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add original crt0 includes to initialize main memory

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git-svn-id: file:///Users/lillianskinner/Downloads/platinum/twl/TwlIPL/trunk@19 b08762b0-b915-fc4b-9d8c-17b2551a87ff
This commit is contained in:
yutaka 2007-09-07 09:04:20 +00:00
parent 4fcb10bb96
commit 0bcd0c250a
11 changed files with 1231 additions and 4 deletions
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2
build/buildtools/commondefs
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@ -163,7 +163,7 @@ ifeq ($(CODEGEN_PROC),ARM9)
FIRM_LIBS_BASE ?= \
libos \
# libmi \
libmi \
# libgcd \
# libacsign \

4
build/libraries/Makefile
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@ -23,9 +23,9 @@ include $(TWLFIRM_ROOT)/build/buildtools/commondefs
SUBDIRS = \
os \
mi \
init \
# syscall \
# init \
# mi \
# nvram \
# gcd \
# aes \

58
build/libraries/init/ARM7/Makefile Normal file
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@ -0,0 +1,58 @@
#! make -f
#----------------------------------------------------------------------------
# Project: TwlIPL - libraries - init
# File: Makefile
#
# Copyright 2007 Nintendo. All rights reserved.
#
# These coded instructions, statements, and computer programs contain
# proprietary information of Nintendo of America Inc. and/or Nintendo
# Company Ltd., and are protected by Federal copyright law. They may
# not be disclosed to third parties or copied or duplicated in any form,
# in whole or in part, without the prior written consent of Nintendo.
#
# $Date:: $
# $Rev:$
# $Author:$
#----------------------------------------------------------------------------
SUBDIRS =
#SUBMAKES = Makefile.CALLTRACE \
# Makefile.FUNCTIONCOST
#----------------------------------------------------------------------------
# build ARM & THUMB libraries
FIRM_CODEGEN_ALL ?= TRUE
# Codegen for sub processer
FIRM_PROC = ARM7
SRCS = crt0.c \
TARGET_OBJ = crt0.o
#----------------------------------------------------------------------------
# DEBUG版ビルドの場合、RELEASE版でビルドして
# DEBUG版のライブラリを装います。
ifdef NITRO_DEBUG
NITRO_BUILD_TYPE = RELEASE
endif
include $(TWLFIRM_ROOT)/build/buildtools/commondefs
INSTALL_TARGETS = $(TARGETS)
INSTALL_DIR = $(FIRM_INSTALL_LIBDIR)
#----------------------------------------------------------------------------
do-build: $(TARGETS)
include $(TWLFIRM_ROOT)/build/buildtools/modulerules
#===== End of Makefile =====

266
build/libraries/init/ARM7/crt0.c Normal file
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@ -0,0 +1,266 @@
/*---------------------------------------------------------------------------*
Project: TwlIPL - libraries - init
File: crt0.c
Copyright 2007 Nintendo. All rights reserved.
These coded instructions, statements, and computer programs contain
proprietary information of Nintendo of America Inc. and/or Nintendo
Company Ltd., and are protected by Federal copyright law. They may
not be disclosed to third parties or copied or duplicated in any form,
in whole or in part, without the prior written consent of Nintendo.
$Date:: $
$Rev$
$Author$
*---------------------------------------------------------------------------*/
#include <nitro/code32.h>
#include <firm.h>
extern void TwlMain(void);
extern void OS_IrqHandler(void);
extern void *const _start_ModuleParams[];
static void do_autoload(void);
static void detect_main_memory_size(void);
void _start(void);
void _start_AutoloadDoneCallback(void *argv[]);
extern void __call_static_initializers(void);
extern void _fp_init(void);
// from LCF
extern unsigned long SDK_IRQ_STACKSIZE[];
extern void SDK_STATIC_BSS_START(void); // static bss start address
extern void SDK_STATIC_BSS_END(void); // static bss start address
extern void SDK_AUTOLOAD_START(void); // autoload data will start from here
extern void SDK_AUTOLOAD_LIST(void); // start pointer to autoload information
extern void SDK_AUTOLOAD_LIST_END(void); // end pointer to autoload information
// volatile parameters in IPL's work memory
#define IPL_PARAM_CARD_ROM_HEADER 0x023FE940
#define IPL_PARAM_DOWNLOAD_PARAMETER 0x023FE904
//---- IRQ+SVC stack size in boot (this area is not cleared)
#define INITi_Initial_Stack 0x100
/*---------------------------------------------------------------------------*
Name: _start
Description: Start up
Arguments: None
Returns: None.
