Initial commit of Intel Clearwater 533 (se7501cw2) support

This commit is contained in:
Steven James 2003-02-07 00:25:22 +00:00
commit 47994cfb3e
17 changed files with 3578 additions and 0 deletions

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## Set all of the defaults for an x86 architecture
##
arch i386
##
## Build our 16 bit and 32 bit linuxBIOS entry code
##
mainboardinit cpu/i386/entry16.inc
mainboardinit cpu/i386/entry32.inc
ldscript cpu/i386/entry16.lds
ldscript cpu/i386/entry32.lds
##
## Test for logical cpu thats not BSP
## This is hyperthreading!
## it may break!
##
#mainboardinit cpu/i786/logical_cpu.inc
##
## Build our reset vector (This is where linuxBIOS is entered)
##
mainboardinit cpu/i386/reset16.inc USE_FALLBACK_IMAGE
ldscript cpu/i386/reset16.lds USE_FALLBACK_IMAGE
mainboardinit cpu/i386/reset32.inc USE_NORMAL_IMAGE
ldscript cpu/i386/reset32.lds USE_NORMAL_IMAGE
##
## Include an id string (For safe flashing)
##
mainboardinit arch/i386/lib/id.inc
ldscript arch/i386/lib/id.lds
##
## Startup code for secondary CPUS
##
#mainboardinit arch/i386/smp/secondary.inc
#mainboardinit arch/i386/lib/cpu_reset.inc
## This is the early phase of linuxBIOS startup
## Things are delicate and we test to see if we should
## failover to another image.
mainboardinit northbridge/intel/E7501/reset_test.inc
mainboardinit arch/i386/lib/noop_failover.inc USE_NORMAL_IMAGE
mainboardinit southbridge/intel/82801/cmos_failover.inc USE_FALLBACK_IMAGE
ldscript mainboard/intel/Clearwater533/failover.lds USE_FALLBACK_IMAGE
###
### O.k. We aren't just an intermediary anymore!
###
##
## Setup our mtrrs
##
mainboardinit cpu/i786/earlymtrr.inc
##
## TESTING!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
##
mainboardinit mainboard/intel/Clearwater/preserial.inc
##
## Setup the serial port
##
mainboardinit superio/winbond/w83627hf/setup_serial.inc
#mainboardinit superio/winbond/w83627hf/setup_led.inc
mainboardinit pc80/serial.inc
mainboardinit arch/i386/lib/console.inc
mainboardinit ram/ramtest.inc
option RAMTEST=1
#Debug SMJ
mainboardinit ram/dump_northbridge.inc
#mainboardinit mainboard/intel/Clearwater/dumpdev.inc
##
## Setup RAM
##
mainboardinit southbridge/intel/82801ca/smbus.inc
mainboardinit southbridge/intel/82801ca/smbus_read_block.inc
mainboardinit southbridge/intel/82801ca/smbus_noop_read_block.inc
mainboardinit southbridge/intel/82801ca/smbus_read_byte.inc
#debugging
mainboardinit sdram/generic_dump_spd.inc USE_FALLBACK_IMAGE
##
## Include the secondary Configuration files
##
northbridge intel/E7501
southbridge intel/82801ca
southbridge intel/82870
#nsuperio NSC/pc87309 com1={1} com2={1} floppy=1 lpt=1 keyboard=1
nsuperio winbond/w83627hf com1={1} com2={1} floppy=1 lpt=1 keyboard=1
dir /src/pc80
dir /src/superio/winbond/w83627hf
dir /src/ram/
cpu p5
cpu p6
cpu i786
##
## We'll need a udelay function
##
option CONFIG_UDELAY_TSC=1
##
## Build the objects we have code for in this directory.
##
object mainboard.o
#object mtrr_values.o
object mptable.o HAVE_MP_TABLE
object irq_tables.o HAVE_PIRQ_TABLE
###
### Build options
###
##
## Location of the DIMM EEPROMS on the SMBUS
## This is fixed into a narrow range by the DIMM package standard.
##
option SMBUS_MEM_CHANNEL_OFF=4
option SMBUS_MEM_DEVICE_START=(0xa << 3)
option SMBUS_MEM_DEVICE_END=(SMBUS_MEM_DEVICE_START +2)
option SMBUS_MEM_DEVICE_INC=1
##
## Customize our winbond superio chip for this motherboard
##
#option SIO_BASE=0x2e
#option SIO_SYSTEM_CLK_INPUT=SIO_SYSTEM_CLK_INPUT_48MHZ
##
## Build code for the fallback boot
##
#option HAVE_FALLBACK_BOOT=1
##
## Build code for using cache as RAM
##
#option USE_CACHE_RAM=1
##
## Build code to reset the motherboard from linuxBIOS
##
option HAVE_HARD_RESET=1
##
## Build code to export a programmable irq routing table
##
option HAVE_PIRQ_TABLE=1
##
## Do not build special code to the keyboard
##
option NO_KEYBOARD=1
##
## Build code to export an x86 MP table
## Useful for specifying IRQ routing values
##
option HAVE_MP_TABLE=1
##
## Build code to export a CMOS option tabe table
##
option HAVE_OPTION_TABLE=1
##
## Build code for SMP support
## Only worry about 2 micro processors
##
option SMP=1
option MAX_CPUS=4
option MAX_PHYSICAL_CPUS=2
##
## Build code to setup a generic IOAPIC
##
option IOAPIC=1
##
## MEMORY_HOLE instructs earlymtrr.inc to
## enable caching from 0-640KB and to disable
## caching from 640KB-1MB using fixed MTRRs
##
## Enabling this option breaks SMP because secondary
## CPU identification depends on only variable MTRRs
## being enabled.
##
nooption MEMORY_HOLE
##
## Don't do a generic MTRR setup
## Instead use values from the fixed_mtrr_values array
##
#option HAVE_MTRR_TABLE=1
##
## Enable both fixed and variable MTRRS
## When we setup MTRRs in mtrr.c
##
## We must setup the fixed mtrrs or we confuse SMP secondary
## processor identification
##
#option ENABLE_FIXED_AND_VARIABLE_MTRRS=1
##
## Figure out which type of linuxBIOS image to build
## If we aren't a fallback image we must be a normal image
## This is useful for optional includes
##
option USE_FALLBACK_IMAGE=1
expr USE_NORMAL_IMAGE=!USE_FALLBACK_IMAGE
###
### LinuxBIOS layout values
###
## ROM_SIZE is the size of boot ROM that this board will use.
option ROM_SIZE=1048576
## ROM_IMAGE_SIZE is the amount of space to allow linuxBIOS to occupy.
option ROM_IMAGE_SIZE=65536
## LinuxBIOS C code runs at this location in RAM
option _RAMBASE=0x00008000
## For the trick of using cache as ram
## put the fake ram location at this address
#option CACHE_RAM_BASE=0xfff70000
#option CACHE_RAM_SIZE=0x00010000
##
## Use a small 8K stack
##
option STACK_SIZE=0x2000
##
## Use a small 8K heap
##
option HEAP_SIZE=0x2000
##
## Clean up the motherboard id strings
##
option MAINBOARD_PART_NUMBER=Clearwater
option MAINBOARD_VENDOR=Intel
option PYRO_SERIAL=1
##
## Only use the option table in a normal image
##
expr USE_OPTION_TABLE=!USE_FALLBACK_IMAGE
##
## Compute the location and size of where this firmware image
## (linuxBIOS plus bootloader) will live in the boot rom chip.
##
expr ROM_SECTION_SIZE =(USE_FALLBACK_IMAGE*65536)+(USE_NORMAL_IMAGE*(ROM_SIZE - 65536))
expr ROM_SECTION_OFFSET=(USE_FALLBACK_IMAGE*(ROM_SIZE-65536))+(USE_NORMAL_IMAGE*0)
##
## Compute the start location and size size of
## The linuxBIOS bootloader.
##
#expr ZKERNEL_START =(0xffffffff - ROM_SIZE + ROM_SECTION_OFFSET + 1)
expr ZKERNEL_START = 0xfff00000 + (USE_NORMAL_IMAGE * 0x10000)
expr PAYLOAD_SIZE =ROM_SECTION_SIZE - ROM_IMAGE_SIZE
##
## Compute where this copy of linuxBIOS will start in the boot rom
##
#expr _ROMBASE =ZKERNEL_START + PAYLOAD_SIZE
expr _ROMBASE = 0xffff0000 - (USE_NORMAL_IMAGE*0x10000)
##
## Compute a range of ROM that can cached to speed of linuxBIOS,
## execution speed.
##
expr XIP_ROM_SIZE = 65536
expr XIP_ROM_BASE = _ROMBASE + ROM_IMAGE_SIZE - XIP_ROM_SIZE

