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Hector Martin 2022-08-08 15:33:53 +09:00
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git_version.h
*.d
*.bin
*.elf
*.map
*~
*.o
.*.swp

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[submodule "mini"]
path = mini
url = https://github.com/fail0verflow/mini

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GNU GENERAL PUBLIC LICENSE
Version 2, June 1991
Copyright (C) 1989, 1991 Free Software Foundation, Inc.
51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
Preamble
The licenses for most software are designed to take away your
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How to Apply These Terms to Your New Programs
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Copyright (C) <year> <name of author>
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Also add information on how to contact you by electronic and paper mail.
If the program is interactive, make it output a short notice like this
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Gnomovision version 69, Copyright (C) year name of author
Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
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The hypothetical commands `show w' and `show c' should show the appropriate
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You should also get your employer (if you work as a programmer) or your
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Yoyodyne, Inc., hereby disclaims all copyright interest in the program
`Gnomovision' (which makes passes at compilers) written by James Hacker.
<signature of Ty Coon>, 1 April 1989
Ty Coon, President of Vice
This General Public License does not permit incorporating your program into
proprietary programs. If your program is a subroutine library, you may
consider it more useful to permit linking proprietary applications with the
library. If this is what you want to do, use the GNU Library General
Public License instead of this License.

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all: bootmii.bin
.PHONY: bootmii.bin
bootmii.bin:
@$(MAKE) -C loader
@$(MAKE) -C stub
@$(MAKE) -C resetstub
python2 mini/makebin.py stub/bootmii.bin resetstub/resetstub.elf bootmii.bin
clean:
@$(MAKE) -C loader clean
@$(MAKE) -C stub clean
@$(MAKE) -C resetstub clean

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# BootMii loader
This repository contains the public release of the source code for
the BootMii stub loader.
Included portions:
* ELF loader stub
* BootMii SD loader proper
* Reset stub
* mini (submodule)
Not included:
* boot2-style-wad packaging stuff
* PyWii (see hbc)
* UI/PPC side (CE1LING_CAT)
* Installer
Note that the code in this repository may differ from the source code used to
build the official version of BootMii.
This code is released with no warranty, and has only been build tested.
If you release this to anyone but yourself without extensive testing, you are an
irresponsible person and we will forever hate you.
## Build instructions
You need armeb-eabi cross compilers. Same build setup as
[mini](https://github.com/fail0verflow/mini). See
[bootmii-utils](https://github.com/fail0verflow/bootmii-utils) for some outdated
toolchain build scripts. Type `make` to compile. Good luck.
Output is at `bootmii.bin`, which is the main `armboot.bin` style executable
for BootMii-as-IOS, with a dummy reset stub as payload. Installation as boot2
would replace the ELF payload with the original boot2 instead.
## Seriously
Do NOT release this to users unless you've read
[this](https://marcan.st/2011/01/safe-hacking/) and spent months testing
hardware variations and building an installer that cross checks every step
including boot1 simulation prior to actually committing to NAND. There's a
reason we didn't brick any Wiis with this stuff. We're releasing this because
it's been over a decade and some people are asking for it to experiment with
devkits and other weird stuff, not because anyone should try using this on their
Wii.
## License
Unless otherwise noted in an individual file header, all source code in this
repository is released under the terms of the GNU General Public License,
version 2 or later. The full text of the license can be found in the COPYING
file.

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mini/common.mk

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#!/bin/sh
cd "$(dirname "$0")"
# Check for git and a git repo.
if head=`git rev-parse --verify HEAD 2>/dev/null`; then
printf "%s" `git describe --always --match bootmii-\* \`git log --pretty=oneline -n1 | awk ' { print $1 }'\` | awk '{ sub (/bootmii-/, ""); print;}'`
# Are there uncommitted changes?
git update-index --refresh --unmerged > /dev/null
git diff-index --quiet HEAD loader stub || printf "%s" -dirty
fi
echo

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#!/bin/sh
cd "$(dirname "$0")"
# Check for git and a git repo.
if head=`git rev-parse --verify HEAD 2>/dev/null`; then
comm=`git log --pretty=oneline -n1 | awk ' { print $1 }'`
printf "%s" ""`printf "%s" \`git describe --always --abbrev=4 --match bootmii-\* $comm | awk '{ sub (/bootmii-/, ""); print;}'\``
# Are there uncommitted changes?
git update-index --refresh --unmerged > /dev/null
git diff-index --quiet HEAD loader stub || printf "%s" '*'
fi
echo

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*.d
*.bin
*.elf
*.o
*.map
loader_version.txt

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include ../starlet.mk
TARGET = bootmii-sym.elf
TARGET_STRIPPED = bootmii.elf
OBJS = start.o main.o vsprintf.o string.o gecko.o memory.o memory_asm.o \
sdhc.o sdmmc.o utils.o ff.o diskio.o lcd.o version.o
CFLAGS = -mbig-endian -mthumb -march=armv5t
CFLAGS += -fomit-frame-pointer -ffunction-sections
CFLAGS += -Wall -Wextra -Os -pipe
# uncomment to enabled LCD debug output
#DEFINES += -DENABLE_LCD
DEFINES += -DLOADER
LDFLAGS += -Wl,-N
LDSCRIPT = loader.ld
LIBS = -lgcc
include ../common.mk
all: $(TARGET_STRIPPED) loader_version.txt
$(TARGET_STRIPPED): $(TARGET)
@echo " STRIP $@"
@cp $< $@
@$(STRIP) -R .comment -R .ARM.attributes -s $@
version.o: version.c ../describe.sh
@echo " VERSION $@"
@cat $< | sed "s/%VERSION%/`../describe.sh`/" | $(CC) $(CFLAGS) -c -x c - -o $@
loader_version.txt: ../describe.sh
@../describe.sh > loader_version.txt
clean: myclean
myclean:
-rm -f $(TARGET_STRIPPED) loader_version.txt
.PHONY: version.o

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../mini/bsdtypes.h

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../mini/diskio.c

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loader/diskio.h Symbolic link
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../mini/diskio.h

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loader/elf.h Symbolic link
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../mini/elf.h

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loader/errno.h Symbolic link
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../mini/errno.h

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../mini/ff.c

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loader/ff.h Symbolic link
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../mini/ff.h

