ppc970 initial porting.
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2082 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Eswar Nallusamy
parent
987ca8e08c
commit
ed00937103
|
|
@ -5,6 +5,16 @@ makerule linuxbios.rom
|
|||
action "cp $< $@"
|
||||
end
|
||||
|
||||
makerule clean
|
||||
action "rm -f linuxbios.* *~"
|
||||
action "rm -f linuxbios"
|
||||
action "rm -f ldscript.ld"
|
||||
action "rm -f a.out *.s *.l *.o *.E *.inc"
|
||||
action "rm -f TAGS tags romcc*"
|
||||
action "rm -f docipl buildrom* chips.c *chip.c linuxbios_ram* linuxbios_pay*"
|
||||
action "rm -f build_opt_tbl* nrv2b* option_table.c"
|
||||
end
|
||||
|
||||
dir init
|
||||
dir lib
|
||||
dir boot
|
||||
|
|
|
|||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,279 @@
|
|||
#ifndef _ppc970lib_h_
|
||||
#define _ppc970lib_h_
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Time base structure.
|
||||
+----------------------------------------------------------------------------*/
|
||||
typedef struct tb {
|
||||
unsigned long tb_all;
|
||||
} tb_t;
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| 970FX specific ppc prototypes.
|
||||
+----------------------------------------------------------------------------*/
|
||||
void ppcMfvscr(
|
||||
void );
|
||||
|
||||
void ppcMtvscr(
|
||||
void );
|
||||
|
||||
int ppcMfvr(
|
||||
unsigned int reg_num,
|
||||
unsigned long *data_msb,
|
||||
unsigned long *data_lsb );
|
||||
|
||||
int ppcMtvr(
|
||||
unsigned int reg_num,
|
||||
unsigned long data_msb,
|
||||
unsigned long data_lsb );
|
||||
|
||||
void ppcLvxl(
|
||||
unsigned int reg_num,
|
||||
void *addr );
|
||||
|
||||
void ppcStvx(
|
||||
unsigned int reg_num,
|
||||
void *addr );
|
||||
|
||||
unsigned long ppcMflr(
|
||||
void );
|
||||
|
||||
unsigned char inbyte(
|
||||
unsigned long addr );
|
||||
|
||||
void outbyte(
|
||||
unsigned long addr,
|
||||
unsigned int data );
|
||||
|
||||
unsigned short inhalf(
|
||||
unsigned long addr );
|
||||
|
||||
void outhalf(
|
||||
unsigned long addr,
|
||||
unsigned int data );
|
||||
|
||||
unsigned short inhalf_brx(
|
||||
unsigned long addr );
|
||||
|
||||
void outhalf_brx(
|
||||
unsigned long addr,
|
||||
unsigned int data );
|
||||
|
||||
unsigned long inword(
|
||||
unsigned long addr );
|
||||
|
||||
void outword(
|
||||
unsigned long addr,
|
||||
unsigned long data );
|
||||
|
||||
unsigned int inint(
|
||||
unsigned long addr );
|
||||
|
||||
void outint(
|
||||
unsigned long addr,
|
||||
unsigned int data );
|
||||
|
||||
unsigned int inint_brx(
|
||||
unsigned long addr );
|
||||
|
||||
void outint_brx(
|
||||
unsigned long addr,
|
||||
unsigned int data );
|
||||
|
||||
void ppcDflush(
|
||||
void );
|
||||
|
||||
void ppcDcbz_area(
|
||||
unsigned long addr,
|
||||
unsigned long len );
|
||||
|
||||
unsigned long ppcTlbsync(
|
||||
void );
|
||||
|
||||
unsigned long ppcTlbie(
|
||||
unsigned long vaddr,
|
||||
int large_page );
|
||||
|
||||
void ppcTlbiel(
|
||||
unsigned long vaddr );
|
||||
|
||||
void ppcSlbie(
|
||||
unsigned long rb );
|
||||
|
||||
void ppcSlbia(
|
||||
void );
|
||||
|
||||
void ppcSlbmte(
|
||||
unsigned long rs,
|
||||
unsigned long rb );
|
||||
|
||||
unsigned long ppcSlbmfev(
|
||||
int index );
|
||||
|
||||
unsigned long ppcSlbmfee(
|
||||
int index );
|
||||
|
||||
void ppcAbend(
|
||||
void );
|
||||
|
||||
unsigned long ppcAndMsr(
|
||||
unsigned long value );
|
||||
|
||||
unsigned int ppcCntlzw(
|
||||
unsigned int value );
|
||||
|
||||
unsigned int ppcCntlzd(
|
||||
unsigned long value );
|
||||
|
||||
void ppcDcbf(
|
||||
void *addr );
|
||||
|
||||
void ppcDcbst(
|
||||
void *addr );
|
||||
|
||||
void ppcDcbz(
|
||||
void *addr );
|
||||
|
||||
void ppcHalt(
|
||||
void );
|
||||
|
||||
void ppcIcbi(
|
||||
void *addr );
|
||||
|
||||
void ppcIsync(
|
||||
void );
|
||||
|
||||
unsigned long ppcMfgpr1(
|
||||
void );
|
||||
|
||||
unsigned long ppcMfgpr2(
|
||||
void );
|
||||
|
||||
void ppcMtmsr(
|
||||
unsigned long msr_value );
|
||||
|
||||
unsigned long ppcMfmsr(
|
||||
void );
|
||||
|
||||
unsigned long ppcOrMsr(
|
||||
unsigned long value );
|
||||
|
||||
void ppcSync(
|
||||
void );
|
||||
|
||||
void ppcLwsync(
|
||||
void );
|
||||
|
||||
void ppcPtesync(
|
||||
void );
|
||||
|
||||
void ppcEieio(
|
||||
void );
|
||||
|
||||
void ppcTestandset(
|
||||
unsigned long addr,
|
||||
unsigned long value );
|
||||
|
||||
unsigned long ppcMfscom(
|
||||
unsigned int scom_num );
|
||||
|
||||
void ppcMtscom(
|
||||
unsigned int scom_num,
|
||||
unsigned long scom_data );
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| 970FX SPR's.
|
||||
+----------------------------------------------------------------------------*/
|
||||
void ppcMthid0(
|
||||
unsigned long data );
|
||||
|
||||
void ppcMthid1(
|
||||
unsigned long data );
|
||||
|
||||
void ppcMthid4(
|
||||
unsigned long data );
|
||||
|
||||
void ppcMthid5(
|
||||
unsigned long data );
|
||||
|
||||
void ppcMftb(
|
||||
tb_t *clock_data );
|
||||
|
||||
void ppcMttb(
|
||||
tb_t *clock_data );
|
||||
|
||||
void ppcMtspr_any(
|
||||
unsigned int spr_num,
|
||||
unsigned long value );
|
||||
|
||||
unsigned long ppcMfspr_any(
|
||||
unsigned int spr_num );
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Additional functions required by debug connection.
|
||||
+----------------------------------------------------------------------------*/
|
||||
int ppcCachelinesize(
|
||||
void );
|
||||
|
||||
unsigned long ppcProcid(
|
||||
void );
|
||||
|
||||
void ppcMtmmucr(
|
||||
unsigned long data );
|
||||
|
||||
void ppcMttlb1(
|
||||
unsigned long index,
|
||||
unsigned long value );
|
||||
|
||||
void ppcMttlb2(
|
||||
unsigned long index,
|
||||
unsigned long value );
|
||||
|
||||
void ppcMttlb3(
|
||||
unsigned long index,
|
||||
unsigned long value );
|
||||
|
||||
unsigned long ppcMftlb1(
|
||||
unsigned long index );
|
||||
|
||||
unsigned long ppcMftlb2(
|
||||
unsigned long index );
|
||||
|
||||
unsigned long ppcMftlb3(
|
||||
unsigned long index );
|
||||
|
||||
unsigned long ppcMfmmucr(
|
||||
void );
|
||||
|
||||
unsigned long ppcMfdcr_any(
|
||||
unsigned long dcr_num );
|
||||
|
||||
unsigned long ppcMfspr_any_name(
|
||||
char *name,
|
||||
unsigned long *value_msb );
|
||||
|
||||
void ppcMtdcr_any(
|
||||
unsigned long dcr_num,
|
||||
unsigned long value );
|
||||
|
||||
void ppcMtspr_any_name(
|
||||
char *name,
|
||||
unsigned long value_lsb,
|
||||
unsigned long value_msb );
|
||||
|
||||
int ppcIstrap(
|
||||
void );
|
||||
|
||||
unsigned long p_ptegg(
|
||||
int lp,
|
||||
unsigned long ea,
|
||||
unsigned long sdr1,
|
||||
unsigned long vsid );
|
||||
|
||||
unsigned long s_ptegg(
|
||||
int lp,
|
||||
unsigned long ea,
|
||||
unsigned long sdr1,
|
||||
unsigned long vsid );
|
||||
|
||||
#endif /* _ppc970lib_h_ */
|
||||
|
|
@ -1,94 +1,372 @@
|
|||
/*
|
||||
* Memory map:
|
||||
*
|
||||
* _ROMBASE : start of ROM
|
||||
* _RESET : reset vector (may be at top of ROM)
|
||||
* _EXCEPTIONS_VECTORS : exception table
|
||||
*
|
||||
* _ROMSTART : linuxbios text
|
||||
* : payload text
|
||||
*
|
||||
* _RAMBASE : address to copy payload
|
||||
*/
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Memory layout. RAM length is referenced again in __heap_size variable
|
||||
| definition.
|
||||
+----------------------------------------------------------------------------*/
|
||||
MEMORY
|
||||
{
|
||||
RAM_VECT (rwx) : ORIGIN = 0x00000000, LENGTH = 0x00010000
|
||||
RAM (rwx) : ORIGIN = 0x00010000, LENGTH = 0x003F0000
|
||||
ROM_INIT (r x) : ORIGIN = 0xFFF00000, LENGTH = 0x00002000
|
||||
ROM (r x) : ORIGIN = 0xFFF02000, LENGTH = 0x000FE000
|
||||
}
|
||||
|
||||
/*
|
||||
* Written by Johan Rydberg, based on work by Daniel Kahlin.
|
||||
* Rewritten by Eric Biederman
|
||||
* Re-rewritten by Greg Watson for PPC
|
||||
*/
|
||||
|
||||
/*
|
||||
* We use ELF as output format. So that we can
|
||||
* debug the code in some form.
|
||||
*/
|
||||
|
||||
OUTPUT_FORMAT("elf32-powerpc")
|
||||
ENTRY(_start)
|
||||
|
||||
TARGET(binary)
|
||||
INPUT(linuxbios_ram.rom)
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Sections originally taken from default GNU LD script.
|
||||
+----------------------------------------------------------------------------*/
|
||||
SECTIONS
|
||||
{
|
||||
/*
|
||||
* Absolute location of base of ROM
|
||||
*/
|
||||
. = _ROMBASE;
|
||||
|
||||
/*
|
||||
* Absolute location of reset vector. This may actually be at the
|
||||
* the top of ROM.
|
||||
*/
|
||||
. = _RESET;
|
||||
.reset . : {
|
||||
*(.rom.reset);
|
||||
. = ALIGN(16);
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Create dummy section. We need to do this so that the __stext symbol is
|
||||
| set correctly.
|
||||
+-------------------------------------------------------------------------*/
|
||||
.dummyt :
|
||||
{
|
||||
LONG(0x00000000)
|
||||
} > RAM
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Create variable holding the value of the start of the text.
