manpreet's new files for 440bx.

The name 'l440gx' is sort of a generic mainboard.
This commit is contained in:
Ronald G. Minnich 2001-05-07 01:42:59 +00:00
commit 57ae756c26
10 changed files with 946 additions and 0 deletions

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#!/bin/sh
phlash=$1
if [ "$phlash" = "" ] ; then
phlash=p11-0102
fi
dd bs=65696 conv=sync of=/tmp/$phlash.bi1 if=$phlash.bi1
dd bs=65696 conv=sync of=/tmp/$phlash.bio if=$phlash.bio
dd bs=65696 conv=sync of=/tmp/$phlash.bi3 if=$phlash.bi3
dd bs=65696 conv=sync of=/tmp/$phlash.bi2 if=$phlash.bi2
dd bs=65696 conv=sync of=/tmp/$phlash.bi5 if=$phlash.bi5
dd bs=65696 conv=sync of=/tmp/$phlash.bi4 if=$phlash.bi4
dd bs=65696 conv=sync of=/tmp/$phlash.bi7 if=$phlash.bi7
dd bs=65696 conv=sync of=/tmp/$phlash.bi6 if=$phlash.bi6
dd bs=65696 conv=sync of=/tmp/$phlash.bi9 if=$phlash.bi9
dd bs=65696 conv=sync of=/tmp/$phlash.bi8 if=$phlash.bi8
dd bs=65696 conv=sync of=/tmp/$phlash.bia if=$phlash.bia

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northbridge intel/440bx
southbridge intel/piix4e
superio SMC/fdc37c669
option ENABLE_FIXED_AND_VARIABLE_MTRRS
option PIIX4_DEVFN=0x38
option NO_KEYBOARD
option ZKERNEL_START=0xfffc0000
option ZKERNEL_MASK=0x7f
option L440BX
option SMC_BASE=0x3F0
object mainboard.o
cpu p6
cpu p5
makerule phlash_floppy: phlash ; mcopy -o /tmp/$(PHLASH_BASE_NAME).bi? a:
makerule phlash: $(BOOT_IMAGE) linuxbios.rom headers ; rm -f xa?
addaction phlash split -b 64k $(BOOT_IMAGE)
addaction phlash # Now just touch them if we have a really
addaction phlash # small kernel!
addaction phlash touch xaa xab xac xad xae xaf xag xah
addaction phlash # this is starting at bank 4, and proceeding on. Unused banks are dups
addaction phlash # the nvram is odd, all of the banks are interleaved
addaction phlash cat $(PHLASH_BASE_NAME).bi1.header xaa > $(PHLASH_BASE_NAME).bi1 #4
addaction phlash cat $(PHLASH_BASE_NAME).bi3.header xab > $(PHLASH_BASE_NAME).bi3 #6
addaction phlash cat $(PHLASH_BASE_NAME).bi2.header xac > $(PHLASH_BASE_NAME).bi2 #7
addaction phlash cat $(PHLASH_BASE_NAME).bi4.header xad > $(PHLASH_BASE_NAME).bi4 #9
addaction phlash cat $(PHLASH_BASE_NAME).bi7.header xae > $(PHLASH_BASE_NAME).bi7 #a
addaction phlash cat $(PHLASH_BASE_NAME).bi6.header xaf > $(PHLASH_BASE_NAME).bi6 #b
addaction phlash cat $(PHLASH_BASE_NAME).bi9.header xag > $(PHLASH_BASE_NAME).bi9 #c
addaction phlash cat $(PHLASH_BASE_NAME).bi8.header xah > $(PHLASH_BASE_NAME).bi8 #d
addaction phlash cat $(PHLASH_BASE_NAME).bia.header linuxbios.rom > $(PHLASH_BASE_NAME).bia
addaction phlash # Part o & 5 seem not to be written reliably for some reason...
