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Revision: linuxbios@linuxbios.org--devel/freebios--devel--2.0--patch-60 

Creator:  Li-Ta Lo <ollie@lanl.gov>

More Via EPIA 

more via epia stuff, including the trival but fatal bug in auto.c


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1978 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
arch import user (historical) 2005-07-06 18:17:33 +00:00
parent f642a4795a
commit 80e3d96d0a
15 changed files with 758 additions and 732 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

117
src/mainboard/via/epia/Config.lb
View File

@ -125,61 +125,64 @@ dir /pc80
config chip.h
chip northbridge/via/vt8601
device pci_domain 0 on
device pci 0.0 on
chip southbridge/via/vt8231
register "enable_usb" = "0"
register "enable_native_ide" = "0"
register "enable_com_ports" = "1"
register "enable_keyboard" = "0"
register "enable_nvram" = "1"
device pci 11.0 on # Southbridge
device pci 11.1 on end # Ide
device pci 11.2 off end # Usb
device pci 11.3 off end # Usb
device pci 11.4 off end # ACPI
device pci 11.5 off end # Audio
device pci 11.6 on # Com
chip superio/winbond/w83627hf
device pnp 2e.0 on # Floppy
io 0x60 = 0x3f0
irq 0x70 = 6
drq 0x74 = 2
end
device pnp 2e.1 off # Parallel Port
io 0x60 = 0x378
irq 0x70 = 7
end
device pnp 2e.2 on # Com1
io 0x60 = 0x3f8
irq 0x70 = 4
end
device pnp 2e.3 off # Com2
io 0x60 = 0x2f8
irq 0x70 = 3
end
device pnp 2e.5 on # Keyboard
io 0x60 = 0x60
io 0x62 = 0x64
irq 0x70 = 1
irq 0x72 = 12
end
device pnp 2e.6 off end # CIR
device pnp 2e.7 off end # GAME_MIDI_GIPO1
device pnp 2e.8 off end # GPIO2
device pnp 2e.9 off end # GPIO3
device pnp 2e.a off end # ACPI
device pnp 2e.b on # HW Monitor
io 0x60 = 0x290
end
register "com1" = "{1}"
end
end
device pci 12.0 on end # Ethernet
end
end
end
end
chip cpu/via/model_centaur
end
device pci_domain 0 on
device pci 0.0 on end # Northbridge
device pci 0.1 on # AGP bridge
# chip drivers/pci/onboard # Integrated VGA
# device pci 0.0 on end
# register "rom_adress" = "0xfff80000"
# end
end
chip southbridge/via/vt8231
register "enable_native_ide" = "0"
register "enable_com_ports" = "1"
register "enable_keyboard" = "0"
device pci 11.0 on # Southbrdge
chip superio/winbond/w83627hf
device pnp 2e.0 on # Floppy
io 0x60 = 0x3f0
irq 0x70 = 6
drq 0x74 = 2
end
device pnp 2e.1 off # Parallel Port
io 0x60 = 0x378
irq 0x70 = 7
end
device pnp 2e.2 on # Com1
io 0x60 = 0x3f8
irq 0x70 = 4
end
device pnp 2e.3 off # Com2
io 0x60 = 0x2f8
irq 0x70 = 3
end
device pnp 2e.5 on # Keyboard
io 0x60 = 0x60
io 0x62 = 0x64
irq 0x70 = 1
irq 0x72 = 12
end
register "com1" = "{1}"
end
device pnp 2e.6 off end # CIR
device pnp 2e.7 off end # GAME_MIDI_GIPO1
device pnp 2e.8 off end # GPIO2
device pnp 2e.9 off end # GPIO3
device pnp 2e.a off end # ACPI
device pnp 2e.b on # HW Monitor
io 0x60 = 0x290
end
end
device pci 11.1 on end # Ide
device pci 11.2 off end # Usb port 0-1
device pci 11.3 off end # Usb port 2-3
device pci 11.4 off end # ACPI
device pci 11.5 off end # AC97 Audio
device pci 11.6 on end # AC97 Modem
device pci 12.0 on end # Ethernet
end
end
chip cpu/via/model_centaur
end
end

19
src/mainboard/via/epia/Options.lb
View File

@ -1,3 +1,10 @@
uses MAXIMUM_CONSOLE_LOGLEVEL
uses DEFAULT_CONSOLE_LOGLEVEL
uses CONFIG_CONSOLE_SERIAL8250
uses TTYS0_BAUD
uses TTYS0_BASE
uses TTYS0_LCS
uses CONFIG_CHIP_NAME
uses HAVE_MP_TABLE
uses HAVE_PIRQ_TABLE
uses USE_FALLBACK_IMAGE
@ -40,6 +47,18 @@ uses MAXIMUM_CONSOLE_LOGLEVEL
uses DEFAULT_CONSOLE_LOGLEVEL
uses MAXIMUM_CONSOLE_LOGLEVEL
default CONFIG_CONSOLE_SERIAL8250=1
## Select the serial console baud rate
default TTYS0_BAUD=19200
# Select the serial console base port
default TTYS0_BASE=0x3f8
# Select the serial protocol
# This defaults to 8 data bits, 1 stop bit, and no parity
default TTYS0_LCS=0x3
default CONFIG_CHIP_NAME=1
## ROM_SIZE is the size of boot ROM that this board will use.
default ROM_SIZE = 256*1024

24
src/mainboard/via/epia/auto.c
View File

@ -2,9 +2,6 @@
#include <stdint.h>
#include <device/pci_def.h>
#if 0
#include <cpu/x86/lapic.h>
#endif
#include <arch/io.h>
#include <device/pnp_def.h>
#include <arch/romcc_io.h>
@ -21,7 +18,7 @@
void udelay(int usecs)
{
int i;
for(i = 0; i < usecs; i++)
for (i = 0; i < usecs; i++)
outb(i&0xff, 0x80);
}
@ -30,18 +27,8 @@ void udelay(int usecs)
#include "debug.c"
#include "southbridge/via/vt8231/vt8231_early_smbus.c"
#include "southbridge/via/vt8231/vt8231_early_serial.c"
static void memreset_setup(void)
{
}
/*
static void memreset(int controllers, const struct mem_controller *ctrl)
{
}
*/
static inline int spd_read_byte(unsigned device, unsigned address)
{
unsigned char c;
@ -49,8 +36,6 @@ static inline int spd_read_byte(unsigned device, unsigned address)
return c;
}
#include "northbridge/via/vt8601/raminit.c"
/*
#include "sdram/generic_sdram.c"
@ -66,6 +51,7 @@ static void enable_mainboard_devices(void)
if (dev == PCI_DEV_INVALID) {
die("Southbridge not found!!!\n");
}
pci_write_config8(dev, 0x50, 7);
pci_write_config8(dev, 0x51, 0xff);
#if 0
@ -87,9 +73,9 @@ static void enable_mainboard_devices(void)
static void enable_shadow_ram(void)
{
device_t dev = 0; /* no need to look up 0:0.0 */
device_t dev = 0;
unsigned char shadowreg;
/* dev 0 for southbridge */
shadowreg = pci_read_config8(dev, 0x63);
/* 0xf0000-0xfffff */
shadowreg |= 0x30;
@ -113,8 +99,8 @@ static void main(unsigned long bist)
enable_mainboard_devices();
enable_smbus();
enable_shadow_ram();
/*
memreset_setup();
this is way more generic than we need.
sdram_initialize(sizeof(cpu)/sizeof(cpu[0]), cpu);
*/

4
src/northbridge/via/vt8601/northbridge.c
View File

@ -29,8 +29,6 @@ static void northbridge_init(device_t dev)
pci_write_config8(dev, 0x76, 0x52);
}
static struct device_operations northbridge_operations = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
@ -46,8 +44,6 @@ static struct pci_driver northbridge_driver __pci_driver = {
.device = 0x0601, /* 0x8601 is the AGP bridge? */
};
#define BRIDGE_IO_MASK (IORESOURCE_IO | IORESOURCE_MEM)
static void pci_domain_read_resources(device_t dev)

