diff --git a/src/arch/aarch64/Kconfig b/src/arch/aarch64/Kconfig new file mode 100644 index 0000000000..0b17bec7f7 --- /dev/null +++ b/src/arch/aarch64/Kconfig @@ -0,0 +1,29 @@ +menu "Architecture (aarch64)" + +config ARM_AARCH64_OPTIONS + bool + default y +# select HAVE_ARCH_MEMSET +# select HAVE_ARCH_MEMCPY +# select HAVE_ARCH_MEMMOVE + +# Maximum reboot count +# TODO: Improve description. +config MAX_REBOOT_CNT + int + default 3 + +config BOOTBLOCK_SOURCE + string + default "bootblock_simple.c" + +config UPDATE_IMAGE + bool "Update existing coreboot.rom image" + default n + help + If this option is enabled, no new coreboot.rom file + is created. Instead it is expected that there already + is a suitable file for further processing. + The bootblock will not be modified. + +endmenu diff --git a/src/arch/aarch64/Makefile.inc b/src/arch/aarch64/Makefile.inc new file mode 100644 index 0000000000..44c516e9bf --- /dev/null +++ b/src/arch/aarch64/Makefile.inc @@ -0,0 +1,266 @@ +################################################################################ +## +## This file is part of the coreboot project. +## +## Copyright (C) 2012 The ChromiumOS Authors +### Copyright (C) 2012 Alexandru Gagniuc +## Copyright (C) 2009-2010 coresystems GmbH +## Copyright (C) 2009 Ronald G. Minnich +## +## 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; version 2 of the License. +## +## 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +## +################################################################################ + +################################################################################ +# Build the final rom image +COREBOOT_ROM_DEPENDENCIES:= +ifeq ($(CONFIG_PAYLOAD_ELF),y) +COREBOOT_ROM_DEPENDENCIES+=$(CONFIG_PAYLOAD_FILE) +endif + +extract_nth=$(word $(1), $(subst |, ,$(2))) + +ifneq ($(CONFIG_UPDATE_IMAGE),y) +prebuild-files = \ + $(foreach file,$(cbfs-files), \ + $(CBFSTOOL) $@.tmp \ + add$(if $(filter stage,$(call extract_nth,3,$(file))),-stage)$(if $(filter payload,$(call extract_nth,3,$(file))),-payload) \ + -f $(call extract_nth,1,$(file)) \ + -n $(call extract_nth,2,$(file)) $(if $(filter-out stage,$(call extract_nth,3,$(file))),-t $(call extract_nth,3,$(file))) \ + $(if $(call extract_nth,4,$(file)),-b $(call extract_nth,4,$(file))) &&) +prebuilt-files = $(foreach file,$(cbfs-files), $(call extract_nth,1,$(file))) + +# TODO Change -b to Kconfig variable. +$(obj)/coreboot.pre: $(objcbfs)/bootblock.bin $(objcbfs)/romstage.elf $$(prebuilt-files) $(CBFSTOOL) $$(cpu_ucode_cbfs_file) + $(CBFSTOOL) $@.tmp create -m aarch64 -s $(CONFIG_COREBOOT_ROMSIZE_KB)K \ + -B $(objcbfs)/bootblock.bin -a 64 \ + -b $(CONFIG_BOOTBLOCK_ROM_OFFSET) \ + -H $(CONFIG_CBFS_HEADER_ROM_OFFSET) \ + -o $(CONFIG_CBFS_ROM_OFFSET) + @printf " CBFS $(subst $(obj)/,,$(@))\n" + $(CBFSTOOL) $@.tmp add-stage \ + -f $(objcbfs)/romstage.elf -b 0 \ + -n $(CONFIG_CBFS_PREFIX)/romstage -c none + $(prebuild-files) true + $(call add-cpu-microcode-to-cbfs,$@.tmp) + mv $@.tmp $@ +else +.PHONY: $(obj)/coreboot.pre +$(obj)/coreboot.pre: $(CBFSTOOL) + mv $(obj)/coreboot.rom $@ +endif + +$(obj)/coreboot.rom: $(obj)/coreboot.pre $(objcbfs)/coreboot_ram.elf $(CBFSTOOL) $(call strip_quotes,$(COREBOOT_ROM_DEPENDENCIES)) $$(INTERMEDIATE) + @printf " CBFS $(subst $(obj)/,,$(@))\n" + cp $(obj)/coreboot.pre $@.tmp + $(CBFSTOOL) $@.tmp add-stage -f $(objcbfs)/coreboot_ram.elf -n $(CONFIG_CBFS_PREFIX)/coreboot_ram -c $(CBFS_COMPRESS_FLAG) +ifeq ($(CONFIG_PAYLOAD_NONE),y) + @printf " PAYLOAD none (as specified by user)\n" +endif +ifeq ($(CONFIG_PAYLOAD_ELF),y) + @printf " PAYLOAD $(CONFIG_PAYLOAD_FILE) (compression: $(CBFS_PAYLOAD_COMPRESS_NAME))\n" + $(CBFSTOOL) $@.tmp add-payload -f $(CONFIG_PAYLOAD_FILE) -n $(CONFIG_CBFS_PREFIX)/payload -c $(CBFS_PAYLOAD_COMPRESS_FLAG) +endif +ifeq ($(CONFIG_INCLUDE_CONFIG_FILE),y) + @printf " CONFIG $(DOTCONFIG)\n" + if [ -f $(DOTCONFIG) ]; then \ + echo "# This image was built using git revision" `git rev-parse HEAD` > $(obj)/config.tmp ; \ + sed -e '/^#/d' -e '/^ *$$/d' $(DOTCONFIG) >> $(obj)/config.tmp ; \ + $(CBFSTOOL) $@.tmp add -f $(obj)/config.tmp -n config -t raw; rm -f $(obj)/config.tmp ; fi +endif + mv $@.tmp $@ + @printf " CBFSPRINT $(subst $(obj)/,,$(@))\n\n" + $(CBFSTOOL) $@ print + +bootsplash.jpg-file := $(call strip_quotes,$(CONFIG_BOOTSPLASH_FILE)) +bootsplash.jpg-type := bootsplash + +################################################################################ +# aarch64 specific tools + +################################################################################ +# Common recipes for all stages + +$(objcbfs)/%.bin: $(objcbfs)/%.elf + @printf " OBJCOPY $(subst $(obj)/,,$(@))\n" + $(OBJCOPY) -O binary $< $@ + +$(objcbfs)/%.elf: $(objcbfs)/%.debug + @printf " OBJCOPY $(subst $(obj)/,,$(@))\n" + cp $< $@.tmp + $(NM) -n $@.tmp | sort > $(basename $@).map + $(OBJCOPY) --strip-debug $@.tmp + $(OBJCOPY) --add-gnu-debuglink=$< $@.tmp + mv $@.tmp $@ + +stages_c = $(src)/arch/aarch64/stages.c +stages_o = $(obj)/arch/aarch64/stages.o + +$(stages_o): $(stages_c) $(obj)/config.h + @printf " CC $(subst $(obj)/,,$(@))\n" + $(CC) -I. $(INCLUDES) -c -o $@ $< + + +################################################################################ +# Build the coreboot_ram (stage 2) + +$(objcbfs)/coreboot_ram.debug: $(objgenerated)/coreboot_ram.o $(src)/arch/aarch64/coreboot_ram.ld + @printf " CC $(subst $(obj)/,,$(@))\n" +ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) + $(LD) -m armelf_linux_eabi -o $@ -L$(obj) $< -T $(src)/arch/aarch64/coreboot_ram.ld +else + $(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(src)/arch/aarch64/coreboot_ram.ld $< +endif + +$(objgenerated)/coreboot_ram.o: $(stages_o) $$(ramstage-objs) $(LIBGCC_FILE_NAME) + @printf " CC $(subst $(obj)/,,$(@))\n" +ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) + $(LD) -m -m armelf_linux_eabi -r -o $@ --wrap __divdi3 --wrap __udivdi3 --wrap __moddi3 --wrap __umoddi3 --wrap __uidiv --start-group $(ramstage-objs) $(LIBGCC_FILE_NAME) --end-group +else + $(CC) $(CFLAGS) -nostdlib -r -o $@ -Wl,--start-group $(stages_o) $(ramstage-objs) $(LIBGCC_FILE_NAME) -Wl,--end-group +endif + +CFLAGS += \ + +ldscripts = +ldscripts += $(src)/arch/aarch64/romstage.ld + +#crt0s += $(src)/cpu/arm/fpu_enable.inc + +crt0s += $(cpu_incs) +crt0s += $(cpu_incs-y) + +$(obj)/mainboard/$(MAINBOARDDIR)/romstage.pre.inc: $(src)/mainboard/$(MAINBOARDDIR)/romstage.c $(OPTION_TABLE_H) $(obj)/build.h $(obj)/config.h + @printf " CC romstage.inc\n" + $(CC) -MMD $(CFLAGS) -D__PRE_RAM__ -I$(src) -I. -I$(obj) -c -S $< -o $@ + +# Things that appear in every board +ramstage-y += exception.c +#ramstage-y += exception_asm.S + +#bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += early_console.c +#bootblock-y += cache.c + +#romstage-y += cache.c +#romstage-y += div0.c +#romstage-$(CONFIG_EARLY_CONSOLE) += early_console.c + +#ramstage-y += div0.c +#ramstage-y += interrupts.c +#ramstage-y += cache.c +#ramstage-y += mmu.c + +#romstage-y += eabi_compat.c +#ramstage-y += eabi_compat.c +#bootblock-y += eabi_compat.c + +ramstage-y += boot.c +ramstage-y += tables.c + +#romstage-y += memset.S +#ramstage-y += memset.S +#bootblock-y += memset.S +#romstage-y += memcpy.S +#ramstage-y += memcpy.S +#bootblock-y += memcpy.S +#romstage-y += memmove.S +#ramstage-y += memmove.S +#bootblock-y += memmove.S + +$(obj)/arch/aarch64/coreboot_table.ramstage.o : $(OPTION_TABLE_H) + +romstage-srcs += $(objgenerated)/crt0.s +#ramstage-srcs += $(wildcard src/mainboard/$(MAINBOARDDIR)/mainboard.c) + +ifeq ($(CONFIG_BOARD_HAS_HARD_RESET),y) +#ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/reset.c +endif + +ifeq ($(CONFIG_HAVE_BUS_CONFIG),y) +#ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/get_bus_conf.c +endif + +################################################################################ +# Build the bootblock + +bootblock_lds = $(src)/arch/aarch64/bootblock.lds +bootblock_lds += $(chipset_bootblock_lds) + +bootblock_inc += $(src)/arch/aarch64/bootblock.inc +bootblock_inc += $(chipset_bootblock_inc) +bootblock_inc += $(objgenerated)/bootblock.inc + +bootblock_custom = $(src)/$(call strip_quotes,$(CONFIG_BOOTBLOCK_CPU_INIT)) +bootblock_custom += $(src)/$(call strip_quotes,$(CONFIG_BOOTBLOCK_MAINBOARD_INIT)) + +$(objgenerated)/bootblock.ld: $$(bootblock_lds) $(obj)/ldoptions + @printf " GEN $(subst $(obj)/,,$(@))\n" + printf '$(foreach ldscript,ldoptions $(bootblock_lds),INCLUDE "$(ldscript)"\n)' > $@ + +$(objgenerated)/bootblock_inc.S: $$(bootblock_inc) + @printf " GEN $(subst $(obj)/,,$(@))\n" + printf '$(foreach crt0,$(bootblock_inc),#include "$(crt0)"\n)' > $@ + +$(objgenerated)/bootblock.o: $(objgenerated)/bootblock.s + @printf " CC $(subst $(obj)/,,$(@))\n" + $(CC) $(bootblock-S-ccopts) -Wa,-acdlns -c -o $@ $< > $(basename $@).disasm + +$(objgenerated)/bootblock.s: $(objgenerated)/bootblock_inc.S $(obj)/config.h $(obj)/build.h + @printf " CC $(subst $(obj)/,,$(@))\n" + $(CC) $(bootblock-S-ccopts) -MMD -x assembler-with-cpp -E -I$(src)/include -I$(src)/arch/aarch64/include -I$(obj) -include $(obj)/build.h -include $(obj)/config.h -I. -I$(src) $< -o $@ + +$(objgenerated)/bootblock.inc: $(src)/arch/aarch64/$(subst ",,$(CONFIG_BOOTBLOCK_SOURCE)) $(bootblock_custom) $(OPTION_TABLE_H) $(obj)/config.h + @printf " CC $(subst $(obj)/,,$(@))\n" + $(CC) $(bootblock-c-ccopts) $(INCLUDES) -MM \ + -MT$(objgenerated)/bootblock.inc \ + $< > $(objgenerated)/bootblock.inc.d + $(CC) $(bootblock-c-ccopts) -c -S $(CFLAGS) -I. $(INCLUDES) $< -o $@ + +$(objcbfs)/bootblock.debug: $(objgenerated)/bootblock.o $(objgenerated)/bootblock.ld $$(bootblock-objs) $(stages) $(obj)/config.h + @printf " LINK $(subst $(obj)/,,$(@))\n" +ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) + $(LD) -m armelf_linux_eabi -include $(obj)/config.h -static -o $@.tmp -L$(obj) $< -T $(objgenerated)/bootblock.ld +else + $(CC) -nostdlib -nostartfiles -include $(obj)/config.h -static -o $@ -L$(obj) -T $(objgenerated)/bootblock.ld -Wl,--start-group $(objgenerated)/bootblock.o $(bootblock-objs) $(stages) $(LIBGCC_FILE_NAME) -Wl,--end-group +endif + +################################################################################ +# Build the romstage + +$(objcbfs)/romstage.debug: $$(romstage-objs) $(stages_o) $(objgenerated)/romstage.ld + @printf " LINK $(subst $(obj)/,,$(@))\n" +ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y) + $(LD) -nostdlib -nostartfiles -static -o $@ -L$(obj) $(romstage-objs) -T $(objgenerated)/romstage.ld +else + $(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage.ld -Wl,--start-group $(romstage-objs) $(stages_o) $(LIBGCC_FILE_NAME) -Wl,--end-group +endif + +$(objgenerated)/romstage.ld: $$(ldscripts) $(obj)/ldoptions + @printf " GEN $(subst $(obj)/,,$(@))\n" + rm -f $@ + printf '$(foreach ldscript,ldoptions $(ldscripts),INCLUDE "$(ldscript:$(obj)/%=%)"\n)' >> $@.tmp + mv $@.tmp $@ + +$(objgenerated)/crt0.romstage.S: $$(crt0s) + @printf " GEN $(subst $(obj)/,,$(@))\n" + printf '$(foreach crt0,$(crt0s),#include "$(crt0:$(obj)/%=%)"\n)' > $@ + +$(objgenerated)/crt0.romstage.o: $(objgenerated)/crt0.s + @printf " CC $(subst $(obj)/,,$(@))\n" + $(CC) -Wa,-acdlns -c -o $@ $< > $(basename $@).disasm + +$(objgenerated)/crt0.s: $(objgenerated)/crt0.romstage.S $(obj)/config.h $(obj)/build.h + @printf " CC $(subst $(obj)/,,$(@))\n" + $(CC) -MMD -x assembler-with-cpp -E -I$(src)/include -I$(src)/arch/aarch64/include -I$(obj) -include $(obj)/config.h -include $(obj)/build.h -I. -I$(src) $< -o $@ + diff --git a/src/arch/aarch64/boot.c b/src/arch/aarch64/boot.c new file mode 100644 index 0000000000..677480230b --- /dev/null +++ b/src/arch/aarch64/boot.c @@ -0,0 +1,27 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include + +void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size) +{ + printk(BIOS_SPEW, "entry = %p\n", entry); + stage_exit(entry); +} diff --git a/src/arch/aarch64/bootblock.inc b/src/arch/aarch64/bootblock.inc new file mode 100644 index 0000000000..dfa0fc9c15 --- /dev/null +++ b/src/arch/aarch64/bootblock.inc @@ -0,0 +1,66 @@ +/* + * Early initialization code for aarch64 (a.k.a. armv8) + * + * Copyright 2013 Google Inc. + * + * 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; version 2 of + * the License. + * + * 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 + */ + +.section ".start", "a", %progbits +.globl _start +_start: b reset + .balignl 16,0xdeadbeef + +_cbfs_master_header: + /* The CBFS master header is inserted by cbfstool at the first + * aligned offset after the above anchor string is found. + * Hence, we leave some space for it. + * Assumes 64-byte alignment. + */ + .skip 128 + +reset: + /* + * Set the cpu to SVC32 mode and unmask aborts. Aborts might happen + * before logging is turned on and may crash the machine, but at least + * the problem will show up near the code that causes it. + */ + b reset + +.align 3 +.Stack: + .word CONFIG_STACK_TOP +.align 3 +.Stack_size: + .word CONFIG_STACK_SIZE + .section ".id", "a", %progbits + + .globl __id_start +__id_start: +ver: + .asciz COREBOOT_VERSION +vendor: + .asciz CONFIG_MAINBOARD_VENDOR +part: + .asciz CONFIG_MAINBOARD_PART_NUMBER +.long __id_end - ver /* Reverse offset to the vendor id */ +.long __id_end - vendor /* Reverse offset to the vendor id */ +.long __id_end - part /* Reverse offset to the part number */ +.long CONFIG_ROM_SIZE /* Size of this romimage */ + .globl __id_end + +__id_end: +.previous diff --git a/src/arch/aarch64/bootblock.lds b/src/arch/aarch64/bootblock.lds new file mode 100644 index 0000000000..2f7532c849 --- /dev/null +++ b/src/arch/aarch64/bootblock.lds @@ -0,0 +1,55 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2006 Advanced Micro Devices, Inc. + * Copyright (C) 2008-2010 coresystems GmbH + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +OUTPUT_FORMAT("elf64-littleaarch64", "elf64-littleaarch64", "elf64-littleaarch64") +OUTPUT_ARCH(aarch64) + +PHDRS +{ + to_load PT_LOAD; +} + +TARGET(binary) +SECTIONS +{ + ROMLOC = CONFIG_BOOTBLOCK_BASE; + + /* This section might be better named .setup */ + .rom ROMLOC : { + _rom = .; + *(.start); + *(.id); + *(.text); + *(.text.*); + *(.rom.text); + *(.rom.data); + *(.rom.data.*); + *(.rodata.*); + _erom = .; + } : to_load = 0xff + + /DISCARD/ : { + *(.comment) + *(.note) + *(.comment.*) + *(.note.*) + *(.ARM.*) + } +} diff --git a/src/arch/aarch64/bootblock_simple.c b/src/arch/aarch64/bootblock_simple.c new file mode 100644 index 0000000000..b27992884f --- /dev/null +++ b/src/arch/aarch64/bootblock_simple.c @@ -0,0 +1,75 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2010 Google Inc. + * + * 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; version 2 of + * the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include +//#include +#include +#include +#include +#include + +//#include "stages.c" + +static int boot_cpu(void) +{ + /* + * FIXME: This is a stub for now. All non-boot CPUs should be + * waiting for an interrupt. We could move the chunk of assembly + * which puts them to sleep in here... + */ + return 1; +} + +void main(void) +{ + const char *stage_name = "fallback/romstage"; + void *entry = NULL; + + /* Globally disable MMU, caches, and branch prediction (these should + * be disabled by default on reset) */ + + /* + * Re-enable icache and branch prediction. MMU and dcache will be + * set up later. + * + * Note: If booting from USB, we need to disable branch prediction + * before copying from USB into RAM (FIXME: why?) + */ + + if (boot_cpu()) { + //bootblock_cpu_init(); + //bootblock_mainboard_init(); + } + +#ifdef CONFIG_BOOTBLOCK_CONSOLE + console_init(); +#endif + +#if 0 + entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, stage_name); + +#endif + printk(BIOS_SPEW, "stage_name %s, entry %p\n", stage_name, entry); +#if 0 + if (entry) stage_exit(entry); + hlt(); +#endif +} diff --git a/src/arch/aarch64/coreboot_ram.ld b/src/arch/aarch64/coreboot_ram.ld new file mode 100644 index 0000000000..5345bfc98b --- /dev/null +++ b/src/arch/aarch64/coreboot_ram.ld @@ -0,0 +1,136 @@ +/* + * Memory map: + * + * CONFIG_RAMBASE : text segment + * : rodata segment + * : data segment + * : bss segment + * : stack + * : heap + */ +/* + * Copyright 2013 Google Inc. + * Bootstrap code for the STPC Consumer + * Copyright (c) 1999 by Net Insight AB. All Rights Reserved. + */ + +/* + * Written by Johan Rydberg, based on work by Daniel Kahlin. + * Rewritten by Eric Biederman + * 2005.12 yhlu add coreboot_ram cross the vga font buffer handling + */ + +/* We use ELF as output format. So that we can debug the code in some form. */ +INCLUDE ldoptions + +ENTRY(stage_entry) + +PHDRS +{ + to_load PT_LOAD; +} + +SECTIONS +{ + . = CONFIG_SYS_SDRAM_BASE; + /* First we place the code and read only data (typically const declared). + * This could theoretically be placed in rom. + */ + .text : { + _text = .; + _start = .; + *(.text.stage_entry.aarch64); + *(.text); + *(.text.