mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-05 05:46:15 +02:00
17c7b6c3fd
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8653 3c298f89-4303-0410-b956-a3cf2f4a3e73
1974 lines
57 KiB
Diff
1974 lines
57 KiB
Diff
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/Makefile linux-2.6.19.2/arch/cris/arch-v10/boot/Makefile
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--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/Makefile 2007-05-28 16:28:34.000000000 +0200
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+++ linux-2.6.19.2/arch/cris/arch-v10/boot/Makefile 2007-05-28 17:24:26.000000000 +0200
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@@ -5,7 +5,7 @@
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OBJCOPY = /usr/local/cris/objcopy-cris
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OBJCOPYFLAGS = -O binary --remove-section=.bss
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-subdir- := compressed rescue
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+subdir- := compressed
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targets := Image
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$(obj)/Image: vmlinux FORCE
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@@ -14,8 +14,12 @@
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$(obj)/compressed/vmlinux: $(obj)/Image FORCE
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$(Q)$(MAKE) $(build)=$(obj)/compressed $@
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- $(Q)$(MAKE) $(build)=$(obj)/rescue $(obj)/rescue/rescue.bin
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$(obj)/zImage: $(obj)/compressed/vmlinux
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@cp $< $@
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+ @cp $(obj)/compressed/vmlinux $(obj)/zImage_custom
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+ @cp $(obj)/compressed/vmlinux_MCM $(obj)/zImage_MCM
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+ @cp $(obj)/compressed/vmlinux_416 $(obj)/zImage_416
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+ @cp $(obj)/compressed/vmlinux_816 $(obj)/zImage_816
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+ @cp $(obj)/compressed/vmlinux_832 $(obj)/zImage_832
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@echo ' Kernel: $@ is ready'
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diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/Makefile linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/Makefile
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--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/Makefile 2007-05-28 16:28:34.000000000 +0200
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+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/Makefile 2007-05-28 17:03:02.000000000 +0200
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@@ -17,18 +17,34 @@
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$(obj)/decompress.o: $(OBJECTS) FORCE
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$(call if_changed,ld)
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+ $(LD) $(LDFLAGS) arch/cris/boot/compressed/head_MCM.o arch/cris/boot/compressed/misc.o -o arch/cris/boot/compressed/decompress_MCM.o
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+ $(LD) $(LDFLAGS) arch/cris/boot/compressed/head_416.o arch/cris/boot/compressed/misc.o -o arch/cris/boot/compressed/decompress_416.o
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+ $(LD) $(LDFLAGS) arch/cris/boot/compressed/head_816.o arch/cris/boot/compressed/misc.o -o arch/cris/boot/compressed/decompress_816.o
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+ $(LD) $(LDFLAGS) arch/cris/boot/compressed/head_832.o arch/cris/boot/compressed/misc.o -o arch/cris/boot/compressed/decompress_832.o
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$(obj)/decompress.bin: $(obj)/decompress.o FORCE
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$(call if_changed,objcopy)
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+ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/decompress_MCM.o $(obj)/decompress_MCM.bin
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+ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/decompress_416.o $(obj)/decompress_416.bin
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+ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/decompress_816.o $(obj)/decompress_816.bin
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+ $(OBJCOPY) $(OBJCOPYFLAGS) $(obj)/decompress_832.o $(obj)/decompress_832.bin
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+
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+$(obj)/head.o: $(obj)/head.S .config FORCE
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+ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c $< -o $@
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+ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c arch/cris/boot/compressed/head_MCM.S -o arch/cris/boot/compressed/head_MCM.o
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+ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c arch/cris/boot/compressed/head_416.S -o arch/cris/boot/compressed/head_416.o
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+ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c arch/cris/boot/compressed/head_816.S -o arch/cris/boot/compressed/head_816.o
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+ /usr/local/cris/gcc-cris -melf -Iinclude -include include/linux/autoconf.h -D__ASSEMBLY__ -traditional -c arch/cris/boot/compressed/head_832.S -o arch/cris/boot/compressed/head_832.o
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-$(obj)/head.o: $(obj)/head.S .config
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- /usr/local/cris/gcc-cris -melf $(LINUXINCLUDE) -D__ASSEMBLY__ -traditional -c $< -o $@
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-
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-$(obj)/misc.o: $(obj)/misc.c .config
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+$(obj)/misc.o: $(obj)/misc.c .config FORCE
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/usr/local/cris/gcc-cris -melf $(LINUXINCLUDE) -D__KERNEL__ -c $< -o $@
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$(obj)/vmlinux: $(obj)/piggy.gz $(obj)/decompress.bin FORCE
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$(call if_changed,image)
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+ cat $(obj)/decompress_MCM.bin $(obj)/piggy.gz > $(obj)/vmlinux_MCM
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+ cat $(obj)/decompress_416.bin $(obj)/piggy.gz > $(obj)/vmlinux_416
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+ cat $(obj)/decompress_816.bin $(obj)/piggy.gz > $(obj)/vmlinux_816
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+ cat $(obj)/decompress_832.bin $(obj)/piggy.gz > $(obj)/vmlinux_832
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$(obj)/piggy.gz: $(obj)/../Image FORCE
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$(call if_changed,gzip)
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diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init.S
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--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init.S 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init.S 2007-05-28 16:42:15.000000000 +0200
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@@ -0,0 +1,207 @@
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+/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
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+ *
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+ * DRAM/SDRAM initialization - alter with care
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+ * This file is intended to be included from other assembler files
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+ *
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+ * Note: This file may not modify r9 because r9 is used to carry
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+ * information from the decompresser to the kernel
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+ *
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+ * Copyright (C) 2000, 2001 Axis Communications AB
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+ *
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+ * Authors: Mikael Starvik (starvik@axis.com)
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+ *
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+ * $Log: dram_init.S,v $
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+ * Revision 1.5 2006/10/13 12:43:11 starvik
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+ * Merge of 2.6.18
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+ *
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+ * Revision 1.4 2003/09/22 09:21:59 starvik
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+ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
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+ * so we need to mask off 12 bits.
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+ *
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+ * Revision 1.3 2003/03/31 09:38:37 starvik
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+ * Corrected calculation of end of sdram init commands
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+ *
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+ * Revision 1.2 2002/11/19 13:33:29 starvik
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+ * Changes from Linux 2.4
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+ *
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+ * Revision 1.13 2002/10/30 07:42:28 starvik
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+ * Always read SDRAM command sequence from flash
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+ *
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+ * Revision 1.12 2002/08/09 11:37:37 orjanf
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+ * Added double initialization work-around for Samsung SDRAMs.
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+ *
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+ * Revision 1.11 2002/06/04 11:43:21 starvik
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+ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
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+ *
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+ * Revision 1.10 2001/10/04 12:00:21 martinnn
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+ * Added missing underscores.
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+ *
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+ * Revision 1.9 2001/10/01 14:47:35 bjornw
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+ * Added register prefixes and removed underscores
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+ *
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+ * Revision 1.8 2001/05/15 07:12:45 hp
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+ * Copy warning from head.S about r8 and r9
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+ *
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+ * Revision 1.7 2001/04/18 12:05:39 bjornw
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+ * Fixed comments, and explicitely include config.h to be sure its there
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+ *
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+ * Revision 1.6 2001/04/10 06:20:16 starvik
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+ * Delay should be 200us, not 200ns
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+ *
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+ * Revision 1.5 2001/04/09 06:01:13 starvik
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+ * Added support for 100 MHz SDRAMs
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+ *
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+ * Revision 1.4 2001/03/26 14:24:01 bjornw
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+ * Namechange of some config options
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+ *
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+ * Revision 1.3 2001/03/23 08:29:41 starvik
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+ * Corrected calculation of mrs_data
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+ *
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+ * Revision 1.2 2001/02/08 15:20:00 starvik
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+ * Corrected SDRAM initialization
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+ * Should now be included as inline
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+ *
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+ * Revision 1.1 2001/01/29 13:08:02 starvik
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+ * Initial version
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+ * This file should be included from all assembler files that needs to
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+ * initialize DRAM/SDRAM.
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+ *
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+ */
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+
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+/* Just to be certain the config file is included, we include it here
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+ * explicitely instead of depending on it being included in the file that
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+ * uses this code.
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+ */
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+
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+
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+ ;; WARNING! The registers r8 and r9 are used as parameters carrying
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+ ;; information from the decompressor (if the kernel was compressed).
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+ ;; They should not be used in the code below.
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+
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+#ifndef CONFIG_SVINTO_SIM
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+ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
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+ move.d $r0, [R_WAITSTATES]
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+
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+ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
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+ move.d $r0, [R_BUS_CONFIG]
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+
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+#ifndef CONFIG_ETRAX_SDRAM
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+ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
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+ move.d $r0, [R_DRAM_CONFIG]
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+
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+ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
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+ move.d $r0, [R_DRAM_TIMING]
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+#else
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+ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
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+ moveq 2, $r6
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+_sdram_init:
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+
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+ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
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+
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+ ; Bank configuration
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+ move.d CONFIG_ETRAX_DEF_R_SDRAM_CONFIG, $r0
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+ move.d $r0, [R_SDRAM_CONFIG]
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+
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+ ; Calculate value of mrs_data
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+ ; CAS latency = 2 && bus_width = 32 => 0x40
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+ ; CAS latency = 3 && bus_width = 32 => 0x60
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+ ; CAS latency = 2 && bus_width = 16 => 0x20
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+ ; CAS latency = 3 && bus_width = 16 => 0x30
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+
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+ ; Check if value is already supplied in kernel config
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+ move.d CONFIG_ETRAX_DEF_R_SDRAM_TIMING, $r2
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+ and.d 0x00ff0000, $r2
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+ bne _set_timing
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+ lsrq 16, $r2
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+
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+ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
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+ move.d CONFIG_ETRAX_DEF_R_SDRAM_TIMING, $r1
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+ move.d $r1, $r3
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+ and.d 0x03, $r1 ; Get CAS latency
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+ and.d 0x1000, $r3 ; 50 or 100 MHz?