*---------------------------------------------------------------------------*/
SDK_WEAK_SYMBOL asm void _start( void )
{
//---- set IME = 0
// ( use that LSB of HW_REG_BASE equal to 0 )
mov r12, #HW_REG_BASE
str r12, [r12, #REG_IME_OFFSET]
//---- initialize stack pointer
// SVC mode
mov r0, #HW_PSR_SVC_MODE
msr cpsr_c, r0
ldr sp, =HW_PRV_WRAM_SVC_STACK_END
// IRQ mode
mov r0, #HW_PSR_IRQ_MODE
msr cpsr_c, r0
ldr r0, =HW_PRV_WRAM_IRQ_STACK_END
mov sp, r0
// System mode
ldr r1, =SDK_IRQ_STACKSIZE
sub r1, r0, r1
mov r0, #HW_PSR_SYS_MODE
msr cpsr_csfx, r0
sub sp, r1, #4 // 4byte for stack check code
#if 0
// move parameters from IPL's work memory to shared area
ldr r0, =IPL_PARAM_CARD_ROM_HEADER
ldr r1, =HW_CARD_ROM_HEADER
add r2, r1, #HW_CARD_ROM_HEADER_SIZE
@1_1:
ldr r3, [r0], #4
str r3, [r1], #4
cmp r1, r2
bmi @1_1
ldr r0, =IPL_PARAM_DOWNLOAD_PARAMETER
add r2, r1, #HW_DOWNLOAD_PARAMETER_SIZE
@1_2:
ldr r3, [r0], #4
str r3, [r1], #4
cmp r1, r2
bmi @1_2
#endif
//---- load autoload block and initialize bss
bl do_autoload
//---- fill static static bss with 0
ldr r0, =_start_ModuleParams
ldr r1, [r0, #12] // BSS segment start
ldr r2, [r0, #16] // BSS segment end
mov r0, #0
@2: cmp r1, r2
strcc r0, [r1], #4
bcc @2
//---- detect main memory size
bl detect_main_memory_size
//---- set interrupt vector
ldr r1, =HW_INTR_VECTOR_BUF
ldr r0, =OS_IrqHandler
str r0, [r1, #0]
#ifndef SDK_NOINIT
//---- for C++
bl _fp_init
bl TwlSpStartUp
bl __call_static_initializers
#endif
//---- start (to 16bit code)
ldr r1, =TwlSpMain
ldr lr, =HW_RESET_VECTOR
bx r1
}
/*---------------------------------------------------------------------------*
Name: do_autoload
Description: put autoload data block according to autoload information,
and clear static bss by filling with 0.
Arguments: None.
Returns: None.
*---------------------------------------------------------------------------*/
void *const _start_ModuleParams[] = {
(void *)SDK_AUTOLOAD_LIST,
(void *)SDK_AUTOLOAD_LIST_END,
(void *)SDK_AUTOLOAD_START,
(void *)SDK_STATIC_BSS_START,
(void *)SDK_STATIC_BSS_END,
};
static asm void do_autoload( void )
{
#define ptable r0
#define infop r1
#define infop_end r2
#define src r3
#define dest r4
#define dest_size r5
#define dest_end r6
#define tmp r7
ldr ptable, =_start_ModuleParams
ldr infop, [ptable, #0] // r1 = start pointer to autoload_info
ldr infop_end, [ptable, #4] // r2 = end pointer to autoload_info
ldr src, [ptable, #8] // r3 = autoload block
//---- put each blocks according to autoload information
@2:
cmp infop, infop_end // reach to end?
beq @skipout
ldr dest, [infop], #4 // dest
ldr dest_size, [infop], #4 // size
add dest_end, dest, dest_size // dest_end
#if 1
mov dest, dest_end
#else
@1:
cmp dest, dest_end
ldrmi tmp, [src], #4 // [dest++] <- [src++]
strmi tmp, [dest], #4
bmi @1
#endif
//---- fill bss with 0
ldr dest_size, [infop], #4 // size
add dest_end, dest, dest_size // bss end
mov tmp, #0
@4:
cmp dest, dest_end
strcc tmp, [dest], #4
bcc @4
beq @2
@skipout:
// r0 = autoload_params
b _start_AutoloadDoneCallback // Jump into the callback
}
/*---------------------------------------------------------------------------*
Name: _start_AutoloadDoneCallback
Description: hook for end of autoload (This is dummy target for DEBUGGER)
Arguments: argv: pointer for autoload parameters
argv[0] = SDK_AUTOLOAD_LIST
argv[1] = SDK_AUTOLOAD_LIST_END
argv[2] = SDK_AUTOLOAD_START
argv[3] = SDK_STATIC_BSS_START
argv[4] = SDK_STATIC_BSS_END
Returns: None.
*---------------------------------------------------------------------------*/
SDK_WEAK_SYMBOL asm void _start_AutoloadDoneCallback( void* argv[] )
{
bx lr
}
/*---------------------------------------------------------------------------*
Name: detect_main_memory_size
Description: detect main memory size.
result is written into (u32*)HW_MMEMCHECKER_SUB.
value is [OS_CONSOLE_SIZE_4MB|OS_CONSOLE_SIZE_8MB]
Arguments: None.
Returns: None.
*---------------------------------------------------------------------------*/
#define OSi_IMAGE_DIFFERENCE 0x400000
static asm void detect_main_memory_size( void )
{
mov r0, #OS_CONSOLE_SIZE_4MB
mov r1, #0
ldr r2, =HW_MMEMCHECKER_SUB
sub r3, r2, #OSi_IMAGE_DIFFERENCE
@1:
strh r1, [r2]
ldrh r12, [r3]
cmp r1, r12
movne r0, #OS_CONSOLE_SIZE_8MB
bne @2
add r1, r1, #1
cmp r1, #2 // check 2 loop
bne @1
@2:
strh r0, [r2]
bx lr
}
/*---------------------------------------------------------------------------*
Name: TwlSpStartUp
Description: hook for user start up
Arguments: None
Returns: None.