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# These are keyword-value pairs.
# a : separates the keyword from the value
# the value is arbitrary text delimited by newline.
# continuation, if needed, will be via the \ at the end of a line
# comments are indicated by a '#' as the first character.
# the keywords are case-INSENSITIVE
owner: Steven James
email: pyro@linuxlabs.com
#status: One of unsupported, unstable, stable
status: unstable
explanation: Brand new, some memory configs untested
flash-types: Intel 82802ac8 FWH (8Mbit), 82802ab8 (4Mbit) can be substituted
payload-types: etherboot, memtest86, pforth (an embedded Forth environment)
# e.g. linux, plan 9, wince, etc.
OS-types: linux
# e.g. "Plan 9 interrupts don't work on this chipset"
OS-issues:
console-types: serial
# vga is unsupported, unstable, or stable
vga: unsupported
# Last-known-good follows the internationl date standard: day/month/year
last-known-good: 06/02/2003
Comments:
Links:
Mainboard-revision: 0 (pre-production sample)
# What other mainboards are like this one? List them here.
AKA:

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#define S0_WAIT() \
movw $0x3fd, %dx ;\
9: inb %dx, %al ;\
test $0x40, %al ;\
je 9b
#define S0_EMIT(char) \
9: movw $0x3fd, %dx ;\
inb %dx, %al ;\
test $0x20, %al ;\
je 9b ;\
movb $char,%al ;\
movw $0x3f8, %dx ;\
outb %al, %dx
#define __CONSOLE_INLINE_TX_HEX8(byte) \
movb byte, %al ; \
shr $4, %al ; \
add $'0', %al ; \
cmp $'9', %al ; \
jle 9f ; \
add $39, %al ; \
9: ; \
movw $0x3f8, %dx ;\
outb %al, %dx ;\
10: movw $0x3fd, %dx ;\
inb %dx, %al ;\
test $0x20, %al ;\
je 10b ;\
movw $0x3f8, %dx ;\
mov byte, %al ; \
and $0x0f, %al ; \
add $'0', %al ; \
cmp $'9', %al ; \
jle 9f ; \
add $39, %al ; \
9: ; \
movw $0x3f8, %dx ;\
outb %al, %dx

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# This will make a target directory of ./clearwater1
# Note that this is RELATIVE TO WHERE YOU ARE WHEN YOU RUN THE
# CONFIG TOOL. Make it absolute if you like
target clearwater533-fallback
# Intel Clearwater (cw2) mainboard
mainboard intel/Clearwater533
# Enable Serial Console for debugging
# It will come up at 115200,8n1
option SERIAL_CONSOLE=1
# Enable MicroCode update and L2 Cache init for PII and PIII
option UPDATE_MICROCODE=1
#option CONFIGURE_L2_CACHE=1
# Use the internal VGA frame buffer device
#option HAVE_FRAMEBUFFER=1
option USE_ELF_BOOT=1
option USE_GENERIC_ROM=1
option STD_FLASH=1
option USE_FALLBACK_IMAGE = 1
option HAVE_PIRQ_TABLE=1
option DEFAULT_CONSOLE_LOGLEVEL=9
#payload /usr/local/src/LinuxBIOS/etherboot-5.0.6/src/bin32/eepro100.elf

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# Note that this is RELATIVE TO WHERE YOU ARE WHEN YOU RUN THE
# CONFIG TOOL. Make it absolute if you like
target clearwater533-primary
# Intel Clearwater (cw2) mainboard
mainboard intel/Clearwater533
# Enable Serial Console for debugging
# It will come up at 115200,8n1
option SERIAL_CONSOLE=1
# Enable MicroCode update and L2 Cache init for PII and PIII
option UPDATE_MICROCODE=1
#option CONFIGURE_L2_CACHE=1
# Use the internal VGA frame buffer device
#option HAVE_FRAMEBUFFER=1
option USE_ELF_BOOT=1
option USE_GENERIC_ROM=1
option STD_FLASH=1
option USE_FALLBACK_IMAGE = 0
option HAVE_PIRQ_TABLE=1
option DEFAULT_CONSOLE_LOGLEVEL=8
#payload /usr/local/src/LinuxBIOS/etherboot-5.0.6/src/bin32/eepro100.elf

