_D, 32(k0)
+ cache IndexWriteBack_D, 64(k0)
+ cache IndexWriteBack_D, 96(k0)
+ cache IndexInvalidate_I, 0(k0)
+ cache IndexInvalidate_I, 32(k0)
+ cache IndexInvalidate_I, 64(k0)
+ cache IndexInvalidate_I, 96(k0)
+ .set mips0
+
+ bne k0, k1, 1b
+ addu k0, k0, 128
+ /* done */
+
+ move a0, s8 /* load address */
+ move a1, t1 /* length in words */
+ move a2, t0 /* checksum */
+ move a3, sp
+
+ la ra, 1f
+ la k0, decompress_kernel
+ jr k0
+ nop
+1:
+
+ move a0, s0
+ move a1, s1
+ move a2, s2
+ move a3, s3
+ li k0, KERNEL_ENTRY
+ jr k0
+ nop
+3:
+ b 3b
+ END(start)
+ .comm .stack,4096*2,4
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/au1xxx/Makefile linux-2.6.20.4/arch/mips/boot/compressed/au1xxx/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/au1xxx/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/au1xxx/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,112 @@
+# arch/mips/boot/compressed/au1xxx/Makefile
+#
+# Makefile for AMD Alchemy Semiconductor Au1x based boards.
+# All of the boot loader code was derived from the ppc
+# boot code.
+#
+# Copyright 2001,2002 MontaVista Software Inc.
+#
+# Author: Mark A. Greer
+# mgreer@mvista.com
+#
+# Copyright 2004 Embedded Alley Solutions, Inc
+# Ported and modified for mips 2.6 support by
+# Pete Popov <ppopov@embeddedalley.com>
+#
+# 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.
+
+boot := arch/mips/boot
+compressed := $(boot)/compressed
+utils := $(compressed)/utils
+lib := $(compressed)/lib
+images := $(compressed)/images
+common := $(compressed)/common
+
+#########################################################################
+# START BOARD SPECIFIC VARIABLES
+
+# These two variables control where the zImage is stored
+# in flash and loaded in memory. It only controls how the srec
+# file is generated, the code is the same.
+RAM_RUN_ADDR = 0x81000000
+
+ifdef CONFIG_MIPS_XXS1500
+FLASH_LOAD_ADDR = 0xBF000000
+else
+FLASH_LOAD_ADDR = 0xBFD00000
+endif
+
+# These two variables specify the free ram region
+# that can be used for temporary malloc area
+#AVAIL_RAM_START=0x80500000
+#AVAIL_RAM_END=0x80900000
+AVAIL_RAM_START=0x81400000
+AVAIL_RAM_END=0x81800000
+
+# This one must match the LOADADDR in arch/mips/Makefile!
+LOADADDR=0x80100000
+
+# WARNING WARNING WARNING
+# Note that with a LOADADDR of 0x80100000 and AVAIL_RAM_START of
+# 0x80500000, the max decompressed kernel size can be 4MB. Else we
+# start overwriting ourselve. You can change these vars as needed;
+# it would be much better if we just figured everything out on the fly.
+
+# END BOARD SPECIFIC VARIABLES
+#########################################################################
+
+OBJECTS := $(obj)/head.o $(common)/misc-common.o $(common)/misc-simple.o \
+ $(common)/au1k_uart.o
+LIBS := $(lib)/lib.a
+
+ENTRY := $(utils)/entry
+OFFSET := $(utils)/offset
+SIZE := $(utils)/size
+
+LD_ARGS := -T $(compressed)/ld.script -Ttext $(RAM_RUN_ADDR) -Bstatic
+
+ifdef CONFIG_CPU_LITTLE_ENDIAN
+OBJCOPY_ARGS = -O elf32-tradlittlemips
+else
+OBJCOPY_ARGS = -O elf32-tradbigmips
+endif
+
+$(obj)/head.o: $(obj)/head.S $(TOPDIR)/vmlinux
+ $(CC) -I $(TOPDIR)/include $(AFLAGS) \
+ -DKERNEL_ENTRY=$(shell sh $(ENTRY) $(NM) $(TOPDIR)/vmlinux ) \
+ -c -o $@ $<
+
+$(common)/misc-simple.o:
+ $(CC) -I $(TOPDIR)/include $(CFLAGS) -DINITRD_OFFSET=0 -DINITRD_SIZE=0 -DZIMAGE_OFFSET=0 \
+ -DAVAIL_RAM_START=$(AVAIL_RAM_START) \
+ -DAVAIL_RAM_END=$(AVAIL_RAM_END) \
+ -DLOADADDR=$(LOADADDR) \
+ -DZIMAGE_SIZE=0 -c -o $@ $(common)/misc-simple.c
+
+$(obj)/zvmlinux: $(OBJECTS) $(LIBS) $(srctree)/$(compressed)/ld.script $(images)/vmlinux.gz $(common)/dummy.o
+ $(OBJCOPY) \
+ --add-section=.image=$(images)/vmlinux.gz \
+ --set-section-flags=.image=contents,alloc,load,readonly,data \
+ $(common)/dummy.o $(common)/image.o
+ $(LD) $(LD_ARGS) -o $@ $(OBJECTS) $(common)/image.o $(LIBS)
+ $(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R __kcrctab -R __ksymtab_strings \
+ -R .comment -R .stab -R .stabstr -R .initrd -R .sysmap
+
+# Here we manipulate the image in order to get it the necessary
+# srecord file we need.
+zImage: $(obj)/zvmlinux
+ mv $(obj)/zvmlinux $(images)/zImage
+ $(OBJCOPY) -O srec $(images)/zImage $(images)/zImage.srec
+ $(OBJCOPY) -O binary $(images)/zImage $(images)/zImage.bin
+
+zImage.flash: zImage
+ ( \
+ flash=${FLASH_LOAD_ADDR} ; \
+ ram=${RAM_RUN_ADDR} ; \
+ adjust=$$[ $$flash - $$ram ] ; \
+ $(OBJCOPY) -O srec --adjust-vma `printf '0x%08x' $$adjust` \
+ $(images)/zImage $(images)/zImage.flash.srec ; \
+ )
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/au1k_uart.c linux-2.6.20.4/arch/mips/boot/compressed/common/au1k_uart.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/au1k_uart.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/au1k_uart.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,103 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * Simple Au1000 uart routines.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ppopov@mvista.com or source@mvista.com
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+//#include <linux/config.h>
+#include <asm/io.h>
+#include <asm/mach-au1x00/au1000.h>
+#include "ns16550.h"
+
+typedef unsigned char uint8;
+typedef unsigned int uint32;
+
+#define UART16550_BAUD_2400 2400
+#define UART16550_BAUD_4800 4800
+#define UART16550_BAUD_9600 9600
+#define UART16550_BAUD_19200 19200
+#define UART16550_BAUD_38400 38400
+#define UART16550_BAUD_57600 57600
+#define UART16550_BAUD_115200 115200
+
+#define UART16550_PARITY_NONE 0
+#define UART16550_PARITY_ODD 0x08
+#define UART16550_PARITY_EVEN 0x18
+#define UART16550_PARITY_MARK 0x28
+#define UART16550_PARITY_SPACE 0x38
+
+#define UART16550_DATA_5BIT 0x0
+#define UART16550_DATA_6BIT 0x1
+#define UART16550_DATA_7BIT 0x2
+#define UART16550_DATA_8BIT 0x3
+
+#define UART16550_STOP_1BIT 0x0
+#define UART16550_STOP_2BIT 0x4
+
+/* It would be nice if we had a better way to do this.
+ * It could be a variable defined in one of the board specific files.
+ */
+#undef UART_BASE
+#ifdef CONFIG_COGENT_CSB250
+#define UART_BASE UART3_ADDR
+#else
+#define UART_BASE UART0_ADDR
+#endif
+
+/* memory-mapped read/write of the port */
+#define UART16550_READ(y) (au_readl(UART_BASE + y) & 0xff)
+#define UART16550_WRITE(y,z) (au_writel(z&0xff, UART_BASE + y))
+
+/*
+ * We use uart 0, which is already initialized by
+ * yamon.
+ */
+volatile struct NS16550 *
+serial_init(int chan)
+{
+ volatile struct NS16550 *com_port;
+ com_port = (struct NS16550 *) UART_BASE;
+ return (com_port);
+}
+
+void
+serial_putc(volatile struct NS16550 *com_port, unsigned char c)
+{
+ while ((UART16550_READ(UART_LSR)&0x40) == 0);
+ UART16550_WRITE(UART_TX, c);
+}
+
+unsigned char
+serial_getc(volatile struct NS16550 *com_port)
+{
+ while((UART16550_READ(UART_LSR) & 0x1) == 0);
+ return UART16550_READ(UART_RX);
+}
+
+int
+serial_tstc(volatile struct NS16550 *com_port)
+{
+ return((UART16550_READ(UART_LSR) & LSR_DR) != 0);
+}
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/dummy.c linux-2.6.20.4/arch/mips/boot/compressed/common/dummy.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/dummy.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/dummy.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,4 @@
+int main(void)
+{
+ return 0;
+}
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/Makefile linux-2.6.20.4/arch/mips/boot/compressed/common/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,15 @@
+#
+# arch/mips/boot/compressed/common/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.
+#
+# Tom Rini January 2001
+#
+# Pete Popov, 2004
+#
+
+lib-y := misc-common.o no_initrd.o dummy.o
+lib-$(CONFIG_SOC_AU1X00) += au1k_uart.o
+
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/misc-common.c linux-2.6.20.4/arch/mips/boot/compressed/common/misc-common.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/misc-common.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/misc-common.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,434 @@
+/*
+ * arch/mips/boot/compressed/common/misc-common.c
+ *
+ * Misc. bootloader code (almost) all platforms can use
+ *
+ * Author: Johnnie Peters <jpeters@mvista.com>
+ * Editor: Tom Rini <trini@mvista.com>
+ *
+ * Derived from arch/ppc/boot/prep/misc.c
+ *
+ * Ported by Pete Popov <ppopov@mvista.com> to
+ * support mips board(s). I also got rid of the vga console
+ * code.