209
src/northbridge/via/vt8601/raminit.c
View File

@ -47,32 +47,30 @@ it with the version available from LANL.
#define DIMM_CL2 0
#endif
void dimms_read(unsigned long x)
void dimms_read(unsigned long x)
{
uint8_t c;
unsigned long eax;
unsigned long eax;
volatile unsigned long y;
eax = x;
for(c = 0; c < 6; c++) {
y = * (volatile unsigned long *) eax;
eax = x;
for (c = 0; c < 6; c++) {
y = *(volatile unsigned long *) eax;
eax += 0x10000000;
}
}
void dimms_write(int x)
void dimms_write(int x)
{
uint8_t c;
unsigned long eax = x;
for(c = 0; c < 6; c++) {
for (c = 0; c < 6; c++) {
*(volatile unsigned long *) eax = 0;
eax += 0x10000000;
}
}
#ifdef DEBUG_SETNORTHB
void setnorthb(device_t north, uint8_t reg, uint8_t val)
void setnorthb(device_t north, uint8_t reg, uint8_t val)
{
print_debug("setnorth: reg ");
print_debug_hex8(reg);
@ -85,108 +83,108 @@ void setnorthb(device_t north, uint8_t reg, uint8_t val)
#define setnorthb pci_write_config8
#endif
void
dumpnorth(device_t north)
void dumpnorth(device_t north)
{
unsigned int r, c;
for(r = 0; ; r += 16) {
for (r = 0;; r += 16) {
print_debug_hex8(r);
print_debug(":");
for(c = 0; c < 16; c++) {
print_debug_hex8(pci_read_config8(north, r+c));
for (c = 0; c < 16; c++) {
print_debug_hex8(pci_read_config8(north, r + c));
print_debug(" ");
}
print_debug("\r\n");
if (r >= 240)
break;
}
}
}
static void sdram_set_registers(const struct mem_controller *ctrl)
static void sdram_set_registers(const struct mem_controller *ctrl)
{
device_t north = (device_t) 0;
device_t north = (device_t) PCI_DEV(0, 0, 0);
uint8_t c, r;
print_err("vt8601 init starting\r\n");
north = pci_locate_device(PCI_ID(0x1106, 0x8601), 0);
north = 0;
print_debug_hex32(north);
print_debug(" is the north\n");
print_debug_hex16(pci_read_config16(north, 0));
print_debug(" ");
print_debug_hex16(pci_read_config16(north, 2));
print_debug("\r\n");
/* All we are doing now is setting initial known-good values that will
* be revised later as we read SPD
*/
*/
// memory clk enable. We are not using ECC
pci_write_config8(north,0x78, 0x01);
pci_write_config8(north, 0x78, 0x01);
print_debug_hex8(pci_read_config8(north, 0x78));
// dram control, see the book.
#if DIMM_PC133
pci_write_config8(north,0x68, 0x52);
pci_write_config8(north, 0x68, 0x52);
#else
pci_write_config8(north,0x68, 0x42);
pci_write_config8(north, 0x68, 0x42);
#endif
// dram control, see the book.
pci_write_config8(north,0x6B, 0x0c);
pci_write_config8(north, 0x6B, 0x0c);
// Initial setting, 256MB in each bank, will be rewritten later.
pci_write_config8(north,0x5A, 0x20);
pci_write_config8(north, 0x5A, 0x20);
print_debug_hex8(pci_read_config8(north, 0x5a));
pci_write_config8(north,0x5B, 0x40);
pci_write_config8(north,0x5C, 0x60);
pci_write_config8(north,0x5D, 0x80);
pci_write_config8(north,0x5E, 0xA0);
pci_write_config8(north,0x5F, 0xC0);
pci_write_config8(north, 0x5B, 0x40);
pci_write_config8(north, 0x5C, 0x60);
pci_write_config8(north, 0x5D, 0x80);
pci_write_config8(north, 0x5E, 0xA0);
pci_write_config8(north, 0x5F, 0xC0);
// It seems we have to take care of these 2 registers as if
// they are bank 6 and 7.
pci_write_config8(north,0x56, 0xC0);
pci_write_config8(north,0x57, 0xC0);
pci_write_config8(north, 0x56, 0xC0);
pci_write_config8(north, 0x57, 0xC0);
// SDRAM in all banks
pci_write_config8(north,0x60, 0x3F);
pci_write_config8(north, 0x60, 0x3F);
// DRAM timing. I'm suspicious of this
// This is for all banks, 64 is 0,1. 65 is 2,3. 66 is 4,5.
// ras precharge 4T, RAS pulse 5T
// cas2 is 0xd6, cas3 is 0xe6
// we're also backing off write pulse width to 2T, so result is 0xee
#if DIMM_CL2
pci_write_config8(north,0x64, 0xd4);
pci_write_config8(north,0x65, 0xd4);
pci_write_config8(north,0x66, 0xd4);
#else // CL=3
pci_write_config8(north,0x64, 0xe4);
pci_write_config8(north,0x65, 0xe4);
pci_write_config8(north,0x66, 0xe4);
pci_write_config8(north, 0x64, 0xd4);
pci_write_config8(north, 0x65, 0xd4);
pci_write_config8(north, 0x66, 0xd4);
#else // CL=3
pci_write_config8(north, 0x64, 0xe4);
pci_write_config8(north, 0x65, 0xe4);
pci_write_config8(north, 0x66, 0xe4);
#endif
// dram frequency select.
// enable 4K pages for 64M dram.
#if DIMM_PC133
pci_write_config8(north,0x69, 0x3c);
pci_write_config8(north, 0x69, 0x3c);
#else
pci_write_config8(north,0x69, 0xac);
pci_write_config8(north, 0x69, 0xac);
#endif
/* IMPORTANT -- disable refresh counter */
// refresh counter, disabled.
pci_write_config8(north,0x6A, 0x00);
pci_write_config8(north, 0x6A, 0x00);
// clkenable configuration. kevinh FIXME - add precharge
pci_write_config8(north,0x6C, 0x00);
pci_write_config8(north, 0x6C, 0x00);
// dram read latch delay of 1 ns, MD drive 8 mA,
// high drive strength on MA[2: 13], we#, cas#, ras#
// high drive strength on MA[2: 13], we#, cas#, ras#
// As per Cindy Lee, set to 0x37, not 0x57
pci_write_config8(north,0x6D, 0x7f);
pci_write_config8(north, 0x6D, 0x7f);
}
/* slot is the dram slot. Return size of side0 in lower 16-bit,
* side1 in upper 16-bit, in units of 8MB */
static unsigned long
spd_module_size(unsigned char slot)
{
static unsigned long spd_module_size(unsigned char slot)
{
/* for all the DRAMS, see if they are there and get the size of each
* module. This is just a very early first cut at sizing.
*/
@ -195,21 +193,24 @@ spd_module_size(unsigned char slot)
unsigned int value = 0;