*---------------------------------------------------------------------------*/
SDK_WEAK_SYMBOL void TwlSpStartUp(void)
{
}

54
build/libraries/init/ARM9/Makefile Normal file
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@ -0,0 +1,54 @@
#! make -f
#----------------------------------------------------------------------------
# Project: TwlIPL - libraries - init
# File: Makefile
#
# Copyright 2007 Nintendo. All rights reserved.
#
# These coded instructions, statements, and computer programs contain
# proprietary information of Nintendo of America Inc. and/or Nintendo
# Company Ltd., and are protected by Federal copyright law. They may
# not be disclosed to third parties or copied or duplicated in any form,
# in whole or in part, without the prior written consent of Nintendo.
#
# $Date:: $
# $Rev:$
# $Author:$
#----------------------------------------------------------------------------
SUBDIRS =
#SUBMAKES = Makefile.CALLTRACE \
# Makefile.FUNCTIONCOST
#----------------------------------------------------------------------------
# build ARM & THUMB libraries
FIRM_CODEGEN_ALL ?= TRUE
SRCS = crt0.c \
TARGET_OBJ = crt0.o
#----------------------------------------------------------------------------
# DEBUG版ビルドの場合、RELEASE版でビルドして
# DEBUG版のライブラリを装います。
ifdef NITRO_DEBUG
NITRO_BUILD_TYPE = RELEASE
endif
include $(TWLFIRM_ROOT)/build/buildtools/commondefs
INSTALL_TARGETS = $(TARGETS)
INSTALL_DIR = $(FIRM_INSTALL_LIBDIR)
#----------------------------------------------------------------------------
do-build: $(TARGETS)
include $(TWLFIRM_ROOT)/build/buildtools/modulerules
#===== End of Makefile =====

647
build/libraries/init/ARM9/crt0.c Normal file
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@ -0,0 +1,647 @@
/*---------------------------------------------------------------------------*
Project: TwlIPL - libraries - init
File: crt0.c
Copyright 2007 Nintendo. All rights reserved.
These coded instructions, statements, and computer programs contain
proprietary information of Nintendo of America Inc. and/or Nintendo
Company Ltd., and are protected by Federal copyright law. They may
not be disclosed to third parties or copied or duplicated in any form,
in whole or in part, without the prior written consent of Nintendo.
$Date:: $
$Rev$
$Author$
*---------------------------------------------------------------------------*/
#include <nitro/code32.h>
#include <firm.h>
extern void TwlMain(void);
extern void OS_IrqHandler(void);
static void do_autoload(void);
static void init_cp15(void);
void _start(void);
static void INITi_CpuClear32(register u32 data, register void *destp, register u32 size);
extern void *const _start_ModuleParams[];
void _start_AutoloadDoneCallback(void *argv[]);
extern void __call_static_initializers(void);
extern void _fp_init(void);
// from LCF
extern unsigned long SDK_IRQ_STACKSIZE[];
extern void SDK_AUTOLOAD_START(void); // autoload data will start from here
extern void SDK_AUTOLOAD_LIST(void); // start pointer to autoload information
extern void SDK_AUTOLOAD_LIST_END(void); // end pointer to autoload information
extern void SDK_STATIC_BSS_START(void); // static bss start address
extern void SDK_STATIC_BSS_END(void); // static bss end address
#include <nitro/version.h>
#define SDK_VERSION_ID ((u32)SDK_VERSION_MAJOR<<24|\
(u32)SDK_VERSION_MINOR<<16|\
(u32)SDK_VERSION_RELSTEP)
#define SDK_NITROCODE_LE 0x2106c0de
#define SDK_NITROCODE_BE 0xdec00621
/*---------------------------------------------------------------------------*
Name: _start
Description: Start up
Arguments: None
Returns: None.
*---------------------------------------------------------------------------*/
#define INITi_HW_DTCM SDK_AUTOLOAD_DTCM_START
SDK_WEAK_SYMBOL asm void _start( void )
{
//---- set IME = 0
// ( use that LSB of HW_REG_BASE equal to 0 )
mov r12, #HW_REG_BASE
str r12, [r12, #REG_IME_OFFSET]
//---- initialize Main Memory
bl MIi_InitMainMemCR
//---- initialize cp15
bl init_cp15
//---- initialize stack pointer
// SVC mode
mov r0, #HW_PSR_SVC_MODE
msr cpsr_c, r0
ldr r0, =INITi_HW_DTCM
add r0, r0, #0x3fc0
mov sp, r0
// IRQ mode
mov r0, #HW_PSR_IRQ_MODE
msr cpsr_c, r0
ldr r0, =INITi_HW_DTCM
add r0, r0, #0x3fc0
sub r0, r0, #HW_SVC_STACK_SIZE
sub sp, r0, #4 // 4byte for stack check code
tst sp, #4
subeq sp, sp, #4 // for 8byte-alignment
// System mode
ldr r1, =SDK_IRQ_STACKSIZE
sub r1, r0, r1
mov r0, #HW_PSR_SYS_MODE
msr cpsr_csfx, r0
sub sp, r1, #4 // 4byte for stack check code
