diff options
Diffstat (limited to 'arch/cris/arch-v32/boot')
| -rw-r--r-- | arch/cris/arch-v32/boot/Makefile | 20 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/compressed/Makefile | 26 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/compressed/README | 24 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/compressed/decompress.lds | 30 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/compressed/head.S | 145 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/compressed/misc.c | 318 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/rescue/Makefile | 26 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/rescue/head.S | 26 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/rescue/rescue.lds | 43 |
9 files changed, 0 insertions, 658 deletions
diff --git a/arch/cris/arch-v32/boot/Makefile b/arch/cris/arch-v32/boot/Makefile deleted file mode 100644 index 99896ad60b3..00000000000 --- a/arch/cris/arch-v32/boot/Makefile +++ /dev/null @@ -1,20 +0,0 @@ -# -# arch/cris/arch-v32/boot/Makefile -# - -OBJCOPYFLAGS = -O binary -R .note -R .comment - -subdir- := compressed rescue -targets := Image - -$(obj)/Image: vmlinux FORCE - $(call if_changed,objcopy) - @echo ' Kernel: $@ is ready' - -$(obj)/compressed/vmlinux: $(obj)/Image FORCE - $(Q)$(MAKE) $(build)=$(obj)/compressed $@ - $(Q)$(MAKE) $(build)=$(obj)/rescue $(obj)/rescue/rescue.bin - -$(obj)/zImage: $(obj)/compressed/vmlinux - @cp $< $@ - @echo ' Kernel: $@ is ready' diff --git a/arch/cris/arch-v32/boot/compressed/Makefile b/arch/cris/arch-v32/boot/compressed/Makefile deleted file mode 100644 index e176b8b69d9..00000000000 --- a/arch/cris/arch-v32/boot/compressed/Makefile +++ /dev/null @@ -1,26 +0,0 @@ -# -# arch/cris/arch-v32/boot/compressed/Makefile -# - -asflags-y += -I$(srctree)/include/asm/mach/ -I$(srctree)/include/asm/arch -ccflags-y += -O2 -I$(srctree)/include/asm/mach/ -I$(srctree)/include/asm/arch -ldflags-y += -T$(srctree)/$(src)/decompress.lds -OBJECTS = $(obj)/head.o $(obj)/misc.o -OBJCOPYFLAGS = -O binary --remove-section=.bss - -quiet_cmd_image = BUILD $@ -cmd_image = cat $(obj)/decompress.bin $(obj)/piggy.gz > $@ - -targets := vmlinux piggy.gz decompress.o decompress.bin - -$(obj)/decompress.o: $(OBJECTS) FORCE - $(call if_changed,ld) - -$(obj)/decompress.bin: $(obj)/decompress.o FORCE - $(call if_changed,objcopy) - -$(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE - $(call if_changed,image) - -$(obj)/piggy.gz: $(obj)/../Image FORCE - $(call if_changed,gzip) diff --git a/arch/cris/arch-v32/boot/compressed/README b/arch/cris/arch-v32/boot/compressed/README deleted file mode 100644 index 182c5d75784..00000000000 --- a/arch/cris/arch-v32/boot/compressed/README +++ /dev/null @@ -1,24 +0,0 @@ -Creation of the self-extracting compressed kernel image (vmlinuz) ------------------------------------------------------------------ - -This can be slightly confusing because it's a process with many steps. - -The kernel object built by the arch/etrax100/Makefile, vmlinux, is split -by that makefile into text and data binary files, vmlinux.text and -vmlinux.data. - -Those files together with a ROM filesystem can be catted together and -burned into a flash or executed directly at the DRAM origin. - -They can also be catted together and compressed with gzip, which is what -happens in this makefile. Together they make up piggy.img. - -The decompressor is built into the file decompress.o. It is turned into -the binary file decompress.bin, which is catted together with piggy.img -into the file vmlinuz. It can be executed in an arbitrary place in flash. - -Be careful - it assumes some things about free locations in DRAM. It -assumes