initial stab at avr32 support

arch/avr32/compile.mk

@@ -0,0 +1,16 @@
+
+$(BUILDDIR)/%.o: %.c $(SRCDEPS)
+	@$(MKDIR)
+	@echo compiling $<
+	$(NOECHO)$(CC) $(CFLAGS) --std=c99 $(INCLUDES) -c $< -MD -MT $@ -MF $(@:%o=%d) -o $@
+
+$(BUILDDIR)/%.o: %.cpp $(SRCDEPS)
+	@$(MKDIR)
+	@echo compiling $<
+	$(NOECHO)$(CC) $(CFLAGS) $(CPPFLAGS) $(INCLUDES) -c $< -MD -MT $@ -MF $(@:%o=%d) -o $@
+
+$(BUILDDIR)/%.o: %.S $(SRCDEPS)
+	@$(MKDIR)
+	@echo compiling $<
+	$(NOECHO)$(CC) $(CFLAGS) $(ASMFLAGS) $(INCLUDES) -c $< -MD -MT $@ -MF $(@:%o=%d) -o $@
+

arch/avr32/include/arch/arch_thread.h

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2009 Travis Geiselbrecht
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef __AVR32_ARCH_THREAD_H
+#define __ARV32_ARCH_THREAD_H
+
+struct arch_thread {
+	vaddr_t sp;
+};
+
+#endif
+

arch/avr32/include/arch/defines.h

@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2009 Travis Geiselbrecht
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef __ARCH_CPU_H
+#define __ARCH_CPU_H
+
+/* avr32 specific stuff */
+#define PAGE_SIZE 4096
+
+#endif
+

arch/avr32/rules.mk

@@ -0,0 +1,62 @@
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+# can override this in local.mk
+ENABLE_THUMB?=true
+
+DEFINES += \
+	AVR32_CPU_$(AVR32_CPU)=1
+
+INCLUDES += \
+	-I$(LOCAL_DIR)/include
+
+BOOTOBJS += \
+	$(LOCAL_DIR)/crt0.o
+
+OBJS += \
+
+#	$(LOCAL_DIR)/arch.Ao \
+	$(LOCAL_DIR)/asm.o \
+	$(LOCAL_DIR)/cache.o \
+	$(LOCAL_DIR)/cache-ops.o \
+	$(LOCAL_DIR)/ops.o \
+	$(LOCAL_DIR)/exceptions.o \
+	$(LOCAL_DIR)/faults.o \
+	$(LOCAL_DIR)/mmu.o \
+	$(LOCAL_DIR)/thread.o \
+	$(LOCAL_DIR)/dcc.o
+
+# set the default toolchain to arm elf and set a #define
+TOOLCHAIN_PREFIX ?= avr32-elf-
+
+# make sure some bits were set up
+MEMVARS_SET := 0
+ifneq ($(MEMBASE),)
+MEMVARS_SET := 1
+endif
+ifneq ($(MEMSIZE),)
+MEMVARS_SET := 1
+endif
+ifeq ($(MEMVARS_SET),0)
+$(error missing MEMBASE or MEMSIZE variable, please set in target rules.mk)
+endif
+
+LIBGCC := $(shell $(TOOLCHAIN_PREFIX)gcc $(CFLAGS) $(THUMBCFLAGS) -print-libgcc-file-name)
+#$(info LIBGCC = $(LIBGCC))
+
+# potentially generated files that should be cleaned out with clean make rule
+GENERATED += \
+	$(BUILDDIR)/system-onesegment.ld \
+	$(BUILDDIR)/system-twosegment.ld
+
+# rules for generating the linker scripts
+
+$(BUILDDIR)/system-onesegment.ld: $(LOCAL_DIR)/system-onesegment.ld
+	@echo generating $@
+	@$(MKDIR)
+	$(NOECHO)sed "s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/" < $< > $@
+
+$(BUILDDIR)/system-twosegment.ld: $(LOCAL_DIR)/system-twosegment.ld
+	@echo generating $@
+	@$(MKDIR)
+	$(NOECHO)sed "s/%ROMBASE%/$(ROMBASE)/;s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/" < $< > $@
+