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__normal_image = 0xf0000 - 8;

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/* This file was generated by getpir.c, do not modify!
(but if you do, please run checkpir on it to verify)
Contains the IRQ Routing Table dumped directly from your memory , wich BIOS sets up
Documentation at : http://www.microsoft.com/hwdev/busbios/PCIIRQ.HTM
*/
#include <arch/pirq_routing.h>
const struct irq_routing_table intel_irq_routing_table = {
PIRQ_SIGNATURE, /* u32 signature */
PIRQ_VERSION, /* u16 version */
32+16*17, /* there can be total 17 devices on the bus */
0, /* Where the interrupt router lies (bus) */
0xf8, /* Where the interrupt router lies (dev) */
0, /* IRQs devoted exclusively to PCI usage */
0, /* Vendor */
0, /* Device */
0, /* Crap (miniport) */
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, /* u8 rfu[11] */
0xd3, /* u8 checksum , this hase to set to some value that would give 0 after the sum of all bytes for this structure (including checksum) */
{
{0,0, {{0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0,0x10, {{0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0x1,0xe8, {{0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0x2,0x8, {{0x62, 0xdcb8}, {0x62, 0xdcb8}, {0x62, 0xdcb8}, {0x62, 0xdcb8}}, 0x2, 0},
{0x2,0x10, {{0x62, 0xdcb8}, {0x62, 0xdcb8}, {0x62, 0xdcb8}, {0x62, 0xdcb8}}, 0x3, 0},
{0x1,0xf8, {{0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0x3,0x8, {{0x62, 0xdcb8}, {0x62, 0xdcb8}, {0x62, 0xdcb8}, {0x62, 0xdcb8}}, 0x1, 0},
{0,0xe8, {{0x60, 0xdcb8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0,0xe9, {{0, 0xdef8}, {0x63, 0xdcb8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0,0xf0, {{0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0x4,0x8, {{0x61, 0xdcb8}, {0x62, 0xdcb8}, {0x61, 0xdcb8}, {0x62, 0xdcb8}}, 0x4, 0},
{0x4,0x10, {{0x63, 0xdcb8}, {0x60, 0xdcb8}, {0x63, 0xdcb8}, {0x60, 0xdcb8}}, 0x5, 0},
{0x4,0x18, {{0x69, 0xdcb8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0x4,0x20, {{0x68, 0xdcb8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0x4,0x28, {{0x6b, 0xdcb8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0x4,0x30, {{0x6a, 0xdcb8}, {0, 0xdef8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
{0,0xfb, {{0, 0xdef8}, {0x61, 0xdcb8}, {0, 0xdef8}, {0, 0xdef8}}, 0, 0},
}
};

