From 3d833ad2cfc1ab503d9aae2967b7f10811bb3c9c Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Wed, 1 Mar 2023 11:56:04 +0000 Subject: [PATCH 7/7] net: ethernet: mtk_eth_soc: add paths and SerDes modes for MT7988 MT7988 comes with a built-in 2.5G PHY as well as USXGMII/10GBase-KR/5GBase-KR compatible SerDes lanes for external PHYs. Add support for configuring the MAC and SerDes parts for the new paths. Signed-off-by: Daniel Golle --- drivers/net/ethernet/mediatek/Kconfig | 7 + drivers/net/ethernet/mediatek/Makefile | 1 + drivers/net/ethernet/mediatek/mtk_eth_path.c | 154 +++- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 270 +++++- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 194 ++++- drivers/net/ethernet/mediatek/mtk_usxgmii.c | 835 +++++++++++++++++++ 6 files changed, 1428 insertions(+), 33 deletions(-) create mode 100644 drivers/net/ethernet/mediatek/mtk_usxgmii.c --- a/drivers/net/ethernet/mediatek/Kconfig +++ b/drivers/net/ethernet/mediatek/Kconfig @@ -24,6 +24,13 @@ config NET_MEDIATEK_SOC This driver supports the gigabit ethernet MACs in the MediaTek SoC family. +config NET_MEDIATEK_SOC_USXGMII + bool "Support USXGMII SerDes on MT7988" + depends on (ARCH_MEDIATEK && ARM64) || COMPILE_TEST + def_bool NET_MEDIATEK_SOC != n + help + Include support for 10G SerDes which can be found on MT7988. + config NET_MEDIATEK_STAR_EMAC tristate "MediaTek STAR Ethernet MAC support" select PHYLIB --- a/drivers/net/ethernet/mediatek/Makefile +++ b/drivers/net/ethernet/mediatek/Makefile @@ -5,6 +5,7 @@ obj-$(CONFIG_NET_MEDIATEK_SOC) += mtk_eth.o mtk_eth-y := mtk_eth_soc.o mtk_eth_path.o mtk_ppe.o mtk_ppe_debugfs.o mtk_ppe_offload.o +mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_USXGMII) += mtk_usxgmii.o mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed.o mtk_wed_mcu.o mtk_wed_wo.o ifdef CONFIG_DEBUG_FS mtk_eth-$(CONFIG_NET_MEDIATEK_SOC_WED) += mtk_wed_debugfs.o --- a/drivers/net/ethernet/mediatek/mtk_eth_path.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_path.c @@ -31,10 +31,20 @@ static const char *mtk_eth_path_name(u64 return "gmac2_rgmii"; case MTK_ETH_PATH_GMAC2_SGMII: return "gmac2_sgmii"; + case MTK_ETH_PATH_GMAC2_2P5GPHY: + return "gmac2_2p5gphy"; case MTK_ETH_PATH_GMAC2_GEPHY: return "gmac2_gephy"; + case MTK_ETH_PATH_GMAC3_SGMII: + return "gmac3_sgmii"; case MTK_ETH_PATH_GDM1_ESW: return "gdm1_esw"; + case MTK_ETH_PATH_GMAC1_USXGMII: + return "gmac1_usxgmii"; + case MTK_ETH_PATH_GMAC2_USXGMII: + return "gmac2_usxgmii"; + case MTK_ETH_PATH_GMAC3_USXGMII: + return "gmac3_usxgmii"; default: return "unknown path"; } @@ -42,8 +52,8 @@ static const char *mtk_eth_path_name(u64 static int set_mux_gdm1_to_gmac1_esw(struct mtk_eth *eth, u64 path) { + u32 val, mask, set, reg; bool updated = true; - u32 val, mask, set; switch (path) { case MTK_ETH_PATH_GMAC1_SGMII: @@ -59,10 +69,15 @@ static int set_mux_gdm1_to_gmac1_esw(str break; } + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) + reg = MTK_MAC_MISC_V3; + else + reg = MTK_MAC_MISC; + if (updated) { - val = mtk_r32(eth, MTK_MAC_MISC); + val = mtk_r32(eth, reg); val = (val & mask) | set; - mtk_w32(eth, val, MTK_MAC_MISC); + mtk_w32(eth, val, reg); } dev_dbg(eth->dev, "path %s in %s updated = %d\n", @@ -125,6 +140,31 @@ static int set_mux_u3_gmac2_to_qphy(stru return 0; } +static int set_mux_gmac2_to_2p5gphy(struct mtk_eth *eth, u64 path) +{ + unsigned int val = 0; + bool updated = true; + int mac_id = 0; + + regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val); + + switch (path) { + case MTK_ETH_PATH_GMAC2_2P5GPHY: + val &= ~(u32)SYSCFG0_SGMII_GMAC2_V2; + mac_id = MTK_GMAC2_ID; + break; + default: + updated = false; + break; + }; + + if (updated) + regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0, + SYSCFG0_SGMII_MASK, val); + + return 0; +} + static int set_mux_gmac1_gmac2_to_sgmii_rgmii(struct mtk_eth *eth, u64 path) { unsigned int val = 0; @@ -163,7 +203,61 @@ static int set_mux_gmac1_gmac2_to_sgmii_ return 0; } -static int set_mux_gmac12_to_gephy_sgmii(struct mtk_eth *eth, u64 path) +static int set_mux_gmac123_to_usxgmii(struct mtk_eth *eth, u64 path) +{ + unsigned int val = 0; + bool updated = true; + int mac_id = 0; + + dev_dbg(eth->dev, "path %s in %s updated = %d\n", + mtk_eth_path_name(path), __func__, updated); + + /* Disable SYSCFG1 SGMII */ + regmap_read(eth->ethsys, ETHSYS_SYSCFG0, &val); + + switch (path) { + case MTK_ETH_PATH_GMAC1_USXGMII: + val &= ~(u32)SYSCFG0_SGMII_GMAC1_V2; + mac_id = MTK_GMAC1_ID; + break; + case MTK_ETH_PATH_GMAC2_USXGMII: + val &= ~(u32)SYSCFG0_SGMII_GMAC2_V2; + mac_id = MTK_GMAC2_ID; + break; + case MTK_ETH_PATH_GMAC3_USXGMII: + val &= ~(u32)SYSCFG0_SGMII_GMAC3_V2; + mac_id = MTK_GMAC3_ID; + break; + default: + updated = false; + }; + + if (updated) { + regmap_update_bits(eth->ethsys, ETHSYS_SYSCFG0, + SYSCFG0_SGMII_MASK, val); + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3) && + mac_id == MTK_GMAC2_ID) { + regmap_update_bits(eth->infra, + TOP_MISC_NETSYS_PCS_MUX, + NETSYS_PCS_MUX_MASK, + MUX_G2_USXGMII_SEL); + } + } + + /* Enable XGDM Path */ + val = mtk_r32(eth, MTK_GDMA_EG_CTRL(mac_id)); + val |= MTK_GDMA_XGDM_SEL; + mtk_w32(eth, val, MTK_GDMA_EG_CTRL(mac_id)); + + dev_dbg(eth->dev, "path %s in %s updated = %d\n", + mtk_eth_path_name(path), __func__, updated); + + + return 0; +} + +static int set_mux_gmac123_to_gephy_sgmii(struct mtk_eth *eth, u64 path) { unsigned int val = 0; bool updated = true; @@ -180,6 +274,9 @@ static int set_mux_gmac12_to_gephy_sgmii case MTK_ETH_PATH_GMAC2_SGMII: val |= SYSCFG0_SGMII_GMAC2_V2; break; + case MTK_ETH_PATH_GMAC3_SGMII: + val |= SYSCFG0_SGMII_GMAC3_V2; + break; default: updated = false; } @@ -208,13 +305,25 @@ static const struct mtk_eth_muxc mtk_eth .cap_bit = MTK_ETH_MUX_U3_GMAC2_TO_QPHY, .set_path = set_mux_u3_gmac2_to_qphy, }, { + .name = "mux_gmac2_to_2p5gphy", + .cap_bit = MTK_ETH_MUX_GMAC2_TO_2P5GPHY, + .set_path = set_mux_gmac2_to_2p5gphy, + }, { .name = "mux_gmac1_gmac2_to_sgmii_rgmii", .cap_bit = MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII, .set_path = set_mux_gmac1_gmac2_to_sgmii_rgmii, }, { .name = "mux_gmac12_to_gephy_sgmii", .cap_bit = MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII, - .set_path = set_mux_gmac12_to_gephy_sgmii, + .set_path = set_mux_gmac123_to_gephy_sgmii, + }, { + .name = "mux_gmac123_to_gephy_sgmii", + .cap_bit = MTK_ETH_MUX_GMAC123_TO_GEPHY_SGMII, + .set_path = set_mux_gmac123_to_gephy_sgmii, + }, { + .name = "mux_gmac123_to_usxgmii", + .cap_bit = MTK_ETH_MUX_GMAC123_TO_USXGMII, + .set_path = set_mux_gmac123_to_usxgmii, }, }; @@ -243,16 +352,46 @@ static int mtk_eth_mux_setup(struct mtk_ } } + dev_dbg(eth->dev, "leaving mux_setup %s\n", + mtk_eth_path_name(path)); + out: return err; } +int mtk_gmac_usxgmii_path_setup(struct mtk_eth *eth, int mac_id) +{ + u64 path; + + path = (mac_id == MTK_GMAC1_ID) ? MTK_ETH_PATH_GMAC1_USXGMII : + (mac_id == MTK_GMAC2_ID) ? MTK_ETH_PATH_GMAC2_USXGMII : + MTK_ETH_PATH_GMAC3_USXGMII; + + /* Setup proper MUXes along the path */ + return mtk_eth_mux_setup(eth, path); +} + int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id) { u64 path; - path = (mac_id == 0) ? MTK_ETH_PATH_GMAC1_SGMII : - MTK_ETH_PATH_GMAC2_SGMII; + path = (mac_id == MTK_GMAC1_ID) ? MTK_ETH_PATH_GMAC1_SGMII : + (mac_id == MTK_GMAC2_ID) ? MTK_ETH_PATH_GMAC2_SGMII : + MTK_ETH_PATH_GMAC3_SGMII; + + /* Setup proper MUXes along the path */ + return mtk_eth_mux_setup(eth, path); +} + +int mtk_gmac_2p5gphy_path_setup(struct mtk_eth *eth, int mac_id) +{ + u64 path = 0; + + if (mac_id == MTK_GMAC2_ID) + path = MTK_ETH_PATH_GMAC2_2P5GPHY; + + if (!path) + return -EINVAL; /* Setup proper MUXes along the path */ return mtk_eth_mux_setup(eth, path); @@ -282,4 +421,3 @@ int mtk_gmac_rgmii_path_setup(struct mtk /* Setup proper MUXes along the path */ return mtk_eth_mux_setup(eth, path); } - --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -437,6 +437,23 @@ static void mtk_gmac0_rgmii_adjust(struc mtk_w32(eth, val, TRGMII_TCK_CTRL); } +static void mtk_setup_bridge_switch(struct mtk_eth *eth) +{ + int val; + + /* Force Port1 XGMAC Link Up */ + val = mtk_r32(eth, MTK_XGMAC_STS(MTK_GMAC1_ID)); + mtk_w32(eth, val | MTK_XGMAC_FORCE_LINK(MTK_GMAC1_ID), + MTK_XGMAC_STS(MTK_GMAC1_ID)); + + /* Adjust GSW bridge IPG to 11*/ + val = mtk_r32(eth, MTK_GSW_CFG); + val &= ~(GSWTX_IPG_MASK | GSWRX_IPG_MASK); + val |= (GSW_IPG_11 << GSWTX_IPG_SHIFT) | + (GSW_IPG_11 << GSWRX_IPG_SHIFT); + mtk_w32(eth, val, MTK_GSW_CFG); +} + static struct phylink_pcs *mtk_mac_select_pcs(struct phylink_config *config, phy_interface_t interface) { @@ -451,6 +468,12 @@ static struct phylink_pcs *mtk_mac_selec 0 : mac->id; return eth->sgmii_pcs[sid]; + } else if ((interface == PHY_INTERFACE_MODE_USXGMII || + interface == PHY_INTERFACE_MODE_10GKR || + interface == PHY_INTERFACE_MODE_5GBASER) && + MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3) && + mac->id != MTK_GMAC1_ID) { + return mtk_usxgmii_select_pcs(eth, mac->id); } return NULL; @@ -462,7 +485,7 @@ static void mtk_mac_config(struct phylin struct mtk_mac *mac = container_of(config, struct mtk_mac, phylink_config); struct mtk_eth *eth = mac->hw; - int val, ge_mode, err = 0; + int val, ge_mode, force_link, err = 0; u32 i; /* MT76x8 has no hardware settings between for the MAC */ @@ -506,6 +529,23 @@ static void mtk_mac_config(struct phylin goto init_err; } break; + case PHY_INTERFACE_MODE_USXGMII: + case PHY_INTERFACE_MODE_10GKR: + case PHY_INTERFACE_MODE_5GBASER: + if (MTK_HAS_CAPS(eth->soc->caps, MTK_USXGMII)) { + err = mtk_gmac_usxgmii_path_setup(eth, mac->id); + if (err) + goto init_err; + } + break; + case PHY_INTERFACE_MODE_INTERNAL: + if (mac->id == MTK_GMAC2_ID && + MTK_HAS_CAPS(eth->soc->caps, MTK_2P5GPHY)) { + err = mtk_gmac_2p5gphy_path_setup(eth, mac->id); + if (err) + goto init_err; + } + break; default: goto err_phy; } @@ -584,14 +624,78 @@ static void mtk_mac_config(struct phylin SYSCFG0_SGMII_MASK, ~(u32)SYSCFG0_SGMII_MASK); + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) { + mtk_xfi_pll_enable(eth); + mtk_sgmii_reset(eth, mac->id); + if (phylink_autoneg_inband(mode)) + mtk_sgmii_setup_phya_gen1(eth, mac->id); + else + mtk_sgmii_setup_phya_gen2(eth, mac->id); + } /* Save the syscfg0 value for mac_finish */ mac->syscfg0 = val; - } else if (phylink_autoneg_inband(mode)) { + } else if (state->interface != PHY_INTERFACE_MODE_USXGMII && + state->interface != PHY_INTERFACE_MODE_10GKR && + state->interface != PHY_INTERFACE_MODE_5GBASER && + phylink_autoneg_inband(mode)) { dev_err(eth->dev, - "In-band mode not supported in non SGMII mode!\n"); + "In-band mode not supported in non-SerDes modes!\n"); return; } + /* Setup gmac */ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3) && + (mtk_interface_mode_is_xgmii(state->interface) || + mac->interface == PHY_INTERFACE_MODE_INTERNAL)) { + mtk_w32(mac->hw, MTK_GDMA_XGDM_SEL, MTK_GDMA_EG_CTRL(mac->id)); + mtk_w32(mac->hw, MAC_MCR_FORCE_LINK_DOWN, MTK_MAC_MCR(mac->id)); + + switch (mac->id) { + case MTK_GMAC1_ID: + mtk_setup_bridge_switch(eth); + break; + case MTK_GMAC2_ID: + force_link = (mac->interface == + PHY_INTERFACE_MODE_INTERNAL) ? + MTK_XGMAC_FORCE_LINK(mac->id) : 0; + val = mtk_r32(eth, MTK_XGMAC_STS(mac->id)); + mtk_w32(eth, val | force_link, + MTK_XGMAC_STS(mac->id)); + break; + case MTK_GMAC3_ID: + val = mtk_r32(eth, MTK_XGMAC_STS(mac->id)); + mtk_w32(eth, val | MTK_XGMAC_FORCE_LINK(mac->id), + MTK_XGMAC_STS(mac->id)); + break; + } + } else { + val = mtk_r32(eth, MTK_GDMA_EG_CTRL(mac->id)); + mtk_w32(eth, val & ~MTK_GDMA_XGDM_SEL, + MTK_GDMA_EG_CTRL(mac->id)); + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) { + switch (mac->id) { + case MTK_GMAC2_ID: + case MTK_GMAC3_ID: + val = mtk_r32(eth, MTK_XGMAC_STS(mac->id)); + mtk_w32(eth, + val & ~MTK_XGMAC_FORCE_LINK(mac->id), + MTK_XGMAC_STS(mac->id)); + break; + } + } + +/* + if (mac->type != mac_type) { + if (atomic_read(&reset_pending) == 0) { + atomic_inc(&force); + schedule_work(ð->pending_work); + atomic_inc(&reset_pending); + } else + atomic_dec(&reset_pending); + } +*/ + } return; err_phy: @@ -632,11 +736,40 @@ static int mtk_mac_finish(struct phylink return 0; } -static void mtk_mac_pcs_get_state(struct phylink_config *config, +static void mtk_xgdm_pcs_get_state(struct mtk_mac *mac, + struct phylink_link_state *state) +{ + u32 sts = mtk_r32(mac->hw, MTK_XGMAC_STS(mac->id)); + + if (mac->id == MTK_GMAC2_ID) + sts = sts >> 16; + + state->link = FIELD_GET(MTK_USXGMII_PCS_LINK, sts); + if (!state->link) + return; + + state->duplex = DUPLEX_FULL; + state->interface = mac->interface; + + switch (FIELD_GET(MTK_USXGMII_PCS_MODE, sts)) { + case 0: + state->speed = SPEED_10000; + break; + case 1: + state->speed = SPEED_5000; + break; + case 2: + state->speed = SPEED_2500; + break; + case 3: + state->speed = SPEED_1000; + break; + } +} + +static void mtk_gdm_pcs_get_state(struct mtk_mac *mac, struct phylink_link_state *state) { - struct mtk_mac *mac = container_of(config, struct mtk_mac, - phylink_config); u32 pmsr = mtk_r32(mac->hw, MTK_MAC_MSR(mac->id)); state->link = (pmsr & MAC_MSR_LINK); @@ -664,15 +797,35 @@ static void mtk_mac_pcs_get_state(struct state->pause |= MLO_PAUSE_TX; } +static void mtk_mac_pcs_get_state(struct phylink_config *config, + struct phylink_link_state *state) +{ + struct mtk_mac *mac = container_of(config, struct mtk_mac, + phylink_config); + + if (mtk_interface_mode_is_xgmii(state->interface)) + mtk_xgdm_pcs_get_state(mac, state); + else + mtk_gdm_pcs_get_state(mac, state); +} + static void mtk_mac_link_down(struct phylink_config *config, unsigned int mode, phy_interface_t interface) { struct mtk_mac *mac = container_of(config, struct mtk_mac, phylink_config); - u32 mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id)); + u32 mcr; - mcr &= ~(MAC_MCR_TX_EN | MAC_MCR_RX_EN); - mtk_w32(mac->hw, mcr, MTK_MAC_MCR(mac->id)); + if (!mtk_interface_mode_is_xgmii(interface)) { + mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id)); + mcr &= ~(MAC_MCR_TX_EN | MAC_MCR_RX_EN); + mtk_w32(mac->hw, mcr, MTK_MAC_MCR(mac->id)); + } else if (mac->id != MTK_GMAC1_ID) { + mcr = mtk_r32(mac->hw, MTK_XMAC_MCR(mac->id)); + mcr &= 0xfffffff0; + mcr |= XMAC_MCR_TRX_DISABLE; + mtk_w32(mac->hw, mcr, MTK_XMAC_MCR(mac->id)); + } } static void mtk_set_queue_speed(struct mtk_eth *eth, unsigned int idx, @@ -744,13 +897,11 @@ static void mtk_set_queue_speed(struct m mtk_w32(eth, val, soc->reg_map->qdma.qtx_sch + ofs); } -static void mtk_mac_link_up(struct phylink_config *config, - struct phy_device *phy, - unsigned int mode, phy_interface_t interface, - int speed, int duplex, bool tx_pause, bool rx_pause) +static void mtk_gdm_mac_link_up(struct mtk_mac *mac, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, bool tx_pause, bool rx_pause) { - struct mtk_mac *mac = container_of(config, struct mtk_mac, - phylink_config); u32 mcr; mcr = mtk_r32(mac->hw, MTK_MAC_MCR(mac->id)); @@ -784,6 +935,47 @@ static void mtk_mac_link_up(struct phyli mtk_w32(mac->hw, mcr, MTK_MAC_MCR(mac->id)); } +static void mtk_xgdm_mac_link_up(struct mtk_mac *mac, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, bool tx_pause, bool rx_pause) +{ + u32 mcr; + + if (mac->id == MTK_GMAC1_ID) + return; + + mcr = mtk_r32(mac->hw, MTK_XMAC_MCR(mac->id)); + + mcr &= ~(XMAC_MCR_FORCE_TX_FC | XMAC_MCR_FORCE_RX_FC); + /* Configure pause modes - + * phylink will avoid these for half duplex + */ + if (tx_pause) + mcr |= XMAC_MCR_FORCE_TX_FC; + if (rx_pause) + mcr |= XMAC_MCR_FORCE_RX_FC; + + mcr &= ~(XMAC_MCR_TRX_DISABLE); + mtk_w32(mac->hw, mcr, MTK_XMAC_MCR(mac->id)); +} + +static void mtk_mac_link_up(struct phylink_config *config, + struct phy_device *phy, + unsigned int mode, phy_interface_t interface, + int speed, int duplex, bool tx_pause, bool rx_pause) +{ + struct mtk_mac *mac = container_of(config, struct mtk_mac, + phylink_config); + + if (mtk_interface_mode_is_xgmii(interface)) + mtk_xgdm_mac_link_up(mac, phy, mode, interface, speed, duplex, + tx_pause, rx_pause); + else + mtk_gdm_mac_link_up(mac, phy, mode, interface, speed, duplex, + tx_pause, rx_pause); +} + static const struct phylink_mac_ops mtk_phylink_ops = { .validate = phylink_generic_validate, .mac_select_pcs = mtk_mac_select_pcs, @@ -836,10 +1028,21 @@ static int mtk_mdio_init(struct mtk_eth } divider = min_t(unsigned int, DIV_ROUND_UP(MDC_MAX_FREQ, max_clk), 63); + /* Configure MDC Turbo Mode */ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) { + val = mtk_r32(eth, MTK_MAC_MISC_V3); + val |= MISC_MDC_TURBO; + mtk_w32(eth, val, MTK_MAC_MISC_V3); + } else { + val = mtk_r32(eth, MTK_PPSC); + val |= PPSC_MDC_TURBO; + mtk_w32(eth, val, MTK_PPSC); + } + /* Configure MDC Divider */ val = mtk_r32(eth, MTK_PPSC); val &= ~PPSC_MDC_CFG; - val |= FIELD_PREP(PPSC_MDC_CFG, divider) | PPSC_MDC_TURBO; + val |= FIELD_PREP(PPSC_MDC_CFG, divider); mtk_w32(eth, val, MTK_PPSC); dev_dbg(eth->dev, "MDC is running on %d Hz\n", MDC_MAX_FREQ / divider); @@ -4415,8 +4618,8 @@ static int mtk_add_mac(struct mtk_eth *e const __be32 *_id = of_get_property(np, "reg", NULL); phy_interface_t phy_mode; struct phylink *phylink; - struct mtk_mac *mac; int id, err; + struct mtk_mac *mac; int txqs = 1; if (!_id) { @@ -4518,6 +4721,32 @@ static int mtk_add_mac(struct mtk_eth *e mac->phylink_config.supported_interfaces); } + if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_USXGMII)) { + if (id == MTK_GMAC1_ID) { + mac->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | + MAC_SYM_PAUSE | + MAC_10000FD; + phy_interface_zero( + mac->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_INTERNAL, + mac->phylink_config.supported_interfaces); + } else { + mac->phylink_config.mac_capabilities |= MAC_5000FD | MAC_10000FD; + __set_bit(PHY_INTERFACE_MODE_5GBASER, + mac->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_10GKR, + mac->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_USXGMII, + mac->phylink_config.supported_interfaces); + } + } + + if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_2P5GPHY)) { + if (id == MTK_GMAC2_ID) + __set_bit(PHY_INTERFACE_MODE_INTERNAL, + mac->phylink_config.supported_interfaces); + } + phylink = phylink_create(&mac->phylink_config, of_fwnode_handle(mac->of_node), phy_mode, &mtk_phylink_ops); @@ -4705,6 +4934,13 @@ static int mtk_probe(struct platform_dev if (err) return err; + } + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_USXGMII)) { + err = mtk_usxgmii_init(eth); + + if (err) + return err; } if (eth->soc->required_pctl) { --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -126,6 +126,11 @@ #define MTK_GDMA_TO_PDMA 0x0 #define MTK_GDMA_DROP_ALL 0x7777 +/* GDM Egress Control Register */ +#define MTK_GDMA_EG_CTRL(x) ((x == MTK_GMAC3_ID) ? \ + 0x544 : 0x504 + (x * 0x1000)) +#define MTK_GDMA_XGDM_SEL BIT(31) + /* Unicast Filter MAC Address Register - Low */ #define MTK_GDMA_MAC_ADRL(x) (0x508 + (x * 0x1000)) @@ -386,7 +391,26 @@ #define PHY_IAC_TIMEOUT HZ #define MTK_MAC_MISC 0x1000c +#define MTK_MAC_MISC_V3 0x10010 #define MTK_MUX_TO_ESW BIT(0) +#define MISC_MDC_TURBO BIT(4) + +/* XMAC status registers */ +#define MTK_XGMAC_STS(x) ((x == MTK_GMAC3_ID) ? 