+ *
+ * Copyright 2000-2001 MontaVista Software Inc.
+ *
+ * Ported to MIPS 2.6 by Pete Popov, <ppopov@embeddedalley.com>
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdarg.h> /* for va_ bits */
+//#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/zlib.h>
+
+extern char *avail_ram;
+extern char *end_avail;
+extern char _end[];
+
+void puts(const char *);
+void putc(const char c);
+void puthex(unsigned long val);
+void _bcopy(char *src, char *dst, int len);
+void gunzip(void *, int, unsigned char *, int *);
+static int _cvt(unsigned long val, char *buf, long radix, char *digits);
+
+void _vprintk(void(*)(const char), const char *, va_list ap);
+
+struct NS16550 *com_port;
+
+int serial_tstc(volatile struct NS16550 *);
+unsigned char serial_getc(volatile struct NS16550 *);
+void serial_putc(volatile struct NS16550 *, unsigned char);
+
+void pause(void)
+{
+ puts("pause\n");
+}
+
+void exit(void)
+{
+ puts("exit\n");
+ while(1);
+}
+
+int tstc(void)
+{
+ return (serial_tstc(com_port));
+}
+
+int getc(void)
+{
+ while (1) {
+ if (serial_tstc(com_port))
+ return (serial_getc(com_port));
+ }
+}
+
+void
+putc(const char c)
+{
+ serial_putc(com_port, c);
+ if ( c == '\n' )
+ serial_putc(com_port, '\r');
+}
+
+void puts(const char *s)
+{
+ char c;
+ while ( ( c = *s++ ) != '\0' ) {
+ serial_putc(com_port, c);
+ if ( c == '\n' ) serial_putc(com_port, '\r');
+ }
+}
+
+void error(char *x)
+{
+ puts("\n\n");
+ puts(x);
+ puts("\n\n -- System halted");
+
+ while(1); /* Halt */
+}
+
+static void *zalloc(unsigned size)
+{
+ void *p = avail_ram;
+
+ size = (size + 7) & -8;
+ avail_ram += size;
+ if (avail_ram > end_avail) {
+ puts("oops... out of memory\n");
+ pause();
+ }
+ return p;
+}
+
+
+#define HEAD_CRC 2
+#define EXTRA_FIELD 4
+#define ORIG_NAME 8
+#define COMMENT 0x10
+#define RESERVED 0xe0
+
+#define DEFLATED 8
+
+void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
+{
+ z_stream s;
+ int r, i, flags;
+
+ /* skip header */
+ i = 10;
+ flags = src[3];
+ if (src[2] != Z_DEFLATED || (flags & RESERVED) != 0) {
+ puts("bad gzipped data\n");
+ exit();
+ }
+ if ((flags & EXTRA_FIELD) != 0)
+ i = 12 + src[10] + (src[11] << 8);
+ if ((flags & ORIG_NAME) != 0)
+ while (src[i++] != 0)
+ ;
+ if ((flags & COMMENT) != 0)
+ while (src[i++] != 0)
+ ;
+ if ((flags & HEAD_CRC) != 0)
+ i += 2;
+ if (i >= *lenp) {
+ puts("gunzip: ran out of data in header\n");
+ exit();
+ }
+
+ /* Initialize ourself. */
+ s.workspace = zalloc(zlib_inflate_workspacesize());
+ r = zlib_inflateInit2(&s, -MAX_WBITS);
+ if (r != Z_OK) {
+ puts("zlib_inflateInit2 returned "); puthex(r); puts("\n");
+ exit();
+ }
+ s.next_in = src + i;
+ s.avail_in = *lenp - i;
+ s.next_out = dst;
+ s.avail_out = dstlen;
+ r = zlib_inflate(&s, Z_FINISH);
+ if (r != Z_OK && r != Z_STREAM_END) {
+ puts("inflate returned "); puthex(r); puts("\n");
+ exit();
+ }
+ *lenp = s.next_out - (unsigned char *) dst;
+ zlib_inflateEnd(&s);
+}
+
+void
+puthex(unsigned long val)
+{
+
+ unsigned char buf[10];
+ int i;
+ for (i = 7; i >= 0; i--)
+ {
+ buf[i] = "0123456789ABCDEF"[val & 0x0F];
+ val >>= 4;
+ }
+ buf[8] = '\0';
+ puts(buf);
+}
+
+#define FALSE 0
+#define TRUE 1
+
+void
+_printk(char const *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _vprintk(putc, fmt, ap);
+ va_end(ap);
+ return;
+}
+
+#define is_digit(c) ((c >= '0') && (c <= '9'))
+
+void
+_vprintk(void(*putc)(const char), const char *fmt0, va_list ap)
+{
+ char c, sign, *cp = 0;
+ int left_prec, right_prec, zero_fill, length = 0, pad, pad_on_right;
+ char buf[32];
+ long val;
+ while ((c = *fmt0++))
+ {
+ if (c == '%')
+ {
+ c = *fmt0++;
+ left_prec = right_prec = pad_on_right = 0;
+ if (c == '-')
+ {
+ c = *fmt0++;
+ pad_on_right++;
+ }
+ if (c == '0')
+ {
+ zero_fill = TRUE;
+ c = *fmt0++;
+ } else
+ {
+ zero_fill = FALSE;
+ }
+ while (is_digit(c))
+ {
+ left_prec = (left_prec * 10) + (c - '0');
+ c = *fmt0++;
+ }
+ if (c == '.')
+ {
+ c = *fmt0++;
+ zero_fill++;
+ while (is_digit(c))
+ {
+ right_prec = (right_prec * 10) + (c - '0');
+ c = *fmt0++;
+ }
+ } else
+ {
+ right_prec = left_prec;
+ }
+ sign = '\0';
+ switch (c)
+ {
+ case 'd':
+ case 'x':
+ case 'X':
+ val = va_arg(ap, long);
+ switch (c)
+ {
+ case 'd':
+ if (val < 0)
+ {
+ sign = '-';
+ val = -val;
+ }
+ length = _cvt(val, buf, 10, "0123456789");
+ break;
+ case 'x':
+ length = _cvt(val, buf, 16, "0123456789abcdef");
+ break;
+ case 'X':
+ length = _cvt(val, buf, 16, "0123456789ABCDEF");
+ break;
+ }
+ cp = buf;
+ break;
+ case 's':
+ cp = va_arg(ap, char *);
+ length = strlen(cp);
+ break;
+ case 'c':
+ c = va_arg(ap, long /*char*/);
+ (*putc)(c);
+ continue;
+ default:
+ (*putc)('?');
+ }
+ pad = left_prec - length;
+ if (sign != '\0')
+ {
+ pad--;
+ }
+ if (zero_fill)
+ {
+ c = '0';
+ if (sign != '\0')
+ {
+ (*putc)(sign);
+ sign = '\0';
+ }
+ } else
+ {
+ c = ' ';
+ }
+ if (!pad_on_right)
+ {
+ while (pad-- > 0)
+ {
+ (*putc)(c);
+ }
+ }
+ if (sign != '\0')
+ {
+ (*putc)(sign);
+ }
+ while (length-- > 0)
+ {
+ (*putc)(c = *cp++);
+ if (c == '\n')
+ {
+ (*putc)('\r');
+ }
+ }
+ if (pad_on_right)
+ {
+ while (pad-- > 0)
+ {
+ (*putc)(c);
+ }
+ }
+ } else
+ {
+ (*putc)(c);
+ if (c == '\n')
+ {
+ (*putc)('\r');
+ }
+ }
+ }
+}
+
+int
+_cvt(unsigned long val, char *buf, long radix, char *digits)
+{
+ char temp[80];
+ char *cp = temp;
+ int length = 0;
+ if (val == 0)
+ { /* Special case */
+ *cp++ = '0';
+ } else
+ while (val)
+ {
+ *cp++ = digits[val % radix];
+ val /= radix;
+ }
+ while (cp != temp)
+ {
+ *buf++ = *--cp;
+ length++;
+ }
+ *buf = '\0';
+ return (length);
+}
+
+void
+_dump_buf_with_offset(unsigned char *p, int s, unsigned char *base)
+{
+ int i, c;
+ if ((unsigned int)s > (unsigned int)p)
+ {
+ s = (unsigned int)s - (unsigned int)p;
+ }
+ while (s > 0)
+ {
+ if (base)
+ {
+ _printk("%06X: ", (int)p - (int)base);
+ } else
+ {
+ _printk("%06X: ", p);
+ }
+ for (i = 0; i < 16; i++)
+ {
+ if (i < s)
+ {
+ _printk("%02X", p[i] & 0xFF);
+ } else
+ {
+ _printk(" ");
+ }
+ if ((i % 2) == 1) _printk(" ");
+ if ((i % 8) == 7) _printk(" ");
+ }
+ _printk(" |");
+ for (i = 0; i < 16; i++)
+ {
+ if (i < s)
+ {
+ c = p[i] & 0xFF;
+ if ((c < 0x20) || (c >= 0x7F)) c = '.';
+ } else
+ {
+ c = ' ';
+ }
+ _printk("%c", c);
+ }
+ _printk("|\n");
+ s -= 16;
+ p += 16;
+ }
+}
+
+void
+_dump_buf(unsigned char *p, int s)
+{
+ _printk("\n");
+ _dump_buf_with_offset(p, s, 0);
+}
+
+/*
+ * Local variables:
+ * c-indent-level: 8
+ * c-basic-offset: 8
+ * tab-width: 8
+ * End:
+ */
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/misc-simple.c linux-2.6.20.4/arch/mips/boot/compressed/common/misc-simple.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/misc-simple.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/misc-simple.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,122 @@
+/*
+ * arch/mips/zboot/common/misc-simple.c
+ *
+ * Misc. bootloader code for many machines. This assumes you have are using
+ * a 6xx/7xx/74xx CPU in your machine. This assumes the chunk of memory
+ * below 8MB is free. Finally, it assumes you have a NS16550-style uart for
+ * your serial console. If a machine meets these requirements, it can quite
+ * likely use this code during boot.
