mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-12-22 12:21:18 +00:00
exo: add stub warmboot.bin
This commit is contained in:
Michael Scire
parent
dca51291aa
commit
fc4912ef54
9 changed files with 453 additions and 0 deletions
154
exosphere/lp0fw/Makefile
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154
exosphere/lp0fw/Makefile
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@ -0,0 +1,154 @@
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#---------------------------------------------------------------------------------
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.SUFFIXES:
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#---------------------------------------------------------------------------------
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ifeq ($(strip $(DEVKITARM)),)
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$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
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endif
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TOPDIR ?= $(CURDIR)
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include $(DEVKITARM)/base_rules
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#---------------------------------------------------------------------------------
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# TARGET is the name of the output
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# BUILD is the directory where object files & intermediate files will be placed
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# SOURCES is a list of directories containing source code
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# DATA is a list of directories containing data files
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# INCLUDES is a list of directories containing header files
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#---------------------------------------------------------------------------------
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TARGET := $(notdir $(CURDIR))
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BUILD := build
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SOURCES := src
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DATA := data
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INCLUDES := include
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#---------------------------------------------------------------------------------
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# options for code generation
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#---------------------------------------------------------------------------------
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ARCH := -march=armv4t -mtune=arm7tdmi -mthumb -mthumb-interwork
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CFLAGS := \
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-g \
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-O2 \
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-ffunction-sections \
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-fdata-sections \
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-fomit-frame-pointer \
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-fno-inline \
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-std=gnu11 \
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-Werror \
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-Wall \
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$(ARCH) $(DEFINES)
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CFLAGS += $(INCLUDE) -D__BPMP__
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CXXFLAGS := $(CFLAGS) -fno-rtti -fno-exceptions -std=gnu++11
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ASFLAGS := -g $(ARCH)
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LDFLAGS = -specs=$(TOPDIR)/linker.specs -g $(ARCH) -Wl,-Map,$(notdir $*.map)
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LIBS :=
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#---------------------------------------------------------------------------------
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# list of directories containing libraries, this must be the top level containing
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# include and lib
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#---------------------------------------------------------------------------------
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LIBDIRS :=
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#---------------------------------------------------------------------------------
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# no real need to edit anything past this point unless you need to add additional
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# rules for different file extensions
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#---------------------------------------------------------------------------------
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ifneq ($(BUILD),$(notdir $(CURDIR)))
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#---------------------------------------------------------------------------------
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export OUTPUT := $(CURDIR)/$(TARGET)
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export TOPDIR := $(CURDIR)
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export VPATH := $(foreach dir,$(SOURCES),$(CURDIR)/$(dir)) \
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$(foreach dir,$(DATA),$(CURDIR)/$(dir))
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export DEPSDIR := $(CURDIR)/$(BUILD)
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CFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.c)))
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CPPFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.cpp)))
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SFILES := $(foreach dir,$(SOURCES),$(notdir $(wildcard $(dir)/*.s)))
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BINFILES := $(foreach dir,$(DATA),$(notdir $(wildcard $(dir)/*.*)))
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#---------------------------------------------------------------------------------
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# use CXX for linking C++ projects, CC for standard C
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#---------------------------------------------------------------------------------
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ifeq ($(strip $(CPPFILES)),)
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#---------------------------------------------------------------------------------
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export LD := $(CC)
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#---------------------------------------------------------------------------------
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else
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#---------------------------------------------------------------------------------
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export LD := $(CXX)
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#---------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------
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export OFILES_BIN := $(addsuffix .o,$(BINFILES))
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export OFILES_SRC := $(CPPFILES:.cpp=.o) $(CFILES:.c=.o) $(SFILES:.s=.o)
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export OFILES := $(OFILES_BIN) $(OFILES_SRC)
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export HFILES_BIN := $(addsuffix .h,$(subst .,_,$(BINFILES)))
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export INCLUDE := $(foreach dir,$(INCLUDES),-I$(CURDIR)/$(dir)) \
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$(foreach dir,$(LIBDIRS),-I$(dir)/include) \
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-I$(CURDIR)/$(BUILD)
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export LIBPATHS := $(foreach dir,$(LIBDIRS),-L$(dir)/lib)
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.PHONY: $(BUILD) clean all
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#---------------------------------------------------------------------------------
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all: $(BUILD)
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$(BUILD):
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@[ -d $@ ] || mkdir -p $@
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@$(MAKE) --no-print-directory -C $(BUILD) -f $(CURDIR)/Makefile
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#---------------------------------------------------------------------------------
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clean:
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@echo clean ...