/* unsigned int module = ((0x50 + slot) << 1) + 1; */
unsigned int module = 0x50 + slot;
/* is the module there? if byte 2 is not 4, then we'll assume it
* is useless.
*/
print_info("Slot ");
print_info_hex8(slot);
print_info("Slot ");
print_info_hex8(slot);
if (smbus_read_byte(module, 2) != 4) {
print_info(" is empty\r\n");
return 0;
}
print_info(" is SDRAM ");
banks = smbus_read_byte(module, 17);
/* we're going to assume symmetric banks. Sorry. */
cols = smbus_read_byte(module, 4) & 0xf;
rows = smbus_read_byte(module, 3) & 0xf;
cols = smbus_read_byte(module, 4) & 0xf;
rows = smbus_read_byte(module, 3) & 0xf;
/* grand total. You have rows+cols addressing, * times of banks, times
* width of data in bytes */
/* Width is assumed to be 64 bits == 8 bytes */
@ -229,10 +230,8 @@ spd_module_size(unsigned char slot)
}
static int
spd_num_chips(unsigned char slot)
{
/* unsigned int module = ((0x50 + slot) << 1) + 1; */
static int spd_num_chips(unsigned char slot)
{
unsigned int module = 0x50 + slot;
unsigned int width;
@ -249,20 +248,21 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl)
unsigned char timing = 0xe4;
/* read Trp */
val = smbus_read_byte(0x50, 27);
if (val < 2*T133)
if (val < 2 * T133)
Trp = 1;
val = smbus_read_byte(0x50, 30);
if (val < 5*T133)
if (val < 5 * T133)
Tras = 0;
val = smbus_read_byte(0x50, 18);
if (val < 8)
casl = 1;
if (val < 4)
casl = 0;
val = (Trp << 7) | (Tras << 6) | (casl << 4) | 4;
print_debug_hex8(val); print_debug(" is the computed timing\n");
print_debug_hex8(val);
print_debug(" is the computed timing\n");
/* don't set it. Experience shows that this screwy chipset should just
* be run with the most conservative timing.
* pci_write_config8(0, 0x64, val);
@ -271,23 +271,23 @@ static void sdram_set_spd_registers(const struct mem_controller *ctrl)
static void set_ma_mapping(device_t north, int slot, int type)
{
unsigned char reg, val;
int shift;
unsigned char reg, val;
int shift;
reg = 0x58 + slot/2;
if (slot%2 >= 1)
shift = 0;
else
shift = 4;
reg = 0x58 + slot / 2;
if (slot % 2 >= 1)
shift = 0;
else
shift = 4;
val = pci_read_config8(north, reg);
val &= ~(0xf << shift);
val |= type << shift;
pci_write_config8(north, reg, val);
val = pci_read_config8(north, reg);
val &= ~(0xf << shift);
val |= type << shift;
pci_write_config8(north, reg, val);
}
static void sdram_enable(int controllers, const struct mem_controller *ctrl)
static void sdram_enable(int controllers, const struct mem_controller *ctrl)
{
unsigned char i;
static const uint8_t ramregs[] = {
@ -295,29 +295,30 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
};
device_t north = 0;
uint32_t size, base, slot, ma;
/* begin to initialize*/
/* begin to initialize */
// I forget why we need this, but we do
dimms_write(0xa55a5aa5);
/* set NOP*/
pci_write_config8(north,0x6C, 0x01);
/* set NOP */
pci_write_config8(north, 0x6C, 0x01);
print_debug("NOP\r\n");
/* wait 200us*/
/* wait 200us */
// You need to do the memory reference. That causes the nop cycle.
dimms_read(0);
udelay(400);
print_debug("PRECHARGE\r\n");
/* set precharge */
pci_write_config8(north,0x6C, 0x02);
pci_write_config8(north, 0x6C, 0x02);
print_debug("DUMMY READS\r\n");
/* dummy reads*/
/* dummy reads */
dimms_read(0);
udelay(200);
print_debug("CBR\r\n");
/* set CBR*/
pci_write_config8(north,0x6C, 0x04);
/* do 8 reads and wait >100us between each - from via*/
/* set CBR */
pci_write_config8(north, 0x6C, 0x04);
/* do 8 reads and wait >100us between each - from via */
dimms_read(0);
udelay(200);
dimms_read(0);
@ -335,43 +336,43 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
dimms_read(0);
udelay(200);
print_debug("MRS\r\n");
/* set MRS*/
pci_write_config8(north,0x6c, 0x03);
/* set MRS */
pci_write_config8(north, 0x6c, 0x03);
#if DIMM_CL2
dimms_read(0x150);
#else // CL=3
#else // CL=3
dimms_read(0x1d0);
#endif
udelay(200);
print_debug("NORMAL\r\n");
/* set to normal mode */
pci_write_config8(north,0x6C, 0x08);
pci_write_config8(north, 0x6C, 0x08);
dimms_write(0x55aa55aa);
dimms_read(0);
udelay(200);
print_debug("set ref. rate\r\n");
// Set the refresh rate.
#if DIMM_PC133
pci_write_config8(north,0x6A, 0x86);
pci_write_config8(north, 0x6A, 0x86);
#else
pci_write_config8(north,0x6A, 0x65);
pci_write_config8(north, 0x6A, 0x65);
#endif
print_debug("enable multi-page open\r\n");
// enable multi-page open
pci_write_config8(north,0x6B, 0x0d);
pci_write_config8(north, 0x6B, 0x0d);
base = 0;
for(slot = 0; slot < 4; slot++) {
for (slot = 0; slot < 4; slot++) {
size = spd_module_size(slot);
/* side 0 */
base += size & 0xffff;
pci_write_config8(north, ramregs[2*slot], base);
pci_write_config8(north, ramregs[2 * slot], base);
/* side 1 */
base += size >> 16;
if (base > 0xff)
base = 0xff;
pci_write_config8(north, ramregs[2*slot + 1], base);
pci_write_config8(north, ramregs[2 * slot + 1], base);
if (!size)
continue;
@ -379,13 +380,13 @@ static void sdram_enable(int controllers, const struct mem_controller *ctrl)
/* Calculate the value of MA mapping type register,
* based on size of SDRAM chips. */
size = (size & 0xffff) << (3 + 3);
/* convert module size to be in Mbits */
/* convert module size to be in Mbits */
size /= spd_num_chips(slot);
print_debug_hex16(size);
print_debug(" is the chip size\r\n");
if (size < 64)
ma = 0;
if (size < 256)
else if (size < 256)
ma = 8;
else
ma = 0xe;

