/* set thermal config
*/
static void set_thermal_config(void)
{
u8 byte;
u16 word;
device_t sm_dev;
/* set ADT 7461 */
ADT7461_write_byte(0x0B, 0x50); /* Local Temperature Hight limit */
ADT7461_write_byte(0x0C, 0x00); /* Local Temperature Low limit */
ADT7461_write_byte(0x0D, 0x50); /* External Temperature Hight limit High Byte */
ADT7461_write_byte(0x0E, 0x00); /* External Temperature Low limit High Byte */
ADT7461_write_byte(0x19, 0x55); /* External THERM limit */
ADT7461_write_byte(0x20, 0x55); /* Local THERM limit */
byte = ADT7461_read_byte(0x02); /* read status register to clear it */
ARA_read_byte(0x05); /* A hardware alert can only be cleared by the master sending an ARA as a read command */
printk(BIOS_INFO, "Init adt7461 end , status 0x02 %02x\n", byte);
/* sb600 settings for thermal config */
/* set SB600 GPIO 64 to GPIO with pull-up */
byte = pm2_ioread(0x42);
byte &= 0x3f;
pm2_iowrite(0x42, byte);
/* set GPIO 64 to input */
sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
word = pci_read_config16(sm_dev, 0x56);
word |= 1 << 7;
pci_write_config16(sm_dev, 0x56, word);
/* set GPIO 64 internal pull-up */
byte = pm2_ioread(0xf0);
byte &= 0xee;
pm2_iowrite(0xf0, byte);
/* set Talert to be active low */
byte = pm_ioread(0x67);
byte &= ~(1 << 5);
pm_iowrite(0x67, byte);
/* set Talert to generate ACPI event */
byte = pm_ioread(0x3c);
byte &= 0xf3;
pm_iowrite(0x3c, byte);
/* THERMTRIP pin */
/* byte = pm_ioread(0x68);
* byte |= 1 << 3;
* pm_iowrite(0x68, byte);
*
* byte = pm_ioread(0x55);
* byte |= 1 << 0;
* pm_iowrite(0x55, byte);
*
* byte = pm_ioread(0x67);
* byte &= ~( 1 << 6);
* pm_iowrite(0x67, byte);
*/
}
void init_sb800_MANUAL_fans(struct device *dev)
{
int i;
struct southbridge_amd_cimx_sb800_config *sb_chip =
(struct southbridge_amd_cimx_sb800_config *)(dev->chip_info);
/* Init Fan 0 */
if (sb_chip->fan0_enabled)
for (i = 0; i < FAN_REGISTER_COUNT; i++)
pm2_iowrite(FAN_0_OFFSET + i, sb_chip->fan0_config_vals[i]);
/* Init Fan 1 */
if (sb_chip->fan1_enabled)
for (i = 0; i < FAN_REGISTER_COUNT; i++)
pm2_iowrite(FAN_1_OFFSET + i, sb_chip->fan1_config_vals[i]);
/* Init Fan 2 */
if (sb_chip->fan2_enabled)
for (i = 0; i < FAN_REGISTER_COUNT; i++)
pm2_iowrite(FAN_2_OFFSET + i, sb_chip->fan2_config_vals[i]);
/* Init Fan 3 */
if (sb_chip->fan3_enabled)
for (i = 0; i < FAN_REGISTER_COUNT; i++)
pm2_iowrite(FAN_3_OFFSET + i, sb_chip->fan3_config_vals[i]);
/* Init Fan 4 */
if (sb_chip->fan4_enabled)
for (i = 0; i < FAN_REGISTER_COUNT; i++)
pm2_iowrite(FAN_4_OFFSET + i, sb_chip->fan4_config_vals[i]);
}
/*
* set gpio40 gfx
*/
static void set_gpio40_gfx(void)
{
u8 byte;
// u16 word;
u32 dword;
device_t sm_dev;
/* disable the GPIO40 as CLKREQ2# function */
byte = pm_ioread(0xd3);
byte &= ~(1 << 7);
pm_iowrite(0xd3, byte);
/* disable the GPIO40 as CLKREQ3# function */
byte = pm_ioread(0xd4);
byte &= ~(1 << 0);
pm_iowrite(0xd4, byte);
/* enable pull up for GPIO68 */
byte = pm2_ioread(0xf1);
byte &= ~(1 << 4);
pm2_iowrite(0xf1, byte);
/* access the smbus extended register */
sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
/*if the dev3 is present, set the gfx to 2x8 lanes*/
/*otherwise set the gfx to 1x16 lanes*/
if(is_dev3_present()){
printk(BIOS_INFO, "Dev3 is present. GFX Configuration is Two x8 slots\n");
