/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 Silicon Integrated Systems Corp. (SiS)
* Written by Morgan Tsai <my_tsai@sis.com> for SiS.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include "smbus.h"
#define SMBUS0_IO_BASE 0x8D0
static inline void smbus_delay(void)
{
outb(0x80, 0x80);
}
int smbus_wait_until_ready(unsigned smbus_io_base)
{
unsigned long loops;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
val = inb(smbus_io_base + SMBHSTSTAT);
val &= 0x1f;
if (val == 0) {
return 0;
}
outb(val,smbus_io_base + SMBHSTSTAT);
} while (--loops);
return -2;
}
int smbus_wait_until_done(unsigned smbus_io_base)
{
unsigned long loops;
loops = SMBUS_TIMEOUT;
do {
unsigned char val;
smbus_delay();
val = inb(smbus_io_base + 0x00);
if ( (val & 0xff) != 0x02) {
return 0;
}
} while (--loops);
return -3;
}
int do_smbus_recv_byte(unsigned smbus_io_base, unsigned device)
{
unsigned char global_status_register;
unsigned char byte;
/* set the device I'm talking too */
outb(((device & 0x7f) << 1)|1 , smbus_io_base + SMBXMITADD);
smbus_delay();
/* byte data recv */
outb(0x05, smbus_io_base + SMBHSTPRTCL);
smbus_delay();
/* poll for transaction completion */
if (smbus_wait_until_done(smbus_io_base) < 0) {
return -3;
}
global_status_register = inb(smbus_io_base + SMBHSTSTAT) & 0x80; /* lose check */
/* read results of transaction */
byte = inb(smbus_io_base + SMBHSTCMD);
if (global_status_register != 0x80) { // lose check, otherwise it should be 0
return -1;
}
return byte;
}
int do_smbus_send_byte(unsigned smbus_io_base, unsigned device, unsigned char val)
{
unsigned global_status_register;
outb(val, smbus_io_base + SMBHSTDAT0);
smbus_delay();
/* set the command... */
outb(val, smbus_io_base + SMBHSTCMD);
smbus_delay();
/* set the device I'm talking too */
outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBXMITADD);
smbus_delay();
/* set up for a byte data write */
outb(0x04, smbus_io_base + SMBHSTPRTCL);
smbus_delay();
/* poll for transaction completion */
if (smbus_wait_until_done(smbus_io_base) < 0) {
return -3;
}
global_status_register = inb(smbus_io_base + SMBHSTSTAT) & 0x80; /* lose check */
if (global_status_register != 0x80) {
return -1;
}
return 0;
}
static inline int do_smbus_read_byte(unsigned smbus_io_base, unsigned device, unsigned address)
{
unsigned char global_status_register;
unsigned char byte;
outb(0xff, smbus_io_base + 0x00);
smbus_delay();