|
||||
+-------------------------------------------------------------------------*/
|
||||
__stext = . - SIZEOF(.dummyt);
|
||||
|
||||
.hash :
|
||||
{
|
||||
*(.hash)
|
||||
} > RAM
|
||||
|
||||
.dynsym :
|
||||
{
|
||||
*(.dynsym)
|
||||
} > RAM
|
||||
|
||||
.dynstr :
|
||||
{
|
||||
*(.dynstr)
|
||||
} > RAM
|
||||
|
||||
.rel.init :
|
||||
{
|
||||
*(.rel.init)
|
||||
} > RAM
|
||||
|
||||
.rela.init :
|
||||
{
|
||||
*(.rela.init)
|
||||
} > RAM
|
||||
|
||||
.rel.text :
|
||||
{
|
||||
*(.rel.text)
|
||||
*(.rel.text.*)
|
||||
*(.rel.gnu.linkonce.t.*)
|
||||
} > RAM
|
||||
|
||||
.rela.text :
|
||||
{
|
||||
*(.rela.text)
|
||||
*(.rela.text.*)
|
||||
*(.rela.gnu.linkonce.t.*)
|
||||
} > RAM
|
||||
|
||||
.rel.rodata :
|
||||
{
|
||||
*(.rel.rodata)
|
||||
*(.rel.rodata.*)
|
||||
*(.rel.gnu.linkonce.r.*)
|
||||
} > RAM
|
||||
|
||||
.rela.rodata :
|
||||
{
|
||||
*(.rela.rodata)
|
||||
*(.rela.rodata.*)
|
||||
*(.rela.gnu.linkonce.r.*)
|
||||
} > RAM
|
||||
|
||||
.rel.data :
|
||||
{
|
||||
*(.rel.data)
|
||||
*(.rel.data.*)
|
||||
*(.rel.gnu.linkonce.d.*)
|
||||
} > RAM
|
||||
|
||||
.rela.data :
|
||||
{
|
||||
*(.rela.data)
|
||||
*(.rela.data.*)
|
||||
*(.rela.gnu.linkonce.d.*)
|
||||
} > RAM
|
||||
|
||||
.rel.sdata :
|
||||
{
|
||||
*(.rel.sdata)
|
||||
*(.rel.sdata.*)
|
||||
*(.rel.gnu.linkonce.s.*)
|
||||
} > RAM
|
||||
|
||||
.rela.sdata :
|
||||
{
|
||||
*(.rela.sdata)
|
||||
*(.rela.sdata.*)
|
||||
*(.rela.gnu.linkonce.s.*)
|
||||
} > RAM
|
||||
|
||||
.rel.sbss :
|
||||
{
|
||||
*(.rel.sbss)
|
||||
*(.rel.sbss.*)
|
||||
*(.rel.gnu.linkonce.sb.*)
|
||||
} > RAM
|
||||
|
||||
.rela.sbss :
|
||||
{
|
||||
*(.rela.sbss)
|
||||
*(.rela.sbss.*)
|
||||
*(.rel.gnu.linkonce.sb.*)
|
||||
} > RAM
|
||||
|
||||
.rel.sdata2 :
|
||||
{
|
||||
*(.rel.sdata2)
|
||||
*(.rel.sdata2.*)
|
||||
*(.rel.gnu.linkonce.s2.*)
|
||||
} > RAM
|
||||
|
||||
.rela.sdata2 :
|
||||
{
|
||||
*(.rela.sdata2)
|
||||
*(.rela.sdata2.*)
|
||||
*(.rela.gnu.linkonce.s2.*)
|
||||
} > RAM
|
||||
|
||||
.rel.sbss2 :
|
||||
{
|
||||
*(.rel.sbss2)
|
||||
*(.rel.sbss2.*)
|
||||
*(.rel.gnu.linkonce.sb2.*)
|
||||
} > RAM
|
||||
|
||||
.rela.sbss2 :
|
||||
{
|
||||
*(.rela.sbss2)
|
||||
*(.rela.sbss2.*)
|
||||
*(.rela.gnu.linkonce.sb2.*)
|
||||
} > RAM
|
||||
|
||||
.rel.bss :
|
||||
{
|
||||
*(.rel.bss)
|
||||
*(.rel.bss.*)
|
||||
*(.rel.gnu.linkonce.b.*)
|
||||
} > RAM
|
||||
|
||||
.rela.bss :
|
||||
{
|
||||
*(.rela.bss)
|
||||
*(.rela.bss.*)
|
||||
*(.rela.gnu.linkonce.b.*)
|
||||
} > RAM
|
||||
|
||||
.rel.plt :
|
||||
{
|
||||
*(.rel.plt)
|
||||
} > RAM
|
||||
|
||||
.rela.plt :
|
||||
{
|
||||
*(.rela.plt)
|
||||
} > RAM
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Keep the .init sections even if they are not referenced. Fill in the
|
||||
| space (if any) in the .init serctions with 0.
|
||||
+-------------------------------------------------------------------------*/
|
||||
.text :
|
||||
{
|
||||
*(.text)
|
||||
*(.text.*)
|
||||
*(.stub)
|
||||
*(.gnu.warning)
|
||||
*(.gnu.linkonce.t.*)
|
||||
} > RAM = 0
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Create variable holding the value of the end of the text.
|
||||
+-------------------------------------------------------------------------*/
|
||||
__etext = .;
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Create variable holding the value of the start of the data.
|
||||
+-------------------------------------------------------------------------*/
|
||||
__sdata = .;
|
||||
|
||||
.rodata :
|
||||
{
|
||||
*(.rodata)
|
||||
*(.rodata.*)
|
||||
*(.gnu.linkonce.r.*)
|
||||
} > RAM
|
||||
|
||||
.rodata1 :
|
||||
{
|
||||
*(.rodata1)
|
||||
} > RAM
|
||||
|
||||
.sdata2 :
|
||||
{
|
||||
*(.sdata2)
|
||||
*(.sdata2.*)
|
||||
*(.gnu.linkonce.s2.*)
|
||||
} > RAM
|
||||
|
||||
.sbss2 :
|
||||
{
|
||||
*(.sbss2)
|
||||
*(.sbss2.*)
|
||||
*(.gnu.linkonce.sb2.*)
|
||||
} > RAM
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Align data to word boundary.
|
||||
+-------------------------------------------------------------------------*/
|
||||
. = ALIGN(4);
|
||||
|
||||
.data :
|
||||
{
|
||||
*(.data)
|
||||
*(.data.*)
|
||||
*(.gnu.linkonce.d.*)
|
||||
} > RAM
|
||||
|
||||
.toc :
|
||||
{
|
||||
*(.toc)
|
||||
*(.toc.*)
|
||||
} > RAM
|
||||
|
||||
.opd :
|
||||
{
|
||||
*(.opd)
|
||||
*(.opd.*)
|
||||
} > RAM
|
||||
|
||||
.data1 :
|
||||
{
|
||||
*(.data1)
|
||||
} > RAM
|
||||
|
||||
.eh_frame :
|
||||
{
|
||||
KEEP(*(.eh_frame))
|
||||
} > RAM
|
||||
|
||||
.fixup :
|
||||
{
|
||||
*(.fixup)
|
||||
} > RAM
|
||||
|
||||
.dynamic :
|
||||
{
|
||||
*(.dynamic)
|
||||
} > RAM
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| We want the small data sections together, so single-instruction offsets
|
||||
| can access them all, and initialized data all before uninitialized, so
|
||||
| we can shorten the on-disk segment size.
|
||||
+-------------------------------------------------------------------------*/
|
||||
.sdata :
|
||||
{
|
||||
*(.sdata)
|
||||
*(.sdata.*)
|
||||
*(.gnu.linkonce.s.*)
|
||||
} > RAM
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Create variable holding the value of the end of the data.
|
||||
+-------------------------------------------------------------------------*/
|
||||
__edata = .;
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Create variable holding the value of the start of the bss.
|
||||
+-------------------------------------------------------------------------*/
|
||||
__sbss = .;
|
||||
|
||||
.sbss :
|
||||
{
|
||||
*(.dynsbss)
|
||||
*(.sbss)
|
||||
*(.sbss.*)
|
||||
*(.gnu.linkonce.sb.*)
|
||||
*(.scommon)
|
||||
} > RAM
|
||||
|
||||
.plt :
|
||||
{
|
||||
*(.plt)
|
||||
} > RAM
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Common symbols are placed in the BSS section.
|
||||
+-------------------------------------------------------------------------*/
|
||||
.bss :
|
||||
{
|
||||
*(.dynbss)
|
||||
*(.bss)
|
||||
*(.bss.*)
|
||||
*(.gnu.linkonce.b.*)
|
||||
*(COMMON)
|
||||
} > RAM
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Align so that the bss size and __ebss are word aligned.
|
||||
+-------------------------------------------------------------------------*/
|
||||
. = ALIGN(4);
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Create variable holding the value of the end of the bss.
|
||||
+-------------------------------------------------------------------------*/
|
||||
__ebss = .;
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Create variables describing the heap. The value "0x3F0000" must be
|
||||
| equal to RAM length.
|
||||
+-------------------------------------------------------------------------*/
|
||||
__heap_start = .;
|
||||
__heap_size = 0x3F0000 + ADDR(.dummyt) - .;
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Stabs. Symbols in the following sections are relative to the beginning
|
||||
| of the section so we begin them at 0.
|
||||
+-------------------------------------------------------------------------*/
|
||||
.stab 0 :
|
||||
{
|
||||
*(.stab)
|
||||
}
|
||||
|
||||
/*
|
||||
* Absolute location of exception vector table.
|
||||
*/
|
||||
. = _EXCEPTION_VECTORS;
|
||||
.exception_vectors . : {
|
||||
*(.rom.exception_vectors);
|
||||
. = ALIGN(16);
|
||||
.stabstr 0 :
|
||||
{
|
||||
*(.stabstr)
|
||||
}
|
||||
|
||||
/*
|
||||
* Absolute location of LinuxBIOS initialization code in ROM.
|
||||
*/
|
||||
. = _ROMSTART;
|
||||
.rom . : {
|
||||
_rom = .;
|
||||
*(.rom.text);
|
||||
*(.text);
|
||||
*(.rom.data);
|
||||
*(.rodata);
|
||||
*(EXCLUDE_FILE(linuxbios_ram.rom) .data);
|
||||
. = ALIGN(16);
|
||||
_erom = .;
|
||||
}
|
||||
_lrom = LOADADDR(.rom);
|
||||
_elrom = LOADADDR(.rom) + SIZEOF(.rom);
|
||||
|
||||
/*
|
||||
* Ram is the LinuxBIOS code that runs from RAM.
|
||||
*/
|
||||
.ram . : {
|
||||
_ram = . ;
|
||||
linuxbios_ram.rom(*)
|
||||
_eram = . ;
|
||||
.stab.excl 0 :
|
||||
{
|
||||
*(.stab.excl)
|
||||
}
|
||||
|
||||
/*
|
||||
* Absolute location of where LinuxBIOS will be relocated in RAM.
|
||||
*/
|
||||
_iseg = _RAMBASE;
|
||||
_eiseg = _iseg + SIZEOF(.ram);
|
||||
_liseg = _ram;
|
||||
_eliseg = _eram;
|
||||
.stab.exclstr 0 :
|
||||
{
|
||||
*(.stab.exclstr)
|
||||
}
|
||||
|
||||
/DISCARD/ : {
|
||||
*(.comment)
|
||||
*(.note)
|
||||
.stab.index 0 :
|
||||
{
|
||||
*(.stab.index)
|
||||
}
|
||||
|
||||
.stab.indexstr 0 :
|
||||
{
|
||||
*(.stab.indexstr)
|
||||
}
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -6,11 +6,13 @@
|
|||
#include <board.h>
|
||||
#include <sdram.h>
|
||||
|
||||
#ifndef __PPC64__
|
||||
extern unsigned _iseg[];
|
||||
extern unsigned _liseg[];
|
||||
extern unsigned _eliseg[];
|
||||
|
||||
void (*payload)(void) = (void (*)(void))_iseg;
|
||||
#endif
|
||||
|
||||
/*
|
||||
* At this point we're running out of flash with our
|
||||
|
|
@ -21,7 +23,9 @@ void (*payload)(void) = (void (*)(void))_iseg;
|
|||
* - start hardwaremain() which does remainder of setup
|
||||
*/
|
||||
|
||||
#ifndef __PPC64__
|
||||
extern void flush_dcache(void);
|
||||
#endif
|
||||
|
||||
void ppc_main(void)
|
||||
{
|
||||
|
|
@ -43,6 +47,7 @@ void ppc_main(void)
|
|||
*/
|
||||
board_init2();
|
||||
|
||||
#ifndef __PPC64__
|
||||
/*
|
||||
* Flush cache now that memory is enabled.
|
||||
*/
|
||||
|
|
@ -59,6 +64,7 @@ void ppc_main(void)
|
|||
}
|
||||
|
||||
payload();
|
||||
#endif
|
||||
|
||||
/* NOT REACHED */
|
||||
}
|
||||
|
|
|
|||
|
|
@ -7,6 +7,7 @@
|
|||
* configuring the machine.