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+ beq _speed_50
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+ nop
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+_speed_100:
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+ cmp.d 0x00, $r1 ; CAS latency = 2?
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+ beq _bw_check
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+ nop
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+ or.d 0x20, $r2 ; CAS latency = 3
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+ ba _bw_check
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+ nop
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+_speed_50:
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+ cmp.d 0x01, $r1 ; CAS latency = 2?
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+ beq _bw_check
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+ nop
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+ or.d 0x20, $r2 ; CAS latency = 3
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+_bw_check:
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+ move.d CONFIG_ETRAX_DEF_R_SDRAM_CONFIG, $r1
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+ and.d 0x800000, $r1 ; DRAM width is bit 23
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+ bne _set_timing
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+ nop
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+ lsrq 1, $r2 ; 16 bits. Shift down value.
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+
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+ ; Set timing parameters. Starts master clock
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+_set_timing:
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+ move.d CONFIG_ETRAX_DEF_R_SDRAM_TIMING, $r1
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+ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
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+ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
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+ move.d $r1, $r5
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+ or.d 0x0000c000, $r1 ; ref = disable
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+ lslq 16, $r2 ; mrs data starts at bit 16
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+ or.d $r2, $r1
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+ move.d $r1, [R_SDRAM_TIMING]
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+
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+ ; Wait 200us
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+ move.d 10000, $r2
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+1: bne 1b
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+ subq 1, $r2
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+
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+ ; Issue initialization command sequence
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+ move.d _sdram_commands_start, $r2
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+ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
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+ move.d _sdram_commands_end, $r3
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+ and.d 0x000fffff, $r3
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+1: clear.d $r4
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+ move.b [$r2+], $r4
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+ lslq 9, $r4 ; Command starts at bit 9
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+ or.d $r1, $r4
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+ move.d $r4, [R_SDRAM_TIMING]
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+ nop ; Wait five nop cycles between each command
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+ nop
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+ nop
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+ nop
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+ nop
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+ cmp.d $r2, $r3
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+ bne 1b
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+ nop
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+ move.d $r5, [R_SDRAM_TIMING]
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+ subq 1, $r6
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+ bne _sdram_init
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+ nop
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+ ba _sdram_commands_end
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+ nop
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+
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+_sdram_commands_start:
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+ .byte 3 ; Precharge
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+ .byte 0 ; nop
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+ .byte 2 ; refresh
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+ .byte 0 ; nop
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+ .byte 2 ; refresh
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+ .byte 0 ; nop
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+ .byte 2 ; refresh
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+ .byte 0 ; nop
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+ .byte 2 ; refresh
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+ .byte 0 ; nop
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+ .byte 2 ; refresh
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+ .byte 0 ; nop
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+ .byte 2 ; refresh
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+ .byte 0 ; nop
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+ .byte 2 ; refresh
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+ .byte 0 ; nop
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+ .byte 2 ; refresh
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+ .byte 0 ; nop
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+ .byte 1 ; mrs
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+ .byte 0 ; nop
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+_sdram_commands_end:
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+#endif
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+#endif
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diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_416.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_416.S
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--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_416.S 1970-01-01 01:00:00.000000000 +0100
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+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_416.S 2007-05-28 20:02:25.000000000 +0200
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@@ -0,0 +1,207 @@
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+/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
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+ *
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+ * DRAM/SDRAM initialization - alter with care
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+ * This file is intended to be included from other assembler files
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+ *
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+ * Note: This file may not modify r9 because r9 is used to carry
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+ * information from the decompresser to the kernel
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+ *
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+ * Copyright (C) 2000, 2001 Axis Communications AB
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+ *
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+ * Authors: Mikael Starvik (starvik@axis.com)
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+ *
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+ * $Log: dram_init.S,v $
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+ * Revision 1.5 2006/10/13 12:43:11 starvik
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+ * Merge of 2.6.18
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+ *
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+ * Revision 1.4 2003/09/22 09:21:59 starvik
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+ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
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+ * so we need to mask off 12 bits.
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+ *
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+ * Revision 1.3 2003/03/31 09:38:37 starvik
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+ * Corrected calculation of end of sdram init commands
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+ *
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+ * Revision 1.2 2002/11/19 13:33:29 starvik
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+ * Changes from Linux 2.4
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+ *
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+ * Revision 1.13 2002/10/30 07:42:28 starvik
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+ * Always read SDRAM command sequence from flash
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+ *
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+ * Revision 1.12 2002/08/09 11:37:37 orjanf
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+ * Added double initialization work-around for Samsung SDRAMs.
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+ *
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+ * Revision 1.11 2002/06/04 11:43:21 starvik
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+ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
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+ *
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+ * Revision 1.10 2001/10/04 12:00:21 martinnn
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+ * Added missing underscores.
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+ *
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+ * Revision 1.9 2001/10/01 14:47:35 bjornw
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+ * Added register prefixes and removed underscores
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+ *
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+ * Revision 1.8 2001/05/15 07:12:45 hp
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+ * Copy warning from head.S about r8 and r9
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+ *
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+ * Revision 1.7 2001/04/18 12:05:39 bjornw
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+ * Fixed comments, and explicitely include config.h to be sure its there
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+ *
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+ * Revision 1.6 2001/04/10 06:20:16 starvik
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+ * Delay should be 200us, not 200ns
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+ *
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+ * Revision 1.5 2001/04/09 06:01:13 starvik
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+ * Added support for 100 MHz SDRAMs
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+ *
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+ * Revision 1.4 2001/03/26 14:24:01 bjornw
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|
+ * Namechange of some config options
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|
+ *
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+ * Revision 1.3 2001/03/23 08:29:41 starvik
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+ * Corrected calculation of mrs_data
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+ *
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+ * Revision 1.2 2001/02/08 15:20:00 starvik
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+ * Corrected SDRAM initialization
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+ * Should now be included as inline
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+ *
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+ * Revision 1.1 2001/01/29 13:08:02 starvik
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+ * Initial version
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+ * This file should be included from all assembler files that needs to
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+ * initialize DRAM/SDRAM.
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+ *
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+ */
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+
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+/* Just to be certain the config file is included, we include it here
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+ * explicitely instead of depending on it being included in the file that
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+ * uses this code.
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+ */
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+
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+
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+ ;; WARNING! The registers r8 and r9 are used as parameters carrying
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|
+ ;; information from the decompressor (if the kernel was compressed).
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|
+ ;; They should not be used in the code below.
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+
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+#ifndef CONFIG_SVINTO_SIM
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+ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
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+ move.d $r0, [R_WAITSTATES]
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+
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+ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
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+ move.d $r0, [R_BUS_CONFIG]
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+
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+#ifndef CONFIG_ETRAX_SDRAM
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+ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
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+ move.d $r0, [R_DRAM_CONFIG]
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+
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+ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
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+ move.d $r0, [R_DRAM_TIMING]
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+#else
|
|
+ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
|
|
+ moveq 2, $r6
|
|
+_sdram_init:
|
|
+
|
|
+ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
|
|
+
|
|
+ ; Bank configuration
|
|
+ move.d 0x09603636, $r0
|
|
+ move.d $r0, [R_SDRAM_CONFIG]
|
|
+
|
|
+ ; Calculate value of mrs_data
|
|
+ ; CAS latency = 2 && bus_width = 32 => 0x40
|
|
+ ; CAS latency = 3 && bus_width = 32 => 0x60
|
|
+ ; CAS latency = 2 && bus_width = 16 => 0x20
|
|
+ ; CAS latency = 3 && bus_width = 16 => 0x30
|
|
+
|
|
+ ; Check if value is already supplied in kernel config
|
|
+ move.d 0x80008002, $r2
|
|
+ and.d 0x00ff0000, $r2
|
|
+ bne _set_timing
|
|
+ lsrq 16, $r2
|
|
+
|
|
+ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
|
|
+ move.d 0x80008002, $r1
|
|
+ move.d $r1, $r3
|
|
+ and.d 0x03, $r1 ; Get CAS latency
|
|
+ and.d 0x1000, $r3 ; 50 or 100 MHz?
|
|
+ beq _speed_50
|
|
+ nop
|
|
+_speed_100:
|
|
+ cmp.d 0x00, $r1 ; CAS latency = 2?
|
|
+ beq _bw_check
|
|
+ nop
|
|
+ or.d 0x20, $r2 ; CAS latency = 3
|
|
+ ba _bw_check
|
|
+ nop
|
|
+_speed_50:
|
|
+ cmp.d 0x01, $r1 ; CAS latency = 2?
|
|
+ beq _bw_check
|
|
+ nop
|
|
+ or.d 0x20, $r2 ; CAS latency = 3
|
|
+_bw_check:
|
|
+ move.d 0x09603636, $r1
|
|
+ and.d 0x800000, $r1 ; DRAM width is bit 23
|
|
+ bne _set_timing
|
|
+ nop
|
|
+ lsrq 1, $r2 ; 16 bits. Shift down value.