outb(0x20, smbus_io_base + 0x03);
smbus_delay();
outb(((device & 0x7f) << 1)|1 , smbus_io_base + 0x04);
smbus_delay();
outb(address & 0xff, smbus_io_base + 0x05);
smbus_delay();
outb(0x12, smbus_io_base + 0x03);
smbus_delay();
int i, j;
for (i = 0;i < 0x1000; i++) {
if (inb(smbus_io_base + 0x00) != 0x08) {
smbus_delay();
for (j=0;j<0xFFFF;j++);
}
}
global_status_register = inb(smbus_io_base + 0x00);
byte = inb(smbus_io_base + 0x08);
if (global_status_register != 0x08) { // lose check, otherwise it should be 0
printk(BIOS_DEBUG, "Fail\r\t");
return -1;
}
printk(BIOS_DEBUG, "Success\r\t");
return byte;
}
static inline int do_smbus_write_byte(unsigned smbus_io_base, unsigned device, unsigned address, unsigned char val)
{
unsigned global_status_register;
outb(val, smbus_io_base + SMBHSTDAT0);
smbus_delay();
/* set the device I'm talking too */
outb(((device & 0x7f) << 1) | 0, smbus_io_base + SMBXMITADD);
smbus_delay();
outb(address & 0xff, smbus_io_base + SMBHSTCMD);
smbus_delay();
/* set up for a byte data write */
outb(0x06, smbus_io_base + SMBHSTPRTCL);
smbus_delay();
/* poll for transaction completion */
if (smbus_wait_until_done(smbus_io_base) < 0) {
return -3;
}
global_status_register = inb(smbus_io_base + SMBHSTSTAT) & 0x80; /* lose check */
if (global_status_register != 0x80) {
return -1;
}
return 0;
}
static const uint8_t SiS_LPC_init[34][3]={
{0x04, 0xF8, 0x07}, //Reg 0x04
{0x45, 0x00, 0x00}, //Reg 0x45 //Enable Rom Flash
{0x46, 0x00, 0x3D}, //Reg 0x46
{0x47, 0x00, 0xDD}, //Reg 0x47
{0x48, 0x00, 0x12}, //Reg 0x48
{0x64, 0x00, 0xFF}, //Reg 0x64
{0x65, 0x00, 0xC1}, //Reg 0x65
{0x68, 0x00, 0x89}, //Reg 0x68 //SB.ASM, START POST
{0x69, 0x00, 0x80}, //Reg 0x69
{0x6B, 0x00, 0x00}, //Reg 0x6B //SBBB.ASM
{0x6C, 0xFF, 0x97}, //Reg 0x6C //SBBB.ASM
{0x6E, 0x00, 0x00}, //Reg 0x6E //SBBB.ASM But in Early Post sets 0x04.
{0x6F, 0xFF, 0x14}, //Reg 0x6F //SBBB.ASM
{0x77, 0x00, 0x0E}, //Reg 0x77 //SBOEM.ASM, EARLY POST
{0x78, 0x00, 0x20}, //Reg 0x78
{0x7B, 0x00, 0x88}, //Reg 0x7B
{0x7F, 0x00, 0x40}, //Reg 0x7F //SBOEM.ASM, EARLY POST
{0xC1, 0x00, 0xF0}, //Reg 0xC1
{0xC2, 0x00, 0x01}, //Reg 0xC2
{0xC3, 0x00, 0x00}, //Reg 0xC3 //NBAGPBB.ASM
{0xC9, 0x00, 0x80}, //Reg 0xC9
{0xCF, 0x00, 0x45}, //Reg 0xCF
{0xD0, 0x00, 0x02}, //Reg 0xD0
{0xD4, 0x00, 0x44}, //Reg 0xD4
{0xD5, 0x00, 0x62}, //Reg 0xD5
{0xD6, 0x00, 0x32}, //Reg 0xD6
{0xD8, 0x00, 0x45}, //Reg 0xD8
{0xDA, 0x00, 0xDA}, //Reg 0xDA