//---- clear memory
// DTCM (16KB)
mov r0, #0
ldr r1, =INITi_HW_DTCM
mov r2, #HW_DTCM_SIZE
bl INITi_CpuClear32
// BG/OBJ palette (1KB)
mov r0, #0
ldr r1, =HW_PLTT
mov r2, #HW_PLTT_SIZE
bl INITi_CpuClear32
// OAM (1KB)
mov r0, #0x0200
ldr r1, =HW_OAM
mov r2, #HW_OAM_SIZE
bl INITi_CpuClear32
//---- load autoload block and initialize bss
ldr r1, =_start_ModuleParams
ldr r0, [r1, #20] // r0 = bottom of compressed data
bl MIi_UncompressBackward
bl do_autoload
//---- fill static static bss with 0
ldr r0, =_start_ModuleParams
ldr r1, [r0, #12] // BSS segment start
ldr r2, [r0, #16] // BSS segment end
mov r3, r1 // for next step(flush bss)
mov r0, #0
@1: cmp r1, r2
strcc r0, [r1], #4
bcc @1
//---- flush static bss region
// (r0 == #0, r3 == _start_ModuleParams::BSS_segment_start)
bic r1, r3, #HW_CACHE_LINE_SIZE - 1
@cacheflush:
mcr p15, 0, r0, c7, c10, 4 // wait writebuffer empty
mcr p15, 0, r1, c7, c5, 1 // ICache
mcr p15, 0, r1, c7, c14, 1 // DCache
add r1, r1, #HW_CACHE_LINE_SIZE
cmp r1, r2
blt @cacheflush
// print buffer (used for ARM7's printing)
ldr r1, =HW_COMPONENT_PARAM
str r0, [r1, #0]
//---- set interrupt vector
ldr r1, =INITi_HW_DTCM
add r1, r1, #0x3fc0
add r1, r1, #HW_DTCM_SYSRV_OFS_INTR_VECTOR
ldr r0, =OS_IrqHandler
str r0, [r1, #0]
#ifndef SDK_NOINIT
//---- for C++
bl _fp_init
bl TwlStartUp
bl __call_static_initializers
#endif
//---- start (to 16bit code)
ldr r1, =TwlMain
ldr lr, =HW_RESET_VECTOR
tst sp, #4
subne sp, sp, #4 // for 8byte-alignment
bx r1
}
/*---------------------------------------------------------------------------*
Name: INITi_CpuClear32
Description: fill memory with specified data.
32bit version
Arguments: data : fill data
destp : destination address
size : size (byte)
Returns: None
*---------------------------------------------------------------------------*/
static asm void INITi_CpuClear32( register u32 data, register void *destp, register u32 size )
{
add r12, r1, r2 // r12: destEndp = destp + size
@20:
cmp r1, r12 // while (destp < destEndp)
stmltia r1!, {r0} // *((vu32 *)(destp++)) = data
blt @20
bx lr
}
/*---------------------------------------------------------------------------*
Name: _start_ModuleParams
Description: autoload/compress/arguments data block
Arguments: None.
Returns: None.
*---------------------------------------------------------------------------*/
void *const _start_ModuleParams[] = {
(void *)SDK_AUTOLOAD_LIST,
(void *)SDK_AUTOLOAD_LIST_END,
(void *)SDK_AUTOLOAD_START,
(void *)SDK_STATIC_BSS_START,
(void *)SDK_STATIC_BSS_END,
(void *)0, // CompressedStaticEnd
(void *)SDK_VERSION_ID, // SDK version info
(void *)SDK_NITROCODE_BE, // Checker 1
(void *)SDK_NITROCODE_LE, // Checker 2
};
/*---------------------------------------------------------------------------*
Name: MIi_UncompressBackward
Description: Uncompress special archive for module compression
Arguments: bottom = Bottom adrs of packed archive + 1
bottom[-8..-6] = offset for top of compressed data
inp_top = bottom - bottom[-8..-6]
bottom[-5] = offset for bottom of compressed data
inp = bottom - bottom[-5]
bottom[-4..-1] = offset for bottom of original data
outp = bottom + bottom[-4..-1]
typedef struct
{
u32 bufferTop:24;
u32 compressBottom:8;
u32 originalBottom;
} CompFooter;
Returns: None.
*---------------------------------------------------------------------------*/
asm void MIi_UncompressBackward( register void* bottom )
{
#define data r0
#define inp_top r1
#define outp r2
#define inp r3
#define outp_save r4
#define flag r5
#define count8 r6
#define index r7
#define len r12
cmp bottom, #0
beq @exit
stmfd sp!, {r4-r7}
ldmdb bottom, {r1-r2}
add outp, bottom, outp
sub inp, bottom, inp_top, LSR #24
bic inp_top, inp_top, #0xff000000
sub inp_top, bottom, inp_top
mov outp_save, outp
@loop:
cmp inp, inp_top // exit if inp==inp_top
ble @end_loop
ldrb flag, [inp, #-1]! // r4 = compress_flag = *--inp
mov count8, #8
@loop8:
subs count8, count8, #1
blt @loop
tst flag, #0x80
bne @blockcopy
@bytecopy:
ldrb data, [inp, #-1]!
#ifdef SDK_TEG
sub outp, outp, #1
swpb data, data, [outp]
#else
strb data, [outp, #-1]! // Copy 1 byte
#endif
b @joinhere
@blockcopy:
ldrb len, [inp, #-1]!
ldrb index, [inp, #-1]!
orr index, index, len, LSL #8
bic index, index, #0xf000
add index, index, #0x0002
add len, len, #0x0020
@patterncopy:
ldrb data, [outp, index]
#ifdef SDK_TEG
sub outp, outp, #1
swpb data, data, [outp]
#else
strb data, [outp, #-1]!