|
|
+
|
|
+ ; Set timing parameters. Starts master clock
|
|
+_set_timing:
|
|
+ move.d 0x80008002, $r1
|
|
+ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
|
|
+ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
|
|
+ move.d $r1, $r5
|
|
+ or.d 0x0000c000, $r1 ; ref = disable
|
|
+ lslq 16, $r2 ; mrs data starts at bit 16
|
|
+ or.d $r2, $r1
|
|
+ move.d $r1, [R_SDRAM_TIMING]
|
|
+
|
|
+ ; Wait 200us
|
|
+ move.d 10000, $r2
|
|
+1: bne 1b
|
|
+ subq 1, $r2
|
|
+
|
|
+ ; Issue initialization command sequence
|
|
+ move.d _sdram_commands_start, $r2
|
|
+ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
|
|
+ move.d _sdram_commands_end, $r3
|
|
+ and.d 0x000fffff, $r3
|
|
+1: clear.d $r4
|
|
+ move.b [$r2+], $r4
|
|
+ lslq 9, $r4 ; Command starts at bit 9
|
|
+ or.d $r1, $r4
|
|
+ move.d $r4, [R_SDRAM_TIMING]
|
|
+ nop ; Wait five nop cycles between each command
|
|
+ nop
|
|
+ nop
|
|
+ nop
|
|
+ nop
|
|
+ cmp.d $r2, $r3
|
|
+ bne 1b
|
|
+ nop
|
|
+ move.d $r5, [R_SDRAM_TIMING]
|
|
+ subq 1, $r6
|
|
+ bne _sdram_init
|
|
+ nop
|
|
+ ba _sdram_commands_end
|
|
+ nop
|
|
+
|
|
+_sdram_commands_start:
|
|
+ .byte 3 ; Precharge
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 1 ; mrs
|
|
+ .byte 0 ; nop
|
|
+_sdram_commands_end:
|
|
+#endif
|
|
+#endif
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_816.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_816.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_816.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_816.S 2007-05-28 20:04:05.000000000 +0200
|
|
@@ -0,0 +1,207 @@
|
|
+/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
|
|
+ *
|
|
+ * DRAM/SDRAM initialization - alter with care
|
|
+ * This file is intended to be included from other assembler files
|
|
+ *
|
|
+ * Note: This file may not modify r9 because r9 is used to carry
|
|
+ * information from the decompresser to the kernel
|
|
+ *
|
|
+ * Copyright (C) 2000, 2001 Axis Communications AB
|
|
+ *
|
|
+ * Authors: Mikael Starvik (starvik@axis.com)
|
|
+ *
|
|
+ * $Log: dram_init.S,v $
|
|
+ * Revision 1.5 2006/10/13 12:43:11 starvik
|
|
+ * Merge of 2.6.18
|
|
+ *
|
|
+ * Revision 1.4 2003/09/22 09:21:59 starvik
|
|
+ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
|
|
+ * so we need to mask off 12 bits.
|
|
+ *
|
|
+ * Revision 1.3 2003/03/31 09:38:37 starvik
|
|
+ * Corrected calculation of end of sdram init commands
|
|
+ *
|
|
+ * Revision 1.2 2002/11/19 13:33:29 starvik
|
|
+ * Changes from Linux 2.4
|
|
+ *
|
|
+ * Revision 1.13 2002/10/30 07:42:28 starvik
|
|
+ * Always read SDRAM command sequence from flash
|
|
+ *
|
|
+ * Revision 1.12 2002/08/09 11:37:37 orjanf
|
|
+ * Added double initialization work-around for Samsung SDRAMs.
|
|
+ *
|
|
+ * Revision 1.11 2002/06/04 11:43:21 starvik
|
|
+ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
|
|
+ *
|
|
+ * Revision 1.10 2001/10/04 12:00:21 martinnn
|
|
+ * Added missing underscores.
|
|
+ *
|
|
+ * Revision 1.9 2001/10/01 14:47:35 bjornw
|
|
+ * Added register prefixes and removed underscores
|
|
+ *
|
|
+ * Revision 1.8 2001/05/15 07:12:45 hp
|
|
+ * Copy warning from head.S about r8 and r9
|
|
+ *
|
|
+ * Revision 1.7 2001/04/18 12:05:39 bjornw
|
|
+ * Fixed comments, and explicitely include config.h to be sure its there
|
|
+ *
|
|
+ * Revision 1.6 2001/04/10 06:20:16 starvik
|
|
+ * Delay should be 200us, not 200ns
|
|
+ *
|
|
+ * Revision 1.5 2001/04/09 06:01:13 starvik
|
|
+ * Added support for 100 MHz SDRAMs
|
|
+ *
|
|
+ * Revision 1.4 2001/03/26 14:24:01 bjornw
|
|
+ * Namechange of some config options
|
|
+ *
|
|
+ * Revision 1.3 2001/03/23 08:29:41 starvik
|
|
+ * Corrected calculation of mrs_data
|
|
+ *
|
|
+ * Revision 1.2 2001/02/08 15:20:00 starvik
|
|
+ * Corrected SDRAM initialization
|
|
+ * Should now be included as inline
|
|
+ *
|
|
+ * Revision 1.1 2001/01/29 13:08:02 starvik
|
|
+ * Initial version
|
|
+ * This file should be included from all assembler files that needs to
|
|
+ * initialize DRAM/SDRAM.
|
|
+ *
|
|
+ */
|
|
+
|
|
+/* Just to be certain the config file is included, we include it here
|
|
+ * explicitely instead of depending on it being included in the file that
|
|
+ * uses this code.
|
|
+ */
|
|
+
|
|
+
|
|
+ ;; WARNING! The registers r8 and r9 are used as parameters carrying
|
|
+ ;; information from the decompressor (if the kernel was compressed).
|
|
+ ;; They should not be used in the code below.
|
|
+
|
|
+#ifndef CONFIG_SVINTO_SIM
|
|
+ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
|
|
+ move.d $r0, [R_WAITSTATES]
|
|
+
|
|
+ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
|
|
+ move.d $r0, [R_BUS_CONFIG]
|
|
+
|
|
+#ifndef CONFIG_ETRAX_SDRAM
|
|
+ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
|
|
+ move.d $r0, [R_DRAM_CONFIG]
|
|
+
|
|
+ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
|
|
+ move.d $r0, [R_DRAM_TIMING]
|
|
+#else
|
|
+ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
|
|
+ moveq 2, $r6
|
|
+_sdram_init:
|
|
+
|
|
+ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
|
|
+
|
|
+ ; Bank configuration
|
|
+ move.d 0x09603636, $r0
|
|
+ move.d $r0, [R_SDRAM_CONFIG]
|
|
+
|
|
+ ; Calculate value of mrs_data
|
|
+ ; CAS latency = 2 && bus_width = 32 => 0x40
|
|
+ ; CAS latency = 3 && bus_width = 32 => 0x60
|
|
+ ; CAS latency = 2 && bus_width = 16 => 0x20
|
|
+ ; CAS latency = 3 && bus_width = 16 => 0x30
|
|
+
|
|
+ ; Check if value is already supplied in kernel config
|
|
+ move.d 0x80008002, $r2
|
|
+ and.d 0x00ff0000, $r2
|
|
+ bne _set_timing
|
|
+ lsrq 16, $r2
|
|
+
|
|
+ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
|
|
+ move.d 0x80008002, $r1
|
|
+ move.d $r1, $r3
|
|
+ and.d 0x03, $r1 ; Get CAS latency
|
|
+ and.d 0x1000, $r3 ; 50 or 100 MHz?
|
|
+ beq _speed_50
|
|
+ nop
|
|
+_speed_100:
|
|
+ cmp.d 0x00, $r1 ; CAS latency = 2?
|
|
+ beq _bw_check
|
|
+ nop
|
|
+ or.d 0x20, $r2 ; CAS latency = 3
|
|
+ ba _bw_check
|
|
+ nop
|
|
+_speed_50:
|
|
+ cmp.d 0x01, $r1 ; CAS latency = 2?
|
|
+ beq _bw_check
|
|
+ nop
|
|
+ or.d 0x20, $r2 ; CAS latency = 3
|
|
+_bw_check:
|
|
+ move.d 0x09603636, $r1
|
|
+ and.d 0x800000, $r1 ; DRAM width is bit 23
|
|
+ bne _set_timing
|
|
+ nop
|
|
+ lsrq 1, $r2 ; 16 bits. Shift down value.
