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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2018 MediaTek Inc.
*
* Author: Weijie Gao <weijie.gao@mediatek.com>
* Author: Mark Lee <mark-mc.lee@mediatek.com>
*/
#ifndef _MTK_ETH_H_
#define _MTK_ETH_H_
#include <linux/bitops.h>
#include <linux/bitfield.h>
enum mkt_eth_capabilities {
MTK_TRGMII_BIT,
MTK_TRGMII_MT7621_CLK_BIT,
MTK_U3_COPHY_V2_BIT,
MTK_INFRA_BIT,
MTK_NETSYS_V2_BIT,
/* PATH BITS */
MTK_ETH_PATH_GMAC1_TRGMII_BIT,
MTK_ETH_PATH_GMAC2_SGMII_BIT,
};
#define MTK_TRGMII BIT(MTK_TRGMII_BIT)
#define MTK_TRGMII_MT7621_CLK BIT(MTK_TRGMII_MT7621_CLK_BIT)
#define MTK_U3_COPHY_V2 BIT(MTK_U3_COPHY_V2_BIT)
#define MTK_INFRA BIT(MTK_INFRA_BIT)
#define MTK_NETSYS_V2 BIT(MTK_NETSYS_V2_BIT)
/* Supported path present on SoCs */
#define MTK_ETH_PATH_GMAC1_TRGMII BIT(MTK_ETH_PATH_GMAC1_TRGMII_BIT)
#define MTK_ETH_PATH_GMAC2_SGMII BIT(MTK_ETH_PATH_GMAC2_SGMII_BIT)
#define MTK_GMAC1_TRGMII (MTK_ETH_PATH_GMAC1_TRGMII | MTK_TRGMII)
#define MTK_GMAC2_U3_QPHY (MTK_ETH_PATH_GMAC2_SGMII | MTK_U3_COPHY_V2 | MTK_INFRA)
#define MTK_HAS_CAPS(caps, _x) (((caps) & (_x)) == (_x))
#define MT7621_CAPS (MTK_GMAC1_TRGMII | MTK_TRGMII_MT7621_CLK)
#define MT7623_CAPS (MTK_GMAC1_TRGMII)
#define MT7981_CAPS (MTK_GMAC2_U3_QPHY | MTK_NETSYS_V2)
#define MT7986_CAPS (MTK_NETSYS_V2)
/* Frame Engine Register Bases */
#define PDMA_V1_BASE 0x0800
#define PDMA_V2_BASE 0x6000
#define GDMA1_BASE 0x0500
#define GDMA2_BASE 0x1500
#define GMAC_BASE 0x10000
/* Ethernet subsystem registers */
#define ETHSYS_SYSCFG0_REG 0x14
#define SYSCFG0_GE_MODE_S(n) (12 + ((n) * 2))
#define SYSCFG0_GE_MODE_M 0x3
#define SYSCFG0_SGMII_SEL_M (0x3 << 8)
#define SYSCFG0_SGMII_SEL(gmac) ((!(gmac)) ? BIT(9) : BIT(8))
#define ETHSYS_CLKCFG0_REG 0x2c
#define ETHSYS_TRGMII_CLK_SEL362_5 BIT(11)
/* Top misc registers */
#define USB_PHY_SWITCH_REG 0x218
#define QPHY_SEL_MASK 0x3
#define SGMII_QPHY_SEL 0x2
/* SYSCFG0_GE_MODE: GE Modes */
#define GE_MODE_RGMII 0
#define GE_MODE_MII 1
#define GE_MODE_MII_PHY 2
#define GE_MODE_RMII 3
/* SGMII subsystem config registers */
#define SGMSYS_PCS_CONTROL_1 0x0
#define SGMII_LINK_STATUS BIT(18)
#define SGMII_AN_ENABLE BIT(12)
#define SGMII_AN_RESTART BIT(9)
#define SGMSYS_SGMII_MODE 0x20
#define SGMII_AN_MODE 0x31120103