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@rm -fr $(BUILD) $(TARGET).bin $(TARGET).elf
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#---------------------------------------------------------------------------------
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else
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.PHONY: all
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DEPENDS := $(OFILES:.o=.d)
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#---------------------------------------------------------------------------------
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# main targets
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#---------------------------------------------------------------------------------
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all : $(OUTPUT).bin
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$(OUTPUT).bin : $(OUTPUT).elf
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$(OBJCOPY) -S -O binary $< $@
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@echo built ... $(notdir $@)
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$(OUTPUT).elf : $(OFILES)
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%.elf: $(OFILES)
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@echo linking $(notdir $@)
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@$(LD) $(LDFLAGS) $(OFILES) $(LIBPATHS) $(LIBS) -o $@
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@$(NM) -CSn $@ > $(notdir $*.lst)
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$(OFILES_SRC) : $(HFILES_BIN)
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#---------------------------------------------------------------------------------
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# you need a rule like this for each extension you use as binary data
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#---------------------------------------------------------------------------------
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%.bin.o : %.bin
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#---------------------------------------------------------------------------------
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@echo $(notdir $<)
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@$(bin2o)
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-include $(DEPENDS)
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#---------------------------------------------------------------------------------------
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endif
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#---------------------------------------------------------------------------------------
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24
exosphere/lp0fw/linker.ld
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24
exosphere/lp0fw/linker.ld
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@ -0,0 +1,24 @@
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OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
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OUTPUT_ARCH(arm)
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ENTRY(_start)
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SECTIONS
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{
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. = 0x40010000;
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__start__ = ABSOLUTE(.);
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.text : ALIGN(4) { *(.text.start) *(.text*); . = ALIGN(4); }
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.rodata : ALIGN(4) { *(.rodata*); . = ALIGN(4); }
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.bss : ALIGN(8) { __bss_start__ = .; *(.bss* COMMON); . = ALIGN(8); __bss_end__ = .; }
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. = ALIGN(4);
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__end__ = ABSOLUTE(.);
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__total_size__ = (__end__ - __start__);
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__executable_size__ = (__end__ - _start);
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__stack_top__ = 0x40013000;
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__stack_bottom__ = 0x40012000;
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}
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7
exosphere/lp0fw/linker.specs
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7
exosphere/lp0fw/linker.specs
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%rename link old_link
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*link:
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%(old_link) -T %:getenv(TOPDIR /linker.ld) --nmagic --gc-sections
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*startfile:
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crti%O%s crtbegin%O%s
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41
exosphere/lp0fw/src/lp0.c
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41
exosphere/lp0fw/src/lp0.c
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@ -0,0 +1,41 @@
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/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "utils.h"
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#include "lp0.h"
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#include "pmc.h"
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#include "timer.h"
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void reboot(void) {
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/* Write MAIN_RST */
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APBDEV_PMC_CNTRL_0 = 0x10;
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while (true) {
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/* Wait for reboot. */
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}
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}
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void lp0_entry_main(warmboot_metadata_t *meta) {
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/* Before doing anything else, ensure some sanity. */
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if (meta->magic != WARMBOOT_MAGIC || meta->tz_relative_offset > 0x2000) {
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reboot();
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}
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/* TODO: stuff */
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while (true) { /* TODO: Halt BPMP */ }
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}
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35
exosphere/lp0fw/src/lp0.h
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35
exosphere/lp0fw/src/lp0.h
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@ -0,0 +1,35 @@
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/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef EXOSPHERE_WARMBOOT_BIN_LP0_H
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#define EXOSPHERE_WARMBOOT_BIN_LP0_H
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#include "utils.h"
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/* WBT0 */
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#define WARMBOOT_MAGIC 0x30544257
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typedef struct {
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uint32_t magic;
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uint32_t tz_relative_offset;
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uint32_t padding[2];
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} warmboot_metadata_t;
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void lp0_entry_main(warmboot_metadata_t *meta);
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void reboot(void);
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#endif
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53
exosphere/lp0fw/src/pmc.h
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53
exosphere/lp0fw/src/pmc.h
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@ -0,0 +1,53 @@
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/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef EXOSPHERE_WARMBOOT_BIN_PMC_H
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#define EXOSPHERE_WARMBOOT_BIN_PMC_H
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#include "utils.h"
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#define PMC_BASE (0x7000E400)
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#define MAKE_PMC_REG(ofs) (MAKE_REG32(PMC_BASE + ofs))
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#define APBDEV_PMC_CNTRL_0 MAKE_PMC_REG(0x000)