|
|
+
|
|
+ ; Set timing parameters. Starts master clock
|
|
+_set_timing:
|
|
+ move.d 0x80008002, $r1
|
|
+ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
|
|
+ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
|
|
+ move.d $r1, $r5
|
|
+ or.d 0x0000c000, $r1 ; ref = disable
|
|
+ lslq 16, $r2 ; mrs data starts at bit 16
|
|
+ or.d $r2, $r1
|
|
+ move.d $r1, [R_SDRAM_TIMING]
|
|
+
|
|
+ ; Wait 200us
|
|
+ move.d 10000, $r2
|
|
+1: bne 1b
|
|
+ subq 1, $r2
|
|
+
|
|
+ ; Issue initialization command sequence
|
|
+ move.d _sdram_commands_start, $r2
|
|
+ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
|
|
+ move.d _sdram_commands_end, $r3
|
|
+ and.d 0x000fffff, $r3
|
|
+1: clear.d $r4
|
|
+ move.b [$r2+], $r4
|
|
+ lslq 9, $r4 ; Command starts at bit 9
|
|
+ or.d $r1, $r4
|
|
+ move.d $r4, [R_SDRAM_TIMING]
|
|
+ nop ; Wait five nop cycles between each command
|
|
+ nop
|
|
+ nop
|
|
+ nop
|
|
+ nop
|
|
+ cmp.d $r2, $r3
|
|
+ bne 1b
|
|
+ nop
|
|
+ move.d $r5, [R_SDRAM_TIMING]
|
|
+ subq 1, $r6
|
|
+ bne _sdram_init
|
|
+ nop
|
|
+ ba _sdram_commands_end
|
|
+ nop
|
|
+
|
|
+_sdram_commands_start:
|
|
+ .byte 3 ; Precharge
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 1 ; mrs
|
|
+ .byte 0 ; nop
|
|
+_sdram_commands_end:
|
|
+#endif
|
|
+#endif
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_832.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_832.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_832.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_832.S 2007-05-28 20:04:57.000000000 +0200
|
|
@@ -0,0 +1,207 @@
|
|
+/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
|
|
+ *
|
|
+ * DRAM/SDRAM initialization - alter with care
|
|
+ * This file is intended to be included from other assembler files
|
|
+ *
|
|
+ * Note: This file may not modify r9 because r9 is used to carry
|
|
+ * information from the decompresser to the kernel
|
|
+ *
|
|
+ * Copyright (C) 2000, 2001 Axis Communications AB
|
|
+ *
|
|
+ * Authors: Mikael Starvik (starvik@axis.com)
|
|
+ *
|
|
+ * $Log: dram_init.S,v $
|
|
+ * Revision 1.5 2006/10/13 12:43:11 starvik
|
|
+ * Merge of 2.6.18
|
|
+ *
|
|
+ * Revision 1.4 2003/09/22 09:21:59 starvik
|
|
+ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
|
|
+ * so we need to mask off 12 bits.
|
|
+ *
|
|
+ * Revision 1.3 2003/03/31 09:38:37 starvik
|
|
+ * Corrected calculation of end of sdram init commands
|
|
+ *
|
|
+ * Revision 1.2 2002/11/19 13:33:29 starvik
|
|
+ * Changes from Linux 2.4
|
|
+ *
|
|
+ * Revision 1.13 2002/10/30 07:42:28 starvik
|
|
+ * Always read SDRAM command sequence from flash
|
|
+ *
|
|
+ * Revision 1.12 2002/08/09 11:37:37 orjanf
|
|
+ * Added double initialization work-around for Samsung SDRAMs.
|
|
+ *
|
|
+ * Revision 1.11 2002/06/04 11:43:21 starvik
|
|
+ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
|
|
+ *
|
|
+ * Revision 1.10 2001/10/04 12:00:21 martinnn
|
|
+ * Added missing underscores.
|
|
+ *
|
|
+ * Revision 1.9 2001/10/01 14:47:35 bjornw
|
|
+ * Added register prefixes and removed underscores
|
|
+ *
|
|
+ * Revision 1.8 2001/05/15 07:12:45 hp
|
|
+ * Copy warning from head.S about r8 and r9
|
|
+ *
|
|
+ * Revision 1.7 2001/04/18 12:05:39 bjornw
|
|
+ * Fixed comments, and explicitely include config.h to be sure its there
|
|
+ *
|
|
+ * Revision 1.6 2001/04/10 06:20:16 starvik
|
|
+ * Delay should be 200us, not 200ns
|
|
+ *
|
|
+ * Revision 1.5 2001/04/09 06:01:13 starvik
|
|
+ * Added support for 100 MHz SDRAMs
|
|
+ *
|
|
+ * Revision 1.4 2001/03/26 14:24:01 bjornw
|
|
+ * Namechange of some config options
|
|
+ *
|
|
+ * Revision 1.3 2001/03/23 08:29:41 starvik
|
|
+ * Corrected calculation of mrs_data
|
|
+ *
|
|
+ * Revision 1.2 2001/02/08 15:20:00 starvik
|
|
+ * Corrected SDRAM initialization
|
|
+ * Should now be included as inline
|
|
+ *
|
|
+ * Revision 1.1 2001/01/29 13:08:02 starvik
|
|
+ * Initial version
|
|
+ * This file should be included from all assembler files that needs to
|
|
+ * initialize DRAM/SDRAM.
|
|
+ *
|
|
+ */
|
|
+
|
|
+/* Just to be certain the config file is included, we include it here
|
|
+ * explicitely instead of depending on it being included in the file that
|
|
+ * uses this code.
|
|
+ */
|
|
+
|
|
+
|
|
+ ;; WARNING! The registers r8 and r9 are used as parameters carrying
|
|
+ ;; information from the decompressor (if the kernel was compressed).
|
|
+ ;; They should not be used in the code below.
|
|
+
|
|
+#ifndef CONFIG_SVINTO_SIM
|
|
+ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
|
|
+ move.d $r0, [R_WAITSTATES]
|
|
+
|
|
+ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
|
|
+ move.d $r0, [R_BUS_CONFIG]
|
|
+
|
|
+#ifndef CONFIG_ETRAX_SDRAM
|
|
+ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
|
|
+ move.d $r0, [R_DRAM_CONFIG]
|
|
+
|
|
+ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
|
|
+ move.d $r0, [R_DRAM_TIMING]
|
|
+#else
|
|
+ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
|
|
+ moveq 2, $r6
|
|
+_sdram_init:
|
|
+
|
|
+ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
|
|
+
|
|
+ ; Bank configuration
|
|
+ move.d 0x09603737, $r0
|
|
+ move.d $r0, [R_SDRAM_CONFIG]
|
|
+
|
|
+ ; Calculate value of mrs_data
|
|
+ ; CAS latency = 2 && bus_width = 32 => 0x40
|
|
+ ; CAS latency = 3 && bus_width = 32 => 0x60
|
|
+ ; CAS latency = 2 && bus_width = 16 => 0x20
|
|
+ ; CAS latency = 3 && bus_width = 16 => 0x30
|
|
+
|
|
+ ; Check if value is already supplied in kernel config
|
|
+ move.d 0x80008002, $r2
|
|
+ and.d 0x00ff0000, $r2
|
|
+ bne _set_timing
|
|
+ lsrq 16, $r2
|
|
+
|
|
+ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
|
|
+ move.d 0x80008002, $r1
|
|
+ move.d $r1, $r3
|
|
+ and.d 0x03, $r1 ; Get CAS latency
|
|
+ and.d 0x1000, $r3 ; 50 or 100 MHz?
|
|
+ beq _speed_50
|
|
+ nop
|
|
+_speed_100:
|
|
+ cmp.d 0x00, $r1 ; CAS latency = 2?
|
|
+ beq _bw_check
|
|
+ nop
|
|
+ or.d 0x20, $r2 ; CAS latency = 3
|
|
+ ba _bw_check
|
|
+ nop
|
|
+_speed_50:
|
|
+ cmp.d 0x01, $r1 ; CAS latency = 2?
|
|
+ beq _bw_check
|
|
+ nop
|
|
+ or.d 0x20, $r2 ; CAS latency = 3
|
|
+_bw_check:
|
|
+ move.d 0x09603737, $r1
|
|
+ and.d 0x800000, $r1 ; DRAM width is bit 23
|
|
+ bne _set_timing
|
|
+ nop
|
|
+ lsrq 1, $r2 ; 16 bits. Shift down value.
|
|
+
|
|
+ ; Set timing parameters. Starts master clock
|
|
+_set_timing:
|
|
+ move.d 0x80008002, $r1
|
|
+ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
|
|
+ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
|
|
+ move.d $r1, $r5
|
|
+ or.d 0x0000c000, $r1 ; ref = disable
|
|
+ lslq 16, $r2 ; mrs data starts at bit 16
|
|
+ or.d $r2, $r1
|
|
+ move.d $r1, [R_SDRAM_TIMING]
|
|
+
|
|
+ ; Wait 200us
|
|
+ move.d 10000, $r2
|
|
+1: bne 1b
|
|
+ subq 1, $r2
|
|
+
|
|
+ ; Issue initialization command sequence
|
|
+ move.d _sdram_commands_start, $r2
|
|
+ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
|
|
+ move.d _sdram_commands_end, $r3
|
|
+ and.d 0x000fffff, $r3
|
|
+1: clear.d $r4
|
|
+ move.b [$r2+], $r4
|
|
+ lslq 9, $r4 ; Command starts at bit 9
|
|
+ or.d $r1, $r4
|
|
+ move.d $r4, [R_SDRAM_TIMING]
|
|
+ nop ; Wait five nop cycles between each command
|
|
+ nop
|
|
+ nop
|
|
+ nop
|
|
+ nop
|
|
+ cmp.d $r2, $r3
|
|
+ bne 1b
|
|
+ nop
|
|
+ move.d $r5, [R_SDRAM_TIMING]
|
|
+ subq 1, $r6
|
|
+ bne _sdram_init
|
|
+ nop
|
|
+ ba _sdram_commands_end
|
|
+ nop
|
|
+
|
|
+_sdram_commands_start:
|
|
+ .byte 3 ; Precharge
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 1 ; mrs
|
|
+ .byte 0 ; nop
|
|
+_sdram_commands_end:
|
|
+#endif
|
|
+#endif
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_MCM.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_MCM.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/dram_init_MCM.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/dram_init_MCM.S 2007-05-28 20:03:13.000000000 +0200
|
|
@@ -0,0 +1,207 @@
|
|
+/* $Id: dram_init.S,v 1.5 2006/10/13 12:43:11 starvik Exp $
|
|
+ *
|
|
+ * DRAM/SDRAM initialization - alter with care
|
|
+ * This file is intended to be included from other assembler files
|
|
+ *
|
|
+ * Note: This file may not modify r9 because r9 is used to carry
|
|
+ * information from the decompresser to the kernel
|
|
+ *
|
|
+ * Copyright (C) 2000, 2001 Axis Communications AB
|
|
+ *
|
|
+ * Authors: Mikael Starvik (starvik@axis.com)
|
|
+ *
|
|
+ * $Log: dram_init.S,v $
|
|
+ * Revision 1.5 2006/10/13 12:43:11 starvik
|
|
+ * Merge of 2.6.18
|
|
+ *
|
|
+ * Revision 1.4 2003/09/22 09:21:59 starvik
|
|
+ * Decompresser is linked to 0x407xxxxx and sdram commands are at 0x000xxxxx
|
|
+ * so we need to mask off 12 bits.