|
||||
*/
|
||||
|
||||
#ifndef __PPC64__
|
||||
#define ASM
|
||||
#include "ppcreg.h"
|
||||
#include <ppc_asm.tmpl>
|
||||
|
|
@ -109,3 +110,5 @@ __DTOR_LIST__:
|
|||
.globl __DTOR_END__
|
||||
__DTOR_END__:
|
||||
blr
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -15,8 +15,13 @@
|
|||
*/
|
||||
#include <ppc_asm.tmpl>
|
||||
|
||||
#ifndef __PPC64__
|
||||
.globl __div64_32
|
||||
__div64_32:
|
||||
#else
|
||||
.globl .__div64_32
|
||||
.__div64_32:
|
||||
#endif
|
||||
lwz r5,0(r3) # get the dividend into r5/r6
|
||||
lwz r6,4(r3)
|
||||
cmplw r5,r4
|
||||
|
|
|
|||
|
|
@ -28,8 +28,13 @@
|
|||
/*
|
||||
* unsigned long long _get_ticks(void);
|
||||
*/
|
||||
#ifndef __PPC64__
|
||||
.globl _get_ticks
|
||||
_get_ticks:
|
||||
#else
|
||||
.globl ._get_ticks
|
||||
._get_ticks:
|
||||
#endif
|
||||
1: mftbu r3
|
||||
mftb r4
|
||||
mftbu r5
|
||||
|
|
@ -40,17 +45,30 @@ _get_ticks:
|
|||
/*
|
||||
* Delay for a number of ticks
|
||||
*/
|
||||
#ifndef __PPC64__
|
||||
.globl _wait_ticks
|
||||
_wait_ticks:
|
||||
#else
|
||||
.globl ._wait_ticks
|
||||
._wait_ticks:
|
||||
#endif
|
||||
mflr r8 /* save link register */
|
||||
mr r7, r3 /* save tick count */
|
||||
#ifndef __PPC64__
|
||||
bl _get_ticks /* Get start time */
|
||||
#else
|
||||
bl ._get_ticks /* Get start time */
|
||||
#endif
|
||||
|
||||
/* Calculate end time */
|
||||
addc r7, r4, r7 /* Compute end time lower */
|
||||
addze r6, r3 /* and end time upper */
|
||||
|
||||
#ifndef __PPC64__
|
||||
1: bl _get_ticks /* Get current time */
|
||||
#else
|
||||
1: bl ._get_ticks /* Get current time */
|
||||
#endif
|
||||
subfc r4, r4, r7 /* Subtract current time from end time */
|
||||
subfe. r3, r3, r6
|
||||
bge 1b /* Loop until time expired */
|
||||
|
|
|
|||
|
|
@ -11,5 +11,12 @@ uses USE_DCACHE_RAM
|
|||
##
|
||||
default USE_DCACHE_RAM=0
|
||||
|
||||
initinclude "FAMILY_INIT" cpu/ppc/ppc970/ppc970.inc
|
||||
initinclude "EXCEPTION_VECTOR_TABLE" cpu/ppc/ppc970/ppc970excp.S
|
||||
initinclude "PROCESSOR_INIT" cpu/ppc/ppc970/ppc970.inc
|
||||
|
||||
object clock.o
|
||||
initobject clock.o
|
||||
initobject ppc970lib.S
|
||||
|
||||
dir /cpu/simple_init
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,27 @@
|
|||
#include <ppc.h>
|
||||
|
||||
static int PLL_multiplier[] = {
|
||||
25, /* 0000 - 2.5x */
|
||||
75, /* 0001 - 7.5x */
|
||||
70, /* 0010 - 7x */
|
||||
10, /* 0011 - bypass */
|
||||
20, /* 0100 - 2x */
|
||||
65, /* 0101 - 6.5x */
|
||||
100, /* 0110 - 10x */
|
||||
45, /* 0111 - 4.5x */
|
||||
30, /* 1000 - 3x */
|
||||
55, /* 1001 - 5.5x */
|
||||
40, /* 1010 - 4x */
|
||||
50, /* 1011 - 5x */
|
||||
80, /* 1100 - 8x */
|
||||
60, /* 1101 - 6x */
|
||||
35, /* 1110 - 3.5x */
|
||||
0, /* 1111 - off */
|
||||
};
|
||||
|
||||
unsigned long
|
||||
get_timer_freq(void)
|
||||
{
|
||||
unsigned long clock = CONFIG_SYS_CLK_FREQ * 1000000;
|
||||
return clock * PLL_multiplier[ppc_gethid1() >> 28] / 10;
|
||||
}
|
||||
|
|
@ -1,36 +1,7 @@
|
|||
/*bsp_970fx/bootlib/init_core.s, pibs_970, pibs_970_1.0 1/14/05 14:58:41*/
|
||||
/*----------------------------------------------------------------------------+
|
||||
| COPYRIGHT I B M CORPORATION 2002, 2004
|
||||
| LICENSED MATERIAL - PROGRAM PROPERTY OF I B M
|
||||
| US Government Users Restricted Rights - Use, duplication or
|
||||
| disclosure restricted by GSA ADP Schedule Contract with
|
||||
| IBM Corp.
|
||||
+----------------------------------------------------------------------------*/
|
||||
/*----------------------------------------------------------------------------+
|
||||
| PPC970FX BSP for EPOS
|
||||
| Author: Maciej P. Tyrlik
|
||||
| Component: Boot library.
|
||||
| File: init_core.s
|
||||
| Purpose: Basic PPC405 core initialization.
|
||||
| Changes:
|
||||
| Date: Comment:
|
||||
| ----- --------
|
||||
| 29-Jan-02 Created MPT
|
||||
| 30-Jan-02 Completed MPT
|
||||
| 19-Apr-02 Changed some instructions to macros so that new GCC AS worksMPT
|
||||
| 23-Apr-02 Removed critical interrupt enabling after rfi MPT
|
||||
| 31-Jul-02 Fixed data cache invalidate code MPT
|
||||
| 01-Feb-03 Ported to Argan 7XXFX CRB
|
||||
| 07-Aug-03 Ported to PPC7XXGX CRB
|
||||
| 12-Sep-03 Removed PVR definitions, now in board include file MCG
|
||||
| 16-Sep-03 Do not enable HID0[MUM] or L2CR[L2CE] if 7XXGX DD1.0 MCG
|
||||
| 31-Oct-03 Enable cache for MV64460 integrated SRAM MCG
|
||||
| 07-Jan-04 Initialize FPRs to avoid errata. MCG
|
||||
| 10-Feb-04 Port to PPC970FX MPT
|
||||
+----------------------------------------------------------------------------*/
|
||||
|
||||
#include <ppc970.h>
|
||||
|
||||
/******** init_core.s ***************/
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Local defines.
|
||||
+----------------------------------------------------------------------------*/
|
||||
|
|
@ -42,6 +13,7 @@
|
|||
| Init_core. Assumption: hypervisor on, 64-bit on, HID1[10]=0, HID4[23]=0.
|
||||
| Data cahability must be turned on. Instruction cahability must be off.
|
||||
+----------------------------------------------------------------------------*/
|
||||
function_prolog(init_core)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Set time base to 0.
|
||||
+--------------------------------------------------------------------*/
|
||||
|
|
@ -94,22 +66,22 @@
|
|||
LOAD_64BIT_VAL(r6,INITIAL_SLB_VSID_VAL)
|
||||
LOAD_64BIT_VAL(r7,INITIAL_SLB_ESID_VAL)
|
||||
addis r8,r0,0x1000
|
||||
0: slbmte r6,r7
|
||||
..slbl: slbmte r6,r7
|
||||
addi r6,r6,0x1000
|
||||
add r7,r7,r8
|
||||
addi r7,r7,0x0001
|
||||
bdnz 0b
|
||||
bdnz ..slbl
|
||||
mtctr r5
|
||||
LOAD_64BIT_VAL(r6,INITIAL_SLB_INVA_VAL)
|
||||
1: slbie r6
|
||||
..slbi: slbie r6
|
||||
add r6,r6,r8
|
||||
bdnz 1b
|
||||
bdnz ..slbi
|
||||
/*--------------------------------------------------------------------+
|
||||
| Load SLB. Following is the initial memory map.
|
||||
| Entry(6) ESID(36) VSID
|
||||
| 0x0 0x000000000 0x0000000000000 (large page cachable)
|
||||
| 0x1 0x00000000F 0x000000000000F (small non-cachable, G)
|
||||
| at 0x00000000 there will be 48MB mapped (SDRAM)
|
||||
| at 0x00000000 there will be 32MB mapped (SDRAM)
|
||||
| at 0xF8000000 there will be 16MB mapped (NB)
|
||||
| at 0xF4000000 there will be 64KB mapped (I/O space)
|
||||
| at 0xFF000000 there will be 16MB or 1MB mapped (FLASH)
|
||||
|
|
@ -126,11 +98,11 @@
|
|||
| Invalidate all 1024 instruction and data TLBs (4 way)
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r8,r0,0x0100
|
||||
mtspr CTR,r8
|
||||
mtspr ctr,r8
|
||||
addi r8,r0,0x0000
|
||||
2: TLBIEL(r8)
|
||||
..ivt: TLBIEL(r8)
|
||||
addi r8,r8,0x1000
|
||||
bdnz 2b
|
||||
bdnz ..ivt
|
||||
ptesync
|
||||
/*--------------------------------------------------------------------+
|
||||
| Dcbz the page table space. Calculate SDR1 address. Store SDR1
|
||||
|
|
@ -138,13 +110,13 @@
|
|||
+--------------------------------------------------------------------*/
|
||||
mfspr r3,SPR_PIR
|
||||
cmpi cr0,1,r3,0x0000
|
||||
bne 3f
|
||||
bne ..cpu1_init_core
|
||||
addis r3,r0,INITIAL_PAGE_TABLE_ADDR_CPU0@h
|
||||
ori r3,r3,INITIAL_PAGE_TABLE_ADDR_CPU0@l
|
||||
b 4f
|
||||
3: addis r3,r0,INITIAL_PAGE_TABLE_ADDR_CPU1@h
|
||||
b ..skcpu
|
||||
..cpu1_init_core: addis r3,r0,INITIAL_PAGE_TABLE_ADDR_CPU1@h
|
||||
ori r3,r3,INITIAL_PAGE_TABLE_ADDR_CPU1@l
|
||||
4: addis r4,r0,INITIAL_PAGE_TABLE_SIZE@h
|
||||
..skcpu:addis r4,r0,INITIAL_PAGE_TABLE_SIZE@h
|
||||
ori r4,r4,INITIAL_PAGE_TABLE_SIZE@l
|
||||
rlwinm r5,r4,14,14,31
|
||||
cntlzw r5,r5
|
||||
|
|
@ -158,7 +130,7 @@
|
|||
rldicl r29,r29,32,31
|
||||
addi r29,r29,-1
|
||||
/*--------------------------------------------------------------------+
|
||||
| Setup 48MB of addresses in DRAM in page table (3 large PTE). The
|
||||
| Setup 32MB of addresses in DRAM in page table (2 large PTE). The
|
||||
| parameters to p_ptegg are: r3 = lp, r4 = ea, r5 = sdr1, r6 = vsid.
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r3,r0,0x0001
|
||||
|
|
@ -171,7 +143,7 @@
|
|||
addi r4,r0,0x0180
|
||||
stw r4,0x000C(r3)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Second 16MB is mapped here.
|
||||
| Second 32MB is mapped here.
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r3,r0,0x0001
|
||||
addis r4,r0,0x0100
|
||||
|
|
@ -184,45 +156,32 @@
|
|||
ori r4,r4,0x0180
|
||||
stw r4,0x000C(r3)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Third 16MB is mapped here.
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r3,r0,0x0001
|
||||
addis r4,r0,0x0200
|
||||
ori r5,r30,0x0000
|
||||
addi r6,r0,0x0000
|
||||
bl .p_ptegg
|
||||
addi r4,r0,0x0201
|
||||
stw r4,0x0004(r3)
|
||||
addis r4,r0,0x0200
|
||||
ori r4,r4,0x0180
|
||||
stw r4,0x000C(r3)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Setup 64KB of addresses in I/O space (0xF4000000).
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r3,r0,0x0010
|
||||
mtctr r3
|
||||
addis r31,r0,0xF400
|
||||
and r31,r31,r29
|
||||
5: addi r3,r0,0x0000
|
||||
..aF4: addi r3,r0,0x0000
|
||||
ori r4,r31,0x0000
|
||||
ori r5,r30,0x0000
|
||||
addi r6,r0,0x000F
|
||||
bl .p_ptegg
|
||||
addi r6,r3,0x0080
|
||||
6: lwz r4,0x0004(r3)
|
||||
..aF4a: lwz r4,0x0004(r3)
|
||||
cmpli cr0,1,r4,0x0000
|
||||
beq 8f
|
||||
beq ..aF4s
|
||||
addi r3,r3,0x0010
|
||||
cmp cr0,1,r3,r6
|
||||
blt 6b
|
||||
7: b 7b
|
||||
8: rlwinm r4,r31,16,4,24
|
||||
blt ..aF4a
|
||||
..aF4h: b ..aF4h
|
||||
..aF4s: rlwinm r4,r31,16,4,24
|
||||
ori r4,r4,0x0001
|
||||
stw r4,0x0004(r3)
|
||||
ori r4,r31,0x01AC
|
||||
stw r4,0x000C(r3)
|
||||
addi r31,r31,0x1000
|
||||
bdnz 5b
|
||||
bdnz ..aF4
|
||||
/*--------------------------------------------------------------------+
|
||||
| Setup 16MB of addresses in NB register space (0xF8000000).
|
||||
+--------------------------------------------------------------------*/
|
||||
|
|
@ -230,61 +189,61 @@
|
|||
mtctr r3
|
||||
addis r31,r0,0xF800
|
||||
and r31,r31,r29
|
||||
9: addi r3,r0,0x0000
|
||||
..aF8: addi r3,r0,0x0000
|
||||
ori r4,r31,0x0000
|
||||
ori r5,r30,0x0000
|
||||
addi r6,r0,0x000F
|
||||
bl .p_ptegg
|
||||
addi r6,r3,0x0080
|
||||
10: lwz r4,0x0004(r3)
|
||||
..aF8a: lwz r4,0x0004(r3)
|
||||
cmpli cr0,1,r4,0x0000
|
||||
beq 12f
|
||||
beq ..aF8s
|
||||
addi r3,r3,0x0010
|
||||
cmp cr0,1,r3,r6
|
||||
blt 10b
|
||||
11: b 11b
|
||||
12: rlwinm r4,r31,16,4,24
|
||||
blt ..aF8a
|
||||
..aF8h: b ..aF8h
|
||||
..aF8s: rlwinm r4,r31,16,4,24
|
||||
ori r4,r4,0x0001
|
||||
stw r4,0x0004(r3)
|
||||
ori r4,r31,0x01AC
|
||||
stw r4,0x000C(r3)
|
||||
addi r31,r31,0x1000
|
||||
bdnz 9b
|
||||
bdnz ..aF8
|
||||
/*--------------------------------------------------------------------+
|
||||
| Setup 16MB or 1MB of addresses in ROM (at 0xFF000000 or 0xFFF00000).