the DRAM starts at 0x40000000 and that it is at least 8 MB, -so it puts its code at 0x40700000, and initial stack at 0x40800000. - --Bjorn diff --git a/arch/cris/arch-v32/boot/compressed/decompress.lds b/arch/cris/arch-v32/boot/compressed/decompress.lds deleted file mode 100644 index 3c837feca3a..00000000000 --- a/arch/cris/arch-v32/boot/compressed/decompress.lds +++ /dev/null @@ -1,30 +0,0 @@ -/*#OUTPUT_FORMAT(elf32-us-cris) */ -OUTPUT_ARCH (crisv32) - -MEMORY - { - dram : ORIGIN = 0x40700000, - LENGTH = 0x00100000 - } - -SECTIONS -{ - .text : - { - _stext = . ; - *(.text) - *(.rodata) - *(.rodata.*) - _etext = . ; - } > dram - .data : - { - *(.data) - _edata = . ; - } > dram - .bss : - { - *(.bss) - _end = ALIGN( 0x10 ) ; - } > dram -} diff --git a/arch/cris/arch-v32/boot/compressed/head.S b/arch/cris/arch-v32/boot/compressed/head.S deleted file mode 100644 index a4a65c5c669..00000000000 --- a/arch/cris/arch-v32/boot/compressed/head.S +++ /dev/null @@ -1,145 +0,0 @@ -/* - * Code that sets up the DRAM registers, calls the - * decompressor to unpack the piggybacked kernel, and jumps. - * - * Copyright (C) 1999 - 2006, Axis Communications AB - */ - -#define ASSEMBLER_MACROS_ONLY -#include <hwregs/asm/reg_map_asm.h> -#include <mach/startup.inc> - -#define RAM_INIT_MAGIC 0x56902387 -#define COMMAND_LINE_MAGIC 0x87109563 - - ;; Exported symbols - - .globl input_data - - .text -_start: - di - - ;; Start clocks for used blocks. - START_CLOCKS - - ;; Initialize the DRAM registers. - cmp.d RAM_INIT_MAGIC, $r8 ; Already initialized? - beq dram_init_finished - nop - -#if defined CONFIG_ETRAXFS -#include "../../mach-fs/dram_init.S" -#elif defined CONFIG_CRIS_MACH_ARTPEC3 -#include "../../mach-a3/dram_init.S" -#else -#error Only ETRAXFS and ARTPEC-3 supported! -#endif - -dram_init_finished: - - GIO_INIT - ;; Setup the stack to a suitably high address. - ;; We assume 8 MB is the minimum DRAM and put - ;; the SP at the top for now. - - move.d 0x40800000, $sp - - ;; Figure out where the compressed piggyback image is. - ;; It is either in [NOR] flash (we don't want to copy it - ;; to DRAM before unpacking), or copied to DRAM - ;; by the [NAND] flash boot loader. - ;; The piggyback image is at _edata, but relative to where the - ;; image is actually located in memory, not where it is linked - ;; (the decompressor is linked at 0x40700000+ and runs there). - ;; Use (_edata - herami) as offset to the current PC. - -hereami: - lapcq ., $r5 ; get PC - and.d 0x7fffffff, $r5 ; strip any non-cache bit - move.d $r5, $r0 ; source address of 'herami' - add.d _edata, $r5 - sub.d hereami, $r5 ; r5 = flash address of '_edata' - move.d hereami, $r1 ; destination - - ;; Copy text+data to DRAM - - move.d _edata, $r2 ; end destination -1: move.w [$r0+], $r3 ; from herami+ source - move.w $r3, [$r1+] ; to hereami+ destination (linked address) - cmp.d $r2, $r1 ; finish when destination == _edata - bcs 1b - nop - move.d input_data, $r0 ; for the decompressor - move.d $r5, [$r0] ; for the decompressor - - ;; Clear the decompressors BSS (between _edata and _end) - - moveq 0, $r0 - move.d _edata, $r1 - move.d _end, $r2 -1: move.w $r0, [$r1+] - cmp.d $r2, $r1 - bcs 1b - nop - - ;; Save command line magic and address. - move.d _cmd_line_magic, $r0 - move.d $r10, [$r0] - move.d _cmd_line_addr, $r0 - move.d $r11, [$r0] - - ;; Save boot source indicator - move.d _boot_source, $r0 - move.d $r12, [$r0] - - ;; Do the decompression and save compressed size in _inptr - - jsr decompress_kernel - nop - - ;; Restore boot source indicator - move.d _boot_source, $r12 - move.d [$r12], $r12 - - ;; Restore command line magic and address. - move.d _cmd_line_magic, $r10 - move.d [$r10], $r10 - move.d _cmd_line_addr, $r11 - move.d [$r11], $r11 - - ;; Put start address of root partition in r9 so the kernel can use it - ;; when mounting from flash - move.d input_data, $r0 - move.d [$r0], $r9 ; flash address of compressed kernel - move.d inptr, $r0 - add.d [$r0], $r9 ; size of compressed kernel - cmp.d 0x40000000, $r9 ; image in DRAM ? - blo enter_kernel ; no, must be [NOR] flash, jump - nop ; delay slot - and.d 0x001fffff, $r9 ; assume compressed kernel was < 2M - -enter_kernel: - ;; Enter the decompressed kernel - move.d RAM_INIT_MAGIC, $r8 ; Tell kernel that DRAM is initialized - jump 0x40004000 ; kernel is linked to this address - nop - - .data - -input_data: - .dword 0 ; used by the decompressor -_cmd_line_magic: - .dword 0 -_cmd_line_addr: - .dword 0 -_boot_source: - .dword 0 - -#if defined CONFIG_ETRAXFS -#include "../../mach-fs/hw_settings.S" -#elif defined CONFIG_CRIS_MACH_ARTPEC3 -#include "../../mach-a3/hw_settings.S" -#else -#error Only ETRAXFS and ARTPEC-3 supported! -#endif diff --git a/arch/cris/arch-v32/boot/compressed/misc.c b/arch/cris/arch-v32/boot/compressed/misc.c deleted file mode 100644 index 3595e16e82b..00000000000 --- a/arch/cris/arch-v32/boot/compressed/misc.c +++ /dev/null @@ -1,318 +0,0 @@ -/* - * misc.c - * - * This is a collection of several routines from gzip-1.0.3 - * adapted for Linux. - * - * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994 - * puts by Nick Holloway 1993, better puts by Martin Mares 1995 - * adaptation for Linux/CRIS Axis Communications AB, 1999 - * - */ - -/* where the piggybacked kernel image expects itself to live. - * it is the same address we use when we network load an uncompressed - * image into DRAM, and it is the address the kernel is linked to live - * at by vmlinux.lds.S - */ - -#define KERNEL_LOAD_ADR 0x40004000 - - -#include <linux/types.h> -#include <hwregs/reg_rdwr.h> -#include <hwregs/reg_map.h> -#include <hwregs/ser_defs.h> -#include <hwregs/pinmux_defs.h> -#ifdef CONFIG_CRIS_MACH_ARTPEC3 -#include <hwregs/clkgen_defs.h> -#endif - -/* - * gzip declarations - */ - -#define OF(args) args -#define STATIC static - -void* memset(void* s, int c, size_t n); -void* memcpy(void* __dest, __const void* __src, - size_t __n); - -#define memzero(s, n) memset ((s), 0, (n)) - - -typedef unsigned char uch; -typedef unsigned short ush; -typedef unsigned long ulg; - -#define WSIZE 0x8000 /* Window size must be at least 32k, */ - /* and a power of two */ - -static uch *inbuf; /* input buffer */ -static uch window[WSIZE]; /* Sliding window buffer */ - -unsigned inptr = 0; /* index of next byte to be processed in inbuf - * After decompression it will contain the - * compressed size, and head.S will read it. - */ - -static unsigned outcnt = 0; /* bytes in output buffer */ - -/* gzip flag byte */ -#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */ -#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */ -#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */ -#define ORIG_NAME 0x08 /* bit 3 set: original file name present */ -#define COMMENT 0x10 /* bit 4 set: file comment present */ -#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */ -#define RESERVED 0xC0 /* bit 6,7: reserved */ - -#define get_byte() inbuf[inptr++] - -/* Diagnostic functions */ -#ifdef DEBUG -# define Assert(cond,msg) {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 void flush_window(void); -static void error(char *m); - -extern char *input_data; /* lives in head.S */ - -static long bytes_out; -static uch *output_data; -static unsigned long output_ptr; - -static void error(char *m); - -static void puts(const char *); - -/* the "heap" is