8
src/southbridge/via/vt8231/Config.lb
View File

@ -1,2 +1,8 @@
config chip.h
object vt8231.o
driver vt8231.o
driver vt8231_lpc.o
driver vt8231_acpi.o
driver vt8231_ide.o
driver vt8231_nic.o
#driver vt8231_usb.o

10
src/southbridge/via/vt8231/chip.h
View File

@ -4,18 +4,10 @@
extern struct chip_operations southbridge_via_vt8231_ops;
struct southbridge_via_vt8231_config {
/* PCI function enables */
/* i.e. so that pci scan bus will find them. */
/* I am putting in IDE as an example but obviously this needs
* to be more complete!
*/
int enable_ide;
/* enables of functions of devices */
int enable_usb;
/* enables of Non-PCI devices */
int enable_native_ide;
int enable_com_ports;
int enable_keyboard;
int enable_nvram;
};
#endif /* _SOUTHBRIDGE_VIA_VT8231 */

452
src/southbridge/via/vt8231/vt8231.c
View File

@ -1,441 +1,73 @@
#include <arch/io.h>
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
#include <console/console.h>
#include <pc80/mc146818rtc.h>
#include <pc80/keyboard.h>
#include "vt8231.h"
#include "chip.h"
void pc_keyboard_init(void);
/* Base 8231 controller */
static device_t lpc_dev;
void hard_reset(void)
void hard_reset(void)
{
printk_err("NO HARD RESET ON VT8231! FIX ME!\n");
}
static void usb_on(int enable)
{
unsigned char regval;
/* Base 8231 controller */
device_t dev0 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, 0);
/* USB controller 1 */
device_t dev2 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_2, 0);
/* USB controller 2 */
device_t dev3 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_2, dev2);
/* enable USB1 */
if(dev2) {
if (enable) {
pci_write_config8(dev2, 0x3c, 0x05);
pci_write_config8(dev2, 0x04, 0x07);
} else {
pci_write_config8(dev2, 0x3c, 0x00);
pci_write_config8(dev2, 0x04, 0x00);
}
}
if(dev0) {
regval = pci_read_config8(dev0, 0x50);
if (enable)
regval &= ~(0x10);
else
regval |= 0x10;
pci_write_config8(dev0, 0x50, regval);
}
/* enable USB2 */
if(dev3) {
if (enable) {
pci_write_config8(dev3, 0x3c, 0x05);
pci_write_config8(dev3, 0x04, 0x07);
} else {
pci_write_config8(dev3, 0x3c, 0x00);
pci_write_config8(dev3, 0x04, 0x00);
}
}
if(dev0) {
regval = pci_read_config8(dev0, 0x50);
if (enable)
regval &= ~(0x20);
else
regval |= 0x20;
pci_write_config8(dev0, 0x50, regval);
}
printk_err("NO HARD RESET ON VT8231! FIX ME!\n");
}
static void keyboard_on(void)
{
unsigned char regval;
/* Base 8231 controller */
device_t dev0 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, 0);
/* kevinh/Ispiri - update entire function to use
new pci_write_config8 */
if (dev0) {
regval = pci_read_config8(dev0, 0x51);
if (lpc_dev) {
regval = pci_read_config8(lpc_dev, 0x51);
regval |= 0x0f;
pci_write_config8(dev0, 0x51, regval);
pci_write_config8(lpc_dev, 0x51, regval);
}
init_pc_keyboard(0x60, 0x64, 0);
}
static void nvram_on(void)
static void com_port_on(void)
{
/*
* the VIA 8231 South has a very different nvram setup than the
* piix4e ...
* turn on ProMedia nvram.
* TO DO: use the PciWriteByte function here.
*/
/*
* kevinh/Ispiri - I don't think this is the correct address/value
* intel_conf_writeb(0x80008841, 0xFF);
*/
}
/*
* Enable the ethernet device and turn off stepping (because it is integrated
* inside the southbridge)
*/
static void ethernet_fixup()
{
device_t edev;
uint8_t byte;
printk_info("Ethernet fixup\n");
edev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8233_7, 0);
if (edev) {
printk_debug("Configuring VIA LAN\n");
/* We don't need stepping - though the device supports it */
byte = pci_read_config8(edev, PCI_COMMAND);
byte &= ~PCI_COMMAND_WAIT;
pci_write_config8(edev, PCI_COMMAND, byte);
} else {
printk_debug("VIA LAN not found\n");
}
}
/* we need to do things in this function so that PCI scan will find
* them. One problem here is that we can't use ANY of the new device
* stuff. This work here precedes all that.
* Fundamental problem with linuxbios V2 architecture.
* You can't do pci control in the C code without having done a PCI scan.
* But in some cases you need to to pci control in the c code before doing
* a PCI scan. But you can't use arch/romcc_io.h (the code you need) because
* that has functions with the same name but different type signatures
* (e.g. device_t). This needs to get fixed. We need low-level pci scans
* in the C code.
*/
static void vt8231_pci_enable(struct southbridge_via_vt8231_config *conf)
{
/*
unsigned long busdevfn = 0x8000;
if (conf->enable_ide) {
printk_debug("%s: enabling IDE function\n", __FUNCTION__);
}
*/
}
/* PIRQ init
*/
void pci_assign_irqs(unsigned bus, unsigned slot, const unsigned char pIntAtoD[4]);
static const unsigned char southbridgeIrqs[4] = { 11, 5, 10, 12 };
static const unsigned char enetIrqs[4] = { 11, 5, 10, 12 };
static const unsigned char slotIrqs[4] = { 5, 10, 12, 11 };
/*
Our IDSEL mappings are as follows
PCI slot is AD31 (device 15) (00:14.0)
Southbridge is AD28 (device 12) (00:11.0)
*/
static void pci_routing_fixup(struct device *dev)
{
printk_info("%s: dev is %p\n", __FUNCTION__, dev);
if (dev) {
/* initialize PCI interupts - these assignments depend
on the PCB routing of PINTA-D
PINTA = IRQ11
PINTB = IRQ5
PINTC = IRQ10
PINTD = IRQ12
*/
pci_write_config8(dev, 0x55, 0xb0);
pci_write_config8(dev, 0x56, 0xa5);
pci_write_config8(dev, 0x57, 0xc0);
}
// Standard southbridge components
printk_info("setting southbridge\n");
pci_assign_irqs(0, 0x11, southbridgeIrqs);
// Ethernet built into southbridge
printk_info("setting ethernet\n");
pci_assign_irqs(0, 0x12, enetIrqs);
// PCI slot
printk_info("setting pci slot\n");
pci_assign_irqs(0, 0x14, slotIrqs);
printk_info("%s: DONE\n", __FUNCTION__);
}
void
dump_south(void)
{
device_t dev0;
dev0 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, 0);
int i,j;
for(i = 0; i < 256; i += 16) {
printk_debug("0x%x: ", i);
for(j = 0; j < 16; j++) {
printk_debug("%02x ", pci_read_config8(dev0, i+j));
}
printk_debug("\n");
}
}
static void vt8231_init(struct southbridge_via_vt8231_config *conf)
{
unsigned char enables;
device_t dev0;
device_t dev1;
device_t devpwr;
// to do: use the pcibios_find function here, instead of
// hard coding the devfn.
// done - kevinh/Ispiri
printk_debug("vt8231 init\n");
/* Base 8231 controller */
dev0 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, 0);
/* IDE controller */
dev1 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_1, 0);
/* Power management controller */
devpwr = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4, 0);
// enable the internal I/O decode
enables = pci_read_config8(dev0, 0x6C);
enables |= 0x80;
pci_write_config8(dev0, 0x6C, enables);
// Map 4MB of FLASH into the address space
pci_write_config8(dev0, 0x41, 0x7f);
// Set bit 6 of 0x40, because Award does it (IO recovery time)