|
||||
+--------------------------------------------------------------------*/
|
||||
mfspr r3,SPR_HIOR
|
||||
LOAD_64BIT_VAL(r4,BOOT_BASE_AS)
|
||||
cmpd cr0,r3,r4
|
||||
beq 13f
|
||||
beq ..big
|
||||
addi r3,r0,0x0100
|
||||
mtctr r3
|
||||
addis r31,r0,0xFFF0
|
||||
b 14f
|
||||
13: addi r3,r0,0x1000
|
||||
b ..done
|
||||
..big: addi r3,r0,0x1000
|
||||
mtctr r3
|
||||
addis r31,r0,0xFF00
|
||||
14: and r31,r31,r29
|
||||
15: addi r3,r0,0x0000
|
||||
..done: and r31,r31,r29
|
||||
..aFF: addi r3,r0,0x0000
|
||||
ori r4,r31,0x0000
|
||||
ori r5,r30,0x0000
|
||||
addi r6,r0,0x000F
|
||||
bl .p_ptegg
|
||||
addi r6,r3,0x0080
|
||||
16: lwz r4,0x0004(r3)
|
||||
..aFFa: lwz r4,0x0004(r3)
|
||||
cmpli cr0,1,r4,0x0000
|
||||
beq 18f
|
||||
beq ..aFFs
|
||||
addi r3,r3,0x0010
|
||||
cmp cr0,1,r3,r6
|
||||
blt 16b
|
||||
17: b 17b
|
||||
18: rlwinm r4,r31,16,4,24
|
||||
blt ..aFFa
|
||||
..aFFh: b ..aFFh
|
||||
..aFFs: rlwinm r4,r31,16,4,24
|
||||
ori r4,r4,0x0001
|
||||
stw r4,0x0004(r3)
|
||||
ori r4,r31,0x01A3
|
||||
stw r4,0x000C(r3)
|
||||
addi r31,r31,0x1000
|
||||
bdnz 15b
|
||||
bdnz ..aFF
|
||||
/*--------------------------------------------------------------------+
|
||||
| Synchronize after setting up page table.
|
||||
+--------------------------------------------------------------------*/
|
||||
|
|
@ -321,16 +280,16 @@
|
|||
LOAD_64BIT_VAL(r7,FLASH_BASE_INTEL_AS)
|
||||
mfspr r5,SPR_HIOR
|
||||
cmpdi cr0,r5,0x0000
|
||||
beq 19f
|
||||
beq ..hior0
|
||||
cmpd cr0,r5,r7
|
||||
beq 20f
|
||||
beq ..hiorl
|
||||
addi r8,r0,0x0000
|
||||
b 21f
|
||||
20: ori r8,r6,0x0000
|
||||
b 21f
|
||||
19: mfspr r5,SPR_HID0
|
||||
b ..hiors
|
||||
..hiorl:ori r8,r6,0x0000
|
||||
b ..hiors
|
||||
..hior0:mfspr r5,SPR_HID0
|
||||
and r8,r5,r6
|
||||
21: LOAD_64BIT_VAL(r4,HID0_PREFEAR)
|
||||
..hiors:LOAD_64BIT_VAL(r4,HID0_PREFEAR)
|
||||
andc r4,r4,r6
|
||||
or r4,r4,r8
|
||||
sync
|
||||
|
|
@ -363,3 +322,234 @@
|
|||
eieio
|
||||
mtspr SPR_SRR0,r0
|
||||
rfid
|
||||
function_epilog(init_core)
|
||||
|
||||
|
||||
/******** init_chip.s ***************/
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Local defines.
|
||||
+----------------------------------------------------------------------------*/
|
||||
#define CPU1_DELAY 0x00010000
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Init_chip.
|
||||
+----------------------------------------------------------------------------*/
|
||||
function_prolog(init_chip)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Skip if CPU1.
|
||||
+--------------------------------------------------------------------*/
|
||||
mfspr r3,SPR_PIR
|
||||
cmpi cr0,1,r3,0x0000
|
||||
bne ..cpu1
|
||||
/*--------------------------------------------------------------------+
|
||||
| Initialize the stack in the data cache for the "C" code that gets
|
||||
| called.
|
||||
+--------------------------------------------------------------------*/
|
||||
addis r3,r0,BOOT_STACK_ADDR@h
|
||||
ori r3,r3,BOOT_STACK_ADDR@l
|
||||
addis r4,r0,BOOT_STACK_SIZE@h
|
||||
ori r4,r4,BOOT_STACK_SIZE@l
|
||||
add r1,r3,r4
|
||||
bl .ppcDcbz_area
|
||||
addi r1,r1,-stack_frame_min
|
||||
addi r5,r0,0x0000
|
||||
std r5,stack_frame_bc(r1)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Load TOC. Can't use ld since the TOC value might not be aligned on
|
||||
| double word boundary.
|
||||
+--------------------------------------------------------------------*/
|
||||
bl ..ot_init_chip
|
||||
.quad .TOC.@tocbase
|
||||
..ot_init_chip: mflr r3
|
||||
lwz r2,0x0000(r3)
|
||||
lwz r3,0x0004(r3)
|
||||
rldicr r2,r2,32,31
|
||||
or r2,r2,r3
|
||||
mfspr r3,SPR_HIOR
|
||||
or r2,r2,r3
|
||||
/*--------------------------------------------------------------------+
|
||||
| Code for chip initialization code goes here. Subtractive decoding
|
||||
| allows access to specified registers.
|
||||
+--------------------------------------------------------------------*/
|
||||
bl .super_io_setup
|
||||
/*--------------------------------------------------------------------+
|
||||
| Setup default serial port using default baud rate.
|
||||
+--------------------------------------------------------------------*/
|
||||
// bl .sinit_default_no_global
|
||||
/*--------------------------------------------------------------------+
|
||||
| Enable SDRAM only if running from FLASH.
|
||||
+--------------------------------------------------------------------*/
|
||||
mflr r3
|
||||
LOAD_64BIT_VAL(r4,BOOT_BASE_AS)
|
||||
cmpld cr0,r3,r4
|
||||
blt ..skip
|
||||
bl memory_init
|
||||
/*--------------------------------------------------------------------+
|
||||
| Check the memory where PIBS data section will be placed.
|
||||
+--------------------------------------------------------------------*/
|
||||
..skip: bl ..skip_data
|
||||
.string "\nMemory check failed at 0x%x, expected 0x%x, actual 0x%x"
|
||||
.align 2
|
||||
..skip_data:
|
||||
addis r3,r0,MEM_CHK_START_ADDR@h
|
||||
ori r3,r3,MEM_CHK_START_ADDR@l
|
||||
addis r4,r0,MEM_CHK_SIZE@h
|
||||
ori r4,r4,MEM_CHK_SIZE@l
|
||||
mflr r5
|
||||
// bl mem_check
|
||||
/*--------------------------------------------------------------------+
|
||||
| Initialize RAM area that holds boot information for CPU1.
|
||||
+--------------------------------------------------------------------*/
|
||||
LOAD_64BIT_VAL(r31,CPU1_DATA_STRUCT_ADDR)
|
||||
addi r3,r0,0x0000
|
||||
std r3,CPU1_DATA_STRUCT_VALID_OFF(r31)
|
||||
/*--------------------------------------------------------------------+
|
||||
| DCBZ area stack is left in the cache since there is no way to
|
||||
| invalidate data cache. This area will be written to memory at some
|
||||
| point. Main memory should be functional at this point.
|
||||
+--------------------------------------------------------------------*/
|
||||
b .init_data
|
||||
/*--------------------------------------------------------------------+
|
||||
| CPU1 will spin waiting for the CPU0 to initialize the system. CPU1
|
||||
| then will check if the image for CPU1 has been loaded. If the image
|
||||
| for CPU1 has been loaded CPU1 will jump to that image. If the image
|
||||
| for CPU1 has not been loaded CPU1 will spin waiting for the image to
|
||||
| be loaded.
|
||||
+--------------------------------------------------------------------*/
|
||||
..cpu1: LOAD_64BIT_VAL(r31,NB_HW_INIT_STATE_ASM)
|
||||
lwz r30,0x0000(r31)
|
||||
cmpi cr0,1,r30,0x0000
|
||||
beq ..cpu1
|
||||
/*--------------------------------------------------------------------+
|
||||
| Jump to SDRAM (cachable storage) and wait there.
|
||||
+--------------------------------------------------------------------*/
|
||||
sync
|
||||
ba ..loada
|
||||
/*--------------------------------------------------------------------+
|
||||
| Wait for image valid indicator.
|
||||
+--------------------------------------------------------------------*/
|
||||
..loada:LOAD_64BIT_VAL(r31,CPU1_DATA_STRUCT_ADDR)
|
||||
ld r3,CPU1_DATA_STRUCT_VALID_OFF(r31)
|
||||
cmpi cr0,1,r3,0x0000
|
||||
beq ..spin2
|
||||
ld r3,CPU1_DATA_STRUCT_SRR0_OFF(r31)
|
||||
mtspr SPR_SRR0,r3
|
||||
ld r4,CPU1_DATA_STRUCT_SRR1_OFF(r31)
|
||||
mtspr SPR_SRR1,r4
|
||||
ld r3,CPU1_DATA_STRUCT_R3_OFF(r31)
|
||||
isync
|
||||
rfid
|
||||
..spin2:mfspr r29,tblr
|
||||
LOAD_64BIT_VAL(r31,CPU1_DELAY)
|
||||
..spin3:mfspr r30,tblr
|
||||
subf r30,r29,r30
|
||||
cmp cr0,1,r30,r31
|
||||
blt ..spin3
|
||||
b ..loada
|
||||
function_epilog(init_chip)
|
||||
|
||||
|
||||
/******** init_data.s ***************/
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Init_data.
|
||||
+----------------------------------------------------------------------------*/
|
||||
function_prolog(init_data)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Check if we are running from FLASH. If running from FLASH copy 1M
|
||||
| of FLASH to SDRAM.
|
||||
+--------------------------------------------------------------------*/
|
||||
bl ..next
|
||||
..next: mflr r3
|
||||
LOAD_64BIT_VAL(r4,BOOT_BASE_AS)
|
||||
cmpld cr0,r3,r4
|
||||
blt ..sk_c
|
||||
/*--------------------------------------------------------------------+
|
||||
| Perform the copy operation. This copies data starting from SPR_HIOR
|
||||
| for number of bytes queal to __edata - __stext.
|
||||
+--------------------------------------------------------------------*/
|
||||
LOAD_64BIT_VAL(r6,__stext)
|
||||
addi r3,r6,-8
|
||||
mfspr r4,SPR_HIOR
|
||||
addi r4,r4,-8
|
||||
LOAD_64BIT_VAL(r5,__edata);
|
||||
sub r5,r5,r6
|
||||
rlwinm r5,r5,29,3,31
|
||||
addi r5,r5,0x0001
|
||||
mtctr r5
|
||||
..again1:ldu r6,0x0008(r4)
|
||||
stdu r6,0x0008(r3)
|
||||
bdnz ..again1
|
||||
/*--------------------------------------------------------------------+
|
||||
| Get the size of BSS into r6.
|
||||
+--------------------------------------------------------------------*/
|
||||
..sk_c: LOAD_64BIT_VAL(r4,__sbss)
|
||||
LOAD_64BIT_VAL(r5,__ebss)
|
||||
sub r6,r5,r4
|
||||
/*--------------------------------------------------------------------+
|
||||
| Clear BSS.
