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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2008-2009 coresystems GmbH
* Copyright (C) 2014 Vladimir Serbinenko
* Copyright (C) 2017 Tobias Diedrich <ranma+coreboot@tdiedrich.de>
*
* 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; version 2 of
* the License.
*
* 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 <stdint.h>
#include <halt.h>
#include <arch/io.h>
#include <device/pci_def.h>
#include <arch/acpi.h>
#include <console/console.h>
#include "northbridge/intel/sandybridge/raminit_native.h"
#include "superio.h"
#include "thermal.h"
#if IS_ENABLED(CONFIG_DISABLE_UART_ON_TESTPADS)
#define DEBUG_UART_EN 0
#else
#define DEBUG_UART_EN COMA_LPC_EN
#endif
void pch_enable_lpc(void)
{
pci_write_config16(PCI_DEV(0, 0x1f, 0), LPC_EN,
CNF2_LPC_EN | DEBUG_UART_EN);
/* Decode SuperIO 0x0a00 */
pci_write_config32(PCI_DEV(0, 0x1f, 0), LPC_GEN1_DEC, 0x00fc0a01);
}
void mainboard_rcba_config(void)
{
/* Disable devices */
RCBA32(FD) |= PCH_DISABLE_P2P | PCH_DISABLE_XHCI;
#if IS_ENABLED(CONFIG_USE_NATIVE_RAMINIT)
/* Enable Gigabit Ethernet */
if (RCBA32(BUC) & PCH_DISABLE_GBE) {
RCBA32(BUC) &= ~PCH_DISABLE_GBE;
/* Datasheet says clearing the bit requires a reset after */
printk(BIOS_DEBUG, "Enabled gigabit ethernet, reset once.\n");
outb(0xe, 0xcf9);
halt();
}
#endif
/* Set "mobile" bit in MCH (which makes sense layout-wise). */
/* Note sure if this has any effect at all though. */
MCHBAR32(0x0004) |= 0x00001000;
MCHBAR32(0x0104) |= 0x00001000;
}
void mainboard_early_init(int s3resume)
{
}
static const u16 hwm_initvals[] = {
HWM_BANK(0),
HWM_INITVAL(0xae, 0x01), /* Enable PECI Agent0 */
HWM_BANK(7), /* PECI */
HWM_INITVAL(0x01, 0x95), /* Enable PECI */
HWM_INITVAL(0x03, 0x10), /* Enable Agent 0 */
/*
* PECI temperatures are negative, going up to 0.
* 0 represents the maximum allowable junction temperature, Tjmax.
* There is also Tcontrol, which is the temperature at which the
* system cooling should run at full speed.
* Since the NCT5577D fan control only supports positive values,
* Tbase0 is used as an offset.
*/
HWM_INITVAL(0x09, CRITICAL_TEMPERATURE), /* Tbase0 */
HWM_BANK(2), /* CPUFAN control */
HWM_INITVAL(0x00, 0x0c), /* PECI Agent 0 as CPUFAN monitoring source */
HWM_INITVAL(0x01, 50), /* Target temperature */
HWM_INITVAL(0x02, 0x40), /* Enable Smart Fan IV mode */
HWM_INITVAL(0x03, 0x01), /* Step-up time */
HWM_INITVAL(0x04, 0x01), /* Step-down time */
HWM_INITVAL(0x05, 0x10), /* Stop PWM value */
HWM_INITVAL(0x06, 0x20), /* Start PWM value */
HWM_INITVAL(0x21, 45), /* Smart Fan IV Temp1 */
HWM_INITVAL(0x22, 46), /* Smart Fan IV Temp2 */
HWM_INITVAL(0x23, 47), /* Smart Fan IV Temp3 */