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
USBGecko support code
Copyright (c) 2008 Nuke - <wiinuke@gmail.com>
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
Copyright (C) 2008, 2009 Sven Peter <sven@svenpeter.dev>
Copyright (C) 2009 Andre Heider "dhewg" <dhewg@wiibrew.org>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#include "types.h"
#include "start.h"
#include "vsprintf.h"
#include "string.h"
#include "utils.h"
#include "hollywood.h"
#include "gecko.h"
static int gecko_active = 0;
static u32 _gecko_command(u32 command)
{
u32 i;
// Memory Card Port B (Channel 1, Device 0, Frequency 3 (32Mhz Clock))
write32(EXI1_CSR, 0xd0);
write32(EXI1_DATA, command);
write32(EXI1_CR, 0x19);
while (read32(EXI1_CR) & 1);
i = read32(EXI1_DATA);
write32(EXI1_CSR, 0);
return i;
}
static u32 _gecko_getid(void)
{
u32 i;
// Memory Card Port B (Channel 1, Device 0, Frequency 3 (32Mhz Clock))
write32(EXI1_CSR, 0xd0);
write32(EXI1_DATA, 0);
write32(EXI1_CR, 0x19);
while (read32(EXI1_CR) & 1);
write32(EXI1_CR, 0x39);
while (read32(EXI1_CR) & 1);
i = read32(EXI1_DATA);
write32(EXI1_CSR, 0);
return i;
}
static u32 _gecko_sendbyte(char sendbyte)
{
u32 i = 0;
i = _gecko_command(0xB0000000 | (sendbyte<<20));
if (i&0x04000000)
return 1; // Return 1 if byte was sent
return 0;
}
static u32 _gecko_checksend(void)
{
u32 i = 0;
i = _gecko_command(0xC0000000);
if (i&0x04000000)
return 1; // Return 1 if safe to send
return 0;
}
int gecko_isalive(void)
{
u32 i;
u32 id;
id = _gecko_getid();
if(id != 0x00000000)
return 0;
i = _gecko_command(0x90000000);
if ((i&0xFFFF0000) != 0x04700000)
return 0;
return 1;
}
void gecko_init(void)
{
write32(EXI0_CSR, 0);
write32(EXI1_CSR, 0);
write32(EXI2_CSR, 0);
write32(EXI0_CSR, 0x2000);
write32(EXI0_CSR, 3<<10);
write32(EXI1_CSR, 3<<10);
gecko_active = 0;
if(gecko_isalive())
gecko_active = 1;
}
#if 0
int gecko_sendbuffer(const void *buffer, u32 size)
{
u32 left = size;
char *ptr = (char*)buffer;
while(left>0) {
if(!_gecko_sendbyte(*ptr))
break;
ptr++;
left--;
}
return (size - left);
}
#endif
int gecko_sendbuffer_safe(const void *buffer, u32 size)
{
u32 left = size;
char *ptr = (char*)buffer;
int tries = 10000; // about 200ms of tries
if((read32(HW_EXICTRL) & EXICTRL_ENABLE_EXI) == 0)
return left;
while(left>0) {
if(_gecko_checksend()) {
if(!_gecko_sendbyte(*ptr))
break;
ptr++;
left--;
} else {
// if gecko is hung, time out and disable further attempts
// only affects gecko users without an active terminal
if(tries-- == 0) {
gecko_active = 0;
break;
}
}
}
return (size - left);
}
#if 0
int gecko_putchar(int ic)
{
char b = ic;
if(!gecko_active)
return -1;
return gecko_sendbuffer(&b, 1);
}
#endif
int gecko_puts(const char *s)
{
if(!gecko_active)
return -1;
return gecko_sendbuffer_safe(s, strlen(s));
}
int gecko_printf( const char *fmt, ...)
{
va_list args;
char buffer[256];
int i;
if(!gecko_active)
return -1;
va_start(args, fmt);
i = vsprintf(buffer, fmt, args);
va_end(args);
gecko_puts(buffer);
return i;
}

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
USBGecko support code
Copyright (c) 2008 Nuke - <wiinuke@gmail.com>
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
Copyright (C) 2008, 2009 Sven Peter <sven@svenpeter.dev>
Copyright (C) 2009 Andre Heider "dhewg" <dhewg@wiibrew.org>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#ifndef __GECKO_H__
#define __GECKO_H__
#include "types.h"
void gecko_flush(void);
int gecko_isalive(void);
int gecko_recvbuffer(void *buffer, u32 size);
int gecko_sendbuffer(const void *buffer, u32 size);
int gecko_recvbuffer_safe(void *buffer, u32 size);
int gecko_sendbuffer_safe(const void *buffer, u32 size);
int gecko_putchar(int c);
int gecko_getchar(void);
int gecko_puts(const char *s);
int gecko_printf( const char *fmt, ...);
void gecko_init(void);
#endif

1
loader/gpio.h Symbolic link
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../mini/gpio.h

1
loader/hollywood.h Symbolic link
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../mini/hollywood.h

1
loader/integer.h Symbolic link
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../mini/integer.h

1
loader/irq.h Symbolic link
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../mini/irq.h