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r8,r4,-1
|
||||
mtspr ctr,r6
|
||||
addi r9,r0,0x0000
|
||||
..bag: stbu r9,0x0001(r8)
|
||||
bdnz ..bag
|
||||
/*--------------------------------------------------------------------+
|
||||
| Synchronize.
|
||||
+--------------------------------------------------------------------*/
|
||||
sync
|
||||
ba .init_cenv
|
||||
function_epilog(init_data)
|
||||
|
||||
|
||||
/******** init_cenv.s ***************/
|
||||
/*----------------------------------------------------------------------------+
|
||||
| TOC entry for __initial_stack.
|
||||
+----------------------------------------------------------------------------*/
|
||||
TOC_ENTRY(.LC0,__initial_stack)
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Initial stack.
|
||||
+----------------------------------------------------------------------------*/
|
||||
data_prolog(__initial_stack)
|
||||
.space MY_MAIN_STACK_SIZE
|
||||
data_epilog(__initial_stack)
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Init_cenv.
|
||||
+----------------------------------------------------------------------------*/
|
||||
function_prolog(init_cenv)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Load TOC. Can't use ld since the TOC value might not be aligned on
|
||||
| double word boundary. R2 is loaded for the first time here when
|
||||
| loaded by PIBS (second time when originally running from FLASH).
|
||||
+--------------------------------------------------------------------*/
|
||||
bl ..ot
|
||||
.quad .TOC.@tocbase
|
||||
..ot: mflr r3
|
||||
lwz r2,0x0000(r3)
|
||||
lwz r3,0x0004(r3)
|
||||
rldicr r2,r2,32,31
|
||||
or r2,r2,r3
|
||||
/*--------------------------------------------------------------------+
|
||||
| Get the address and size of the stack.
|
||||
+--------------------------------------------------------------------*/
|
||||
GETSYMADDR(r3,__initial_stack,.LC0)
|
||||
addis r4,r0,MY_MAIN_STACK_SIZE@h
|
||||
ori r4,r4,MY_MAIN_STACK_SIZE@l
|
||||
/*--------------------------------------------------------------------+
|
||||
| Setup the stack, stack bust be quadword (128-bit) aligned.
|
||||
+--------------------------------------------------------------------*/
|
||||
add r1,r3,r4
|
||||
addi r1,r1,-stack_frame_min
|
||||
rldicr r1,r1,0,59
|
||||
addi r5,r0,0x0000
|
||||
std r5,stack_frame_bc(r1)
|
||||
std r5,stack_frame_lr(r1)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Call the "C" function.
|
||||
+--------------------------------------------------------------------*/
|
||||
// b .my_main
|
||||
b .ppc_main
|
||||
..spin: b ..spin
|
||||
function_epilog(init_cenv)
|
||||
|
||||
|
|
|
|||
|
|
@ -0,0 +1,11 @@
|
|||
|
||||
#include <ppc970.h>
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Init_excp. The external interrupt vector should never be called before
|
||||
| io_init() is called so it can be removed from this file.
|
||||
+----------------------------------------------------------------------------*/
|
||||
function_prolog(init_excp)
|
||||
.space 0x100
|
||||
b .init_core /* 0100 */
|
||||
function_epilog(init_excp)
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -137,5 +137,6 @@ default _ROMSTART=0xfff03000
|
|||
## linuxBIOS C code runs at this location in RAM
|
||||
default _RAMBASE=0x00100000
|
||||
|
||||
default CROSS_COMPILE="powerpc-405-linux-gnu-"
|
||||
### End Options.lb
|
||||
end
|
||||
|
|
|
|||
|
|
@ -5,52 +5,53 @@
|
|||
##
|
||||
## Early board initialization, called from ppc_main()
|
||||
##
|
||||
#initobject init.c
|
||||
initobject init.c
|
||||
initobject mainboard.c
|
||||
initobject boardutil.c
|
||||
initobject timerspeed.S
|
||||
|
||||
arch ppc end
|
||||
|
||||
chip northbridge/ibm/cpc925
|
||||
device pci_domain 0 on
|
||||
device pci 00.0 on end
|
||||
device pci 00.1 on end
|
||||
device pci 01.0 on end
|
||||
device pci 02.0 on
|
||||
chip southbridge/intel/pxhd # pxhd1
|
||||
device pci 00.0 on end
|
||||
device pci 00.1 on end
|
||||
device pci 00.2 on
|
||||
chip drivers/generic/generic
|
||||
device pci 04.0 on end
|
||||
device pci 04.1 on end
|
||||
chip southbridge/amd/amd8131
|
||||
device pci 01.0 on #PCI-X Bridge
|
||||
chip drivers/pci/onboard #intel GD31244 chip
|
||||
device pci 01.0 on end #SATA controller
|
||||
end
|
||||
end
|
||||
device pci 00.3 on end
|
||||
device pci 01.1 on end #APIC controller
|
||||
device pci 02.0 on end #PCI-X Bridge
|
||||
device pci 02.1 on end #APIC controller
|
||||
device pci 03.0 on #PCI-X Bridge
|
||||
chip drivers/pci/onboard #intel i82546EB chip
|
||||
device pci 01.0 on end #GB Ethernet 0
|
||||
device pci 01.1 on end #GB Ethernet 1
|
||||
end
|
||||
end
|
||||
device pci 06.0 on end
|
||||
chip southbridge/intel/ich5r # ich5r
|
||||
device pci 1d.0 on end
|
||||
device pci 1d.1 on end
|
||||
device pci 1d.2 on end
|
||||
device pci 1d.3 off end
|
||||
device pci 1d.7 on end
|
||||
device pci 1e.0 on
|
||||
device pci 03.1 on end #APIC controller
|
||||
device pci 04.0 on end #PCI-X Bridge
|
||||
device pci 04.1 on end #APIC controller
|
||||
end #amd8131
|
||||
|
||||
chip southbridge/amd/amd8111
|
||||
device pci 5.0 on #PCI Bridge
|
||||
device pci 0.0 on end #USB Controller 0
|
||||
device pci 0.1 on end #USB Controller 1
|
||||
device pci 0.2 on end #USB Controller 2
|
||||
device pci 1.0 on end #10/100 Ethernet Controller
|
||||
chip drivers/ati/ragexl
|
||||
device pci 0c.0 on end
|
||||
device pci 3.0 on end # ATI Rage Video Controller
|
||||
end
|
||||
end
|
||||
device pci 1f.0 on
|
||||
chip superio/NSC/pc87427
|
||||
device pci 6.0 on #ISA Bridge/LPC Controller
|
||||
chip superio/NSC/pc87427 #NSC Super IO chip
|
||||
device pnp 2e.0 off end
|
||||
device pnp 2e.2 on
|
||||
# io 0x60 = 0x2f8
|
||||
# irq 0x70 = 3
|
||||
io 0x60 = 0x3f8
|
||||
irq 0x70 = 4
|
||||
end
|
||||
device pnp 2e.3 on
|
||||
# io 0x60 = 0x3f8
|
||||
# irq 0x70 = 4
|
||||
io 0x60 = 0x2f8
|
||||
irq 0x70 = 3
|
||||
end
|
||||
|
|
@ -67,36 +68,18 @@ chip northbridge/ibm/cpc925
|
|||
device pnp 2e.f on end
|
||||
device pnp 2e.10 off end
|
||||
device pnp 2e.14 off end
|
||||
end
|
||||
end
|
||||
device pci 1f.1 on end
|
||||
device pci 1f.2 off end
|
||||
device pci 1f.3 on end
|
||||
device pci 1f.5 off end
|
||||
device pci 1f.6 off end
|
||||
register "gpio[40]" = "ICH5R_GPIO_USE_AS_GPIO"
|
||||
register "gpio[48]" = "ICH5R_GPIO_USE_AS_GPIO | ICH5R_GPIO_SEL_OUTPUT | ICH5R_GPIO_LVL_LOW"
|
||||
register "gpio[41]" = "ICH5R_GPIO_USE_AS_GPIO | ICH5R_GPIO_SEL_INPUT"
|
||||
end
|
||||
end
|
||||
device apic_cluster 0 on
|
||||
chip cpu/ppc/ppc970 # cpu 0
|
||||
end
|
||||
chip cpu/ppc/ppc970 # cpu 1
|
||||
end
|
||||
end
|
||||
end
|
||||
end #NSC Super IO chip
|
||||
end #ISA Bridge/LPC
|
||||
device pci 6.1 on end #IDE Controller
|
||||
device pci 6.2 on end #SMBus Controller
|
||||
device pci 6.3 on end #ACPI
|
||||
device pci 6.5 off end #AC97 Audio
|
||||
device pci 6.6 off end #MC97 Modem
|
||||
end #amd8111
|
||||
end #pci domain 0
|
||||
end #cpc925
|
||||
|
||||
|
||||
chip cpu/ppc/ppc4xx
|
||||
device pci_domain 0 on
|
||||
device pci 0.0 on end
|
||||
chip southbridge/winbond/w83c553
|
||||
device pci 9.0 on end # ISA bridge
|
||||
device pci 9.1 on end # IDE contoller
|
||||
end
|
||||
device pci e.0 on end
|
||||
end
|
||||
chip cpu/ppc/ppc970
|
||||
end
|
||||
|
||||
##
|
||||
|
|
|
|||
|
|
@ -0,0 +1,406 @@
|
|||
/*
|
||||
* Copyright (C) 2003, Greg Watson <gwatson@lanl.gov>
|
||||
*
|
||||
* See file CREDITS for list of people who contributed to this
|
||||
* project.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of
|
||||
* the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
|
||||
* MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/*
|
||||
* Do very early board initialization:
|
||||
*
|
||||
* - Configure External Bus (EBC)
|
||||
* - Setup Flash
|
||||
* - Setup NVRTC
|
||||
* - Setup Board Control and Status Registers (BCSR)
|
||||
* - Enable UART0 for debugging
|
||||
*/
|
||||
|
||||
#include "boardutil.h"
|
||||
#include "ppc970lib.h"
|
||||
#include "ppc970.h"
|
||||
#include "stddef.h"
|
||||
#include "string.h"
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| What_platform.
|
||||
+----------------------------------------------------------------------------*/
|
||||
int what_platform()
|
||||
{
|
||||
|
||||
#ifdef PPC970FX_EVB_LITE
|
||||
return(PLATFORM_EVB_LITE);
|
||||
#endif
|
||||
#ifdef PPC970FX_EVB
|
||||
return(PLATFORM_EVB_FINAL);
|
||||
#endif
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Get_system_info. Cannot access any global variables in this function.
|
||||
+----------------------------------------------------------------------------*/
|
||||
void get_system_info(board_cfg_data_t *board_cfg)
|
||||
{
|
||||
|
||||
unsigned long msr;
|
||||
unsigned long data;
|
||||
|
||||
if (board_cfg==NULL) {
|
||||
(void)ppcHalt();
|
||||
}
|
||||
msr=ppcAndMsr((unsigned long)~MSR_EE);
|
||||
board_cfg->usr_config_ver[0]='1';
|
||||
board_cfg->usr_config_ver[1]='.';
|
||||
board_cfg->usr_config_ver[2]='0';
|
||||
board_cfg->usr_config_ver[3]='\0';
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Read power status register.
|
||||
+-------------------------------------------------------------------------*/
|
||||
data=read_psr()&SCOM_PSR_FREQ_MASK;
|
||||
if (data==SCOM_PSR_FREQ_FULL) {
|
||||
board_cfg->freq_ratio=1;
|
||||
} else if (data==SCOM_PSR_FREQ_HALF) {
|
||||
board_cfg->freq_ratio=2;
|
||||
} else if (data==SCOM_PSR_FREQ_QUARTER) {
|
||||
board_cfg->freq_ratio=4;
|
||||
} else {
|
||||
board_cfg->freq_ratio=0;
|
||||
}
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Read information passed from service processor.
|
||||
+-------------------------------------------------------------------------*/
|
||||
if (get_ei_ratio(&data)==0) {
|
||||
board_cfg->ei_ratio=data;
|
||||
} else {
|
||||
board_cfg->ei_ratio=0;
|
||||
}
|
||||
if (get_sys_clk(&data)==0) {
|
||||
board_cfg->sys_freq=data;
|
||||
} else {
|
||||
board_cfg->sys_freq=0;
|
||||
}
|
||||
if (get_pll_mult(&data)==0) {
|
||||
if (board_cfg->freq_ratio!=0) {
|
||||
board_cfg->cpu_freq=(board_cfg->sys_freq* data)/ board_cfg->freq_ratio;
|
||||
} else {
|
||||
board_cfg->cpu_freq=0;
|
||||
}
|
||||
} else {
|
||||
data=0;
|
||||
board_cfg->cpu_freq=0;
|
||||
}
|
||||
/*-------------------------------------------------------------------------+
|
||||
| On some boards we have to execute with timers running on internal clock.
|
||||
+-------------------------------------------------------------------------*/
|
||||
if ((ppcMfspr_any(SPR_HID0)&HID0_EXT_TB_EN)==0) {
|
||||
board_cfg->tmr_freq=(board_cfg->sys_freq* data)/ PPC970_TB_RATIO;
|
||||
} else {
|
||||
board_cfg->tmr_freq=EXT_TIME_BASE_FREQ;
|
||||
}
|
||||
/*-------------------------------------------------------------------------+
|
||||
| If the above calculation did not yield valid timer speed try to estimate
|
||||
| it.
|
||||
+-------------------------------------------------------------------------*/
|
||||
if (board_cfg->tmr_freq==0) {
|
||||
board_cfg->tmr_freq=timebase_speed_calc(UART1_MMIO_BASE);
|
||||
}
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Read information passed from service processor.
|
||||
+-------------------------------------------------------------------------*/
|
||||
board_cfg->mem_size=sdram_size();
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Assign rest of the information.
|
||||
+-------------------------------------------------------------------------*/
|
||||
board_cfg->ser_freq=UART_INPUT_CLOCK;
|
||||
board_cfg->procver=ppcMfspr_any(SPR_PVR);
|
||||
board_cfg->hid0=ppcMfspr_any(SPR_HID0);
|
||||
board_cfg->hid1=ppcMfspr_any(SPR_HID1);
|
||||
board_cfg->hid4=ppcMfspr_any(SPR_HID4);
|
||||
board_cfg->hid5=ppcMfspr_any(SPR_HID5);
|
||||
board_cfg->hior=ppcMfspr_any(SPR_HIOR);
|
||||
board_cfg->sdr1=ppcMfspr_any(SPR_SDR1);
|
||||
board_cfg->procstr[0]='9';
|
||||
board_cfg->procstr[1]='7';
|
||||
board_cfg->procstr[2]='0';
|
||||
board_cfg->procstr[3]='F';
|
||||
board_cfg->procstr[4]='X';
|
||||
board_cfg->procstr[5]='\0';
|
||||
board_cfg->reserved[0]='\0';
|
||||
(void)get_hwd_addr((char *)board_cfg->hwaddr0, 0);
|
||||
(void)ppcMtmsr(msr);
|
||||
return;
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Get_hwd_addr.