#define SGMII_FORCE_MODE 0x31120019
#define SGMSYS_QPHY_PWR_STATE_CTRL 0xe8
#define SGMII_PHYA_PWD BIT(4)
#define SGMSYS_QPHY_WRAP_CTRL 0xec
#define SGMII_PN_SWAP_TX_RX 0x03
#define SGMSYS_GEN2_SPEED 0x2028
#define SGMSYS_GEN2_SPEED_V2 0x128
#define SGMSYS_SPEED_2500 BIT(2)
/* Frame Engine Registers */
#define FE_GLO_MISC_REG 0x124
#define PDMA_VER_V2 BIT(4)
/* PDMA */
#define TX_BASE_PTR_REG(n) (0x000 + (n) * 0x10)
#define TX_MAX_CNT_REG(n) (0x004 + (n) * 0x10)
#define TX_CTX_IDX_REG(n) (0x008 + (n) * 0x10)
#define TX_DTX_IDX_REG(n) (0x00c + (n) * 0x10)
#define RX_BASE_PTR_REG(n) (0x100 + (n) * 0x10)
#define RX_MAX_CNT_REG(n) (0x104 + (n) * 0x10)
#define RX_CRX_IDX_REG(n) (0x108 + (n) * 0x10)
#define RX_DRX_IDX_REG(n) (0x10c + (n) * 0x10)
#define PDMA_GLO_CFG_REG 0x204
#define TX_WB_DDONE BIT(6)
#define RX_DMA_BUSY BIT(3)
#define RX_DMA_EN BIT(2)
#define TX_DMA_BUSY BIT(1)
#define TX_DMA_EN BIT(0)
#define PDMA_RST_IDX_REG 0x208
#define RST_DRX_IDX0 BIT(16)
#define RST_DTX_IDX0 BIT(0)
/* GDMA */
#define GDMA_IG_CTRL_REG 0x000
#define GDM_ICS_EN BIT(22)
#define GDM_TCS_EN BIT(21)
#define GDM_UCS_EN BIT(20)
#define STRP_CRC BIT(16)
#define MYMAC_DP_S 12
#define MYMAC_DP_M 0xf000
#define BC_DP_S 8
#define BC_DP_M 0xf00
#define MC_DP_S 4
#define MC_DP_M 0xf0
#define UN_DP_S 0
#define UN_DP_M 0x0f
#define GDMA_MAC_LSB_REG 0x008
#define GDMA_MAC_MSB_REG 0x00c
/* MYMAC_DP/BC_DP/MC_DP/UN_DP: Destination ports */
#define DP_PDMA 0
#define DP_GDMA1 1
#define DP_GDMA2 2
#define DP_PPE 4
#define DP_QDMA 5
#define DP_DISCARD 7
/* GMAC Registers */
#define GMAC_PIAC_REG 0x0004
#define PHY_ACS_ST BIT(31)
#define MDIO_REG_ADDR_S 25
#define MDIO_REG_ADDR_M 0x3e000000
#define MDIO_PHY_ADDR_S 20
#define MDIO_PHY_ADDR_M 0x1f00000
#define MDIO_CMD_S 18
#define MDIO_CMD_M 0xc0000
#define MDIO_ST_S 16
#define MDIO_ST_M 0x30000
#define MDIO_RW_DATA_S 0
#define MDIO_RW_DATA_M 0xffff
/* MDIO_CMD: MDIO commands */
#define MDIO_CMD_ADDR 0
#define MDIO_CMD_WRITE 1
#define MDIO_CMD_READ 2
#define MDIO_CMD_READ_C45 3
/* MDIO_ST: MDIO start field */
#define MDIO_ST_C45 0
#define MDIO_ST_C22 1
#define GMAC_PORT_MCR(p) (0x0100 + (p) * 0x100)
#define MAC_RX_PKT_LEN_S 24
#define MAC_RX_PKT_LEN_M 0x3000000
#define IPG_CFG_S 18
#define IPG_CFG_M 0xc0000
#define MAC_MODE BIT(16)
#define FORCE_MODE BIT(15)