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#include <arch/io.h>
#include <part/mainboard.h>
#include <printk.h>
#include <pci.h>
#include <pci_ids.h>
#include <southbridge/intel/82801.h>
#include <arch/smp/mpspec.h>
#include <pc80/isa_dma.h>
#include <cpu/i786/multiplier.h>
#include <cpu/i786/thermal_monitoring.h>
#include <cpu/p6/msr.h>
// #include <superio/w83627hf.h>
#include <superio/generic.h>
#include <subr.h>
#include <smbus.h>
#include <ramtest.h>
// #include <northbridge/intel/82860/rdram.h>
#include <pc80/mc146818rtc.h>
#define SMBUS_MEM_DEVICE_0 (0xa << 3)
extern int rdram_chips; /* number of ram chips on the rimms */
unsigned long initial_apicid[MAX_CPUS] =
{
0, 6, 1, 7
};
#ifndef CPU_CLOCK_MULTIPLIER
#define CPU_CLOCK_MULTIPLIER XEON_X17
#endif
#define MAINBOARD_POWER_ON 1
#define MAINBOARD_POWER_OFF 2
#ifndef MAINBOARD_POWER_ON_AFTER_POWER_FAIL
#define MAINBOARD_POWER_ON_AFTER_POWER_FAIL MAINBOARD_POWER_ON
#endif
#if 0
void dump_pci_dev(int bus, int dev, int fn)
{
unsigned int offset = 0x80000000;
unsigned int i;
unsigned short devfn;
unsigned char byte;
devfn = (dev <<3) | fn;
offset |= (bus << 16) | (devfn << 8);
printk_notice("dump %u:%u.%u:\n", bus,dev,fn);
for(i=0; i<256; i++) {
if(! (i & 0x0f))
printk_notice( "\n%02x: ", i);
pcibios_read_config_byte(bus, devfn, i, &byte);
printk_notice( "%02x ", byte);
}
printk_notice("\nDone.\n\n");
}
#endif
static void set_power_on_after_power_fail(int setting)
{
switch(setting) {
case MAINBOARD_POWER_ON:
default:
ich3_power_after_power_fail(1);
// w832627hf_power_after_power_fail(POWER_ON);
break;
case MAINBOARD_POWER_OFF:
ich3_power_after_power_fail(0);
// w832627hf_power_after_power_fail(POWER_OFF);
break;
}
}
static void set_thermal_monitoring(int thermal_monitoring)
{
int tm_high,tm_low;
rdmsr(MISC_ENABLE,tm_low,tm_high);
if(thermal_monitoring != THERMAL_MONITORING_OFF) {
tm_low |= THERMAL_MONITORING_SET;
}
else {
tm_low &= ~THERMAL_MONITORING_SET;
}
wrmsr(MISC_ENABLE,tm_low,tm_high);
return;
}
void mainboard_fixup(void)
{
int cpu_clock_multiplier;
int power_on_after_power_fail;
int thermal_monitoring;
printk_notice("CW2 mainboard fixup:\n");
ich3_enable_ioapic();
p64h2_enable_ioapic();
ich3_enable_serial_irqs();
ich3_enable_ide(1,1);
// test, SMJ
// ich3_rtc_init();
ich3_lpc_route_dma(0xff);
isa_dma_init();
ich3_1e0_misc();
ich3_1f0_misc();
// SMJ dump some registers!
#if 0
dump_pci_dev(0, 0, 0);
printk_notice("1st bridge:\n");
dump_pci_dev(0, 3, 0);
printk_notice("APIC:\n");
dump_pci_dev(1, 0x1c, 0);
dump_pci_dev(1, 0x1e, 0);
printk_notice("bridge:\n");
dump_pci_dev(1, 0x1d, 0);
dump_pci_dev(1, 0x1f, 0);
printk_notice("ether (connected to 1:0x1f.0):\n");
dump_pci_dev(3, 0x7, 0);
dump_pci_dev(3, 0x7, 1);
#endif
// test only SMJ
return;
cpu_clock_multiplier = CPU_CLOCK_MULTIPLIER;
if(get_option(&cpu_clock_multiplier, "CPU_clock_speed"))
cpu_clock_multiplier = CPU_CLOCK_MULTIPLIER;
ich3_set_cpu_multiplier(cpu_clock_multiplier);
power_on_after_power_fail = MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
if(get_option(&power_on_after_power_fail, "power_on_after_power_fail"))
power_on_after_power_fail = MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
set_power_on_after_power_fail(power_on_after_power_fail);
thermal_monitoring = THERMAL_MONITORING_OFF;
if(get_option(&thermal_monitoring, "thermal_monitoring"))
thermal_monitoring = THERMAL_MONITORING_OFF;
set_thermal_monitoring(thermal_monitoring);
return;
}
void hard_reset(void)
{
ich3_hard_reset();
}
#ifdef USE_CACHE_RAM
void cache_ram_start(void)
{
int error;
error = 0;
/* displayinit MUST PRECEDE ALL PRINTK! */
#if 1
displayinit();
#endif
printk_info("Finding PCI configuration type.\n");
pci_set_method();
printk_info("Setting up smbus controller\n");
smbus_setup();
ich3_rtc_init();
printk_info("Selecting rdram i2c bus\n");
// select_rdram_i2c();
#if 0
display_smbus_spd();
#endif
init_memory();
#if 0
{
unsigned long addr;
for(addr = 0; addr < 0x20000000; addr += 0x02000000) {
ram_fill(addr, addr + 0x400);
}
/* Do some dummy writes to flush a write cache, in the
* processor.
*/
ram_fill(0xc0000000, 0xc0000400);
for(addr = 0; addr < 0x20000000; addr += 0x02000000) {
ram_verify(addr, addr + 0x400, 1);
}
}
#endif
#if 1
printk_debug("starting ramcheck\n");
error |= ramcheck(0x00000000, 0x00080000, 40);
error |= ramcheck(0x02000000, 0x02080000, 40);
error |= ramcheck(0x04000000, 0x04080000, 40);
error |= ramcheck(0x06000000, 0x06080000, 40);
error |= ramcheck(0x08000000, 0x08080000, 40);
error |= ramcheck(0x0a000000, 0x0a080000, 40);
error |= ramcheck(0x0c000000, 0x0c080000, 40);
error |= ramcheck(0x0e000000, 0x0e080000, 40);
error |= ramcheck(0x1a000000, 0x1a080000, 40);
#if 0
error |= ramcheck(0x10000000, 0x10080000, 20);
error |= ramcheck(0x12000000, 0x12080000, 20);
error |= ramcheck(0x14000000, 0x14080000, 20);
error |= ramcheck(0x16000000, 0x16080000, 20);
error |= ramcheck(0x18000000, 0x18080000, 20);
error |= ramcheck(0x1a000000, 0x1a080000, 20);
error |= ramcheck(0x1c000000, 0x1c080000, 20);
error |= ramcheck(0x1e000000, 0x1e080000, 20);
#endif
#endif
#if 0
error |= ramcheck(0x00000000, 0x00080000, 20);
#endif
#if 0
display_rdram_regs(rdram_chips );
#endif
#if 0
display_mch_regs();
#endif
if (error) {
printk_err("Something isn't working!!!\n");
while(1);
} else {
printk_info("Leaving cacheram...\n");
}
}
#endif