|
||||
+----------------------------------------------------------------------------*/
|
||||
int get_hwd_addr(char *dest,
|
||||
int ethernet_num)
|
||||
{
|
||||
|
||||
bios_data_struct_t *bios_data;
|
||||
char *src;
|
||||
unsigned char nc;
|
||||
int len;
|
||||
int num;
|
||||
|
||||
bios_data=(bios_data_struct_t *)PIBS_DATABASE_ADDR;
|
||||
if (ethernet_num!=0) {
|
||||
for(len=0;len<ETHERNET_HW_ADDR_LEN;len++) {
|
||||
dest[len]=(char)0xFF;
|
||||
}
|
||||
return(-1);
|
||||
} else {
|
||||
src=bios_data->bios_eth_hwd0;
|
||||
}
|
||||
len=0;
|
||||
while((src[len]!='\0') && (len<(ETHERNET_HW_ADDR_LEN* 3))) {
|
||||
len++;
|
||||
}
|
||||
if (len!=(ETHERNET_HW_ADDR_LEN* 2)) {
|
||||
for(len=0;len<ETHERNET_HW_ADDR_LEN;len++) {
|
||||
dest[len]=(char)0xFF;
|
||||
}
|
||||
return(-1);
|
||||
}
|
||||
for(len=0;len<(ETHERNET_HW_ADDR_LEN* 2);len++) {
|
||||
nc=toupper((int)src[len]);
|
||||
if ((nc>='0') && (nc<='9')) {
|
||||
num=nc- '0';
|
||||
} else if ((nc>='A') && (nc<='F')) {
|
||||
num=nc- 'A'+ 0xA;
|
||||
} else {
|
||||
for(len=0;len<ETHERNET_HW_ADDR_LEN;len++) {
|
||||
dest[len]=(char)0xFF;
|
||||
}
|
||||
return(-1);
|
||||
}
|
||||
if ((len%2)==0) {
|
||||
dest[len/ 2]=(char)num;
|
||||
} else {
|
||||
dest[len/ 2]=(char)((dest[len/ 2]* 0x10)+ num);
|
||||
}
|
||||
}
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Get_sys_clk.
|
||||
+----------------------------------------------------------------------------*/
|
||||
int get_sys_clk(unsigned long *value)
|
||||
{
|
||||
|
||||
unsigned long data;
|
||||
|
||||
if (read_sp_data(SUPER_IO_NVRAM_DATA_VALID, 4, &data)!=0) {
|
||||
return(-1);
|
||||
}
|
||||
if (data!=SUPER_IO_VALID_VALUE) {
|
||||
return(-1);
|
||||
}
|
||||
if (read_sp_data(SUPER_IO_NVRAM_SYS_CLK, 4, &data)!=0) {
|
||||
return(-1);
|
||||
}
|
||||
*value=data;
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Get_pll_mult.
|
||||
+----------------------------------------------------------------------------*/
|
||||
int get_pll_mult(unsigned long *value)
|
||||
{
|
||||
|
||||
unsigned long data;
|
||||
|
||||
if (read_sp_data(SUPER_IO_NVRAM_DATA_VALID, 4, &data)!=0) {
|
||||
return(-1);
|
||||
}
|
||||
if (data!=SUPER_IO_VALID_VALUE) {
|
||||
return(-1);
|
||||
}
|
||||
if (read_sp_data(SUPER_IO_NVRAM_CLK_MULT, 1, value)!=0) {
|
||||
return(-1);
|
||||
}
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Get_ei_ratio.
|
||||
+----------------------------------------------------------------------------*/
|
||||
int get_ei_ratio(unsigned long *value)
|
||||
{
|
||||
|
||||
unsigned long data;
|
||||
|
||||
if (read_sp_data(SUPER_IO_NVRAM_DATA_VALID, 4, &data)!=0) {
|
||||
return(-1);
|
||||
}
|
||||
if (data!=SUPER_IO_VALID_VALUE) {
|
||||
return(-1);
|
||||
}
|
||||
if (read_sp_data(SUPER_IO_NVRAM_EI_RATIO, 1, &data)!=0) {
|
||||
return(-1);
|
||||
}
|
||||
|
||||
if (data==0x0000000000000000) data=PPC970_EI_RATIO_000;
|
||||
else if (data==0x0000000000000001) data=PPC970_EI_RATIO_001;
|
||||
else if (data==0x0000000000000002) data=PPC970_EI_RATIO_010;
|
||||
else if (data==0x0000000000000003) data=PPC970_EI_RATIO_011;
|
||||
else if (data==0x0000000000000004) data=PPC970_EI_RATIO_100;
|
||||
else if (data==0x0000000000000005) data=PPC970_EI_RATIO_101;
|
||||
else if (data==0x0000000000000006) data=PPC970_EI_RATIO_110;
|
||||
else return(-1);
|
||||
|
||||
*value=data;
|
||||
return(0);
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Read_sp_data.
|
||||
+----------------------------------------------------------------------------*/
|
||||
int read_sp_data(unsigned int offset,
|
||||
unsigned int count, unsigned long *data)
|
||||
{
|
||||
|
||||
unsigned long addr_index;
|
||||
unsigned long addr_data;
|
||||
unsigned long addr;
|
||||
unsigned int new_data;
|
||||
unsigned int i;
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| If this is not a JS20 or EVB platform then just return.
|
||||
+-------------------------------------------------------------------------*/
|
||||
if (what_platform()==PLATFORM_EVB_FINAL) {
|
||||
addr_index=NB_HT_IO_BASE_CPU+ SUPER_IO_ADDR_NVRAM;
|
||||
addr_data=NB_HT_IO_BASE_CPU+ SUPER_IO_ADDR_NVRAM+ 1;
|
||||
*data=0x0000000000000000;
|
||||
for(i=0;i<count;i++) {
|
||||
(void)outbyte(addr_index, offset+ i);
|
||||
new_data=inbyte(addr_data);
|
||||
*data|=new_data<<((count- i- 1)* 8);
|
||||
}
|
||||
return(0);
|
||||
} else if (what_platform()==PLATFORM_EVB_LITE) {
|
||||
addr=SB_NVRAM_ADDR;
|
||||
*data=0x0000000000000000;
|
||||
for(i=0;i<count;i++) {
|
||||
new_data=inbyte(addr+ i+ offset);
|
||||
*data|=new_data<<((count- i- 1)* 8);
|
||||
}
|
||||
return(0);
|
||||
}
|
||||
return(-1);
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Write_sp_data.
|
||||
+----------------------------------------------------------------------------*/
|
||||
int write_sp_data(unsigned int offset,
|
||||
unsigned int data)
|
||||
{
|
||||
|
||||
unsigned long addr_index;
|
||||
unsigned long addr_data;
|
||||
unsigned long addr;
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| If this is not a JS20 or EVB platform then just return.
|
||||
+-------------------------------------------------------------------------*/
|
||||
if (what_platform()==PLATFORM_EVB_FINAL) {
|
||||
addr_index=NB_HT_IO_BASE_CPU+ SUPER_IO_ADDR_NVRAM;
|
||||
addr_data=NB_HT_IO_BASE_CPU+ SUPER_IO_ADDR_NVRAM+ 1;
|
||||
(void)outbyte(addr_index, offset);
|
||||
(void)outbyte(addr_data, data);
|
||||
return(0);
|
||||
} else if (what_platform()==PLATFORM_EVB_LITE) {
|
||||
addr=SB_NVRAM_ADDR;
|
||||
(void)outbyte(addr+ offset, data);
|
||||
return(0);
|
||||
}
|
||||
return(-1);
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Read_psr.
|
||||
+----------------------------------------------------------------------------*/
|
||||
unsigned long read_psr()
|
||||
{
|
||||
|
||||
unsigned long msr;
|
||||
unsigned long value;
|
||||
|
||||
msr=ppcAndMsr((unsigned long)~MSR_EE);
|
||||
(void)ppcMtspr_any(SPR_SCOMC, SCOM_ADDR_PSR_READ);
|
||||
(void)ppcIsync();
|
||||
value=ppcMfspr_any(SPR_SCOMD);
|
||||
(void)ppcIsync();
|
||||
(void)ppcMtmsr(msr);
|
||||
return(value);
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Write_pcr_pcrh.
|
||||
+----------------------------------------------------------------------------*/
|
||||
void write_pcr_pcrh(unsigned long data)
|
||||
{
|
||||
|
||||
unsigned long msr;
|
||||
|
||||
msr=ppcAndMsr((unsigned long)~MSR_EE);
|
||||
/*-------------------------------------------------------------------------+
|
||||
| First write to PCR with all 0 (errata).
|
||||
+-------------------------------------------------------------------------*/
|
||||
(void)ppcMtspr_any(SPR_SCOMD, SCOM_ADDR_PCR_DATA_MASK);
|
||||
(void)ppcIsync();
|
||||
(void)ppcMtspr_any(SPR_SCOMC, SCOM_ADDR_PCR_WRITE);
|
||||
(void)ppcIsync();
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Write to PCRH.
|
||||
+-------------------------------------------------------------------------*/
|
||||
(void)ppcMtspr_any(SPR_SCOMD, 0x0000000000000000UL);
|
||||
(void)ppcIsync();
|
||||
(void)ppcMtspr_any(SPR_SCOMC, SCOM_ADDR_PCR_WRITE);
|
||||
(void)ppcIsync();
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Write to PCR.
|
||||
+-------------------------------------------------------------------------*/
|
||||
(void)ppcMtspr_any(SPR_SCOMD, data|SCOM_ADDR_PCR_DATA_MASK);
|
||||
(void)ppcIsync();
|
||||
(void)ppcMtspr_any(SPR_SCOMC, SCOM_ADDR_PCR_WRITE);
|
||||
(void)ppcIsync();
|
||||
(void)ppcMtmsr(msr);
|
||||
return;
|
||||
}
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Is_writable.
|
||||
+----------------------------------------------------------------------------*/
|
||||
int is_writable(unsigned long addr,
|
||||
unsigned long len)
|
||||
{
|
||||
|
||||
if ((addr>=BOOT_BASE) && (addr<SDRAM_UPPER_BASE)) {
|
||||
return(0);
|
||||
}
|
||||
if ((addr+ len)>=BOOT_BASE) {
|
||||
return(0);
|
||||
}
|
||||
return(1);
|
||||
}
|
||||
|
||||
|
|
@ -0,0 +1,154 @@
|
|||
|
||||
#ifndef _boardutil_h_
|
||||
#define _boardutil_h_
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Board specific defines.
|
||||
+----------------------------------------------------------------------------*/
|
||||
#define FLASH_INTEL_SECTORSIZE 0x00020000
|
||||
#define FLASH_AMD_SECTORSIZE 0x00010000
|
||||
#define PIBS2_MAX_SIZE 0x000E0000
|
||||
#define PIBS_DATABASE_SIZE 0x00020000
|
||||
#define PIBS_DATABASE_ADDR 0x00000000FFFE0000UL
|
||||
|
||||
#define PIBS_DATA_FIELDSIZE 256
|
||||
#define ETHERNET_HW_ADDR_LEN 6
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Current board settings.
|
||||
+----------------------------------------------------------------------------*/
|
||||
typedef struct board_cfg_data {
|
||||
char usr_config_ver[4];
|
||||
unsigned char reserved[28];
|
||||
unsigned long tmr_freq;
|
||||
unsigned long mem_size;
|
||||
unsigned long ei_ratio;
|
||||
unsigned long sys_freq;
|
||||
unsigned long cpu_freq;
|
||||
unsigned long freq_ratio;
|
||||
unsigned long ser_freq;
|
||||
unsigned long procver;
|
||||
unsigned long hid0;
|
||||
unsigned long hid1;
|
||||
unsigned long hid4;
|
||||
unsigned long hid5;
|
||||
unsigned long hior;
|
||||
unsigned long sdr1;
|
||||
char procstr[16];
|
||||
unsigned char hwaddr0[ETHERNET_HW_ADDR_LEN];
|
||||
unsigned char pad_size[2];
|
||||
} board_cfg_data_t;
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| PIBS data CPU2.
|
||||
+----------------------------------------------------------------------------*/
|
||||
typedef struct cpu_data {
|
||||
unsigned long img_srr0;
|
||||
unsigned long img_srr1;
|
||||
unsigned long r3_value;
|
||||
unsigned long img_valid;
|
||||
} cpu_data_t;
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| PIBS data.
|
||||
+----------------------------------------------------------------------------*/
|
||||
typedef struct bios_data_struct {
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Is this data section valid? [TRUE|FALSE] string.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char bios_data_valid[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Information about the main PIBS board image [TRUE|FALSE] string.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char pibs2_valid[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Autoboot configuration.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char autoboot_parm[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Configuration.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char bios_eth_hwd0[PIBS_DATA_FIELDSIZE];
|
||||
char ifconfig_parm0[PIBS_DATA_FIELDSIZE];
|
||||
char route_parm[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| TFTP information.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char bios_tftp_fname[PIBS_DATA_FIELDSIZE];
|
||||
char bios_tftp_destip[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Chip and board clocking information.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char clocking_valid[PIBS_DATA_FIELDSIZE];
|
||||
char clocking_parm[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| User data, alias list, autoboot delay, dhcp flag.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char user_data[PIBS_DATA_FIELDSIZE];
|
||||
char aliaslist[PIBS_DATA_FIELDSIZE];
|
||||
char autoboot_delay[PIBS_DATA_FIELDSIZE];
|
||||
char dhcp0[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| HT link optimization variable.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char opthtlink[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Indicates IDE cable type.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char ide80wire[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| Automatically initialize IDE.
