dev/ixgbe/ixgbe_common.c

49 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
50 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
73 	u32 eec = IXGBE_READ_REG(hw, IXGBE_EEC);
80 	if (eec & IXGBE_EEC_PRES) {
1150 	u32 eec;
1167 		eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1168 		if (eec & IXGBE_EEC_PRES) {
1175 			eeprom_size = (u16)((eec & IXGBE_EEC_SIZE) >>
1181 		if (eec & IXGBE_EEC_ADDR_SIZE)
1718 	u32 eec;
1728 		eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1731 		eec |= IXGBE_EEC_REQ;
1732 		IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1735 			eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1736 			if (eec & IXGBE_EEC_GNT)
1742 		if (!(eec & IXGBE_EEC_GNT)) {
1743 			eec &= ~IXGBE_EEC_REQ;
1744 			IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1754 			eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK);
1755 			IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1921 	u32 eec;
1925 	eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1928 	eec |= IXGBE_EEC_CS;
1929 	IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1932 	eec &= ~IXGBE_EEC_CS;
1933 	IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1947 	u32 eec;
1953 	eec = IXGBE_READ_REG(hw, IXGBE_EEC);
1970 			eec |= IXGBE_EEC_DI;
1972 			eec &= ~IXGBE_EEC_DI;
1974 		IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
1979 		ixgbe_raise_eeprom_clk(hw, &eec);
1980 		ixgbe_lower_eeprom_clk(hw, &eec);
1990 	eec &= ~IXGBE_EEC_DI;
1991 	IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
2001 	u32 eec;
2014 	eec = IXGBE_READ_REG(hw, IXGBE_EEC);
2016 	eec &= ~(IXGBE_EEC_DO | IXGBE_EEC_DI);
2020 		ixgbe_raise_eeprom_clk(hw, &eec);
2022 		eec = IXGBE_READ_REG(hw, IXGBE_EEC);
2024 		eec &= ~(IXGBE_EEC_DI);
2025 		if (eec & IXGBE_EEC_DO)
2028 		ixgbe_lower_eeprom_clk(hw, &eec);
2037  *  @eec: EEC register's current value
2039 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
2047 	*eec = *eec | IXGBE_EEC_SK;
2048 	IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec);
2058 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
2066 	*eec = *eec & ~IXGBE_EEC_SK;
2067 	IXGBE_WRITE_REG(hw, IXGBE_EEC, *eec);
2078 	u32 eec;
2082 	eec = IXGBE_READ_REG(hw, IXGBE_EEC);
2084 	eec |= IXGBE_EEC_CS;  /* Pull CS high */
2085 	eec &= ~IXGBE_EEC_SK; /* Lower SCK */
2087 	IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);
2093 	eec &= ~IXGBE_EEC_REQ;
2094 	IXGBE_WRITE_REG(hw, IXGBE_EEC, eec);