// IMPORTANT FIX - EISA 0x4d0 decoding must be on so that PCI
// interrupts can be properly marked as level triggered.
enables = pci_read_config8(dev0, 0x40);
pci_write_config8(dev0, 0x40, enables);
// Set 0x42 to 0xf0 to match Award bios
enables = pci_read_config8(dev0, 0x42);
enables |= 0xf0;
pci_write_config8(dev0, 0x42, enables);
// Set bit 3 of 0x4a, to match award (dummy pci request)
enables = pci_read_config8(dev0, 0x4a);
enables |= 0x08;
pci_write_config8(dev0, 0x4a, enables);
// Set bit 3 of 0x4f to match award (use INIT# as cpu reset)
enables = pci_read_config8(dev0, 0x4f);
enables |= 0x08;
pci_write_config8(dev0, 0x4f, enables);
// Set 0x58 to 0x03 to match Award
pci_write_config8(dev0, 0x58, 0x03);
// enable the ethernet/RTC
if(dev0) {
enables = pci_read_config8(dev0, 0x51);
enables |= 0x18;
pci_write_config8(dev0, 0x51, enables);
}
#if 0
// enable com1 and com2.
if (conf->enable_com_ports) {
enables = pci_read_config8(dev0, 0x6e);
/* 0x80 is enable com port b, 0x10 is to make it com2, 0x8
* is enable com port a as com1 kevinh/Ispiri - Old code
* thought 0x01 would make it com1, that was wrong enables =
* 0x80 | 0x10 | 0x8 ; pci_write_config8(dev0, 0x6e,
* enables); // note: this is also a redo of some port of
* assembly, but we want everything up.
*/
/* set com1 to 115 kbaud not clear how to do this yet.
* forget it; done in assembly.
*/
enables = pci_read_config8(dev, 0x6e);
/* 0x80 is enable com port b, 0x10 is to make it com2, 0x8
* is enable com port a as com1 kevinh/Ispiri - Old code
* thought 0x01 would make it com1, that was wrong enables =
* 0x80 | 0x10 | 0x8 ; pci_write_config8(dev, 0x6e,
* enables); // note: this is also a redo of some port of
* assembly, but we want everything up.
*/
}
// enable IDE, since Linux won't do it.
// First do some more things to devfn (17,0)
// note: this should already be cleared, according to the book.
enables = pci_read_config8(dev0, 0x50);
printk_debug("IDE enable in reg. 50 is 0x%x\n", enables);
enables &= ~8; // need manifest constant here!
printk_debug("set IDE reg. 50 to 0x%x\n", enables);
pci_write_config8(dev0, 0x50, enables);
// set default interrupt values (IDE)
enables = pci_read_config8(dev0, 0x4c);
printk_debug("IRQs in reg. 4c are 0x%x\n", enables & 0xf);
// clear out whatever was there.
enables &= ~0xf;
enables |= 4;
printk_debug("setting reg. 4c to 0x%x\n", enables);
pci_write_config8(dev0, 0x4c, enables);
// set up the serial port interrupts.
// com2 to 3, com1 to 4
pci_write_config8(dev0, 0x46, 0x04);
pci_write_config8(dev0, 0x47, 0x03);
pci_write_config8(dev0, 0x6e, 0x98);
//
// Power management setup
//
// Set ACPI base address to IO 0x4000
pci_write_config32(devpwr, 0x48, 0x4001);
// Enable ACPI access (and setup like award)
pci_write_config8(devpwr, 0x41, 0x84);
// Set hardware monitor base address to IO 0x6000
pci_write_config32(devpwr, 0x70, 0x6001);
// Enable hardware monitor (and setup like award)
pci_write_config8(devpwr, 0x74, 0x01);
// set IO base address to 0x5000
pci_write_config32(devpwr, 0x90, 0x5001);
// Enable SMBus
pci_write_config8(devpwr, 0xd2, 0x01);
//
// IDE setup
//
if (! conf->enable_native_ide) {
// Run the IDE controller in 'compatiblity mode - i.e. don't use PCI
// interrupts. Using PCI ints confuses linux for some reason.
printk_info("%s: enabling compatibility IDE addresses\n", __FUNCTION__);
enables = pci_read_config8(dev1, 0x42);
printk_debug("enables in reg 0x42 0x%x\n", enables);
enables &= ~0xc0; // compatability mode
pci_write_config8(dev1, 0x42, enables);
enables = pci_read_config8(dev1, 0x42);
printk_debug("enables in reg 0x42 read back as 0x%x\n", enables);
}
enables = pci_read_config8(dev1, 0x40);
printk_debug("enables in reg 0x40 0x%x\n", enables);
enables |= 3;
pci_write_config8(dev1, 0x40, enables);
enables = pci_read_config8(dev1, 0x40);
printk_debug("enables in reg 0x40 read back as 0x%x\n", enables);
// Enable prefetch buffers
enables = pci_read_config8(dev1, 0x41);
enables |= 0xf0;
pci_write_config8(dev1, 0x41, enables);
// Lower thresholds (cause award does it)
enables = pci_read_config8(dev1, 0x43);
enables &= ~0x0f;
enables |= 0x05;
pci_write_config8(dev1, 0x43, enables);
// PIO read prefetch counter (cause award does it)
pci_write_config8(dev1, 0x44, 0x18);
// Use memory read multiple
pci_write_config8(dev1, 0x45, 0x1c);
// address decoding.
// we want "flexible", i.e. 1f0-1f7 etc. or native PCI
// kevinh@ispiri.com - the standard linux drivers seem ass slow when
// used in native mode - I've changed back to classic
enables = pci_read_config8(dev1, 0x9);
printk_debug("enables in reg 0x9 0x%x\n", enables);
// by the book, set the low-order nibble to 0xa.
if (conf->enable_native_ide) {
enables &= ~0xf;
// cf/cg silicon needs an 'f' here.
enables |= 0xf;
} else {
enables &= ~0x5;
}
pci_write_config8(dev1, 0x9, enables);
enables = pci_read_config8(dev1, 0x9);
printk_debug("enables in reg 0x9 read back as 0x%x\n", enables);
// standard bios sets master bit.
enables = pci_read_config8(dev1, 0x4);
printk_debug("command in reg 0x4 0x%x\n", enables);
enables |= 7;
// No need for stepping - kevinh@ispiri.com
enables &= ~0x80;
pci_write_config8(dev1, 0x4, enables);
enables = pci_read_config8(dev1, 0x4);
printk_debug("command in reg 0x4 reads back as 0x%x\n", enables);
if (! conf->enable_native_ide) {
// Use compatability mode - per award bios
pci_write_config32(dev1, 0x10, 0x0);
pci_write_config32(dev1, 0x14, 0x0);
pci_write_config32(dev1, 0x18, 0x0);
pci_write_config32(dev1, 0x1c, 0x0);
// Force interrupts to use compat mode - just like Award bios
pci_write_config8(dev1, 0x3d, 00);
pci_write_config8(dev1, 0x3c, 0xff);
}
/* set up isa bus -- i/o recovery time, rom write enable, extend-ale */
pci_write_config8(dev0, 0x40, 0x54);
ethernet_fixup();
// Start the rtc
rtc_init(0);
/* set com1 to 115 kbaud not clear how to do this yet.
* forget it; done in assembly.
*/
#endif
}
static void southbridge_init(struct device *dev) {
vt8231_init(dev->chip_info);
pci_routing_fixup(dev);
}
struct device_operations vt8231_dev_ops = {
.init = &southbridge_init,
};
static void southbridge_enable(struct device *dev)
/* FixME: to be removed ? */
static void vt8231_enable(struct device *dev)
{
dev->ops = &vt8231_dev_ops;
struct southbridge_via_vt8231_config *conf = dev->chip_info;
if (!lpc_dev) {
/* the first time called, enable devices not on PCI bus
* FIXME: is that device struct there yet? */
lpc_dev = dev_find_device(PCI_VENDOR_ID_VIA,
PCI_DEVICE_ID_VIA_8231, 0);
if (conf->enable_keyboard)
keyboard_on();
if (conf->enable_com_ports)
com_port_on();
}
}
struct chip_operations southbridge_via_vt8231_ops = {
CHIP_NAME("VIA vt8231")
.enable_dev = southbridge_enable,
.enable_dev = vt8231_enable,
};