|
||||
+-------------------------------------------------------------------------*/
|
||||
char initide[PIBS_DATA_FIELDSIZE];
|
||||
/*-------------------------------------------------------------------------+
|
||||
| OpenFirmware interface private variable
|
||||
+-------------------------------------------------------------------------*/
|
||||
char openfirmware[PIBS_DATA_FIELDSIZE];
|
||||
} bios_data_struct_t;
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Function prototypes.
|
||||
+----------------------------------------------------------------------------*/
|
||||
void get_system_info(
|
||||
board_cfg_data_t *board_cfg );
|
||||
|
||||
int get_hwd_addr(
|
||||
char *dest,
|
||||
int ethernet_num );
|
||||
|
||||
int get_sys_clk(
|
||||
unsigned long *value );
|
||||
|
||||
int get_pll_mult(
|
||||
unsigned long *value );
|
||||
|
||||
int get_ei_ratio(
|
||||
unsigned long *value );
|
||||
|
||||
int read_sp_data(
|
||||
unsigned int offset,
|
||||
unsigned int count,
|
||||
unsigned long *data );
|
||||
|
||||
int write_sp_data(
|
||||
unsigned int offset,
|
||||
unsigned int data );
|
||||
|
||||
unsigned long read_psr(
|
||||
void );
|
||||
|
||||
void write_pcr_pcrh(
|
||||
unsigned long data );
|
||||
|
||||
int is_writable(
|
||||
unsigned long addr,
|
||||
unsigned long len );
|
||||
|
||||
void super_io_setup(
|
||||
void );
|
||||
|
||||
unsigned long sdram_size(
|
||||
void );
|
||||
|
||||
#endif /* _boardutil_h_ */
|
||||
|
|
@ -0,0 +1,133 @@
|
|||
/*
|
||||
* Copyright (C) 2003, Greg Watson <gwatson@lanl.gov>
|
||||
*
|
||||
* See file CREDITS for list of people who contributed to this
|
||||
* project.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License as
|
||||
* published by the Free Software Foundation; either version 2 of
|
||||
* the License, or (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
|
||||
* MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/*
|
||||
* Do very early board initialization:
|
||||
*
|
||||
* - Setup SIO
|
||||
*/
|
||||
#include "ppc970.h"
|
||||
#include "boardutil.h"
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Local defines.
|
||||
+----------------------------------------------------------------------------*/
|
||||
#define BASE_MASK 0xFFFFFFFF
|
||||
|
||||
void
|
||||
board_init(void)
|
||||
{
|
||||
super_io_setup();
|
||||
}
|
||||
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Super_io_setup.
|
||||
+----------------------------------------------------------------------------*/
|
||||
void super_io_setup()
|
||||
{
|
||||
|
||||
unsigned long io_base;
|
||||
unsigned long sio_index;
|
||||
unsigned long sio_data;
|
||||
int platform;
|
||||
unsigned int i;
|
||||
|
||||
/*-------------------------------------------------------------------------+
|
||||
| If this is not a JS20 or EVB platform then just return.
|
||||
+-------------------------------------------------------------------------*/
|
||||
platform=what_platform();
|
||||
if (platform==PLATFORM_EVB_FINAL) {
|
||||
/*----------------------------------------------------------------------+
|
||||
| Assign addresses.
|
||||
+----------------------------------------------------------------------*/
|
||||
io_base=(unsigned long)(NB_HT_IO_BASE_BYTE<<NB_HT_IO_BASE_BYTE_SH);
|
||||
io_base&=BASE_MASK;
|
||||
sio_index=io_base+ SUPER_IO_INDEX_OFF;
|
||||
sio_data=io_base+ SUPER_IO_DATA_OFF;
|
||||
/*----------------------------------------------------------------------+
|
||||
| Serial 1 setup/enable.
|
||||
+----------------------------------------------------------------------*/
|
||||
(void)outbyte(sio_index, SUPER_IO_DEVICE_SEL);
|
||||
(void)outbyte(sio_data, SUPER_IO_DEVICE_S1);
|
||||
(void)outbyte(sio_index, SUPER_IO_BASE_DEV_MSB);
|
||||
(void)outbyte(sio_data, (unsigned int)((UART0_MMIO_BASE>>8)&0xFF));
|
||||
(void)outbyte(sio_index, SUPER_IO_BASE_DEV_LSB);
|
||||
(void)outbyte(sio_data, (unsigned int)((UART0_MMIO_BASE>>0)&0xFF));
|
||||
(void)outbyte(sio_index, SUPER_IO_DEVICE_CTRL);
|
||||
(void)outbyte(sio_data, SUPER_IO_DEVICE_ENABLE);
|
||||
/*----------------------------------------------------------------------+
|
||||
| Serial 2 setup/enable.
|
||||
+----------------------------------------------------------------------*/
|
||||
(void)outbyte(sio_index, SUPER_IO_DEVICE_SEL);
|
||||
(void)outbyte(sio_data, SUPER_IO_DEVICE_S2);
|
||||
(void)outbyte(sio_index, SUPER_IO_BASE_DEV_MSB);
|
||||
(void)outbyte(sio_data, (unsigned int)((UART1_MMIO_BASE>>8)&0xFF));
|
||||
(void)outbyte(sio_index, SUPER_IO_BASE_DEV_LSB);
|
||||
(void)outbyte(sio_data, (unsigned int)((UART1_MMIO_BASE>>0)&0xFF));
|
||||
(void)outbyte(sio_index, SUPER_IO_DEVICE_CTRL);
|
||||
(void)outbyte(sio_data, SUPER_IO_DEVICE_ENABLE);
|
||||
/*----------------------------------------------------------------------+
|
||||
| X-bus setup/enable.
|
||||
+----------------------------------------------------------------------*/
|
||||
(void)outbyte(sio_index, SUPER_IO_DEVICE_SEL);
|
||||
(void)outbyte(sio_data, SUPER_IO_DEVICE_XBUS);
|
||||
(void)outbyte(sio_index, SUPER_IO_BASE_DEV_MSB);
|
||||
(void)outbyte(sio_data, (SUPER_IO_ADDR_XBUS>>8)&0xFF);
|
||||
(void)outbyte(sio_index, SUPER_IO_BASE_DEV_LSB);
|
||||
(void)outbyte(sio_data, (SUPER_IO_ADDR_XBUS>>0)&0xFF);
|
||||
(void)outbyte(sio_index, SUPER_IO_XBUS_CONFIG);
|
||||
(void)outbyte(sio_data, SUPER_IO_BIOS_SIZE_1M);
|
||||
(void)outbyte(sio_index, SUPER_IO_DEVICE_CTRL);
|
||||
(void)outbyte(sio_data, SUPER_IO_DEVICE_ENABLE);
|
||||
for(i=0;i<16;i++) {
|
||||
(void)outbyte(io_base+ SUPER_IO_XBUS_HOST_ACCESS, i);
|
||||
}
|
||||
/*----------------------------------------------------------------------+
|
||||
| RTC setup/enable.
|
||||
+----------------------------------------------------------------------*/
|
||||
(void)outbyte(sio_index, SUPER_IO_DEVICE_SEL);
|
||||
(void)outbyte(sio_data, SUPER_IO_DEVICE_RTC);
|
||||
(void)outbyte(sio_index, SUPER_IO_BASE_DEV_MSB);
|
||||
(void)outbyte(sio_data, (SUPER_IO_ADDR_RTC>>8)&0xFF);
|
||||
(void)outbyte(sio_index, SUPER_IO_BASE_DEV_LSB);
|
||||
(void)outbyte(sio_data, (SUPER_IO_ADDR_RTC>>0)&0xFF);
|
||||
(void)outbyte(sio_index, SUPER_IO_EXT_DEV_MSB);
|
||||
(void)outbyte(sio_data, (SUPER_IO_ADDR_NVRAM>>8)&0xFF);
|
||||
(void)outbyte(sio_index, SUPER_IO_EXT_DEV_LSB);
|
||||
(void)outbyte(sio_data, (SUPER_IO_ADDR_NVRAM>>0)&0xFF);
|
||||
(void)outbyte(sio_index, SUPER_IO_RTC_DATE_ALARM_OFF);
|
||||
(void)outbyte(sio_data, SUPER_IO_RTC_DATE_ALARM_LOC);
|
||||
(void)outbyte(sio_index, SUPER_IO_RTC_MONTH_ALARM_OFF);
|
||||
(void)outbyte(sio_data, SUPER_IO_RTC_MONTH_ALARM_LOC);
|
||||
(void)outbyte(sio_index, SUPER_IO_RTC_CENTURY_ALARM_OFF);
|
||||
(void)outbyte(sio_data, SUPER_IO_RTC_CENTURY_ALARM_LOC);
|
||||
(void)outbyte(sio_index, SUPER_IO_DEVICE_CTRL);
|
||||
(void)outbyte(sio_data, SUPER_IO_DEVICE_ENABLE);
|
||||
}
|
||||
return;
|
||||
}
|
||||
|
||||
void
|
||||
board_init2(void)
|
||||
{
|
||||
}
|
||||
|
|
@ -0,0 +1,12 @@
|
|||
#include <console/console.h>
|
||||
#include <device/device.h>
|
||||
#include <device/pci.h>
|
||||
#include <device/pci_ids.h>
|
||||
#include <device/pci_ops.h>
|
||||
#include "chip.h"
|
||||
|
||||
#if CONFIG_CHIP_NAME == 1
|
||||
struct chip_operations mainboard_tyan_s2735_ops = {
|
||||
CHIP_NAME("Momentum Apache mainboard")
|
||||
};
|
||||
#endif
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,378 @@
|
|||
#include <ppc970.h>
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Cycle counts ((1/ 9600)* 10) / (1/speed)) - 2%.
|
||||
+----------------------------------------------------------------------------*/
|
||||
#define SPEED_6_25 (0x0000196E- (65* 2))
|
||||
#define SPEED_7_159 (0x00001D21- (74* 2))
|
||||
#define SPEED_8_33 (0x000021E5- (86* 2))
|
||||
#define SPEED_10_4 (0x00002A51- (108* 2))
|
||||
#define SPEED_14_318 (0x00003A42- (149* 2))
|
||||
#define SPEED_16_66 (0x000043D0- (173* 2))
|
||||
#define SPEED_25 (0x000065B9- (260* 2))
|
||||
#define SPEED_33 (0x000087A2- (347* 2))
|
||||
#define SPEED_40 (0x0000A2C2- (416* 2))
|
||||
#define SPEED_50 (0x0000CB73- (520* 2))
|
||||
#define SPEED_66 (0x00010C8E- (687* 2))
|
||||
#define SPEED_80 (0x00014585- (833* 2))
|
||||
#define SPEED_100 (0x000196E6- (1041* 2))
|
||||
#define SPEED_125 (0x0001FCA0- (1302* 2))
|
||||
#define SPEED_133 (0x00021D2D- (1385* 2))
|
||||
#define SPEED_150 (0x0002625A- (1562* 2))
|
||||
#define SPEED_166 (0x0002A374- (1729* 2))
|
||||
#define SPEED_175 (0x0002C813- (1822* 2))
|
||||
#define SPEED_200 (0x00032DCD- (2093* 2))
|
||||
#define SPEED_225 (0x00039387- (2343* 2))
|
||||
#define SPEED_250 (0x0003F940- (2604* 2))
|
||||
#define SPEED_275 (0x00045EFA- (2864* 2))
|
||||
#define SPEED_300 (0x0004C4B4- (3125* 2))
|
||||
#define SPEED_3375 (0x00055D4A- (3515* 2))
|
||||
#define SPEED_375 (0x0005F5E1- (3906* 2))
|
||||
#define SPEED_400 (0x00065B9A- (4166* 2))
|
||||
#define SPEED_433 (0x0006E1E1- (4510* 2))
|
||||
#define SPEED_466 (0x00076828- (4854* 2))
|
||||
#define SPEED_500 (0x0007F281- (5208* 2))
|
||||
|
||||
/*----------------------------------------------------------------------------+
|
||||
| Timebase_speed_calc
|
||||
+----------------------------------------------------------------------------*/
|
||||
function_prolog(timebase_speed_calc)
|
||||
mfmsr r10
|
||||
rlwinm r11,r10,0,17,15
|
||||
mtmsrd r11,1
|
||||
isync
|
||||
/*--------------------------------------------------------------------+
|
||||
| Make sure that all the characters in the transmit buffer are sent.
|
||||
+--------------------------------------------------------------------*/
|
||||
..sent: lbz r6,asyncLSR(r3)
|
||||
andi. r6,r6,0x0060
|
||||
cmpi cr0,1,r6,0x0060
|
||||
bne ..sent
|
||||
/*--------------------------------------------------------------------+
|
||||
| Store current serial port settings in r11, r12.
|
||||
| r11 BH (baud high), BL (baud low), LCR
|
||||
| r12 MCR, IER, FCR
|
||||
+--------------------------------------------------------------------*/
|
||||
lbz r4,asyncLCR(r3)
|
||||
ori r11,r4,0x0000
|
||||
lbz r4,asyncFCR(r3)
|
||||
ori r12,r4,0x0000
|
||||
lbz r4,asyncIER(r3)
|
||||
rlwimi r12,r4,8,16,23
|
||||
lbz r4,asyncMCR(r3)
|
||||
rlwimi r12,r4,16,8,15
|
||||
/*--------------------------------------------------------------------+
|
||||
| Store BH and BL and program new baud rate.