225
loader/lcd.c Normal file
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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
GPIO LCD display support
(yes, that thing in that youtube video)
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#ifdef ENABLE_LCD
#include "types.h"
#include "lcd.h"
#include "start.h"
#include "vsprintf.h"
#include "string.h"
#include "utils.h"
#include "hollywood.h"
void lcdinit(void);
char ddram[0x80];
u8 ddaddr = 0;
u32 chardelay = 0;
#define WIDTH 16
#define HEIGHT 2
u8 linestarts[HEIGHT] = { 0x00, 0x40 };
u8 cx, cy;
// for 4x20
//u8 linestarts[HEIGHT] = { 0x00, 0x40, 0x14, 0x54 };
#define LCD_HOME_CLEAR 0x01
#define LCD_HOME 0x02
#define LCD_ENTRY_MODE 0x04
# define EM_INC 0x02
# define EM_DEC 0x00
# define EM_SHIFT 0x01
#define LCD_DISPLAY_ONOFF 0x08
# define D_DISPLAY 0x04
# define D_CURSOR 0x02
# define D_BLINK 0x01
#define LCD_SHIFT 0x10
# define SH_SHIFT 0x08
# define SH_CURSOR 0x00
# define SH_RIGHT 0x04
# define SH_LEFT 0x00
#define LCD_FUNCTION_SET 0x20
# define FS_8BIT 0x10
# define FS_4BIT 0x00
# define FS_2LINE 0x08
# define FS_1LINE 0x00
# define FS_5X10 0x04
# define FS_5X8 0x00
#define LCD_CGRAM 0x40
#define LCD_DDRAM 0x80
#define LCD_PORT HW_GPIO1OUT
#define LCD_MASK 0x00FC0000
#define LCD_E 0x00040000
#define LCD_RS 0x00080000
#define LCD_DSHIFT 20
static void _lcdnybble(char rs, char n)
{
if(rs)
mask32(LCD_PORT, LCD_MASK, ((n&0xF) << LCD_DSHIFT) | LCD_RS);
else
mask32(LCD_PORT, LCD_MASK, ((n&0xF) << LCD_DSHIFT));
udelay(4);
set32(HW_GPIO1OUT, LCD_E);
udelay(4);
clear32(HW_GPIO1OUT, LCD_E);
udelay(4);
}
static void _lcdcmd(char c)
{
_lcdnybble(0, c>>4);
_lcdnybble(0, c&0x0F);
udelay(50);
}
static void _lcdwrite(char c)
{
_lcdnybble(1, c>>4);
_lcdnybble(1, c&0x0F);
ddram[ddaddr] = c;
ddaddr = (ddaddr+1)&0x7F;
udelay(50);
}
static void _lcdgoto(u8 addr)
{
_lcdcmd(LCD_DDRAM | addr);
ddaddr = addr;
}
static void _lcdgotoxy(u8 x, u8 y)
{
u8 addr = (x + linestarts[y]);
_lcdcmd(LCD_DDRAM | addr);
ddaddr = addr;
}
static void _lcdclear(void)
{
int i;
_lcdcmd(LCD_HOME_CLEAR);
udelay(2000);
for(i=0;i<0x80;i++) {
ddram[i] = ' ';
}
}
static void _lcdscroll(u8 count)
{
int x,y;
_lcdcmd(LCD_HOME_CLEAR);
udelay(2000);
for(y=0;y<(HEIGHT-count);y++) {
_lcdgotoxy(0,y);
for(x=0;x<WIDTH;x++) {
_lcdwrite(ddram[x + linestarts[y+count]]);
}
}
for(;y<HEIGHT;y++) {
for(x=0;x<WIDTH;x++) {
ddram[linestarts[y] + x] = ' ';
}
}
_lcdgoto(linestarts[HEIGHT-1]);
}
void lcd_init(void)
{
cx = cy = 0;
ddaddr = 0;
memset(ddram, ' ', 0x80);
clear32(LCD_PORT, LCD_MASK);
udelay(100000);
_lcdnybble(0, (LCD_FUNCTION_SET | FS_8BIT)>>4);
udelay(10000);
_lcdnybble(0, (LCD_FUNCTION_SET | FS_8BIT)>>4);
udelay(1000);
_lcdnybble(0, (LCD_FUNCTION_SET | FS_8BIT)>>4);
udelay(1000);
_lcdnybble(0, (LCD_FUNCTION_SET | FS_4BIT)>>4);
udelay(1000);
_lcdcmd(LCD_FUNCTION_SET | FS_4BIT | FS_2LINE | FS_5X8);
_lcdcmd(LCD_DISPLAY_ONOFF);
_lcdcmd(LCD_HOME_CLEAR);
udelay(2000);
_lcdcmd(LCD_ENTRY_MODE | EM_INC);
_lcdcmd(LCD_DISPLAY_ONOFF | D_DISPLAY | D_CURSOR);
}
int lcd_putchar(int ic)
{
char c = ic;
// defer newlines to keep last line of LCD full
if(c == '\n') {
cx = 0;
cy++;
if(cy < HEIGHT)
_lcdgotoxy(cx,cy);
} else {
if(cx >= 16) {
cx = 0;
cy++;
if(cy < HEIGHT)
_lcdgotoxy(cx,cy);
}
if(cy >= (2*HEIGHT-1)) {
_lcdclear();
_lcdgoto(linestarts[HEIGHT-1]);
cy = HEIGHT - 1;
cx = 0;
} else if(cy >= HEIGHT) {
_lcdscroll(cy - HEIGHT + 1);
cy = HEIGHT - 1;
cx = 0;
}
_lcdwrite(c);
cx++;
}
return (u8)c;
}
void lcd_setdelay(u32 delay)
{
chardelay = delay;
}
int lcd_puts(const char *s)
{
while(*s) {
lcd_putchar(*s++);
udelay(chardelay);
}
return 0;
}
int lcd_printf( const char *fmt, ...)
{
va_list args;
char buffer[1024];
int i;
va_start(args, fmt);
i = vsprintf(buffer, fmt, args);
va_end(args);
lcd_puts(buffer);
return i;
}
#endif

37
loader/lcd.h Normal file
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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
GPIO LCD display support
(yes, that thing in that youtube video)
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#ifndef __LCD_H__
#define __LCD_H__
#ifdef ENABLE_LCD
#include "types.h"
void lcd_init(void);
int lcd_putchar(int c);
int lcd_puts(const char *s);
void lcd_setdelay(u32 delay);
int lcd_printf( const char *fmt, ...);
#else
#define lcd_init(...)
#define lcd_putchar(...)
#define lcd_puts(...)
#define lcd_setdelay(...)
#define lcd_printf(...)
#endif
#endif

90
loader/loader.ld Normal file
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/*
mini - a Free Software replacement for the Nintendo/BroadOn IOS.
linker script
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcansoft.com>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
OUTPUT_FORMAT("elf32-bigarm")
OUTPUT_ARCH(arm)
EXTERN(_start)
ENTRY(_start)
__base_addr = 0x10400000;
PHDRS
{
init PT_LOAD FLAGS(5);
text PT_LOAD FLAGS(5);
data PT_LOAD FLAGS(6);
bss PT_LOAD FLAGS(6);
}
SECTIONS
{
. = __base_addr;
.init :
{
*(.init)
*(.init.*)
. = ALIGN(4);
} :init
.text :
{
*(.text)
*(.text.*)
*(.gnu.warning)
*(.gnu.linkonce.t*)
*(.glue_7)
*(.glue_7t)
. = ALIGN(4);
} :text
__text_end = . ;
.rodata :
{
*(.rodata)
*all.rodata*(*)
*(.roda)
*(.rodata.*)
*(.gnu.linkonce.r*)
. = ALIGN(4);
} :data
.data :
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
. = ALIGN(4);
} :data
.bss :
{
__bss_start = . ;
*(.dynbss)
*(.gnu.linkonce.b*)
*(.bss*)
*(.sbss*)
*(COMMON)
. = ALIGN(4);
__bss_end = . ;
} :bss
. = ALIGN(4);
__stack_end = .;
__stack_addr = (__stack_end + 0x4000);
__end = __stack_addr ;
}
PROVIDE (__stack_end = __stack_end);
PROVIDE (__stack_addr = __stack_addr);
PROVIDE (__bss_start = __bss_start);
PROVIDE (__bss_end = __bss_end);
PROVIDE (__end = __end);