|
|
+ *
|
|
+ * Revision 1.3 2003/03/31 09:38:37 starvik
|
|
+ * Corrected calculation of end of sdram init commands
|
|
+ *
|
|
+ * Revision 1.2 2002/11/19 13:33:29 starvik
|
|
+ * Changes from Linux 2.4
|
|
+ *
|
|
+ * Revision 1.13 2002/10/30 07:42:28 starvik
|
|
+ * Always read SDRAM command sequence from flash
|
|
+ *
|
|
+ * Revision 1.12 2002/08/09 11:37:37 orjanf
|
|
+ * Added double initialization work-around for Samsung SDRAMs.
|
|
+ *
|
|
+ * Revision 1.11 2002/06/04 11:43:21 starvik
|
|
+ * Check if mrs_data is specified in kernelconfig (necessary for MCM)
|
|
+ *
|
|
+ * Revision 1.10 2001/10/04 12:00:21 martinnn
|
|
+ * Added missing underscores.
|
|
+ *
|
|
+ * Revision 1.9 2001/10/01 14:47:35 bjornw
|
|
+ * Added register prefixes and removed underscores
|
|
+ *
|
|
+ * Revision 1.8 2001/05/15 07:12:45 hp
|
|
+ * Copy warning from head.S about r8 and r9
|
|
+ *
|
|
+ * Revision 1.7 2001/04/18 12:05:39 bjornw
|
|
+ * Fixed comments, and explicitely include config.h to be sure its there
|
|
+ *
|
|
+ * Revision 1.6 2001/04/10 06:20:16 starvik
|
|
+ * Delay should be 200us, not 200ns
|
|
+ *
|
|
+ * Revision 1.5 2001/04/09 06:01:13 starvik
|
|
+ * Added support for 100 MHz SDRAMs
|
|
+ *
|
|
+ * Revision 1.4 2001/03/26 14:24:01 bjornw
|
|
+ * Namechange of some config options
|
|
+ *
|
|
+ * Revision 1.3 2001/03/23 08:29:41 starvik
|
|
+ * Corrected calculation of mrs_data
|
|
+ *
|
|
+ * Revision 1.2 2001/02/08 15:20:00 starvik
|
|
+ * Corrected SDRAM initialization
|
|
+ * Should now be included as inline
|
|
+ *
|
|
+ * Revision 1.1 2001/01/29 13:08:02 starvik
|
|
+ * Initial version
|
|
+ * This file should be included from all assembler files that needs to
|
|
+ * initialize DRAM/SDRAM.
|
|
+ *
|
|
+ */
|
|
+
|
|
+/* Just to be certain the config file is included, we include it here
|
|
+ * explicitely instead of depending on it being included in the file that
|
|
+ * uses this code.
|
|
+ */
|
|
+
|
|
+
|
|
+ ;; WARNING! The registers r8 and r9 are used as parameters carrying
|
|
+ ;; information from the decompressor (if the kernel was compressed).
|
|
+ ;; They should not be used in the code below.
|
|
+
|
|
+#ifndef CONFIG_SVINTO_SIM
|
|
+ move.d CONFIG_ETRAX_DEF_R_WAITSTATES, $r0
|
|
+ move.d $r0, [R_WAITSTATES]
|
|
+
|
|
+ move.d CONFIG_ETRAX_DEF_R_BUS_CONFIG, $r0
|
|
+ move.d $r0, [R_BUS_CONFIG]
|
|
+
|
|
+#ifndef CONFIG_ETRAX_SDRAM
|
|
+ move.d CONFIG_ETRAX_DEF_R_DRAM_CONFIG, $r0
|
|
+ move.d $r0, [R_DRAM_CONFIG]
|
|
+
|
|
+ move.d CONFIG_ETRAX_DEF_R_DRAM_TIMING, $r0
|
|
+ move.d $r0, [R_DRAM_TIMING]
|
|
+#else
|
|
+ ;; Samsung SDRAMs seem to require to be initialized twice to work properly.
|
|
+ moveq 2, $r6
|
|
+_sdram_init:
|
|
+
|
|
+ ; Refer to ETRAX 100LX Designers Reference for a description of SDRAM initialization
|
|
+
|
|
+ ; Bank configuration
|
|
+ move.d 0x09603636, $r0
|
|
+ move.d $r0, [R_SDRAM_CONFIG]
|
|
+
|
|
+ ; Calculate value of mrs_data
|
|
+ ; CAS latency = 2 && bus_width = 32 => 0x40
|
|
+ ; CAS latency = 3 && bus_width = 32 => 0x60
|
|
+ ; CAS latency = 2 && bus_width = 16 => 0x20
|
|
+ ; CAS latency = 3 && bus_width = 16 => 0x30
|
|
+
|
|
+ ; Check if value is already supplied in kernel config
|
|
+ move.d 0x80608002, $r2
|
|
+ and.d 0x00ff0000, $r2
|
|
+ bne _set_timing
|
|
+ lsrq 16, $r2
|
|
+
|
|
+ move.d 0x40, $r2 ; Assume 32 bits and CAS latency = 2
|
|
+ move.d 0x80608002, $r1
|
|
+ move.d $r1, $r3
|
|
+ and.d 0x03, $r1 ; Get CAS latency
|
|
+ and.d 0x1000, $r3 ; 50 or 100 MHz?
|
|
+ beq _speed_50
|
|
+ nop
|
|
+_speed_100:
|
|
+ cmp.d 0x00, $r1 ; CAS latency = 2?
|
|
+ beq _bw_check
|
|
+ nop
|
|
+ or.d 0x20, $r2 ; CAS latency = 3
|
|
+ ba _bw_check
|
|
+ nop
|
|
+_speed_50:
|
|
+ cmp.d 0x01, $r1 ; CAS latency = 2?
|
|
+ beq _bw_check
|
|
+ nop
|
|
+ or.d 0x20, $r2 ; CAS latency = 3
|
|
+_bw_check:
|
|
+ move.d 0x09603636, $r1
|
|
+ and.d 0x800000, $r1 ; DRAM width is bit 23
|
|
+ bne _set_timing
|
|
+ nop
|
|
+ lsrq 1, $r2 ; 16 bits. Shift down value.
|
|
+
|
|
+ ; Set timing parameters. Starts master clock
|
|
+_set_timing:
|
|
+ move.d 0x80608002, $r1
|
|
+ and.d 0x8000f9ff, $r1 ; Make sure mrs data and command is 0
|
|
+ or.d 0x80000000, $r1 ; Make sure sdram enable bit is set
|
|
+ move.d $r1, $r5
|
|
+ or.d 0x0000c000, $r1 ; ref = disable
|
|
+ lslq 16, $r2 ; mrs data starts at bit 16
|
|
+ or.d $r2, $r1
|
|
+ move.d $r1, [R_SDRAM_TIMING]
|
|
+
|
|
+ ; Wait 200us
|
|
+ move.d 10000, $r2
|
|
+1: bne 1b
|
|
+ subq 1, $r2
|
|
+
|
|
+ ; Issue initialization command sequence
|
|
+ move.d _sdram_commands_start, $r2
|
|
+ and.d 0x000fffff, $r2 ; Make sure commands are read from flash
|
|
+ move.d _sdram_commands_end, $r3
|
|
+ and.d 0x000fffff, $r3
|
|
+1: clear.d $r4
|
|
+ move.b [$r2+], $r4
|
|
+ lslq 9, $r4 ; Command starts at bit 9
|
|
+ or.d $r1, $r4
|
|
+ move.d $r4, [R_SDRAM_TIMING]
|
|
+ nop ; Wait five nop cycles between each command
|
|
+ nop
|
|
+ nop
|
|
+ nop
|
|
+ nop
|
|
+ cmp.d $r2, $r3
|
|
+ bne 1b
|
|
+ nop
|
|
+ move.d $r5, [R_SDRAM_TIMING]
|
|
+ subq 1, $r6
|
|
+ bne _sdram_init
|
|
+ nop
|
|
+ ba _sdram_commands_end
|
|
+ nop
|
|
+
|
|
+_sdram_commands_start:
|
|
+ .byte 3 ; Precharge
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 2 ; refresh
|
|
+ .byte 0 ; nop
|
|
+ .byte 1 ; mrs
|
|
+ .byte 0 ; nop
|
|
+_sdram_commands_end:
|
|
+#endif
|
|
+#endif
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_416.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_416.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_416.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_416.S 2007-05-28 17:16:28.000000000 +0200
|
|
@@ -0,0 +1,126 @@
|
|
+/*
|
|
+ * arch/cris/boot/compressed/head.S
|
|
+ *
|
|
+ * Copyright (C) 1999, 2001 Axis Communications AB
|
|
+ *
|
|
+ * Code that sets up the DRAM registers, calls the
|
|
+ * decompressor to unpack the piggybacked kernel, and jumps.