#endif
subs len, len, #0x0010
bge @patterncopy
@joinhere:
cmp inp, inp_top
mov flag, flag, LSL #1
bgt @loop8
@end_loop:
// DC_FlushRange & IC_InvalidateRange
mov r0, #0
bic inp, inp_top, #HW_CACHE_LINE_SIZE - 1
@cacheflush:
mcr p15, 0, r0, c7, c10, 4 // wait writebuffer empty
mcr p15, 0, inp, c7, c5, 1 // ICache
mcr p15, 0, inp, c7, c14, 1 // DCache
add inp, inp, #HW_CACHE_LINE_SIZE
cmp inp, outp_save
blt @cacheflush
ldmfd sp!, {r4-r7}
@exit bx lr
}
/*---------------------------------------------------------------------------*
Name: do_autoload
Description: put autoload data block according to autoload information,
and clear static bss by filling with 0.
Arguments: None.
Returns: None.
*---------------------------------------------------------------------------*/
static asm void do_autoload( void )
{
#define ptable r0
#define infop r1
#define infop_end r2
#define src r3
#define dest r4
#define dest_begin r5
#define dest_end r6
#define tmp r7
ldr ptable, =_start_ModuleParams
ldr infop, [ptable, #0] // r1 = start pointer to autoload_info
ldr infop_end, [ptable, #4] // r2 = end pointer to autoload_info
ldr src, [ptable, #8] // r3 = autoload block
@2:
cmp infop, infop_end // reach to end?
beq @skipout
ldr dest_begin,[infop], #4 // dest_begin
ldr tmp, [infop], #4 // size
add dest_end, dest_begin, tmp // dest_end
mov dest, dest_begin // dest working pointer
#if 1
mov dest, dest_end
#else
@1:
cmp dest, dest_end
ldrmi tmp, [src], #4 // [dest++] <- [src++]
strmi tmp, [dest], #4
bmi @1
#endif
//---- fill bss with 0
ldr tmp, [infop], #4 // size
add dest_end, dest, tmp // bss end
mov tmp, #0
@3:
cmp dest, dest_end
strcc tmp, [dest], #4
bcc @3
//---- cache work (DC_FlushRange & IC_InvalidateRange)
bic dest, dest_begin, #HW_CACHE_LINE_SIZE - 1
@cacheflush:
mcr p15, 0, dest, c7, c5, 1 // ICache
mcr p15, 0, dest, c7, c14, 1 // DCache
add dest, dest, #HW_CACHE_LINE_SIZE
cmp dest, dest_end
blt @cacheflush
b @2
// wait writebuffer empty
mcr p15, 0, tmp, c7, c10, 4
@skipout:
// r0 = _start_ModuleParams
b _start_AutoloadDoneCallback // Jump into the callback
}
/*---------------------------------------------------------------------------*
Name: _start_AutoloadDoneCallback
Description: hook for end of autoload (This is dummy target for DEBUGGER)
Arguments: argv: pointer for autoload parameters
argv[0] = SDK_AUTOLOAD_LIST
argv[1] = SDK_AUTOLOAD_LIST_END
argv[2] = SDK_AUTOLOAD_START
argv[3] = SDK_STATIC_BSS_START
argv[4] = SDK_STATIC_BSS_END
Returns: None.
*---------------------------------------------------------------------------*/
SDK_WEAK_SYMBOL asm void _start_AutoloadDoneCallback( void* argv[] )
{
bx lr
}
//-----------------------------------------------------------------------
// システム制御コプロセッサ 初期化
//-----------------------------------------------------------------------
static asm void init_cp15(void)
{
// プロテクションユニット/キャッシュ/TCM ディセーブル
mrc p15, 0, r0, c1, c0, 0
ldr r1, =HW_C1_ICACHE_ENABLE | HW_C1_DCACHE_ENABLE \
| HW_C1_ITCM_ENABLE | HW_C1_DTCM_ENABLE \
| HW_C1_ITCM_LOAD_MODE | HW_C1_DTCM_LOAD_MODE \
| HW_C1_LD_INTERWORK_DISABLE \
| HW_C1_PROTECT_UNIT_ENABLE
bic r0, r0, r1
mcr p15, 0, r0, c1, c0, 0
// キャッシュ無効化
mov r0, #0
mcr p15, 0, r0, c7, c5, 0 // 命令キャッシュ
mcr p15, 0, r0, c7, c6, 0 // データキャッシュ
// ライトバッファ エンプティ待ち
mcr p15, 0, r0, c7, c10, 4
/*
; Region G: BACK_GROUND: Base = 0x0, Size = 4GB, I:NC NB / D:NC NB, I:NA / D:NA
; Region 0: IO_VRAM: Base = 0x04000000, Size = 64MB, I:NC NB / D:NC NB, I:RW / D:RW
; Region 1Rel: MAIN_MEM+WRAM: Base = 0x02000000, Size = 32MB*, I:Cach Buf / D:Cach Buf, I:RW / D:RW
; Region 1Dbg: MAIN_MEM+WRAM: Base = 0x02000000, Size = 32MB, I:Cach Buf / D:Cach Buf, I:RW / D:RW
; (* Size will be arranged in OS_InitArena(). )
; Region 2Rel: SOUND_DATA: Base = 0x02380000, Size = 512KB, I:NC NB / D:NC NB, I:NA / D:NA
