diff options
Diffstat (limited to 'arch/mips/boot')
| -rw-r--r-- | arch/mips/boot/.gitignore | 3 | ||||
| -rw-r--r-- | arch/mips/boot/Makefile | 68 | ||||
| -rw-r--r-- | arch/mips/boot/addinitrd.c | 131 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/Makefile | 120 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/calc_vmlinuz_load_addr.c | 57 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/dbg.c | 36 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/decompress.c | 99 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/dummy.c | 4 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/head.S | 56 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/ld.script | 53 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/string.c | 28 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/uart-16550.c | 63 | ||||
| -rw-r--r-- | arch/mips/boot/compressed/uart-alchemy.c | 6 | ||||
| l--------- | arch/mips/boot/dts/include/dt-bindings | 1 | ||||
| -rw-r--r-- | arch/mips/boot/ecoff.h | 63 | ||||
| -rw-r--r-- | arch/mips/boot/elf2ecoff.c | 12 |
16 files changed, 601 insertions, 199 deletions
diff --git a/arch/mips/boot/.gitignore b/arch/mips/boot/.gitignore index ba63401c6e1..a73d6e2c4f6 100644 --- a/arch/mips/boot/.gitignore +++ b/arch/mips/boot/.gitignore @@ -1,4 +1,7 @@ mkboot elf2ecoff +vmlinux.* zImage zImage.tmp +calc_vmlinuz_load_addr +uImage diff --git a/arch/mips/boot/Makefile b/arch/mips/boot/Makefile index 2a209d74f0b..1466c002609 100644 --- a/arch/mips/boot/Makefile +++ b/arch/mips/boot/Makefile @@ -11,39 +11,47 @@ # Some DECstations need all possible sections of an ECOFF executable # ifdef CONFIG_MACH_DECSTATION - E2EFLAGS = -a -else - E2EFLAGS = + e2eflag := -a endif # # Drop some uninteresting sections in the kernel. # This is only relevant for ELF kernels but doesn't hurt a.out # -drop-sections = .reginfo .mdebug .comment .note .pdr .options .MIPS.options -strip-flags = $(addprefix --remove-section=,$(drop-sections)) - -VMLINUX = vmlinux - -all: vmlinux.ecoff vmlinux.srec addinitrd - -vmlinux.ecoff: $(obj)/elf2ecoff $(VMLINUX) - $(obj)/elf2ecoff $(VMLINUX) vmlinux.ecoff $(E2EFLAGS) - -$(obj)/elf2ecoff: $(obj)/elf2ecoff.c - $(HOSTCC) -o $@ $^ - -vmlinux.bin: $(VMLINUX) - $(OBJCOPY) -O binary $(strip-flags) $(VMLINUX) $(obj)/vmlinux.bin - -vmlinux.srec: $(VMLINUX) - $(OBJCOPY) -S -O srec $(strip-flags) $(VMLINUX) $(obj)/vmlinux.srec - -$(obj)/addinitrd: $(obj)/addinitrd.c - $(HOSTCC) -o $@ $^ - -clean-files += addinitrd \ - elf2ecoff \ - vmlinux.bin \ - vmlinux.ecoff \ - vmlinux.srec +drop-sections := .reginfo .mdebug .comment .note .pdr .options .MIPS.options +strip-flags := $(addprefix --remove-section=,$(drop-sections)) + +hostprogs-y := elf2ecoff + +targets := vmlinux.ecoff +quiet_cmd_ecoff = ECOFF $@ + cmd_ecoff = $(obj)/elf2ecoff $(VMLINUX) $@ $(e2eflag) +$(obj)/vmlinux.ecoff: $(obj)/elf2ecoff $(VMLINUX) FORCE + $(call if_changed,ecoff) + +targets += vmlinux.bin +quiet_cmd_bin = OBJCOPY $@ + cmd_bin = $(OBJCOPY) -O binary $(strip-flags) $(VMLINUX) $@ +$(obj)/vmlinux.bin: $(VMLINUX) FORCE + $(call if_changed,bin) + +targets += vmlinux.srec +quiet_cmd_srec = OBJCOPY $@ + cmd_srec = $(OBJCOPY) -S -O srec $(strip-flags) $(VMLINUX) $@ +$(obj)/vmlinux.srec: $(VMLINUX) FORCE + $(call if_changed,srec) + +UIMAGE_LOADADDR = $(VMLINUX_LOAD_ADDRESS) +UIMAGE_ENTRYADDR = $(VMLINUX_ENTRY_ADDRESS) + +$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE + $(call if_changed,gzip) + +targets += uImage.gz +$(obj)/uImage.gz: $(obj)/vmlinux.bin.gz FORCE + $(call if_changed,uimage,gzip) + +targets += uImage +$(obj)/uImage: $(obj)/uImage.gz FORCE + @ln -sf $(notdir $<) $@ + @echo ' Image $@ is ready' diff --git a/arch/mips/boot/addinitrd.c b/arch/mips/boot/addinitrd.c deleted file mode 100644 index b5b3febc10c..00000000000 --- a/arch/mips/boot/addinitrd.c +++ /dev/null @@ -1,131 +0,0 @@ -/* - * addinitrd - program to add a initrd image to an ecoff kernel - * - * (C) 1999 Thomas Bogendoerfer - * minor modifications, cleanup: Guido Guenther <agx@sigxcpu.org> - * further cleanup: Maciej W. Rozycki - */ - -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <unistd.h> -#include <stdio.h> -#include <netinet/in.h> - -#include "ecoff.h" - -#define MIPS_PAGE_SIZE 4096 -#define MIPS_PAGE_MASK (MIPS_PAGE_SIZE-1) - -#define swab16(x) \ - ((unsigned short)( \ - (((unsigned short)(x) & (unsigned short)0x00ffU) << 8) | \ - (((unsigned short)(x) & (unsigned short)0xff00U) >> 8) )) - -#define swab32(x) \ - ((unsigned int)( \ - (((unsigned int)(x) & (unsigned int)0x000000ffUL) << 24) | \ - (((unsigned int)(x) & (unsigned int)0x0000ff00UL) << 8) | \ - (((unsigned int)(x) & (unsigned int)0x00ff0000UL) >> 8) | \ - (((unsigned int)(x) & (unsigned int)0xff000000UL) >> 24) )) - -#define SWAB(a) (swab ? swab32(a) : (a)) - -void die(char *s) -{ - perror(s); - exit(1); -} - -int main(int argc, char *argv[]) -{ - int fd_vmlinux, fd_initrd, fd_outfile; - FILHDR efile; - AOUTHDR eaout; - SCNHDR esecs[3]; - struct stat st; - char buf[1024]; - unsigned long loadaddr; - unsigned long initrd_header[2]; - int i, cnt; - int swab = 0; - - if (argc != 4) { - printf("Usage: %s <vmlinux> <initrd> <outfile>\n", argv[0]); - exit(1); - } - - if ((fd_vmlinux = open (argv[1], O_RDONLY)) < 0) - die("open vmlinux"); - if (read (fd_vmlinux, &efile, sizeof efile) != sizeof efile) - die("read file header"); - if (read (fd_vmlinux, &eaout, sizeof eaout) != sizeof eaout) - die("read aout header"); - if (read (fd_vmlinux, esecs, sizeof esecs) != sizeof esecs) - die("read section headers"); - /* - * check whether the file is good for us - */ - /* TBD */ - - /* - * check, if we have to swab words - */ - if (ntohs(0xaa55) == 0xaa55) { - if (efile.f_magic == swab16(MIPSELMAGIC)) - swab = 1; - } else { - if (efile.f_magic == swab16(MIPSEBMAGIC)) - swab = 1; - } - - /* make sure we have an empty data segment for the initrd */ - if (eaout.dsize || esecs[1].s_size) { - fprintf(stderr, "Data segment not empty. Giving up!\n"); - exit(1); - } - if ((fd_initrd = open (argv[2], O_RDONLY)) < 0) - die("open initrd"); - if (fstat (fd_initrd, &st) < 0) - die("fstat initrd"); - loadaddr = ((SWAB(esecs[2].s_vaddr) + SWAB(esecs[2].s_size) - + MIPS_PAGE_SIZE-1) & ~MIPS_PAGE_MASK) - 8; - if (loadaddr < (SWAB(esecs[2].s_vaddr) + SWAB(esecs[2].s_size))) - loadaddr += MIPS_PAGE_SIZE; - initrd_header[0] = SWAB(0x494E5244); - initrd_header[1] = SWAB(st.st_size); - eaout.dsize = esecs[1].s_size = initrd_header[1] = SWAB(st.st_size+8); - eaout.data_start = esecs[1].s_vaddr = esecs[1].s_paddr = SWAB(loadaddr); - - if ((fd_outfile = open (argv[3], O_RDWR|O_CREAT|O_TRUNC, 0666)) < 0) - die("open outfile"); - if (write (fd_outfile, &efile, sizeof efile) != sizeof efile) - die("write file header"); - if (write (fd_outfile, &eaout, sizeof eaout) != sizeof eaout) - die("write aout header"); - if (write (fd_outfile, esecs, sizeof esecs) != sizeof esecs) - die("write section headers"); - /* skip padding */ - if(lseek(fd_vmlinux, SWAB(esecs[0].s_scnptr), SEEK_SET) == (off_t)-1) - die("lseek vmlinux"); - if(lseek(fd_outfile, SWAB(esecs[0].s_scnptr), SEEK_SET) == (off_t)-1) - die("lseek outfile"); - /* copy text segment */ - cnt = SWAB(eaout.tsize); - while (cnt) { - if ((i = read (fd_vmlinux, buf, sizeof buf)) <= 0) - die("read vmlinux"); - if (write (fd_outfile, buf, i) != i) - die("write vmlinux"); - cnt -= i; - } - if (write (fd_outfile, initrd_header, sizeof initrd_header) != sizeof initrd_header) - die("write initrd header"); - while ((i = read (fd_initrd, buf, sizeof buf)) > 0) - if (write (fd_outfile, buf, i) != i) - die("write initrd"); - close(fd_vmlinux); - close(fd_initrd); - return 0; -} diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile new file mode 100644 index 00000000000..61af6b6ab13 --- /dev/null +++ b/arch/mips/boot/compressed/Makefile @@ -0,0 +1,120 @@ +# +# This file is subject to the terms and conditions of the GNU General Public +# License. +# +# Adapted for MIPS Pete Popov, Dan Malek +# +# Copyright (C) 1994 by Linus Torvalds +# Adapted for PowerPC by Gary Thomas +# modified by Cort (cort@cs.nmt.edu) +# +# Copyright (C) 2009 Lemote Inc. & DSLab, Lanzhou University +# Author: Wu Zhangjin <wuzhangjin@gmail.com> +# + +# set the default size of the mallocing area for decompressing +BOOT_HEAP_SIZE := 0x400000 + +# Disable Function Tracer +KBUILD_CFLAGS := $(shell echo $(KBUILD_CFLAGS) | sed -e "s/-pg//") + +KBUILD_CFLAGS := $(filter-out -fstack-protector, $(KBUILD_CFLAGS)) + +KBUILD_CFLAGS := $(LINUXINCLUDE) $(KBUILD_CFLAGS) -D__KERNEL__ \ + -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) -D"VMLINUX_LOAD_ADDRESS_ULL=$(VMLINUX_LOAD_ADDRESS)ull" + +KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \ + -DBOOT_HEAP_SIZE=$(BOOT_HEAP_SIZE) \ + -DKERNEL_ENTRY=$(VMLINUX_ENTRY_ADDRESS) + +targets := head.o decompress.o string.o dbg.o uart-16550.o uart-alchemy.o + +# decompressor objects (linked with vmlinuz) +vmlinuzobjs-y := $(obj)/head.o $(obj)/decompress.o $(obj)/string.o $(obj)/dbg.o + +ifdef CONFIG_DEBUG_ZBOOT +vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o +vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY) += $(obj)/uart-alchemy.o +endif + +ifdef CONFIG_KERNEL_XZ +vmlinuzobjs-y += $(obj)/../../lib/ashldi3.o +endif + +targets += vmlinux.bin +OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S +$(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE + $(call if_changed,objcopy) + +tool_$(CONFIG_KERNEL_GZIP) = gzip +tool_$(CONFIG_KERNEL_BZIP2) = bzip2 +tool_$(CONFIG_KERNEL_LZ4) = lz4 +tool_$(CONFIG_KERNEL_LZMA) = lzma +tool_$(CONFIG_KERNEL_LZO) = lzo +tool_$(CONFIG_KERNEL_XZ) = xzkern + +targets += vmlinux.bin.z +$(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE + $(call if_changed,$(tool_y)) + +targets += piggy.o +OBJCOPYFLAGS_piggy.o := --add-section=.image=$(obj)/vmlinux.bin.z \ + --set-section-flags=.image=contents,alloc,load,readonly,data +$(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE + $(call if_changed,objcopy) + +# Calculate the load address of the compressed kernel image +hostprogs-y := calc_vmlinuz_load_addr + +ifeq ($(CONFIG_MACH_JZ4740),y) +VMLINUZ_LOAD_ADDRESS := 0x80600000 +else +VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \ + $(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS)) +endif + +vmlinuzobjs-y += $(obj)/piggy.o + +quiet_cmd_zld = LD $@ + cmd_zld = $(LD) $(LDFLAGS) -Ttext $(VMLINUZ_LOAD_ADDRESS) -T $< $(vmlinuzobjs-y) -o $@ +quiet_cmd_strip = STRIP $@ + cmd_strip = $(STRIP) -s $@ +vmlinuz: $(src)/ld.script $(vmlinuzobjs-y) $(obj)/calc_vmlinuz_load_addr + $(call cmd,zld) + $(call cmd,strip) + +# +# Some DECstations need all possible sections of an ECOFF executable +# +ifdef CONFIG_MACH_DECSTATION + e2eflag := -a +endif + +# elf2ecoff can only handle 32bit image +hostprogs-y += ../elf2ecoff + +ifdef CONFIG_32BIT + VMLINUZ = vmlinuz +else + VMLINUZ = vmlinuz.32 +endif + +quiet_cmd_32 = OBJCOPY $@ + cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@ +vmlinuz.32: vmlinuz + $(call cmd,32) + +quiet_cmd_ecoff = ECOFF $@ + cmd_ecoff = $< $(VMLINUZ) $@ $(e2eflag) +vmlinuz.ecoff: $(obj)/../elf2ecoff $(VMLINUZ) + $(call cmd,ecoff) + +OBJCOPYFLAGS_vmlinuz.bin := $(OBJCOPYFLAGS) -O binary +vmlinuz.bin: vmlinuz + $(call cmd,objcopy) + +OBJCOPYFLAGS_vmlinuz.srec := $(OBJCOPYFLAGS) -S -O srec +vmlinuz.srec: vmlinuz + $(call cmd,objcopy) + +clean-files := $(objtree)/vmlinuz $(objtree)/vmlinuz.{32,ecoff,bin,srec} diff --git a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c new file mode 100644 index 00000000000..37fe58c19a9 --- /dev/null +++ b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2010 "Wu Zhangjin" <wuzhangjin@gmail.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. + */ + +#include <sys/types.h> +#include <sys/stat.h> +#include <errno.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> + +int main(int argc, char *argv[]) +{ + unsigned long long vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr; + struct stat sb; + + if (argc != 3) { + fprintf(stderr, "Usage: %s <pathname> <vmlinux_load_addr>\n", + argv[0]); + return EXIT_FAILURE; + } + + if (stat(argv[1], &sb) == -1) { + perror("stat"); + return EXIT_FAILURE; + } + + /* Convert hex characters to dec number */ + errno = 0; + if (sscanf(argv[2], "%llx", &vmlinux_load_addr) != 1) { + if (errno != 0) + perror("sscanf"); + else + fprintf(stderr, "No matching characters\n"); + + return EXIT_FAILURE; + } + + vmlinux_size = (uint64_t)sb.st_size; + vmlinuz_load_addr = vmlinux_load_addr + vmlinux_size; + + /* + * Align with 16 bytes: "greater than that used for any standard data + * types by a MIPS compiler." -- See MIPS Run Linux (Second Edition). + */ + + vmlinuz_load_addr += (16 - vmlinux_size % 16); + + printf("0x%llx\n", vmlinuz_load_addr); + + return EXIT_SUCCESS; +} diff --git a/arch/mips/boot/compressed/dbg.c b/arch/mips/boot/compressed/dbg.c new file mode 100644 index 00000000000..06c6a5bd175 --- /dev/null +++ b/arch/mips/boot/compressed/dbg.c @@ -0,0 +1,36 @@ +/* + * MIPS-specific debug support for pre-boot environment + * + * NOTE: putc() is board specific, if your board have a 16550 compatible uart, + * please select