addaction phlash cat $(PHLASH_BASE_NAME).bio.header /dev/null > $(PHLASH_BASE_NAME).bio
addaction phlash cat $(PHLASH_BASE_NAME).bi5.header /dev/null > $(PHLASH_BASE_NAME).bi5
addaction phlash sh -x $(TOP)/src/mainboard/intel/l440bx/BUILD_PHLASH_FILES $(PHLASH_BASE_NAME)
makerule headers : $(PHLASH_BASE_NAME).bi1.header $(PHLASH_BASE_NAME).bi2.header $(PHLASH_BASE_NAME).bi3.header $(PHLASH_BASE_NAME).bi4.header $(PHLASH_BASE_NAME).bi5.header $(PHLASH_BASE_NAME).bi6.header $(PHLASH_BASE_NAME).bi7.header $(PHLASH_BASE_NAME).bi8.header $(PHLASH_BASE_NAME).bi9.header $(PHLASH_BASE_NAME).bia.header $(PHLASH_BASE_NAME).bio.header ;
makerule $(PHLASH_BASE_NAME).bi1.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi1 ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bi2.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi2 ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bi3.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi3 ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bi4.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi4 ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bi5.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi5 ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bi6.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi6 ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bi7.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi7 ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bi8.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi8 ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bi9.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi9 ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bia.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bia ; dd if=$< of=$@ bs=1 count=160
makerule $(PHLASH_BASE_NAME).bio.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bio ; dd if=$< of=$@ bs=1 count=160
addaction clean rm -f $(PHLASH_BASE_NAME)* xa?

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CPUFLAGS=-DL440BX -Di686 -Di586 -DINTEL_BRIDGE_CONFIG -DPIIX4E_NVRAM
CPUFLAGS += -D__KERNEL__
CPUFLAGS += -DINTEL_PPRO_MTRR -DPIIX4E_KEYBOARD
CPUFLAGS += -DSMP
#CPUFLAGS += -DHAVE_FRAMEBUFFER
CPUFLAGS += -DNEWPCI
CPUFLAGS += -DZKERNEL_START=0xfff40000
CPUFLAGS += -DZKERNEL_MASK=0x3ed
CPUFLAGS += -DSERIAL_CONSOLE
CPUFLAGS += -DCMD_LINE='"ro root=/dev/hda1 console=ttyS0,115200 debug 3 single"'
CPUFLAGS += -DPIIX4_DEVFN=0x90
#CPUFLAGS += -DUPDATE_MICROCODE
phlash_floppy: phlash
mcopy -o /tmp/$(PHLASH_BASE_NAME).bi? a:
crt0.s: crt0.S ../../chip/intel/intel_start32.S ../../chip/intel/intel_440ram-2.S
include ../Makefile.common
# here begins stupid stuff for the phlash program. It's ugly.
#PHLASH_BASE_NAME=p11-0105
PHLASH_BASE_NAME=p11-0102
#PHLASH_BASE_NAME=p12-0115
#PHLASH_BASE_NAME=p13-0125
phlash: vmlinux.bin.gz linuxbios.rom headers
rm -f xa?