arch/avr32/system-onesegment.ld

@@ -0,0 +1,83 @@
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+
+ENTRY(_start)
+SECTIONS
+{
+	. = %MEMBASE%;
+
+	/* text/read-only data */
+	.text.boot : { *(.text.boot) }
+	.text :	{ *(.text .text.* .glue_7* .gnu.linkonce.t.*) } =0x9090
+
+	.interp : { *(.interp) }
+	.hash : { *(.hash) }
+	.dynsym : { *(.dynsym) }
+	.dynstr : { *(.dynstr) }
+	.rel.text : { *(.rel.text) *(.rel.gnu.linkonce.t*) }
+	.rela.text : { *(.rela.text) *(.rela.gnu.linkonce.t*) }
+	.rel.data : { *(.rel.data) *(.rel.gnu.linkonce.d*) }
+	.rela.data : { *(.rela.data) *(.rela.gnu.linkonce.d*) }
+	.rel.rodata : { *(.rel.rodata) *(.rel.gnu.linkonce.r*) }
+	.rela.rodata : { *(.rela.rodata) *(.rela.gnu.linkonce.r*) }
+	.rel.got : { *(.rel.got) }
+	.rela.got : { *(.rela.got) }
+	.rel.ctors : { *(.rel.ctors) }
+	.rela.ctors : { *(.rela.ctors) }
+	.rel.dtors : { *(.rel.dtors) }
+	.rela.dtors : { *(.rela.dtors) }
+	.rel.init : { *(.rel.init) }
+	.rela.init : { *(.rela.init) }
+	.rel.fini : { *(.rel.fini) }
+	.rela.fini : { *(.rela.fini) }
+	.rel.bss : { *(.rel.bss) }
+	.rela.bss : { *(.rela.bss) }
+	.rel.plt : { *(.rel.plt) }
+	.rela.plt : { *(.rela.plt) }
+	.init : { *(.init) } =0x9090
+	.plt : { *(.plt) }
+
+	.rodata : { 
+		*(.rodata .rodata.* .gnu.linkonce.r.*)
+		. = ALIGN(4);
+		__commands_start = .;
+		KEEP (*(.commands))
+		__commands_end = .;
+		. = ALIGN(4);
+		__apps_start = .;
+		KEEP (*(.apps))
+		__apps_end = .;
+		. = ALIGN(4); 
+		__rodata_end = . ;		
+	}
+
+	/* writable data  */
+	__data_start_rom = .;	/* in one segment binaries, the rom data address is on top of the ram data address */
+	__data_start = .;
+	.data : SUBALIGN(4) { *(.data .data.* .gnu.linkonce.d.*) }
+
+	__ctor_list = .;
+	.ctors : { *(.ctors) }
+	__ctor_end = .;
+	__dtor_list = .;
+	.dtors : { *(.dtors) }
+	__dtor_end = .;
+	.got : { *(.got.plt) *(.got) }
+	.dynamic : { *(.dynamic) }
+
+	__data_end = .;
+
+	/* unintialized data (in same segment as writable data) */
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss : { *(.bss .bss.*) }
+
+	. = ALIGN(4); 
+	_end = .;
+
+	. = %MEMBASE% + %MEMSIZE%;
+	_end_of_ram = .;
+
+	/* Strip unnecessary stuff */
+	/DISCARD/ : { *(.comment .note .eh_frame) }
+}

include/endian.h

@@ -40,6 +40,10 @@
 #define BYTE_ORDER LITTLE_ENDIAN
 #endif
 
+#if defined(ARCH_AVR32)
+#define BYTE_ORDER BIG_ENDIAN
+#endif
+
 #if defined(__i386__) || defined(_X86_)
 #define BYTE_ORDER LITTLE_ENDIAN
 #endif

lib/libc/string/arch/avr32/rules.mk

@@ -0,0 +1,9 @@
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+ASM_STRING_OPS := 
+
+OBJS += \
+
+# filter out the C implementation
+C_STRING_OPS := $(filter-out $(ASM_STRING_OPS),$(C_STRING_OPS))
+

platform/at32ap7/rules.mk

@@ -0,0 +1,26 @@
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+ARCH := avr32
+CPU := generic
+
+MODULES += \
+	lib/cbuf
+
+INCLUDES += \
+	-I$(LOCAL_DIR)/include
+
+OBJS += \
+	$(LOCAL_DIR)/debug.o \
+	$(LOCAL_DIR)/interrupts.o \
+	$(LOCAL_DIR)/platform.o \
+	$(LOCAL_DIR)/timer.o
+
+
+#	$(LOCAL_DIR)/console.o \
+
+MEMBASE := 0x00000000
+#MEMSIZE := 0x02000000	# 32MB
+
+LINKER_SCRIPT += \
+	$(BUILDDIR)/system-onesegment.ld
+

project/ngw100-test.mk

@@ -0,0 +1,10 @@
+# top level project rules for the armemu-test project
+#
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+TARGET := ngw100
+MODULES += \
+	app/tests \
+	app/stringtests \
+	app/shell
+

target/ngw100/rules.mk

@@ -0,0 +1,14 @@
+LOCAL_DIR := $(GET_LOCAL_DIR)
+
+PLATFORM := at32ap7
+
+MODULES += 
+
+OBJS += \
+	$(LOCAL_DIR)/init.o
+
+MEMSIZE := 0x02000000	# 32MB
+
+DEFINES += \
+	SDRAM_SIZE=$(MEMSIZE)
+