*); + . = ALIGN(16); + _etext = .; + } : to_load + + .ctors : { + . = ALIGN(0x100); + __CTOR_LIST__ = .; + *(.ctors); + LONG(0); + __CTOR_END__ = .; + } + + .rodata : { + _rodata = .; + . = ALIGN(4); + console_drivers = .; + *(.rodata.console_drivers) + econsole_drivers = . ; + . = ALIGN(4); + pci_drivers = . ; + *(.rodata.pci_driver) + epci_drivers = . ; + cpu_drivers = . ; + *(.rodata.cpu_driver) + ecpu_drivers = . ; + _bs_init_begin = .; + *(.bs_init) + _bs_init_end = .; + *(.rodata) + *(.rodata.*) + /* kevinh/Ispiri - Added an align, because the objcopy tool + * incorrectly converts sections that are not long word aligned. + */ + . = ALIGN(4); + + _erodata = .; + } + /* After the code we place initialized data (typically initialized + * global variables). This gets copied into ram by startup code. + * __data_start and __data_end shows where in ram this should be placed, + * whereas __data_loadstart and __data_loadend shows where in rom to + * copy from. + */ + .data : { + _data = .; + *(.data) + _edata = .; + } + + /* bss does not contain data, it is just a space that should be zero + * initialized on startup. (typically uninitialized global variables) + * crt0.S fills between _bss and _ebss with zeroes. + */ + _bss = .; + .bss . : { + *(.bss) + *(.sbss) + *(COMMON) + } + _ebss = .; + _end = .; + + /* coreboot really "ends" here. Only heap and stack are placed after + * this line. + */ + + _heap = .; + .heap . : { + /* Reserve CONFIG_HEAP_SIZE bytes for the heap */ + . = CONFIG_HEAP_SIZE ; + . = ALIGN(4); + } + _eheap = .; + + _stack = CONFIG_STACK_BOTTOM; + _estack = CONFIG_STACK_TOP; + + /* The ram segment. This includes all memory used by the memory + * resident copy of coreboot, except the tables that are produced on + * the fly, but including stack and heap. + */ + _ram_seg = _text; + _eram_seg = _eheap; + + /* Discard the sections we don't need/want */ + + /DISCARD/ : { + *(.comment) + *(.note) + *(.note.*) + } +} diff --git a/src/arch/aarch64/exception.c b/src/arch/aarch64/exception.c new file mode 100644 index 0000000000..db95de247d --- /dev/null +++ b/src/arch/aarch64/exception.c @@ -0,0 +1,130 @@ +/* + * This file is part of the libpayload project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include +#include +#include + +void exception_test(void); + +static int test_abort; + +void exception_undefined_instruction(uint32_t *); +void exception_software_interrupt(uint32_t *); +void exception_prefetch_abort(uint32_t *); +void exception_data_abort(uint32_t *); +void exception_not_used(uint32_t *); +void exception_irq(uint32_t *); +void exception_fiq(uint32_t *); + +static void print_regs(uint32_t *regs) +{ + int i; + // XXX + for (i = 0; i < 16; i++) { + if (i == 15) + printk(BIOS_ERR, "PC"); + else if (i == 14) + continue; /* LR */ + else if (i == 13) + continue; /* SP */ + else if (i == 12) + printk(BIOS_ERR, "IP"); + else + printk(BIOS_ERR, "R%d", i); + printk(BIOS_ERR, " = 0x%08x\n", regs[i]); + } +} + +void exception_undefined_instruction(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _undefined_instruction\n"); + print_regs(regs); + die("exception"); +} + +void exception_software_interrupt(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _software_interrupt\n"); + print_regs(regs); + die("exception"); +} + +void exception_prefetch_abort(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _prefetch_abort\n"); + print_regs(regs); + die("exception"); +} + +void exception_data_abort(uint32_t *regs) +{ + if (test_abort) { + regs[15] = regs[0]; + return; + } else { + printk(BIOS_ERR, "exception _data_abort\n"); + print_regs(regs); + } + die("exception"); +} + +void exception_not_used(uint32_t *regs) +{ + printk(BIOS_ERR, "exception _not_used\n"); + print_regs(regs); + die("exception"); +} + +void exception_irq(uint32_t *regs) +{ +} + +void exception_fiq(uint32_t *regs) +{ +} + +static inline uint32_t get_sctlr(void) +{ + return 0; +} + +static inline void set_sctlr(uint32_t val) +{ +} + +void exception_init(void) +{ + test_abort = 1; + printk(BIOS_ERR, "Testing exceptions\n"); + //exception_test(); + //test_abort = 0; + printk(BIOS_ERR, "Testing exceptions: DONE\n"); + +} diff --git a/src/arch/aarch64/id.inc b/src/arch/aarch64/id.inc new file mode 100644 index 0000000000..ffe547d748 --- /dev/null +++ b/src/arch/aarch64/id.inc @@ -0,0 +1,18 @@ + .section ".id", "a", %progbits + + .globl __id_start +__id_start: +ver: + .asciz COREBOOT_VERSION +vendor: + .asciz CONFIG_MAINBOARD_VENDOR +part: + .asciz CONFIG_MAINBOARD_PART_NUMBER +.long __id_end - ver /* Reverse offset to the vendor id */ +.long __id_end - vendor /* Reverse offset to the vendor id */ +.long __id_end - part /* Reverse offset to the part number */ +.long CONFIG_ROM_SIZE /* Size of this romimage */ + .globl __id_end + +__id_end: +.previous diff --git a/src/arch/aarch64/include/arch/barrier.h b/src/arch/aarch64/include/arch/barrier.h new file mode 100644 index 0000000000..dfcf5a5268 --- /dev/null +++ b/src/arch/aarch64/include/arch/barrier.h @@ -0,0 +1,52 @@ +/* + * Based on arch/arm/include/asm/barrier.h + * + * Copyright (C) 2012 ARM Ltd. + * + * 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, see . + */ +#ifndef __ASM_ARM_BARRIER_H +#define __ASM_ARM_BARRIER_H + +#ifndef __ASSEMBLY__ + +#define sev() asm volatile("sev" : : : "memory") +#define wfe() asm volatile("wfe" : : : "memory") +#define wfi() asm volatile("wfi" : : : "memory") + +#define isb() asm volatile("isb" : : : "memory") +#define dsb() asm volatile("dsb sy" : : : "memory") + +#define mb() dsb() +#define rmb() asm volatile("dsb ld" : : : "memory") +#define wmb() asm volatile("dsb st" : : : "memory") + +#ifndef CONFIG_SMP +#define smp_mb() barrier() +#define smp_rmb() barrier() +#define smp_wmb() barrier() +#else +#define smp_mb() asm