intel/ixgbe/ixgbe_common.c

21 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
22 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec);
850 	u32 eec;
865 		eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
866 		if (eec & IXGBE_EEC_PRES) {
873 			eeprom_size = FIELD_GET(IXGBE_EEC_SIZE, eec);
878 		if (eec & IXGBE_EEC_ADDR_SIZE)
1330 	u32 eec;
1336 	eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1339 	eec |= IXGBE_EEC_REQ;
1340 	IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1343 		eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1344 		if (eec & IXGBE_EEC_GNT)
1350 	if (!(eec & IXGBE_EEC_GNT)) {
1351 		eec &= ~IXGBE_EEC_REQ;
1352 		IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1361 	eec &= ~(IXGBE_EEC_CS | IXGBE_EEC_SK);
1362 	IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1505 	u32 eec;
1507 	eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1510 	eec |= IXGBE_EEC_CS;
1511 	IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1514 	eec &= ~IXGBE_EEC_CS;
1515 	IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1529 	u32 eec;
1533 	eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1550 			eec |= IXGBE_EEC_DI;
1552 			eec &= ~IXGBE_EEC_DI;
1554 		IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1559 		ixgbe_raise_eeprom_clk(hw, &eec);
1560 		ixgbe_lower_eeprom_clk(hw, &eec);
1570 	eec &= ~IXGBE_EEC_DI;
1571 	IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1582 	u32 eec;
1593 	eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1595 	eec &= ~(IXGBE_EEC_DO | IXGBE_EEC_DI);
1599 		ixgbe_raise_eeprom_clk(hw, &eec);
1601 		eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1603 		eec &= ~(IXGBE_EEC_DI);
1604 		if (eec & IXGBE_EEC_DO)
1607 		ixgbe_lower_eeprom_clk(hw, &eec);
1616  *  @eec: EEC register's current value
1618 static void ixgbe_raise_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
1624 	*eec = *eec | IXGBE_EEC_SK;
1625 	IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), *eec);
1633  *  @eec: EEC's current value
1635 static void ixgbe_lower_eeprom_clk(struct ixgbe_hw *hw, u32 *eec)
1641 	*eec = *eec & ~IXGBE_EEC_SK;
1642 	IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), *eec);
1653 	u32 eec;
1655 	eec = IXGBE_READ_REG(hw, IXGBE_EEC(hw));
1657 	eec |= IXGBE_EEC_CS;  /* Pull CS high */
1658 	eec &= ~IXGBE_EEC_SK; /* Lower SCK */
1660 	IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);
1666 	eec &= ~IXGBE_EEC_REQ;
1667 	IXGBE_WRITE_REG(hw, IXGBE_EEC(hw), eec);