put directly after the BSS ends, at end */ - -extern int _end; -static long free_mem_ptr = (long)&_end; -static long free_mem_end_ptr; - -#include "../../../../../lib/inflate.c" - -/* decompressor info and error messages to serial console */ - -static inline void -serout(const char *s, reg_scope_instances regi_ser) -{ - reg_ser_rs_stat_din rs; - reg_ser_rw_dout dout = {.data = *s}; - - do { - rs = REG_RD(ser, regi_ser, rs_stat_din); - } - while (!rs.tr_rdy);/* Wait for transceiver. */ - - REG_WR(ser, regi_ser, rw_dout, dout); -} - -static void -puts(const char *s) -{ -#ifndef CONFIG_ETRAX_DEBUG_PORT_NULL - while (*s) { -#ifdef CONFIG_ETRAX_DEBUG_PORT0 - serout(s, regi_ser0); -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT1 - serout(s, regi_ser1); -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT2 - serout(s, regi_ser2); -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT3 - serout(s, regi_ser3); -#endif - *s++; - } -/* CONFIG_ETRAX_DEBUG_PORT_NULL */ -#endif -} - -void* -memset(void* s, int c, size_t n) -{ - int i; - char *ss = (char*)s; - - for (i=0;i<n;i++) ss[i] = c; - - return s; -} - -void* -memcpy(void* __dest, __const void* __src, - size_t __n) -{ - int i; - char *d = (char *)__dest, *s = (char *)__src; - - for (i=0;i<__n;i++) d[i] = s[i]; - - return __dest; -} - -/* =========================================================================== - * Write the output window window[0..outcnt-1] and update crc and bytes_out. - * (Used for the decompressed data only.) - */ - -static void -flush_window() -{ - 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("\r\n\n"); - puts(x); - puts("\r\n\n -- System halted\n"); - - while(1); /* Halt */ -} - -void -setup_normal_output_buffer(void) -{ - output_data = (char *)KERNEL_LOAD_ADR; -} - -static inline void -serial_setup(reg_scope_instances regi_ser) -{ - reg_ser_rw_xoff xoff; - reg_ser_rw_tr_ctrl tr_ctrl; - reg_ser_rw_rec_ctrl rec_ctrl; - reg_ser_rw_tr_baud_div tr_baud; - reg_ser_rw_rec_baud_div rec_baud; - - /* Turn off XOFF. */ - xoff = REG_RD(ser, regi_ser, rw_xoff); - - xoff.chr = 0; - xoff.automatic = regk_ser_no; - - REG_WR(ser, regi_ser, rw_xoff, xoff); - - /* Set baudrate and stopbits. */ - tr_ctrl = REG_RD(ser, regi_ser, rw_tr_ctrl); - rec_ctrl = REG_RD(ser, regi_ser, rw_rec_ctrl); - tr_baud = REG_RD(ser, regi_ser, rw_tr_baud_div); - rec_baud = REG_RD(ser, regi_ser, rw_rec_baud_div); - - tr_ctrl.stop_bits = 1; /* 2 stop bits. */ - tr_ctrl.en = 1; /* enable transmitter */ - rec_ctrl.en = 1; /* enabler receiver */ - - /* - * The baudrate setup used to be a bit fishy, but now transmitter and - * receiver are both set to the intended baud rate, 115200. - * The magic value is 29.493 MHz. - */ - tr_ctrl.base_freq = regk_ser_f29_493; - rec_ctrl.base_freq = regk_ser_f29_493; - tr_baud.div = (29493000 / 8) / 115200; - rec_baud.div = (29493000 / 8) / 115200; - - REG_WR(ser, regi_ser, rw_tr_ctrl, tr_ctrl); - REG_WR(ser, regi_ser, rw_tr_baud_div, tr_baud); - REG_WR(ser, regi_ser, rw_rec_ctrl, rec_ctrl); - REG_WR(ser, regi_ser, rw_rec_baud_div, rec_baud); -} - -void -decompress_kernel(void) -{ - char revision; - -#if defined(CONFIG_ETRAX_DEBUG_PORT1) || \ - defined(CONFIG_ETRAX_DEBUG_PORT2) || \ - defined(CONFIG_ETRAX_DEBUG_PORT3) - reg_pinmux_rw_hwprot hwprot; - -#ifdef CONFIG_CRIS_MACH_ARTPEC3 - reg_clkgen_rw_clk_ctrl clk_ctrl; - - /* Enable corresponding clock region when serial 1..3 selected */ - - clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl); - clk_ctrl.sser_ser_dma6_7 = regk_clkgen_yes; - REG_WR(clkgen, regi_clkgen, rw_clk_ctrl, clk_ctrl); -#endif - - /* pinmux setup for ports 1..3 */ - hwprot = REG_RD(pinmux, regi_pinmux, rw_hwprot); -#endif - -#ifdef CONFIG_ETRAX_DEBUG_PORT0 - serial_setup(regi_ser0); -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT1 - hwprot.ser1 = regk_pinmux_yes; - serial_setup(regi_ser1); -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT2 - hwprot.ser2 = regk_pinmux_yes; - serial_setup(regi_ser2); -#endif -#ifdef CONFIG_ETRAX_DEBUG_PORT3 - hwprot.ser3 = regk_pinmux_yes; - serial_setup(regi_ser3); -#endif -#if defined(CONFIG_ETRAX_DEBUG_PORT1) || \ - defined(CONFIG_ETRAX_DEBUG_PORT2) || \ - defined(CONFIG_ETRAX_DEBUG_PORT3) - REG_WR(pinmux, regi_pinmux, rw_hwprot, hwprot); -#endif - - /* input_data is set in head.S */ - inbuf = input_data; - - setup_normal_output_buffer(); - - makecrc(); - - __asm__ volatile ("move $vr,%0" : "=rm" (revision)); - if (revision < 32) - { - puts("You need an ETRAX FS to run Linux 2.6/crisv32.\r\n"); - while(1); - } - - puts("Uncompressing Linux...\r\n"); - gunzip(); - puts("Done. Now booting the kernel.\r\n"); -} diff --git a/arch/cris/arch-v32/boot/rescue/Makefile b/arch/cris/arch-v32/boot/rescue/Makefile deleted file mode 100644 index 566aac663a3..00000000000 --- a/arch/cris/arch-v32/boot/rescue/Makefile +++ /dev/null @@ -1,26 +0,0 @@ -# -# Makefile for rescue (bootstrap) code -# - -CC = gcc-cris -mlinux -march=v32 $(LINUXINCLUDE) -ccflags-y += -O2 -I $(srctree)/include/asm/arch/mach/ \ - -I $(srctree)/include/asm/arch -asflags-y += -I $(srctree)/include/asm/arch/mach/ -I $(srctree)/include/asm/arch -LD = gcc-cris -mlinux -march=v32 -nostdlib -ldflags-y += -T $(srctree)/$(src)/rescue.lds -LDPOSTFLAGS = -lgcc -OBJCOPYFLAGS = -O binary --remove-section=.bss -obj-$(CONFIG_ETRAX_AXISFLASHMAP) = head.o -OBJECT := $(obj)/head.o - -targets := rescue.o rescue.bin - -quiet_cmd_ldlibgcc = LD $@ -cmd_ldlibgcc = $(LD) $(LDFLAGS) $(filter-out FORCE,$^) $(LDPOSTFLAGS) -o $@ - -$(obj)/rescue.o: $(OBJECTS) FORCE - $(call if_changed,ldlibgcc) - -$(obj)/rescue.bin: $(obj)/rescue.o FORCE - $(call if_changed,objcopy) - cp -p $(obj)/rescue.bin $(objtree) diff --git a/arch/cris/arch-v32/boot/rescue/head.S b/arch/cris/arch-v32/boot/rescue/head.S deleted file mode 100644 index 5f846b7700a..00000000000 --- a/arch/cris/arch-v32/boot/rescue/head.S +++ /dev/null @@ -1,26 +0,0 @@ -/* - * Just get started by jumping to CONFIG_ETRAX_PTABLE_SECTOR to start - * kernel decompressor. - * - * In practice, this only works for NOR flash (or some convoluted RAM boot) - * and hence is not really useful for Artpec-3, so it's Etrax FS / NOR only. - * - */ - -#include <mach/startup.inc> - -#ifdef CONFIG_ETRAX_AXISFLASHMAP - -;; Code - - .text -start: - - ;; Start clocks for used blocks. - START_CLOCKS - - move.d CONFIG_ETRAX_PTABLE_SECTOR, $r10 - jump $r10 ; Jump to decompressor - nop - -#endif diff --git a/arch/cris/arch-v32/boot/rescue/rescue.lds b/arch/cris/arch-v32/boot/rescue/rescue.lds deleted file mode 100644 index 8ac646bc1a2..00000000000 --- a/arch/cris/arch-v32/boot/rescue/rescue.lds +++ /dev/null @@ -1,43 +0,0 @@ -/*#OUTPUT_FORMAT(elf32-us-cris) */ -OUTPUT_ARCH (crisv32) -/* Now that NAND support has been stripped, this file could be simplified, - * but it doesn't do any harm on the other hand so why bother. */ - -MEMORY - { - bootblk : ORIGIN = 0x38000000, - LENGTH = 0x00004000 - intmem : ORIGIN = 0x38004000, - LENGTH = 0x00005000 - } - -SECTIONS -{ - .text : - { - _stext = . ; - *(.text) - *(.init.text) - *(.rodata) - *(.rodata.*) - _etext = . ; - } > bootblk - .data : - { - *(.data) - _edata = . ; - } > bootblk - .bss : - { - _bss = . ; - *(.bss) - _end = ALIGN( 0x10 ) ; - } > intmem - - /* Get rid of stuff from EXPORT_SYMBOL(foo). */ - /DISCARD/ : - { - *(__ksymtab_strings) - *(__ksymtab) - } -} |