+ *
+ * Author: Matt Porter <mporter@mvista.com>
+ * Derived from arch/ppc/boot/prep/misc.c
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ *
+ * 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.
+ */
+
+#include <linux/types.h>
+#include <linux/elf.h>
+#include <linux/config.h>
+
+#include <asm/page.h>
+
+#include "linux/zlib.h"
+
+extern struct NS16550 *com_port;
+
+char *avail_ram;
+char *end_avail;
+extern char _end[];
+char *zimage_start;
+
+#ifdef CONFIG_CMDLINE
+#define CMDLINE CONFIG_CMDLINE
+#else
+#define CMDLINE ""
+#endif
+char cmd_preset[] = CMDLINE;
+char cmd_buf[256];
+char *cmd_line = cmd_buf;
+
+/* The linker tells us where the image is.
+*/
+extern unsigned char __image_begin, __image_end;
+extern unsigned char __ramdisk_begin, __ramdisk_end;
+unsigned long initrd_size;
+
+extern void puts(const char *);
+extern void putc(const char c);
+extern void puthex(unsigned long val);
+extern void *memcpy(void * __dest, __const void * __src,
+ __kernel_size_t __n);
+extern void gunzip(void *, int, unsigned char *, int *);
+extern void udelay(long delay);
+extern int tstc(void);
+extern int getc(void);
+extern volatile struct NS16550 *serial_init(int chan);
+
+void
+decompress_kernel(unsigned long load_addr, int num_words,
+ unsigned long cksum, unsigned long *sp)
+{
+ extern unsigned long start;
+ int zimage_size;
+
+ com_port = (struct NS16550 *)serial_init(0);
+
+ initrd_size = (unsigned long)(&__ramdisk_end) -
+ (unsigned long)(&__ramdisk_begin);
+
+ /*
+ * Reveal where we were loaded at and where we
+ * were relocated to.
+ */
+ puts("loaded at: "); puthex(load_addr);
+ puts(" "); puthex((unsigned long)(load_addr + (4*num_words))); puts("\n");
+ if ( (unsigned long)load_addr != (unsigned long)&start )
+ {
+ puts("relocated to: "); puthex((unsigned long)&start);
+ puts(" ");
+ puthex((unsigned long)((unsigned long)&start + (4*num_words)));
+ puts("\n");
+ }
+
+ /*
+ * We link ourself to an arbitrary low address. When we run, we
+ * relocate outself to that address. __image_being points to
+ * the part of the image where the zImage is. -- Tom
+ */
+ zimage_start = (char *)(unsigned long)(&__image_begin);
+ zimage_size = (unsigned long)(&__image_end) -
+ (unsigned long)(&__image_begin);
+
+ /*
+ * The zImage and initrd will be between start and _end, so they've
+ * already been moved once. We're good to go now. -- Tom
+ */
+ puts("zimage at: "); puthex((unsigned long)zimage_start);
+ puts(" "); puthex((unsigned long)(zimage_size+zimage_start));
+ puts("\n");
+
+ if ( initrd_size ) {
+ puts("initrd at: ");
+ puthex((unsigned long)(&__ramdisk_begin));
+ puts(" "); puthex((unsigned long)(&__ramdisk_end));puts("\n");
+ }
+
+ /* assume the chunk below 8M is free */
+ avail_ram = (char *)AVAIL_RAM_START;
+ end_avail = (char *)AVAIL_RAM_END;
+
+ /* Display standard Linux/MIPS boot prompt for kernel args */
+ puts("Uncompressing Linux at load address ");
+ puthex(LOADADDR);
+ puts("\n");
+ /* I don't like this hard coded gunzip size (fixme) */
+ gunzip((void *)LOADADDR, 0x400000, zimage_start, &zimage_size);
+ puts("Now booting the kernel\n");
+}
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/no_initrd.c linux-2.6.20.4/arch/mips/boot/compressed/common/no_initrd.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/no_initrd.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/no_initrd.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,2 @@
+char initrd_data[1];
+int initrd_len = 0;
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/images/Makefile linux-2.6.20.4/arch/mips/boot/compressed/images/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/images/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/images/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,16 @@
+#
+# This dir holds all of the images for MIPS machines.
+# Tom Rini January 2001
+# Pete Popov 2004
+
+extra-y := vmlinux.bin vmlinux.gz
+
+OBJCOPYFLAGS_vmlinux.bin := -O binary
+$(obj)/vmlinux.bin: vmlinux FORCE
+ $(call if_changed,objcopy)
+
+$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,gzip)
+
+# Files generated that shall be removed upon make clean
+clean-files := vmlinux* zImage*
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/include/nonstdio.h linux-2.6.20.4/arch/mips/boot/compressed/include/nonstdio.h
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/include/nonstdio.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/include/nonstdio.h 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) Paul Mackerras 1997.
+ *
+ * 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.
+ */
+typedef int FILE;
+extern FILE *stdin, *stdout;
+#define NULL ((void *)0)
+#define EOF (-1)
+#define fopen(n, m) NULL
+#define fflush(f) 0
+#define fclose(f) 0
+extern char *fgets();
+
+#define perror(s) printf("%s: no files!\n", (s))
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/include/ns16550.h linux-2.6.20.4/arch/mips/boot/compressed/include/ns16550.h
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/include/ns16550.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/include/ns16550.h 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,46 @@
+/*
+ * NS16550 Serial Port
+ */
+
+/*
+ * Figure out which file will have the definitons of COMx
+ */
+
+/* Some machines have their uart registers 16 bytes apart. Most don't.
+ * TODO: Make this work like drivers/char/serial does - Tom */
+#if !defined(UART_REG_PAD)
+#define UART_REG_PAD(x)
+#endif
+
+struct NS16550
+ {
+ unsigned char rbr; /* 0 */
+ UART_REG_PAD(rbr)
+ unsigned char ier; /* 1 */
+ UART_REG_PAD(ier)
+ unsigned char fcr; /* 2 */
+ UART_REG_PAD(fcr)
+ unsigned char lcr; /* 3 */
+ UART_REG_PAD(lcr)
+ unsigned char mcr; /* 4 */
+ UART_REG_PAD(mcr)
+ unsigned char lsr; /* 5 */
+ UART_REG_PAD(lsr)
+ unsigned char msr; /* 6 */
+ UART_REG_PAD(msr)
+ unsigned char scr; /* 7 */
+ };
+
+#define thr rbr
+#define iir fcr
+#define dll rbr
+#define dlm ier
+
+#define LSR_DR 0x01 /* Data ready */
+#define LSR_OE 0x02 /* Overrun */
+#define LSR_PE 0x04 /* Parity error */
+#define LSR_FE 0x08 /* Framing error */
+#define LSR_BI 0x10 /* Break */
+#define LSR_THRE 0x20 /* Xmit holding register empty */
+#define LSR_TEMT 0x40 /* Xmitter empty */
+#define LSR_ERR 0x80 /* Error */
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/include/pb1000_serial.h linux-2.6.20.4/arch/mips/boot/compressed/include/pb1000_serial.h
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/include/pb1000_serial.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/include/pb1000_serial.h 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,20 @@
+/*
+ * arch/ppc/boot/include/sandpoint_serial.h
+ *
+ * Location of the COM ports on Motorola SPS Sandpoint machines
+ *
+ * Author: Mark A. Greer
+ * mgreer@mvista.com
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ *
+ * 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.
+ */
+
+#define COM1 0xfe0003f8
+#define COM2 0xfe0002f8
+#define COM3 0x00000000 /* No COM3 */
+#define COM4 0x00000000 /* No COM4 */
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/ld.script linux-2.6.20.4/arch/mips/boot/compressed/ld.script
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/ld.script 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/ld.script 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,151 @@
+OUTPUT_ARCH(mips)
+ENTRY(start)
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ /* . = 0x81000000; */
+ .init : { *(.init) } =0
+ .text :
+ {
+ _ftext = . ;
+ *(.text)
+ *(.rodata) *(.rodata.*)
+ *(.rodata1)
+ /* .gnu.warning sections are handled specially by elf32.em. */
+ *(.gnu.warning)
+ } =0
+ .kstrtab : { *(.kstrtab) }
+
+ . = ALIGN(16); /* Exception table */
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ __start___dbe_table = .; /* Exception table for data bus errors */
+ __dbe_table : { *(__dbe_table) }
+ __stop___dbe_table = .;
+
+ __start___ksymtab = .; /* Kernel symbol table */
+ __ksymtab : { *(__ksymtab) }
+ __stop___ksymtab = .;
+
+ _etext = .;
+
+ . = ALIGN(8192);
+ .data.init_task : { *(.data.init_task) }
+
+ /* Startup code */
+ . = ALIGN(4096);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(16);
+ __setup_start = .;
+ .setup.init : { *(.setup.init) }
+ __setup_end = .;
+ __initcall_start = .;
+ .initcall.init : { *(.initcall.init) }
+ __initcall_end = .;
+ . = ALIGN(4096); /* Align double page for init_task_union */
+ __init_end = .;
+
+ . = ALIGN(4096);
+ .data.page_aligned : { *(.data.idt) }
+
+ . = ALIGN(32);
+ .data.cacheline_aligned : { *(.data.cacheline_aligned) }
+
+ .fini : { *(.fini) } =0
+ .reginfo : { *(.reginfo) }
+ /* Adjust the address for the data segment. We want to adjust up to
+ the same address within the page on the next page up. It would
+ be more correct to do this:
+ . = .;
+ The current expression does not correctly handle the case of a
+ text segment ending precisely at the end of a page; it causes the
+ data segment to skip a page. The above expression does not have
+ this problem, but it will currently (2/95) cause BFD to allocate
+ a single segment, combining both text and data, for this case.