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/* generatred by MPTable, version 2.0.15*/
/* as modified by RGM for LinuxBIOS */
#include <arch/smp/mpspec.h>
#include <string.h>
#include <printk.h>
#include <pci.h>
#include <stdint.h>
void *smp_write_config_table(void *v, unsigned long * processor_map)
{
static const char sig[4] = "PCMP";
static const char oem[8] = "LnxLabs ";
static const char productid[12] = "7501CW2 ";
struct mp_config_table *mc;
mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
memset(mc, 0, sizeof(*mc));
memcpy(mc->mpc_signature, sig, sizeof(sig));
mc->mpc_length = sizeof(*mc); /* initially just the header */
mc->mpc_spec = 0x04;
mc->mpc_checksum = 0; /* not yet computed */
memcpy(mc->mpc_oem, oem, sizeof(oem));
memcpy(mc->mpc_productid, productid, sizeof(productid));
mc->mpc_oemptr = 0;
mc->mpc_oemsize = 0;
mc->mpc_entry_count = 0; /* No entries yet... */
mc->mpc_lapic = LAPIC_ADDR;
mc->mpe_length = 0;
mc->mpe_checksum = 0;
mc->reserved = 0;
#if 0
smp_write_processor(mc, 0x00, 0x14, CPU_BOOTPROCESSOR | CPU_ENABLED,
0x00000f24, 0x3febfbff);
smp_write_processor(mc, 0x06, 0x14, CPU_ENABLED, 0x00000f24, 0x3febfbff);
smp_write_processor(mc, 0x01, 0x14, CPU_ENABLED, 0x00000f24, 0x3febfbff);
smp_write_processor(mc, 0x07, 0x14, CPU_ENABLED, 0x00000f24, 0x3febfbff);
#else
smp_write_processors(mc, processor_map);
#endif
/*Bus: Bus ID Type*/
smp_write_bus(mc, 0, "PCI ");
smp_write_bus(mc, 1, "PCI ");
smp_write_bus(mc, 2, "PCI ");
smp_write_bus(mc, 3, "PCI ");
smp_write_bus(mc, 4, "PCI ");
smp_write_bus(mc, 5, "ISA ");
/*I/O APICs: APIC ID Version State Address*/
smp_write_ioapic(mc, 2, 0x20, 0xfec00000);
{
struct pci_dev *dev;
uint32_t base;
dev = pci_find_slot(1, PCI_DEVFN(0x1e,0));
if (dev) {
pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &base);
base &= PCI_BASE_ADDRESS_MEM_MASK;
smp_write_ioapic(mc, 3, 0x20, base);
}
dev = pci_find_slot(1, PCI_DEVFN(0x1c,0));
if (dev) {
pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &base);
base &= PCI_BASE_ADDRESS_MEM_MASK;
smp_write_ioapic(mc, 4, 0x20, base);
}
dev = pci_find_slot(4, PCI_DEVFN(0x1e,0));
if (dev) {
pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &base);
base &= PCI_BASE_ADDRESS_MEM_MASK;
smp_write_ioapic(mc, 5, 0x20, base);
}
dev = pci_find_slot(4, PCI_DEVFN(0x1c,0));
if (dev) {
pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &base);
base &= PCI_BASE_ADDRESS_MEM_MASK;
smp_write_ioapic(mc, 8, 0x20, base);
}
}
/*I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#
*/ smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x0, 0x2, 0x0);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x1, 0x2, 0x1);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x0, 0x2, 0x2);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x3, 0x2, 0x3);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x4, 0x2, 0x4);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x75, 0x2, 0x13);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x6, 0x2, 0x6);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x7, 0x2, 0x7);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x8, 0x2, 0x8);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x9, 0x2, 0x9);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x74, 0x2, 0x10);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x0, 0x7d, 0x2, 0x11);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0xc, 0x2, 0xc);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0xd, 0x2, 0xd);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0xe, 0x2, 0xe);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0xf, 0x2, 0xf);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x4, 0xc, 0x2, 0x15);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x4, 0x10, 0x2, 0x14);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x4, 0x14, 0x2, 0x17);
smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, 0x4, 0x18, 0x2, 0x16);
/*Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#*/
smp_write_intsrc(mc, mp_ExtINT, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x0, MP_APIC_ALL, 0x0);
smp_write_intsrc(mc, mp_NMI, MP_IRQ_TRIGGER_EDGE|MP_IRQ_POLARITY_HIGH, 0x5, 0x0, MP_APIC_ALL, 0x1);
/* MP Config Extended Table Entries:
--
System Address Space
bus ID: 0 address type: I/O address
address base: 0x0
address range: 0x10000
--
System Address Space
bus ID: 0 address type: memory address
address base: 0x40000000
address range: 0xbee00000
--
System Address Space
bus ID: 0 address type: memory address
address base: 0xfee01000
address range: 0x11ff000
--
System Address Space
bus ID: 4 address type: memory address
address base: 0xa0000
address range: 0x20000
--
System Address Space
bus ID: 4 address type: memory address
address base: 0xcc000
address range: 0x10000
--
System Address Space
bus ID: 4 address type: memory address
address base: 0xe0000
address range: 0x4000
--
Bus Heirarchy
bus ID: 5 bus info: 0x01 parent bus ID: 0--
Compatibility Bus Address
bus ID: 0 address modifier: add
predefined range: 0x00000000--
Compatibility Bus Address
bus ID: 0 address modifier: add
predefined range: 0x00000001 There is no extension information... */
/* Compute the checksums */
mc->mpe_checksum = smp_compute_checksum(smp_next_mpc_entry(mc), mc->mpe_length);
mc->mpc_checksum = smp_compute_checksum(mc, mc->mpc_length);
printk_debug("Wrote the mp table end at: %p - %p
",
mc, smp_next_mpe_entry(mc));
return smp_next_mpe_entry(mc);
}
unsigned long write_smp_table(unsigned long addr, unsigned long *processor_map)
{
void *v;
v = smp_write_floating_table(addr);
return (unsigned long)smp_write_config_table(v, processor_map);
}

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@ -0,0 +1,49 @@
#include <cpu/p6/mtrr.h>
/* We want to cache memory as efficiently as possible.
*/
#define RAM MTRR_TYPE_WRBACK
/* We can't use Write Combining on a legacy frame buffer because
* it is incompatible with EGA 16 color video modes...
*/
#define FB MTRR_TYPE_UNCACHABLE
/* For areas that are supposed to cover roms it makes no
* sense to cache writes.
*/
#define ROM MTRR_TYPE_WRPROT
unsigned char fixed_mtrr_values[][4] = {
/* MTRRfix64K_00000_MSR, defines memory range from 0KB to 512 KB, each byte cover 64KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
/* MTRRfix16K_80000_MSR, defines memory range from 512KB to 640KB, each byte cover 16KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
/* MTRRfix16K_A0000_MSR, defines memory range from A0000 to C0000, each byte cover 16KB area */
{FB, FB, FB, FB}, {FB, FB, FB, FB},
/* MTRRfix4K_C0000_MSR, defines memory range from C0000 to C8000, each byte cover 4KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
/* MTRRfix4K_C8000_MSR, defines memory range from C8000 to D0000, each byte cover 4KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
/* MTRRfix4K_D0000_MSR, defines memory range from D0000 to D8000, each byte cover 4KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
/* MTRRfix4K_D8000_MSR, defines memory range from D8000 to E0000, each byte cover 4KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
/* MTRRfix4K_E0000_MSR, defines memory range from E0000 to E8000, each byte cover 4KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
/* MTRRfix4K_E8000_MSR, defines memory range from E8000 to F0000, each byte cover 4KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
/* MTRRfix4K_F0000_MSR, defines memory range from F0000 to F8000, each byte cover 4KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
/* MTRRfix4K_F8000_MSR, defines memory range from F8000 to 100000, each byte cover 4KB area */
{RAM, RAM, RAM, RAM}, {RAM, RAM, RAM, RAM},
};