{0xDB, 0x00, 0x61}, //Reg 0xDB
{0xDC, 0x00, 0xAA}, //Reg 0xDC
{0xDD, 0x00, 0xAA}, //Reg 0xDD
{0xDE, 0x00, 0xAA}, //Reg 0xDE
{0xDF, 0x00, 0xAA}, //Reg 0xDF
{0x00, 0x00, 0x00} //End of table
};
static const uint8_t SiS_NBPCIE_init[43][3]={
{0x3D, 0x00, 0x00}, //Reg 0x3D
{0x1C, 0xFE, 0x01}, //Reg 0x1C
{0x1D, 0xFE, 0x01}, //Reg 0x1D
{0x24, 0xFE, 0x01}, //Reg 0x24
{0x26, 0xFE, 0x01}, //Reg 0x26
{0x40, 0xFF, 0x10}, //Reg 0x40
{0x43, 0xFF, 0x78}, //Reg 0x43
{0x44, 0xFF, 0x02}, //Reg 0x44
{0x45, 0xFF, 0x10}, //Reg 0x45
{0x48, 0xFF, 0x52}, //Reg 0x48
{0x49, 0xFF, 0xE3}, //Reg 0x49
{0x5A, 0x00, 0x00}, //Reg 0x4A
{0x4B, 0x00, 0x16}, //Reg 0x4B
{0x4C, 0x00, 0x80}, //Reg 0x4C
{0x4D, 0x00, 0x02}, //Reg 0x4D
{0x4E, 0x00, 0x00}, //Reg 0x4E
{0x5C, 0x00, 0x52}, //Reg 0x5C
{0x5E, 0x00, 0x10}, //Reg 0x5E
{0x34, 0x00, 0xD0}, //Reg 0x34
{0xD0, 0x00, 0x01}, //Reg 0xD0
{0x4F, 0x00, 0x80}, //Reg 0x4F
{0xA1, 0x00, 0xF4}, //Reg 0xA1
{0xA2, 0x7F, 0x00}, //Reg 0xA2
{0xBD, 0x00, 0xA0}, //Reg 0xBD
{0xD1, 0xFF, 0x00}, //Reg 0xD1
{0xD3, 0xFE, 0x01}, //Reg 0xD3
{0xD4, 0x18, 0x20}, //Reg 0xD4
{0xD5, 0xF0, 0x00}, //Reg 0xD5
{0xDD, 0xFF, 0x00}, //Reg 0xDD
{0xDE, 0xEC, 0x10}, //Reg 0xDE
{0xDF, 0xFF, 0x00}, //Reg 0xDF
{0xE0, 0xF7, 0x00}, //Reg 0xE0
{0xE3, 0xEF, 0x10}, //Reg 0xE3
{0xE4, 0x7F, 0x80}, //Reg 0xE4
{0xE5, 0xFF, 0x00}, //Reg 0xE5
{0xE6, 0x06, 0x00}, //Reg 0xE6
{0xE7, 0xFF, 0x00}, //Reg 0xE7
{0xF5, 0x00, 0x00}, //Reg 0xF5
{0xF6, 0x3F, 0x00}, //Reg 0xF6
{0xF7, 0xFF, 0x00}, //Reg 0xF7
{0xFD, 0xFF, 0x00}, //Reg 0xFD
{0x4F, 0x00, 0x00}, //Reg 0x4F
{0x00, 0x00, 0x00} //End of table
};
static const uint8_t SiS_ACPI_init[10][3]={
{0x1B, 0xBF, 0x40}, //Reg 0x1B
{0x84, 0x00, 0x0E}, //Reg 0x84
{0x85, 0x00, 0x29}, //Reg 0x85
{0x86, 0x00, 0xCB}, //Reg 0x86
{0x87, 0x00, 0x55}, //Reg 0x87
{0x6B, 0x00, 0x00}, //Reg 0x6B
{0x6C, 0x68, 0x97}, //Reg 0x6C
{0x6E, 0x00, 0x00}, //Reg 0x6E
{0x6F, 0xFF, 0x14}, //Reg 0x6F
{0x00, 0x00, 0x00} //End of table
};
static const uint8_t SiS_SBPCIE_init[13][3]={
{0x48, 0x00 ,0x07}, //Reg 0x48
{0x49, 0x00 ,0x06}, //Reg 0x49
{0x4A, 0x00 ,0x0C}, //Reg 0x4A
{0x4B, 0x00 ,0x00}, //Reg 0x4B
{0x4E, 0x00 ,0x20}, //Reg 0x4E
{0x1C, 0x00 ,0xF1}, //Reg 0x1C
{0x1D, 0x00 ,0x01}, //Reg 0x1D
{0x24, 0x00 ,0x01}, //Reg 0x24
{0x26, 0x00 ,0x01}, //Reg 0x26
{0xF6, 0x00 ,0x02}, //Reg 0xF6
{0xF7, 0x00 ,0xC8}, //Reg 0xF7
{0x5B, 0x00 ,0x40}, //Reg 0x5B
{0x00, 0x00, 0x00} //End of table
};