#define MAC_TX_EN BIT(14)
#define MAC_RX_EN BIT(13)
#define DEL_RXFIFO_CLR BIT(12)
#define BKOFF_EN BIT(9)
#define BACKPR_EN BIT(8)
#define FORCE_RX_FC BIT(5)
#define FORCE_TX_FC BIT(4)
#define FORCE_SPD_S 2
#define FORCE_SPD_M 0x0c
#define FORCE_DPX BIT(1)
#define FORCE_LINK BIT(0)
/* Values of IPG_CFG */
#define IPG_96BIT 0
#define IPG_96BIT_WITH_SHORT_IPG 1
#define IPG_64BIT 2
/* MAC_RX_PKT_LEN: Max RX packet length */
#define MAC_RX_PKT_LEN_1518 0
#define MAC_RX_PKT_LEN_1536 1
#define MAC_RX_PKT_LEN_1552 2
#define MAC_RX_PKT_LEN_JUMBO 3
/* FORCE_SPD: Forced link speed */
#define SPEED_10M 0
#define SPEED_100M 1
#define SPEED_1000M 2
#define GMAC_TRGMII_RCK_CTRL 0x300
#define RX_RST BIT(31)
#define RXC_DQSISEL BIT(30)
#define GMAC_TRGMII_TD_ODT(n) (0x354 + (n) * 8)
#define TD_DM_DRVN_S 4
#define TD_DM_DRVN_M 0xf0
#define TD_DM_DRVP_S 0
#define TD_DM_DRVP_M 0x0f
/* MT7530 Registers */
#define PCR_REG(p) (0x2004 + (p) * 0x100)
#define PORT_MATRIX_S 16
#define PORT_MATRIX_M 0xff0000
#define PVC_REG(p) (0x2010 + (p) * 0x100)
#define STAG_VPID_S 16
#define STAG_VPID_M 0xffff0000
#define VLAN_ATTR_S 6
#define VLAN_ATTR_M 0xc0
/* VLAN_ATTR: VLAN attributes */
#define VLAN_ATTR_USER 0
#define VLAN_ATTR_STACK 1
#define VLAN_ATTR_TRANSLATION 2
#define VLAN_ATTR_TRANSPARENT 3
#define PMCR_REG(p) (0x3000 + (p) * 0x100)
/* XXX: all fields of MT7530 are defined under GMAC_PORT_MCR
* MT7531 specific fields are defined below
*/
#define FORCE_MODE_EEE1G BIT(25)
#define FORCE_MODE_EEE100 BIT(26)
#define FORCE_MODE_TX_FC BIT(27)
#define FORCE_MODE_RX_FC BIT(28)
#define FORCE_MODE_DPX BIT(29)
#define FORCE_MODE_SPD BIT(30)
#define FORCE_MODE_LNK BIT(31)
#define MT7531_FORCE_MODE FORCE_MODE_EEE1G | FORCE_MODE_EEE100 |\
FORCE_MODE_TX_FC | FORCE_MODE_RX_FC | \
FORCE_MODE_DPX | FORCE_MODE_SPD | \
FORCE_MODE_LNK
/* MT7531 SGMII Registers */
#define MT7531_SGMII_REG_BASE 0x5000
#define MT7531_SGMII_REG_PORT_BASE 0x1000
#define MT7531_SGMII_REG(p, r) (MT7531_SGMII_REG_BASE + \
(p) * MT7531_SGMII_REG_PORT_BASE + (r))
#define MT7531_PCS_CONTROL_1(p) MT7531_SGMII_REG(((p) - 5), 0x00)
#define MT7531_SGMII_MODE(p) MT7531_SGMII_REG(((p) - 5), 0x20)
#define MT7531_QPHY_PWR_STATE_CTRL(p) MT7531_SGMII_REG(((p) - 5), 0xe8)
#define MT7531_PHYA_CTRL_SIGNAL3(p) MT7531_SGMII_REG(((p) - 5), 0x128)