+ This will prevent the text segment from being shared among
+ multiple executions of the program; I think that is more
+ important than losing a page of the virtual address space (note
+ that no actual memory is lost; the page which is skipped can not
+ be referenced). */
+ . = .;
+ .data :
+ {
+ _fdata = . ;
+ *(.data)
+
+ /* Put the compressed image here, so bss is on the end. */
+ __image_begin = .;
+ *(.image)
+ __image_end = .;
+ /* Align the initial ramdisk image (INITRD) on page boundaries. */
+ . = ALIGN(4096);
+ __ramdisk_begin = .;
+ *(.initrd)
+ __ramdisk_end = .;
+ . = ALIGN(4096);
+
+ CONSTRUCTORS
+ }
+ .data1 : { *(.data1) }
+ _gp = . + 0x8000;
+ .lit8 : { *(.lit8) }
+ .lit4 : { *(.lit4) }
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+ .got : { *(.got.plt) *(.got) }
+ .dynamic : { *(.dynamic) }
+ /* We want the small data sections together, so single-instruction offsets
+ can access them all, and initialized data all before uninitialized, so
+ we can shorten the on-disk segment size. */
+ .sdata : { *(.sdata) }
+ . = ALIGN(4);
+ _edata = .;
+ PROVIDE (edata = .);
+
+ __bss_start = .;
+ _fbss = .;
+ .sbss : { *(.sbss) *(.scommon) }
+ .bss :
+ {
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ . = ALIGN(4);
+ _end = . ;
+ PROVIDE (end = .);
+ }
+
+ /* Sections to be discarded */
+ /DISCARD/ :
+ {
+ *(.text.exit)
+ *(.data.exit)
+ *(.exitcall.exit)
+ }
+
+ /* This is the MIPS specific mdebug section. */
+ .mdebug : { *(.mdebug) }
+ /* These are needed for ELF backends which have not yet been
+ converted to the new style linker. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ /* DWARF debug sections.
+ Symbols in the .debug DWARF section are relative to the beginning of the
+ section so we begin .debug at 0. It's not clear yet what needs to happen
+ for the others. */
+ .debug 0 : { *(.debug) }
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_aranges 0 : { *(.debug_aranges) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+ .line 0 : { *(.line) }
+ /* These must appear regardless of . */
+ .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
+ .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
+ .comment : { *(.comment) }
+ .note : { *(.note) }
+}
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/lib/Makefile linux-2.6.20.4/arch/mips/boot/compressed/lib/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/lib/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/lib/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,13 @@
+#
+# Makefile for some libs needed by zImage.
+#
+
+#lib-y := $(addprefix ../../../../../lib/zlib_inflate/, \
+# infblock.o infcodes.o inffast.o inflate.o inftrees.o infutil.o) \
+# $(addprefix ../../../../../lib/, ctype.o string.o) \
+# $(addprefix ../../../../../arch/mips/lib/, memcpy.o) \
+
+lib-y := $(addprefix ../../../../../lib/zlib_inflate/, \
+ inffast.o inflate.o inftrees.o inflate_syms.o) \
+ $(addprefix ../../../../../lib/, ctype.o string.o) \
+ $(addprefix ../../../../../arch/mips/lib/, memcpy.o) \
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/Makefile linux-2.6.20.4/arch/mips/boot/compressed/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,31 @@
+#
+# arch/mips/boot/compressed/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1994 by Linus Torvalds
+# Adapted for PowerPC by Gary Thomas
+# modified by Cort (cort@cs.nmt.edu)
+#
+# Ported to MIPS by Pete Popov, ppopov@embeddedalley.com
+#
+
+boot := arch/mips/boot
+compressed := arch/mips/boot/compressed
+
+CFLAGS += -fno-builtin -D__BOOTER__ -I$(compressed)/include
+
+BOOT_TARGETS = zImage zImage.flash
+
+bootdir-$(CONFIG_SOC_AU1X00) := au1xxx
+subdir-y := common lib images
+
+.PHONY: $(BOOT_TARGETS) $(bootdir-y)
+
+$(BOOT_TARGETS): $(bootdir-y)
+
+$(bootdir-y): $(addprefix $(obj)/,$(subdir-y)) \
+ $(addprefix $(obj)/,$(hostprogs-y))
+ $(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS)
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/entry linux-2.6.20.4/arch/mips/boot/compressed/utils/entry
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/entry 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/utils/entry 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+# grab the kernel_entry address from the vmlinux elf image
+entry=`$1 $2 | grep kernel_entry`
+
+fs=`echo $entry | grep ffffffff` # check toolchain output
+
+if [ -n "$fs" ]; then
+ echo "0x"`$1 $2 | grep kernel_entry | cut -c9- | awk '{print $1}'`
+else
+ echo "0x"`$1 $2 | grep kernel_entry | cut -c1- | awk '{print $1}'`
+fi
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/offset linux-2.6.20.4/arch/mips/boot/compressed/utils/offset
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/offset 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/utils/offset 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+echo "0x"`$1 -h $2 | grep $3 | grep -v zvmlinux| awk '{print $6}'`
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/size linux-2.6.20.4/arch/mips/boot/compressed/utils/size
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/size 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/utils/size 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+OFFSET=`$1 -h $2 | grep $3 | grep -v zvmlinux | awk '{print $3}'`
+echo "0x"$OFFSET
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/Makefile linux-2.6.20.4/arch/mips/boot/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/Makefile 2007-03-26 16:21:59.000000000 +0200
+++ linux-2.6.20.4/arch/mips/boot/Makefile 2007-04-11 10:03:49.000000000 +0200
@@ -25,6 +25,10 @@
VMLINUX = vmlinux
+ZBOOT_TARGETS = zImage zImage.flash
+bootdir-y := compressed
+
+
all: vmlinux.ecoff vmlinux.srec addinitrd
vmlinux.ecoff: $(obj)/elf2ecoff $(VMLINUX)
@@ -51,3 +55,12 @@
vmlinux.bin \
vmlinux.ecoff \
vmlinux.srec
+
+.PHONY: $(ZBOOT_TARGETS) $(bootdir-y)
+
+$(ZBOOT_TARGETS): $(bootdir-y)
+
+$(bootdir-y): $(addprefix $(obj)/,$(subdir-y)) \
+ $(addprefix $(obj)/,$(hostprogs-y))
+ $(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS)
+
diff -urbN linux-2.6.20.4-orig/arch/mips/Makefile linux-2.6.20.4/arch/mips/Makefile
--- linux-2.6.20.4-orig/arch/mips/Makefile 2007-03-26 16:21:59.000000000 +0200
+++ linux-2.6.20.4/arch/mips/Makefile 2007-04-13 15:25:26.000000000 +0200
@@ -713,12 +727,20 @@
vmlinux.srec: $(vmlinux-32)
+@$(call makeboot,$@)
+zImage: vmlinux
+ +@$(call makeboot,$@)
+
+zImage.flash: vmlinux
+ +@$(call makeboot,$@)
+
+
CLEAN_FILES += vmlinux.ecoff \
vmlinux.srec
archclean:
@$(MAKE) $(clean)=arch/mips/boot
@$(MAKE) $(clean)=arch/mips/lasat
+ @$(MAKE) $(clean)=arch/mips/boot/compressed
CLEAN_FILES += vmlinux.32 \
vmlinux.64 \
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH] building compressed kernel (au1000)
2007-04-16 9:01 [PATCH] building compressed kernel (au1000) Aeschbacher, Fabrice
@ 2007-04-16 9:01 ` Aeschbacher, Fabrice
2007-04-16 13:47 ` Ralf Baechle
1 sibling, 0 replies; 3+ messages in thread
From: Aeschbacher, Fabrice @ 2007-04-16 9:01 UTC (permalink / raw)
To: linux-mips
[-- Attachment #1: Type: text/plain, Size: 306 bytes --]
Hi,
Please find enclosed a patch (against 2.6.20.4) for building a
compressed kernel image (zImage) for mips / au1000.
This patch was only adapted from
http://www.freewrt.org/trac/browser/trunk/freewrt/target/linux/au1000-2.
6/patches/003-zImage.patch?rev=1
Best regards,
Fabrice Aeschbacher
[-- Attachment #2: patch-2.6.20.4-compressed --]
[-- Type: application/octet-stream, Size: 46715 bytes --]
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/au1xxx/head.S linux-2.6.20.4/arch/mips/boot/compressed/au1xxx/head.S
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/au1xxx/head.S 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/au1xxx/head.S 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,119 @@
+/*
+ * arch/mips/kernel/head.S
+ *
+ * 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) 1994, 1995 Waldorf Electronics
+ * Written by Ralf Baechle and Andreas Busse
+ * Copyright (C) 1995 - 1999 Ralf Baechle
+ * Copyright (C) 1996 Paul M. Antoine
+ * Modified for DECStation and hence R3000 support by Paul M. Antoine
+ * Further modifications by David S. Miller and Harald Koerfgen
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ *
+ * Head.S contains the MIPS exception handler and startup code.
+ *
+ **************************************************************************
+ * 9 Nov, 2000.
+ * Added Cache Error exception handler and SBDDP EJTAG debug exception.
