Overview

This file contains eFuse functions of xilnvm library and provides the access to program eFUSE.

MODIFICATION HISTORY:

Ver Who Date Changes

3.0 kal 07/16/2022 Initial release dc 08/29/2022 Changed u8 to u32 type kal 09/29/2022 Removed unlock and lock of eFuse controller from the XNvm_EfuseCacheReload function 3.1 skg 10/25/2022 Added in body comments for APIs kal 03/07/2023 Added volatile keyword for Status variables 3.2 kum 04/11/2023 Moved Env monitor API's from versal xnvm_efuse.c to make use for both versal and versalnet vss 09/19/2023 Fixed MISRA-C Rule 8.7 violation 3.3 vss 12/31/2023 Added support for Program the eFuse protection bits only once ng 11/22/2023 Fixed doxygen grouping

Macros
eFuse macro definitions
#define	XNVM_ONE_MICRO_SECOND (1U)
	< One Micro Second Timeout More...

#define	XNVM_EFUSE_TPGM_DIV (200000UL)
	TRD Divisor value. More...

#define	XNVM_EFUSE_TRD_DIV (4608294UL)
	TRMD Divisor value. More...

#define	XNVM_EFUSE_TRMD_DIV (2000000UL)
	TSU_H_PS Divisor value. More...

#define	XNVM_EFUSE_TSU_H_PS_DIV (4807692UL)
	TSU_H_PS_CS Divisor value. More...

#define	XNVM_EFUSE_TSU_H_PS_CS_DIV (6993007UL)
	TSU_H_CS Divisor value. More...

#define	XNVM_EFUSE_TSU_H_CS_DIV (5434783UL)
	Default secure value for 32 bit. More...

#define	XNVM_EFUSE_SEC_DEF_VAL_ALL_BIT_SET (0xFFFFFFFFU)
	Default secure value for 8 bit. More...

#define	XNVM_EFUSE_SEC_DEF_VAL_BYTE_SET (0xFFU)
	Sysmon VCCPMC Amux ctrl value. More...

#define	XNVM_EFUSE_SYSMON_VCCPMC_AMUX_CTRL (0x0bU)
	Sysmon VCCPMC Abus sw1 value. More...

#define	XNVM_EFUSE_SYSMON_VCCPMC_ABUS_SW1 (0x00U)
	Sysmon VCCPMC Abus sw0 value. More...

#define	XNVM_EFUSE_SYSMON_VCCPMC_ABUS_SW0 (0x02U)
	Sysmon VCCPMC mode value. More...

#define	XNVM_EFUSE_SYSMON_VCCPMC_MODE (0x00U)
	Sysmon number of measurement registers. More...

#define	XNVM_EFUSE_SYSMON_NUM_MEASURE_REGS (0x20U)
	Sysmon number of supplies per flag. More...

#define	XNVM_EFUSE_SYSMON_NUM_SUPPLIES_PER_FLAG (32U)
	Sysmon Psv timeout value. More...

#define	XNVM_EFUSE_SYSMONPSV_TIMEOUT (100000U)
	Fraction multiplier value. More...

#define	XNVM_EFUSE_FRACTION_MUL_VALUE (1000000U)
	eFuse word length More...

#define	XNVM_EFUSE_WORD_LEN (4U)

Functions
void	XNvm_EfuseDisablePowerDown (void)
	This function disables power down of eFUSE macros. More...


int	XNvm_EfuseCacheReload (void)
	This function reloads the eFUSE cache, so that eFUSE values can be directly read from cache. More...

int	XNvm_EfuseSetReadMode (XNvm_EfuseRdMode RdMode)
	This function sets read mode of eFUSE controller. More...

void	XNvm_EfuseSetRefClk (void)
	This function sets reference clock of eFUSE controller. More...

void	XNvm_EfuseEnableProgramming (void)
	This function enables programming mode of eFUSE controller. More...

int	XNvm_EfuseDisableProgramming (void)
	This function disables programming mode of eFUSE controller. More...

int	XNvm_EfuseResetReadMode (void)
	This function disables Margin Read mode of eFUSE controller. More...

void	XNvm_EfuseInitTimers (void)
	This function initializes eFUSE controller timers. More...

int	XNvm_EfuseSetupController (XNvm_EfuseOpMode Op, XNvm_EfuseRdMode RdMode)
	This function setups eFUSE controller for given operation and read mode. More...

int	XNvm_EfuseCheckForTBits (void)
	This function checks whether Tbits are programmed or not. More...

u32	XNvm_GetSysmonSupplyRegId (UINTPTR SysmonpsvSatBaseAddr)
	This function reads root register ID where measurement is stored in Root SysMon. More...

int	XNvm_EfuseTempAndVoltChecks (const XSysMonPsv *SysMonInstPtr)
	This function performs the Temparature and Voltage checks to ensure that they are in limits before eFuse programming. More...

u32	XNvm_EfuseReadProtectionBits (u32 Mask)
	This function reads the corresponding eFuse protection bits. More...