C++ (Cpp) imc_reg_init Examples

Example #1

/* Bettong Hardware Monitor Fan Control
 * Hardware limitation:
 *  HWM will fail to read the input temperature via I2C if other
 *  software switches the I2C address.  AMD recommends using IMC
 *  to control fans, instead of HWM.
 */
static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
{
	/* Enable IMC fan control. the recommand way */
	imc_reg_init();

	FchParams->Imc.ImcEnable = TRUE;
	FchParams->Hwm.HwmControl = 1; /* 1 IMC, 0 HWM */
	FchParams->Imc.ImcEnableOverWrite = 1; /* 2 disable IMC, 1 enable IMC, 0 following hw strap setting */

	memset(&FchParams->Imc.EcStruct, 0, sizeof(FCH_EC));
}

Example #2

File: BiosCallOuts.c Project: canistation/coreboot

/* Olivehill Hardware Monitor Fan Control
 * Hardware limitation:
 *  HWM failed to read the input temperture vi I2C,
 *  if other software switch the I2C switch by mistake or intention.
 *  We recommend to using IMC to control Fans, instead of HWM.
 */
static void oem_fan_control(FCH_DATA_BLOCK *FchParams)
{
	/* Enable IMC fan control. the recommand way */
	if (CONFIG(HUDSON_IMC_FWM)) {
		imc_reg_init();

		/* HwMonitorEnable = TRUE &&  HwmFchtsiAutoOpll ==FALSE to call FchECfancontrolservice */
		FchParams->Hwm.HwMonitorEnable = TRUE;
		FchParams->Hwm.HwmFchtsiAutoPoll = FALSE;/* 0 disable, 1 enable TSI Auto Polling */

		FchParams->Imc.ImcEnable = TRUE;
		FchParams->Hwm.HwmControl = 1;	/* 1 IMC, 0 HWM */
		FchParams->Imc.ImcEnableOverWrite = 1; /* 2 disable IMC, 1 enable IMC, 0 following hw strap setting */

		LibAmdMemFill(&(FchParams->Imc.EcStruct), 0, sizeof(FCH_EC), FchParams->StdHeader);

		/* Thermal Zone Parameter */
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg0 = 0x00;
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg1 = 0x00;	/* Zone */
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg2 = 0x3d; //BIT0 | BIT2 | BIT5;
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg3 = 0x4e;//6 | BIT3;
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg4 = 0x00;
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x04;
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x9a;	/* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x01;
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01;	/* PWM steping rate in unit of PWM level percentage */
		FchParams->Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;

		/* IMC Fan Policy temperature thresholds */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg0 = 0x00;
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg1 = 0x00;	/* Zone */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg2 = 0x46;///80;	/*AC0 threshold in Celsius */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg3 = 0x3c;	/*AC1 threshold in Celsius */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg4 = 0x32;	/*AC2 threshold in Celsius */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg5 = 0xff;	/*AC3 threshold in Celsius, 0xFF is not define */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg6 = 0xff;	/*AC4 threshold in Celsius, 0xFF is not define */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg7 = 0xff;	/*AC5 threshold in Celsius, 0xFF is not define */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg8 = 0xff;	/*AC6 threshold in Celsius, 0xFF is not define */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgReg9 = 0xff;	/*AC7 lowest threshold in Celsius, 0xFF is not define */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgRegA = 0x4b;	/*critical threshold* in Celsius, 0xFF is not define */
		FchParams->Imc.EcStruct.MsgFun83Zone0MsgRegB = 0x00;

		/* IMC Fan Policy PWM Settings */
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg0 = 0x00;
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg1 = 0x00;	/* Zone */
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg2 = 0x5a;	/* AL0 percentage */
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg3 = 0x46;	/* AL1 percentage */
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg4 = 0x28;	/* AL2 percentage */
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg5 = 0xff;	/* AL3 percentage */
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg6 = 0xff;	/* AL4 percentage */
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg7 = 0xff;	/* AL5 percentage */
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg8 = 0xff;	/* AL6 percentage */
		FchParams->Imc.EcStruct.MsgFun85Zone0MsgReg9 = 0xff;	/* AL7 percentage */

		FchParams->Imc.EcStruct.IMCFUNSupportBitMap = 0x111;//BIT0 | BIT4 |BIT8;

		/* NOTE:
		 * FchInitLateHwm will overwrite the EcStruct with EcDefaultMassege,
		 * AGESA put EcDefaultMassege as global data in ROM, so we can't overwride it.
		 * so we remove it from AGESA code. Please Seee FchInitLateHwm.
		 */
	} else {
		/* HWM fan control, the way not recommand */
		FchParams->Imc.ImcEnable = FALSE;
		FchParams->Hwm.HwMonitorEnable = TRUE;
		FchParams->Hwm.HwmFchtsiAutoPoll = TRUE;/* 1 enable, 0 disable TSI Auto Polling */
	}
}