SYS_SUPPORTS_ZBOOT_UART16550 for your machine. othewise, you + * need to implement your own putc(). + */ +#include <linux/compiler.h> +#include <linux/types.h> + +void __weak putc(char c) +{ +} + +void puts(const char *s) +{ + char c; + while ((c = *s++) != '\0') { + putc(c); + if (c == '\n') + putc('\r'); + } +} + +void puthex(unsigned long 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); +} diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c new file mode 100644 index 00000000000..c00c4ddf451 --- /dev/null +++ b/arch/mips/boot/compressed/decompress.c @@ -0,0 +1,99 @@ +/* + * Copyright 2001 MontaVista Software Inc. + * Author: Matt Porter <mporter@mvista.com> + * + * Copyright (C) 2009 Lemote, Inc. + * Author: Wu Zhangjin <wuzhangjin@gmail.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. + */ + +#include <linux/types.h> +#include <linux/kernel.h> + +#include <asm/addrspace.h> + +/* + * These two variables specify the free mem region + * that can be used for temporary malloc area + */ +unsigned long free_mem_ptr; +unsigned long free_mem_end_ptr; + +/* The linker tells us where the image is. */ +extern unsigned char __image_begin, __image_end; + +/* debug interfaces */ +extern void puts(const char *s); +extern void puthex(unsigned long long val); + +void error(char *x) +{ + puts("\n\n"); + puts(x); + puts("\n\n -- System halted"); + + while (1) + ; /* Halt */ +} + +/* activate the code for pre-boot environment */ +#define STATIC static + +#ifdef CONFIG_KERNEL_GZIP +#include "../../../../lib/decompress_inflate.c" +#endif + +#ifdef CONFIG_KERNEL_BZIP2 +#include "../../../../lib/decompress_bunzip2.c" +#endif + +#ifdef CONFIG_KERNEL_LZ4 +#include "../../../../lib/decompress_unlz4.c" +#endif + +#ifdef CONFIG_KERNEL_LZMA +#include "../../../../lib/decompress_unlzma.c" +#endif + +#ifdef CONFIG_KERNEL_LZO +#include "../../../../lib/decompress_unlzo.c" +#endif + +#ifdef CONFIG_KERNEL_XZ +#include "../../../../lib/decompress_unxz.c" +#endif + +void decompress_kernel(unsigned long boot_heap_start) +{ + unsigned long zimage_start, zimage_size; + + zimage_start = (unsigned long)(&__image_begin); + zimage_size = (unsigned long)(&__image_end) - + (unsigned long)(&__image_begin); + + puts("zimage at: "); + puthex(zimage_start); + puts(" "); + puthex(zimage_size + zimage_start); + puts("\n"); + + /* This area are prepared for mallocing when decompressing */ + free_mem_ptr = boot_heap_start; + free_mem_end_ptr = boot_heap_start + BOOT_HEAP_SIZE; + + /* Display standard Linux/MIPS boot prompt */ + puts("Uncompressing Linux at load address "); + puthex(VMLINUX_LOAD_ADDRESS_ULL); + puts("\n"); + + /* Decompress the kernel with according algorithm */ + decompress((char *)zimage_start, zimage_size, 0, 0, + (void *)VMLINUX_LOAD_ADDRESS_ULL, 0, error); + + /* FIXME: should we flush cache here? */ + puts("Now, booting the kernel...