/* when the gpio40 is configured as GPIO, this will enable the output */
pci_write_config32(sm_dev, 0xf8, 0x4);
dword = pci_read_config32(sm_dev, 0xfc);
dword &= ~(1 << 10);
/* When the gpio40 is configured as GPIO, this will represent the output value*/
/* 1 :enable two x8 , 0 : master slot enable only */
dword |= (1 << 26);
pci_write_config32(sm_dev, 0xfc, dword);
}else{
printk(BIOS_INFO, "Dev3 is not present. GFX Configuration is One x16 slot\n");
/* when the gpio40 is configured as GPIO, this will enable the output */
pci_write_config32(sm_dev, 0xf8, 0x4);
dword = pci_read_config32(sm_dev, 0xfc);
dword &= ~(1 << 10);
/* When the gpio40 is configured as GPIO, this will represent the output value*/
/* 1 :enable two x8 , 0 : master slot enable only */
dword &= ~(1 << 26);
pci_write_config32(sm_dev, 0xfc, dword);
}
}
/*
* set gpio40 gfx
*/
static void set_gpio40_gfx(void)
{
u8 byte;
// u16 word;
u32 dword;
struct device *sm_dev;
/* disable the GPIO40 as CLKREQ2# function */
byte = pm_ioread(0xd3);
byte &= ~(1 << 7);
pm_iowrite(0xd3, byte);
/* disable the GPIO40 as CLKREQ3# function */
byte = pm_ioread(0xd4);
byte &= ~(1 << 0);
pm_iowrite(0xd4, byte);
/* enable pull up for GPIO68 */
byte = pm2_ioread(0xf1);
byte &= ~(1 << 4);
pm2_iowrite(0xf1, byte);
/* access the smbus extended register */
sm_dev = pcidev_on_root(0x14, 0);
/* set the gfx to 1x16 lanes */
printk(BIOS_INFO, "Dev3 is not present. GFX Configuration is One x16 slot\n");
/* when the gpio40 is configured as GPIO, this will enable the output */
pci_write_config32(sm_dev, 0xf8, 0x4);
dword = pci_read_config32(sm_dev, 0xfc);
dword &= ~(1 << 10);
/* When the gpio40 is configured as GPIO, this will represent the output value*/
/* 1 :enable two x8 , 0 : master slot enable only */
dword &= ~(1 << 26);
pci_write_config32(sm_dev, 0xfc, dword);
}
/*
* set thermal config
*/
static void set_thermal_config(void)
{
u8 byte, byte2;
u16 word;
u32 dword;
device_t sm_dev;
/* set adt7475 */
ADT7475_write_byte(0x40, 0x04);
/* Config Register 6 */
ADT7475_write_byte(0x10, 0x00);
/* Config Register 7 */
ADT7475_write_byte(0x11, 0x00);
/* set Offset 64 format, enable THERM on Remote 1& Remote 2 */
ADT7475_write_byte(0x7c, 0xa0);
/* No offset for remote 2 */
ADT7475_write_byte(0x72, 0x00);
/* PWM 1 configuration register CPU fan controlled by CPU Thermal Diode */
ADT7475_write_byte(0x5c, 0x02);
/* PWM 3 configuration register Case fan controlled by 690 temp */
ADT7475_write_byte(0x5e, 0x42);
/* remote 1 low temp limit */
ADT7475_write_byte(0x4e, 0x00);
/* remote 1 High temp limit (90C) */
ADT7475_write_byte(0x4f, 0x9a);
/* remote2 Low Temp Limit */
ADT7475_write_byte(0x52, 0x00);
/* remote2 High Limit (90C) */
ADT7475_write_byte(0x53, 0x9a);
/* remote 1 therm temp limit (95C) */
ADT7475_write_byte(0x6a, 0x9f);
/* remote 2 therm temp limit (95C) */
ADT7475_write_byte(0x6c, 0x9f);
/* PWM 1 minimum duty cycle (37%) */
ADT7475_write_byte(0x64, 0x60);
/* PWM 1 Maximum duty cycle (100%) */
ADT7475_write_byte(0x38, 0xff);
/* PWM 3 minimum duty cycle (37%) */
ADT7475_write_byte(0x66, 0x60);
/* PWM 3 Maximum Duty Cycle (100%) */
ADT7475_write_byte(0x3a, 0xff);
/* Remote 1 temperature Tmin (32C) */
ADT7475_write_byte(0x67, 0x60);
/* Remote 2 temperature Tmin (32C) */
ADT7475_write_byte(0x69, 0x60);