split -b 64k vmlinux.bin.gz
# Now just touch them if we have a really
# small kernel!
touch xaa xab xac xad xae xaf xag xah
# this if starting at bank 4, and proceeding on. Unused banks are dups
# intel nvram is odd all of the banks are byte swapped
cat $(PHLASH_BASE_NAME).bi1.header xaa > $(PHLASH_BASE_NAME).bi1
cat $(PHLASH_BASE_NAME).bi3.header xab > $(PHLASH_BASE_NAME).bi3
cat $(PHLASH_BASE_NAME).bi2.header xac > $(PHLASH_BASE_NAME).bi2
cat $(PHLASH_BASE_NAME).bi4.header xad > $(PHLASH_BASE_NAME).bi4
cat $(PHLASH_BASE_NAME).bi7.header xae > $(PHLASH_BASE_NAME).bi7
cat $(PHLASH_BASE_NAME).bi6.header xaf > $(PHLASH_BASE_NAME).bi6
cat $(PHLASH_BASE_NAME).bi9.header xag > $(PHLASH_BASE_NAME).bi9
cat $(PHLASH_BASE_NAME).bi8.header xah > $(PHLASH_BASE_NAME).bi8
cat $(PHLASH_BASE_NAME).bia.header linuxbios.rom > $(PHLASH_BASE_NAME).bia
# Part o & 5 seem not to be written reliably for some reason...
cat $(PHLASH_BASE_NAME).bio.header /dev/null > $(PHLASH_BASE_NAME).bio
cat $(PHLASH_BASE_NAME).bi5.header /dev/null > $(PHLASH_BASE_NAME).bi5
sh -x BUILD_PHLASH_FILES $(PHLASH_BASE_NAME)
headers: \
$(PHLASH_BASE_NAME).bi1.header \
$(PHLASH_BASE_NAME).bi2.header \
$(PHLASH_BASE_NAME).bi3.header \
$(PHLASH_BASE_NAME).bi4.header \
$(PHLASH_BASE_NAME).bi5.header \
$(PHLASH_BASE_NAME).bi6.header \
$(PHLASH_BASE_NAME).bi7.header \
$(PHLASH_BASE_NAME).bi8.header \
$(PHLASH_BASE_NAME).bi9.header \
$(PHLASH_BASE_NAME).bia.header \
$(PHLASH_BASE_NAME).bio.header
# This builds the headers from the intel flash disk.
# we are not distributing this disk; you need to get it.
BUILDHEADER=dd if=$< of=$@ bs=1 count=160
$(PHLASH_BASE_NAME).bi1.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi1
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bi2.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi2
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bi3.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi3
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bi4.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi4
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bi5.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi5
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bi6.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi6
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bi7.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi7
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bi8.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi8
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bi9.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bi9
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bia.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bia
$(BUILDHEADER)
$(PHLASH_BASE_NAME).bio.header: $(TOP)/../intel_flash_disk/$(PHLASH_BASE_NAME).bio
$(BUILDHEADER)
clean::
rm -f $(PHLASH_BASE_NAME)*

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/*
* $ $
*
*/
#include <asm.h>
#include <intel.h>
#include <pciconf.h>
/*
* This is the entry code (the mkrom(8) utility makes a jumpvector
* to this adddess.
*
* When we get here we are in x86 real mode.
*
* %cs = 0xf000 %ip = 0x0000
* %ds = 0x0000 %es = 0x0000
* %dx = 0x0yxx (y = 3 for i386, 5 for pentium, 6 for P6,
* where x is undefined)
* %fl = 0x0002
*/
.text
.code16
#include <cpu/p5/start32.inc>
#include <pc80/i8259.inc>
#include <superio/NSC/pc87309/setup_serial.inc>
#include <pc80/serial.inc>
TTYS0_TX_STRING($ttyS0_test)
/* initialize the RAM */
/* different for each motherboard */
#include <northbridge/intel/440bx/raminit.inc>
#include <sdram/generic_sdram.inc>
#undef RAMTEST
#ifdef RAMTEST
#include <ram/ramtest.inc>
#include <cpu/p6/earlymtrr.inc>
movl $0x00000000, %eax
movl $0x0009ffff, %ebx
movl $24,%ecx
CALLSP(ramtest)
#if 0
movl $0x08000000, %eax
movl $0x08001000, %ebx
movl $24,%ecx
CALLSP(ramtest)
movl $0x10000000, %eax
movl $0x10001000, %ebx
movl $24,%ecx
CALLSP(ramtest)
#endif
#endif
/*
* Copy data into RAM and clear the BSS. Since these segments
* isn't really that big we just copy/clear using bytes, not
* double words.