static const uint8_t SiS_NB_init[56][3]={
{0x04, 0x00 ,0x07}, //Reg 0x04
{0x05, 0x00 ,0x00}, //Reg 0x05 // alex
{0x0D, 0x00 ,0x20}, //Reg 0x0D
{0x2C, 0x00 ,0x39}, //Reg 0x2C
{0x2D, 0x00 ,0x10}, //Reg 0x2D
{0x2E, 0x00 ,0x61}, //Reg 0x2E
{0x2F, 0x00 ,0x07}, //Reg 0x2F
{0x34, 0x00 ,0xA0}, //Reg 0x34
{0x40, 0x00 ,0x36}, //Reg 0x40
{0x42, 0x00 ,0xB9}, //Reg 0x42
{0x43, 0x00 ,0x8B}, //Reg 0x43
{0x44, 0x00 ,0x05}, //Reg 0x44
{0x45, 0x00 ,0xFF}, //Reg 0x45
{0x46, 0x00 ,0x90}, //Reg 0x46
{0x47, 0x00 ,0xA0}, //Reg 0x47
//{0x4C, 0xFF ,0x09}, //Reg 0x4C // SiS307 enable
{0x4E, 0x00 ,0x00}, //Reg 0x4E
{0x4F, 0x00 ,0x02}, //Reg 0x4F
{0x5B, 0x00 ,0x44}, //Reg 0x5B
{0x5D, 0x00 ,0x00}, //Reg 0x5D
{0x5E, 0x00 ,0x25}, //Reg 0x5E
{0x61, 0x00 ,0xB0}, //Reg 0x61
{0x65, 0x00 ,0xB0}, //Reg 0x65
{0x68, 0x00 ,0x4C}, //Reg 0x68
{0x69, 0x00 ,0xD0}, //Reg 0x69
{0x6B, 0x00 ,0x07}, //Reg 0x6B
{0x6C, 0x00 ,0xDD}, //Reg 0x6C
{0x6D, 0x00 ,0xAD}, //Reg 0x6D
{0x6E, 0x00 ,0xE8}, //Reg 0x6E
{0x6F, 0x00 ,0x4D}, //Reg 0x6F
{0x70, 0x00 ,0x00}, //Reg 0x70
{0x71, 0x00 ,0x80}, //Reg 0x71
{0x72, 0x00 ,0x00}, //Reg 0x72
{0x73, 0x00 ,0x00}, //Reg 0x73
{0x74, 0x00 ,0x01}, //Reg 0x74
{0x75, 0x00 ,0x10}, //Reg 0x75
{0x7E, 0x00 ,0x29}, //Reg 0x7E
{0x8B, 0x00 ,0x10}, //Reg 0x8B
{0x8D, 0x00 ,0x03}, //Reg 0x8D
{0xA1, 0x00 ,0xD0}, //Reg 0xA1
{0xA2, 0x00 ,0x30}, //Reg 0xA2
{0xA4, 0x00 ,0x0B}, //Reg 0xA4
{0xA9, 0x00 ,0x02}, //Reg 0xA9
{0xB0, 0x00 ,0x30}, //Reg 0xB0
{0xB4, 0x00 ,0x30}, //Reg 0xB4
{0x90, 0x00 ,0x00}, //Reg 0x90
{0x91, 0x00 ,0x00}, //Reg 0x91
{0x92, 0x00 ,0x00}, //Reg 0x92
{0x93, 0x00 ,0x00}, //Reg 0x93
{0x94, 0x00 ,0x00}, //Reg 0x94
{0x95, 0x00 ,0x00}, //Reg 0x95
{0x96, 0x00 ,0x00}, //Reg 0x96
{0x97, 0x00 ,0x00}, //Reg 0x97
{0x98, 0x00 ,0x00}, //Reg 0x98
{0x99, 0x00 ,0x00}, //Reg 0x99
{0x00, 0x00, 0x00} //End of table
};
static const uint8_t SiS_NBAGP_init[34][3]={
{0xCF, 0xDF, 0x00}, //HT issue
{0x06, 0xDF, 0x20},
{0x1E, 0xDF, 0x20},
{0x50, 0x00, 0x02},
{0x51, 0x00, 0x00},
{0x54, 0x00, 0x09},
{0x55, 0x00, 0x00},
{0x56, 0x00, 0x80},
{0x58, 0x00, 0x08},
{0x60, 0x00, 0xB1},
{0x61, 0x00, 0x02},
{0x62, 0x00, 0x60},
{0x63, 0x00, 0x60},
{0x64, 0x00, 0xAA},
{0x65, 0x00, 0x18},
{0x68, 0x00, 0x23},
{0x69, 0x00, 0x23},
{0x6A, 0x00, 0xC8},
{0x6B, 0x00, 0x08},
{0x6C, 0x00, 0x00},
{0x6D, 0x00, 0x00},
{0x6E, 0x00, 0x08},
{0x6F, 0x00, 0x00},
{0xBB, 0x00, 0x00},
{0xB5, 0x00, 0x30},
{0xB0, 0x00, 0xDB},
{0xB6, 0x00, 0x73},