/* remote 1 Trange (53C ramp range) */
ADT7475_write_byte(0x5f, 0xe8);
/* remote 2 Trange (53C ramp range) */
ADT7475_write_byte(0x61, 0xe8);
/* PWM2 Duty cycle */
ADT7475_write_byte(0x65, 0x00);
/* PWM2 Disabled */
ADT7475_write_byte(0x5d, 0x80);
/* PWM2 Max Duty Cycle */
ADT7475_write_byte(0x39, 0x00);
/* Config Register 3 - enable smbalert & therm */
ADT7475_write_byte(0x78, 0x03);
/* Config Register 4 - enable therm output */
ADT7475_write_byte(0x7d, 0x09);
/* Interrupt Mask Register 2 - Mask SMB alert for Therm Conditions, Fan 2 fault, SmbAlert Fan for Therm Timer event */
ADT7475_write_byte(0x75, 0x2a);
/* Config Register 1 Set Start bit */
ADT7475_write_byte(0x40, 0x05);
/* Read status register to clear any old errors */
byte2 = ADT7475_read_byte(0x42);
byte = ADT7475_read_byte(0x41);
/* remote 1 temperature offset */
ADT7475_write_byte(0x70, 0x00);
printk(BIOS_INFO, "Init adt7475 end , status 0x42 %02x, status 0x41 %02x\n",
byte2, byte);
/* sb600 setting for thermal config. Set SB600 GPM5 to trigger ACPI event */
/* set GPM5 as GPM5, not DDR3_memory disable */
byte = pm_ioread(0x8f);
byte |= 1 << 6; /* enable GPE */
pm_iowrite(0x8f, byte);
/* GPM5 as GPIO not USB OC */
sm_dev = dev_find_slot(0, PCI_DEVFN(0x14, 0));
dword = pci_read_config32(sm_dev, 0x64);
dword |= 1 << 19;
pci_write_config32(sm_dev, 0x64, dword);
/* Enable Client Management Index/Data registers */
dword = pci_read_config32(sm_dev, 0x78);
dword |= 1 << 11; /* Cms_enable */
pci_write_config32(sm_dev, 0x78, dword);
/* MiscfuncEnable */
byte = pci_read_config8(sm_dev, 0x41);
byte |= (1 << 5);
pci_write_config8(sm_dev, 0x41, byte);
/* set GPM5 as input */
/* set index register 0C50h to 13h (miscellaneous control) */
outb(0x13, 0xC50); /* CMIndex */
/* set CM data register 0C51h bits [7:6] to 01b to set Input/Out control */
byte = inb(0xC51); /* CMData */
byte &= 0x3f;
byte |= 1 << 6;
outb(byte, 0xC51);
/* set GPM port 0C52h bit 5 to 1 to tri-state the GPM port */
byte = inb(0xc52); /* GpmPort */
byte |= 1 << 5;
outb(byte, 0xc52);
/* set CM data register 0C51h bits [7:6] to 00b to set GPM port for read */
byte = inb(0xc51);
byte &= 0x3f;
outb(byte, 0xc51);
/* trigger SCI/SMI */
byte = pm_ioread(0x34);
byte &= 0xcf;
pm_iowrite(0x34, byte);
/* set GPM5 to not wake from s5 */
byte = pm_ioread(0x77);
byte &= ~(1 << 5);
pm_iowrite(0x77, byte);
/* trigger on falling edge */
byte = pm_ioread(0x38);
byte &= ~(1 << 2);
pm_iowrite(0x38, byte);
/* set SB600 GPIO 64 to GPIO with pull-up */
byte = pm2_ioread(0x42);
byte &= 0x3f;
pm2_iowrite(0x42, byte);
/* set GPIO 64 to input */
word = pci_read_config16(sm_dev, 0x56);
word |= 1 << 7;
pci_write_config16(sm_dev, 0x56, word);
/* set GPIO 64 internal pull-up */
byte = pm2_ioread(0xf0);
byte &= 0xee;
pm2_iowrite(0xf0, byte);
/* set Talert to be active low */
byte = pm_ioread(0x67);
byte &= ~(1 << 5);
pm_iowrite(0x67, byte);
/* set Talert to generate ACPI event */
byte = pm_ioread(0x3c);
byte &= 0xf3;
pm_iowrite(0x3c, byte);
/* THERMTRIP pin */
/* byte = pm_ioread(0x68);
* byte |= 1 << 3;
* pm_iowrite(0x68, byte);
*
* byte = pm_ioread(0x55);
* byte |= 1 << 0;
* pm_iowrite(0x55, byte);
*
* byte = pm_ioread(0x67);
* byte &= ~( 1 << 6);
* pm_iowrite(0x67, byte);
*/
}
/*
* SB700 enables all USB controllers by default in SMBUS Control.
