Initial version.

4 files changed, 120 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..3e40b27
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,29 @@
+# Build an ELF linux+filesystem image
+
+BOOTLOADER	= boot.bin
+KERNEL		= uImage
+FILESYSTEM	= base.cramfs
+
+IMAGE		= linux-system.axf
+LD_SCRIPT	= model.lds
+
+CROSS_COMPILE	= arm-none-linux-gnueabi-
+
+CC		= $(CROSS_COMPILE)gcc
+AS		= $(CROSS_COMPILE)as
+LD		= $(CROSS_COMPILE)ld
+OBJCOPY		= $(CROSS_COMPILE)objcopy
+
+all: $(IMAGE)
+
+clean:
+	rm -f $(IMAGE)
+
+$(IMAGE): $(BOOTLOADER) $(KERNEL) $(FILESYSTEM) $(LD_SCRIPT)
+	$(LD) -o $@ --script=$(LD_SCRIPT)
+
+boot.bin: boot.o
+	$(OBJCOPY) -O binary -S $< $@
+
+boot.o: boot.S
+	$(AS) -o $@ $<
diff --git a/boot-t2.S b/boot-t2.S
new file mode 100644
index 0000000..ed3d232
--- /dev/null
+++ b/boot-t2.S
@@ -0,0 +1,34 @@
+/*
+ * boot.S - simple register setup code for stand-alone Linux booting
+ *
+ * Copyright (C) 2006 ARM Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+	mov	r0, #0x16000000			@ UART base (Integrator/CP)
+	mov	r1, #0x10			@ ibrd
+	str	r1, [r0, #0x24]
+	mov	r1, #0xc300
+	orr	r1, #0x0001			@ cr
+	str	r1, [r0, #0x30]
+
+	mov	r0, #0
+	mov	r1, #0x13
+	orr	r1, r1, #0x100			@ Integrator/CP
+	mov	r2, #0
+	mov	r3, #0
+	mov	lr, #0x8000
+	orr	lr, lr, #1			@ Thumb mode
+	bx	lr				@ jump to the kernel
diff --git a/boot.S b/boot.S
new file mode 100644
index 0000000..ec8e282
--- /dev/null
+++ b/boot.S
@@ -0,0 +1,33 @@
+/*
+ * boot.S - simple register setup code for stand-alone Linux booting
+ *
+ * Copyright (C) 2006 ARM Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * 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
+ */
+
+	mov	r0, #0x16000000			@ UART base (Integrator/CP)
+	mov	r1, #0x10			@ ibrd
+	str	r1, [r0, #0x24]
+	mov	r1, #0xc300
+	orr	r1, #0x0001			@ cr
+	str	r1, [r0, #0x30]
+
+	mov	r0, #0
+	mov	r1, #0x13
+	orr	r1, r1, #0x100			@ Integrator/CP
+	mov	r2, #0
+	mov	r3, #0
+	mov	lr, #0x8000
+	mov     pc, lr				@ jump to the kernel
diff --git a/model.lds b/model.lds
new file mode 100644
index 0000000..7b68d0b
--- /dev/null
+++ b/model.lds
@@ -0,0 +1,24 @@
+start = 0x00400000;
+
+OUTPUT_FORMAT("elf32-littlearm")
+OUTPUT_ARCH(arm)
+TARGET(binary)
+
+INPUT(./uImage)
+INPUT(./boot.bin)
+INPUT(./base.cramfs)
+
+SECTIONS
+{
+	. = 0x00007fc0;
+	.text.kernel : { ./uImage *(.text) }
+
+	. = 0x00400000;
+	.text.boot : { ./boot.bin *(.text) }
+
+	. = 0x00800000;
+	.text.filesystem : { ./base.cramfs *(.text) }
+
+	.data : { *(.data) }
+	.bss : { *(.bss) }
+}