+ *
+ * Kevin Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
+ **************************************************************************
+ */
+#include <linux/config.h>
+#include <linux/threads.h>
+
+#include <asm/asm.h>
+#include <asm/cacheops.h>
+#include <asm/mipsregs.h>
+#include <asm/cachectl.h>
+#include <asm/regdef.h>
+
+#define IndexInvalidate_I 0x00
+#define IndexWriteBack_D 0x01
+
+ .set noreorder
+ .cprestore
+ LEAF(start)
+start:
+ bal locate
+ nop
+locate:
+ subu s8, ra, 8 /* Where we were loaded */
+ la sp, (.stack + 8192)
+
+ move s0, a0 /* Save boot rom start args */
+ move s1, a1
+ move s2, a2
+ move s3, a3
+
+ la a0, start /* Where we were linked to run */
+
+ move a1, s8
+ la a2, _edata
+ subu t1, a2, a0
+ srl t1, t1, 2
+
+ /* copy text section */
+ li t0, 0
+1: lw v0, 0(a1)
+ nop
+ sw v0, 0(a0)
+ xor t0, t0, v0
+ addu a0, 4
+ bne a2, a0, 1b
+ addu a1, 4
+
+ /* Clear BSS */
+ la a0, _edata
+ la a2, _end
+2: sw zero, 0(a0)
+ bne a2, a0, 2b
+ addu a0, 4
+
+ /* push the D-Cache and invalidate I-Cache */
+ li k0, 0x80000000 # start address
+ li k1, 0x80004000 # end address (16KB I-Cache)
+ subu k1, 128
+
+1:
+ .set mips3
+ cache IndexWriteBack_D, 0(k0)
+ cache IndexWriteBack_D, 32(k0)
+ cache IndexWriteBack_D, 64(k0)
+ cache IndexWriteBack_D, 96(k0)
+ cache IndexInvalidate_I, 0(k0)
+ cache IndexInvalidate_I, 32(k0)
+ cache IndexInvalidate_I, 64(k0)
+ cache IndexInvalidate_I, 96(k0)
+ .set mips0
+
+ bne k0, k1, 1b
+ addu k0, k0, 128
+ /* done */
+
+ move a0, s8 /* load address */
+ move a1, t1 /* length in words */
+ move a2, t0 /* checksum */
+ move a3, sp
+
+ la ra, 1f
+ la k0, decompress_kernel
+ jr k0
+ nop
+1:
+
+ move a0, s0
+ move a1, s1
+ move a2, s2
+ move a3, s3
+ li k0, KERNEL_ENTRY
+ jr k0
+ nop
+3:
+ b 3b
+ END(start)
+ .comm .stack,4096*2,4
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/au1xxx/Makefile linux-2.6.20.4/arch/mips/boot/compressed/au1xxx/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/au1xxx/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/au1xxx/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,112 @@
+# arch/mips/boot/compressed/au1xxx/Makefile
+#
+# Makefile for AMD Alchemy Semiconductor Au1x based boards.
+# All of the boot loader code was derived from the ppc
+# boot code.
+#
+# Copyright 2001,2002 MontaVista Software Inc.
+#
+# Author: Mark A. Greer
+# mgreer@mvista.com
+#
+# Copyright 2004 Embedded Alley Solutions, Inc
+# Ported and modified for mips 2.6 support by
+# Pete Popov <ppopov@embeddedalley.com>
+#
+# 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.
+
+boot := arch/mips/boot
+compressed := $(boot)/compressed
+utils := $(compressed)/utils
+lib := $(compressed)/lib
+images := $(compressed)/images
+common := $(compressed)/common
+
+#########################################################################
+# START BOARD SPECIFIC VARIABLES
+
+# These two variables control where the zImage is stored
+# in flash and loaded in memory. It only controls how the srec
+# file is generated, the code is the same.
+RAM_RUN_ADDR = 0x81000000
+
+ifdef CONFIG_MIPS_XXS1500
+FLASH_LOAD_ADDR = 0xBF000000
+else
+FLASH_LOAD_ADDR = 0xBFD00000
+endif
+
+# These two variables specify the free ram region
+# that can be used for temporary malloc area
+#AVAIL_RAM_START=0x80500000
+#AVAIL_RAM_END=0x80900000
+AVAIL_RAM_START=0x81400000
+AVAIL_RAM_END=0x81800000
+
+# This one must match the LOADADDR in arch/mips/Makefile!
+LOADADDR=0x80100000
+
+# WARNING WARNING WARNING
+# Note that with a LOADADDR of 0x80100000 and AVAIL_RAM_START of
+# 0x80500000, the max decompressed kernel size can be 4MB. Else we
+# start overwriting ourselve. You can change these vars as needed;
+# it would be much better if we just figured everything out on the fly.
+
+# END BOARD SPECIFIC VARIABLES
+#########################################################################
+
+OBJECTS := $(obj)/head.o $(common)/misc-common.o $(common)/misc-simple.o \
+ $(common)/au1k_uart.o
+LIBS := $(lib)/lib.a
+
+ENTRY := $(utils)/entry
+OFFSET := $(utils)/offset
+SIZE := $(utils)/size
+
+LD_ARGS := -T $(compressed)/ld.script -Ttext $(RAM_RUN_ADDR) -Bstatic
+
+ifdef CONFIG_CPU_LITTLE_ENDIAN
+OBJCOPY_ARGS = -O elf32-tradlittlemips
+else
+OBJCOPY_ARGS = -O elf32-tradbigmips
+endif
+
+$(obj)/head.o: $(obj)/head.S $(TOPDIR)/vmlinux
+ $(CC) -I $(TOPDIR)/include $(AFLAGS) \
+ -DKERNEL_ENTRY=$(shell sh $(ENTRY) $(NM) $(TOPDIR)/vmlinux ) \
+ -c -o $@ $<
+
+$(common)/misc-simple.o:
+ $(CC) -I $(TOPDIR)/include $(CFLAGS) -DINITRD_OFFSET=0 -DINITRD_SIZE=0 -DZIMAGE_OFFSET=0 \
+ -DAVAIL_RAM_START=$(AVAIL_RAM_START) \
+ -DAVAIL_RAM_END=$(AVAIL_RAM_END) \
+ -DLOADADDR=$(LOADADDR) \
+ -DZIMAGE_SIZE=0 -c -o $@ $(common)/misc-simple.c
+
+$(obj)/zvmlinux: $(OBJECTS) $(LIBS) $(srctree)/$(compressed)/ld.script $(images)/vmlinux.gz $(common)/dummy.o
+ $(OBJCOPY) \
+ --add-section=.image=$(images)/vmlinux.gz \
+ --set-section-flags=.image=contents,alloc,load,readonly,data \
+ $(common)/dummy.o $(common)/image.o
+ $(LD) $(LD_ARGS) -o $@ $(OBJECTS) $(common)/image.o $(LIBS)
+ $(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R __kcrctab -R __ksymtab_strings \
+ -R .comment -R .stab -R .stabstr -R .initrd -R .sysmap
+
+# Here we manipulate the image in order to get it the necessary
+# srecord file we need.
+zImage: $(obj)/zvmlinux
+ mv $(obj)/zvmlinux $(images)/zImage
+ $(OBJCOPY) -O srec $(images)/zImage $(images)/zImage.srec
+ $(OBJCOPY) -O binary $(images)/zImage $(images)/zImage.bin
+
+zImage.flash: zImage
+ ( \
+ flash=${FLASH_LOAD_ADDR} ; \
+ ram=${RAM_RUN_ADDR} ; \
+ adjust=$$[ $$flash - $$ram ] ; \
+ $(OBJCOPY) -O srec --adjust-vma `printf '0x%08x' $$adjust` \
+ $(images)/zImage $(images)/zImage.flash.srec ; \
+ )
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/au1k_uart.c linux-2.6.20.4/arch/mips/boot/compressed/common/au1k_uart.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/au1k_uart.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/au1k_uart.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,103 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ * Simple Au1000 uart routines.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ * ppopov@mvista.com or source@mvista.com
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+//#include <linux/config.h>
+#include <asm/io.h>
+#include <asm/mach-au1x00/au1000.h>
+#include "ns16550.h"
+
+typedef unsigned char uint8;
+typedef unsigned int uint32;
+
+#define UART16550_BAUD_2400 2400
+#define UART16550_BAUD_4800 4800
+#define UART16550_BAUD_9600 9600
+#define UART16550_BAUD_19200 19200
+#define UART16550_BAUD_38400 38400
+#define UART16550_BAUD_57600 57600
+#define UART16550_BAUD_115200 115200
+
+#define UART16550_PARITY_NONE 0
+#define UART16550_PARITY_ODD 0x08
+#define UART16550_PARITY_EVEN 0x18
+#define UART16550_PARITY_MARK 0x28
+#define UART16550_PARITY_SPACE 0x38
+
+#define UART16550_DATA_5BIT 0x0
+#define UART16550_DATA_6BIT 0x1
+#define UART16550_DATA_7BIT 0x2
+#define UART16550_DATA_8BIT 0x3
+
+#define UART16550_STOP_1BIT 0x0
+#define UART16550_STOP_2BIT 0x4
+
+/* It would be nice if we had a better way to do this.
+ * It could be a variable defined in one of the board specific files.
+ */
+#undef UART_BASE
+#ifdef CONFIG_COGENT_CSB250
+#define UART_BASE UART3_ADDR
+#else
+#define UART_BASE UART0_ADDR
+#endif
+
+/* memory-mapped read/write of the port */
+#define UART16550_READ(y) (au_readl(UART_BASE + y) & 0xff)
+#define UART16550_WRITE(y,z) (au_writel(z&0xff, UART_BASE + y))
+
+/*
+ * We use uart 0, which is already initialized by
+ * yamon.
+ */
+volatile struct NS16550 *
+serial_init(int chan)
+{
+ volatile struct NS16550 *com_port;
+ com_port = (struct NS16550 *) UART_BASE;
+ return (com_port);
+}
+
+void
+serial_putc(volatile struct NS16550 *com_port, unsigned char c)
+{
+ while ((UART16550_READ(UART_LSR)&0x40) == 0);
+ UART16550_WRITE(UART_TX, c);
+}
+
+unsigned char
+serial_getc(volatile struct NS16550 *com_port)
+{
+ while((UART16550_READ(UART_LSR) & 0x1) == 0);
+ return UART16550_READ(UART_RX);
+}
+
+int
+serial_tstc(volatile struct NS16550 *com_port)
+{
+ return((UART16550_READ(UART_LSR) & LSR_DR) != 0);
+}
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/dummy.c linux-2.6.20.4/arch/mips/boot/compressed/common/dummy.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/dummy.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/dummy.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,4 @@
+int main(void)
+{
+ return 0;
+}
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/Makefile linux-2.6.20.4/arch/mips/boot/compressed/common/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,15 @@
+#
+# arch/mips/boot/compressed/common/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.