* SB700 enables SATA by default in SMBUS Control.
*/
static void sm_init(device_t dev)
{
u8 byte;
u8 byte_old;
u8 rev;
u32 dword;
void *ioapic_base;
uint32_t power_state;
uint32_t enable_legacy_usb;
u32 nmi_option;
printk(BIOS_INFO, "sm_init().\n");
rev = get_sb700_revision(dev);
/* This works in a similar fashion to a memory resource, but without an enable bit */
ioapic_base = (void *)(pci_read_config32(dev, 0x74) & (0xffffffe0));
setup_ioapic(ioapic_base, 0); /* Don't rename IOAPIC ID. */
enable_legacy_usb = 1;
get_option(&enable_legacy_usb, "enable_legacy_usb");
/* 2.10 Interrupt Routing/Filtering */
byte = pci_read_config8(dev, 0x62);
if (enable_legacy_usb)
byte |= 0x3;
else
byte &= ~0x3;
pci_write_config8(dev, 0x62, byte);
byte = pci_read_config8(dev, 0x67);
if (enable_legacy_usb)
byte |= 0x1 << 7;
else
byte &= ~(0x1 << 7);
pci_write_config8(dev, 0x67, byte);
/* Delay back to back interrupts to the CPU. */
dword = pci_read_config16(dev, 0x64);
dword |= 1 << 13;
pci_write_config16(dev, 0x64, dword);
/* rrg:K8 INTR Enable (BIOS should set this bit after PIC initialization) */
/* rpr 2.1 Enabling Legacy Interrupt */
dword = pci_read_config8(dev, 0x62);
dword |= 1 << 2;
pci_write_config8(dev, 0x62, dword);
dword = pci_read_config32(dev, 0x78);
dword |= 1 << 9;
pci_write_config32(dev, 0x78, dword); /* enable 0xCD6 0xCD7 */
/* bit 10: MultiMediaTimerIrqEn */
dword = pci_read_config8(dev, 0x64);
dword |= 1 << 10;
pci_write_config8(dev, 0x64, dword);
/* enable serial irq */
byte = pci_read_config8(dev, 0x69);
byte |= 1 << 7; /* enable serial irq function */
byte &= ~(0xF << 2);
byte |= 4 << 2; /* set NumSerIrqBits=4 */
pci_write_config8(dev, 0x69, byte);
/* Sx State Settings
* Note: These 2 registers need to be set correctly for the S-state
* to work properly. Otherwise the system may hang during resume
* from the S-state.