volatile("dmb ish" : : : "memory") +#define smp_rmb() asm volatile("dmb ishld" : : : "memory") +#define smp_wmb() asm volatile("dmb ishst" : : : "memory") +#endif + +#define read_barrier_depends() do { } while(0) +#define smp_read_barrier_depends() do { } while(0) + +#define set_mb(var, value) do { var = value; smp_mb(); } while (0) +#define nop() asm volatile("nop"); + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_ARM_BARRIER_H */ diff --git a/src/arch/aarch64/include/arch/boot/boot.h b/src/arch/aarch64/include/arch/boot/boot.h new file mode 100644 index 0000000000..2051d9a83f --- /dev/null +++ b/src/arch/aarch64/include/arch/boot/boot.h @@ -0,0 +1,8 @@ +#ifndef ASM_ARM_BOOT_H +#define ASM_ARM_BOOT_H + +#define ELF_CLASS ELFCLASS64 +#define ELF_DATA ELFDATA2LSB +#define ELF_ARCH EM_AARCH64 + +#endif /* ASM_ARM_BOOT_H */ diff --git a/src/arch/aarch64/include/arch/byteorder.h b/src/arch/aarch64/include/arch/byteorder.h new file mode 100644 index 0000000000..8dc069f486 --- /dev/null +++ b/src/arch/aarch64/include/arch/byteorder.h @@ -0,0 +1,27 @@ +#ifndef _BYTEORDER_H +#define _BYTEORDER_H + +#define __LITTLE_ENDIAN 1234 + +#include +#include + +#define cpu_to_le64(x) ((uint64_t)(x)) +#define le64_to_cpu(x) ((uint64_t)(x)) +#define cpu_to_le32(x) ((uint32_t)(x)) +#define le32_to_cpu(x) ((uint32_t)(x)) +#define cpu_to_le16(x) ((uint16_t)(x)) +#define le16_to_cpu(x) ((uint16_t)(x)) +#define cpu_to_be64(x) swab64(x) +#define be64_to_cpu(x) swab64(x) +#define cpu_to_be32(x) swab32((x)) +#define be32_to_cpu(x) swab32((x)) +#define cpu_to_be16(x) swab16((x)) +#define be16_to_cpu(x) swab16((x)) + +#define ntohll(x) be64_to_cpu(x) +#define htonll(x) cpu_to_be64(x) +#define ntohl(x) be32_to_cpu(x) +#define htonl(x) cpu_to_be32(x) + +#endif /* _BYTEORDER_H */ diff --git a/src/arch/aarch64/include/arch/cpu.h b/src/arch/aarch64/include/arch/cpu.h new file mode 100644 index 0000000000..f8b3005e95 --- /dev/null +++ b/src/arch/aarch64/include/arch/cpu.h @@ -0,0 +1,51 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2012 Google Inc. + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#ifndef __ARCH_CPU_H__ +#define __ARCH_CPU_H__ + +#define asmlinkage + +#if !defined(__PRE_RAM__) +#include + +struct cpu_driver { + struct device_operations *ops; + struct cpu_device_id *id_table; +}; + +struct thread; + +struct cpu_info { + device_t cpu; + unsigned long index; +#if CONFIG_COOP_MULTITASKING + struct thread *thread; +#endif +}; + +struct cpuinfo_arm { + uint8_t arm; /* CPU family */ + uint8_t arm_vendor; /* CPU vendor */ + uint8_t arm_model; +}; + +#endif + +#endif /* __ARCH_CPU_H__ */ diff --git a/src/arch/aarch64/include/arch/early_variables.h b/src/arch/aarch64/include/arch/early_variables.h new file mode 100644 index 0000000000..90ead9d44b --- /dev/null +++ b/src/arch/aarch64/include/arch/early_variables.h @@ -0,0 +1,59 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved. + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA + */ + +#ifndef ARCH_EARLY_VARIABLES_H +#define ARCH_EARLY_VARIABLES_H + +#ifdef __PRE_RAM__ +#define CAR_GLOBAL __attribute__((section(".car.global_data,\"w\",%nobits@"))) +#define CAR_CBMEM __attribute__((section(".car.cbmem_console,\"w\",%nobits@"))) +#else +#define CAR_GLOBAL +#define CAR_CBMEM +#endif + +#if defined(__PRE_RAM__) +#define CAR_MIGRATE_ATTR __attribute__ ((used,section (".car.migrate"))) + +/* Call migrate_fn_() when CAR globals are migrated. */ +#define CAR_MIGRATE(migrate_fn_) \ + static void (* const migrate_fn_ ## _ptr)(void) CAR_MIGRATE_ATTR = \ + migrate_fn_; + +/* Get the correct pointer for the CAR global variable. */ +void *car_get_var_ptr(void *var); + +/* Get and set a primitive type global variable. */ +#define car_get_var(var) \ + *(typeof(var) *)car_get_var_ptr(&(var)) +#define car_set_var(var, val) \ + do { car_get_var(var) = (val); } while(0) + +/* Migrate the CAR variables to memory. */ +void car_migrate_variables(void); + +#else +#define CAR_MIGRATE(migrate_fn_) +static inline void *car_get_var_ptr(void *var) { return var; } +#define car_get_var(var) (var) +#define car_set_var(var, val) do { (var) = (val); } while (0) +static inline void car_migrate_variables(void) { } +#endif + +#endif diff --git a/src/arch/aarch64/include/arch/exception.h b/src/arch/aarch64/include/arch/exception.h new file mode 100644 index 0000000000..5987d85af4 --- /dev/null +++ b/src/arch/aarch64/include/arch/exception.h @@ -0,0 +1,38 @@ +/* + * This file is part of the libpayload project. + * + * Copyright 2013 Google Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _ARCH_EXCEPTION_H +#define _ARCH_EXCEPTION_H + +#include + +void exception_init(void); +void set_vbar(uint64_t vbar); + +#endif diff --git a/src/arch/aarch64/include/arch/hlt.h b/src/arch/aarch64/include/arch/hlt.h new file mode 100644 index 0000000000..285b6f8786 --- /dev/null +++ b/src/arch/aarch64/include/arch/hlt.h @@ -0,0 +1,9 @@ +#ifndef ARCH_HLT_H +#define ARCH_HLT_H + +static inline __attribute__((always_inline)) void hlt(void) +{ + for (;;) ; +} + +#endif /* ARCH_HLT_H */ diff --git a/src/arch/aarch64/include/arch/io.h b/src/arch/aarch64/include/arch/io.h new file mode 100644 index 0000000000..4a88558ea2 --- /dev/null +++ b/src/arch/aarch64/include/arch/io.h @@ -0,0 +1,212 @@ +/* + * Based on (linux) arch/arm/include/asm/io.h + * + * Copyright (C) 1996-2000 Russell King + * Copyright (C) 2012 ARM Ltd. + * Copyright 2013 Google, Inc. + * + * 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, see . + */ +#ifndef __ASM_ARM_IO_H +#define __ASM_ARM_IO_H + +#include +#include +#include + +/* + * Generic IO read/write. These perform native-endian accesses. + */ +static inline void __raw_writeb(u8 val, volatile void *addr) +{ + asm volatile("strb %w0, [%1]" : : "r" (val), "r" (addr)); +} + +static inline void __raw_writew(u16 val, volatile void *addr) +{ + asm volatile("strh %w0, [%1]" : : "r" (val), "r" (addr)); +} + +static inline void __raw_writel(u32 val, volatile void *addr) +{ + asm volatile("str %w0, [%1]" : : "r" (val), "r" (addr)); +} + +static inline void __raw_writeq(u64 val, volatile void *addr) +{ + asm volatile("str %0, [%1]" : : "r" (val), "r" (addr)); +} + +static inline u8 __raw_readb(const volatile void *addr) +{ + u8 val; + asm volatile("ldrb %w0, [%1]" : "=r" (val) : "r" (addr)); + return val; +} + +static inline u16 __raw_readw(const volatile void *addr) +{ + u16 val; + asm volatile("ldrh %w0, [%1]" : "=r" (val) : "r" (addr)); + return val; +} + +static inline u32 __raw_readl(const volatile void *addr) +{ + u32 val; + asm volatile("ldr %w0, [%1]" : "=r" (val) : "r" (addr)); + return val; +} + +static inline u64 __raw_readq(const volatile void *addr) +{ + u64 val; + asm volatile("ldr %0, [%1]" : "=r" (val) : "r" (addr)); + return val; +} + +/* IO barriers */ +#define __iormb() rmb() +#define __iowmb() wmb() + +#define mmiowb() do { } while (0) + +/* + * Relaxed I/O memory access primitives. These follow the Device memory + * ordering rules but do not guarantee any ordering relative to Normal memory + * accesses. + */ +#define readb_relaxed(c) ({ u8 __v = __raw_readb(c); __v; }) +#define readw_relaxed(c) ({ u16 __v = le16_to_cpu((__force __le16)__raw_readw(c)); __v; }) +#define readl_relaxed(c) ({ u32 __v = le32_to_cpu((__force __le32)__raw_readl(c)); __v; }) + +#define writeb_relaxed(v,c) ((void)__raw_writeb((v),(c))) +#define writew_relaxed(v,c) ((void)__raw_writew((__force u16)cpu_to_le16(v),(c))) +#define writel_relaxed(v,c) ((void)__raw_writel((__force u32)cpu_to_le32(v),(c))) + +/* + * I/O memory access primitives. Reads are ordered relative to any + * following Normal memory access. Writes are ordered relative to any prior + * Normal memory access. + */ +#define readb(c) ({ u8 __v = readb_relaxed(c); __iormb(); __v; }) +#define readw(c) ({ u16 __v = readw_relaxed(c); __iormb(); __v; }) +#define readl(c) ({ u32 __v = readl_relaxed(c); __iormb(); __v; }) + +#define writeb(v,c) ({ __iowmb(); writeb_relaxed((v),(c)); }) +#define writew(v,c) ({ __iowmb(); writew_relaxed((v),(c)); }) +#define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); }) + +/* + * I/O port access primitives. + */ +static inline u8 inb(unsigned long addr) +{ + return readb(addr + CONFIG_PCI_IOBASE); +} + +static inline u16 inw(unsigned long addr) +{ + return readw(addr + CONFIG_PCI_IOBASE); +} + +static inline u32 inl(unsigned long addr) +{ + return readl(addr + CONFIG_PCI_IOBASE); +} + +static inline void outb(u8 b, unsigned long addr) +{ + writeb(b, addr + CONFIG_PCI_IOBASE); +} + +static inline void outw(u16 b, unsigned long addr) +{ + writew(b, addr + CONFIG_PCI_IOBASE); +} + +static inline void outl(u32 b, unsigned long addr) +{ + writel(b, addr + CONFIG_PCI_IOBASE); +} + +#define inb_p(addr) inb(addr) +#define inw_p(addr) inw(addr) +#define inl_p(addr) inl(addr) + +#define outb_p(x, addr) outb((x), (addr)) +#define outw_p(x, addr) outw((x), (addr)) +#define outl_p(x, addr) outl((x), (addr)) + +static inline void insb(unsigned long addr, void *buffer, int count) +{ + u8 *buf = buffer; + while (count--) + *buf++ = __raw_readb(addr + CONFIG_PCI_IOBASE); +} + +static inline void insw(unsigned long addr, void *buffer, int count) +{ + u16 *buf = buffer; + while (count--) + *buf++ = __raw_readw(addr + CONFIG_PCI_IOBASE); +} + +static inline void insl(unsigned long addr, void *buffer, int count) +{ + u32 *buf = buffer; + while (count--) + *buf++ = __raw_readl(addr + CONFIG_PCI_IOBASE); +} + +static inline void outsb(unsigned long addr, const void *buffer, int count) +{ + const u8 *buf = buffer; + while (count--) + __raw_writeb(*buf++, addr + CONFIG_PCI_IOBASE); +} + +static inline void outsw(unsigned long addr, const void *buffer, int count) +{ + const u16 *buf = buffer; + while (count--) + __raw_writew(*buf++, addr + CONFIG_PCI_IOBASE); +} + +static inline void outsl(unsigned long addr, const void *buffer, int count) +{ + const u32 *buf = buffer; + while (count--) + __raw_writel(*buf++, addr + CONFIG_PCI_IOBASE); +} + +#define insb_p(port,to,len) insb(port,to,len) +#define insw_p(port,to,len) insw(port,to,len) +#define insl_p(port,to,len) insl(port,to,len) + +#define outsb_p(port,from,len) outsb(port,from,len) +#define outsw_p(port,from,len) outsw(port,from,len) +#define outsl_p(port,from,len) outsl(port,from,len) + +/* + * String version of I/O memory access operations. + */ +extern void __memcpy_fromio(void *, const volatile void *, size_t); +extern void __memcpy_toio(volatile void *, const void *, size_t); +extern void __memset_io(volatile void *, int, size_t); + +#define memset_io(c,v,l) __memset_io((c),(v),(l)) +#define memcpy_fromio(a,c,l) __memcpy_fromio((a),(c),(l)) +#define memcpy_toio(c,a,l) __memcpy_toio((c),(a),(l)) + +#endif /* __ASM_ARM_IO_H */ diff --git a/src/arch/aarch64/include/arch/pci_ops.h b/src/arch/aarch64/include/arch/pci_ops.h new file mode 100644 index 0000000000..05bfc11f12 --- /dev/null +++ b/src/arch/aarch64/include/arch/pci_ops.h @@ -0,0 +1,25 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2013 Google Inc. + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef ARCH_AARCH64_PCI_OPS_H +#define ARCH_AARCH64_PCI_OPS_H + +/* V8 has PCI in some form. We will need to fill this in. */ + +#endif diff --git a/src/arch/aarch64/include/arch/rules.h b/src/arch/aarch64/include/arch/rules.h new file mode 100644 index 0000000000..a790365118 --- /dev/null +++ b/src/arch/aarch64/include/arch/rules.h @@ -0,0 +1,34 @@ +/* + * This file is part of the coreboot 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef _ARCH_RULES_H +#define _ARCH_RULES_H + +/* For romstage and ramstage always build with simple device model, ie. + * PCI, PNP and CPU functions operate without use of devicetree. + * + * For ramstage individual source file may define __SIMPLE_DEVICE__ + * before including any header files to force that particular source + * be built with simple device model. + */ + +#if defined(__PRE_RAM__) +#define __SIMPLE_DEVICE__ +#endif + +#endif /* _ARCH_RULES_H */ diff --git a/src/arch/aarch64/include/arch/stages.h b/src/arch/aarch64/include/arch/stages.h new file mode 100644 index 0000000000..e7a240102c --- /dev/null +++ b/src/arch/aarch64/include/arch/stages.h @@ -0,0 +1,29 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2013 The ChromiumOS Authors + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef __ARCH_STAGES_H +#define __ARCH_STAGES_H + +extern void main(void); + +void stage_entry(void) __attribute__((section(".text.stage_entry.aarch64"))); +void stage_exit(void *); +void jmp_to_elf_entry(void *entry, unsigned long buffer, unsigned long size); + +#endif diff --git a/src/arch/aarch64/include/assembler.h b/src/arch/aarch64/include/assembler.h new file mode 100644 index 0000000000..3c1068441c --- /dev/null +++ b/src/arch/aarch64/include/assembler.h @@ -0,0 +1,48 @@ +/* + * arch/arm/include/asm/assembler.h + * + * Copyright (C) 1996-2000 Russell King + * + * 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 file contains arm architecture specific defines + * for the different processors. + * + * Do not include any C declarations in this file - it is included by + * assembler source. + */ + +/* + * Endian independent macros for shifting bytes within registers. + */ +#ifndef __ARMEB__ +#define pull lsr +#define push lsl +#define get_byte_0 lsl #0 +#define get_byte_1 lsr #8 +#define get_byte_2 lsr #16 +#define get_byte_3 lsr #24 +#define put_byte_0 lsl #0 +#define put_byte_1 lsl #8 +#define put_byte_2 lsl #16 +#define put_byte_3 lsl #24 +#else +#define pull lsl +#define push lsr +#define get_byte_0 lsr #24 +#define get_byte_1 lsr #16 +#define get_byte_2 lsr #8 +#define get_byte_3 lsl #0 +#define put_byte_0 lsl #24 +#define put_byte_1 lsl #16 +#define put_byte_2 lsl #8 +#define put_byte_3 lsl #0 +#endif + +/* + * Cache aligned + */ +#define CALGN(code...) code + diff --git a/src/arch/aarch64/include/bootblock_common.h b/src/arch/aarch64/include/bootblock_common.h new file mode 100644 index 0000000000..2fa705f5e1 --- /dev/null +++ b/src/arch/aarch64/include/bootblock_common.h @@ -0,0 +1,11 @@ +#ifdef CONFIG_BOOTBLOCK_CPU_INIT +#include CONFIG_BOOTBLOCK_CPU_INIT +#endif + +#ifdef CONFIG_BOOTBLOCK_MAINBOARD_INIT +#include CONFIG_BOOTBLOCK_MAINBOARD_INIT +#else +static void bootblock_mainboard_init(void) +{ +} +#endif diff --git a/src/arch/aarch64/include/clocks.h b/src/arch/aarch64/include/clocks.h new file mode 100644 index 0000000000..8f35303fd3 --- /dev/null +++ b/src/arch/aarch64/include/clocks.h @@ -0,0 +1,44 @@ +/* + * Copyright (c) 2011 The Chromium OS Authors. + * 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 + */ + +/* Standard clock speeds */ + +/* + * We define some commonly-used clock speeds to avoid error since long + * numbers are hard to read. + * + * The format of the label is + * CLK_x_yU where: + * x is the integer speed + * y is the fractional part which can be omitted if 0 + * U is the units (blank for Hz, K or M for KHz and MHz) + * + * Please order the items by increasing Hz + */ +enum { + CLK_32768 = 32768, + CLK_20M = 20000000, + CLK_24M = 24000000, + CLK_144M = 144000000, + CLK_216M = 216000000, + CLK_300M = 300000000, +}; + diff --git a/src/arch/aarch64/include/smp/spinlock.h b/src/arch/aarch64/include/smp/spinlock.h new file mode 100644 index 0000000000..8052616bbb --- /dev/null +++ b/src/arch/aarch64/include/smp/spinlock.h @@ -0,0 +1,6 @@ +#ifndef ARCH_SMP_SPINLOCK_H +#define ARCH_SMP_SPINLOCK_H + +#error "spinlocks: implement this for AARCH64" + +#endif diff --git a/src/arch/aarch64/include/stdint.h b/src/arch/aarch64/include/stdint.h new file mode 100644 index 0000000000..f1923468de --- /dev/null +++ b/src/arch/aarch64/include/stdint.h @@ -0,0 +1,60 @@ +#ifndef ARM_STDINT_H +#define ARM_STDINT_H + +/* Exact integral types */ +typedef unsigned char uint8_t; +typedef signed char int8_t; + +typedef unsigned short uint16_t; +typedef signed short int16_t; + +typedef unsigned int uint32_t; +typedef signed int int32_t; + +typedef unsigned long long uint64_t; +typedef signed long long int64_t; + +/* Small types */ +typedef unsigned char uint_least8_t; +typedef signed char int_least8_t; + +typedef unsigned short uint_least16_t; +typedef signed short int_least16_t; + +typedef unsigned int uint_least32_t; +typedef signed int int_least32_t; + +typedef unsigned long long uint_least64_t; +typedef signed long long int_least64_t; + +/* Fast Types */ +typedef unsigned char uint_fast8_t; +typedef signed char int_fast8_t; + +typedef unsigned int uint_fast16_t; +typedef signed int int_fast16_t; + +typedef unsigned int uint_fast32_t; +typedef signed int int_fast32_t; + +typedef unsigned long long uint_fast64_t; +typedef signed long long int_fast64_t; + +typedef long long int intmax_t; +typedef unsigned long long uintmax_t; + +typedef uint8_t u8; +typedef uint16_t u16; +typedef uint32_t u32; +typedef uint64_t u64; +typedef int8_t s8; +typedef int16_t s16; +typedef int32_t s32; +typedef int64_t s64; + + +/* Types for `void *' pointers. */ +typedef s64 intptr_t; +typedef u64 uintptr_t; + +#endif /* ARM_STDINT_H */ diff --git a/src/arch/aarch64/include/utils.h b/src/arch/aarch64/include/utils.h new file mode 100644 index 0000000000..828b86cb36 --- /dev/null +++ b/src/arch/aarch64/include/utils.h @@ -0,0 +1,56 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, + * Aneesh V + * + * 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 + */ +#ifndef _UTILS_H_ +#define _UTILS_H_ + +static inline s32 log_2_n_round_up(u32 n) +{ + s32 log2n = -1; + u32 temp = n; + + while (temp) { + log2n++; + temp >>= 1; + } + + if (n & (n - 1)) + return log2n + 1; /* not power of 2 - round up */ + else + return log2n; /* power of 2 */ +} + +static inline s32 log_2_n_round_down(u32 n) +{ + s32 log2n = -1; + u32 temp = n; + + while (temp) { + log2n++; + temp >>= 1; + } + + return log2n; +} + +#endif diff --git a/src/arch/aarch64/romstage.ld b/src/arch/aarch64/romstage.ld new file mode 100644 index 0000000000..7ebe53f62a --- /dev/null +++ b/src/arch/aarch64/romstage.ld @@ -0,0 +1,78 @@ +/* + * Memory map: + * + * CONFIG_RAMBASE : text segment + * : rodata segment + * : data segment + * : bss segment + * : stack + * : heap + */ +/* + * Bootstrap code for the STPC Consumer + * Copyright (c) 1999 by Net Insight AB. All Rights Reserved. + */ + +/* + * Written by Johan Rydberg, based on work by Daniel Kahlin. + * Rewritten by Eric Biederman + * 2005.12 yhlu add coreboot_ram cross the vga font buffer handling + */ + +/* We use ELF as output format. So that we can debug the code in some form. */ +OUTPUT_FORMAT("elf64-littleaarch64", "elf64-littleaarch64", "elf64-littleaarch64") +OUTPUT_ARCH(aarch64) + +ENTRY(stage_entry) + +PHDRS +{ + to_load PT_LOAD; +} + +SECTIONS +{ + /* TODO make this a configurable option (per chipset). */ + . = CONFIG_ROMSTAGE_BASE; + + .romtext . : { + _rom = .; + _start = .; + *(.text.stage_entry.aarch64); + *(.text.startup); + *(.text); + } : to_load + + .romdata . : { + *(.rodata); + *(.machine_param); + *(.data); + . = ALIGN(8); + _erom = .; + } + + __image_copy_end = .; + + /* bss does not contain data, it is just a space that should be zero + * initialized on startup. (typically uninitialized global variables) + * crt0.S fills between _bss and _ebss with zeroes. + */ + .bss . : { + . = ALIGN(8); + _bss = .; + *(.bss) + *(.sbss) + *(COMMON) + } + _ebss = .; + _end = .; + + /* Discard the sections we don't need/want */ + /DISCARD/ : { + *(.comment) + *(.note) + *(.comment.*) + *(.note.*) + *(.eh_frame); + } +} diff --git a/src/arch/aarch64/stages.c b/src/arch/aarch64/stages.c new file mode 100644 index 0000000000..a258c88213 --- /dev/null +++ b/src/arch/aarch64/stages.c @@ -0,0 +1,61 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2012 Google Inc. + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* + * This file contains entry/exit functions for each stage during coreboot + * execution (bootblock entry and ramstage exit will depend on external + * loading. + * + * Unlike other files, this one should be compiled with a -m option to + * specify a pre-determined instruction set. This is to ensure consistency + * in the CPU operating mode (ARM or Thumb) when hand-off between stages + * occurs. + * + * Entry points must be placed at the location the previous stage jumps + * to (the lowest address in the stage image). This is done by giving + * stage_entry() its own section in .text and placing it first in the + * linker script. + */ + +#include + +void stage_entry(void) +{ + main(); +} + +/* we had marked 'doit' as 'noreturn'. There is no apparent harm in + * leaving it as something we can return from, and in the one case + * where we call a payload, the payload is allowed to return. Hence, + * leave it as something we can return from. + */ +void stage_exit(void *addr) +{ + void (*doit)(void) = addr; + /* make sure any code we installed is written to memory. Not all ARM have + * unified caches. + */ + + /* Because most stages copy code to memory, it's a safe and + * hygienic thing to flush the icache here. If we knew how + * on this architecture :-) + */ + //icache_invalidate_all(); + doit(); +} diff --git a/src/arch/aarch64/tables.c b/src/arch/aarch64/tables.c new file mode 100644 index 0000000000..9e95b027a2 --- /dev/null +++ b/src/arch/aarch64/tables.c @@ -0,0 +1,76 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2003 Eric Biederman + * Copyright (C) 2005 Steve Magnani + * Copyright (C) 2008-2009 coresystems GmbH + * + * 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; version 2 of the License. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include +#include +#include +#include +#include + +#define MAX_COREBOOT_TABLE_SIZE (8 * 1024) + +void __attribute__((weak)) get_cbmem_table(uint64_t *base, uint64_t *size) +{ + printk(BIOS_WARNING, + "WARNING: you need to define get_cbmem_table for your board\n"); + *base = 0; + *size = 0; +} + +void cbmem_arch_init(void) +{ +} + +struct lb_memory *write_tables(void) +{ + unsigned long table_pointer, new_table_pointer; + + cbmem_base_check(); + + post_code(0x9d); + + table_pointer = (unsigned long)cbmem_add(CBMEM_ID_CBTABLE, + MAX_COREBOOT_TABLE_SIZE); + if (!table_pointer) { + printk(BIOS_ERR, "Could not add CBMEM for coreboot table.\n"); + return NULL; + } + + new_table_pointer = write_coreboot_table(0UL, 0UL, + table_pointer, table_pointer); + + if (new_table_pointer > (table_pointer + MAX_COREBOOT_TABLE_SIZE)) { + printk(BIOS_ERR, "coreboot table didn't fit (%lx/%x bytes)\n", + new_table_pointer - table_pointer, MAX_COREBOOT_TABLE_SIZE); + } + + printk(BIOS_DEBUG, "coreboot table: %ld bytes.\n", + new_table_pointer - table_pointer); + + post_code(0x9e); + + /* Print CBMEM sections */ + cbmem_list(); + + return get_lb_mem(); +}