390
loader/main.c Normal file
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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
Main loader code
Copyright (C) 2008, 2009 Haxx Enterprises <bushing@gmail.com>
Copyright (C) 2008, 2009 Sven Peter <sven@svenpeter.dev>
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
Copyright (C) 2009 Andre Heider "dhewg" <dhewg@wiibrew.org>
Copyright (C) 2009 John Kelley <wiidev@kelley.ca>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#include "types.h"
#include "utils.h"
#include "start.h"
#include "hollywood.h"
#include "sdhc.h"
#include "string.h"
#include "memory.h"
#include "elf.h"
#include "gecko.h"
#include "ff.h"
#include "lcd.h"
#include "gpio.h"
#define BOOT_FILE "/bootmii/armboot.bin"
extern void *__end;
extern const char *bootmii_version;
static FATFS fatfs;
static void hexline(void *addr, int len)
{
u8 *p = (u8*)addr;
while(len--) {
gecko_printf("%02x",*p++);
}
}
static void printhdr(ioshdr *hdr) {
gecko_printf("ARMBOOT header (@%p):\n",hdr);
gecko_printf(" Header size: %08x\n", hdr->hdrsize);
gecko_printf(" Loader size: %08x\n", hdr->loadersize);
gecko_printf(" ELF size: %08x\n", hdr->elfsize);
gecko_printf(" Argument: %08x\n", hdr->argument);
gecko_printf(" ELF at %p\n", (u8 *) hdr + hdr->hdrsize + hdr->loadersize);
}
static void loadelf(u8 *elf) {
gecko_puts("Loading ELF...\n");
if(memcmp("\x7F" "ELF\x01\x02\x01\x61\x01",elf,9)) {
gecko_printf("Invalid ELF header:\n");
hexline(elf, 9);
gecko_printf("\n");
panic(0xE3);
}
Elf32_Ehdr *ehdr = (Elf32_Ehdr*)elf;
if(ehdr->e_phoff == 0) {
gecko_printf("ELF has no program headers!\n");
panic(0xE4);
}
int count = ehdr->e_phnum;
Elf32_Phdr *phdr = (Elf32_Phdr*)(elf + ehdr->e_phoff);
gecko_printf("PHDRS at %p\n",phdr);
while(count--)
{
if(phdr->p_type != PT_LOAD) {
gecko_printf(" Skipping PHDR of type %d\n",phdr->p_type);
} else {
void *src = elf + phdr->p_offset;
gecko_printf(" LOAD %p -> %x [0x%x]\n",src, phdr->p_paddr, phdr->p_filesz);
memcpy((void *)phdr->p_paddr, src, phdr->p_filesz);
}
phdr++;
}
}
static void turn_stuff_on(void)
{
clear32(HW_GPIO1OUT, 0x10);
udelay(100);
set32(HW_RESETS, 0x7ffffcf);
}
static void reset_audio(void)
{
mask32(HW_DIFLAGS, 0x180, 0x100);
clear32(0xd8001d0, 0x80000000);
udelay(2);
clear32(0xd8001d0, 0x40000000);
clear32(0xd8001d0, 0x10000000);
mask32(0xd8001cc, 0x7ffffff, 0x4b0ffce);
udelay(10);
set32(0xd8001d0, 0x40000000);
udelay(500);
set32(0xd8001d0, 0x80000000);
udelay(2);
}
static void boot2_init1()
{
//func_ffff5d08
u32 reg = read32(0xd8001c8);
if((reg & 0xc0000000) == 0xc0000000)
return;
clear32(0xd8001c8, 0x80000000);
udelay(2);
clear32(0xd8001c8, 0x40000000);
udelay(10);
set32(0xd8001c8, 0x40000000);
udelay(50);
set32(0xd8001c8, 0x80000000);
udelay(2);
}
static void boot2_init2(u32 hlywdVerHi)
{
//func_ffff5c40
write32(0xd800088, 0xFE);
udelay(2);
clear32(0xd8001d8, 0x80000000);
udelay(2);
clear32(0xd8001d8, 0x40000000);
udelay(10);
set32(0xd8001d8, 0x40000000);
udelay(50);
set32(0xd8001d8, 0x80000000);
udelay(2);
write32(0xd800088, 0xF6);
udelay(50);
write32(0xd800088, 0xF4);
udelay(1);
write32(0xd800088, 0xF0);
udelay(1);
write32(0xd800088, 0x70);
udelay(1);
write32(0xd800088, 0x60);
udelay(1);
write32(0xd800088, 0x40);
udelay(1);
write32(0xd800088, 0);
udelay(1);
write32(0xd0400b4, 0x2214);
if (hlywdVerHi)
write32(0xd0400b0, 0x20600);
else
write32(0xd0400b0, 0x20400);
write32(0xd0400a4, 0x26);
udelay(1);
write32(0xd0400a4, 0x2026);
udelay(1);
write32(0xd0400a4, 0x4026);
udelay(20);
write32(0xd0400cc, 0x111);
}
static void setup_gpios()
{
write32(HW_GPIO1OWNER, GP_OWNER_PPC);
mask32(HW_GPIO1OUT, GP_ARM_OUTPUTS, GP_ARM_DEFAULT_ON);
write32(HW_GPIO1DIR, GP_ARM_OUTPUTS);
mask32(HW_GPIO1BOUT, GP_PPC_OUTPUTS, GP_PPC_DEFAULT_ON);
write32(HW_GPIO1BDIR, GP_PPC_OUTPUTS);
write32(HW_GPIO1ENABLE, GP_ALL);
udelay(2000);
write32(HW_GPIO1INTLVL, 0);
write32(HW_GPIO1INTFLAG, GP_ALL);
write32(HW_GPIO1INTENABLE, 0);
write32(HW_GPIO1BINTLVL, 0);
write32(HW_GPIO1BINTFLAG, GP_ALL);
write32(HW_GPIO1BINTENABLE, 0);
}
static void hardware_setup(void)
{
u8 hwood_ver, hwood_hi, hwood_lo;
hwood_ver = read32(HW_VERSION) & 0xFF;
hwood_hi = hwood_ver >> 4;
hwood_lo = hwood_ver & 0xF;
debug_output(0x03);
set32(HW_EXICTRL, EXICTRL_ENABLE_EXI);
mem_protect(1, (void*)0x13420000, (void*)0x1fffffff);
clear32(HW_EXICTRL, 0x10);
if(hwood_hi == 0)
write32(0xd8b0010, 0);
write32(0xd8b0010, 0);
if(hwood_hi == 1 && hwood_lo == 0)
mask32(0xd800140, 0x0000FFF0, 1);
set32(0xd80018c, 0x400);
set32(0xd80018c, 0x800);
reset_audio();
boot2_init1();
boot2_init2(hwood_hi);
setup_gpios();
turn_stuff_on();
write32(0xd8001e0, 0x65244A);
write32(0xd8001e4, 0x46A024);
debug_output(0x73);
clear32(HW_GPIO1OWNER, 0x10);
set32(HW_GPIO1DIR, 0x10);
}
void *_main(void *base)
{
FRESULT fres;
ioshdr *hdr = (ioshdr*)base;
ioshdr *filehdr;
u8 *elf;
u32 bypass = 0;
elf = (u8*) base;
elf += hdr->hdrsize + hdr->loadersize;
debug_output(0xF0);
lcd_init();
hardware_setup();
debug_output(0xF1);
if (read32(0x150effc) == 0x53544655)
write32(0x150effc, 0);
else
gecko_init();
lcd_puts("BootMii\n");
lcd_puts("\n");
gecko_puts("\n\nBootMii v");
gecko_puts(bootmii_version);
gecko_puts("\n");
gecko_puts("Copyright (C) 2008-2010 Team Twiizers.\n");
gecko_puts("Licensed under the GNU GPL version 2.\n");
printhdr(hdr);
if(hdr->argument == 0x42) {
bypass = 1;
goto boot2;
}
if (read32(0x150f000) == 0x424d454d) {
gecko_puts("Trying to boot ELF from memory\n");
filehdr = (ioshdr *) read32(0x150f004);
write32(0x150f000, 0);
write32(0x150f004, 0);
printhdr(filehdr);
void *entry = (void*)(((u32)filehdr) + filehdr->hdrsize);
lcd_puts(" ~ ARMBOOT \n");
gecko_printf("Launching ARMBOOT @ %p\n\n",entry);
debug_output(0xF3);
return entry;
}
gecko_puts("Trying to mount SD...\n");
sdhc_init();
fres = f_mount(0, &fatfs);
if(fres != FR_OK) {
gecko_printf("Error %d while trying to mount SD\n", fres);
debug_output(0x12);
debug_output(fres&0xFF);
goto boot2;
}
//debug_output(0xF2);
gecko_puts("Trying to open SD:" BOOT_FILE "\n");
FIL fd;
u32 read;
fres = f_open(&fd, BOOT_FILE, FA_READ);
if(fres != FR_OK) {
gecko_printf("Error %d while trying to open file\n", fres);
//debug_output(0x13);
//debug_output(fres&0xFF);
goto boot2;
}
lcd_puts(".");
debug_output(0xF2);
filehdr = (ioshdr *)ALIGN_FORWARD(((u32)&__end) + 0x100, 0x100);
gecko_printf("Trying to read ARMBOOT header to %p\n", filehdr);
fres = f_read(&fd, filehdr, sizeof(ioshdr), &read);
if(fres != FR_OK) {
gecko_printf("Error %d while trying to read file header\n", fres);
//debug_output(0x14);
//debug_output(fres&0xFF);
goto boot2;
}
if(read != sizeof(ioshdr)) {
gecko_printf("Got %d bytes, expected %d\n", read, sizeof(ioshdr));
//debug_output(0x24);
goto boot2;
}
lcd_puts(".");
//debug_output(0xF5);
printhdr(filehdr);
u32 totalsize = filehdr->hdrsize + filehdr->loadersize + filehdr->elfsize;
gecko_printf("Total ARMBOOT size: 0x%x\n", totalsize);
gecko_printf("Trying to read ARMBOOT to %p\n", filehdr);
fres = f_read(&fd, filehdr+1, totalsize-sizeof(ioshdr), &read);
if(fres != FR_OK) {
gecko_printf("Error %d while trying to read file header\n", fres);
//debug_output(0x15);
//debug_output(fres&0xFF);
goto boot2;
}
if(read != (totalsize-sizeof(ioshdr))) {
gecko_printf("Got %d bytes, expected %d\n", read, (totalsize-sizeof(ioshdr)));
//debug_output(0x25);
goto boot2;
}
lcd_puts(".");
//debug_output(0xF6);
gecko_puts("ARMBOOT read\n");
void *entry = (void*)(((u32)filehdr) + filehdr->hdrsize);
lcd_puts(" ~ ARMBOOT \n");
gecko_printf("Launching ARMBOOT @ %p\n\n",entry);
debug_output(0xF3);
return entry;
boot2:
debug_output(0xC8);
if(bypass) {
gecko_puts("In bypass mode, loading boot2\n");
} else {
gecko_puts("Couldn't load from SD, falling back to boot2\n");
set32(HW_GPIO1BOUT, GP_SLOTLED);
udelay(30000);
clear32(HW_GPIO1BOUT, GP_SLOTLED);
udelay(50000);
set32(HW_GPIO1BOUT, GP_SLOTLED);
udelay(30000);
clear32(HW_GPIO1BOUT, GP_SLOTLED);
udelay(50000);
}
lcd_puts(" ~ BOOT2 \n");
loadelf(elf);
debug_output(0xC9);
gecko_puts("Starting boot2...\n\n");
return (void *) 0xFFFF0000;
}