*/
/*Use 8us clock for delays in the S-state resume timing sequence.*/
byte = pm_ioread(0x65);
byte &= ~(1 << 7);
pm_iowrite(0x65, byte);
/* Delay the APIC interrupt to the CPU until the system has fully resumed from the S-state. */
byte = pm_ioread(0x68);
byte |= 1 << 2;
pm_iowrite(0x68, byte);
/* IRQ0From8254 */
byte = pci_read_config8(dev, 0x41);
byte &= ~(1 << 7);
pci_write_config8(dev, 0x41, byte);
byte = pm_ioread(0x61);
if (IS_ENABLED(CONFIG_CPU_AMD_MODEL_10XXX))
byte &= ~(1 << 1); /* Clear for non-K8 CPUs */
else
byte |= 1 << 1; /* Set to enable NB/SB handshake during IOAPIC interrupt for AMD K8/K7 */
pm_iowrite(0x61, byte);
/* disable SMI */
byte = pm_ioread(0x53);
byte |= 1 << 3;
pm_iowrite(0x53, byte);
/* power after power fail */
power_state = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
get_option(&power_state, "power_on_after_fail");
if (power_state > 2) {
printk(BIOS_WARNING, "Invalid power_on_after_fail setting, using default\n");
power_state = CONFIG_MAINBOARD_POWER_ON_AFTER_POWER_FAIL;
}
byte = pm_ioread(0x74);
byte &= ~0x03;
if (power_state == POWER_MODE_OFF)
byte |= 0x0;
else if (power_state == POWER_MODE_ON)
byte |= 0x1;
else if (power_state == POWER_MODE_LAST)
byte |= 0x2;
byte |= 1 << 2;
pm_iowrite(0x74, byte);
printk(BIOS_INFO, "set power \"%s\" after power fail\n", power_mode_names[power_state]);
byte = pm_ioread(0x68);
byte &= ~(1 << 1);
/* 2.7 */
byte |= 1 << 2;
pm_iowrite(0x68, byte);
/* 2.7 */
byte = pm_ioread(0x65);
byte &= ~(1 << 7);
pm_iowrite(0x65, byte);
/* 2.16 */
byte = pm_ioread(0x55);
byte |= 1 << 5;
pm_iowrite(0x55, byte);
byte = pm_ioread(0xD7);
byte |= 1 << 6 | 1 << 1;
pm_iowrite(0xD7, byte);
/* 2.15 */
byte = pm_ioread(0x42);
byte &= ~(1 << 2);
pm_iowrite(0x42, byte);
/* Set up NMI on errors */
byte = inb(0x70); /* RTC70 */
byte_old = byte;
nmi_option = NMI_OFF;
get_option(&nmi_option, "nmi");
if (nmi_option) {
byte &= ~(1 << 7); /* set NMI */
printk(BIOS_INFO, "++++++++++set NMI+++++\n");
} else {
byte |= (1 << 7); /* Can not mask NMI from PCI-E and NMI_NOW */
printk(BIOS_INFO, "++++++++++no set NMI+++++\n");
}
byte &= ~(1 << 7);
if (byte != byte_old) {
outb(byte, 0x70);
}
/*rpr v2.13 2.22 SMBUS PCI Config */
byte = pci_read_config8(dev, 0xE1);
if ((REV_SB700_A11 == rev) || REV_SB700_A12 == rev) {
byte |= 1 << 0;
}
/*Set bit2 to 1, enable Io port 60h read/write SMi trapping and
*Io port 64h write Smi trapping. conflict with ps2 keyboard
*/
//byte |= 1 << 2 | 1 << 3 | 1 << 4;
byte |= 1 << 3 | 1 << 4;
pci_write_config8(dev, 0xE1, byte);
/* 2.5 Enabling Non-Posted Memory Write */
axindxc_reg(0x10, 1 << 9, 1 << 9);
/* 2.11 IO Trap Settings */
abcfg_reg(0x10090, 1 << 16, 1 << 16);
/* ab index */
pci_write_config32(dev, 0xF0, AB_INDX);
/* Initialize the real time clock */
cmos_init(0);
/* 4.3 Enabling Upstream DMA Access */
axcfg_reg(0x04, 1 << 2, 1 << 2);
/* 4.4 Enabling IDE/PCIB Prefetch for Performance Enhancement */
abcfg_reg(0x10060, 9 << 17, 9 << 17);
abcfg_reg(0x10064, 9 << 17, 9 << 17);
/* 4.5 Enabling OHCI Prefetch for Performance Enhancement, A12 */
abcfg_reg(0x80, 1 << 0, 1<< 0);
/* 4.6 B-Link Client's Credit Variable Settings for the Downstream Arbitration Equation */