View file

@ -0,0 +1,458 @@
jmp preserial
#define S0_WAIT() \
movw $0x3fd, %dx ;\
9: inb %dx, %al ;\
test $0x40, %al ;\
je 9b
#define S0_EMIT(char) \
9: movw $0x3fd, %dx ;\
inb %dx, %al ;\
test $0x20, %al ;\
je 9b ;\
movb $char,%al ;\
movw $0x3f8, %dx ;\
outb %al, %dx
#define __CONSOLE_INLINE_TX_HEX8(byte) \
movb byte, %al ; \
shr $4, %al ; \
add $'0', %al ; \
cmp $'9', %al ; \
jle 9f ; \
add $39, %al ; \
9: ; \
movw $0x3f8, %dx ;\
outb %al, %dx ;\
10: movw $0x3fd, %dx ;\
inb %dx, %al ;\
test $0x20, %al ;\
je 10b ;\
movw $0x3f8, %dx ;\
mov byte, %al ; \
and $0x0f, %al ; \
add $'0', %al ; \
cmp $'9', %al ; \
jle 9f ; \
add $39, %al ; \
9: ; \
movw $0x3f8, %dx ;\
outb %al, %dx
southbridge_table_start:
.byte 0x01, 0x04, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x00 # 40
.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x04, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00 # 50
.byte 0x0a, 0x0b, 0x80, 0x09, 0xd1, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00 # 60
.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 # 70
.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 # 80
.byte 0xff, 0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 # 90
.byte 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 # a0
.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 # b0
.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 # c0
.byte 0x86, 0x39, 0x00, 0x00, 0x02, 0x0f, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 # d0
.byte 0x10, 0x00, 0x00, 0xc0, 0x00, 0xa0, 0x0f, 0x1c, 0x33, 0x22, 0x11, 0x00, 0x00, 0x00, 0x67, 0x45 # e0
.byte 0x0f, 0x00, 0x60, 0x84, 0x00, 0x00, 0x00, 0x00, 0x47, 0x0f, 0x0e, 0x00, 0x00, 0x00, 0x81, 0x00 # f0
southbridge_end:
.globl preserial
preserial:
.code32
cli
#call off the dog
movw $0x461, %dx
movb $0x20, %al
outb %al, %dx
dec %dx
movb $0x01, %al
outb %al, %dx
movl $0x8000f8d4, %eax
movw $0xcf8, %dx
outl %eax, %dx
movw $0xcfc, %dx
movb $0x2, %al
# movb $0x0, %al # 0x02 here to disable watchdog function
outb %al, %dx
# movw $0x468, %dx
# movw $0x800, %ax
# outw %ax, %dx
#
#turn on LPC I/o access to superio
movl $0x8000f8e6, %eax
mov $0xcf8, %dx
outl %eax, %dx
mov $0xcfc, %dx
movw $0x1c0f, %ax
outw %ax, %dx
#assign i/o ranges for serial I/O
movl $0x8000f8e0, %eax
mov $0xcf8, %dx
outl %eax, %dx
mov $0xcfc, %dx
mov $0x10, %al
outb %al, %dx
#attempt to get Natsemi superio to ID itself
#movw $0x2e, %dx
#movb $0x20, %al
#outb %al, %dx
#inc %dx
#inb %dx, %al
#cmp $0x0ee, %al
#je corrupt_cmos
#OK, now, lets turn serial on!
jmp noreset
#first, reset the serial chip to defaults
movw $0x2e, %dx
movb $0x21, %al
outb %al, %dx
inc %dx
movb $0x13, %al
outb %al, %dx
noreset:
movw $0x2e, %dx
movb $0x21, %al
outb %al, %dx
inc %dx
movb $0x19, %al
outb %al, %dx
dec %dx
movb $0x22, %al
outb %al, %dx
inc %dx
outb %al, %dx # YES! 22->22
dec %dx
movb $0x23, %al
outb %al, %dx
inc %dx
movb $0x72, %al
outb %al, %dx
dec %dx
movb $0x24, %al
outb %al, %dx
inc %dx
movb $0x26, %al
outb %al, %dx
dec %dx
movb $0x2a, %al
outb %al, %dx
inc %dx
movb $0x0b, %al
outb %al, %dx
#enable serial
dec %dx
movb $0x07, %al
outb %al, %dx
inc %dx
movb $0x03, %al
outb %al, %dx
dec %dx
movb $0x30, %al
outb %al, %dx
inc %dx
movb $0x01, %al
outb %al, %dx
#O.K. now lets try to set up serial part way, then confirm that its active
#turn off serial interrupts, we have no vectors
movw $0x3f9, %dx
movb $0x0, %al
outb %al, %dx
#set divisor to 115200
movw $0x3fb, %dx
movb $0x83, %al
outb %al, %dx
movw $0x3f8, %dx
movb $0x01, %al
outb %al, %dx
inc %dx
movb $0x00, %al
outb %al, %dx
#set n81
movw $0x3fb, %dx
movb $0x03, %al
outb %al, %dx
#FIFO setup $0xc7 -> 0x3fa
movw $0x3fa, %dx
movb $0xc7, %al
out %al, %dx
#set DTR, RTS, OUT2 (whatever that is)
movw $0x3fc, %dx
movb $0xb, %al
outb %al, %dx
jmp preserial_out
#set null descriptor to all but CS
#movw $0x0, %ax
#movw %ax, %ds
#movw %ax, %es
#movw %ax, %fs
#movw %ax, %gs
S0_EMIT('C')
S0_EMIT('S')
S0_EMIT(':')
movw %cs, %ax
movw %ax, %bx
__CONSOLE_INLINE_TX_HEX8(%bh)
__CONSOLE_INLINE_TX_HEX8(%bl)
S0_EMIT('\r')
S0_EMIT('\n')
S0_EMIT('D')
S0_EMIT('S')
S0_EMIT(':')
S0_WAIT()
movw %ds, %ax
movw %ax, %bx
__CONSOLE_INLINE_TX_HEX8(%bh)
__CONSOLE_INLINE_TX_HEX8(%bl)
S0_EMIT('\r')
S0_EMIT('\n')
S0_EMIT('C')
S0_EMIT('R')
S0_EMIT('0')
S0_EMIT(':')
S0_WAIT()
movl %cr0, %eax
movl %eax, %ebx
movl %eax, %ecx
shr $0x16, %ebx
__CONSOLE_INLINE_TX_HEX8(%bh)
__CONSOLE_INLINE_TX_HEX8(%bl)
movw %cx,%bx
__CONSOLE_INLINE_TX_HEX8(%bh)
__CONSOLE_INLINE_TX_HEX8(%bl)
S0_EMIT('\r')
S0_EMIT('\n')
movl $0x10002, %esi
#sgdt %cs:(%esi)
sgdt (%esi)
S0_EMIT('G')
S0_EMIT('D')
S0_EMIT('T')
S0_EMIT(':')
movw (0x10002), %cx
movl (0x10004), %ebx
out1:
__CONSOLE_INLINE_TX_HEX8( %cs:(%ebx) )
inc %bx
dec %cx
jnz out1
#movw $0x4, %cx
#loop3:
#__CONSOLE_INLINE_TX_HEX8(%bl)
#shr $0x08, %ebx
#dec %cx
#jnz loop3
#just a test, emit a PYRO
S0_EMIT('P')
jmp dolgdt
.align 4
dolgdt:
lgdt %cs:gdtptr
S0_EMIT('Y')
ljmp $0x10,$csload
csload:
S0_EMIT('R')
movw $0x18, %ax
movw %ax, %ds
movw %ax, %es
movw %ax, %fs
movw %ax, %gs
movw %ax, %ss
S0_EMIT('O')
S0_EMIT('\r')
S0_EMIT('\n')
#movb $0x50, %al
#movw $0x3f8, %dx
#outb %al, %dx
#movb $0x59, %al
#outb %al, %dx
#movb $0x52, %al
#outb %al, %dx
#movb $0x4f, %al
#outb %al, %dx
#movb $0x0d, %al
#outb %al, %dx
#movb $0x0a, %al
#outb %al, %dx
#indicate we did it by clearing DTR
movw $0x3fc, %dx
movb $0x0a, %al
outb %al, %dx
jmp preserial_out
movl $southbridge_table_start, %esi
movl $(southbridge_end - southbridge_table_start), %ecx
shrl $0x02, %ecx
movl $0x8000f840, %eax
movl %eax, %ebx
next_dword:
movw $0xcf8, %dx
movl %ebx, %eax
outl %eax, %dx
inc %eax
inc %eax
inc %eax
inc %eax
movl %eax, %ebx
lodsl (%esi), %eax
movw $0xcfc, %dx
outl %eax, %dx
loopnz next_dword
jmp preserial_out
movl $0x8000f8e0, %eax
mov $0xcf8, %dx
outl %eax, %dx
mov $0xcfc, %dx
mov $0x10, %al
outb %al, %dx
jmp preserial_out
corrupt_cmos:
mov $0x72, %dx
mov $0x50, %al
outb %al, %dx
inc %dx
mov $0x42, %al
outb %al, %dx
dec %dx
mov $0x51, %al
outb %al, %dx
inc %dx
mov $0xbe, %al
outb %al, %dx
#now, strobe HD light a few times to prove we made it here
mov $30, %bx
mov $0x480, %dx
again:
mov $0xa7, %al
outb %al, %dx
movl $0xfffffff,%ecx
loop1:
dec %ecx
jnz loop1
mov $0xa6, %al
outb %al, %dx
movl $0xfffffff,%ecx
loop2:
dec %ecx
jnz loop2
dec %bx
jnz again
preserial_out:
S0_EMIT('A')
S0_EMIT('P')
S0_EMIT('I')
S0_EMIT('C')
S0_EMIT('I')
S0_EMIT('D')
S0_EMIT(':')
movl $APIC_DEFAULT_BASE, %edi
movl APIC_ID(%edi), %eax
shrl $24, %eax
__CONSOLE_INLINE_TX_HEX8(%al)
S0_EMIT('\r')
S0_EMIT('\n')
#very temporary, set TOLM to 1 Gig. This should be enumerated or otherwise tested!
movl $0x800000c4, %eax
movw $0xcf8, %dx
outl %eax, %dx
movw $0x4000, %ax
movw $0xcfc, %dx
outw %ax, %dx
#set PCI dev 0:0.0.e0 < 0x1e
movl $0x800000e0, %eax
movw $0xcf8, %dx
outl %eax, %dx
movb $0x1e, %al
movw $0xcfc, %dx
outb %al, %dx
jmp console0