0x1001C : 0x1000C) +#define MTK_XGMAC_FORCE_LINK(x) ((x == MTK_GMAC2_ID) ? BIT(31) : BIT(15)) +#define MTK_USXGMII_PCS_LINK BIT(8) +#define MTK_XGMAC_RX_FC BIT(5) +#define MTK_XGMAC_TX_FC BIT(4) +#define MTK_USXGMII_PCS_MODE GENMASK(3, 1) +#define MTK_XGMAC_LINK_STS BIT(0) + +/* GSW bridge registers */ +#define MTK_GSW_CFG (0x10080) +#define GSWTX_IPG_MASK GENMASK(19, 16) +#define GSWTX_IPG_SHIFT 16 +#define GSWRX_IPG_MASK GENMASK(3, 0) +#define GSWRX_IPG_SHIFT 0 +#define GSW_IPG_11 11 /* Mac control registers */ #define MTK_MAC_MCR(x) (0x10100 + (x * 0x100)) @@ -411,6 +435,17 @@ #define MAC_MCR_FORCE_LINK BIT(0) #define MAC_MCR_FORCE_LINK_DOWN (MAC_MCR_FORCE_MODE) +/* Mac EEE control registers */ +#define MTK_MAC_EEE(x) (0x10104 + (x * 0x100)) +#define MAC_EEE_WAKEUP_TIME_1000 GENMASK(31, 24) +#define MAC_EEE_WAKEUP_TIME_100 GENMASK(23, 16) +#define MAC_EEE_LPI_TXIDLE_THD GENMASK(15, 8) +#define MAC_EEE_RESV0 GENMASK(7, 4) +#define MAC_EEE_CKG_TXILDE BIT(3) +#define MAC_EEE_CKG_RXLPI BIT(2) +#define MAC_EEE_TX_DOWN_REQ BIT(1) +#define MAC_EEE_LPI_MODE BIT(0) + /* Mac status registers */ #define MTK_MAC_MSR(x) (0x10108 + (x * 0x100)) #define MAC_MSR_EEE1G BIT(7) @@ -455,6 +490,12 @@ #define INTF_MODE_RGMII_1000 (TRGMII_MODE | TRGMII_CENTRAL_ALIGNED) #define INTF_MODE_RGMII_10_100 0 +/* XFI Mac control registers */ +#define MTK_XMAC_MCR(x) (0x12000 + ((x - 1) * 0x1000)) +#define XMAC_MCR_TRX_DISABLE 0xf +#define XMAC_MCR_FORCE_TX_FC BIT(5) +#define XMAC_MCR_FORCE_RX_FC BIT(4) + /* GPIO port control registers for GMAC 2*/ #define GPIO_OD33_CTRL8 0x4c0 #define GPIO_BIAS_CTRL 0xed0 @@ -480,6 +521,7 @@ #define SYSCFG0_SGMII_GMAC2 ((3 << 8) & SYSCFG0_SGMII_MASK) #define SYSCFG0_SGMII_GMAC1_V2 BIT(9) #define SYSCFG0_SGMII_GMAC2_V2 BIT(8) +#define SYSCFG0_SGMII_GMAC3_V2 BIT(7) /* ethernet subsystem clock register */ @@ -506,16 +548,91 @@ #define ETHSYS_DMA_AG_MAP_QDMA BIT(1) #define ETHSYS_DMA_AG_MAP_PPE BIT(2) +/* USXGMII subsystem config registers */ +/* Register to control speed */ +#define RG_PHY_TOP_SPEED_CTRL1 0x80C +#define USXGMII_RATE_UPDATE_MODE BIT(31) +#define USXGMII_MAC_CK_GATED BIT(29) +#define USXGMII_IF_FORCE_EN BIT(28) +#define USXGMII_RATE_ADAPT_MODE GENMASK(10, 8) +#define USXGMII_RATE_ADAPT_MODE_X1 0 +#define USXGMII_RATE_ADAPT_MODE_X2 1 +#define USXGMII_RATE_ADAPT_MODE_X4 2 +#define USXGMII_RATE_ADAPT_MODE_X10 3 +#define USXGMII_RATE_ADAPT_MODE_X100 4 +#define USXGMII_RATE_ADAPT_MODE_X5 5 +#define USXGMII_RATE_ADAPT_MODE_X50 6 +#define USXGMII_XFI_RX_MODE GENMASK(6, 4) +#define USXGMII_XFI_RX_MODE_10G 0 +#define USXGMII_XFI_RX_MODE_5G 1 +#define USXGMII_XFI_TX_MODE GENMASK(2, 0) +#define USXGMII_XFI_TX_MODE_10G 0 +#define USXGMII_XFI_TX_MODE_5G 1 + +/* Register to control PCS AN */ +#define RG_PCS_AN_CTRL0 0x810 +#define USXGMII_AN_RESTART BIT(31) +#define USXGMII_AN_SYNC_CNT GENMASK(30, 11) +#define USXGMII_AN_ENABLE BIT(0) + +#define RG_PCS_AN_CTRL2 0x818 +#define USXGMII_LINK_TIMER_IDLE_DETECT GENMASK(29, 20) +#define USXGMII_LINK_TIMER_COMP_ACK_DETECT GENMASK(19, 10) +#define USXGMII_LINK_TIMER_AN_RESTART GENMASK(9, 0) + +/* Register to read PCS AN status */ +#define RG_PCS_AN_STS0 0x81c +#define USXGMII_LPA_SPEED_MASK GENMASK(11, 9) +#define USXGMII_LPA_SPEED_10 0 +#define USXGMII_LPA_SPEED_100 1 +#define USXGMII_LPA_SPEED_1000 2 +#define USXGMII_LPA_SPEED_10000 3 +#define USXGMII_LPA_SPEED_2500 4 +#define USXGMII_LPA_SPEED_5000 5 +#define USXGMII_LPA_DUPLEX BIT(12) +#define USXGMII_LPA_LINK BIT(15) +#define USXGMII_LPA_LATCH BIT(31) + +/* Register to control USXGMII XFI PLL digital */ +#define XFI_PLL_DIG_GLB8 0x08 +#define RG_XFI_PLL_EN BIT(31) + +/* Register to control USXGMII XFI PLL analog */ +#define XFI_PLL_ANA_GLB8 0x108 +#define RG_XFI_PLL_ANA_SWWA 0x02283248 + /* Infrasys subsystem config registers */ #define INFRA_MISC2 0x70c #define CO_QPHY_SEL BIT(0) #define GEPHY_MAC_SEL BIT(1) +/* Toprgu subsystem config registers */ +#define TOPRGU_SWSYSRST 0x18 +#define SWSYSRST_UNLOCK_KEY GENMASK(31, 24) +#define SWSYSRST_XFI_PLL_GRST BIT(16) +#define SWSYSRST_XFI_PEXPT1_GRST BIT(15) +#define SWSYSRST_XFI_PEXPT0_GRST BIT(14) +#define SWSYSRST_XFI1_GRST BIT(13) +#define SWSYSRST_XFI0_GRST BIT(12) +#define SWSYSRST_SGMII1_GRST BIT(2) +#define SWSYSRST_SGMII0_GRST BIT(1) +#define TOPRGU_SWSYSRST_EN 0xFC + /* Top misc registers */ +#define TOP_MISC_NETSYS_PCS_MUX 0x84 +#define NETSYS_PCS_MUX_MASK GENMASK(1, 0) +#define MUX_G2_USXGMII_SEL BIT(1) +#define MUX_HSGMII1_G1_SEL BIT(0) + #define USB_PHY_SWITCH_REG 0x218 #define QPHY_SEL_MASK GENMASK(1, 0) #define SGMII_QPHY_SEL 