44
src/southbridge/via/vt8231/vt8231_acpi.c Normal file
View File

@ -0,0 +1,44 @@
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
#include "vt8231.h"
static void acpi_init(struct device *dev)
{
printk_debug("Configuring VIA ACPI\n");
// Set ACPI base address to IO 0x4000
pci_write_config32(dev, 0x48, 0x4001);
// Enable ACPI access (and setup like award)
pci_write_config8(dev, 0x41, 0x84);
// Set hardware monitor base address to IO 0x6000
pci_write_config32(dev, 0x70, 0x6001);
// Enable hardware monitor (and setup like award)
pci_write_config8(dev, 0x74, 0x01);
// set IO base address to 0x5000
pci_write_config32(dev, 0x90, 0x5001);
// Enable SMBus
pci_write_config8(dev, 0xd2, 0x01);
}
static struct device_operations acpi_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = acpi_init,
.enable = 0,
.ops_pci = 0,
};
static struct pci_driver northbridge_driver __pci_driver = {
.ops = &acpi_ops,
.vendor = PCI_VENDOR_ID_VIA,
.device = PCI_DEVICE_ID_VIA_8231_4,
};

246
src/southbridge/via/vt8231/vt8231_early_smbus.c
View File

@ -12,12 +12,12 @@
#define SMBTRNSADD 0x9
#define SMBSLVDATA 0xa
#define SMLINK_PIN_CTL 0xe
#define SMBUS_PIN_CTL 0xf
#define SMBUS_PIN_CTL 0xf
/* Define register settings */
#define HOST_RESET 0xff
#define DIMM_BASE 0xa0 // 1010000 is base for DIMM in SMBus
#define READ_CMD 0x01 // 1 in the 0 bit of SMBHSTADD states to READ
#define DIMM_BASE 0xa0 // 1010000 is base for DIMM in SMBus
#define READ_CMD 0x01 // 1 in the 0 bit of SMBHSTADD states to READ
#define SMBUS_TIMEOUT (100*1000*10)
@ -27,29 +27,28 @@ static void enable_smbus(void)
device_t dev;
unsigned char c;
/* Power management controller */
dev = pci_locate_device(PCI_ID(0x1106,0x8235), 0);
dev = pci_locate_device(PCI_ID(0x1106, 0x8235), 0);
if (dev == PCI_DEV_INVALID) {
die("SMBUS controller not found\r\n");
}
// set IO base address to SMBUS_IO_BASE
pci_write_config32(dev, 0x90, SMBUS_IO_BASE|1);
pci_write_config32(dev, 0x90, SMBUS_IO_BASE | 1);
// Enable SMBus
c = pci_read_config8(dev, 0xd2);
c |= 5;
pci_write_config8(dev, 0xd2, c);
/* make it work for I/O ...
*/
dev = pci_locate_device(PCI_ID(0x1106,0x8231), 0);
dev = pci_locate_device(PCI_ID(0x1106, 0x8231), 0);
c = pci_read_config8(dev, 4);
c |= 1;
pci_write_config8(dev, 4, c);
print_debug_hex8(c);
print_debug(" is the comm register\r\n");
print_debug("SMBus controller enabled\r\n");
}
@ -61,52 +60,51 @@ static inline void smbus_delay(void)
static int smbus_wait_until_active(void)
{
unsigned long loops;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
val = inb(SMBUS_IO_BASE + SMBHSTSTAT);
if ((val & 1)) {
break;
}
} while(--loops);
return loops?0:-4;
unsigned long loops;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
val = inb(SMBUS_IO_BASE + SMBHSTSTAT);
if ((val & 1)) {
break;
}
} while (--loops);
return loops ? 0 : -4;
}
static int smbus_wait_until_ready(void)
{
unsigned long loops;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
val = inb(SMBUS_IO_BASE + SMBHSTSTAT);
if ((val & 1) == 0) {
break;
}
if(loops == (SMBUS_TIMEOUT / 2)) {
outb(inb(SMBUS_IO_BASE + SMBHSTSTAT),
SMBUS_IO_BASE + SMBHSTSTAT);
}
} while(--loops);
return loops?0:-2;
unsigned long loops;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
val = inb(SMBUS_IO_BASE + SMBHSTSTAT);
if ((val & 1) == 0) {
break;
}
if (loops == (SMBUS_TIMEOUT / 2)) {
outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT);
}
} while (--loops);
return loops ? 0 : -2;
}
static int smbus_wait_until_done(void)
{
unsigned long loops;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
unsigned long loops;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
val = inb(SMBUS_IO_BASE + SMBHSTSTAT);
if ( (val & 1) == 0) {
break;
}
} while(--loops);
return loops?0:-3;
val = inb(SMBUS_IO_BASE + SMBHSTSTAT);
if ((val & 1) == 0) {
break;
}
} while (--loops);
return loops ? 0 : -3;
}
void smbus_reset(void)
@ -115,13 +113,13 @@ void smbus_reset(void)
outb(HOST_RESET, SMBUS_IO_BASE + SMBHSTSTAT);
outb(HOST_RESET, SMBUS_IO_BASE + SMBHSTSTAT);
outb(HOST_RESET, SMBUS_IO_BASE + SMBHSTSTAT);
smbus_wait_until_ready();
print_debug("After reset status ");
print_debug_hex8( inb(SMBUS_IO_BASE + SMBHSTSTAT));
print_debug_hex8(inb(SMBUS_IO_BASE + SMBHSTSTAT));
print_debug("\r\n");
}
static void smbus_print_error(unsigned char host_status_register)
{
@ -152,96 +150,95 @@ static void smbus_print_error(unsigned char host_status_register)
*/
static int smbus_read_byte(unsigned device, unsigned address)
{
unsigned char global_control_register;
unsigned char global_status_register;
unsigned char byte;
unsigned char global_control_register;
unsigned char global_status_register;
unsigned char byte;
if (smbus_wait_until_ready() < 0) {
outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT);
if ( smbus_wait_until_ready() < 0 ) {
return -2;
}
}
if (smbus_wait_until_ready() < 0) {
outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT);
if (smbus_wait_until_ready() < 0) {
return -2;
}
}
/* setup transaction */
/* disable interrupts */
outb(inb(SMBUS_IO_BASE + SMBHSTCTL) & 0xfe, SMBUS_IO_BASE + SMBHSTCTL);
/* set the device I'm talking too */
outb(((device & 0x7f) << 1) | 1, SMBUS_IO_BASE + SMBXMITADD);
/* set the command/address... */
outb(address & 0xFF, SMBUS_IO_BASE + SMBHSTCMD);
/* set up for a byte data read */
outb((inb(SMBUS_IO_BASE + SMBHSTCTL) & 0xe3) | (0x2<<2), SMBUS_IO_BASE + SMBHSTCTL);
/* setup transaction */
/* disable interrupts */
outb(inb(SMBUS_IO_BASE + SMBHSTCTL) & 0xfe, SMBUS_IO_BASE + SMBHSTCTL);
/* set the device I'm talking too */
outb(((device & 0x7f) << 1) | 1, SMBUS_IO_BASE + SMBXMITADD);
/* set the command/address... */
outb(address & 0xFF, SMBUS_IO_BASE + SMBHSTCMD);
/* set up for a byte data read */
outb((inb(SMBUS_IO_BASE + SMBHSTCTL) & 0xe3) | (0x2 << 2), SMBUS_IO_BASE + SMBHSTCTL);
/* clear any lingering errors, so the transaction will run */
outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT);
/* clear any lingering errors, so the transaction will run */
outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT);
/* clear the data byte...*/
outb(0, SMBUS_IO_BASE + SMBHSTDAT0);
/* clear the data byte... */
outb(0, SMBUS_IO_BASE + SMBHSTDAT0);
/* start a byte read, with interrupts disabled */
outb((inb(SMBUS_IO_BASE + SMBHSTCTL) | 0x40), SMBUS_IO_BASE + SMBHSTCTL);
/* poll for it to start */
if (smbus_wait_until_active() < 0) {
return -4;
}
/* start a byte read, with interrupts disabled */
outb((inb(SMBUS_IO_BASE + SMBHSTCTL) | 0x40), SMBUS_IO_BASE + SMBHSTCTL);
/* poll for it to start */
if (smbus_wait_until_active() < 0) {
return -4;
}
/* poll for transaction completion */
if (smbus_wait_until_done() < 0) {
return -3;
}
/* poll for transaction completion */
if (smbus_wait_until_done() < 0) {
return -3;
}
/* Ignore the Host Busy & Command Complete ? */
global_status_register = inb(SMBUS_IO_BASE + SMBHSTSTAT) & ~((1<<1)|(1<<0));
global_status_register = inb(SMBUS_IO_BASE + SMBHSTSTAT) & ~((1 << 1) | (1 << 0));
/* read results of transaction */
byte = inb(SMBUS_IO_BASE + SMBHSTDAT0);
/* read results of transaction */
byte = inb(SMBUS_IO_BASE + SMBHSTDAT0);
if (global_status_register != 0) {
return -1;
}
return byte;
if (global_status_register != 0) {
return -1;
}
return byte;
}
#if 0
/* SMBus routines borrowed from VIA's Trident Driver */
/* this works, so I am not going to touch it for now -- rgm */
static unsigned char smbus_read_byte(unsigned char devAdr,
unsigned char bIndex)
static unsigned char smbus_read_byte(unsigned char devAdr, unsigned char bIndex)
{
unsigned int i;
unsigned char bData;
unsigned char sts = 0;
unsigned char bData;
unsigned char sts = 0;
/* clear host status */
outb(0xff, SMBUS_IO_BASE);
/* check SMBUS ready */
for ( i = 0; i < SMBUS_TIMEOUT; i++ )
if ( (inb(SMBUS_IO_BASE) & 0x01) == 0 )
for (i = 0; i < SMBUS_TIMEOUT; i++)
if ((inb(SMBUS_IO_BASE) & 0x01) == 0)
break;
/* set host command */
outb(bIndex, SMBUS_IO_BASE+3);
outb(bIndex, SMBUS_IO_BASE + 3);
/* set slave address */
outb(devAdr | 0x01, SMBUS_IO_BASE+4);
outb(devAdr | 0x01, SMBUS_IO_BASE + 4);
/* start */
outb(0x48, SMBUS_IO_BASE+2);
outb(0x48, SMBUS_IO_BASE + 2);
/* SMBUS Wait Ready */
for ( i = 0; i < SMBUS_TIMEOUT; i++ )
if ( ((sts = inb(SMBUS_IO_BASE)) & 0x01) == 0 )
for (i = 0; i < SMBUS_TIMEOUT; i++)
if (((sts = inb(SMBUS_IO_BASE)) & 0x01) == 0)
break;
if ((sts & ~3) != 0) {
smbus_print_error(sts);
return 0;
}
bData=inb(SMBUS_IO_BASE+5);
bData = inb(SMBUS_IO_BASE + 5);
return bData;
}
#endif
/* for reference, here is the fancier version which we will use at some
@ -252,11 +249,11 @@ int smbus_read_byte(unsigned device, unsigned address, unsigned char *result)
{
unsigned char host_status_register;
unsigned char byte;
reset();
smbus_wait_until_ready();
/* setup transaction */
/* disable interrupts */
outb(inb(SMBUS_IO_BASE + SMBHSTCTL) & (~1), SMBUS_IO_BASE + SMBHSTCTL);
@ -265,35 +262,32 @@ int smbus_read_byte(unsigned device, unsigned address, unsigned char *result)
/* set the command/address... */
outb(address & 0xFF, SMBUS_IO_BASE + SMBHSTCMD);
/* set up for a byte data read */
outb((inb(SMBUS_IO_BASE + SMBHSTCTL) & 0xE3) | (0x2 << 2),
SMBUS_IO_BASE + SMBHSTCTL);
outb((inb(SMBUS_IO_BASE + SMBHSTCTL) & 0xE3) | (0x2 << 2), SMBUS_IO_BASE + SMBHSTCTL);
/* clear any lingering errors, so the transaction will run */
outb(inb(SMBUS_IO_BASE + SMBHSTSTAT), SMBUS_IO_BASE + SMBHSTSTAT);
/* clear the data byte...*/
/* clear the data byte... */
outb(0, SMBUS_IO_BASE + SMBHSTDAT0);
/* start the command */
outb((inb(SMBUS_IO_BASE + SMBHSTCTL) | 0x40),
SMBUS_IO_BASE + SMBHSTCTL);
outb((inb(SMBUS_IO_BASE + SMBHSTCTL) | 0x40), SMBUS_IO_BASE + SMBHSTCTL);
/* poll for transaction completion */
smbus_wait_until_done();
host_status_register = inb(SMBUS_IO_BASE + SMBHSTSTAT);
/* Ignore the In Use Status... */
host_status_register &= ~(1 << 6);
/* read results of transaction */
byte = inb(SMBUS_IO_BASE + SMBHSTDAT0);
smbus_print_error(byte);
*result = byte;
return host_status_register != 0x02;
}
#endif