{0xB7, 0x00, 0x50},
{0xBA, 0xBF, 0x41},
{0xB4, 0x3F, 0xC0},
{0xBF, 0xF9, 0x06},
{0xBA, 0x00, 0x61},
{0xBD, 0x7F, 0x80},
{0x00, 0x00, 0x00} //End of table
};
static const uint8_t SiS_ACPI_2_init[56][3]={
{0x00, 0x00, 0xFF}, //Reg 0x00
{0x01, 0x00, 0xFF}, //Reg 0x01
{0x02, 0x00, 0x00}, //Reg 0x02
{0x03, 0x00, 0x00}, //Reg 0x03
{0x16, 0x00, 0x00}, //Reg 0x16
{0x20, 0x00, 0xFF}, //Reg 0x20
{0x21, 0x00, 0xFF}, //Reg 0x21
{0x22, 0x00, 0x00}, //Reg 0x22
{0x23, 0x00, 0x00}, //Reg 0x23
{0x24, 0x00, 0x55}, //Reg 0x24
{0x25, 0x00, 0x55}, //Reg 0x25
{0x26, 0x00, 0x55}, //Reg 0x26
{0x27, 0x00, 0x55}, //Reg 0x27
{0x2A, 0x00, 0x40}, //Reg 0x2A
{0x2B, 0x00, 0x10}, //Reg 0x2B
{0x2E, 0x00, 0xFF}, //Reg 0x2E
{0x30, 0x00, 0xFF}, //Reg 0x30
{0x31, 0x00, 0xFF}, //Reg 0x31
{0x32, 0x00, 0x00}, //Reg 0x32
{0x33, 0x00, 0x00}, //Reg 0x33
{0x40, 0x00, 0xFF}, //Reg 0x40
{0x41, 0x00, 0xFF}, //Reg 0x41
{0x42, 0x00, 0x00}, //Reg 0x42
{0x43, 0x00, 0x00}, //Reg 0x43
{0x4A, 0x00, 0x00}, //Reg 0x4A
{0x4E, 0x00, 0x0F}, //Reg 0x4E
{0x5A, 0x00, 0x00}, //Reg 0x5A
{0x5B, 0x00, 0x00}, //Reg 0x5B
{0x62, 0x00, 0x00}, //Reg 0x62
{0x63, 0x00, 0x04}, //Reg 0x63
{0x68, 0x00, 0xFF}, //Reg 0x68
{0x76, 0x00, 0xA0}, //Reg 0x76
{0x77, 0x00, 0x22}, //Reg 0x77
{0x78, 0xDF, 0x20}, //Reg 0x78
{0x7A, 0x00, 0x10}, //Reg 0x7A
{0x7C, 0x00, 0x45}, //Reg 0x7C
{0x7D, 0x00, 0xB8}, //Reg 0x7D
{0x7F, 0x00, 0x00}, //Reg 0x7F
{0x80, 0x00, 0x1C}, //Reg 0x80
{0x82, 0x00, 0x01}, //Reg 0x82
{0x84, 0x00, 0x0E}, //Reg 0x84
{0x85, 0x00, 0x29}, //Reg 0x85
{0x86, 0x00, 0xCB}, //Reg 0x86
{0x87, 0x00, 0x55}, //Reg 0x87
{0x88, 0x00, 0x04}, //Reg 0x88
{0x96, 0x00, 0x80}, //Reg 0x96
{0x99, 0x00, 0x80}, //Reg 0x99
{0x9A, 0x00, 0x15}, //Reg 0x9A
{0x9D, 0x00, 0x05}, //Reg 0x9D
{0x9E, 0x00, 0x00}, //Reg 0x9E
{0x9F, 0x00, 0x04}, //Reg 0x9F
{0xB0, 0x00, 0x6D}, //Reg 0xB0
{0xB1, 0x00, 0x8C}, //Reg 0xB1
{0xB9, 0x00, 0xFF}, //Reg 0xB9
{0xBA, 0x00, 0x3F}, //Reg 0xBA
{0x00, 0x00, 0x00} //End of table
};
static const uint8_t SiS_SiS1183_init[44][3]={
{0x04, 0x00, 0x05},
{0x09, 0x00, 0x05},
{0x2C, 0x00, 0x39},
{0x2D, 0x00, 0x10},
{0x2E, 0x00, 0x83},
{0x2F, 0x00, 0x11},
{0x90, 0x00, 0x40},
{0x91, 0x00, 0x00}, // set mode
{0x50, 0x00, 0xA2},
{0x52, 0x00, 0xA2},
{0x55, 0x00, 0x96},
{0x52, 0x00, 0xA2},
{0x55, 0xF7, 0x00},
{0x56, 0x00, 0xC0},
{0x57, 0x00, 0x14},
{0x67, 0x00, 0x28},
{0x81, 0x00, 0xB3},
{0x82, 0x00, 0x72},
{0x83, 0x00, 0x40},
{0x85, 0x00, 0xB3},