0x2 +/* MDIO control */ +#define MII_MMD_ACC_CTL_REG 0x0d +#define MII_MMD_ADDR_DATA_REG 0x0e +#define MMD_OP_MODE_DATA BIT(14) + /* MT7628/88 specific stuff */ #define MT7628_PDMA_OFFSET 0x0800 #define MT7628_SDM_OFFSET 0x0c00 @@ -809,13 +926,6 @@ enum mtk_gmac_id { MTK_GMAC_ID_MAX }; -/* GDM Type */ -enum mtk_gdm_type { - MTK_GDM_TYPE = 0, - MTK_XGDM_TYPE, - MTK_GDM_TYPE_MAX -}; - enum mtk_tx_buf_type { MTK_TYPE_SKB, MTK_TYPE_XDP_TX, @@ -902,6 +1012,7 @@ enum mkt_eth_capabilities { MTK_TRGMII_BIT, MTK_SGMII_BIT, MTK_USXGMII_BIT, + MTK_2P5GPHY_BIT, MTK_ESW_BIT, MTK_GEPHY_BIT, MTK_MUX_BIT, @@ -922,6 +1033,7 @@ enum mkt_eth_capabilities { MTK_ETH_MUX_GDM1_TO_GMAC1_ESW_BIT, MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY_BIT, MTK_ETH_MUX_U3_GMAC2_TO_QPHY_BIT, + MTK_ETH_MUX_GMAC2_TO_2P5GPHY_BIT, MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII_BIT, MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII_BIT, MTK_ETH_MUX_GMAC123_TO_GEPHY_SGMII_BIT, @@ -933,6 +1045,7 @@ enum mkt_eth_capabilities { MTK_ETH_PATH_GMAC1_SGMII_BIT, MTK_ETH_PATH_GMAC2_RGMII_BIT, MTK_ETH_PATH_GMAC2_SGMII_BIT, + MTK_ETH_PATH_GMAC2_2P5GPHY_BIT, MTK_ETH_PATH_GMAC2_GEPHY_BIT, MTK_ETH_PATH_GMAC3_SGMII_BIT, MTK_ETH_PATH_GDM1_ESW_BIT, @@ -946,6 +1059,7 @@ enum mkt_eth_capabilities { #define MTK_TRGMII BIT_ULL(MTK_TRGMII_BIT) #define MTK_SGMII BIT_ULL(MTK_SGMII_BIT) #define MTK_USXGMII BIT_ULL(MTK_USXGMII_BIT) +#define MTK_2P5GPHY BIT_ULL(MTK_2P5GPHY_BIT) #define MTK_ESW BIT_ULL(MTK_ESW_BIT) #define MTK_GEPHY BIT_ULL(MTK_GEPHY_BIT) #define MTK_MUX BIT_ULL(MTK_MUX_BIT) @@ -968,6 +1082,8 @@ enum mkt_eth_capabilities { BIT_ULL(MTK_ETH_MUX_GMAC2_GMAC0_TO_GEPHY_BIT) #define MTK_ETH_MUX_U3_GMAC2_TO_QPHY \ BIT_ULL(MTK_ETH_MUX_U3_GMAC2_TO_QPHY_BIT) +#define MTK_ETH_MUX_GMAC2_TO_2P5GPHY \ + BIT_ULL(MTK_ETH_MUX_GMAC2_TO_2P5GPHY_BIT) #define MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII \ BIT_ULL(MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII_BIT) #define MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII \ @@ -983,6 +1099,7 @@ enum mkt_eth_capabilities { #define MTK_ETH_PATH_GMAC1_SGMII BIT_ULL(MTK_ETH_PATH_GMAC1_SGMII_BIT) #define MTK_ETH_PATH_GMAC2_RGMII BIT_ULL(MTK_ETH_PATH_GMAC2_RGMII_BIT) #define MTK_ETH_PATH_GMAC2_SGMII BIT_ULL(MTK_ETH_PATH_GMAC2_SGMII_BIT) +#define MTK_ETH_PATH_GMAC2_2P5GPHY BIT_ULL(MTK_ETH_PATH_GMAC2_2P5GPHY_BIT) #define MTK_ETH_PATH_GMAC2_GEPHY BIT_ULL(MTK_ETH_PATH_GMAC2_GEPHY_BIT) #define MTK_ETH_PATH_GMAC3_SGMII BIT_ULL(MTK_ETH_PATH_GMAC3_SGMII_BIT) #define MTK_ETH_PATH_GDM1_ESW BIT_ULL(MTK_ETH_PATH_GDM1_ESW_BIT) @@ -996,6 +1113,7 @@ enum mkt_eth_capabilities { #define MTK_GMAC2_RGMII (MTK_ETH_PATH_GMAC2_RGMII | MTK_RGMII) #define MTK_GMAC2_SGMII (MTK_ETH_PATH_GMAC2_SGMII | MTK_SGMII) #define MTK_GMAC2_GEPHY (MTK_ETH_PATH_GMAC2_GEPHY | MTK_GEPHY) +#define MTK_GMAC2_2P5GPHY (MTK_ETH_PATH_GMAC2_2P5GPHY | MTK_2P5GPHY) #define MTK_GMAC3_SGMII (MTK_ETH_PATH_GMAC3_SGMII | MTK_SGMII) #define MTK_GDM1_ESW (MTK_ETH_PATH_GDM1_ESW | MTK_ESW) #define MTK_GMAC1_USXGMII (MTK_ETH_PATH_GMAC1_USXGMII | MTK_USXGMII) @@ -1019,6 +1137,10 @@ enum mkt_eth_capabilities { (MTK_ETH_MUX_GMAC1_GMAC2_TO_SGMII_RGMII | MTK_MUX | \ MTK_SHARED_SGMII) +/* 2: GMAC2 -> XGMII */ +#define MTK_MUX_GMAC2_TO_2P5GPHY \ + (MTK_ETH_MUX_GMAC2_TO_2P5GPHY | MTK_MUX | MTK_INFRA) + /* 0: GMACx -> GEPHY, 1: GMACx -> SGMII where x is 1 or 2 */ #define MTK_MUX_GMAC12_TO_GEPHY_SGMII \ (MTK_ETH_MUX_GMAC12_TO_GEPHY_SGMII | MTK_MUX) @@ -1077,7 +1199,8 @@ enum mkt_eth_capabilities { MTK_MUX_GMAC123_TO_GEPHY_SGMII | \ MTK_NETSYS_V3 | MTK_RSTCTRL_PPE1 | \ MTK_GMAC1_USXGMII | MTK_GMAC2_USXGMII | \ - MTK_GMAC3_USXGMII | MTK_MUX_GMAC123_TO_USXGMII) + MTK_GMAC3_USXGMII | MTK_MUX_GMAC123_TO_USXGMII | \ + MTK_GMAC2_2P5GPHY | MTK_MUX_GMAC2_TO_2P5GPHY) struct mtk_tx_dma_desc_info { dma_addr_t addr; @@ -1183,6 +1306,22 @@ struct mtk_soc_data { #define MTK_DMA_MONITOR_TIMEOUT msecs_to_jiffies(1000) +/* struct mtk_usxgmii_pcs - This structure holds each usxgmii regmap and + * associated data + * @regmap: The register map pointing at the range used to setup + * USXGMII modes + * @interface: Currently selected interface mode + * @id: The element is used to record the index of PCS + * @pcs: Phylink PCS structure + */ +struct mtk_usxgmii_pcs { + struct mtk_eth *eth; + struct regmap *regmap; + phy_interface_t interface; + u8 id; + struct phylink_pcs pcs; +}; + /* struct mtk_eth - This is the main datasructure for holding the state * of the driver * @dev: The device pointer @@ -1203,6 +1342,11 @@ struct mtk_soc_data { * @infra: The register map pointing at the range used to setup * SGMII and GePHY path * @sgmii_pcs: Pointers to mtk-pcs-lynxi phylink_pcs instances + * @usxgmii_pll: The register map pointing