*/
intel_chip_post_macro(0x11) /* post 11 */
TTYS0_TX_STRING($str_after_ram)
cld /* clear direction flag */
leal EXT(_ldata), %esi
leal EXT(_data), %edi
movl $EXT(_eldata), %ecx
subl %esi, %ecx
jz .Lnodata /* should not happen */
rep
movsb
.Lnodata:
intel_chip_post_macro(0x12) /* post 12 */
TTYS0_TX_STRING($str_after_copy)
/** clear stack */
xorl %edi, %edi
movl $_PDATABASE, %ecx
xorl %eax, %eax
rep
stosb
/** clear bss */
leal EXT(_bss), %edi
movl $EXT(_ebss), %ecx
subl %edi, %ecx
jz .Lnobss
xorl %eax, %eax
rep
stosb
.Lnobss:
/*
* Now we are finished. Memory is up, data is copied and
* bss is cleared. Now we call the ``main´´ routine and
* let it do the rest.
*/
intel_chip_post_macro(0xfe) /* post fe */
TTYS0_TX_STRING($str_pre_main)
/* set new stack */
movl $_PDATABASE, %esp
/* memory is up. Let's do the rest in C -- much easier. */
call EXT(intel_main)
/*NOTREACHED*/
.Lhlt: hlt
jmp .Lhlt
ttyS0_test: .string "\r\n\r\nHello world!!! I am here\r\n"
str_after_ram: .string "Ram Initialize?\r\n"
str_after_copy: .string "after copy?\r\n"
str_pre_main: .string "before main\r\n"
newline: .string "\r\n"

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/*
* Bootstrap code for the STPC Consumer
* Copyright (c) 1999 by Net Insight AB. All Rights Reserved.
*
* $Id$
*
*/
/* oh, barf. This won't work if all you use is .o's. -- RGM */
/*
* Written by Johan Rydberg, based on work by Daniel Kahlin.
*/
/*
* We use ELF as output format. So that we can
* debug the code in some form.
*/
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
OUTPUT_ARCH(i386)
/*
* Memory map:
*
* 0x00000 (4*4096 bytes) : stack
* 0x04000 (4096 bytes) : private data
* 0x05000 : data space
* 0x90000 : kernel stack
* 0xf0000 (64 Kbyte) : EPROM
*/
MEMORY
{
ram (rwx) : ORIGIN = 0x00000000, LENGTH = 128M /* 128 MB memory is
* max for STPC */
rom (rx) : ORIGIN = 0x000f0000, LENGTH = 128K /* 128 K EPROM */
}
_PDATABASE = 0x04000;
_RAMBASE = 0x05000;
_KERNSTK = 0x90000;
/* should be parameterized but is not, yuck! */
/*
_ROMBASE = 0xe0000;
*/
_ROMBASE = 0xf0000;
/*
* Entry point is not really nececary, since the mkrom(8)
* tool creates a entry point that jumps to $0xc000:0x0000.
*/
/* baloney, but ... RGM*/
ENTRY(_start)
SECTIONS {
/*
* First we place the code and read only data (typically const declared).
* This get placed in rom.
*/
.text _ROMBASE : {
_text = .;
*(.text);
*(.rodata);
_etext = .;
}
_pdata = .;
/*
.pdata _PDATABASE : AT ( LOADADDR(.text) + SIZEOF(.text) +
SIZEOF(.rodata)) {
*/
.pdata _PDATABASE : AT ( _etext ) {
*(.pdata);
}
_epdata = LOADADDR(.pdata) + SIZEOF(.pdata);
/*
* After the code we place initialized data (typically initialized
* global variables). This gets copied into ram by startup code.
* __data_start and __data_end shows where in ram this should be placed,
* whereas __data_loadstart and __data_loadend shows where in rom to
* copy from.
*/
.data _RAMBASE : AT ( LOADADDR(.pdata) + SIZEOF(.pdata) ) {
_data = .;
*(.data)
*(.sdata)
*(.sdata2)
*(.got)
_edata = .;
}
_ldata = LOADADDR(.data);
_eldata = LOADADDR(.data) + SIZEOF(.data);
/*
* bss does not contain data, it is just a space that should be zero
* initialized on startup. (typically uninitialized global variables)
* crt0.S fills between __bss_start and __bss_end with zeroes.