|
|
+ *
|
|
+ */
|
|
+
|
|
+#define ASSEMBLER_MACROS_ONLY
|
|
+#include <asm/arch/sv_addr_ag.h>
|
|
+
|
|
+#define RAM_INIT_MAGIC 0x56902387
|
|
+#define COMMAND_LINE_MAGIC 0x87109563
|
|
+
|
|
+ ;; Exported symbols
|
|
+
|
|
+ .globl _input_data
|
|
+
|
|
+
|
|
+ .text
|
|
+
|
|
+ nop
|
|
+ di
|
|
+
|
|
+;; We need to initialze DRAM registers before we start using the DRAM
|
|
+
|
|
+ cmp.d RAM_INIT_MAGIC, r8 ; Already initialized?
|
|
+ beq dram_init_finished
|
|
+ nop
|
|
+
|
|
+#include "dram_init_416.S"
|
|
+
|
|
+dram_init_finished:
|
|
+
|
|
+ ;; Initiate the PA and PB ports
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0
|
|
+ move.b r0, [R_PORT_PA_DATA]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0
|
|
+ move.b r0, [R_PORT_PA_DIR]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0
|
|
+ move.b r0, [R_PORT_PB_DATA]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0
|
|
+ move.b r0, [R_PORT_PB_DIR]
|
|
+
|
|
+ ;; Setup the stack to a suitably high address.
|
|
+ ;; We assume 8 MB is the minimum DRAM in an eLinux
|
|
+ ;; product and put the sp at the top for now.
|
|
+
|
|
+ move.d 0x40800000, sp
|
|
+
|
|
+ ;; Figure out where the compressed piggyback image is
|
|
+ ;; in the flash (since we wont try to copy it to DRAM
|
|
+ ;; before unpacking). It is at _edata, but in flash.
|
|
+ ;; Use (_edata - basse) as offset to the current PC.
|
|
+
|
|
+basse: move.d pc, r5
|
|
+ and.d 0x7fffffff, r5 ; strip any non-cache bit
|
|
+ subq 2, r5 ; compensate for the move.d pc instr
|
|
+ move.d r5, r0 ; save for later - flash address of 'basse'
|
|
+ add.d _edata, r5
|
|
+ sub.d basse, r5 ; r5 = flash address of '_edata'
|
|
+
|
|
+ ;; Copy text+data to DRAM
|
|
+
|
|
+ move.d basse, r1 ; destination
|
|
+ move.d _edata, r2 ; end destination
|
|
+1: move.w [r0+], r3
|
|
+ move.w r3, [r1+]
|
|
+ cmp.d r2, r1
|
|
+ bcs 1b
|
|
+ nop
|
|
+
|
|
+ move.d r5, [_input_data] ; 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, $r12
|
|
+ move.d $r10, [$r12]
|
|
+ move.d _cmd_line_addr, $r12
|
|
+ move.d $r11, [$r12]
|
|
+
|
|
+ ;; Do the decompression and save compressed size in _inptr
|
|
+
|
|
+ jsr _decompress_kernel
|
|
+
|
|
+ ;; Put start address of root partition in r9 so the kernel can use it
|
|
+ ;; when mounting from flash
|
|
+
|
|
+ move.d [_input_data], r9 ; flash address of compressed kernel
|
|
+ add.d [_inptr], r9 ; size of compressed kernel
|
|
+
|
|
+ ;; 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
|
|
+
|
|
+ ;; Enter the decompressed kernel
|
|
+ move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized
|
|
+ jump 0x40004000 ; kernel is linked to this address
|
|
+
|
|
+ .data
|
|
+
|
|
+_input_data:
|
|
+ .dword 0 ; used by the decompressor
|
|
+_cmd_line_magic:
|
|
+ .dword 0
|
|
+_cmd_line_addr:
|
|
+ .dword 0
|
|
+#include "hw_settings_416.S"
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_816.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_816.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_816.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_816.S 2007-05-28 17:16:58.000000000 +0200
|
|
@@ -0,0 +1,126 @@
|
|
+/*
|
|
+ * arch/cris/boot/compressed/head.S
|
|
+ *
|
|
+ * Copyright (C) 1999, 2001 Axis Communications AB
|
|
+ *
|
|
+ * Code that sets up the DRAM registers, calls the
|
|
+ * decompressor to unpack the piggybacked kernel, and jumps.
|
|
+ *
|
|
+ */
|
|
+
|
|
+#define ASSEMBLER_MACROS_ONLY
|
|
+#include <asm/arch/sv_addr_ag.h>
|
|
+
|
|
+#define RAM_INIT_MAGIC 0x56902387
|
|
+#define COMMAND_LINE_MAGIC 0x87109563
|
|
+
|
|
+ ;; Exported symbols
|
|
+
|
|
+ .globl _input_data
|
|
+
|
|
+
|
|
+ .text
|
|
+
|
|
+ nop
|
|
+ di
|
|
+
|
|
+;; We need to initialze DRAM registers before we start using the DRAM
|
|
+
|
|
+ cmp.d RAM_INIT_MAGIC, r8 ; Already initialized?
|
|
+ beq dram_init_finished
|
|
+ nop
|
|
+
|
|
+#include "dram_init_816.S"
|
|
+
|
|
+dram_init_finished:
|
|
+
|
|
+ ;; Initiate the PA and PB ports
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0
|
|
+ move.b r0, [R_PORT_PA_DATA]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0
|
|
+ move.b r0, [R_PORT_PA_DIR]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0
|
|
+ move.b r0, [R_PORT_PB_DATA]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0
|
|
+ move.b r0, [R_PORT_PB_DIR]
|
|
+
|
|
+ ;; Setup the stack to a suitably high address.
|
|
+ ;; We assume 8 MB is the minimum DRAM in an eLinux
|
|
+ ;; product and put the sp at the top for now.
|
|
+
|
|
+ move.d 0x40800000, sp
|
|
+
|
|
+ ;; Figure out where the compressed piggyback image is
|
|
+ ;; in the flash (since we wont try to copy it to DRAM
|
|
+ ;; before unpacking). It is at _edata, but in flash.
|
|
+ ;; Use (_edata - basse) as offset to the current PC.
|
|
+
|
|
+basse: move.d pc, r5
|
|
+ and.d 0x7fffffff, r5 ; strip any non-cache bit
|
|
+ subq 2, r5 ; compensate for the move.d pc instr
|
|
+ move.d r5, r0 ; save for later - flash address of 'basse'
|
|
+ add.d _edata, r5
|
|
+ sub.d basse, r5 ; r5 = flash address of '_edata'
|
|
+
|
|
+ ;; Copy text+data to DRAM
|
|
+
|
|
+ move.d basse, r1 ; destination
|
|
+ move.d _edata, r2 ; end destination
|
|
+1: move.w [r0+], r3
|
|
+ move.w r3, [r1+]
|
|
+ cmp.d r2, r1
|
|
+ bcs 1b
|
|
+ nop
|
|
+
|
|
+ move.d r5, [_input_data] ; 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, $r12
|
|
+ move.d $r10, [$r12]
|
|
+ move.d _cmd_line_addr, $r12
|
|
+ move.d $r11, [$r12]
|
|
+
|
|
+ ;; Do the decompression and save compressed size in _inptr
|
|
+
|
|
+ jsr _decompress_kernel
|
|
+
|
|
+ ;; Put start address of root partition in r9 so the kernel can use it
|
|
+ ;; when mounting from flash
|
|
+
|
|
+ move.d [_input_data], r9 ; flash address of compressed kernel
|
|
+ add.d [_inptr], r9 ; size of compressed kernel
|
|
+
|
|
+ ;; 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
|
|
+
|
|
+ ;; Enter the decompressed kernel
|
|
+ move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized
|
|
+ jump 0x40004000 ; kernel is linked to this address
|
|
+
|
|
+ .data
|
|
+
|
|
+_input_data:
|
|
+ .dword 0 ; used by the decompressor
|
|
+_cmd_line_magic:
|
|
+ .dword 0
|
|
+_cmd_line_addr:
|
|
+ .dword 0
|
|
+#include "hw_settings_816.S"
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_832.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_832.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_832.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_832.S 2007-05-28 17:17:12.000000000 +0200
|
|
@@ -0,0 +1,126 @@
|
|
+/*
|
|
+ * arch/cris/boot/compressed/head.S
|
|
+ *
|
|
+ * Copyright (C) 1999, 2001 Axis Communications AB
|
|
+ *
|
|
+ * Code that sets up the DRAM registers, calls the
|
|
+ * decompressor to unpack the piggybacked kernel, and jumps.
|
|
+ *
|
|
+ */
|
|
+
|
|
+#define ASSEMBLER_MACROS_ONLY
|
|
+#include <asm/arch/sv_addr_ag.h>
|
|
+
|
|
+#define RAM_INIT_MAGIC 0x56902387
|
|
+#define COMMAND_LINE_MAGIC 0x87109563
|
|
+
|
|
+ ;; Exported symbols
|
|
+
|
|
+ .globl _input_data
|
|
+
|
|
+
|
|
+ .text
|
|
+
|
|
+ nop
|
|
+ di
|
|
+
|
|
+;; We need to initialze DRAM registers before we start using the DRAM
|
|
+
|
|
+ cmp.d RAM_INIT_MAGIC, r8 ; Already initialized?