{0x86, 0x00, 0x72},
{0x87, 0x00, 0x40},
{0x88, 0x00, 0xDE}, // after set mode
{0x89, 0x00, 0xB3},
{0x8A, 0x00, 0x72},
{0x8B, 0x00, 0x40},
{0x8C, 0x00, 0xDE},
{0x8D, 0x00, 0xB3},
{0x8E, 0x00, 0x92},
{0x8F, 0x00, 0x40},
{0x93, 0x00, 0x00},
{0x94, 0x00, 0x80},
{0x95, 0x00, 0x08},
{0x96, 0x00, 0x80},
{0x97, 0x00, 0x08},
{0x9C, 0x00, 0x80},
{0x9D, 0x00, 0x08},
{0x9E, 0x00, 0x80},
{0x9F, 0x00, 0x08},
{0xA0, 0x00, 0x15},
{0xA1, 0x00, 0x15},
{0xA2, 0x00, 0x15},
{0xA3, 0x00, 0x15},
{0x00, 0x00, 0x00} //End of table
};
/* In => Share Memory size
* => 00h : 0MBytes
* => 02h : 32MBytes
* => 03h : 64MBytes
* => 03h : 64MBytes
* => 04h : 128MBytes
* => Others: Reserved
*/
static void Init_Share_Memory(uint8_t ShareSize)
{
pci_devfn_t dev;
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS,
PCI_DEVICE_ID_SIS_SIS761), 0);
pci_write_config8(dev, 0x4C, (pci_read_config8(dev, 0x4C) & 0x1F) |
(ShareSize << 5));
}
/* In: => Aperture size
* => 00h : 32MBytes
* => 01h : 64MBytes
* => 02h : 128MBytes
* => 03h : 256MBytes
* => 04h : 512MBytes
* => Others: Reserved
*/
static void Init_Aper_Size(uint8_t AperSize)
{
pci_devfn_t dev;
uint16_t SiSAperSizeTable[]={0x0F38, 0x0F30, 0x0F20, 0x0F00, 0x0E00};
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_AMD, 0x1103), 0);
pci_write_config8(dev, 0x90, AperSize << 1);
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS761), 0);
pci_write_config16(dev, 0xB4, SiSAperSizeTable[AperSize]);
}
static void sis_init_stage1(void)
{
pci_devfn_t dev;
uint8_t temp8;
int i;
uint8_t GUI_En;
// SiS_Chipset_Initialization
// ========================== NB =============================
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS761), 0);
i=0;
while (SiS_NB_init[i][0] != 0) {
temp8 = pci_read_config8(dev, SiS_NB_init[i][0]);
temp8 &= SiS_NB_init[i][1];
temp8 |= SiS_NB_init[i][2];
pci_write_config8(dev, SiS_NB_init[i][0], temp8);
i++;
};
// ========================== LPC =============================
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS966_LPC), 0);
i=0;
while (SiS_LPC_init[i][0] != 0) {
temp8 = pci_read_config8(dev, SiS_LPC_init[i][0]);
temp8 &= SiS_LPC_init[i][1];
temp8 |= SiS_LPC_init[i][2];
pci_write_config8(dev, SiS_LPC_init[i][0], temp8);
i++;
};
// ========================== ACPI =============================
i=0;
while (SiS_ACPI_init[i][0] != 0) {
temp8 = inb(0x800 + SiS_ACPI_init[i][0]);
temp8 &= SiS_ACPI_init[i][1];