*/
.bss ( ADDR(.data) + SIZEOF(.data) ) : {
_bss = .;
*(.bss)
*(.sbss)
*(COMMON)
_ebss = .;
_heap = .;
}
}
/*
* This provides the start and end address for the whole image
*/
_image = LOADADDR(.text);
_eimage = LOADADDR(.data) + SIZEOF(.data);
/* EOF */

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#include <printk.h>
#include <pci.h>
#include <cpu/p5/io.h>
// this needs to be moved about a bit to northbridge.c etc.
void mainboard_fixup()
{
struct pci_dev *pm_pcidev, *host_bridge_pcidev, *nic_pcidev;
unsigned smbus_io, pm_io;
unsigned int i, j;
printk("intel_mainboard_fixup()\n");
#if 1
pm_pcidev = pci_find_device(0x8086, 0x7113, 0);
nic_pcidev = pci_find_device(0x8086, 0x1229, 0);
host_bridge_pcidev = pci_find_slot(0, PCI_DEVFN(0,0));
#endif
#if 1
pci_write_config_byte(nic_pcidev, 0x3c, 21);
#endif
#if 1
{
u8 byte;
u16 word;
u32 dword;
for(i = 0; i < 8; i++) {
pci_read_config_byte(host_bridge_pcidev, 0x60 +i, &byte);
printk("DRB[i] = 0x%02x\n", byte);
}
pci_read_config_byte(host_bridge_pcidev, 0x57, &byte);
printk("DRAMC = 0x%02x\n", byte);
pci_read_config_byte(host_bridge_pcidev, 0x74, &byte);
printk("RPS = 0x%02x\n", byte);
pci_read_config_word(host_bridge_pcidev, 0x78, &word);
printk("PGPOL = 0x%04x\n", word);
pci_read_config_dword(host_bridge_pcidev, 0x50, &dword);
printk("NBXCFG = 0x%04x\n", dword);
}
#endif
#if 1
printk("Reset Control Register\n");
outb(((inb(0xcf9) & 0x04) | 0x02), 0xcf9);
printk("port 92\n");
outb((inb(0x92) & 0xFE), 0x92);
printk("Disable Nmi\n");
outb(0, 0x70);
printk("enabling smbus\n");
#if 0
smbus_io = NewPciIo(0x10);
#else
smbus_io = 0xFFF0;
#endif
pci_write_config_dword(pm_pcidev, 0x90, smbus_io | 1); /* iobase addr */
pci_write_config_byte(pm_pcidev, 0xd2, (0x4 << 1) | 1); /* smbus enable */
pci_write_config_word(pm_pcidev, 0x4, 1); /* iospace enable */
printk("enable pm functions\n");
#if 0
pm_io = NewPciIo(0x40);
#else
pm_io = 0xFF80;
#endif
pci_write_config_dword(pm_pcidev, 0x40, pm_io | 1); /* iobase addr */
pci_write_config_byte(pm_pcidev, 0x80, 1); /* enable pm io address */
printk("disabling smi\n");
/* GLBEN */
outw(0x00, pm_io + 0x20);
/* GLBCTL */
outl((1 << 24), pm_io + 0x28);
printk("Disable more pm stuff\n");
/* PMEN */
outw((1 << 8), pm_io + 0x02);
/* PMCNTRL */
outw((0x5 << 10) , pm_io + 0x4);
/* PMTMR */
outl(0, pm_io + 0x08);
/* GPEN */
outw(0, pm_io + 0x0e);
/* PCNTRL */
outl(0, pm_io + 0x10);
/* GLBSTS */
/* DEVSTS */
/* GLBEN see above */
/* GLBCTL see above */
/* DEVCTL */
outl(0, pm_io + 0x2c);
/* GPIREG */
/* GPOREG */
printk("Set the subsystem vendor id\n");
pci_write_config_word(host_bridge_pcidev, 0x2c, 0x8086);
printk("Disabling pm stuff in pci config space\n");
#define MAX_COUNTERS
#ifndef MAX_COUNTERS
/* counters to 0 */
#define WHICH_COUNTERS(min,max) min
#else
/* max out the counters */
#define WHICH_COUNTERS(min,max) max
#endif
/* CNTA */
pci_write_config_dword(pm_pcidev, 0x44, WHICH_COUNTERS(0x004000f0, 0xFFFFFFFF));
/* CNTB */