/* XXX: all fields of MT7531 SGMII are defined under SGMSYS */
/* MT753x System Control Register */
#define SYS_CTRL_REG 0x7000
#define SW_PHY_RST BIT(2)
#define SW_SYS_RST BIT(1)
#define SW_REG_RST BIT(0)
/* MT7531 */
#define MT7531_PHY_IAC 0x701c
/* XXX: all fields are defined under GMAC_PIAC_REG */
#define MT7531_CLKGEN_CTRL 0x7500
#define CLK_SKEW_OUT_S 8
#define CLK_SKEW_OUT_M 0x300
#define CLK_SKEW_IN_S 6
#define CLK_SKEW_IN_M 0xc0
#define RXCLK_NO_DELAY BIT(5)
#define TXCLK_NO_REVERSE BIT(4)
#define GP_MODE_S 1
#define GP_MODE_M 0x06
#define GP_CLK_EN BIT(0)
/* Values of GP_MODE */
#define GP_MODE_RGMII 0
#define GP_MODE_MII 1
#define GP_MODE_REV_MII 2
/* Values of CLK_SKEW_IN */
#define CLK_SKEW_IN_NO_CHANGE 0
#define CLK_SKEW_IN_DELAY_100PPS 1
#define CLK_SKEW_IN_DELAY_200PPS 2
#define CLK_SKEW_IN_REVERSE 3
/* Values of CLK_SKEW_OUT */
#define CLK_SKEW_OUT_NO_CHANGE 0
#define CLK_SKEW_OUT_DELAY_100PPS 1
#define CLK_SKEW_OUT_DELAY_200PPS 2
#define CLK_SKEW_OUT_REVERSE 3
#define HWTRAP_REG 0x7800
/* MT7530 Modified Hardware Trap Status Registers */
#define MHWTRAP_REG 0x7804
#define CHG_TRAP BIT(16)
#define LOOPDET_DIS BIT(14)
#define P5_INTF_SEL_S 13
#define P5_INTF_SEL_M 0x2000
#define SMI_ADDR_S 11
#define SMI_ADDR_M 0x1800
#define XTAL_FSEL_S 9
#define XTAL_FSEL_M 0x600
#define P6_INTF_DIS BIT(8)
#define P5_INTF_MODE_S 7
#define P5_INTF_MODE_M 0x80
#define P5_INTF_DIS BIT(6)
#define C_MDIO_BPS BIT(5)
#define CHIP_MODE_S 0
#define CHIP_MODE_M 0x0f
/* P5_INTF_SEL: Interface type of Port5 */
#define P5_INTF_SEL_GPHY 0
#define P5_INTF_SEL_GMAC5 1
/* P5_INTF_MODE: Interface mode of Port5 */
#define P5_INTF_MODE_GMII_MII 0
#define P5_INTF_MODE_RGMII 1
#define MT7530_P6ECR 0x7830
#define P6_INTF_MODE_M 0x3
#define P6_INTF_MODE_S 0
/* P6_INTF_MODE: Interface mode of Port6 */
#define P6_INTF_MODE_RGMII 0
#define P6_INTF_MODE_TRGMII 1
#define NUM_TRGMII_CTRL 5
#define MT7530_TRGMII_RD(n) (0x7a10 + (n) * 8)
#define RD_TAP_S 0
#define RD_TAP_M 0x7f
#define MT7530_TRGMII_TD_ODT(n) (0x7a54 + (n) * 8)
/* XXX: all fields are defined under GMAC_TRGMII_TD_ODT */
/* TOP Signals Status Register */
#define MT7531_TOP_SIG_SR 0x780c
#define PAD_MCM_SMI_EN BIT(0)
#define PAD_DUAL_SGMII_EN BIT(1)
/* MT7531 PLLGP Registers */
#define MT7531_PLLGP_EN 0x7820
#define EN_COREPLL BIT(2)
