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board/neo1973/lowlevel_foo.S: http://people.openmoko.org/laforge/tmp/bbt-20070206/lowlevel_foo.S
board/neo1973/lowlevel_foo.lds: http://people.openmoko.org/laforge/tmp/bbt-20070206/lowlevel_foo.lds
board/neo1973/Makefile: added building of lowlevel_foo.bin (based on
http://people.openmoko.org/laforge/tmp/bbt-20070206/lowlevel_foo.build.sh)
Index: u-boot/board/neo1973/common/lowlevel_foo.S
===================================================================
--- /dev/null
+++ u-boot/board/neo1973/common/lowlevel_foo.S
@@ -0,0 +1,82 @@
+
+_start:
+ b reset
+undefvec:
+ b undefvec
+swivec:
+ b swivec
+pabtvec:
+ b pabtvec
+dabtvec:
+ b dabtvec
+rsvdvec:
+ b rsvdvec
+irqvec:
+ b irqvec
+fiqvec:
+ b fiqvec
+
+reset:
+ /*
+ * set the cpu to SVC32 mode
+ */
+ mrs r0,cpsr
+ bic r0,r0,#0x1f
+ orr r0,r0,#0xd3
+ msr cpsr,r0
+
+/* turn off the watchdog */
+#define pWTCON 0x53000000
+#define INTMSK 0x4A000008 /* Interupt-Controller base addresses */
+#define INTSUBMSK 0x4A00001C
+#define CLKDIVN 0x4C000014 /* clock divisor register */
+
+ ldr r0, =pWTCON
+ mov r1, #0x0
+ str r1, [r0]
+
+ mov r1, #0xffffffff
+ ldr r0, =INTMSK
+ str r1, [r0]
+ ldr r1, =0x3ff
+ ldr r0, =INTSUBMSK
+ str r1, [r0]
+
+ /* FCLK:HCLK:PCLK = 1:2:4 */
+ /* default FCLK is 120 MHz ! */
+ ldr r0, =CLKDIVN
+ mov r1, #3
+ str r1, [r0]
+
+ bl cpu_init_crit
+ ldr r0,=TEXT_BASE
+ mov pc, r0
+
+cpu_init_crit:
+ /*
+ * flush v4 I/D caches
+ */
+ mov r0, #0
+ mcr p15, 0, r0, c7, c7, 0 /* flush v3/v4 cache */
+ mcr p15, 0, r0, c8, c7, 0 /* flush v4 TLB */
+
+ /*
+ * disable MMU stuff and caches
+ */
+ mrc p15, 0, r0, c1, c0, 0
+ bic r0, r0, #0x00002300 @ clear bits 13, 9:8 (--V- --RS)
+ bic r0, r0, #0x00000087 @ clear bits 7, 2:0 (B--- -CAM)
+ orr r0, r0, #0x00000002 @ set bit 2 (A) Align
+ orr r0, r0, #0x00001000 @ set bit 12 (I) I-Cache
+ mcr p15, 0, r0, c1, c0, 0
+
+ /*
+ * before relocating, we have to setup RAM timing
+ * because memory timing is board-dependend, you will
+ * find a lowlevel_init.S in your board directory.
+ */
+ mov ip, lr
+ bl lowlevel_init
+ mov lr, ip
+ mov pc, lr
+
Index: u-boot/board/neo1973/common/lowlevel_foo.lds
===================================================================
--- /dev/null
+++ u-boot/board/neo1973/common/lowlevel_foo.lds
@@ -0,0 +1,56 @@
+/*
+ * (C) Copyright 2002
+ * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+ . = 0x00000000;
+
+ . = ALIGN(4);
+ .text :
+ {
+ lowlevel_foo.o (.text)
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(.rodata) }
+
+ . = ALIGN(4);
+ .data : { *(.data) }
+
+ . = ALIGN(4);
+ .got : { *(.got) }
+
+ . = .;
+ __u_boot_cmd_start = .;
+ .u_boot_cmd : { *(.u_boot_cmd) }
+ __u_boot_cmd_end = .;
+
+ . = ALIGN(4);
+ __bss_start = .;
+ .bss : { *(.bss) }
+ _end = .;
+}
Index: u-boot/board/neo1973/gta01/Makefile
===================================================================
--- u-boot.orig/board/neo1973/gta01/Makefile
+++ u-boot/board/neo1973/gta01/Makefile
@@ -28,14 +28,31 @@
OBJS := gta01.o pcf50606.o ../common/cmd_neo1973.o ../common/jbt6k74.o ../common/udc.o
SOBJS := ../common/lowlevel_init.o
+.PHONY: all
+
+all: $(LIB) lowevel_foo.bin
+
$(LIB): $(OBJS) $(SOBJS)
$(AR) crv $@ $(OBJS) $(SOBJS)
+lowlevel_foo.o: ../common/lowlevel_foo.S
+ $(CC) -c -DTEXT_BASE=0x33F80000 -march=armv4 \
+ -o lowlevel_foo.o ../common/lowlevel_foo.S
+
+lowlevel_foo: lowlevel_foo.o ../common/lowlevel_init.o ../common/lowlevel_foo.lds
+ $(LD) -T ../common/lowlevel_foo.lds -Ttext 0x33f80000 -Bstatic \
+ ../common/lowlevel_init.o lowlevel_foo.o -o lowlevel_foo
+
+lowevel_foo.bin: lowlevel_foo
+ $(CROSS_COMPILE)objcopy --gap-fill=0xff -O binary \
+ lowlevel_foo lowlevel_foo.bin
+
+
clean:
- rm -f $(SOBJS) $(OBJS)
+ rm -f $(SOBJS) $(OBJS) lowlevel_foo lowlevel_foo.o
distclean: clean
- rm -f $(LIB) core *.bak .depend
+ rm -f $(LIB) core *.bak .depend lowlevel_foo.bin
#########################################################################
Index: u-boot/board/qt2410/Makefile
===================================================================
--- u-boot.orig/board/qt2410/Makefile
+++ u-boot/board/qt2410/Makefile
@@ -28,14 +28,31 @@
OBJS := qt2410.o flash.o
SOBJS := lowlevel_init.o
+.PHONY: all
+
+all: $(LIB) lowevel_foo.bin
+
$(LIB): $(OBJS) $(SOBJS)
$(AR) crv $@ $(OBJS) $(SOBJS)
+lowlevel_foo.o: ../neo1973/common/lowlevel_foo.S
+ $(CC) -c -DTEXT_BASE=0x33F80000 -march=armv4 \
+ -o lowlevel_foo.o ../neo1973/common/lowlevel_foo.S
+
+lowlevel_foo: lowlevel_foo.o lowlevel_init.o \
+ ../neo1973/common/lowlevel_foo.lds
+ $(LD) -T ../neo1973/common/lowlevel_foo.lds -Ttext 0x33f80000 -Bstatic \
+ lowlevel_init.o lowlevel_foo.o -o lowlevel_foo
+
+lowevel_foo.bin: lowlevel_foo
+ $(CROSS_COMPILE)objcopy --gap-fill=0xff -O binary \
+ lowlevel_foo lowlevel_foo.bin
+
clean:
- rm -f $(SOBJS) $(OBJS)
+ rm -f $(SOBJS) $(OBJS) lowlevel_foo lowlevel_foo.o
distclean: clean
- rm -f $(LIB) core *.bak .depend
+ rm -f $(LIB) core *.bak .depend lowlevel_foo.bin
#########################################################################
|