HWM_INITVAL(0x24, PASSIVE_TEMPERATURE), /* Smart Fan IV Temp4 */
HWM_INITVAL(0x27, 0x01), /* Smart Fan IV PWM1 */
HWM_INITVAL(0x28, 0x02), /* Smart Fan IV PWM2 */
HWM_INITVAL(0x29, 0x03), /* Smart Fan IV PWM3 */
HWM_INITVAL(0x2a, 0xff), /* Smart Fan IV PWM4 */
/* Smart Fan IV Critical temp */
HWM_INITVAL(0x35, CRITICAL_TEMPERATURE),
HWM_INITVAL(0x38, 3), /* Smart Fan IV Critical temp tolerance */
HWM_INITVAL(0x39, 0x81), /* Enable SYSTIN weight value */
HWM_INITVAL(0x3a, 1), /* SYSTIN temperature step */
HWM_INITVAL(0x3b, 2), /* SYSTIN step tolerance */
HWM_INITVAL(0x3c, 1), /* SYSTIN weight step */
HWM_INITVAL(0x3d, 40), /* SYSTIN temperature base */
HWM_INITVAL(0x3e, 0x00), /* SYSTIN fan duty base */
HWM_BANK(0),
};
static void hwm_init(void)
{
/* Set up fan control */
for (int i = 0; i < ARRAY_SIZE(hwm_initvals); i++)
HWM_WRITE_INITVAL(hwm_initvals[i]);
}
static const u16 superio_initvals[] = {
/* Global config registers */
SUPERIO_INITVAL(0x1a, 0x02),
SUPERIO_INITVAL(0x1b, 0x6a),
SUPERIO_INITVAL(0x27, 0x80),
#if IS_ENABLED(CONFIG_DISABLE_UART_ON_TESTPADS)
SUPERIO_INITVAL(0x2a, 0x80),
#else
SUPERIO_INITVAL(0x2a, 0x00),
#endif
SUPERIO_INITVAL(0x2c, 0x00),
SUPERIO_BANK(2), /* UART A */
SUPERIO_INITVAL(0x30, 0x01),
SUPERIO_INITVAL(0x60, 0x03),
SUPERIO_INITVAL(0x61, 0xf8),
SUPERIO_INITVAL(0x70, 0x04),
SUPERIO_BANK(7), /* GPIO config */
SUPERIO_INITVAL(0x30, 0x01),
SUPERIO_INITVAL(0xe0, 0xcf),
SUPERIO_INITVAL(0xe1, 0x0f),
SUPERIO_INITVAL(0xe4, 0xed),
SUPERIO_INITVAL(0xe5, 0x4d),
SUPERIO_INITVAL(0xec, 0x30),
SUPERIO_INITVAL(0xee, 0xff),
SUPERIO_BANK(8),
SUPERIO_INITVAL(0x30, 0x0a),
SUPERIO_INITVAL(0x60, GPIO_PORT >> 8),
SUPERIO_INITVAL(0x61, GPIO_PORT & 0xff),
SUPERIO_BANK(9),
SUPERIO_INITVAL(0x30, 0x8c),
SUPERIO_INITVAL(0xe1, 0x90),
SUPERIO_BANK(0xa),
SUPERIO_INITVAL(0xe4, 0x20),
SUPERIO_INITVAL(0xe6, 0x4c),
SUPERIO_BANK(0xb), /* HWM & LED */
SUPERIO_INITVAL(0x30, 0x01),
SUPERIO_INITVAL(0x60, HWM_PORT >> 8),
SUPERIO_INITVAL(0x61, HWM_PORT & 0xff),
SUPERIO_INITVAL(0xf7, 0x67),
SUPERIO_INITVAL(0xf8, 0x60),
SUPERIO_BANK(0x16),
SUPERIO_INITVAL(0x30, 0x00),
};
static void superio_init(void)
{
SUPERIO_UNLOCK;
for (int i = 0; i < ARRAY_SIZE(superio_initvals); i++)
SUPERIO_WRITE_INITVAL(superio_initvals[i]);
SUPERIO_LOCK;
}
void mainboard_config_superio(void)
{
superio_init();
hwm_init();
}
void mainboard_get_spd(spd_raw_data *spd, bool id_only)
{
read_spd(&spd[0], 0x50, id_only);
read_spd(&spd[2], 0x51, id_only);
}
const struct southbridge_usb_port mainboard_usb_ports[] = {
#define USB_CONFIG(enabled, current, ocpin) { enabled, current, ocpin }
#include "usb.h"
};
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