\n"); +} diff --git a/arch/mips/boot/compressed/dummy.c b/arch/mips/boot/compressed/dummy.c new file mode 100644 index 00000000000..31dbf45bf99 --- /dev/null +++ b/arch/mips/boot/compressed/dummy.c @@ -0,0 +1,4 @@ +int main(void) +{ + return 0; +} diff --git a/arch/mips/boot/compressed/head.S b/arch/mips/boot/compressed/head.S new file mode 100644 index 00000000000..409cb483a9f --- /dev/null +++ b/arch/mips/boot/compressed/head.S @@ -0,0 +1,56 @@ +/* + * 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. + */ + +#include <asm/asm.h> +#include <asm/regdef.h> + + .set noreorder + .cprestore + LEAF(start) +start: + /* Save boot rom start args */ + move s0, a0 + move s1, a1 + move s2, a2 + move s3, a3 + + /* Clear BSS */ + PTR_LA a0, _edata + PTR_LA a2, _end +1: sw zero, 0(a0) + bne a2, a0, 1b + addiu a0, a0, 4 + + PTR_LA a0, (.heap) /* heap address */ + PTR_LA sp, (.stack + 8192) /* stack address */ + + PTR_LA ra, 2f + PTR_LA k0, decompress_kernel + jr k0 + nop +2: + move a0, s0 + move a1, s1 + move a2, s2 + move a3, s3 + PTR_LI k0, KERNEL_ENTRY + jr k0 + nop +3: + b 3b + nop + END(start) + + .comm .heap,BOOT_HEAP_SIZE,4 + .comm .stack,4096*2,4 diff --git a/arch/mips/boot/compressed/ld.script b/arch/mips/boot/compressed/ld.script new file mode 100644 index 00000000000..5a33409c7f6 --- /dev/null +++ b/arch/mips/boot/compressed/ld.script @@ -0,0 +1,53 @@ +/* + * ld.script for compressed kernel support of MIPS + * + * Copyright (C) 2009 Lemote Inc. + * Author: Wu Zhangjin <wuzhanjing@gmail.com> + * Copyright (C) 2010 "Wu Zhangjin" <wuzhanjing@gmail.com> + */ + +OUTPUT_ARCH(mips) +ENTRY(start) +PHDRS { + text PT_LOAD FLAGS(7); /* RWX */ +} +SECTIONS +{ + /* Text and read-only data */ + /* . = VMLINUZ_LOAD_ADDRESS; */ + .text : { + *(.text) + *(.rodata) + }: text + /* End of text section */ + + /* Writable data */ + .data : { + *(.data) + /* Put the compressed image here */ + __image_begin = .; + *(.image) + __image_end = .; + CONSTRUCTORS + } + . = ALIGN(16); + _edata = .; + /* End of data section */ + + /* BSS */ + .bss : { + *(.bss) + } + . = ALIGN(16); + _end = .; + + /* Sections to be discarded */ + /DISCARD/ : { + *(.MIPS.options) + *(.options) + *(.pdr) + *(.reginfo) + *(.comment) + *(.note) + } +} diff --git a/arch/mips/boot/compressed/string.c b/arch/mips/boot/compressed/string.c new file mode 100644 index 00000000000..9de9885acd0 --- /dev/null +++ b/arch/mips/boot/compressed/string.c @@ -0,0 +1,28 @@ +/* + * arch/mips/boot/compressed/string.c + * + * Very small subset of simple string routines + */ + +#include <linux/types.h> + +void *memcpy(void *dest, const void *src, size_t n) +{ + int i; + const char *s = src; + char *d = dest; + + for (i = 0; i < n; i++) + d[i] = s[i]; + return dest; +} + +void *memset(void *s, int c, size_t n) +{ + int i; + char *ss = s; + + for (i = 0; i < n; i++) + ss[i] = c; + return s; +} diff --git a/arch/mips/boot/compressed/uart-16550.c b/arch/mips/boot/compressed/uart-16550.c new file mode 100644 index 00000000000..237494b7a21 --- /dev/null +++ b/arch/mips/boot/compressed/uart-16550.c @@ -0,0 +1,63 @@ +/* + * 16550 compatible uart based serial debug support for zboot + */ + +#include <linux/types.h> +#include <linux/serial_reg.h> + +#include <asm/addrspace.h> + +#if defined(CONFIG_MACH_LOONGSON) || defined(CONFIG_MIPS_MALTA) +#define UART_BASE 0x1fd003f8 +#define PORT(offset) (CKSEG1ADDR(UART_BASE) + (offset)) +#endif + +#ifdef CONFIG_AR7 +#include <ar7.h> +#define PORT(offset) (CKSEG1ADDR(AR7_REGS_UART0) + (4 * offset)) +#endif + +#ifdef CONFIG_MACH_JZ4740 +#include <asm/mach-jz4740/base.h> +#define PORT(offset) (CKSEG1ADDR(JZ4740_UART0_BASE_ADDR) + (4 * offset)) +#endif + +#ifdef CONFIG_CPU_XLR +#define UART0_BASE 0x1EF14000 +#define PORT(offset) (CKSEG1ADDR(UART0_BASE) + (4 * offset)) +#define IOTYPE unsigned int +#endif + +#ifdef CONFIG_CPU_XLP +#define UART0_BASE 0x18030100 +#define PORT(offset) (CKSEG1ADDR(UART0_BASE) + (4 * offset)) +#define IOTYPE unsigned int +#endif + +#ifndef IOTYPE +#define IOTYPE char +#endif + +#ifndef PORT +#error please define the serial port address for your own machine +#endif + +static inline unsigned int serial_in(int offset) +{ + return *((volatile IOTYPE *)PORT(offset)) & 0xFF; +} + +static inline void serial_out(int offset, int value) +{ + *((volatile IOTYPE *)PORT(offset)) = value & 0xFF; +} + +void putc(char c) +{ + int timeout = 1000000; + + while (((serial_in(UART_LSR) & UART_LSR_THRE) == 0) && (timeout-- > 0)) + ; + + serial_out(UART_TX, c); +} diff --git a/arch/mips/boot/compressed/uart-alchemy.c b/arch/mips/boot/compressed/uart-alchemy.c new file mode 100644 index 00000000000..4bee55b93f6 --- /dev/null +++ b/arch/mips/boot/compressed/uart-alchemy.c @@ -0,0 +1,6 @@ +#include <asm/mach-au1x00/au1000.h> + +void putc(char c) +{ + alchemy_uart_putchar(AU1000_UART0_PHYS_ADDR, c); +} diff --git a/arch/mips/boot/dts/include/dt-bindings b/arch/mips/boot/dts/include/dt-bindings new file mode 120000 index 00000000000..08c00e4972f --- /dev/null +++ b/arch/mips/boot/dts/include/dt-bindings @@ -0,0 +1 @@ +../../../../../include/dt-bindings
\ No newline at end of file diff --git a/arch/mips/boot/ecoff.h b/arch/mips/boot/ecoff.h index 8c3eed2877f..7a75ce2c1bc 100644 --- a/arch/mips/boot/ecoff.h +++ b/arch/mips/boot/ecoff.h @@ -2,48 +2,47 @@ * Some ECOFF definitions. */ typedef struct filehdr { - unsigned short f_magic; /* magic number */ - unsigned short f_nscns; /* number of sections */ - long f_timdat; /* time & date stamp */ - long f_symptr; /* file pointer to symbolic header */ - long f_nsyms; /* sizeof(symbolic hdr) */ - unsigned short f_opthdr; /* sizeof(optional hdr) */ - unsigned short f_flags; /* flags */ + unsigned short f_magic; /* magic number */ + unsigned short f_nscns; /* number of sections */ + long f_timdat; /* time & date stamp */ + long f_symptr; /* file pointer to symbolic header */ + long f_nsyms; /* sizeof(symbolic hdr) */ + unsigned short f_opthdr; /* sizeof(optional hdr) */ + unsigned short f_flags; /* flags */ } FILHDR; -#define FILHSZ sizeof(FILHDR) +#define FILHSZ sizeof(FILHDR) -#define OMAGIC 0407 #define MIPSEBMAGIC 0x160 #define MIPSELMAGIC 0x162 typedef struct scnhdr { - char s_name[8]; /* section name */ - long s_paddr; /* physical address, aliased s_nlib */ - long s_vaddr; /* virtual address */ - long s_size; /* section size */ - long s_scnptr; /* file ptr to raw data for section */ - long s_relptr; /* file ptr to relocation */ - long s_lnnoptr; /* file ptr to gp histogram */ - unsigned short s_nreloc; /* number of relocation entries */ - unsigned short s_nlnno; /* number of gp histogram entries */ - long s_flags; /* flags */ + char s_name[8]; /* section name */ + long s_paddr; /* physical address, aliased s_nlib */ + long s_vaddr; /* virtual address */ + long s_size; /* section size */ + long s_scnptr; /* file ptr to raw data for section */ + long s_relptr; /* file ptr to relocation */ + long s_lnnoptr; /* file ptr to gp histogram */ + unsigned short s_nreloc; /* number of relocation entries */ + unsigned short s_nlnno; /* number of gp histogram entries */ + long s_flags; /* flags */ } SCNHDR; #define SCNHSZ sizeof(SCNHDR) #define SCNROUND ((long)16) typedef struct aouthdr { - short magic; /* see above */ - short vstamp; /* version stamp */ - long tsize; /* text size in bytes, padded to DW bdry*/ - long dsize; /* initialized data " " */ - long bsize; /* uninitialized data " " */ - long entry; /* entry pt. */ - long text_start; /* base of text used for this file */ - long data_start; /* base of data used for this file */ - long bss_start; /* base of bss used for this file */ - long gprmask; /* general purpose register mask */ - long cprmask[4]; /* co-processor register masks */ - long gp_value; /* the gp value used for this object */ + short magic; /* see above */ + short vstamp; /* version stamp */ + long tsize; /* text size in bytes, padded to DW bdry*/ + long dsize; /* initialized data " " */ + long bsize; /* uninitialized data " " */ + long entry; /* entry pt. */ + long text_start; /* base of text used for this file */ + long data_start; /* base of data used for this file */ + long bss_start; /* base of bss used for this file */ + long gprmask; /* general purpose register mask */ + long cprmask[4]; /* co-processor register masks */ + long gp_value; /* the gp value used for this object */ } AOUTHDR; #define AOUTHSZ sizeof(AOUTHDR) @@ -51,7 +50,7 @@ typedef struct aouthdr { #define NMAGIC 0410 #define ZMAGIC 0413 #define SMAGIC 0411 -#define LIBMAGIC 0443 +#define LIBMAGIC 0443 #define N_TXTOFF(f, a) \ ((a).magic == ZMAGIC || (a).magic == LIBMAGIC ? 0 : \ diff --git a/arch/mips/boot/elf2ecoff.c b/arch/mips/boot/elf2ecoff.c index c5a7f308c40..8585078ae50 100644 --- a/arch/mips/boot/elf2ecoff.c +++ b/arch/mips/boot/elf2ecoff.c @@ -29,7 +29,7 @@ /* elf2ecoff.c This program converts an elf executable to an ECOFF executable. - No symbol table is retained. This is useful primarily in building + No symbol table is retained. This is useful primarily in building net-bootable kernels for machines (e.g., DECstation and Alpha) which only support the ECOFF object file format. */ @@ -59,8 +59,8 @@ struct sect { }; int *symTypeTable; -int must_convert_endian = 0; -int format_bigendian = 0; +int must_convert_endian; +int format_bigendian; static void copy(int out, int in, off_t offset, off_t size) { @@ -341,7 +341,7 @@ int main(int argc, char *argv[]) /* Figure out if we can cram the program header into an ECOFF header... Basically, we can't handle anything but loadable - segments, but we can ignore some kinds of segments. We can't + segments, but we can ignore some kinds of segments. We can't handle holes in the address space. Segments may be out of order, so we sort them first. */ @@ -514,7 +514,7 @@ int main(int argc, char *argv[]) for (i = 0; i < nosecs; i++) { printf - ("Section %d: %s phys %lx size %lx file offset %lx\n", + ("Section %d: %s phys %lx size %lx file offset %lx\n", i, esecs[i].s_name, esecs[i].s_paddr, esecs[i].s_size, esecs[i].s_scnptr); } @@ -551,7 +551,7 @@ int main(int argc, char *argv[]) } /* - * Copy the loadable sections. Zero-fill any gaps less than 64k; + * Copy the loadable sections. Zero-fill any gaps less than 64k; * complain about any zero-filling, and die if we're asked to zero-fill * more than 64k. */ |