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#define APBDEV_PMC_DPD_SAMPLE_0 MAKE_PMC_REG(0x020)
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#define APBDEV_PMC_DPD_ENABLE_0 MAKE_PMC_REG(0x024)
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#define APBDEV_PMC_CLAMP_STATUS_0 MAKE_PMC_REG(0x02C)
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#define APBDEV_PMC_PWRGATE_STATUS_0 MAKE_PMC_REG(0x038)
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#define APBDEV_PMC_SCRATCH12_0 MAKE_PMC_REG(0x080)
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#define APBDEV_PMC_SCRATCH13_0 MAKE_PMC_REG(0x084)
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#define APBDEV_PMC_SCRATCH18_0 MAKE_PMC_REG(0x098)
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#define APBDEV_PMC_WEAK_BIAS_0 MAKE_PMC_REG(0x2C8)
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#define APBDEV_PMC_IO_DPD3_REQ_0 MAKE_PMC_REG(0x45C)
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#define APBDEV_PMC_IO_DPD3_STATUS_0 MAKE_PMC_REG(0x460)
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#define APBDEV_PMC_IO_DPD4_REQ_0 MAKE_PMC_REG(0x464)
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#define APBDEV_PMC_IO_DPD4_STATUS_0 MAKE_PMC_REG(0x468)
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#define APBDEV_PMC_SET_SW_CLAMP_0 MAKE_PMC_REG(0x47C)
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#define APBDEV_PMC_DDR_CNTRL_0 MAKE_PMC_REG(0x4E4)
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#endif
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68
exosphere/lp0fw/src/start.s
Normal file
68
exosphere/lp0fw/src/start.s
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@ -0,0 +1,68 @@
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/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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.section .text.start
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/* Warmboot header. */
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/* Binary size */
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.word __total_size__
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.rept 3
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.word 0x00000000
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.endr
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/* RSA modulus */
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.rept 0x40
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.word 0xFFFFFFFF
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.endr
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/* Padding */
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.rept 4
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.word 0x00000000
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.endr
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/* RSA signature */
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.rept 0x40
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.word 0xFFFFFFFF
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.endr
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/* Padding */
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.rept 4
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.word 0x00000000
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.endr
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/* Relocation meta */
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.word __total_size__
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.word _start
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.word _start
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.word __executable_size__
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.global _start
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_start:
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b crt0
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.rept 0x7C
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.word 0x00000000 /* Padding */
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.endr
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.global _metadata
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_metadata:
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.ascii "WBT0" /* Magic number */
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.word 0x00000000 /* TrustZone relative base. */
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.word 0x00000000 /* Reserved */
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.word 0x00000000 /* Reserved */
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.global crt0
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.type crt0, %function
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crt0:
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@ setup to call lp0_entry_main
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ldr sp, =__stack_top__
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ldr lr, =reboot
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ldr r0, =_metadata
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b lp0_entry_main
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33
exosphere/lp0fw/src/timer.h
Normal file
33
exosphere/lp0fw/src/timer.h
Normal file
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@ -0,0 +1,33 @@
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/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope 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 <http://www.gnu.org/licenses/>.
|
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*/
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#ifndef EXOSPHERE_WARMBOOT_BIN_TIMER_H
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#define EXOSPHERE_WARMBOOT_BIN_TIMER_H
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#include "utils.h"
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#define TIMERUS_CNTR_1US_0 MAKE_REG32(0x60005010)
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static inline void timer_wait(uint32_t microseconds) {
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uint32_t old_time = TIMERUS_CNTR_1US_0;
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while (TIMERUS_CNTR_1US_0 - old_time <= microseconds) {
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/* Spin-lock. */
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}
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}
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void spinlock_wait(uint32_t count);
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#endif
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38
exosphere/lp0fw/src/utils.h
Normal file
38
exosphere/lp0fw/src/utils.h
Normal file
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/*
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* Copyright (c) 2018 Atmosphère-NX
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*
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||||
* This program is free software; you can redistribute it and/or modify it
|
||||
* under the terms and conditions of the GNU General Public License,
|
||||
* version 2, as published by the Free Software Foundation.
|
||||
*
|
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* This program is distributed in the hope 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 <http://www.gnu.org/licenses/>.
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*/
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#ifndef EXOSPHERE_WARMBOOT_BIN_UTILS_H
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#define EXOSPHERE_WARMBOOT_BIN_UTILS_H
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#define BIT(n) (1u << (n))
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#define BITL(n) (1ull << (n))
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#define MASK(n) (BIT(n) - 1)
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#define MASKL(n) (BITL(n) - 1)
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#define MASK2(a,b) (MASK(a) & ~MASK(b))
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#define MASK2L(a,b) (MASKL(a) & ~MASKL(b))
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#define MAKE_REG32(a) (*(volatile uint32_t *)(a))
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#define ALIGN(m) __attribute__((aligned(m)))
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#define PACKED __attribute__((packed))
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#define ALINLINE __attribute__((always_inline))
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#endif
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