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r4,r0,0x80
|
||||
stb r4,asyncLCR(r3)
|
||||
lbz r4,asyncDLABMsb(r3)
|
||||
rlwimi r11,r4,16,8,15
|
||||
addi r4,r0,DIV_HIGH_9600
|
||||
stb r4,asyncDLABMsb(r3)
|
||||
lbz r4,asyncDLABLsb(r3)
|
||||
rlwimi r11,r4,8,16,23
|
||||
addi r4,r0,DIV_LOW_9600
|
||||
stb r4,asyncDLABLsb(r3)
|
||||
addi r4,r0,0x03
|
||||
stb r4,asyncLCR(r3)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Put the serial port in loop-back mode.
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r4,r0,0x00
|
||||
stb r4,asyncFCR(r3)
|
||||
stb r4,asyncIER(r3)
|
||||
addi r4,r0,0x10
|
||||
stb r4,asyncMCR(r3)
|
||||
lbz r4,asyncRxBuffer(r3)
|
||||
addi r4,r0,0x0041
|
||||
/*--------------------------------------------------------------------+
|
||||
| Again make sure there are no characters in transmit buffer.
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r5,r0,0
|
||||
..again:lbz r6,asyncLSR(r3)
|
||||
andi. r6,r6,0x0060
|
||||
cmpi cr0,1,r6,0x0060
|
||||
bne ..again
|
||||
/*--------------------------------------------------------------------+
|
||||
| Take a snapshot of the timebase.
|
||||
+--------------------------------------------------------------------*/
|
||||
mfspr r7,tblr
|
||||
/*--------------------------------------------------------------------+
|
||||
| Send a character while in loopback mode. This will be done twice.
|
||||
| Once to get the instuctions into I-cache, the second time for the
|
||||
| real measurement.
|
||||
+--------------------------------------------------------------------*/
|
||||
stb r4,asyncTxBuffer(r3)
|
||||
..spnlp:lbz r6,asyncLSR(r3)
|
||||
andi. r6,r6,0x01
|
||||
beq ..spnlp
|
||||
mfspr r9,tblr
|
||||
/*--------------------------------------------------------------------+
|
||||
| Perform subtraction to determine how many timebase ticks it took
|
||||
| to transmit the character.
|
||||
+--------------------------------------------------------------------*/
|
||||
subfc r9,r7,r9
|
||||
/*--------------------------------------------------------------------+
|
||||
| Consume the character sent in loopback mode.
|
||||
+--------------------------------------------------------------------*/
|
||||
lbz r4,asyncRxBuffer(r3)
|
||||
eieio
|
||||
/*--------------------------------------------------------------------+
|
||||
| If the first character was just sent, go back and send a second.
|
||||
+--------------------------------------------------------------------*/
|
||||
cmpi cr0,1,r5,0x0000
|
||||
addi r5,r5,1
|
||||
beq ..again
|
||||
/*--------------------------------------------------------------------+
|
||||
| Restore serial port settings.
|
||||
+--------------------------------------------------------------------*/
|
||||
addi r4,r0,0x80
|
||||
stb r4,asyncLCR(r3)
|
||||
rlwinm r4,r11,16,24,31
|
||||
stb r4,asyncDLABMsb(r3)
|
||||
rlwinm r4,r11,24,24,31
|
||||
stb r4,asyncDLABLsb(r3)
|
||||
rlwinm r4,r11,0,24,31
|
||||
stb r4,asyncLCR(r3)
|
||||
rlwinm r4,r12,16,24,31
|
||||
stb r4,asyncMCR(r3)
|
||||
rlwinm r4,r12,24,24,31
|
||||
stb r4,asyncIER(r3)
|
||||
rlwinm r4,r12,0,24,31
|
||||
stb r4,asyncFCR(r3)
|
||||
/*--------------------------------------------------------------------+
|
||||
| Calculate timebase speed (r9 is the time we are referencing).
|
||||
+--------------------------------------------------------------------*/
|
||||
addis r4,r0,SPEED_7_159@h
|
||||
ori r4,r4,SPEED_7_159@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq6
|
||||
addis r4,r0,SPEED_8_33@h
|
||||
ori r4,r4,SPEED_8_33@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq7
|
||||
addis r4,r0,SPEED_10_4@h
|
||||
ori r4,r4,SPEED_10_4@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq8
|
||||
addis r4,r0,SPEED_14_318@h
|
||||
ori r4,r4,SPEED_14_318@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq10
|
||||
addis r4,r0,SPEED_16_66@h
|
||||
ori r4,r4,SPEED_16_66@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq14
|
||||
addis r4,r0,SPEED_25@h
|
||||
ori r4,r4,SPEED_25@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq16
|
||||
addis r4,r0,SPEED_33@h
|
||||
ori r4,r4,SPEED_33@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq25
|
||||
addis r4,r0,SPEED_40@h
|
||||
ori r4,r4,SPEED_40@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq33
|
||||
addis r4,r0,SPEED_50@h
|
||||
ori r4,r4,SPEED_50@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq40
|
||||
addis r4,r0,SPEED_66@h
|
||||
ori r4,r4,SPEED_66@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq50
|
||||
addis r4,r0,SPEED_80@h
|
||||
ori r4,r4,SPEED_80@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq66
|
||||
addis r4,r0,SPEED_100@h
|
||||
ori r4,r4,SPEED_100@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq80
|
||||
addis r4,r0,SPEED_125@h
|
||||
ori r4,r4,SPEED_125@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq100
|
||||
addis r4,r0,SPEED_133@h
|
||||
ori r4,r4,SPEED_133@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq125
|
||||
addis r4,r0,SPEED_150@h
|
||||
ori r4,r4,SPEED_150@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq133
|
||||
addis r4,r0,SPEED_166@h
|
||||
ori r4,r4,SPEED_166@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq150
|
||||
addis r4,r0,SPEED_175@h
|
||||
ori r4,r4,SPEED_175@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq166
|
||||
addis r4,r0,SPEED_200@h
|
||||
ori r4,r4,SPEED_200@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq175
|
||||
addis r4,r0,SPEED_225@h
|
||||
ori r4,r4,SPEED_225@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq200
|
||||
addis r4,r0,SPEED_250@h
|
||||
ori r4,r4,SPEED_250@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq225
|
||||
addis r4,r0,SPEED_275@h
|
||||
ori r4,r4,SPEED_275@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq250
|
||||
addis r4,r0,SPEED_300@h
|
||||
ori r4,r4,SPEED_300@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq275
|
||||
addis r4,r0,SPEED_3375@h
|
||||
ori r4,r4,SPEED_3375@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq300
|
||||
addis r4,r0,SPEED_375@h
|
||||
ori r4,r4,SPEED_375@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq3375
|
||||
addis r4,r0,SPEED_400@h
|
||||
ori r4,r4,SPEED_400@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq375
|
||||
addis r4,r0,SPEED_433@h
|
||||
ori r4,r4,SPEED_433@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq400
|
||||
addis r4,r0,SPEED_466@h
|
||||
ori r4,r4,SPEED_466@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq433
|
||||
addis r4,r0,SPEED_500@h
|
||||
ori r4,r4,SPEED_500@l
|
||||
cmp cr0,r9,r4
|
||||
blt ..freq466
|
||||
b ..freq500
|
||||
..freq6:
|
||||
addis r3,r0,0x005F
|
||||
ori r3,r3,0x5e10
|
||||
b ..end
|
||||
..freq7:
|
||||
addis r3,r0,0x006D
|
||||
ori r3,r3,0x3CD8
|
||||
b ..end
|
||||
..freq8:
|
||||
addis r3,r0,0x007F
|
||||
ori r3,r3,0x2815
|
||||
b ..end
|
||||
..freq10:
|
||||
addis r3,r0,0x009e
|
||||
ori r3,r3,0xb100
|
||||
b ..end
|
||||
..freq14:
|
||||
addis r3,r0,0x00da
|
||||
ori r3,r3,0x79b0
|
||||
b ..end
|
||||
..freq16:
|
||||
addis r3,r0,0x00fe
|
||||
ori r3,r3,0x502A
|
||||
b ..end
|
||||
..freq25:
|
||||
addis r3,r0,0x017D
|
||||
ori r3,r3,0x7840
|
||||
b ..end
|
||||
..freq33:
|
||||
addis r3,r0,0x01FC
|
||||
ori r3,r3,0xA055
|
||||
b ..end
|
||||
..freq40:
|
||||
addis r3,r0,0x0262
|
||||
ori r3,r3,0x5A00
|
||||
b ..end
|
||||
..freq50:
|
||||
addis r3,r0,0x02FA
|
||||
ori r3,r3,0xF080
|
||||
b ..end
|
||||
..freq66:
|
||||
addis r3,r0,0x03F9
|
||||
ori r3,r3,0x40AA
|
||||
b ..end
|
||||
..freq80:
|
||||
addis r3,r0,0x04C4
|
||||
ori r3,r3,0xB400
|
||||
b ..end
|
||||
..freq100:
|
||||
addis r3,r0,0x05F5
|
||||
ori r3,r3,0xE100
|
||||
b ..end
|
||||
..freq125:
|
||||
addis r3,r0,0x0773
|
||||
ori r3,r3,0x5940
|
||||
b ..end
|
||||
..freq133:
|
||||
addis r3,r0,0x07F2
|
||||
ori r3,r3,0x8155
|
||||
b ..end
|
||||
..freq150:
|
||||
addis r3,r0,0x08F0
|
||||
ori r3,r3,0xD180
|
||||
b ..end
|
||||
..freq166:
|
||||
addis r3,r0,0x09EF
|
||||
ori r3,r3,0x21AA
|
||||
b ..end
|
||||
..freq175:
|
||||
addis r3,r0,0x0A6E
|
||||
ori r3,r3,0x49C0
|
||||
b ..end
|
||||
..freq200:
|
||||
addis r3,r0,0x0BEB
|
||||
ori r3,r3,0xC200
|
||||
b ..end
|
||||
..freq225:
|
||||
addis r3,r0,0x0D69
|
||||
ori r3,r3,0x3A40
|
||||
b ..end
|
||||
..freq250:
|
||||
addis r3,r0,0x0EE6
|
||||
ori r3,r3,0xB280
|
||||
b ..end
|
||||
..freq275:
|
||||
addis r3,r0,0x1064
|
||||
ori r3,r3,0x2AC0
|
||||
b ..end
|
||||
..freq300:
|
||||
addis r3,r0,0x11E1
|
||||
ori r3,r3,0xA300
|
||||
b ..end
|
||||
..freq3375:
|
||||
addis r3,r0,0x141D
|
||||
ori r3,r3,0xD760
|
||||
b ..end
|
||||
..freq375:
|
||||
addis r3,r0,0x165A
|
||||
ori r3,r3,0x0BC0
|
||||
b ..end
|
||||
..freq400:
|
||||
addis r3,r0,0x17D7
|
||||
ori r3,r3,0x8400
|
||||
b ..end
|
||||
..freq433:
|
||||
addis r3,r0,0x19CF
|
||||
ori r3,r3,0x0E40
|
||||
b ..end
|
||||
..freq466:
|
||||
addis r3,r0,0x1BC6
|
||||
ori r3,r3,0x9880
|
||||
b ..end
|
||||
..freq500:
|
||||
addis r3,r0,0x1DCD
|
||||
ori r3,r3,0x6500
|
||||
..end: mtmsrd r10,1
|
||||
isync
|
||||
blr
|
||||
function_epilog(timebase_speed_calc)
|
||||
|
|
@ -6,7 +6,9 @@ config chip.h
|
|||
|
||||
initobject cpc925.o
|
||||
initobject cpc925_pci.o
|
||||
initobject cpc925_sdram.o
|
||||
|
||||
object cpc925.o
|
||||
object cpc925_pci.o
|
||||
object cpc925_sdram.o
|
||||
driver cpc925_northbridge.o
|
||||
|
|
|
|||
|
|
@ -0,0 +1,13 @@
|
|||
#include "ppc970.h"
|
||||
|
||||
unsigned long sdram_size(void)
|
||||
{
|
||||
unsigned long addr1, addr2;
|
||||
|
||||
addr1=inint(NB_SDRAM_BASE+NB_SDRAM_MEMMODE7)&SDRAM_MEMMODE_BASEBANKADDR;
|
||||
addr1=addr1<<11;
|
||||
addr2=inint(NB_SDRAM_BASE+NB_SDRAM_MEMBOUNDAD7)&SDRAM_MEMBOUNDAD_BASEBANKADDR;
|
||||
addr2=addr2<<3;
|
||||
return(addr1|addr2);
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue