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authorlars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-01-11 04:44:45 +0000
committerlars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-01-11 04:44:45 +0000
commit809c03fe4c0f90c640b26e6a2792553b592c68f2 (patch)
tree9f8851bc32dbcd5a39bcb13ecf294dff3902aeab /target/linux/xburst/files-2.6.32/arch/mips/boot/compressed
parent19682a7752733bc6a45026d69c27575b9b7755fd (diff)
Merge xburst target.
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19098 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/xburst/files-2.6.32/arch/mips/boot/compressed')
-rw-r--r--target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/Makefile42
-rw-r--r--target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/dummy.c4
-rw-r--r--target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/head.S85
-rw-r--r--target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/ld.script151
-rw-r--r--target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/misc.c242
5 files changed, 524 insertions, 0 deletions
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/Makefile b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/Makefile
new file mode 100644
index 000000000..9b4132985
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/Makefile
@@ -0,0 +1,42 @@
+#
+# linux/arch/mips/boot/compressed/Makefile
+#
+# create a compressed zImage from the original vmlinux
+#
+
+targets := zImage vmlinuz vmlinux.bin.gz head.o misc.o piggy.o dummy.o
+
+OBJS := $(obj)/head.o $(obj)/misc.o
+
+LD_ARGS := -T $(obj)/ld.script -Ttext 0x80600000 -Bstatic
+OBJCOPY_ARGS := -O elf32-tradlittlemips
+
+ENTRY := $(obj)/../tools/entry
+FILESIZE := $(obj)/../tools/filesize
+
+drop-sections = .reginfo .mdebug .comment .note .pdr .options .MIPS.options
+strip-flags = $(addprefix --remove-section=,$(drop-sections))
+
+
+$(obj)/vmlinux.bin.gz: vmlinux
+ rm -f $(obj)/vmlinux.bin.gz
+ $(OBJCOPY) -O binary $(strip-flags) vmlinux $(obj)/vmlinux.bin
+ gzip -v9f $(obj)/vmlinux.bin
+
+$(obj)/head.o: $(obj)/head.S $(obj)/vmlinux.bin.gz vmlinux
+ $(CC) $(KBUILD_AFLAGS) \
+ -DIMAGESIZE=$(shell sh $(FILESIZE) $(obj)/vmlinux.bin.gz) \
+ -DKERNEL_ENTRY=$(shell sh $(ENTRY) $(NM) vmlinux ) \
+ -DLOADADDR=$(loadaddr) \
+ -c -o $(obj)/head.o $<
+
+$(obj)/vmlinuz: $(OBJS) $(obj)/ld.script $(obj)/vmlinux.bin.gz $(obj)/dummy.o
+ $(OBJCOPY) \
+ --add-section=.image=$(obj)/vmlinux.bin.gz \
+ --set-section-flags=.image=contents,alloc,load,readonly,data \
+ $(obj)/dummy.o $(obj)/piggy.o
+ $(LD) $(LD_ARGS) -o $@ $(OBJS) $(obj)/piggy.o
+ $(OBJCOPY) $(OBJCOPY_ARGS) $@ $@ -R .comment -R .stab -R .stabstr -R .initrd -R .sysmap
+
+zImage: $(obj)/vmlinuz
+ $(OBJCOPY) -O binary $(obj)/vmlinuz $(obj)/zImage
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/dummy.c b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/dummy.c
new file mode 100644
index 000000000..31dbf45bf
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/dummy.c
@@ -0,0 +1,4 @@
+int main(void)
+{
+ return 0;
+}
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/head.S b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/head.S
new file mode 100644
index 000000000..d9700eb50
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/head.S
@@ -0,0 +1,85 @@
+/*
+ * linux/arch/mips/boot/compressed/head.S
+ *
+ * Copyright (C) 2005-2008 Ingenic Semiconductor Inc.
+ */
+
+#include <asm/asm.h>
+#include <asm/cacheops.h>
+#include <asm/cachectl.h>
+#include <asm/regdef.h>
+
+#define IndexInvalidate_I 0x00
+#define IndexWriteBack_D 0x01
+
+ .set noreorder
+ LEAF(startup)
+startup:
+ move s0, a0 /* Save the boot loader transfered args */
+ move s1, a1
+ move s2, a2
+ move s3, a3
+
+ la a0, _edata
+ la a1, _end
+1: sw zero, 0(a0) /* Clear BSS section */
+ bne a1, a0, 1b
+ addu a0, 4
+
+ la sp, (.stack + 8192)
+
+ la a0, __image_begin
+ la a1, IMAGESIZE
+ la a2, LOADADDR
+ 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
+2:
+ b 32
+ END(startup)
+
+
+ LEAF(flushcaches)
+ la t0, 1f
+ la t1, 0xa0000000
+ or t0, t0, t1
+ jr t0
+ nop
+1:
+ li k0, 0x80000000 # start address
+ li k1, 0x80004000 # end address (16KB I-Cache)
+ subu k1, 128
+
+2:
+ .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, 2b
+ addu k0, k0, 128
+ la t0, 3f
+ jr t0
+ nop
+3:
+ jr ra
+ nop
+ END(flushcaches)
+
+ .comm .stack,4096*2,4
diff --git a/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/ld.script b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/ld.script
new file mode 100644
index 000000000..fcf8ba041
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/ld.script
@@ -0,0 +1,151 @@
+OUTPUT_ARCH(mips)
+ENTRY(startup)
+SECTIONS
+{
+ /* Read-only sections, merged into text segment: */
+
+ .init : { *(.init) } =0
+ .text :
+ {
+ _ftext = . ;
+ *(.text)
+ *(.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 --git a/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/misc.c b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/misc.c
new file mode 100644
index 000000000..2309feea3
--- /dev/null
+++ b/target/linux/xburst/files-2.6.32/arch/mips/boot/compressed/misc.c
@@ -0,0 +1,242 @@
+/*
+ * linux/arch/mips/boot/compressed/misc.c
+ *
+ * This is a collection of several routines from gzip-1.0.3
+ * adapted for Linux.
+ *
+ * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
+ *
+ * Adapted for JZSOC by Peter Wei, 2008
+ *
+ */
+
+#define size_t int
+#define NULL 0
+
+/*
+ * gzip declarations
+ */
+
+#define OF(args) args
+#define STATIC static
+
+#undef memset
+#undef memcpy
+#define memzero(s, n) memset ((s), 0, (n))
+
+typedef unsigned char uch;
+typedef unsigned short ush;
+typedef unsigned long ulg;
+
+#define WSIZE 0x8000 /* Window size must be at least 32k, */
+ /* and a power of two */
+
+static uch *inbuf; /* input buffer */
+static uch window[WSIZE]; /* Sliding window buffer */
+
+static unsigned insize = 0; /* valid bytes in inbuf */
+static unsigned inptr = 0; /* index of next byte to be processed in inbuf */
+static unsigned outcnt = 0; /* bytes in output buffer */
+
+/* gzip flag byte */
+#define ASCII_FLAG 0x01 /* bit 0 set: file probably ASCII text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
+#define COMMENT 0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
+#define RESERVED 0xC0 /* bit 6,7: reserved */
+
+#define get_byte() (inptr < insize ? inbuf[inptr++] : fill_inbuf())
+
+/* Diagnostic functions */
+#ifdef DEBUG
+# define Assert(cond,msg) {if(!(cond)) error(msg);}
+# define Trace(x) fprintf x
+# define Tracev(x) {if (verbose) fprintf x ;}
+# define Tracevv(x) {if (verbose>1) fprintf x ;}
+# define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
+# define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
+#else
+# define Assert(cond,msg)
+# define Trace(x)
+# define Tracev(x)
+# define Tracevv(x)
+# define Tracec(c,x)
+# define Tracecv(c,x)
+#endif
+
+static int fill_inbuf(void);
+static void flush_window(void);
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+void* memset(void* s, int c, size_t n);
+void* memcpy(void* __dest, __const void* __src, size_t __n);
+
+extern void flushcaches(void); /* defined in head.S */
+
+char *input_data;
+int input_len;
+
+static long bytes_out = 0;
+static uch *output_data;
+static unsigned long output_ptr = 0;
+
+
+static void *malloc(int size);
+static void free(void *where);
+static void error(char *m);
+static void gzip_mark(void **);
+static void gzip_release(void **);
+
+static void puts(const char *str)
+{
+}
+
+extern unsigned char _end[];
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+
+#define HEAP_SIZE 0x10000
+
+#include "../../../../lib/inflate.c"
+
+static void *malloc(int size)
+{
+ void *p;
+
+ if (size <0) error("Malloc error\n");
+ if (free_mem_ptr == 0) error("Memory error\n");
+
+ free_mem_ptr = (free_mem_ptr + 3) & ~3; /* Align */
+
+ p = (void *)free_mem_ptr;
+ free_mem_ptr += size;
+
+ if (free_mem_ptr >= free_mem_end_ptr)
+ error("\nOut of memory\n");
+
+ return p;
+}
+
+static void free(void *where)
+{ /* Don't care */
+}
+
+static void gzip_mark(void **ptr)
+{
+ *ptr = (void *) free_mem_ptr;
+}
+
+static void gzip_release(void **ptr)
+{
+ free_mem_ptr = (long) *ptr;
+}
+
+void* memset(void* s, int c, size_t n)
+{
+ int i;
+ char *ss = (char*)s;
+
+ for (i=0;i<n;i++) ss[i] = c;
+ return s;
+}
+
+void* memcpy(void* __dest, __const void* __src, size_t __n)
+{
+ int i = 0;
+ unsigned char *d = (unsigned char *)__dest, *s = (unsigned char *)__src;
+
+ for (i = __n >> 3; i > 0; i--) {
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ }
+
+ if (__n & 1 << 2) {
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ *d++ = *s++;
+ }
+
+ if (__n & 1 << 1) {
+ *d++ = *s++;
+ *d++ = *s++;
+ }
+
+ if (__n & 1)
+ *d++ = *s++;
+
+ return __dest;
+}
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty
+ * and at least one byte is really needed.
+ */
+static int fill_inbuf(void)
+{
+ if (insize != 0) {
+ error("ran out of input data\n");
+ }
+
+ inbuf = input_data;
+ insize = input_len;
+ inptr = 1;
+ return inbuf[0];
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+static void flush_window(void)
+{
+ ulg c = crc; /* temporary variable */
+ unsigned n;
+ uch *in, *out, ch;
+
+ in = window;
+ out = &output_data[output_ptr];
+ for (n = 0; n < outcnt; n++) {
+ ch = *out++ = *in++;
+ c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+ }
+ crc = c;
+ bytes_out += (ulg)outcnt;
+ output_ptr += (ulg)outcnt;
+ outcnt = 0;
+}
+
+static void error(char *x)
+{
+ puts("\n\n");
+ puts(x);
+ puts("\n\n -- System halted");
+
+ while(1); /* Halt */
+}
+
+void decompress_kernel(unsigned int imageaddr, unsigned int imagesize, unsigned int loadaddr)
+{
+ input_data = (char *)imageaddr;
+ input_len = imagesize;
+ output_ptr = 0;
+ output_data = (uch *)loadaddr;
+ free_mem_ptr = (unsigned long)_end;
+ free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
+
+ makecrc();
+ puts("Uncompressing Linux...");
+ gunzip();
+ flushcaches();
+ puts("Ok, booting the kernel.");
+}