text: /* SPDX-License-Identifier: GPL-2.0 */
  /*
   * Copyright (c) 2020 Synopsys, Inc. and/or its affiliates.
   * Synopsys DesignWare XPCS helpers
   *
   * Author: Jose Abreu <Jose.Abreu@synopsys.com>
   */
  
  #define SYNOPSYS_XPCS_ID		0x7996ced0
  #define SYNOPSYS_XPCS_MASK		0xffffffff
  
  /* Vendor regs access */
  #define DW_VENDOR			BIT(15)
  
  /* VR_XS_PCS */
  #define DW_USXGMII_RST			BIT(10)
  #define DW_USXGMII_EN			BIT(9)
  #define DW_VR_XS_PCS_DIG_STS		0x0010
  #define DW_RXFIFO_ERR			GENMASK(6, 5)
  
  /* SR_MII */
  #define DW_USXGMII_FULL			BIT(8)
  #define DW_USXGMII_SS_MASK		(BIT(13) | BIT(6) | BIT(5))
  #define DW_USXGMII_10000		(BIT(13) | BIT(6))
  #define DW_USXGMII_5000			(BIT(13) | BIT(5))
  #define DW_USXGMII_2500			(BIT(5))
  #define DW_USXGMII_1000			(BIT(6))
  #define DW_USXGMII_100			(BIT(13))
  #define DW_USXGMII_10			(0)
  
  /* SR_AN */
  #define DW_SR_AN_ADV1			0x10
  #define DW_SR_AN_ADV2			0x11
  #define DW_SR_AN_ADV3			0x12
  #define DW_SR_AN_LP_ABL1		0x13
  #define DW_SR_AN_LP_ABL2		0x14
  #define DW_SR_AN_LP_ABL3		0x15
  
  /* Clause 73 Defines */
  /* AN_LP_ABL1 */
  #define DW_C73_PAUSE			BIT(10)
  #define DW_C73_ASYM_PAUSE		BIT(11)
  #define DW_C73_AN_ADV_SF		0x1
  /* AN_LP_ABL2 */
  #define DW_C73_1000KX			BIT(5)
  #define DW_C73_10000KX4			BIT(6)
  #define DW_C73_10000KR			BIT(7)
  /* AN_LP_ABL3 */
  #define DW_C73_2500KX			BIT(0)
  #define DW_C73_5000KR			BIT(1)
  
  /* Clause 37 Defines */
  /* VR MII MMD registers offsets */
  #define DW_VR_MII_MMD_CTRL		0x0000
  #define DW_VR_MII_DIG_CTRL1		0x8000
  #define DW_VR_MII_AN_CTRL		0x8001
  #define DW_VR_MII_AN_INTR_STS		0x8002
  /* Enable 2.5G Mode */
  #define DW_VR_MII_DIG_CTRL1_2G5_EN	BIT(2)
  /* EEE Mode Control Register */
  #define DW_VR_MII_EEE_MCTRL0		0x8006
  #define DW_VR_MII_EEE_MCTRL1		0x800b
  #define DW_VR_MII_DIG_CTRL2		0x80e1
  
  /* VR_MII_DIG_CTRL1 */
  #define DW_VR_MII_DIG_CTRL1_MAC_AUTO_SW		BIT(9)
  
  /* VR_MII_DIG_CTRL2 */
  #define DW_VR_MII_DIG_CTRL2_TX_POL_INV		BIT(4)
  #define DW_VR_MII_DIG_CTRL2_RX_POL_INV		BIT(0)
  
  /* VR_MII_AN_CTRL */
  #define DW_VR_MII_AN_CTRL_TX_CONFIG_SHIFT	3
  #define DW_VR_MII_TX_CONFIG_MASK		BIT(3)
  #define DW_VR_MII_TX_CONFIG_PHY_SIDE_SGMII	0x1
  #define DW_VR_MII_TX_CONFIG_MAC_SIDE_SGMII	0x0
  #define DW_VR_MII_AN_CTRL_PCS_MODE_SHIFT	1
  #define DW_VR_MII_PCS_MODE_MASK			GENMASK(2, 1)
  #define DW_VR_MII_PCS_MODE_C37_1000BASEX	0x0
  #define DW_VR_MII_PCS_MODE_C37_SGMII		0x2
  
  /* VR_MII_AN_INTR_STS */
  #define DW_VR_MII_AN_STS_C37_ANSGM_FD		BIT(1)
  #define DW_VR_MII_AN_STS_C37_ANSGM_SP_SHIFT	2
  #define DW_VR_MII_AN_STS_C37_ANSGM_SP		GENMASK(3, 2)
  #define DW_VR_MII_C37_ANSGM_SP_10		0x0
  #define DW_VR_MII_C37_ANSGM_SP_100		0x1
  #define DW_VR_MII_C37_ANSGM_SP_1000		0x2
  #define DW_VR_MII_C37_ANSGM_SP_LNKSTS		BIT(4)
  
  /* SR MII MMD Control defines */
  #define AN_CL37_EN			BIT(12)	/* Enable Clause 37 auto-nego */
  #define SGMII_SPEED_SS13		BIT(13)	/* SGMII speed along with SS6 */
  #define SGMII_SPEED_SS6			BIT(6)	/* SGMII speed along with SS13 */
  
  /* VR MII EEE Control 0 defines */
  #define DW_VR_MII_EEE_LTX_EN			BIT(0)  /* LPI Tx Enable */
  #define DW_VR_MII_EEE_LRX_EN			BIT(1)  /* LPI Rx Enable */
  #define DW_VR_MII_EEE_TX_QUIET_EN		BIT(2)  /* Tx Quiet Enable */
  #define DW_VR_MII_EEE_RX_QUIET_EN		BIT(3)  /* Rx Quiet Enable */
  #define DW_VR_MII_EEE_TX_EN_CTRL		BIT(4)  /* Tx Control Enable */
  #define DW_VR_MII_EEE_RX_EN_CTRL		BIT(7)  /* Rx Control Enable */
  
  #define DW_VR_MII_EEE_MULT_FACT_100NS_SHIFT	8
  #define DW_VR_MII_EEE_MULT_FACT_100NS		GENMASK(11, 8)
  
  /* VR MII EEE Control 1 defines */
  #define DW_VR_MII_EEE_TRN_LPI		BIT(0)	/* Transparent Mode Enable */
  
  int xpcs_read(struct dw_xpcs *xpcs, int dev, u32 reg);
  int xpcs_write(struct dw_xpcs *xpcs, int dev, u32 reg, u16 val);
  
  int nxp_sja1105_sgmii_pma_config(struct dw_xpcs *xpcs);
  int nxp_sja1110_sgmii_pma_config(struct dw_xpcs *xpcs);
  int nxp_sja1110_2500basex_pma_config(struct dw_xpcs *xpcs);
  