pci_write_config_dword(pm_pcidev, 0x48, WHICH_COUNTERS(0x00000400, 0x007c07df));
/* GPICTL */
pci_write_config_dword(pm_pcidev, 0x4c, 0);
/* DEVRESD */
pci_write_config_dword(pm_pcidev, 0x50, 0);
/* DEVACTA */
pci_write_config_dword(pm_pcidev, 0x54, 0);
/* DEVACTB */
pci_write_config_dword(pm_pcidev, 0x58, 0);
/* DEVRESA */
pci_write_config_dword(pm_pcidev, 0x5c, 0);
/* DEVRESB */
pci_write_config_dword(pm_pcidev, 0x60, 0);
/* DEVRESC */
pci_write_config_dword(pm_pcidev, 0x64, 0); /* might kill the serial port */
/* DEVRESE */
pci_write_config_dword(pm_pcidev, 0x68, 0);
/* DEVRESF */
pci_write_config_dword(pm_pcidev, 0x6c, 0);
/* DEVRESG */
pci_write_config_dword(pm_pcidev, 0x70, 0);
/* DEVRESH */
pci_write_config_dword(pm_pcidev, 0x74, 0);
/* DEVRESI */
pci_write_config_dword(pm_pcidev, 0x78, 0);
/* DEVRESJ */
pci_write_config_dword(pm_pcidev, 0x7c, 0);
#endif
#if 1
/* Verify that smi is disabled */
printk("Testing SMI\r\n");
{
u32 value;
pci_read_config_dword(pm_pcidev, 0x58, &value);
pci_write_config_dword(pm_pcidev, 0x58, value | (1 << 25));
}
outb(inb(0xb2), 0xb2);
printk("SMI disabled\r\n");
#endif
#if 0
for(i = 0; i < 255; i++) {
printk("%08x\r\n", i);
__rdtsc_delay2(1000000000UL, pm_io);
}
#endif
}

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/*
* Enable the peripheral devices on the FDC37N769 Super IO chip
*/
/*
* This code is untested but should at least get a serial port working.
* -Tyson
*/
/* The base address is either 0x3F0 or 0x370, depending on config pin */
#ifndef SMC_BASE
#error SMC_BASE must be defined as 0x3F0 or 0x370
#endif
#if (SMC_BASE == 0x370)
/* #warning SMC_BASE set to 0x370 */
#elif (SMC_BASE == 0x3f0)
/* #warning SMC_BASE set to 0x3f0 */
#else
#error SMC_BASE defined as other than 0x3F0 or 0x370
#endif
#define SMC_INDEX SMC_BASE
#define SMC_DATA SMC_BASE+1
#define SMC_READ(index) \
mov index, %al ; \
mov $SMC_BASE, %dx ; \
outb %al, %dx ; \
inc %dx ; \
inb %dx, %al ;
#define SMC_WRITE(data, index) \
mov data, %ah ; \
mov index, %al ; \
mov $SMC_BASE, %dx ; \
outb %al, %dx ; \
inc %dx ; \
mov %ah, %al ; \
outb %al, %dx ;
/* Enter the configuration state */
mov $0x55, %al
mov $SMC_BASE, %dx
outb %al, %dx
/* Check for Device ID */
SMC_READ($0x0d)
cmp %al, 0x04
je 2f
mov $0xfe, %al
outb %al, $0x80
#if 0
1: hlt
jmp 1b
#endif
2:
/* Pin configuration - need to enable IRQ 4 output */
SMC_WRITE($0xf4, $0x03) ;
SMC_WRITE($0x88, $0x02) ;
/* Set address of parallel port */
#if 0
SMC_WRITE($0xde, $0x23) ;
#endif
/* Set address of serial port 0 */
SMC_WRITE($0xfe, $0x24) ;
/* Set address of serial port 1 */
SMC_WRITE($0xbe, $0x25) ;
/* Set IRQs of serial ports */
SMC_WRITE($0x21, $0x28) ;
/* Set valid bit */
SMC_READ($0x00)
or $0x80, %al
SMC_WRITE(%al, $0x00)
/* Exit the configuration state */
mov $0xAA, %al
mov $SMC_BASE, %dx
outb %al, %dx

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#include <subr.h>
#include <cpu/p5/io.h>
#define PNP_COM1_DEVICE 0x03
#define PNP_COM2_DEVICE 0x03
/*
* This file is for setting up the SMC Super IO chip.