+#
+# Tom Rini January 2001
+#
+# Pete Popov, 2004
+#
+
+lib-y := misc-common.o no_initrd.o dummy.o
+lib-$(CONFIG_SOC_AU1X00) += au1k_uart.o
+
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/misc-common.c linux-2.6.20.4/arch/mips/boot/compressed/common/misc-common.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/misc-common.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/misc-common.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,434 @@
+/*
+ * arch/mips/boot/compressed/common/misc-common.c
+ *
+ * Misc. bootloader code (almost) all platforms can use
+ *
+ * Author: Johnnie Peters <jpeters@mvista.com>
+ * Editor: Tom Rini <trini@mvista.com>
+ *
+ * Derived from arch/ppc/boot/prep/misc.c
+ *
+ * Ported by Pete Popov <ppopov@mvista.com> to
+ * support mips board(s). I also got rid of the vga console
+ * code.
+ *
+ * Copyright 2000-2001 MontaVista Software Inc.
+ *
+ * Ported to MIPS 2.6 by Pete Popov, <ppopov@embeddedalley.com>
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdarg.h> /* for va_ bits */
+//#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/zlib.h>
+
+extern char *avail_ram;
+extern char *end_avail;
+extern char _end[];
+
+void puts(const char *);
+void putc(const char c);
+void puthex(unsigned long val);
+void _bcopy(char *src, char *dst, int len);
+void gunzip(void *, int, unsigned char *, int *);
+static int _cvt(unsigned long val, char *buf, long radix, char *digits);
+
+void _vprintk(void(*)(const char), const char *, va_list ap);
+
+struct NS16550 *com_port;
+
+int serial_tstc(volatile struct NS16550 *);
+unsigned char serial_getc(volatile struct NS16550 *);
+void serial_putc(volatile struct NS16550 *, unsigned char);
+
+void pause(void)
+{
+ puts("pause\n");
+}
+
+void exit(void)
+{
+ puts("exit\n");
+ while(1);
+}
+
+int tstc(void)
+{
+ return (serial_tstc(com_port));
+}
+
+int getc(void)
+{
+ while (1) {
+ if (serial_tstc(com_port))
+ return (serial_getc(com_port));
+ }
+}
+
+void
+putc(const char c)
+{
+ serial_putc(com_port, c);
+ if ( c == '\n' )
+ serial_putc(com_port, '\r');
+}
+
+void puts(const char *s)
+{
+ char c;
+ while ( ( c = *s++ ) != '\0' ) {
+ serial_putc(com_port, c);
+ if ( c == '\n' ) serial_putc(com_port, '\r');
+ }
+}
+
+void error(char *x)
+{
+ puts("\n\n");
+ puts(x);
+ puts("\n\n -- System halted");
+
+ while(1); /* Halt */
+}
+
+static void *zalloc(unsigned size)
+{
+ void *p = avail_ram;
+
+ size = (size + 7) & -8;
+ avail_ram += size;
+ if (avail_ram > end_avail) {
+ puts("oops... out of memory\n");
+ pause();
+ }
+ return p;
+}
+
+
+#define HEAD_CRC 2
+#define EXTRA_FIELD 4
+#define ORIG_NAME 8
+#define COMMENT 0x10
+#define RESERVED 0xe0
+
+#define DEFLATED 8
+
+void gunzip(void *dst, int dstlen, unsigned char *src, int *lenp)
+{
+ z_stream s;
+ int r, i, flags;
+
+ /* skip header */
+ i = 10;
+ flags = src[3];
+ if (src[2] != Z_DEFLATED || (flags & RESERVED) != 0) {
+ puts("bad gzipped data\n");
+ exit();
+ }
+ if ((flags & EXTRA_FIELD) != 0)
+ i = 12 + src[10] + (src[11] << 8);
+ if ((flags & ORIG_NAME) != 0)
+ while (src[i++] != 0)
+ ;
+ if ((flags & COMMENT) != 0)
+ while (src[i++] != 0)
+ ;
+ if ((flags & HEAD_CRC) != 0)
+ i += 2;
+ if (i >= *lenp) {
+ puts("gunzip: ran out of data in header\n");
+ exit();
+ }
+
+ /* Initialize ourself. */
+ s.workspace = zalloc(zlib_inflate_workspacesize());
+ r = zlib_inflateInit2(&s, -MAX_WBITS);
+ if (r != Z_OK) {
+ puts("zlib_inflateInit2 returned "); puthex(r); puts("\n");
+ exit();
+ }
+ s.next_in = src + i;
+ s.avail_in = *lenp - i;
+ s.next_out = dst;
+ s.avail_out = dstlen;
+ r = zlib_inflate(&s, Z_FINISH);
+ if (r != Z_OK && r != Z_STREAM_END) {
+ puts("inflate returned "); puthex(r); puts("\n");
+ exit();
+ }
+ *lenp = s.next_out - (unsigned char *) dst;
+ zlib_inflateEnd(&s);
+}
+
+void
+puthex(unsigned long val)
+{
+
+ unsigned char buf[10];
+ int i;
+ for (i = 7; i >= 0; i--)
+ {
+ buf[i] = "0123456789ABCDEF"[val & 0x0F];
+ val >>= 4;
+ }
+ buf[8] = '\0';
+ puts(buf);
+}
+
+#define FALSE 0
+#define TRUE 1
+
+void
+_printk(char const *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ _vprintk(putc, fmt, ap);
+ va_end(ap);
+ return;
+}
+
+#define is_digit(c) ((c >= '0') && (c <= '9'))
+
+void
+_vprintk(void(*putc)(const char), const char *fmt0, va_list ap)
+{
+ char c, sign, *cp = 0;
+ int left_prec, right_prec, zero_fill, length = 0, pad, pad_on_right;
+ char buf[32];
+ long val;
+ while ((c = *fmt0++))
+ {
+ if (c == '%')
+ {
+ c = *fmt0++;
+ left_prec = right_prec = pad_on_right = 0;
+ if (c == '-')
+ {
+ c = *fmt0++;
+ pad_on_right++;
+ }
+ if (c == '0')
+ {
+ zero_fill = TRUE;
+ c = *fmt0++;
+ } else
+ {
+ zero_fill = FALSE;
+ }
+ while (is_digit(c))
+ {
+ left_prec = (left_prec * 10) + (c - '0');
+ c = *fmt0++;
+ }
+ if (c == '.')
+ {
+ c = *fmt0++;
+ zero_fill++;
+ while (is_digit(c))
+ {
+ right_prec = (right_prec * 10) + (c - '0');
+ c = *fmt0++;
+ }
+ } else
+ {
+ right_prec = left_prec;
+ }
+ sign = '\0';
+ switch (c)
+ {
+ case 'd':
+ case 'x':
+ case 'X':
+ val = va_arg(ap, long);
+ switch (c)
+ {
+ case 'd':
+ if (val < 0)
+ {
+ sign = '-';
+ val = -val;
+ }
+ length = _cvt(val, buf, 10, "0123456789");
+ break;
+ case 'x':
+ length = _cvt(val, buf, 16, "0123456789abcdef");
+ break;
+ case 'X':
+ length = _cvt(val, buf, 16, "0123456789ABCDEF");
+ break;
+ }
+ cp = buf;
+ break;
+ case 's':
+ cp = va_arg(ap, char *);
+ length = strlen(cp);
+ break;
+ case 'c':
+ c = va_arg(ap, long /*char*/);
+ (*putc)(c);
+ continue;
+ default:
+ (*putc)('?');
+ }
+ pad = left_prec - length;
+ if (sign != '\0')
+ {
+ pad--;
+ }
+ if (zero_fill)
+ {
+ c = '0';
+ if (sign != '\0')
+ {
+ (*putc)(sign);
+ sign = '\0';
+ }
+ } else
+ {
+ c = ' ';
+ }
+ if (!pad_on_right)
+ {
+ while (pad-- > 0)
+ {
+ (*putc)(c);
+ }
+ }
+ if (sign != '\0')
+ {
+ (*putc)(sign);
+ }
+ while (length-- > 0)
+ {
+ (*putc)(c = *cp++);
+ if (c == '\n')
+ {
+ (*putc)('\r');
+ }
+ }
+ if (pad_on_right)
+ {
+ while (pad-- > 0)
+ {
+ (*putc)(c);
+ }
+ }
+ } else
+ {
+ (*putc)(c);
+ if (c == '\n')
+ {
+ (*putc)('\r');
+ }
+ }
+ }
+}
+
+int
+_cvt(unsigned long val, char *buf, long radix, char *digits)
+{
+ char temp[80];
+ char *cp = temp;
+ int length = 0;
+ if (val == 0)
+ { /* Special case */
+ *cp++ = '0';
+ } else
+ while (val)
+ {
+ *cp++ = digits[val % radix];
+ val /= radix;
+ }
+ while (cp != temp)
+ {
+ *buf++ = *--cp;
+ length++;
+ }
+ *buf = '\0';
+ return (length);
+}
+
+void
+_dump_buf_with_offset(unsigned char *p, int s, unsigned char *base)
+{
+ int i, c;
+ if ((unsigned int)s > (unsigned int)p)
+ {
+ s = (unsigned int)s - (unsigned int)p;
+ }
+ while (s > 0)
+ {
+ if (base)
+ {
+ _printk("%06X: ", (int)p - (int)base);
+ } else
+ {
+ _printk("%06X: ", p);
+ }
+ for (i = 0; i < 16; i++)
+ {
+ if (i < s)
+ {
+ _printk("%02X", p[i] & 0xFF);
+ } else
+ {
+ _printk(" ");
+ }
+ if ((i % 2) == 1) _printk(" ");
+ if ((i % 8) == 7) _printk(" ");
+ }
+ _printk(" |");
+ for (i = 0; i < 16; i++)
+ {
+ if (i < s)
+ {
+ c = p[i] & 0xFF;
+ if ((c < 0x20) || (c >= 0x7F)) c = '.';
+ } else
+ {
+ c = ' ';
+ }
+ _printk("%c", c);
+ }
+ _printk("|\n");
+ s -= 16;
+ p += 16;
+ }
+}
+
+void
+_dump_buf(unsigned char *p, int s)
+{
+ _printk("\n");
+ _dump_buf_with_offset(p, s, 0);
+}
+
+/*
+ * Local variables:
+ * c-indent-level: 8
+ * c-basic-offset: 8
+ * tab-width: 8
+ * End:
+ */
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/misc-simple.c linux-2.6.20.4/arch/mips/boot/compressed/common/misc-simple.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/misc-simple.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/misc-simple.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,122 @@
+/*
+ * arch/mips/zboot/common/misc-simple.c
+ *
+ * Misc. bootloader code for many machines. This assumes you have are using
+ * a 6xx/7xx/74xx CPU in your machine. This assumes the chunk of memory
+ * below 8MB is free. Finally, it assumes you have a NS16550-style uart for
+ * your serial console. If a machine meets these requirements, it can quite
+ * likely use this code during boot.