108
src/southbridge/via/vt8231/vt8231_ide.c Normal file
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@ -0,0 +1,108 @@
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
#include "vt8231.h"
#include "chip.h"
static void ide_init(struct device *dev)
{
struct southbridge_via_vt8231_config *conf;
unsigned char enables;
if (!conf->enable_native_ide) {
// Run the IDE controller in 'compatiblity mode - i.e. don't use PCI
// interrupts. Using PCI ints confuses linux for some reason.
printk_info("%s: enabling compatibility IDE addresses\n", __FUNCTION__);
enables = pci_read_config8(dev, 0x42);
printk_debug("enables in reg 0x42 0x%x\n", enables);
enables &= ~0xc0; // compatability mode
pci_write_config8(dev, 0x42, enables);
enables = pci_read_config8(dev, 0x42);
printk_debug("enables in reg 0x42 read back as 0x%x\n", enables);
}
enables = pci_read_config8(dev, 0x40);
printk_debug("enables in reg 0x40 0x%x\n", enables);
enables |= 3;
pci_write_config8(dev, 0x40, enables);
enables = pci_read_config8(dev, 0x40);
printk_debug("enables in reg 0x40 read back as 0x%x\n", enables);
// Enable prefetch buffers
enables = pci_read_config8(dev, 0x41);
enables |= 0xf0;
pci_write_config8(dev, 0x41, enables);
// Lower thresholds (cause award does it)
enables = pci_read_config8(dev, 0x43);
enables &= ~0x0f;
enables |= 0x05;
pci_write_config8(dev, 0x43, enables);
// PIO read prefetch counter (cause award does it)
pci_write_config8(dev, 0x44, 0x18);
// Use memory read multiple
pci_write_config8(dev, 0x45, 0x1c);
// address decoding.
// we want "flexible", i.e. 1f0-1f7 etc. or native PCI
// kevinh@ispiri.com - the standard linux drivers seem ass slow when
// used in native mode - I've changed back to classic
enables = pci_read_config8(dev, 0x9);
printk_debug("enables in reg 0x9 0x%x\n", enables);
// by the book, set the low-order nibble to 0xa.
if (conf->enable_native_ide) {
enables &= ~0xf;
// cf/cg silicon needs an 'f' here.
enables |= 0xf;
} else {
enables &= ~0x5;
}
pci_write_config8(dev, 0x9, enables);
enables = pci_read_config8(dev, 0x9);
printk_debug("enables in reg 0x9 read back as 0x%x\n", enables);
// standard bios sets master bit.
enables = pci_read_config8(dev, 0x4);
printk_debug("command in reg 0x4 0x%x\n", enables);
enables |= 7;
// No need for stepping - kevinh@ispiri.com
enables &= ~0x80;
pci_write_config8(dev, 0x4, enables);
enables = pci_read_config8(dev, 0x4);
printk_debug("command in reg 0x4 reads back as 0x%x\n", enables);
if (!conf->enable_native_ide) {
// Use compatability mode - per award bios
pci_write_config32(dev, 0x10, 0x0);
pci_write_config32(dev, 0x14, 0x0);
pci_write_config32(dev, 0x18, 0x0);
pci_write_config32(dev, 0x1c, 0x0);
// Force interrupts to use compat mode - just like Award bios
pci_write_config8(dev, 0x3d, 00);
pci_write_config8(dev, 0x3c, 0xff);
}
}
static struct device_operations ide_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = ide_init,
.enable = 0,
.ops_pci = 0,
};
static struct pci_driver northbridge_driver __pci_driver = {
.ops = &ide_ops,
.vendor = PCI_VENDOR_ID_VIA,
.device = PCI_DEVICE_ID_VIA_82C586_1,
};

154
src/southbridge/via/vt8231/vt8231_lpc.c Normal file
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@ -0,0 +1,154 @@
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
#include <pc80/mc146818rtc.h>
#include "vt8231.h"
#include "chip.h"
/* PIRQ init
*/
void pci_assign_irqs(unsigned bus, unsigned slot, const unsigned char pIntAtoD[4]);
static const unsigned char southbridgeIrqs[4] = { 11, 5, 10, 12 };
static const unsigned char enetIrqs[4] = { 11, 5, 10, 12 };
static const unsigned char slotIrqs[4] = { 5, 10, 12, 11 };
/*
Our IDSEL mappings are as follows
PCI slot is AD31 (device 15) (00:14.0)
Southbridge is AD28 (device 12) (00:11.0)
*/
static void pci_routing_fixup(struct device *dev)
{
printk_info("%s: dev is %p\n", __FUNCTION__, dev);
if (dev) {
/* initialize PCI interupts - these assignments depend
on the PCB routing of PINTA-D
PINTA = IRQ11
PINTB = IRQ5
PINTC = IRQ10
PINTD = IRQ12
*/
pci_write_config8(dev, 0x55, 0xb0);
pci_write_config8(dev, 0x56, 0xa5);
pci_write_config8(dev, 0x57, 0xc0);
}
// Standard southbridge components
printk_info("setting southbridge\n");
pci_assign_irqs(0, 0x11, southbridgeIrqs);
// Ethernet built into southbridge
printk_info("setting ethernet\n");
pci_assign_irqs(0, 0x12, enetIrqs);
// PCI slot
printk_info("setting pci slot\n");
pci_assign_irqs(0, 0x14, slotIrqs);
printk_info("%s: DONE\n", __FUNCTION__);
}
static void vt8231_init(struct device *dev)
{
unsigned char enables;
struct southbridge_via_vt8231_config *conf = dev->chip_info;
printk_debug("vt8231 init\n");
// enable the internal I/O decode
enables = pci_read_config8(dev, 0x6C);
enables |= 0x80;
pci_write_config8(dev, 0x6C, enables);
// Map 4MB of FLASH into the address space
pci_write_config8(dev, 0x41, 0x7f);
// Set bit 6 of 0x40, because Award does it (IO recovery time)
// IMPORTANT FIX - EISA 0x4d0 decoding must be on so that PCI
// interrupts can be properly marked as level triggered.
enables = pci_read_config8(dev, 0x40);
pci_write_config8(dev, 0x40, enables);
// Set 0x42 to 0xf0 to match Award bios
enables = pci_read_config8(dev, 0x42);
enables |= 0xf0;
pci_write_config8(dev, 0x42, enables);
// Set bit 3 of 0x4a, to match award (dummy pci request)
enables = pci_read_config8(dev, 0x4a);
enables |= 0x08;
pci_write_config8(dev, 0x4a, enables);
// Set bit 3 of 0x4f to match award (use INIT# as cpu reset)
enables = pci_read_config8(dev, 0x4f);
enables |= 0x08;
pci_write_config8(dev, 0x4f, enables);
// Set 0x58 to 0x03 to match Award
pci_write_config8(dev, 0x58, 0x03);
// enable the ethernet/RTC
if (dev) {
enables = pci_read_config8(dev, 0x51);
enables |= 0x18;
pci_write_config8(dev, 0x51, enables);
}
// enable IDE, since Linux won't do it.
// First do some more things to devfn (17,0)
// note: this should already be cleared, according to the book.
enables = pci_read_config8(dev, 0x50);
printk_debug("IDE enable in reg. 50 is 0x%x\n", enables);
enables &= ~8; // need manifest constant here!
printk_debug("set IDE reg. 50 to 0x%x\n", enables);
pci_write_config8(dev, 0x50, enables);
// set default interrupt values (IDE)
enables = pci_read_config8(dev, 0x4c);
printk_debug("IRQs in reg. 4c are 0x%x\n", enables & 0xf);
// clear out whatever was there.
enables &= ~0xf;
enables |= 4;
printk_debug("setting reg. 4c to 0x%x\n", enables);
pci_write_config8(dev, 0x4c, enables);
// set up the serial port interrupts.
// com2 to 3, com1 to 4
pci_write_config8(dev, 0x46, 0x04);
pci_write_config8(dev, 0x47, 0x03);
pci_write_config8(dev, 0x6e, 0x98);
/* set up isa bus -- i/o recovery time, rom write enable, extend-ale */
pci_write_config8(dev, 0x40, 0x54);
//ethernet_fixup();
// Start the rtc
rtc_init(0);
}
static void southbridge_init(struct device *dev)
{
vt8231_init(dev);
pci_routing_fixup(dev);
}
static struct device_operations vt8231_lpc_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = &southbridge_init,
.scan_bus = scan_static_bus,
.enable = 0,
.ops_pci = 0,
};
static struct pci_driver lpc_driver __pci_driver = {
.ops = &vt8231_lpc_ops,
.vendor = PCI_VENDOR_ID_VIA,
.device = PCI_DEVICE_ID_VIA_8231,
};

37
src/southbridge/via/vt8231/vt8231_nic.c Normal file
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@ -0,0 +1,37 @@
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ops.h>
#include <device/pci_ids.h>
#include "vt8231.h"
/*
* Enable the ethernet device and turn off stepping (because it is integrated
* inside the southbridge)
*/
static void nic_init(struct device *dev)
{
uint8_t byte;
printk_debug("Configuring VIA LAN\n");
/* We don't need stepping - though the device supports it */
byte = pci_read_config8(dev, PCI_COMMAND);
byte &= ~PCI_COMMAND_WAIT;
pci_write_config8(dev, PCI_COMMAND, byte);
}
static struct device_operations nic_ops = {
.read_resources = pci_dev_read_resources,
.set_resources = pci_dev_set_resources,
.enable_resources = pci_dev_enable_resources,
.init = nic_init,
.enable = 0,
.ops_pci = 0,
};
static struct pci_driver northbridge_driver __pci_driver = {
.ops = &nic_ops,
.vendor = PCI_VENDOR_ID_VIA,
.device = PCI_DEVICE_ID_VIA_8233_7,
};

52
src/southbridge/via/vt8231/vt8231_usb.c Normal file
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@ -0,0 +1,52 @@
static void usb_on(int enable)
{
unsigned char regval;
/* Base 8231 controller */
device_t dev0 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231, 0);
/* USB controller 1 */
device_t dev2 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_2, 0);
/* USB controller 2 */
device_t dev3 = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C586_2, dev2);
/* enable USB1 */
if(dev2) {
if (enable) {
pci_write_config8(dev2, 0x3c, 0x05);
pci_write_config8(dev2, 0x04, 0x07);
} else {
pci_write_config8(dev2, 0x3c, 0x00);
pci_write_config8(dev2, 0x04, 0x00);
}
}
if(dev0) {
regval = pci_read_config8(dev0, 0x50);
if (enable)
regval &= ~(0x10);
else
regval |= 0x10;
pci_write_config8(dev0, 0x50, regval);
}
/* enable USB2 */
if(dev3) {
if (enable) {
pci_write_config8(dev3, 0x3c, 0x05);
pci_write_config8(dev3, 0x04, 0x07);
} else {
pci_write_config8(dev3, 0x3c, 0x00);
pci_write_config8(dev3, 0x04, 0x00);
}
}
if(dev0) {
regval = pci_read_config8(dev0, 0x50);
if (enable)
regval &= ~(0x20);
else
regval |= 0x20;
pci_write_config8(dev0, 0x50, regval);
}
}

6
targets/via/epia/Config.lb
View File

@ -13,7 +13,8 @@ romimage "normal"
option LINUXBIOS_EXTRA_VERSION=".0Normal"
# payload /usr/share/etherboot/5.1.9pre2-lnxi-lb/tg3--ide_disk.zelf
# payload ../../../../tg3--ide_disk.zelf
payload ../../../../../lnxieepro100.ebi
# payload ../../../../../lnxieepro100.ebi
payload /etc/hosts
end
romimage "fallback"
@ -22,7 +23,8 @@ romimage "fallback"
option LINUXBIOS_EXTRA_VERSION=".0Fallback"
# payload /usr/share/etherboot/5.1.9pre2-lnxi-lb/tg3--ide_disk.zelf
# payload ../../../../tg3--ide_disk.zelf
payload ../../../../../lnxieepro100.ebi
# payload ../../../../../lnxieepro100.ebi
payload /etc/hosts
end
buildrom ./linuxbios.rom ROM_SIZE "normal" "fallback"