#define SW_CLKSW BIT(1)
#define SW_PLLGP BIT(0)
#define MT7531_PLLGP_CR0 0x78a8
#define RG_COREPLL_EN BIT(22)
#define RG_COREPLL_POSDIV_S 23
#define RG_COREPLL_POSDIV_M 0x3800000
#define RG_COREPLL_SDM_PCW_S 1
#define RG_COREPLL_SDM_PCW_M 0x3ffffe
#define RG_COREPLL_SDM_PCW_CHG BIT(0)
/* MT7531 RGMII and SGMII PLL clock */
#define MT7531_ANA_PLLGP_CR2 0x78b0
#define MT7531_ANA_PLLGP_CR5 0x78bc
/* MT7531 GPIO GROUP IOLB SMT0 Control */
#define MT7531_SMT0_IOLB 0x7f04
#define SMT_IOLB_5_SMI_MDC_EN BIT(5)
/* MT7530 GPHY MDIO Indirect Access Registers */
#define MII_MMD_ACC_CTL_REG 0x0d
#define MMD_CMD_S 14
#define MMD_CMD_M 0xc000
#define MMD_DEVAD_S 0
#define MMD_DEVAD_M 0x1f
/* MMD_CMD: MMD commands */
#define MMD_ADDR 0
#define MMD_DATA 1
#define MMD_DATA_RW_POST_INC 2
#define MMD_DATA_W_POST_INC 3
#define MII_MMD_ADDR_DATA_REG 0x0e
/* MT7530 GPHY MDIO MMD Registers */
#define CORE_PLL_GROUP2 0x401
#define RG_SYSPLL_EN_NORMAL BIT(15)
#define RG_SYSPLL_VODEN BIT(14)
#define RG_SYSPLL_POSDIV_S 5
#define RG_SYSPLL_POSDIV_M 0x60
#define CORE_PLL_GROUP4 0x403
#define MT7531_BYPASS_MODE BIT(4)
#define MT7531_POWER_ON_OFF BIT(5)
#define RG_SYSPLL_DDSFBK_EN BIT(12)
#define RG_SYSPLL_BIAS_EN BIT(11)
#define RG_SYSPLL_BIAS_LPF_EN BIT(10)
#define CORE_PLL_GROUP5 0x404
#define RG_LCDDS_PCW_NCPO1_S 0
#define RG_LCDDS_PCW_NCPO1_M 0xffff
#define CORE_PLL_GROUP6 0x405
#define RG_LCDDS_PCW_NCPO0_S 0
#define RG_LCDDS_PCW_NCPO0_M 0xffff
#define CORE_PLL_GROUP7 0x406
#define RG_LCDDS_PWDB BIT(15)
#define RG_LCDDS_ISO_EN BIT(13)
#define RG_LCCDS_C_S 4
#define RG_LCCDS_C_M 0x70
#define RG_LCDDS_PCW_NCPO_CHG BIT(3)
#define CORE_PLL_GROUP10 0x409
#define RG_LCDDS_SSC_DELTA_S 0
#define RG_LCDDS_SSC_DELTA_M 0xfff
#define CORE_PLL_GROUP11 0x40a
#define RG_LCDDS_SSC_DELTA1_S 0
#define RG_LCDDS_SSC_DELTA1_M 0xfff
#define CORE_GSWPLL_GRP1 0x40d
#define RG_GSWPLL_POSDIV_200M_S 12
#define RG_GSWPLL_POSDIV_200M_M 0x3000
#define RG_GSWPLL_EN_PRE BIT(11)
#define RG_GSWPLL_FBKDIV_200M_S 0
#define RG_GSWPLL_FBKDIV_200M_M 0xff
#define CORE_GSWPLL_GRP2 0x40e
#define RG_GSWPLL_POSDIV_500M_S 8
#define RG_GSWPLL_POSDIV_500M_M 0x300
#define RG_GSWPLL_FBKDIV_500M_S 0
#define RG_GSWPLL_FBKDIV_500M_M 0xff
#define CORE_TRGMII_GSW_CLK_CG 0x410
#define REG_GSWCK_EN BIT(0)
#define REG_TRGMIICK_EN BIT(1)