; Region 2D4M: SOUND_DATA: Base = 0x02300000, Size = 1MB, I:NC NB / D:NC NB, I:NA / D:NA
; Region 2D8M: SOUND_DATA: Base = 0x02600000, Size = 2MB, I:NC NB / D:NC NB, I:NA / D:NA
; Region 3: MAIN_MEM_HI: Base = 0x08000000, Size = 256MB, I:Cach Buf / D:Cach Buf, I:RW / D:RW
; Region 3: CARTRIDGE: Base = 0x08000000, Size = 128MB, I:NC NB / D:NC NB, I:NA / D:RW
; Region 4: DTCM: Base = SOUND_DATA, Size = 16KB, I:NC NB / D:NC NB, I:NA / D:RW
; Region 5: ITCM: Base = 0x01000000, Size = 16MB, I:NC NB / D:NC NB, I:RW / D:RW
; Region 6: BIOS: Base = 0xffff0000, Size = 32KB, I:Cach NB / D:Cach NB, I:RO / D:RO
; Region 7: SHARE_WORK: Base = 0x027ff000, Size = 4KB, I:NC NB / D:NC NB, I:NA / D:RW
;(Region 7: DBG_RESERVE: Base = 0x02700000, Size = 1MB, I:NC NB / D:NC NB, I:RW / D:RW)
*/
#define SET_PROTECTION_A( id, adr, siz ) ldr r0, =(adr|HW_C6_PR_##siz|HW_C6_PR_ENABLE)
#define SET_PROTECTION_B( id, adr, siz ) mcr p15, 0, r0, c6, id, 0
#define REGION_BIT(a,b,c,d,e,f,g,h) (((a)<<0)|((b)<<1)|((c)<<2)|((d)<<3)|((e)<<4)|((f)<<5)|((g)<<6)|((h)<<7))
#define REGION_ACC(a,b,c,d,e,f,g,h) (((a)<<0)|((b)<<4)|((c)<<8)|((d)<<12)|((e)<<16)|((f)<<20)|((g)<<24)|((h)<<28))
#define NA 0
#define RW 1
#define RO 5
//
// メモリリージョン初期化
//
//---- I/O レジスタ & VRAM 等
SET_PROTECTION_A( c0, HW_IOREG, 64MB )
SET_PROTECTION_B( c0, HW_IOREG, 64MB )
//---- メインメモリ
SET_PROTECTION_A( c1, HW_MAIN_MEM_MAIN, 32MB )
SET_PROTECTION_B( c1, HW_MAIN_MEM_MAIN, 32MB )
//---- サウンドデータ領域
#if HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x1000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 4KB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 4KB )
#elif HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x2000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 8KB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 8KB )
#elif HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x4000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 16KB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 16KB )
#elif HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x8000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 32KB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 32KB )
#elif HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x10000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 64KB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 64KB )
#elif HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x20000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 128KB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 128KB )
#elif HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x40000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 256KB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 256KB )
#elif HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x80000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 512KB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 512KB )
#elif HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x100000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 1MB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 1MB )
#elif HW_MAIN_MEM_SUB_SIZE+HW_MAIN_MEM_SHARED_SIZE == 0x200000
SET_PROTECTION_A( c2, HW_MAIN_MEM_SUB, 2MB )
SET_PROTECTION_B( c2, HW_MAIN_MEM_SUB, 2MB )
#else
#pragma message(ERROR: Size unmatch HW_MAIN_MEM_SUB_SIZE)
#endif
//---- メインメモリ上位イメージ 又は他の用途
// カートリッジ、CPU 内部ワーク RAM 等
//SET_PROTECTION_A( c3, HW_MAIN_MEM_HI, 32MB )
//SET_PROTECTION_B( c3, HW_MAIN_MEM_HI, 32MB )
SET_PROTECTION_A( c3, HW_TWL_MAIN_MEM_IMAGE, 32MB )
SET_PROTECTION_B( c3, HW_TWL_MAIN_MEM_IMAGE, 32MB )
//---- データ TCM
// + CPU 内部ワーク RAM の場合あり
//#if (HW_DTCM & 0x3FFF) != 0
//#pragma message(ERROR: HW_DTCM need to be aligned 16KB!)
