diff options
Diffstat (limited to 'arch/cris/arch-v10/boot/rescue')
| -rw-r--r-- | arch/cris/arch-v10/boot/rescue/Makefile | 45 | ||||
| -rw-r--r-- | arch/cris/arch-v10/boot/rescue/head.S | 33 |
2 files changed, 50 insertions, 28 deletions
diff --git a/arch/cris/arch-v10/boot/rescue/Makefile b/arch/cris/arch-v10/boot/rescue/Makefile index e9f2ba2ad02c..8be9b3130312 100644 --- a/arch/cris/arch-v10/boot/rescue/Makefile +++ b/arch/cris/arch-v10/boot/rescue/Makefile @@ -1,52 +1,53 @@ # # Makefile for rescue code # -ifndef TOPDIR -TOPDIR = ../../../.. -endif -CC = gcc-cris -mlinux -I $(TOPDIR)/include +target = $(target_rescue_dir) +src = $(src_rescue_dir) + +CC = gcc-cris -mlinux $(LINUXINCLUDE) CFLAGS = -O2 LD = gcc-cris -mlinux -nostdlib OBJCOPY = objcopy-cris OBJCOPYFLAGS = -O binary --remove-section=.bss -all: rescue.bin testrescue.bin kimagerescue.bin - -rescue: rescue.bin - # do nothing +all: $(target)/rescue.bin $(target)/testrescue.bin $(target)/kimagerescue.bin -rescue.bin: head.o - $(LD) -T rescue.ld -o rescue.o head.o - $(OBJCOPY) $(OBJCOPYFLAGS) rescue.o rescue.bin - cp rescue.bin $(TOPDIR) +$(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 +# Place a copy in top-level build directory + cp -p $(target)/rescue.bin $(objtree) -testrescue.bin: testrescue.o - $(OBJCOPY) $(OBJCOPYFLAGS) testrescue.o tr.bin +$(target)/testrescue.bin: $(target) $(target)/testrescue.o + $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/testrescue.o tr.bin # Pad it to 784 bytes dd if=/dev/zero of=tmp2423 bs=1 count=784 cat tr.bin tmp2423 >testrescue_tmp.bin - dd if=testrescue_tmp.bin of=testrescue.bin bs=1 count=784 + dd if=testrescue_tmp.bin of=$(target)/testrescue.bin bs=1 count=784 rm tr.bin tmp2423 testrescue_tmp.bin -kimagerescue.bin: kimagerescue.o - $(OBJCOPY) $(OBJCOPYFLAGS) kimagerescue.o ktr.bin +$(target)/kimagerescue.bin: $(target) $(target)/kimagerescue.o + $(OBJCOPY) $(OBJCOPYFLAGS) $(target)/kimagerescue.o ktr.bin # Pad it to 784 bytes, that's what the rescue loader expects dd if=/dev/zero of=tmp2423 bs=1 count=784 cat ktr.bin tmp2423 >kimagerescue_tmp.bin - dd if=kimagerescue_tmp.bin of=kimagerescue.bin bs=1 count=784 + dd if=kimagerescue_tmp.bin of=$(target)/kimagerescue.bin bs=1 count=784 rm ktr.bin tmp2423 kimagerescue_tmp.bin -head.o: head.S +$(target): + mkdir -p $(target) + +$(target)/head.o: $(src)/head.S $(CC) -D__ASSEMBLY__ -traditional -c $< -o $*.o -testrescue.o: testrescue.S +$(target)/testrescue.o: $(src)/testrescue.S $(CC) -D__ASSEMBLY__ -traditional -c $< -o $*.o -kimagerescue.o: kimagerescue.S +$(target)/kimagerescue.o: $(src)/kimagerescue.S $(CC) -D__ASSEMBLY__ -traditional -c $< -o $*.o clean: - rm -f *.o *.bin + rm -f $(target)/*.o $(target)/*.bin fastdep: diff --git a/arch/cris/arch-v10/boot/rescue/head.S b/arch/cris/arch-v10/boot/rescue/head.S index 8689ea972c46..addb2194de0f 100644 --- a/arch/cris/arch-v10/boot/rescue/head.S +++ b/arch/cris/arch-v10/boot/rescue/head.S @@ -1,4 +1,4 @@ -/* $Id: head.S,v 1.6 2003/04/09 08:12:43 pkj Exp $ +/* $Id: head.S,v 1.7 2005/03/07 12:11:06 starvik Exp $ * * Rescue code, made to reside at the beginning of the * flash-memory. when it starts, it checks a partition @@ -121,12 +121,13 @@ ;; 0x80000000 if loaded in flash (as it should be) ;; since etrax actually starts at address 2 when booting from flash, we ;; put a nop (2 bytes) here first so we dont accidentally skip the di - + nop di jump in_cache ; enter cached area instead -in_cache: +in_cache: + ;; first put a jump test to give a possibility of upgrading the rescue code ;; without erasing/reflashing the sector. we put a longword of -1 here and if @@ -325,9 +326,29 @@ flash_ok: ;; result will be in r0 checksum: moveq 0, $r0 -1: addu.b [$r1+], $r0 - subq 1, $r2 - bne 1b + moveq CONFIG_ETRAX_FLASH1_SIZE, $r6 + + ;; If the first physical flash memory is exceeded wrap to the second one. + btstq 26, $r1 ; Are we addressing first flash? + bpl 1f + nop + clear.d $r6 + +1: test.d $r6 ; 0 = no wrapping + beq 2f + nop + lslq 20, $r6 ; Convert MB to bytes + sub.d $r1, $r6 + +2: addu.b [$r1+], $r0 + subq 1, $r6 ; Flash memory left + beq 3f + subq 1, $r2 ; Length left + bne 2b nop ret nop + +3: move.d MEM_CSE1_START, $r1 ; wrap to second flash + ba 2b + nop |
