void ec_mem_write(u8 addr, u8 data)
{
ec_write_cmd(EC_CMD_WRITE_RAM);
ec_write_ib(addr);
ec_write_ib(data);
return;
}
void mainboard_suspend_resume(void)
{
/* Call SMM finalize() handlers before resume */
outb(0xcb, 0xb2);
/* Stout EC needs to be put back in ACPI mode */
ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER);
}
int mainboard_smi_apmc(u8 apmc)
{
printk(BIOS_DEBUG, "mainboard_smi_apmc: %x\n", apmc);
switch (apmc) {
case APMC_ACPI_EN:
printk(BIOS_DEBUG, "APMC: ACPI_EN\n");
/* Clear all pending events and enable SCI */
ec_write_cmd(EC_CMD_ENABLE_ACPI_MODE);
break;
case APMC_ACPI_DIS:
printk(BIOS_DEBUG, "APMC: ACPI_DIS\n");
/* Clear all pending events and tell the EC that ACPI is disabled */
ec_write_cmd(EC_CMD_DISABLE_ACPI_MODE);
break;
}
return 0;
}
u8 ec_it8518_get_event(void)
{
u8 cmd = 0;
u8 status = inb(EC_SC);
if (status & SCI_EVT) {
ec_write_cmd(QR_EC);
cmd = ec_read_ob();
} else if ( status & SMI_EVT) {
ec_kbc_write_cmd(EC_KBD_SMI_EVENT);
cmd = ec_kbc_read_ob();
}
return cmd;
}
/*
* The Stout EC needs to be reset to RW mode. It is important that
* the RTC_PWR_STS is not set until ramstage EC init.
*/
static void early_ec_init(void)
{
u8 ec_status = ec_read(EC_STATUS_REG);
int rec_mode = get_recovery_mode_switch();
if (((ec_status & 0x3) == EC_IN_RO_MODE) ||
((ec_status & 0x3) == EC_IN_RECOVERY_MODE)) {
printk(BIOS_DEBUG, "EC Cold Boot Detected\n");
if (!rec_mode) {
/*
* Tell EC to exit RO mode
*/
printk(BIOS_DEBUG, "EC will exit RO mode and boot normally\n");
ec_write_cmd(EC_CMD_EXIT_BOOT_BLOCK);
die("wait for ec to reset");
}
} else {
printk(BIOS_DEBUG, "EC Warm Boot Detected\n");
ec_write_cmd(EC_CMD_WARM_RESET);
}
}
void ec_write(u16 addr, u8 data)
{
ec_write_cmd(WR_EC);
ec_write_ib(addr);
ec_write_ib(data);
}
u8 ec_read(u16 addr)
{
ec_write_cmd(RD_EC);
ec_write_ib(addr);
return ec_read_ob();
}
/*
* These functions are for accessing the ENE932 device RAM space
*/
u8 ec_mem_read(u8 addr)
{
ec_write_cmd(EC_CMD_READ_RAM);
ec_write_ib(addr);
return ec_read_ob();
}
void mainboard_suspend_resume(void)
{
/* Stout EC needs to be put back in ACPI mode */
ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER);
}