//#endif
// SET_PROTECTION_A( c4, HW_DTCM, 16KB )
ldr r0, =SDK_AUTOLOAD_DTCM_START
orr r0, r0, #HW_C6_PR_16KB
orr r0, r0, #HW_C6_PR_ENABLE
SET_PROTECTION_B( c4, HW_DTCM, 16KB )
//---- 命令 TCM
// データ TCM より優先が高い、メインメモリ領域までのイメージ
SET_PROTECTION_A( c5, HW_ITCM_IMAGE, 16MB )
SET_PROTECTION_B( c5, HW_ITCM_IMAGE, 16MB )
//---- BIOS
SET_PROTECTION_A( c6, HW_BIOS, 32KB )
SET_PROTECTION_B( c6, HW_BIOS, 32KB )
//---- SHARED CPU 間通信ワーク領域
SET_PROTECTION_A( c7, HW_MAIN_MEM_SHARED, 4KB )
SET_PROTECTION_B( c7, HW_MAIN_MEM_SHARED, 4KB )
#if HW_MAIN_MEM_SHARED_SIZE != 0x1000
#pragma message(ERROR: Size unmatch HW_MAIN_MEM_SHARED_SIZE)
#endif
//
// 命令ＴＣＭ 設定
//
mov r0, #HW_C9_TCMR_32MB
mcr p15, 0, r0, c9, c1, 1
//
// データＴＣＭ 設定
//
ldr r0, =INITi_HW_DTCM
orr r0, r0, #HW_C9_TCMR_16KB
mcr p15, 0, r0, c9, c1, 0
//
// 命令キャッシュ イネーブル (リージョン設定)
// 1: MAIN_MEM + WRAM
// 3: MAIN_MEM_HI (or CTRDG)
// 6: BIOS
//
mov r0, #REGION_BIT(0,1,0,1,0,0,1,0)
mcr p15, 0, r0, c2, c0, 1
//
// データキャッシュ イネーブル (リージョン設定)
// 1: MAIN_MEM + WRAM
// 3: MAIN_MEM_HI (or CTRDG)
// 6: BIOS
//
mov r0, #REGION_BIT(0,1,0,1,0,0,1,0)
mcr p15, 0, r0, c2, c0, 0
//
// ライトバッファ イネーブル(リージョン設定)
// 1: MAIN_MEM + WRAM
// 3: MAIN_MEM_HI (or CTRDG)
//
mov r0, #REGION_BIT(0,1,0,1,0,0,0,0)
mcr p15, 0, r0, c3, c0, 0
//
// 命令アクセス許可 (リージョン設定)
// IO_VRAM : RW
// MAIN_MEM_MAIN : RW
// MAIN_MEM_SUB : NA
// MAIN_MEM_HI : RW
// DTCM : NA
// ITCM : RW
// BIOS : RO
// SHARED : NA
//
ldr r0, =REGION_ACC(RW,RW,NA,RW,NA,RW,RO,NA)
mcr p15, 0, r0, c5, c0, 3
//
// データアクセス許可（リージョン設定）
// IO_VRAM : RW
// MAIN_MEM_MAIN : RW
// MAIN_MEM_SUB : NA
// MAIN_MEM_HI : RW
// DTCM : RW
// ITCM : RW
// BIOS : RO
// SHARED : RW
//
ldr r0, =REGION_ACC(RW,RW,NA,RW,RW,RW,RO,RW)
mcr p15, 0, r0, c5, c0, 2
//
// システム制御コプロセッサ マスター設定
//
mrc p15, 0, r0, c1, c0, 0
ldr r1,=HW_C1_ICACHE_ENABLE | HW_C1_DCACHE_ENABLE | HW_C1_CACHE_ROUND_ROBIN \
| HW_C1_ITCM_ENABLE | HW_C1_DTCM_ENABLE \
| HW_C1_SB1_BITSET | HW_C1_EXCEPT_VEC_UPPER \
| HW_C1_PROTECT_UNIT_ENABLE
orr r0, r0, r1
mcr p15, 0, r0, c1, c0, 0
bx lr
}
/*---------------------------------------------------------------------------*
Name: TwlStartUp
Description: hook for user start up
Arguments: None
Returns: None.
*---------------------------------------------------------------------------*/
SDK_WEAK_SYMBOL void TwlStartUp(void)
{
}
/*---------------------------------------------------------------------------*
Name: OSi_ReferSymbol
Description: used by SDK_REFER_SYMBOL macro to avoid dead-strip.
Arguments: symbol unused
Returns: None.
*---------------------------------------------------------------------------*/
void OSi_ReferSymbol(void *symbol)
{
#pragma unused(symbol)
}

32
build/libraries/init/Makefile Normal file
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@ -0,0 +1,32 @@
#! make -f
#----------------------------------------------------------------------------
# Project: TwlIPL - libraries - init
# File: Makefile
#
# Copyright 2007 Nintendo. All rights reserved.
#
# These coded instructions, statements, and computer programs contain
# proprietary information of Nintendo of America Inc. and/or Nintendo
# Company Ltd., and are protected by Federal copyright law. They may
# not be disclosed to third parties or copied or duplicated in any form,
# in whole or in part, without the prior written consent of Nintendo.
#
# $Date:: $
# $Rev:$
# $Author:$
#----------------------------------------------------------------------------
include $(TWLFIRM_ROOT)/build/buildtools/commondefs
#----------------------------------------------------------------------------
SUBDIRS = ARM9 \
ARM7 \
#----------------------------------------------------------------------------
include $(TWLFIRM_ROOT)/build/buildtools/modulerules
#===== End of Makefile =====

58
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#! make -f
#----------------------------------------------------------------------------
# Project: TwlFirm - libraries - mi
# File: Makefile
#
# Copyright 2007 Nintendo. All rights reserved.
#
# These coded instructions, statements, and computer programs contain
# proprietary information of Nintendo of America Inc. and/or Nintendo
# Company Ltd., and are protected by Federal copyright law. They may
# not be disclosed to third parties or copied or duplicated in any form,
# in whole or in part, without the prior written consent of Nintendo.
#
# $Date:: $
# $Rev:$
# $Author:$
#----------------------------------------------------------------------------
SUBDIRS =
SUBMAKES =
#----------------------------------------------------------------------------
# build ARM & THUMB libraries
FIRM_CODEGEN_ALL ?= TRUE
SRCDIR = .