1
loader/memory.c Symbolic link
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../mini/memory.c

1
loader/memory.h Symbolic link
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@ -0,0 +1 @@
../mini/memory.h

1
loader/memory_asm.S Symbolic link
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@ -0,0 +1 @@
../mini/memory_asm.S

1
loader/sdhc.c Symbolic link
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@ -0,0 +1 @@
../mini/sdhc.c

1
loader/sdhc.h Symbolic link
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@ -0,0 +1 @@
../mini/sdhc.h

1
loader/sdmmc.c Symbolic link
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@ -0,0 +1 @@
../mini/sdmmc.c

1
loader/sdmmc.h Symbolic link
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../mini/sdmmc.h

78
loader/start.S Normal file
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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
system startup
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
.arm
.extern _main
.extern __got_start
.extern __got_end
.extern __bss_start
.extern __bss_end
.extern __stack_addr
.globl _start
.globl debug_output
.section .init
_start:
@ Get loader base from parent
mov r4, r0
@ Output 0x42 to the debug port
mov r0, #0x42
bl debug_output
@ Set up a stack
ldr sp, =__stack_addr
@ Output 0x43 to the debug port
mov r0, #0x43
bl debug_output
@ clear BSS
ldr r1, =__bss_start
ldr r2, =__bss_end
mov r3, #0
bss_loop:
@ check for the end
cmp r1, r2
bge done_bss
@ clear the word and move on
str r3, [r1]
add r1, r1, #4
b bss_loop
done_bss:
mov r0, #0x44
bl debug_output
@ take the plunge
mov r0, r4
ldr r1, =_main+1
mov lr, pc
bx r1
@ _main returned! Go to whatever address it returned...
mov pc, r0
.pool
debug_output:
@ load address of port
mov r3, #0xd800000
@ load old value
ldr r2, [r3, #0xe0]
@ clear debug byte
bic r2, r2, #0xFF0000
@ insert new value
and r0, r0, #0xFF
orr r2, r2, r0, LSL #16
@ store back
str r2, [r3, #0xe0]
bx lr