|
|
+ beq dram_init_finished
|
|
+ nop
|
|
+
|
|
+#include "dram_init_832.S"
|
|
+
|
|
+dram_init_finished:
|
|
+
|
|
+ ;; Initiate the PA and PB ports
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0
|
|
+ move.b r0, [R_PORT_PA_DATA]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0
|
|
+ move.b r0, [R_PORT_PA_DIR]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0
|
|
+ move.b r0, [R_PORT_PB_DATA]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0
|
|
+ move.b r0, [R_PORT_PB_DIR]
|
|
+
|
|
+ ;; Setup the stack to a suitably high address.
|
|
+ ;; We assume 8 MB is the minimum DRAM in an eLinux
|
|
+ ;; product and put the sp at the top for now.
|
|
+
|
|
+ move.d 0x40800000, sp
|
|
+
|
|
+ ;; Figure out where the compressed piggyback image is
|
|
+ ;; in the flash (since we wont try to copy it to DRAM
|
|
+ ;; before unpacking). It is at _edata, but in flash.
|
|
+ ;; Use (_edata - basse) as offset to the current PC.
|
|
+
|
|
+basse: move.d pc, r5
|
|
+ and.d 0x7fffffff, r5 ; strip any non-cache bit
|
|
+ subq 2, r5 ; compensate for the move.d pc instr
|
|
+ move.d r5, r0 ; save for later - flash address of 'basse'
|
|
+ add.d _edata, r5
|
|
+ sub.d basse, r5 ; r5 = flash address of '_edata'
|
|
+
|
|
+ ;; Copy text+data to DRAM
|
|
+
|
|
+ move.d basse, r1 ; destination
|
|
+ move.d _edata, r2 ; end destination
|
|
+1: move.w [r0+], r3
|
|
+ move.w r3, [r1+]
|
|
+ cmp.d r2, r1
|
|
+ bcs 1b
|
|
+ nop
|
|
+
|
|
+ move.d r5, [_input_data] ; 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, $r12
|
|
+ move.d $r10, [$r12]
|
|
+ move.d _cmd_line_addr, $r12
|
|
+ move.d $r11, [$r12]
|
|
+
|
|
+ ;; Do the decompression and save compressed size in _inptr
|
|
+
|
|
+ jsr _decompress_kernel
|
|
+
|
|
+ ;; Put start address of root partition in r9 so the kernel can use it
|
|
+ ;; when mounting from flash
|
|
+
|
|
+ move.d [_input_data], r9 ; flash address of compressed kernel
|
|
+ add.d [_inptr], r9 ; size of compressed kernel
|
|
+
|
|
+ ;; 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
|
|
+
|
|
+ ;; Enter the decompressed kernel
|
|
+ move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized
|
|
+ jump 0x40004000 ; kernel is linked to this address
|
|
+
|
|
+ .data
|
|
+
|
|
+_input_data:
|
|
+ .dword 0 ; used by the decompressor
|
|
+_cmd_line_magic:
|
|
+ .dword 0
|
|
+_cmd_line_addr:
|
|
+ .dword 0
|
|
+#include "hw_settings_832.S"
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_MCM.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_MCM.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/head_MCM.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/head_MCM.S 2007-05-28 17:17:51.000000000 +0200
|
|
@@ -0,0 +1,126 @@
|
|
+/*
|
|
+ * arch/cris/boot/compressed/head.S
|
|
+ *
|
|
+ * Copyright (C) 1999, 2001 Axis Communications AB
|
|
+ *
|
|
+ * Code that sets up the DRAM registers, calls the
|
|
+ * decompressor to unpack the piggybacked kernel, and jumps.
|
|
+ *
|
|
+ */
|
|
+
|
|
+#define ASSEMBLER_MACROS_ONLY
|
|
+#include <asm/arch/sv_addr_ag.h>
|
|
+
|
|
+#define RAM_INIT_MAGIC 0x56902387
|
|
+#define COMMAND_LINE_MAGIC 0x87109563
|
|
+
|
|
+ ;; Exported symbols
|
|
+
|
|
+ .globl _input_data
|
|
+
|
|
+
|
|
+ .text
|
|
+
|
|
+ nop
|
|
+ di
|
|
+
|
|
+;; We need to initialze DRAM registers before we start using the DRAM
|
|
+
|
|
+ cmp.d RAM_INIT_MAGIC, r8 ; Already initialized?
|
|
+ beq dram_init_finished
|
|
+ nop
|
|
+
|
|
+#include "dram_init_MCM.S"
|
|
+
|
|
+dram_init_finished:
|
|
+
|
|
+ ;; Initiate the PA and PB ports
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DATA, r0
|
|
+ move.b r0, [R_PORT_PA_DATA]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PA_DIR, r0
|
|
+ move.b r0, [R_PORT_PA_DIR]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DATA, r0
|
|
+ move.b r0, [R_PORT_PB_DATA]
|
|
+
|
|
+ move.b CONFIG_ETRAX_DEF_R_PORT_PB_DIR, r0
|
|
+ move.b r0, [R_PORT_PB_DIR]
|
|
+
|
|
+ ;; Setup the stack to a suitably high address.
|
|
+ ;; We assume 8 MB is the minimum DRAM in an eLinux
|
|
+ ;; product and put the sp at the top for now.
|
|
+
|
|
+ move.d 0x40800000, sp
|
|
+
|
|
+ ;; Figure out where the compressed piggyback image is
|
|
+ ;; in the flash (since we wont try to copy it to DRAM
|
|
+ ;; before unpacking). It is at _edata, but in flash.
|
|
+ ;; Use (_edata - basse) as offset to the current PC.
|
|
+
|
|
+basse: move.d pc, r5
|
|
+ and.d 0x7fffffff, r5 ; strip any non-cache bit
|
|
+ subq 2, r5 ; compensate for the move.d pc instr
|
|
+ move.d r5, r0 ; save for later - flash address of 'basse'
|
|
+ add.d _edata, r5
|
|
+ sub.d basse, r5 ; r5 = flash address of '_edata'
|
|
+
|
|
+ ;; Copy text+data to DRAM
|
|
+
|
|
+ move.d basse, r1 ; destination
|
|
+ move.d _edata, r2 ; end destination
|
|
+1: move.w [r0+], r3
|
|
+ move.w r3, [r1+]
|
|
+ cmp.d r2, r1
|
|
+ bcs 1b
|
|
+ nop
|
|
+
|
|
+ move.d r5, [_input_data] ; 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, $r12
|
|
+ move.d $r10, [$r12]
|
|
+ move.d _cmd_line_addr, $r12
|
|
+ move.d $r11, [$r12]
|
|
+
|
|
+ ;; Do the decompression and save compressed size in _inptr
|
|
+
|
|
+ jsr _decompress_kernel
|
|
+
|
|
+ ;; Put start address of root partition in r9 so the kernel can use it
|
|
+ ;; when mounting from flash
|
|
+
|
|
+ move.d [_input_data], r9 ; flash address of compressed kernel
|
|
+ add.d [_inptr], r9 ; size of compressed kernel
|
|
+
|
|
+ ;; 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
|
|
+
|
|
+ ;; Enter the decompressed kernel
|
|
+ move.d RAM_INIT_MAGIC, r8 ; Tell kernel that DRAM is initialized
|
|
+ jump 0x40004000 ; kernel is linked to this address
|
|
+
|
|
+ .data
|
|
+
|
|
+_input_data:
|
|
+ .dword 0 ; used by the decompressor
|
|
+_cmd_line_magic:
|
|
+ .dword 0
|
|
+_cmd_line_addr:
|
|
+ .dword 0
|
|
+#include "hw_settings_MCM.S"
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings.S 2007-05-28 17:14:14.000000000 +0200
|
|
@@ -0,0 +1,62 @@
|
|
+/*
|
|
+ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
|
|
+ *
|
|
+ * This table is used by some tools to extract hardware parameters.
|
|
+ * The table should be included in the kernel and the decompressor.
|
|
+ * Don't forget to update the tools if you change this table.
|
|
+ *
|
|
+ * Copyright (C) 2001 Axis Communications AB
|
|
+ *
|
|
+ * Authors: Mikael Starvik (starvik@axis.com)
|
|
+ */
|
|
+
|
|
+#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
|
|
+#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
|
|
+
|
|
+ .ascii "HW_PARAM_MAGIC" ; Magic number
|
|
+ .dword 0xc0004000 ; Kernel start address
|
|
+
|
|
+ ; Debug port
|
|
+#ifdef CONFIG_ETRAX_DEBUG_PORT0
|
|
+ .dword 0
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
|
|
+ .dword 1
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
|
|
+ .dword 2
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
|
|
+ .dword 3
|
|
+#else
|
|
+ .dword 4 ; No debug
|
|
+#endif
|
|
+
|
|
+ ; SDRAM or EDO DRAM?