View file

@ -0,0 +1,10 @@
#mainboardinit cpu/i786/enable_sse.inc
mainboardinit arch/i386/lib/cpu_reset.inc
mainboardinit ram/spotcheck.inc
mainboardinit northbridge/intel/E7501/raminit.inc
mainboardinit northbridge/intel/E7501/sdram_enable.inc
mainboardinit sdram/generic_sdram.inc
#mainboardinit cpu/i786/disable_sse.inc
mainboardinit sdram/generic_cache_linuxbios.inc
object northbridge.o

View file

@ -0,0 +1,103 @@
#include <mem.h>
#include <pci.h>
#include <arch/io.h>
#include <part/sizeram.h>
#include <printk.h>
#include <pc80/mc146818rtc.h>
struct mem_range *sizeram(void)
{
static struct mem_range mem[4];
/* the units of tolm are 64 KB */
/* the units of drb16 are 64 MB */
uint16_t tolm, remapbase, remaplimit, drb16;
uint16_t tolm_r, remapbase_r, remaplimit_r;
uint8_t drb;
int remap_high;
/* Calculate and report the top of low memory and
* any remapping.
*/
/* Test if the remap memory high option is set */
remap_high = 0;
if(get_option(&remap_high, "remap_memory_high")){
remap_high = 0;
}
printk_debug("remap_high is %d\n", remap_high);
/* get out the value of the highest DRB. This tells the end of
* physical memory. The units are ticks of 64 MB i.e. 1 means
* 64 MB.
*/
pcibios_read_config_byte(0, 0, 0x67, &drb);
drb16 = (uint16_t)drb;
if(remap_high && (drb16 > 0x08)) {
/* We only come here if we have at least 512MB of memory,
* so it is safe to hard code tolm.
* 0x2000 means 512MB
*/
tolm = 0x2000;
/* i.e 0x40 * 0x40 is 0x1000 which is 4 GB */
if(drb16 > 0x0040) {
/* There is more than 4GB of memory put
* the remap window at the end of ram.
*/
remapbase = drb16;
remaplimit = remapbase + 0x38;
}
else {
remapbase = 0x0040;
remaplimit = remapbase + (drb16-8);
}
}
else {
tolm = (uint16_t)((pci_memory_base >> 16)&0x0f800);
if((tolm>>8) >= (drb16<<2)) {
tolm = (drb16<<10);
remapbase = 0x3ff;
remaplimit = 0;
}
else {
remapbase = drb16;
remaplimit = remapbase + ((0x0040-(tolm>>10))-1);
}
}
/* Write the ram configruation registers,
* preserving the reserved bits.
*/
pcibios_read_config_word(0, 0, 0xc4, &tolm_r);
tolm |= (tolm_r & 0x7ff);
pcibios_write_config_word(0, 0, 0xc4, tolm);
pcibios_read_config_word(0, 0, 0xc6, &remapbase_r);
remapbase |= (remapbase_r & 0xfc00);
pcibios_write_config_word(0, 0, 0xc6, remapbase);
pcibios_read_config_word(0, 0, 0xc8, &remaplimit_r);
remaplimit |= (remaplimit_r & 0xfc00);
pcibios_write_config_word(0, 0, 0xc8, remaplimit);
#if 0
printk_debug("mem info tolm = %x, drb = %x, pci_memory_base = %x, remap = %x-%x\n",tolm,drb,pci_memory_base,remapbase,remaplimit);
#endif
mem[0].basek = 0;
mem[0].sizek = 640;
mem[1].basek = 768;
/* Convert size in 64K bytes to size in K bytes */
mem[1].sizek = (tolm << 6) - mem[1].basek;
mem[2].basek = 0;
mem[2].sizek = 0;
if ((drb << 16) > (tolm << 6)) {
/* We don't need to consider the remap window
* here because we put it immediately after the
* rest of ram.
* All we must do is calculate the amount
* of unused memory and report it at 4GB.
*/
mem[2].basek = 4096*1024;
mem[2].sizek = (drb << 16) - (tolm << 6);
}
mem[3].basek = 0;
mem[3].sizek = 0;
return mem;
}