1
loader/start.h Symbolic link
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../mini/start.h

1
loader/string.c Symbolic link
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../mini/string.c

1
loader/string.h Symbolic link
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../mini/string.h

1
loader/types.h Symbolic link
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../mini/types.h

1
loader/utils.c Symbolic link
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../mini/utils.c

1
loader/utils.h Symbolic link
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../mini/utils.h

1
loader/version.c Normal file
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const char *bootmii_version = "%VERSION%";

1
loader/vsprintf.c Symbolic link
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../mini/vsprintf.c

1
loader/vsprintf.h Symbolic link
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../mini/vsprintf.h

1
mini Submodule

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Subproject commit befb64ce1cd493946c9a9a0a412262a998f478d9

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resetstub/.gitignore vendored Normal file
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*.elf

23
resetstub/Makefile Normal file
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include ../starlet.mk
CFLAGS += -fpic
LDSCRIPT = stub.ld
LIBS =
TARGET = resetstub-sym.elf
TARGET_STRIPPED = resetstub.elf
OBJS = stub.o
include ../common.mk
all: $(TARGET_STRIPPED)
$(TARGET_STRIPPED): $(TARGET)
@echo "STRIP $@"
@$(STRIP) $< -o $@
clean: myclean
myclean:
-rm -f $(TARGET) $(TARGET_STRIPPED)

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resetstub/stub.S Normal file
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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
dummy reset stub
Copyright (C) 2008, 2009 Sven Peter <sven@svenpeter.dev>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
.global _start
.arm
_start:
# enable boot0 memory mapping
ldr r0, =0x0d80018c
ldr r1, =0x1000
ldr r2, [r0]
bic r2, r1
str r2, [r0]
# setup boot0 memory mirror to x'ffff_0000
ldr r0, =0x0d800060
mov r2, #0x20
ldr r1, [r0]
bic r1, r2
str r1, [r0]
# jump to boot0
ldr r0, =0xffff0000
bx r0

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
reset stub linker script
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcansoft.com>
Copyright (C) 2009 Andre Heider "dhewg" <dhewg@wiibrew.org>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
OUTPUT_FORMAT("elf32-bigarm")
OUTPUT_ARCH(arm)
EXTERN(_start)
EXTERN(__ipc_info)
ENTRY(_start)
MEMORY {
ram : ORIGIN = 0x93ff0000, LENGTH = 64K
}
SECTIONS
{
.init :
{
*(.init)
. = ALIGN(4);
} >ram
.text :
{
*(.text*)
*(.text.*)
*(.gnu.warning)
*(.gnu.linkonce.t*)
*(.glue_7)
*(.glue_7t)
. = ALIGN(4);
} >ram
.rodata :
{
*(.rodata)
*all.rodata*(*)
*(.roda)
*(.rodata.*)
*(.gnu.linkonce.r*)
. = ALIGN(4);
} >ram
.data :
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
. = ALIGN(4);
} >ram
.bss :
{
__bss_start = . ;
*(.dynbss)
*(.gnu.linkonce.b*)
*(.bss*)
*(COMMON)
. = ALIGN(4);
__bss_end = . ;
} >ram
/DISCARD/ :
{
*(.ARM.exidx*)
*(.ARM.extab*)
}
}

1
starlet.mk Symbolic link
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mini/starlet.mk

6
stub/.gitignore vendored Normal file
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*.d
*.bin
*.elf
*.o
*.map

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stub/Makefile Normal file
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include ../starlet.mk
CFLAGS += -fpic
LDSCRIPT = stub.ld
LIBS = -lgcc
TARGET = bootmii.elf
TARGET_BIN = bootmii.bin
OBJS = start.o stub.o loader.o utils.o
include ../common.mk
all: $(TARGET_BIN)
$(TARGET_BIN): $(TARGET)
@echo " OBJCPY $@"
@$(OBJCOPY) -O binary $< $@
loader.o : ../loader/bootmii.elf
@echo " BIN2O $@"
@$(BIN2S) -a 32 $< | $(AS) -o $(@)
clean: myclean
myclean:
-rm -f $(TARGET_BIN)

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stub/elf.h Normal file
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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
ELF structures
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#ifndef __ELF_H__
#define __ELF_H__
#include "types.h"
#define EI_NIDENT 16
typedef struct {
unsigned char e_ident[EI_NIDENT];
u16 e_type;
u16 e_machine;
u32 e_version;
void *e_entry;
u32 e_phoff;
u32 e_shoff;
u32 e_flags;
u16 e_ehsize;
u16 e_phentsize;
u16 e_phnum;
u16 e_shentsize;
u16 e_shnum;
u16 e_shtrndx;
} Elf32_Ehdr;
typedef struct {
u32 p_type;
u32 p_offset;
void *p_vaddr;
void *p_paddr;
u32 p_filesz;
u32 p_memsz;
u32 p_flags;
u32 p_align;
} Elf32_Phdr;
#define PT_NULL 0
#define PT_LOAD 1
#define PT_DYNAMIC 2
#define PT_INTERP 3
#define PT_NOTE 4
#define PT_SHLIB 5
#define PT_PHDR 6
#endif

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
Hollywood register definitions
Copyright (C) 2008, 2009 Haxx Enterprises <bushing@gmail.com>
Copyright (C) 2008, 2009 Sven Peter <sven@svenpeter.dev>
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
Copyright (C) 2008, 2009 John Kelley <wiidev@kelley.ca>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#ifndef __HOLLYWOOD_H__
#define __HOLLYWOOD_H__
/* Hollywood Registers */
#define HW_REG_BASE 0xd800000
#define HW_TIMER (HW_REG_BASE + 0x010)
#define HW_IRQENABLE (HW_REG_BASE + 0x03c)
#define HW_MEMMIRR (HW_REG_BASE + 0x060)
#define HW_GPIO1ENABLE (HW_REG_BASE + 0x0dc)
#define HW_GPIO1OUT (HW_REG_BASE + 0x0e0)
#define HW_GPIO1DIR (HW_REG_BASE + 0x0e4)
#define HW_GPIO1IN (HW_REG_BASE + 0x0e8)
#define HW_GPIO1INTLVL (HW_REG_BASE + 0x0ec)
#define HW_GPIO1INTFLAG (HW_REG_BASE + 0x0f0)
#define HW_GPIO1OWNER (HW_REG_BASE + 0x0fc)
#endif