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword 1
|
|
+#else
|
|
+ .dword 0
|
|
+#endif
|
|
+
|
|
+ ; Register values
|
|
+ .dword R_WAITSTATES
|
|
+ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
|
|
+ .dword R_BUS_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword R_SDRAM_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_SDRAM_CONFIG
|
|
+ .dword R_SDRAM_TIMING
|
|
+ .dword CONFIG_ETRAX_DEF_R_SDRAM_TIMING
|
|
+#else
|
|
+ .dword R_DRAM_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_DRAM_CONFIG
|
|
+ .dword R_DRAM_TIMING
|
|
+ .dword CONFIG_ETRAX_DEF_R_DRAM_TIMING
|
|
+#endif
|
|
+ .dword R_PORT_PA_SET
|
|
+ .dword PA_SET_VALUE
|
|
+ .dword R_PORT_PB_SET
|
|
+ .dword PB_SET_VALUE
|
|
+ .dword 0 ; No more register values
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_416.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_416.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_416.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_416.S 2007-05-28 20:12:02.000000000 +0200
|
|
@@ -0,0 +1,62 @@
|
|
+/*
|
|
+ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
|
|
+ *
|
|
+ * This table is used by some tools to extract hardware parameters.
|
|
+ * The table should be included in the kernel and the decompressor.
|
|
+ * Don't forget to update the tools if you change this table.
|
|
+ *
|
|
+ * Copyright (C) 2001 Axis Communications AB
|
|
+ *
|
|
+ * Authors: Mikael Starvik (starvik@axis.com)
|
|
+ */
|
|
+
|
|
+#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
|
|
+#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
|
|
+
|
|
+ .ascii "HW_PARAM_MAGIC" ; Magic number
|
|
+ .dword 0xc0004000 ; Kernel start address
|
|
+
|
|
+ ; Debug port
|
|
+#ifdef CONFIG_ETRAX_DEBUG_PORT0
|
|
+ .dword 0
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
|
|
+ .dword 1
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
|
|
+ .dword 2
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
|
|
+ .dword 3
|
|
+#else
|
|
+ .dword 4 ; No debug
|
|
+#endif
|
|
+
|
|
+ ; SDRAM or EDO DRAM?
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword 1
|
|
+#else
|
|
+ .dword 0
|
|
+#endif
|
|
+
|
|
+ ; Register values
|
|
+ .dword R_WAITSTATES
|
|
+ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
|
|
+ .dword R_BUS_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword R_SDRAM_CONFIG
|
|
+ .dword 0x09603636
|
|
+ .dword R_SDRAM_TIMING
|
|
+ .dword 0x80008002
|
|
+#else
|
|
+ .dword R_DRAM_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_DRAM_CONFIG
|
|
+ .dword R_DRAM_TIMING
|
|
+ .dword CONFIG_ETRAX_DEF_R_DRAM_TIMING
|
|
+#endif
|
|
+ .dword R_PORT_PA_SET
|
|
+ .dword PA_SET_VALUE
|
|
+ .dword R_PORT_PB_SET
|
|
+ .dword PB_SET_VALUE
|
|
+ .dword 0 ; No more register values
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_816.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_816.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_816.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_816.S 2007-05-28 20:12:29.000000000 +0200
|
|
@@ -0,0 +1,62 @@
|
|
+/*
|
|
+ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
|
|
+ *
|
|
+ * This table is used by some tools to extract hardware parameters.
|
|
+ * The table should be included in the kernel and the decompressor.
|
|
+ * Don't forget to update the tools if you change this table.
|
|
+ *
|
|
+ * Copyright (C) 2001 Axis Communications AB
|
|
+ *
|
|
+ * Authors: Mikael Starvik (starvik@axis.com)
|
|
+ */
|
|
+
|
|
+#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
|
|
+#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
|
|
+
|
|
+ .ascii "HW_PARAM_MAGIC" ; Magic number
|
|
+ .dword 0xc0004000 ; Kernel start address
|
|
+
|
|
+ ; Debug port
|
|
+#ifdef CONFIG_ETRAX_DEBUG_PORT0
|
|
+ .dword 0
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
|
|
+ .dword 1
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
|
|
+ .dword 2
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
|
|
+ .dword 3
|
|
+#else
|
|
+ .dword 4 ; No debug
|
|
+#endif
|
|
+
|
|
+ ; SDRAM or EDO DRAM?
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword 1
|
|
+#else
|
|
+ .dword 0
|
|
+#endif
|
|
+
|
|
+ ; Register values
|
|
+ .dword R_WAITSTATES
|
|
+ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
|
|
+ .dword R_BUS_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword R_SDRAM_CONFIG
|
|
+ .dword 0x09603636
|
|
+ .dword R_SDRAM_TIMING
|
|
+ .dword 0x80008002
|
|
+#else
|
|
+ .dword R_DRAM_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_DRAM_CONFIG
|
|
+ .dword R_DRAM_TIMING
|
|
+ .dword CONFIG_ETRAX_DEF_R_DRAM_TIMING
|
|
+#endif
|
|
+ .dword R_PORT_PA_SET
|
|
+ .dword PA_SET_VALUE
|
|
+ .dword R_PORT_PB_SET
|
|
+ .dword PB_SET_VALUE
|
|
+ .dword 0 ; No more register values
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_832.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_832.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_832.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_832.S 2007-05-28 20:12:55.000000000 +0200
|
|
@@ -0,0 +1,62 @@
|
|
+/*
|
|
+ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
|
|
+ *
|
|
+ * This table is used by some tools to extract hardware parameters.
|
|
+ * The table should be included in the kernel and the decompressor.
|
|
+ * Don't forget to update the tools if you change this table.
|
|
+ *
|
|
+ * Copyright (C) 2001 Axis Communications AB
|
|
+ *
|
|
+ * Authors: Mikael Starvik (starvik@axis.com)
|
|
+ */
|
|
+
|
|
+#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
|
|
+#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
|
|
+
|
|
+ .ascii "HW_PARAM_MAGIC" ; Magic number
|
|
+ .dword 0xc0004000 ; Kernel start address
|
|
+
|
|
+ ; Debug port
|
|
+#ifdef CONFIG_ETRAX_DEBUG_PORT0
|
|
+ .dword 0
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
|
|
+ .dword 1
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
|
|
+ .dword 2
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
|
|
+ .dword 3
|
|
+#else
|
|
+ .dword 4 ; No debug
|
|
+#endif
|
|
+
|
|
+ ; SDRAM or EDO DRAM?
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword 1
|
|
+#else
|
|
+ .dword 0
|
|
+#endif
|
|
+
|
|
+ ; Register values
|
|
+ .dword R_WAITSTATES
|
|
+ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
|
|
+ .dword R_BUS_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword R_SDRAM_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_SDRAM_CONFIG
|
|
+ .dword R_SDRAM_TIMING
|
|
+ .dword CONFIG_ETRAX_DEF_R_SDRAM_TIMING
|
|
+#else
|
|
+ .dword R_DRAM_CONFIG
|
|
+ .dword 0x09603737
|
|
+ .dword R_DRAM_TIMING
|
|
+ .dword 0x80008002
|
|
+#endif
|
|
+ .dword R_PORT_PA_SET
|
|
+ .dword PA_SET_VALUE
|
|
+ .dword R_PORT_PB_SET
|
|
+ .dword PB_SET_VALUE
|
|
+ .dword 0 ; No more register values
|
|
diff -urN linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S
|
|
--- linux-2.6.19.2.orig/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S 1970-01-01 01:00:00.000000000 +0100
|
|
+++ linux-2.6.19.2/arch/cris/arch-v10/boot/compressed/hw_settings_MCM.S 2007-05-28 20:11:31.000000000 +0200
|
|
@@ -0,0 +1,62 @@
|
|
+/*
|
|
+ * $Id: hw_settings.S,v 1.1 2001/12/17 13:59:27 bjornw Exp $
|
|
+ *
|
|
+ * This table is used by some tools to extract hardware parameters.
|
|
+ * The table should be included in the kernel and the decompressor.
|
|
+ * Don't forget to update the tools if you change this table.
|
|
+ *
|
|
+ * Copyright (C) 2001 Axis Communications AB
|
|
+ *
|
|
+ * Authors: Mikael Starvik (starvik@axis.com)
|
|
+ */
|
|
+
|
|
+#define PA_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PA_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PA_DATA))
|
|
+#define PB_SET_VALUE ((CONFIG_ETRAX_DEF_R_PORT_PB_CONFIG << 16) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DIR << 8) | \
|
|
+ (CONFIG_ETRAX_DEF_R_PORT_PB_DATA))
|
|
+
|
|
+ .ascii "HW_PARAM_MAGIC" ; Magic number
|
|
+ .dword 0xc0004000 ; Kernel start address
|
|
+
|
|
+ ; Debug port
|
|
+#ifdef CONFIG_ETRAX_DEBUG_PORT0
|
|
+ .dword 0
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT1)
|
|
+ .dword 1
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT2)
|
|
+ .dword 2
|
|
+#elif defined(CONFIG_ETRAX_DEBUG_PORT3)
|
|
+ .dword 3
|
|
+#else
|
|
+ .dword 4 ; No debug
|
|
+#endif
|
|
+
|
|
+ ; SDRAM or EDO DRAM?
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword 1
|
|
+#else
|
|
+ .dword 0
|
|
+#endif
|
|
+
|
|
+ ; Register values
|
|
+ .dword R_WAITSTATES
|
|
+ .dword CONFIG_ETRAX_DEF_R_WAITSTATES
|
|
+ .dword R_BUS_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_BUS_CONFIG
|
|
+#ifdef CONFIG_ETRAX_SDRAM
|
|
+ .dword R_SDRAM_CONFIG
|
|
+ .dword 0x09603636
|
|
+ .dword R_SDRAM_TIMING
|
|
+ .dword 0x80608002
|
|
+#else
|
|
+ .dword R_DRAM_CONFIG
|
|
+ .dword CONFIG_ETRAX_DEF_R_DRAM_CONFIG
|
|
+ .dword R_DRAM_TIMING
|
|
+ .dword CONFIG_ETRAX_DEF_R_DRAM_TIMING
|
|
+#endif
|
|
+ .dword R_PORT_PA_SET
|
|
+ .dword PA_SET_VALUE
|
|
+ .dword R_PORT_PB_SET
|
|
+ .dword PB_SET_VALUE
|
|
+ .dword 0 ; No more register values
|