temp8 |= SiS_ACPI_init[i][2];
outb(temp8, 0x800 + SiS_ACPI_init[i][0]);
i++;
};
// ========================== NBPCIE =============================
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS761), 0); //Disable Internal GUI enable bit
temp8 = pci_read_config8(dev, 0x4C);
GUI_En = temp8 & 0x10;
pci_write_config8(dev, 0x4C, temp8 & (~0x10));
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS761_PCIE), 0);
i=0;
while (SiS_NBPCIE_init[i][0] != 0) {
temp8 = pci_read_config8(dev, SiS_NBPCIE_init[i][0]);
temp8 &= SiS_NBPCIE_init[i][1];
temp8 |= SiS_NBPCIE_init[i][2];
pci_write_config8(dev, SiS_NBPCIE_init[i][0], temp8);
i++;
};
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS761), 0); //Restore Internal GUI enable bit
temp8 = pci_read_config8(dev, 0x4C);
pci_write_config8(dev, 0x4C, temp8 | GUI_En);
return;
}
static void sis_init_stage2(void)
{
pci_devfn_t dev;
msr_t msr;
int i;
uint8_t temp8;
uint16_t temp16;
// ========================== NB_AGP =============================
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS761), 0); //Enable Internal GUI enable bit
pci_write_config8(dev, 0x4C, pci_read_config8(dev, 0x4C) | 0x10);
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_AGP), 0);
i=0;
while (SiS_NBAGP_init[i][0] != 0) {
temp8 = pci_read_config8(dev, SiS_NBAGP_init[i][0]);
temp8 &= SiS_NBAGP_init[i][1];
temp8 |= SiS_NBAGP_init[i][2];
pci_write_config8(dev, SiS_NBAGP_init[i][0], temp8);
i++;
};
/**
* Share Memory size
* => 00h : 0MBytes
* => 02h : 32MBytes
* => 03h : 64MBytes
* => 04h : 128MBytes
* => Others: Reserved
*
* Aperture size
* => 00h : 32MBytes
* => 01h : 64MBytes
* => 02h : 128MBytes
* => 03h : 256MBytes
* => 04h : 512MBytes
* => Others: Reserved
*/
Init_Share_Memory(0x02); //0x02 : 32M
Init_Aper_Size(0x01); //0x1 : 64M
// ========================== NB =============================
printk(BIOS_DEBUG, "Init NorthBridge sis761 -------->\n");
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS761), 0);
msr = rdmsr(0xC001001A);
printk(BIOS_DEBUG, "Memory Top Bound %x\n",msr.lo );
temp16=(pci_read_config8(dev, 0x4C) & 0xE0) >> 5;
temp16=0x0001<<(temp16-1);
temp16<<=8;
printk(BIOS_DEBUG, "Integrated VGA Shared memory size=%dM bytes\n", temp16 >> 4);
pci_write_config16(dev, 0x8E, (msr.lo >> 16) -temp16*1);
pci_write_config8(dev, 0x7F, 0x08); // ACPI Base
outb(inb(0x856) | 0x40, 0x856); // Auto-Reset Function