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
system startup
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
.arm
.extern _main
.extern __got_start
.extern __got_end
.extern __bss_start
.extern __bss_end
.extern __stack_addr
.globl _start
.globl debug_output
.section .init
_start:
@ Get real address of _start
sub r4, pc, #8
@ Subtract offset to get the address that we were loaded at
ldr r0, =_start
sub r4, r4, r0
@ Output 0x42 to the debug port
mov r0, #0x42
bl debug_output
@ Set up a stack
ldr sp, =__stack_addr
add sp, r4
@ perform boot2v3 memory controller poke
bl memctrl_do_sub_sub_poke
@ Output 0x43 to the debug port
mov r0, #0x43
bl debug_output
@ check for a previous GOT relocation
ldr r1, [pc, #_is_reloced - . - 8]
cmp r1, #0
bne done_got
@ relocate the GOT entries
ldr r1, =__got_start
add r1, r4
ldr r2, =__got_end
add r2, r4
got_loop:
@ check for the end
cmp r1, r2
beq done_got
@ read the GOT entry
ldr r3, [r1]
@ add our base address
add r3, r4
str r3, [r1]
@ move on
add r1, r1, #4
b got_loop
done_got:
@ note that we have already reloced GOT
mov r1, #1
str r1, [pc, #_is_reloced - . - 8]
@ clear BSS
ldr r1, =__bss_start
add r1, r4
ldr r2, =__bss_end
add r2, r4
mov r3, #0
bss_loop:
@ check for the end
cmp r1, r2
beq done_bss
@ clear the word and move on
str r3, [r1]
add r1, r1, #4
b bss_loop
done_bss:
mov r0, #0x44
bl debug_output
@ take the plunge
mov r0, r4
bl _main
@ _main returned! Go to whatever address it returned...
mov r1, r0
mov r0, r4
mov pc, r1
_is_reloced:
.long 0
memctrl_do_sub_sub_poke:
stmdb sp!, {lr}
ldr r0, =0x163 @ reg_address
mov r1, #0x4C @ address
bl memctrl_sub_poke
ldr r0, =0x163 @ read address back (flush?)
bl memctrl_sub_peek
ldr r0, =0x162 @ reg_data
mov r1, #1 @ data
bl memctrl_sub_poke
ldmia sp!, {pc}
memctrl_sub_poke:
ldr r2, =0xD8B4000
strh r0, [r2, #0x74] @ reg_address <= address
ldrh r0, [r2, #0x74] @ read reg_address back
strh r1, [r2, #0x76] @ reg_data <= data
mov pc, lr
memctrl_sub_peek:
ldr r2, =0xD8B4000
strh r0, [r2, #0x74] @ reg_address <= address
ldrh r0, [r2, #0x74] @ read reg_address back
ldrh r0, [r2, #0x76] @ data <= reg_data
mov pc, lr
.pool
debug_output:
@ load address of port
mov r3, #0xd800000
@ load old value
ldr r2, [r3, #0xe0]
@ clear debug byte
bic r2, r2, #0xFF0000
@ insert new value
and r0, r0, #0xFF
orr r2, r2, r0, LSL #16
@ store back
str r2, [r3, #0xe0]
mov pc, lr

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
system startup
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#ifndef __START_H__
#define __START_H__
#include "types.h"
void debug_output(u8 byte);
#endif

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stub/stub.c Normal file
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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
ELF loader stub
Copyright (C) 2008, 2009 Haxx Enterprises <bushing@gmail.com>
Copyright (C) 2008, 2009 Sven Peter <sven@svenpeter.dev>
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
Copyright (C) 2009 Andre Heider "dhewg" <dhewg@wiibrew.org>
Copyright (C) 2009 John Kelley <wiidev@kelley.ca>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#include "types.h"
#include "utils.h"
#include "start.h"
#include "hollywood.h"
#include "elf.h"
typedef struct {
u32 hdrsize;
u32 loadersize;
u32 elfsize;
u32 argument;
} ioshdr;
static inline void _memcpy(void *dst, const void *src, size_t len)
{
size_t i;
for (i = 0; i < len; i++)
((unsigned char *)dst)[i] = ((unsigned char *)src)[i];
}
static inline int memcmp(const char *s1, const u8 *s2, size_t len)
{
size_t i;
for (i = 0; i < len; i++)
if (s1[i] != s2[i]) return s1[i] - s2[i];
return 0;
}
void *loadelf(const u8 *elf) {
if(memcmp("\x7F" "ELF\x01\x02\x01",elf,7)) {
panic(0xE3);
}
Elf32_Ehdr *ehdr = (Elf32_Ehdr*)elf;
if(ehdr->e_phoff == 0) {
panic(0xE4);
}
int count = ehdr->e_phnum;
Elf32_Phdr *phdr = (Elf32_Phdr*)(elf + ehdr->e_phoff);
while(count--)
{
if(phdr->p_type == PT_LOAD) {
const void *src = elf + phdr->p_offset;
_memcpy(phdr->p_paddr, src, phdr->p_filesz);
}
phdr++;
}
return ehdr->e_entry;
}
static inline void mem_setswap(void)
{
u32 d = read32(HW_MEMMIRR);
if(!(d & 0x20))
write32(HW_MEMMIRR, d | 0x20);
}
extern const u8 bootmii_elf[];
extern const u8 bootmii_elf_end[];
extern const u32 bootmii_elf_size;
#define GP_POWER 0x000001
void *_main(void *base)
{
ioshdr *hdr = (ioshdr*)base;
u8 *elf;
void *entry;
elf = (u8*) base;
elf += hdr->hdrsize + hdr->loadersize;
debug_output(0xF1);
mem_setswap();
write32(HW_IRQENABLE, 0);
set32(HW_GPIO1ENABLE, GP_POWER);
clear32(HW_GPIO1DIR, GP_POWER);
clear32(HW_GPIO1OWNER, GP_POWER);
set32(HW_GPIO1INTLVL, GP_POWER);
udelay(1000);
set32(HW_GPIO1INTFLAG, GP_POWER);
udelay(400000);
if(read32(HW_GPIO1INTFLAG) & GP_POWER) {
debug_output(0xC0);
loadelf(elf);
debug_output(0xC1);
return (void *) 0xFFFF0000;
}
// NOTE: END CRITICAL ZONE
debug_output(0xF2);
entry = loadelf(bootmii_elf);
debug_output(0xF3);
return entry;
}