+ *
+ * Author: Matt Porter <mporter@mvista.com>
+ * Derived from arch/ppc/boot/prep/misc.c
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ *
+ * 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.
+ */
+
+#include <linux/types.h>
+#include <linux/elf.h>
+#include <linux/config.h>
+
+#include <asm/page.h>
+
+#include "linux/zlib.h"
+
+extern struct NS16550 *com_port;
+
+char *avail_ram;
+char *end_avail;
+extern char _end[];
+char *zimage_start;
+
+#ifdef CONFIG_CMDLINE
+#define CMDLINE CONFIG_CMDLINE
+#else
+#define CMDLINE ""
+#endif
+char cmd_preset[] = CMDLINE;
+char cmd_buf[256];
+char *cmd_line = cmd_buf;
+
+/* The linker tells us where the image is.
+*/
+extern unsigned char __image_begin, __image_end;
+extern unsigned char __ramdisk_begin, __ramdisk_end;
+unsigned long initrd_size;
+
+extern void puts(const char *);
+extern void putc(const char c);
+extern void puthex(unsigned long val);
+extern void *memcpy(void * __dest, __const void * __src,
+ __kernel_size_t __n);
+extern void gunzip(void *, int, unsigned char *, int *);
+extern void udelay(long delay);
+extern int tstc(void);
+extern int getc(void);
+extern volatile struct NS16550 *serial_init(int chan);
+
+void
+decompress_kernel(unsigned long load_addr, int num_words,
+ unsigned long cksum, unsigned long *sp)
+{
+ extern unsigned long start;
+ int zimage_size;
+
+ com_port = (struct NS16550 *)serial_init(0);
+
+ initrd_size = (unsigned long)(&__ramdisk_end) -
+ (unsigned long)(&__ramdisk_begin);
+
+ /*
+ * Reveal where we were loaded at and where we
+ * were relocated to.
+ */
+ puts("loaded at: "); puthex(load_addr);
+ puts(" "); puthex((unsigned long)(load_addr + (4*num_words))); puts("\n");
+ if ( (unsigned long)load_addr != (unsigned long)&start )
+ {
+ puts("relocated to: "); puthex((unsigned long)&start);
+ puts(" ");
+ puthex((unsigned long)((unsigned long)&start + (4*num_words)));
+ puts("\n");
+ }
+
+ /*
+ * We link ourself to an arbitrary low address. When we run, we
+ * relocate outself to that address. __image_being points to
+ * the part of the image where the zImage is. -- Tom
+ */
+ zimage_start = (char *)(unsigned long)(&__image_begin);
+ zimage_size = (unsigned long)(&__image_end) -
+ (unsigned long)(&__image_begin);
+
+ /*
+ * The zImage and initrd will be between start and _end, so they've
+ * already been moved once. We're good to go now. -- Tom
+ */
+ puts("zimage at: "); puthex((unsigned long)zimage_start);
+ puts(" "); puthex((unsigned long)(zimage_size+zimage_start));
+ puts("\n");
+
+ if ( initrd_size ) {
+ puts("initrd at: ");
+ puthex((unsigned long)(&__ramdisk_begin));
+ puts(" "); puthex((unsigned long)(&__ramdisk_end));puts("\n");
+ }
+
+ /* assume the chunk below 8M is free */
+ avail_ram = (char *)AVAIL_RAM_START;
+ end_avail = (char *)AVAIL_RAM_END;
+
+ /* Display standard Linux/MIPS boot prompt for kernel args */
+ puts("Uncompressing Linux at load address ");
+ puthex(LOADADDR);
+ puts("\n");
+ /* I don't like this hard coded gunzip size (fixme) */
+ gunzip((void *)LOADADDR, 0x400000, zimage_start, &zimage_size);
+ puts("Now booting the kernel\n");
+}
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/common/no_initrd.c linux-2.6.20.4/arch/mips/boot/compressed/common/no_initrd.c
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/common/no_initrd.c 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/common/no_initrd.c 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,2 @@
+char initrd_data[1];
+int initrd_len = 0;
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/images/Makefile linux-2.6.20.4/arch/mips/boot/compressed/images/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/images/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/images/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,16 @@
+#
+# This dir holds all of the images for MIPS machines.
+# Tom Rini January 2001
+# Pete Popov 2004
+
+extra-y := vmlinux.bin vmlinux.gz
+
+OBJCOPYFLAGS_vmlinux.bin := -O binary
+$(obj)/vmlinux.bin: vmlinux FORCE
+ $(call if_changed,objcopy)
+
+$(obj)/vmlinux.gz: $(obj)/vmlinux.bin FORCE
+ $(call if_changed,gzip)
+
+# Files generated that shall be removed upon make clean
+clean-files := vmlinux* zImage*
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/include/nonstdio.h linux-2.6.20.4/arch/mips/boot/compressed/include/nonstdio.h
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/include/nonstdio.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/include/nonstdio.h 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,18 @@
+/*
+ * Copyright (C) Paul Mackerras 1997.
+ *
+ * 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.
+ */
+typedef int FILE;
+extern FILE *stdin, *stdout;
+#define NULL ((void *)0)
+#define EOF (-1)
+#define fopen(n, m) NULL
+#define fflush(f) 0
+#define fclose(f) 0
+extern char *fgets();
+
+#define perror(s) printf("%s: no files!\n", (s))
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/include/ns16550.h linux-2.6.20.4/arch/mips/boot/compressed/include/ns16550.h
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/include/ns16550.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/include/ns16550.h 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,46 @@
+/*
+ * NS16550 Serial Port
+ */
+
+/*
+ * Figure out which file will have the definitons of COMx
+ */
+
+/* Some machines have their uart registers 16 bytes apart. Most don't.
+ * TODO: Make this work like drivers/char/serial does - Tom */
+#if !defined(UART_REG_PAD)
+#define UART_REG_PAD(x)
+#endif
+
+struct NS16550
+ {
+ unsigned char rbr; /* 0 */
+ UART_REG_PAD(rbr)
+ unsigned char ier; /* 1 */
+ UART_REG_PAD(ier)
+ unsigned char fcr; /* 2 */
+ UART_REG_PAD(fcr)
+ unsigned char lcr; /* 3 */
+ UART_REG_PAD(lcr)
+ unsigned char mcr; /* 4 */
+ UART_REG_PAD(mcr)
+ unsigned char lsr; /* 5 */
+ UART_REG_PAD(lsr)
+ unsigned char msr; /* 6 */
+ UART_REG_PAD(msr)
+ unsigned char scr; /* 7 */
+ };
+
+#define thr rbr
+#define iir fcr
+#define dll rbr
+#define dlm ier
+
+#define LSR_DR 0x01 /* Data ready */
+#define LSR_OE 0x02 /* Overrun */
+#define LSR_PE 0x04 /* Parity error */
+#define LSR_FE 0x08 /* Framing error */
+#define LSR_BI 0x10 /* Break */
+#define LSR_THRE 0x20 /* Xmit holding register empty */
+#define LSR_TEMT 0x40 /* Xmitter empty */
+#define LSR_ERR 0x80 /* Error */
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/include/pb1000_serial.h linux-2.6.20.4/arch/mips/boot/compressed/include/pb1000_serial.h
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/include/pb1000_serial.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/include/pb1000_serial.h 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,20 @@
+/*
+ * arch/ppc/boot/include/sandpoint_serial.h
+ *
+ * Location of the COM ports on Motorola SPS Sandpoint machines
+ *
+ * Author: Mark A. Greer
+ * mgreer@mvista.com
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ *
+ * 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.
+ */
+
+#define COM1 0xfe0003f8
+#define COM2 0xfe0002f8
+#define COM3 0x00000000 /* No COM3 */
+#define COM4 0x00000000 /* No COM4 */
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/ld.script linux-2.6.20.4/arch/mips/boot/compressed/ld.script
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/ld.script 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/ld.script 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,151 @@
+OUTPUT_ARCH(mips)
+ENTRY(start)
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+ /* . = 0x81000000; */
+ .init : { *(.init) } =0
+ .text :
+ {
+ _ftext = . ;
+ *(.text)
+ *(.rodata) *(.rodata.*)
+ *(.rodata1)
+ /* .gnu.warning sections are handled specially by elf32.em. */
+ *(.gnu.warning)
+ } =0
+ .kstrtab : { *(.kstrtab) }
+
+ . = ALIGN(16); /* Exception table */
+ __start___ex_table = .;
+ __ex_table : { *(__ex_table) }
+ __stop___ex_table = .;
+
+ __start___dbe_table = .; /* Exception table for data bus errors */
+ __dbe_table : { *(__dbe_table) }
+ __stop___dbe_table = .;
+
+ __start___ksymtab = .; /* Kernel symbol table */
+ __ksymtab : { *(__ksymtab) }
+ __stop___ksymtab = .;
+
+ _etext = .;
+
+ . = ALIGN(8192);
+ .data.init_task : { *(.data.init_task) }
+
+ /* Startup code */
+ . = ALIGN(4096);
+ __init_begin = .;
+ .text.init : { *(.text.init) }
+ .data.init : { *(.data.init) }
+ . = ALIGN(16);
+ __setup_start = .;
+ .setup.init : { *(.setup.init) }
+ __setup_end = .;
+ __initcall_start = .;
+ .initcall.init : { *(.initcall.init) }
+ __initcall_end = .;
+ . = ALIGN(4096); /* Align double page for init_task_union */
+ __init_end = .;
+
+ . = ALIGN(4096);
+ .data.page_aligned : { *(.data.idt) }
+
+ . = ALIGN(32);
+ .data.cacheline_aligned : { *(.data.cacheline_aligned) }
+
+ .fini : { *(.fini) } =0
+ .reginfo : { *(.reginfo) }
+ /* Adjust the address for the data segment. We want to adjust up to
+ the same address within the page on the next page up. It would
+ be more correct to do this:
+ . = .;
+ The current expression does not correctly handle the case of a
+ text segment ending precisely at the end of a page; it causes the
+ data segment to skip a page. The above expression does not have
+ this problem, but it will currently (2/95) cause BFD to allocate
+ a single segment, combining both text and data, for this case.