*
* This file contains some hard coded mappings for IRQs which may
* work for most boards but is really board specific. A
* configuration mechanism is needed.
*
* I have only implemented the UART features that I needed at
* the time plus enableing EPP mode to get interrupts that can
* be shared. Other features for floppies and parallel ports
* can be added by others as needed.
*
* -Tyson Sawyer tyson@rwii.com
*
* Sharing interrupts between two SMC chips doesn't work for me. -tds
*/
static int smc_configuration_state(int addr, int state) {
if ((addr!=0x370) && (addr!=0x3f0)) return(-1);
if (state) {
outb(0x55, addr);
return(0);
}
else {
outb(0xAA, addr);
return(0);
}
return(-1);
}
static int smc_write(int addr, unsigned char data, unsigned char index) {
if ((addr!=0x370) && (addr!=0x3f0)) return(-1);
outb(index, addr);
outb(data, addr+1);
return(0);
}
static int smc_read(int addr, unsigned char index, unsigned char *data) {
if ((addr!=0x370) && (addr!=0x3f0)) return(-1);
outb(index, addr);
*data = inb(addr+1);
return(0);
}
int smc_uart_setup(int addr,
int addr1, int irq1,
int addr2, int irq2) {
int rv;
unsigned char int1, int2;
unsigned char data;
if ((addr!=0x370) && (addr!=0x3f0)) return(-1);
/*
* Warning:
* Board specifc mapping of IRQs here.
* A configuration mechanism is needed.
*/
switch (irq1) {
case 3: int1 = 1; break;
case 4: int1 = 2; break;
case 5: int1 = 3; break;
case 6: int1 = 4; break;
case 7: int1 = 5; break;
case 10: int1 = 6; break;
case 11: int1 = 8; break;
default: int1 = 0;
}
switch (irq2) {
case 3: int2 = 1; break;
case 4: int2 = 2; break;
case 5: int2 = 3; break;
case 6: int2 = 4; break;
case 7: int2 = 5; break;
case 10: int2 = 6; break;
case 11: int2 = 8; break;
default: int2 = 0;
}
if (int1 == int2) {
int2 = 0x0f;
}
rv = smc_configuration_state(addr, 1); if (rv) return(rv);
rv = smc_write(addr, (addr1>>2) & 0xfe, 0x24); if (rv) return(rv);
rv = smc_write(addr, (addr2>>2) & 0xfe, 0x25); if (rv) return(rv);
rv = smc_write(addr, (int1<<4) | int2, 0x28); if (rv) return(rv);
/* Enable INTB output */
if ((int1==2) || (int2==2)) {
rv = smc_read(addr, 0x03, &data); if (rv) return(rv);
rv = smc_write(addr, data | 0x84, 0x03); if (rv) return(rv);
}
rv = smc_configuration_state(addr, 0); return(rv);
}
int smc_pp_setup(int addr, int pp_addr, int mode) {
int rv;
unsigned char data;
rv = smc_configuration_state(addr, 1); if (rv) return(rv);
rv = smc_read(addr, 0x04, &data); if (rv) return(rv);
data = (data & (~0x03)) | (mode & 0x03);
rv = smc_write(addr, data, 0x04); if (rv) return(rv);
rv = smc_read(addr, 0x01, &data); if (rv) return(rv);
data = data & (~0x08);
rv = smc_write(addr, data, 0x01); if (rv) return(rv);
rv = smc_write(addr, (pp_addr>>2) & 0xff, 0x23); if (rv) return(rv);
rv = smc_configuration_state(addr, 0); return(rv);
}
int smc_validbit(int addr, int valid) {
int rv;
unsigned char data;
if ((addr!=0x370) && (addr!=0x3f0)) return(-1);
rv = smc_configuration_state(addr, 1); if (rv) return(rv);
rv = smc_read(addr, 0x00, &data); if (rv) return(rv);
if (valid) {
data = data | 0x80;
}
else {
data = data & (~0x80);
}
rv = smc_write(addr, data, 0x00); if (rv) return(rv);
rv = smc_configuration_state(addr, 0); return(rv);
}
/*
* ============== Linux bios standard superio functions ========
*
* These functions suck.