SRCS = \
mi_init_mainMemory.c \
TARGET_LIB = libmi$(FIRM_LIBSUFFIX).a
include $(TWLFIRM_ROOT)/build/buildtools/commondefs
INSTALL_TARGETS = $(TARGETS)
INSTALL_DIR = $(FIRM_INSTALL_LIBDIR)
ifdef NITRO_CALLTRACE
CCFLAGS += -DOS_PROFILE_AVAILABLE -DOS_PROFILE_CALL_TRACE
endif
ifdef NITRO_FUNCTIONCOST
CCFLAGS += -DOS_PROFILE_AVAILABLE -DOS_PROFILE_FUNCTION_COST
endif
ifdef NITRO_TCM_APPLY
CCFLAGS += -DSDK_TCM_APPLY
endif
#----------------------------------------------------------------------------
do-build: $(TARGETS)
include $(TWLFIRM_ROOT)/build/buildtools/modulerules
#===== End of Makefile =====

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/*---------------------------------------------------------------------------*
Project: TwlIPL - libraries - mi
File: mi_init_mainMemory.c
Copyright 2007 Nintendo. All rights reserved.
These coded instructions, statements, and computer programs contain
proprietary information of Nintendo of America Inc. and/or Nintendo
Company Ltd., and are protected by Federal copyright law. They may
not be disclosed to third parties or copied or duplicated in any form,
in whole or in part, without the prior written consent of Nintendo.
$Date:: $
$Rev$
$Author$
*---------------------------------------------------------------------------*/
#include <firm/mi.h>
#include <nitro/code32.h>
/*---------------------------------------------------------------------------*
Name: MIi_InitMainMemCR
Description: change mainmem into the burst mode
Arguments: None
Returns: None
*---------------------------------------------------------------------------*/
asm void MIi_InitMainMemCR( void )
{
mov r12, lr
mov r0, #0x8000 // low period 0.97ms
bl OS_SpinWait
ldr r3, =REG_EXMEMCNT_ADDR
mov r1, #REG_MI_EXMEMCNT_CE2_MASK
ldrh r2, [r3]
tst r2, r1
bxne r12
strh r1, [r3]
mov r0, #0x8000 // high period 0.97ms
bl OS_SpinWait
ldr r3, =HW_WRAM_AREA - 2
#if PLATFORM == BB
ldr r0, =MMEM_DCR0_BURST_MODE | MMEM_DCR0_BURST_CONTINUOUS \
| MMEM_DCR0_PARTIAL_REFRESH_NONE | MMEM_DCR0_SB1
ldr r1, =MMEM_DCR1_1ST_R4_W3 | MMEM_DCR1_BURST_WRITE | MMEM_DCR1_BURST_LINER \
| MMEM_DCR1_CLOCK_TRIGGER_UP | MMEM_DCR1_SB1
ldr r2, =HW_MAIN_MEM | MMEM_DCR2_CLOCK_TRIGGER_UP \
| MMEM_DCR2_BURST_MODE | MMEM_DCR2_BURST_CONTINUOUS \
| MMEM_DCR2_1ST_R4_W3 | MMEM_DCR2_BURST_WRITE | MMEM_DCR2_BURST_LINER \
| MMEM_DCR2_PARTIAL_REFRESH_NONE | MMEM_DCR2_SB1
ldrh lr, [r3]
strh lr, [r3]
strh lr, [r3]
strh r0, [r3]
strh r1, [r3]
ldrh lr, [r2]
#else // PLATFORM == TS
ldr r0, =MMEM_TCR0
ldr r1, =MMEM_TCR1
ldr r2, =MMEM_TCR2
ldrh lr, [r3]
strh lr, [r3]
strh lr, [r3]
strh r0, [r3]
strh r1, [r3]
strh r2, [r3]
#endif // PLATFORM == TS
ldr r3, =REG_EXMEMCNT_ADDR
mov r1, #REG_MI_EXMEMCNT_IFM_MASK | REG_MI_EXMEMCNT_CE2_MASK
strh r1, [r3]
bx r12
}

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#! make -f
#----------------------------------------------------------------------------
# Project: TwlIPL - libraries - mi
# File: Makefile
#
# Copyright 2007 Nintendo. All rights reserved.
#
# These coded instructions, statements, and computer programs contain
# proprietary information of Nintendo of America Inc. and/or Nintendo
# Company Ltd., and are protected by Federal copyright law. They may
# not be disclosed to third parties or copied or duplicated in any form,
# in whole or in part, without the prior written consent of Nintendo.
#
# $Date:: $
# $Rev:$
# $Author:$
#----------------------------------------------------------------------------
include $(TWLFIRM_ROOT)/build/buildtools/commondefs
#----------------------------------------------------------------------------
SUBDIRS = ARM9
#----------------------------------------------------------------------------
include $(TWLFIRM_ROOT)/build/buildtools/modulerules
#===== End of Makefile =====

2
include/firm.h
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@ -20,9 +20,9 @@
#include <twl.h>
#include <firm/os.h>
#include <firm/mi.h>
/*
#include <firm/memorymap.h>
#include <firm/mi.h>
#include <firm/nvram.h>
#include <firm/pm.h>
#include <firm/gcd.h>