// ========================== ACPI =============================
i=0;
printk(BIOS_DEBUG, "Init ACPI -------->\n");
do {
temp8 = inb(0x800 + SiS_ACPI_2_init[i][0]);
temp8 &= SiS_ACPI_2_init[i][1];
temp8 |= SiS_ACPI_2_init[i][2];
outb(temp8, 0x800 + SiS_ACPI_2_init[i][0]);
i++;
} while (SiS_ACPI_2_init[i][0] != 0);
// ========================== Misc =============================
printk(BIOS_DEBUG, "Init Misc -------->\n");
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS966_LPC), 0);
/* R77h Internal PCI Device Enable 1 (Power On Value = 0h)
* bit5 : USB Emulation (1=enable)
* bit3 : Internal Keyboard Controller Port Access Control enable (1=enable)
* bit2 : Reserved
* bit1 : Mask USB A20M# Event (1:K8, 0:P4/K7)
*/
pci_write_config8(dev, 0x77, 0x2E);
/* R7Ch Internal PCI Device Enable 2 (Power On Value = 0h)
* bit4 : SATA Controller Enable (0=enable)
* bit3 : IDE Controller Enable (0=enable)
* bit2 : MAC Controller Enable (0=enable)
* bit1 : MODEM Controller Enable (1=disable)
* bit0 : AC97 Controller Enable (1=disable)
*/
pci_write_config8(dev, 0x7C, 0x03);
/* R7Eh Enable Azalia (Power On Value = 08h)
* bit3 : Azalia Controller Enable (0=enable)
*/
pci_write_config8(dev, 0x7E, 0x00); // azalia controller enable
temp8=inb(0x878)|0x4; //bit2=1 enable Azalia =0 enable AC97
outb(temp8, 0x878); // ACPI select AC97 or HDA controller
printk(BIOS_DEBUG, "Audio select %x\n",inb(0x878));
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS966_SATA), 0);
if (!dev)
printk(BIOS_DEBUG, "SiS 1183 does not exist !!");
// SATA Set Mode
pci_write_config8(dev, 0x90, (pci_read_config8(dev, 0x90)&0x3F) | 0x40);
}
static void enable_smbus(void)
{
pci_devfn_t dev;
uint8_t temp8;
printk(BIOS_DEBUG, "enable_smbus -------->\n");
dev = pci_locate_device(PCI_ID(PCI_VENDOR_ID_SIS, PCI_DEVICE_ID_SIS_SIS966_LPC), 0);
/* set smbus iobase && enable ACPI Space*/
pci_write_config16(dev, 0x74, 0x0800); // Set ACPI Base
temp8=pci_read_config8(dev, 0x40); // Enable ACPI Space
pci_write_config8(dev, 0x40, temp8 | 0x80);
temp8=pci_read_config8(dev, 0x76); // Enable SMBUS
pci_write_config8(dev, 0x76, temp8 | 0x03);
printk(BIOS_DEBUG, "enable_smbus <--------\n");
}
int smbus_read_byte(unsigned device, unsigned address)
{
return do_smbus_read_byte(SMBUS0_IO_BASE, device, address);
}
int smbus_write_byte(unsigned device, unsigned address, unsigned char val)
{
return do_smbus_write_byte(SMBUS0_IO_BASE, device, address, val);
}