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/* SPDX-License-Identifier: GPL-2.0-only */
#include <bootblock_common.h>
#include <stdint.h>
#include <southbridge/intel/bd82x6x/pch.h>
#include "superio.h"
#include "thermal.h"
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 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 bootblock_mainboard_early_init(void)
{
superio_init();
hwm_init();
}
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