File diff suppressed because it is too large Load diff

View file

@ -0,0 +1,10 @@
#define MCH_DRC 0x7c
#define DRC_DONE (1 << 29)
/* If I have already booted once skip a bunch of initialization */
/* To see if I have already booted I check to see if memory
* has been enabled.
*/
movl $MCH_DRC, %eax
PCI_READ_CONFIG_DWORD
testl $DRC_DONE, %eax
setnz %al

View file

@ -0,0 +1,132 @@
jmp sdram_enable_out
#ifndef RAM_NOP
#error RAM_NOP not defined
#endif
#ifndef RAM_PRECHARGE
#error RAM_PRECHARGE not defined
#endif
#ifndef RAM_EMRS
#error RAM_EMRS not defined
#endif
#ifndef RAM_MRS
#error RAM_MRS not defined
#endif
#ifndef RAM_CBR
#error RAM_CBR not defined
#endif
#ifndef RAM_NORMAL
#error RAM_NORMAL not defined
#endif
#if ASM_CONSOLE_LOGLEVEL > BIOS_DEBUG
ram_enable_1: .string "Ram Enable 1\r\n"
ram_enable_2: .string "Ram Enable 2\r\n"
ram_enable_3: .string "Ram Enable 3\r\n"
ram_enable_4: .string "Ram Enable 4\r\n"
ram_enable_5: .string "Ram Enable 5\r\n"
ram_enable_6: .string "Ram Enable 6\r\n"
ram_enable_7: .string "Ram Enable 7\r\n"
ram_enable_8: .string "Ram Enable 8\r\n"
ram_enable_9: .string "Ram Enable 9\r\n"
ram_enable_10: .string "Ram Enable 10\r\n"
ram_enable_11: .string "Ram Enable 11\r\n"
#endif
/* Estimate that SLOW_DOWN_IO takes about 50&76us*/
/* delay for 200us */
#define DO_DELAY \
movl $16, %edi ; \
1: SLOW_DOWN_IO ; \
decl %edi ; \
jnz 1b
#define EXTRA_DELAY DO_DELAY
enable_sdram:
/* 1 & 2 Power up and start clocks */
CONSOLE_DEBUG_TX_STRING($ram_enable_1)
CONSOLE_DEBUG_TX_STRING($ram_enable_2)
/* A 200us delay is needed */
DO_DELAY
EXTRA_DELAY
/* 3. Apply NOP */
CONSOLE_DEBUG_TX_STRING($ram_enable_3)
RAM_NOP()
EXTRA_DELAY
/* 4 Precharge all */
CONSOLE_DEBUG_TX_STRING($ram_enable_4)
RAM_PRECHARGE()
EXTRA_DELAY
/* wait until the all banks idle state... */
/* 5. Issue EMRS to enable DLL */
CONSOLE_DEBUG_TX_STRING($ram_enable_5)
RAM_EMRS()
EXTRA_DELAY
/* 6. Reset DLL */
CONSOLE_DEBUG_TX_STRING($ram_enable_6)
RAM_MRS(1)
EXTRA_DELAY
/* Ensure a 200us delay between the DLL reset in step 6 and the final
* mode register set in step 9.
* Infineon needs this before any other command is sent to the ram.
*/
DO_DELAY
EXTRA_DELAY
/* 7 Precharge all */
CONSOLE_DEBUG_TX_STRING($ram_enable_7)
RAM_PRECHARGE()
EXTRA_DELAY
/* 8 Now we need 2 AUTO REFRESH / CBR cycles to be performed */
CONSOLE_DEBUG_TX_STRING($ram_enable_8)
RAM_CBR()
EXTRA_DELAY
RAM_CBR()
EXTRA_DELAY
/* And for good luck 6 more CBRs */
RAM_CBR()
EXTRA_DELAY
RAM_CBR()
EXTRA_DELAY
RAM_CBR()
EXTRA_DELAY
RAM_CBR()
EXTRA_DELAY
RAM_CBR()
EXTRA_DELAY
RAM_CBR()
EXTRA_DELAY
/* 9 mode register set */
CONSOLE_DEBUG_TX_STRING($ram_enable_9)
RAM_MRS(0)
EXTRA_DELAY
/* 10 DDR Receive FIFO RE-Sync */
CONSOLE_DEBUG_TX_STRING($ram_enable_10)
RAM_RESET_DDR_PTR()
EXTRA_DELAY
/* 11 normal operation */
CONSOLE_DEBUG_TX_STRING($ram_enable_11)
RAM_NORMAL()
RET_LABEL(enable_sdram)
sdram_enable_out:

View file

@ -12,6 +12,10 @@
#ifndef CONFIG_MAX_SPOTCHECK_ERRORS
#define CONFIG_MAX_SPOTCHECK_ERRORS 20
#endif
# debugging SMJ
#define NO_HLT
spot_test: .string " Spot checking: "
spot_error: .string "Blatant memory errors found.\r\n"
@ -79,15 +83,19 @@ spot_check:
incl %esi
cmpl $CONFIG_MAX_SPOTCHECK_ERRORS, %esi
jbe 3b
#ifndef NO_HLT
5:
CONSOLE_INFO_TX_STRING($spot_error)
intel_chip_post_macro(0xf1)
jmp .Lhlt
#endif
6:
#ifndef NO_HLT
/* If any memory errors occured hlt */
testl %esi, %esi
jnz 5b
#endif
mov %ebp, %esp
RETSP