+ This will prevent the text segment from being shared among
+ multiple executions of the program; I think that is more
+ important than losing a page of the virtual address space (note
+ that no actual memory is lost; the page which is skipped can not
+ be referenced). */
+ . = .;
+ .data :
+ {
+ _fdata = . ;
+ *(.data)
+
+ /* Put the compressed image here, so bss is on the end. */
+ __image_begin = .;
+ *(.image)
+ __image_end = .;
+ /* Align the initial ramdisk image (INITRD) on page boundaries. */
+ . = ALIGN(4096);
+ __ramdisk_begin = .;
+ *(.initrd)
+ __ramdisk_end = .;
+ . = ALIGN(4096);
+
+ CONSTRUCTORS
+ }
+ .data1 : { *(.data1) }
+ _gp = . + 0x8000;
+ .lit8 : { *(.lit8) }
+ .lit4 : { *(.lit4) }
+ .ctors : { *(.ctors) }
+ .dtors : { *(.dtors) }
+ .got : { *(.got.plt) *(.got) }
+ .dynamic : { *(.dynamic) }
+ /* We want the small data sections together, so single-instruction offsets
+ can access them all, and initialized data all before uninitialized, so
+ we can shorten the on-disk segment size. */
+ .sdata : { *(.sdata) }
+ . = ALIGN(4);
+ _edata = .;
+ PROVIDE (edata = .);
+
+ __bss_start = .;
+ _fbss = .;
+ .sbss : { *(.sbss) *(.scommon) }
+ .bss :
+ {
+ *(.dynbss)
+ *(.bss)
+ *(COMMON)
+ . = ALIGN(4);
+ _end = . ;
+ PROVIDE (end = .);
+ }
+
+ /* Sections to be discarded */
+ /DISCARD/ :
+ {
+ *(.text.exit)
+ *(.data.exit)
+ *(.exitcall.exit)
+ }
+
+ /* This is the MIPS specific mdebug section. */
+ .mdebug : { *(.mdebug) }
+ /* These are needed for ELF backends which have not yet been
+ converted to the new style linker. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ /* DWARF debug sections.
+ Symbols in the .debug DWARF section are relative to the beginning of the
+ section so we begin .debug at 0. It's not clear yet what needs to happen
+ for the others. */
+ .debug 0 : { *(.debug) }
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_aranges 0 : { *(.debug_aranges) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+ .line 0 : { *(.line) }
+ /* These must appear regardless of . */
+ .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
+ .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
+ .comment : { *(.comment) }
+ .note : { *(.note) }
+}
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/lib/Makefile linux-2.6.20.4/arch/mips/boot/compressed/lib/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/lib/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/lib/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,13 @@
+#
+# Makefile for some libs needed by zImage.
+#
+
+#lib-y := $(addprefix ../../../../../lib/zlib_inflate/, \
+# infblock.o infcodes.o inffast.o inflate.o inftrees.o infutil.o) \
+# $(addprefix ../../../../../lib/, ctype.o string.o) \
+# $(addprefix ../../../../../arch/mips/lib/, memcpy.o) \
+
+lib-y := $(addprefix ../../../../../lib/zlib_inflate/, \
+ inffast.o inflate.o inftrees.o inflate_syms.o) \
+ $(addprefix ../../../../../lib/, ctype.o string.o) \
+ $(addprefix ../../../../../arch/mips/lib/, memcpy.o) \
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/Makefile linux-2.6.20.4/arch/mips/boot/compressed/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/Makefile 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/Makefile 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,31 @@
+#
+# arch/mips/boot/compressed/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1994 by Linus Torvalds
+# Adapted for PowerPC by Gary Thomas
+# modified by Cort (cort@cs.nmt.edu)
+#
+# Ported to MIPS by Pete Popov, ppopov@embeddedalley.com
+#
+
+boot := arch/mips/boot
+compressed := arch/mips/boot/compressed
+
+CFLAGS += -fno-builtin -D__BOOTER__ -I$(compressed)/include
+
+BOOT_TARGETS = zImage zImage.flash
+
+bootdir-$(CONFIG_SOC_AU1X00) := au1xxx
+subdir-y := common lib images
+
+.PHONY: $(BOOT_TARGETS) $(bootdir-y)
+
+$(BOOT_TARGETS): $(bootdir-y)
+
+$(bootdir-y): $(addprefix $(obj)/,$(subdir-y)) \
+ $(addprefix $(obj)/,$(hostprogs-y))
+ $(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS)
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/entry linux-2.6.20.4/arch/mips/boot/compressed/utils/entry
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/entry 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/utils/entry 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+# grab the kernel_entry address from the vmlinux elf image
+entry=`$1 $2 | grep kernel_entry`
+
+fs=`echo $entry | grep ffffffff` # check toolchain output
+
+if [ -n "$fs" ]; then
+ echo "0x"`$1 $2 | grep kernel_entry | cut -c9- | awk '{print $1}'`
+else
+ echo "0x"`$1 $2 | grep kernel_entry | cut -c1- | awk '{print $1}'`
+fi
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/offset linux-2.6.20.4/arch/mips/boot/compressed/utils/offset
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/offset 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/utils/offset 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+echo "0x"`$1 -h $2 | grep $3 | grep -v zvmlinux| awk '{print $6}'`
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/size linux-2.6.20.4/arch/mips/boot/compressed/utils/size
--- linux-2.6.20.4-orig/arch/mips/boot/compressed/utils/size 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.20.4/arch/mips/boot/compressed/utils/size 2007-04-11 09:59:48.000000000 +0200
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+OFFSET=`$1 -h $2 | grep $3 | grep -v zvmlinux | awk '{print $3}'`
+echo "0x"$OFFSET
diff -urbN linux-2.6.20.4-orig/arch/mips/boot/Makefile linux-2.6.20.4/arch/mips/boot/Makefile
--- linux-2.6.20.4-orig/arch/mips/boot/Makefile 2007-03-26 16:21:59.000000000 +0200
+++ linux-2.6.20.4/arch/mips/boot/Makefile 2007-04-11 10:03:49.000000000 +0200
@@ -25,6 +25,10 @@
VMLINUX = vmlinux
+ZBOOT_TARGETS = zImage zImage.flash
+bootdir-y := compressed
+
+
all: vmlinux.ecoff vmlinux.srec addinitrd
vmlinux.ecoff: $(obj)/elf2ecoff $(VMLINUX)
@@ -51,3 +55,12 @@
vmlinux.bin \
vmlinux.ecoff \
vmlinux.srec
+
+.PHONY: $(ZBOOT_TARGETS) $(bootdir-y)
+
+$(ZBOOT_TARGETS): $(bootdir-y)
+
+$(bootdir-y): $(addprefix $(obj)/,$(subdir-y)) \
+ $(addprefix $(obj)/,$(hostprogs-y))
+ $(Q)$(MAKE) $(build)=$(obj)/$@ $(MAKECMDGOALS)
+
diff -urbN linux-2.6.20.4-orig/arch/mips/Makefile linux-2.6.20.4/arch/mips/Makefile
--- linux-2.6.20.4-orig/arch/mips/Makefile 2007-03-26 16:21:59.000000000 +0200
+++ linux-2.6.20.4/arch/mips/Makefile 2007-04-13 15:25:26.000000000 +0200
@@ -713,12 +727,20 @@
vmlinux.srec: $(vmlinux-32)
+@$(call makeboot,$@)
+zImage: vmlinux
+ +@$(call makeboot,$@)
+
+zImage.flash: vmlinux
+ +@$(call makeboot,$@)
+
+
CLEAN_FILES += vmlinux.ecoff \
vmlinux.srec
archclean:
@$(MAKE) $(clean)=arch/mips/boot
@$(MAKE) $(clean)=arch/mips/lasat
+ @$(MAKE) $(clean)=arch/mips/boot/compressed
CLEAN_FILES += vmlinux.32 \
vmlinux.64 \
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] building compressed kernel (au1000)
2007-04-16 9:01 [PATCH] building compressed kernel (au1000) Aeschbacher, Fabrice
2007-04-16 9:01 ` Aeschbacher, Fabrice
@ 2007-04-16 13:47 ` Ralf Baechle
1 sibling, 0 replies; 3+ messages in thread
From: Ralf Baechle @ 2007-04-16 13:47 UTC (permalink / raw)
To: Aeschbacher, Fabrice; +Cc: linux-mips
On Mon, Apr 16, 2007 at 11:01:48AM +0200, Aeschbacher, Fabrice wrote:
Fabrice,
> Please find enclosed a patch (against 2.6.20.4) for building a
> compressed kernel image (zImage) for mips / au1000.
I see several #include <linux/config.h> but that file does no longer
exist in 2.6.20 which either means that code is dead code or has not
been compile tested ...
> This patch was only adapted from
> http://www.freewrt.org/trac/browser/trunk/freewrt/target/linux/au1000-2.
> 6/patches/003-zImage.patch?rev=1
Signed-off-by: ?
Ralf
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2007-04-16 13:55 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2007-04-16 9:01 [PATCH] building compressed kernel (au1000) Aeschbacher, Fabrice
2007-04-16 9:01 ` Aeschbacher, Fabrice
2007-04-16 13:47 ` Ralf Baechle
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