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
ELF loader stub linker script
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcansoft.com>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
OUTPUT_FORMAT("elf32-bigarm")
OUTPUT_ARCH(arm)
EXTERN(_start)
ENTRY(_start)
__base_addr = 0;
SECTIONS
{
. = __base_addr;
.header :
{
__header = .;
/* Entry point (offset) */
LONG(__code_start);
/* Loader size */
LONG(__loader_size);
/* ELF size */
LONG(0);
/* Boot argument? */
LONG(0);
. = ALIGN(16);
}
__code_start = .;
.init :
{
*(.init)
. = ALIGN(4);
}
.got :
{
__got_start = .;
*(.got.*)
*(.got)
. = ALIGN(4);
__got_end = . ;
}
.text :
{
*(.text)
*(.text.*)
*(.gnu.warning)
*(.gnu.linkonce.t*)
*(.glue_7)
*(.glue_7t)
. = ALIGN(4);
}
__text_end = . ;
.rodata :
{
*(.rodata)
*all.rodata*(*)
*(.roda)
*(.rodata.*)
*(.gnu.linkonce.r*)
. = ALIGN(4);
}
.data :
{
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
. = ALIGN(4);
}
.bss :
{
__bss_start = . ;
*(.dynbss)
*(.gnu.linkonce.b*)
*(.bss*)
*(.sbss*)
*(COMMON)
. = ALIGN(32);
__bss_end = . ;
}
}
__stack_end = (__bss_end);
__stack_addr = (__bss_end + 0x100);
__end = __stack_addr ;
__loader_size = __end - __code_start;
PROVIDE (__stack_end = __stack_end);
PROVIDE (__stack_addr = __stack_addr);
PROVIDE (__got_start = __got_start);
PROVIDE (__got_end = __got_end);
PROVIDE (__bss_start = __bss_start);
PROVIDE (__bss_end = __bss_end);

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
types, memory areas, etc
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#ifndef __TYPES_H__
#define __TYPES_H__
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned long long u64;
typedef signed char s8;
typedef signed short s16;
typedef signed int s32;
typedef signed long long s64;
typedef volatile unsigned char vu8;
typedef volatile unsigned short vu16;
typedef volatile unsigned int vu32;
typedef volatile unsigned long long vu64;
typedef volatile signed char vs8;
typedef volatile signed short vs16;
typedef volatile signed int vs32;
typedef volatile signed long long vs64;
typedef s32 size_t;
#define NULL ((void *)0)
#endif

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
random utilities
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#include "types.h"
#include "utils.h"
#include "hollywood.h"
#include "start.h"
void delay(u32 d)
{
write32(HW_TIMER, 0);
while(read32(HW_TIMER) < d);
}
void panic(u8 v)
{
while(1) {
debug_output(v);
udelay(500000);
debug_output(0);
udelay(500000);
}
}

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/*
bootmii - a Free Software replacement for the Nintendo/BroadOn boot2.
random utilities
Copyright (C) 2008, 2009 Hector Martin "marcan" <marcan@marcan.st>
# This code is licensed to you under the terms of the GNU GPL, version 2;
# see file COPYING or http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt
*/
#ifndef __UTILS_H__
#define __UTILS_H__
static inline u32 read32(u32 addr)
{
u32 data;
__asm__ volatile ("ldr\t%0, [%1]" : "=r" (data) : "r" (addr));
return data;
}
static inline void write32(u32 addr, u32 data)
{
__asm__ volatile ("str\t%0, [%1]" : : "r" (data), "r" (addr));
}
static inline u32 set32(u32 addr, u32 set)
{
u32 data;
__asm__ volatile (
"ldr\t%0, [%1]\n"
"\torr\t%0, %2\n"
"\tstr\t%0, [%1]"
: "=&r" (data)
: "r" (addr), "r" (set)
);
return data;
}
static inline u32 clear32(u32 addr, u32 clear)
{
u32 data;
__asm__ volatile (
"ldr\t%0, [%1]\n"
"\tbic\t%0, %2\n"
"\tstr\t%0, [%1]"
: "=&r" (data)
: "r" (addr), "r" (clear)
);
return data;
}
static inline u32 mask32(u32 addr, u32 clear, u32 set)
{
u32 data;
__asm__ volatile (
"ldr\t%0, [%1]\n"
"\tbic\t%0, %3\n"
"\torr\t%0, %2\n"
"\tstr\t%0, [%1]"
: "=&r" (data)
: "r" (addr), "r" (set), "r" (clear)
);
return data;
}
static inline u16 read16(u32 addr)
{
u32 data;
__asm__ volatile ("ldrh\t%0, [%1]" : "=r" (data) : "r" (addr));
return data;
}
static inline void write16(u32 addr, u16 data)
{
__asm__ volatile ("strh\t%0, [%1]" : : "r" (data), "r" (addr));
}
static inline u16 set16(u32 addr, u16 set)
{
u16 data;
__asm__ volatile (
"ldrh\t%0, [%1]\n"
"\torr\t%0, %2\n"
"\tstrh\t%0, [%1]"
: "=&r" (data)
: "r" (addr), "r" (set)
);
return data;
}
static inline u16 clear16(u32 addr, u16 clear)
{
u16 data;
__asm__ volatile (
"ldrh\t%0, [%1]\n"
"\tbic\t%0, %2\n"
"\tstrh\t%0, [%1]"
: "=&r" (data)
: "r" (addr), "r" (clear)
);
return data;
}
static inline u16 mask16(u32 addr, u16 clear, u16 set)
{
u16 data;
__asm__ volatile (
"ldrh\t%0, [%1]\n"
"\tbic\t%0, %3\n"
"\torr\t%0, %2\n"
"\tstrh\t%0, [%1]"
: "=&r" (data)
: "r" (addr), "r" (set), "r" (clear)
);
return data;
}
static inline u8 read8(u32 addr)
{
u32 data;
__asm__ volatile ("ldrb\t%0, [%1]" : "=r" (data) : "r" (addr));
return data;
}
static inline void write8(u32 addr, u8 data)
{
__asm__ volatile ("strb\t%0, [%1]" : : "r" (data), "r" (addr));
}
static inline u8 set8(u32 addr, u8 set)
{
u8 data;
__asm__ volatile (
"ldrb\t%0, [%1]\n"
"\torr\t%0, %2\n"
"\tstrb\t%0, [%1]"
: "=&r" (data)
: "r" (addr), "r" (set)
);
return data;
}
static inline u8 clear8(u32 addr, u8 clear)
{
u8 data;
__asm__ volatile (
"ldrb\t%0, [%1]\n"
"\tbic\t%0, %2\n"
"\tstrb\t%0, [%1]"
: "=&r" (data)
: "r" (addr), "r" (clear)
);
return data;
}
static inline u8 mask8(u32 addr, u8 clear, u8 set)
{
u8 data;
__asm__ volatile (
"ldrb\t%0, [%1]\n"
"\tbic\t%0, %3\n"
"\torr\t%0, %2\n"
"\tstrb\t%0, [%1]"
: "=&r" (data)
: "r" (addr), "r" (set), "r" (clear)
);
return data;
}
#define udelay(x) delay((x) * 19 / 10)
void delay(u32 d);
void panic(u8 v);
#endif