diff options
Diffstat (limited to 'arch/cris/arch-v32/boot/rescue')
| -rw-r--r-- | arch/cris/arch-v32/boot/rescue/Makefile | 41 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/rescue/head.S | 42 | ||||
| -rw-r--r-- | arch/cris/arch-v32/boot/rescue/rescue.ld | 37 |
3 files changed, 61 insertions, 59 deletions
diff --git a/arch/cris/arch-v32/boot/rescue/Makefile b/arch/cris/arch-v32/boot/rescue/Makefile index f668a819872..c0987795dcb 100644 --- a/arch/cris/arch-v32/boot/rescue/Makefile +++ b/arch/cris/arch-v32/boot/rescue/Makefile @@ -1,36 +1,27 @@ # -# Makefile for rescue code +# Makefile for rescue (bootstrap) code # -target = $(target_rescue_dir) -src = $(src_rescue_dir) CC = gcc-cris -mlinux -march=v32 $(LINUXINCLUDE) -CFLAGS = -O2 +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 $(obj)/rescue.ld +LDPOSTFLAGS = -lgcc OBJCOPY = objcopy-cris OBJCOPYFLAGS = -O binary --remove-section=.bss +obj-$(CONFIG_ETRAX_AXISFLASHMAP) = head.o +OBJECT := $(obj)/head.o -all: $(target)/rescue.bin +targets := rescue.o rescue.bin -rescue: rescue.bin - # do nothing +quiet_cmd_ldlibgcc = LD $@ +cmd_ldlibgcc = $(LD) $(LDFLAGS) $(filter-out FORCE,$^) $(LDPOSTFLAGS) -o $@ -$(target)/rescue.bin: $(target) $(target)/head.o - $(LD) -T $(src)/rescue.ld -o $(target)/rescue.o $(target)/head.o - $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/rescue.o $(target)/rescue.bin - cp -p $(target)/rescue.bin $(objtree) +$(obj)/rescue.o: $(OBJECTS) FORCE + $(call if_changed,ldlibgcc) -$(target): - mkdir -p $(target) - -$(target)/head.o: $(src)/head.S - $(CC) -D__ASSEMBLY__ -c $< -o $*.o - -clean: - rm -f $(target)/*.o $(target)/*.bin - -fastdep: - -modules: - -modules-install: +$(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 index 8cdb4011bc1..5f846b7700a 100644 --- a/arch/cris/arch-v32/boot/rescue/head.S +++ b/arch/cris/arch-v32/boot/rescue/head.S @@ -1,38 +1,26 @@ -/* $Id: head.S,v 1.4 2004/11/01 16:10:28 starvik Exp $ +/* + * 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. * - * This used to be the rescue code but now that is handled by the - * RedBoot based RFL instead. Nothing to see here, move along. */ -#include <asm/arch/hwregs/reg_map_asm.h> -#include <asm/arch/hwregs/config_defs_asm.h> +#include <mach/startup.inc> - .text +#ifdef CONFIG_ETRAX_AXISFLASHMAP - ;; Start clocks for used blocks. - move.d REG_ADDR(config, regi_config, rw_clk_ctrl), $r1 - move.d [$r1], $r0 - or.d REG_STATE(config, rw_clk_ctrl, cpu, yes) | \ - REG_STATE(config, rw_clk_ctrl, bif, yes) | \ - REG_STATE(config, rw_clk_ctrl, fix_io, yes), $r0 - move.d $r0, [$r1] +;; Code - ;; Copy 68KB NAND flash to Internal RAM (if NAND boot) - move.d 0x38004000, $r10 - move.d 0x8000, $r11 - move.d 0x11000, $r12 - move.d copy_complete, $r13 - and.d 0x000fffff, $r13 - or.d 0x38000000, $r13 + .text +start: -#include "../../lib/nand_init.S" + ;; Start clocks for used blocks. + START_CLOCKS - ;; No NAND found move.d CONFIG_ETRAX_PTABLE_SECTOR, $r10 - jump $r10 ; Jump to decompresser + jump $r10 ; Jump to decompressor nop -copy_complete: - move.d 0x38000000 + CONFIG_ETRAX_PTABLE_SECTOR, $r10 - jump $r10 ; Jump to decompresser - nop +#endif diff --git a/arch/cris/arch-v32/boot/rescue/rescue.ld b/arch/cris/arch-v32/boot/rescue/rescue.ld index 42b11aa122b..8ac646bc1a2 100644 --- a/arch/cris/arch-v32/boot/rescue/rescue.ld +++ b/arch/cris/arch-v32/boot/rescue/rescue.ld @@ -1,20 +1,43 @@ +/*#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 { - flash : ORIGIN = 0x00000000, - LENGTH = 0x00100000 + bootblk : ORIGIN = 0x38000000, + LENGTH = 0x00004000 + intmem : ORIGIN = 0x38004000, + LENGTH = 0x00005000 } SECTIONS { .text : { - stext = . ; + _stext = . ; *(.text) - etext = . ; - } > flash + *(.init.text) + *(.rodata) + *(.rodata.*) + _etext = . ; + } > bootblk .data : { *(.data) - edata = . ; - } > flash + _edata = . ; + } > bootblk + .bss : + { + _bss = . ; + *(.bss) + _end = ALIGN( 0x10 ) ; + } > intmem + + /* Get rid of stuff from EXPORT_SYMBOL(foo). */ + /DISCARD/ : + { + *(__ksymtab_strings) + *(__ksymtab) + } } |