/* Extend PHY Control Register 3 */
#define PHY_EXT_REG_14 0x14
/* Fields of PHY_EXT_REG_14 */
#define PHY_EN_DOWN_SHFIT BIT(4)
/* Extend PHY Control Register 4 */
#define PHY_EXT_REG_17 0x17
/* Fields of PHY_EXT_REG_17 */
#define PHY_LINKDOWN_POWER_SAVING_EN BIT(4)
/* PHY RXADC Control Register 7 */
#define PHY_DEV1E_REG_0C6 0x0c6
/* Fields of PHY_DEV1E_REG_0C6 */
#define PHY_POWER_SAVING_S 8
#define PHY_POWER_SAVING_M 0x300
#define PHY_POWER_SAVING_TX 0x0
/* PDMA descriptors */
struct mtk_rx_dma {
unsigned int rxd1;
unsigned int rxd2;
unsigned int rxd3;
unsigned int rxd4;
} __packed __aligned(4);
struct mtk_rx_dma_v2 {
unsigned int rxd1;
unsigned int rxd2;
unsigned int rxd3;
unsigned int rxd4;
unsigned int rxd5;
unsigned int rxd6;
unsigned int rxd7;
unsigned int rxd8;
} __packed __aligned(4);
struct mtk_tx_dma {
unsigned int txd1;
unsigned int txd2;
unsigned int txd3;
unsigned int txd4;
} __packed __aligned(4);
struct mtk_tx_dma_v2 {
unsigned int txd1;
unsigned int txd2;
unsigned int txd3;
unsigned int txd4;
unsigned int txd5;
unsigned int txd6;
unsigned int txd7;
unsigned int txd8;
} __packed __aligned(4);
/* PDMA TXD fields */
#define PDMA_TXD2_DDONE BIT(31)
#define PDMA_TXD2_LS0 BIT(30)
#define PDMA_V1_TXD2_SDL0_M GENMASK(29, 16)
#define PDMA_V1_TXD2_SDL0_SET(_v) FIELD_PREP(PDMA_V1_TXD2_SDL0_M, (_v))
#define PDMA_V2_TXD2_SDL0_M GENMASK(23, 8)
#define PDMA_V2_TXD2_SDL0_SET(_v) FIELD_PREP(PDMA_V2_TXD2_SDL0_M, (_v))
#define PDMA_V1_TXD4_FPORT_M GENMASK(27, 25)
#define PDMA_V1_TXD4_FPORT_SET(_v) FIELD_PREP(PDMA_V1_TXD4_FPORT_M, (_v))
#define PDMA_V2_TXD4_FPORT_M GENMASK(27, 24)
#define PDMA_V2_TXD4_FPORT_SET(_v) FIELD_PREP(PDMA_V2_TXD4_FPORT_M, (_v))
#define PDMA_V2_TXD5_FPORT_M GENMASK(19, 16)
#define PDMA_V2_TXD5_FPORT_SET(_v) FIELD_PREP(PDMA_V2_TXD5_FPORT_M, (_v))
/* PDMA RXD fields */
#define PDMA_RXD2_DDONE BIT(31)
#define PDMA_RXD2_LS0 BIT(30)
#define PDMA_V1_RXD2_PLEN0_M GENMASK(29, 16)
#define PDMA_V1_RXD2_PLEN0_GET(_v) FIELD_GET(PDMA_V1_RXD2_PLEN0_M, (_v))
#define PDMA_V1_RXD2_PLEN0_SET(_v) FIELD_PREP(PDMA_V1_RXD2_PLEN0_M, (_v))
#define PDMA_V2_RXD2_PLEN0_M GENMASK(23, 8)
#define PDMA_V2_RXD2_PLEN0_GET(_v) FIELD_GET(PDMA_V2_RXD2_PLEN0_M, (_v))
#define PDMA_V2_RXD2_PLEN0_SET(_v) FIELD_PREP(PDMA_V2_RXD2_PLEN0_M, (_v))
#endif /* _MTK_ETH_H_ */