/* 4.7 Enabling Additional Address Bits Checking in Downstream */
/* 4.16 IO write and SMI ordering enhancement*/
abcfg_reg(0x9c, 3 << 0, 3 << 0);
if (REV_SB700_A12 == rev) {
abcfg_reg(0x9c, 1 << 8, 1 << 8);
} else if (rev >= REV_SB700_A14) {
abcfg_reg(0x9c, 1 << 8, 0 << 8);
}
if (REV_SB700_A15 == rev) {
abcfg_reg(0x90, 1 << 21, 1 << 21);
abcfg_reg(0x9c, 1 << 5 | 1 << 9 | 1 << 15, 1 << 5 | 1 << 9 | 1 << 15);
}
/* 4.8 Set B-Link Prefetch Mode */
abcfg_reg(0x80, 3 << 17, 3 << 17);
/* 4.9 Enabling Detection of Upstream Interrupts */
abcfg_reg(0x94, 1 << 20 | 0x7FFFF, 1 << 20 | 0x00FEE);
/* 4.10: Enabling Downstream Posted Transactions to Pass Non-Posted
* Transactions for the K8 Platform (for All Revisions) */
abcfg_reg(0x10090, 1 << 8, 1 << 8);
/* Set ACPI Software clock Throttling Period to 244 us*/
byte = pm_ioread(0x68);
byte &= ~(3 << 6);
byte |= (2 << 6); /* 244us */
pm_iowrite(0x68, byte);
if (REV_SB700_A15 == rev) {
u16 word;
/* rpr v2.13 4.18 Enabling Posted Pass Non-Posted Downstream */
axindxc_reg(0x02, 1 << 9, 1 << 9);
abcfg_reg(0x9C, 0x00007CC0, 0x00007CC0);
abcfg_reg(0x1009C, 0x00000030, 0x00000030);
abcfg_reg(0x10090, 0x00001E00, 0x00001E00);
/* rpr v2.13 4.19 Enabling Posted Pass Non-Posted Upstream */
abcfg_reg(0x58, 0x0000F800, 0x0000E800);
/* rpr v2.13 4.20 64 bit Non-Posted Memory Write Support */
axindxc_reg(0x02, 1 << 10, 1 << 10);
/* rpr v2.13 2.38 Unconditional Shutdown */
byte = pci_read_config8(dev, 0x43);
byte &= ~(1 << 3);
pci_write_config8(dev, 0x43, byte);
word = pci_read_config16(dev, 0x38);
word |= 1 << 12;
pci_write_config16(dev, 0x38, word);
byte |= 1 << 3;
pci_write_config8(dev, 0x43, byte);
/* Enable southbridge MMIO decode */
dword = pci_read_config32(dev, SB_MMIO_CFG_REG);
dword &= ~(0xffffff << 8);
dword |= SB_MMIO_BASE_ADDRESS;
dword |= 0x1;
pci_write_config32(dev, SB_MMIO_CFG_REG, dword);
}
byte = pci_read_config8(dev, 0xAE);
if (IS_ENABLED(CONFIG_ENABLE_APIC_EXT_ID))
byte |= 1 << 4;
byte |= 1 << 5; /* ACPI_DISABLE_TIMER_IRQ_ENHANCEMENT_FOR_8254_TIMER */
byte |= 1 << 6; /* Enable arbiter between APIC and PIC interrupts */
pci_write_config8(dev, 0xAE, byte);
/* 4.11:Programming Cycle Delay for AB and BIF Clock Gating */
/* 4.12: Enabling AB and BIF Clock Gating */
abcfg_reg(0x10054, 0xFFFF0000, 0x1040000);
abcfg_reg(0x54, 0xFF << 16, 4 << 16);
abcfg_reg(0x54, 1 << 24, 0 << 24);
abcfg_reg(0x98, 0x0000FF00, 0x00004700);
/* 4.13:Enabling AB Int_Arbiter Enhancement (for All Revisions) */
abcfg_reg(0x10054, 0x0000FFFF, 0x07FF);
/* 4.14:Enabling Requester ID for upstream traffic. */
abcfg_reg(0x98, 1 << 16, 1 << 16);
/* 9.2: Enabling IDE Data Bus DD7 Pull Down Resistor */
byte = pm2_ioread(0xE5);
byte |= 1 << 2;
pm2_iowrite(0xE5, byte);
/* Enable IDE controller. */
byte = pm_ioread(0x59);
byte &= ~(1 << 1);
pm_iowrite(0x59, byte);
/* Enable SCI as irq9. */
outb(0x4, 0xC00);
outb(0x9, 0xC01);
printk(BIOS_INFO, "sm_init() end\n");
/* Enable NbSb virtual channel */
axcfg_reg(0x114, 0x3f << 1, 0 << 1);
axcfg_reg(0x120, 0x7f << 1, 0x7f << 1);
axcfg_reg(0x120, 7 << 24, 1 << 24);
axcfg_reg(0x120, 1 << 31, 1 << 31);
abcfg_reg(0x50, 1 << 3, 1 << 3);
}