*/
void
enter_pnp()
{
// unlock it XXX make this a subr at some point
// outb(0x87, PNPADDR);
// outb(0x87, PNPADDR);
}
void
exit_pnp()
{
/* all done. */
// select configure control
// outb(0xaa, PNPADDR);
}
#ifdef MUST_ENABLE_FLOPPY
void enable_floppy()
{
/* now set the LDN to floppy LDN */
// outb(0x7, PNPADDR); /* pick reg. 7 */
// outb(0x0, PNPDATA); /* LDN 0 to reg. 7 */
/* now select register 0x30, and set bit 1 in that register */
// outb(0x30, PNPADDR);
// outb(0x1, PNPDATA);
}
#endif /* MUST_ENABLE_FLOPPY */
void
enable_com(int com)
{
// unsigned char b;
/* now set the LDN to com LDN */
// outb(0x7, PNPADDR); /* pick reg. 7 */
// outb(com, PNPDATA); /* LDN 0 to reg. 7 */
/* now select register 0x30, and set bit 1 in that register */
// outb(0x30, PNPADDR);
// outb(0x1, PNPDATA);
}
void
final_superio_fixup()
{
enter_pnp();
#ifdef MUST_ENABLE_FLOPPY
enable_floppy();
#endif
enable_com(PNP_COM1_DEVICE);
enable_com(PNP_COM2_DEVICE);
exit_pnp();
}

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#ifndef _SMC_SUPER_IO_H_
#define _SMC_SUPER_IO_H_
#define SMC_PP_MODE_SPP 0x00
#define SMC_PP_MODE_EPP_SPP 0x01
#define SMC_PP_MODE_ECP 0x02
#define SMC_PP_MODE_EPP_ECP 0x03
int smc_uart_setup(int smc_addr,
int addr1, int irq1,
int addr2, int irq2);
int smc_pp_setup(int smc_addr, int pp_addr, int mode);
int smc_validbit(int smc_addr, int valid);
#endif /* _SMC_SUPER_IO_H_ */

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# This will make a target directory of ./winfast
# Note that this is RELATIVE TO WHERE YOU ARE WHEN YOU RUN THE
# CONFIG TOOL. Make it absolute if you like
arch i386
target /tmp/fbios/l440bx
mainboard intel/l440bx
# Enable Serial Console for debugging
# It will come up at 115200,8n1
option SERIAL_CONSOLE
# Enable MicroCode update and L2 Cache init for PII and PIII
option UPDATE_MICROCODE
option CONFIGURE_L2_CACHE
# Use the internal VGA frame buffer device
#option HAVE_FRAMEBUFFER
option USE_CACHE_RAM=0
option USE_GENERIC_ROM=1
option USE_ELF_BOOT=0
#makedefine PHLASH_BASE_NAME=p13-0125
#makedefine BOOT_IMAGE=/tftpboot/netboot.ebi
makedefine BOOT_IMAGE=vmlinux.bin.gz.block
# Path to your kernel (vmlinux)
# NOTE; you need a path to your test12 kernel here.
linux /manpreet/freebios/linux
# Kernel command line parameters
#commandline ro panic=5 root=/dev/hda5 console=ttyS0,115200 debug 3