at the range used to control + * the USXGMII SerDes PLL + * @regmap_pextp: The register map pointing at the range used to setup + * PHYA + * @usxgmii_pcs: Pointer to array of pointers to struct for USXGMII PCS * @pctl: The register map pointing at the range used to setup * GMAC port drive/slew values * @dma_refcnt: track how many netdevs are using the DMA engine @@ -1244,7 +1388,11 @@ struct mtk_eth { unsigned long sysclk; struct regmap *ethsys; struct regmap *infra; + struct regmap *toprgu; struct phylink_pcs **sgmii_pcs; + struct regmap *usxgmii_pll; + struct regmap **regmap_pextp; + struct mtk_usxgmii_pcs **usxgmii_pcs; struct regmap *pctl; bool hwlro; refcount_t dma_refcnt; @@ -1400,6 +1548,19 @@ static inline u32 mtk_get_ib2_multicast_ return MTK_FOE_IB2_MULTICAST; } +static inline bool mtk_interface_mode_is_xgmii(phy_interface_t interface) +{ + switch (interface) { + case PHY_INTERFACE_MODE_USXGMII: + case PHY_INTERFACE_MODE_10GKR: + case PHY_INTERFACE_MODE_5GBASER: + return true; + break; + default: + return false; + } +} + /* read the hardware status register */ void mtk_stats_update_mac(struct mtk_mac *mac); @@ -1407,8 +1568,10 @@ void mtk_w32(struct mtk_eth *eth, u32 va u32 mtk_r32(struct mtk_eth *eth, unsigned reg); int mtk_gmac_sgmii_path_setup(struct mtk_eth *eth, int mac_id); +int mtk_gmac_2p5gphy_path_setup(struct mtk_eth *eth, int mac_id); int mtk_gmac_gephy_path_setup(struct mtk_eth *eth, int mac_id); int mtk_gmac_rgmii_path_setup(struct mtk_eth *eth, int mac_id); +int mtk_gmac_usxgmii_path_setup(struct mtk_eth *eth, int mac_id); int mtk_eth_offload_init(struct mtk_eth *eth); int mtk_eth_setup_tc(struct net_device *dev, enum tc_setup_type type, @@ -1418,5 +1581,20 @@ int mtk_flow_offload_cmd(struct mtk_eth void mtk_flow_offload_cleanup(struct mtk_eth *eth, struct list_head *list); void mtk_eth_set_dma_device(struct mtk_eth *eth, struct device *dma_dev); +#ifdef CONFIG_NET_MEDIATEK_SOC_USXGMII +struct phylink_pcs *mtk_usxgmii_select_pcs(struct mtk_eth *eth, int id); +int mtk_usxgmii_init(struct mtk_eth *eth); +int mtk_xfi_pll_enable(struct mtk_eth *eth); +void mtk_sgmii_setup_phya_gen1(struct mtk_eth *eth, int mac_id); +void mtk_sgmii_setup_phya_gen2(struct mtk_eth *eth, int mac_id); +void mtk_sgmii_reset(struct mtk_eth *eth, int mac_id); +#else +static inline struct phylink_pcs *mtk_usxgmii_select_pcs(struct mtk_eth *eth, int id) { return NULL; } +static inline int mtk_usxgmii_init(struct mtk_eth *eth) { return 0; } +static inline int mtk_xfi_pll_enable(struct mtk_eth *eth) { return 0; } +static inline void mtk_sgmii_setup_phya_gen1(struct mtk_eth *eth, int mac_id) { } +static inline void mtk_sgmii_setup_phya_gen2(struct mtk_eth *eth, int mac_id) { } +static inline void mtk_sgmii_reset(struct mtk_eth *eth, int mac_id) { } +#endif /* NET_MEDIATEK_SOC_USXGMII */ #endif /* MTK_ETH_H */ --- /dev/null +++ b/drivers/net/ethernet/mediatek/mtk_usxgmii.c @@ -0,0 +1,835 @@ +/* SPDX-License-Identifier: GPL-2.0 + * + * Copyright (c) 2022 MediaTek Inc. + * Author: Henry Yen + * Daniel Golle + */ + +#include +#include +#include +#include "mtk_eth_soc.h" + +static struct mtk_usxgmii_pcs *pcs_to_mtk_usxgmii_pcs(struct phylink_pcs *pcs) +{ + return container_of(pcs, struct mtk_usxgmii_pcs, pcs); +} + +static int mtk_xfi_pextp_init(struct mtk_eth *eth) +{ + struct device *dev = eth->dev; + struct device_node *r = dev->of_node; + struct device_node *np; + int i; + + eth->regmap_pextp = devm_kcalloc(dev, eth->soc->num_devs, sizeof(eth->regmap_pextp), GFP_KERNEL); + if (!eth->regmap_pextp) + return -ENOMEM; + + for (i = 0; i < eth->soc->num_devs; i++) { + np = of_parse_phandle(r, "mediatek,xfi_pextp", i); + if (!np) + break; + + eth->regmap_pextp[i] = syscon_node_to_regmap(np); + if (IS_ERR(eth->regmap_pextp[i])) + return PTR_ERR(eth->regmap_pextp[i]); + } + + return 0; +} + +static int mtk_xfi_pll_init(struct mtk_eth *eth) +{ + struct device_node *r = eth->dev->of_node; + struct device_node *np; + + np = of_parse_phandle(r, "mediatek,xfi_pll", 0); + if (!np) + return -1; + + eth->usxgmii_pll = syscon_node_to_regmap(np); + if (IS_ERR(eth->usxgmii_pll)) + return PTR_ERR(eth->usxgmii_pll); + + return 0; +} + +static int mtk_toprgu_init(struct mtk_eth *eth) +{ + struct device_node *r = eth->dev->of_node; + struct device_node *np; + + np = of_parse_phandle(r, "mediatek,toprgu", 0); + if (!np) + return -1; + + eth->toprgu = syscon_node_to_regmap(np); + if (IS_ERR(eth->toprgu)) + return PTR_ERR(eth->toprgu); + + return 0; +} + +int mtk_xfi_pll_enable(struct mtk_eth *eth) +{ + u32 val = 0; + + if (!eth->usxgmii_pll) + return -EINVAL; + + /* Add software workaround for USXGMII PLL TCL issue */ + regmap_write(eth->usxgmii_pll, XFI_PLL_ANA_GLB8, RG_XFI_PLL_ANA_SWWA); + + regmap_read(eth->usxgmii_pll, XFI_PLL_DIG_GLB8, &val); + val |= RG_XFI_PLL_EN; + regmap_write(eth->usxgmii_pll, XFI_PLL_DIG_GLB8, val); + + return 0; +} + +static int mtk_mac2xgmii_id(struct mtk_eth *eth, int mac_id) +{ + int xgmii_id = mac_id; + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) { + switch (mac_id) { + case MTK_GMAC1_ID: + case MTK_GMAC2_ID: + xgmii_id = 1; + break; + case MTK_GMAC3_ID: + xgmii_id = 0; + break; + default: + xgmii_id = -1; + } + } + + return xgmii_id; +} + +static int mtk_xgmii2mac_id(struct mtk_eth *eth, int xgmii_id) +{ + int mac_id = xgmii_id; + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) { + switch (xgmii_id) { + case 0: + mac_id = 2; + break; + case 1: + mac_id = 1; + break; + default: + mac_id = -1; + } + } + + return mac_id; +} + + +static void mtk_usxgmii_setup_phya_usxgmii(struct mtk_usxgmii_pcs *mpcs) +{ + struct regmap *pextp; + + if (!mpcs->eth) + return; + + pextp = mpcs->eth->regmap_pextp[mpcs->id]; + if (!pextp) + return; + + /* Setup operation mode */ + regmap_write(pextp, 0x9024, 0x00C9071C); + regmap_write(pextp, 0x2020, 0xAA8585AA); + regmap_write(pextp, 0x2030, 0x0C020707); + regmap_write(pextp, 0x2034, 0x0E050F0F); + regmap_write(pextp, 0x2040, 0x00140032); + regmap_write(pextp, 0x50F0, 0x00C014AA); + regmap_write(pextp, 0x50E0, 0x3777C12B); + regmap_write(pextp, 0x506C, 0x005F9CFF); + regmap_write(pextp, 0x5070, 0x9D9DFAFA); + regmap_write(pextp, 0x5074, 0x27273F3F); + regmap_write(pextp, 0x5078, 0xA7883C68); + regmap_write(pextp, 0x507C, 0x11661166); + regmap_write(pextp, 0x5080, 0x0E000AAF); + regmap_write(pextp, 0x5084, 0x08080D0D); + regmap_write(pextp, 0x5088, 0x02030909); + regmap_write(pextp, 0x50E4, 0x0C0C0000); + regmap_write(pextp, 0x50E8, 0x04040000); + regmap_write(pextp, 0x50EC, 0x0F0F0C06); + regmap_write(pextp, 0x50A8, 0x506E8C8C); + regmap_write(pextp, 0x6004, 0x18190000); + regmap_write(pextp, 0x00F8, 0x01423342); + /* Force SGDT_OUT off and select PCS */ + regmap_write(pextp, 0x00F4, 0x80201F20); + /* Force GLB_CKDET_OUT */ + regmap_write(pextp, 0x0030, 0x00050C00); + /* Force AEQ on */ + regmap_write(pextp, 0x0070, 0x02002800); + ndelay(1020); + /* Setup DA default value */ + regmap_write(pextp, 0x30B0, 0x00000020); + regmap_write(pextp, 0x3028, 0x00008A01); + regmap_write(pextp, 0x302C, 0x0000A884); + regmap_write(pextp, 0x3024, 0x00083002); + regmap_write(pextp, 0x3010, 0x00022220); + regmap_write(pextp, 0x5064, 0x0F020A01); + regmap_write(pextp, 0x50B4, 0x06100600); + regmap_write(pextp, 0x3048, 0x40704000); + regmap_write(pextp, 0x3050, 0xA8000000); + regmap_write(pextp, 0x3054, 0x000000AA); + regmap_write(pextp, 0x306C, 0x00000F00); + regmap_write(pextp, 0xA060, 0x00040000); + regmap_write(pextp, 0x90D0, 0x00000001); + /* Release reset */ + regmap_write(pextp, 0x0070, 0x0200E800); + udelay(150); + /* Switch to P0 */ + regmap_write(pextp, 0x0070, 0x0200C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0200C101); + udelay(15); + /* Switch to Gen3 */ + regmap_write(pextp, 0x0070, 0x0202C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0202C101); + udelay(100); + regmap_write(pextp, 0x30B0, 0x00000030); + regmap_write(pextp, 0x00F4, 0x80201F00); + regmap_write(pextp, 0x3040, 0x30000000); + udelay(400); +} + +static void mtk_usxgmii_setup_phya_5gbaser(struct mtk_usxgmii_pcs *mpcs) +{ + struct regmap *pextp; + + if (!mpcs->eth) + return; + + pextp = mpcs->eth->regmap_pextp[mpcs->id]; + if (!pextp) + return; + + /* Setup operation mode */ + regmap_write(pextp, 0x9024, 0x00D9071C); + regmap_write(pextp, 0x2020, 0xAAA5A5AA); + regmap_write(pextp, 0x2030, 0x0C020707); + regmap_write(pextp, 0x2034, 0x0E050F0F); + regmap_write(pextp, 0x2040, 0x00140032); + regmap_write(pextp, 0x50F0, 0x00C018AA); + regmap_write(pextp, 0x50E0, 0x3777812B); + regmap_write(pextp, 0x506C, 0x005C9CFF); + regmap_write(pextp, 0x5070, 0x9DFAFAFA); + regmap_write(pextp, 0x5074, 0x273F3F3F); + regmap_write(pextp, 0x5078, 0xA8883868); + regmap_write(pextp, 0x507C, 0x14661466); + regmap_write(pextp, 0x5080, 0x0E001ABF); + regmap_write(pextp, 0x5084, 0x080B0D0D); + regmap_write(pextp, 0x5088, 0x02050909); + regmap_write(pextp, 0x50E4, 0x0C000000); + regmap_write(pextp, 0x50E8, 0x04000000); + regmap_write(pextp, 0x50EC, 0x0F0F0C06); + regmap_write(pextp, 0x50A8, 0x50808C8C); + regmap_write(pextp, 0x6004, 0x18000000); + regmap_write(pextp, 0x00F8, 0x00A132A1); + /* Force SGDT_OUT off and select PCS */ + regmap_write(pextp, 0x00F4, 0x80201F20); + /* Force GLB_CKDET_OUT */ + regmap_write(pextp, 0x0030, 0x00050C00); + /* Force AEQ on */ + regmap_write(pextp, 0x0070, 0x02002800); + ndelay(1020); + /* Setup DA default value */ + regmap_write(pextp, 0x30B0, 0x00000020); + regmap_write(pextp, 0x3028, 0x00008A01); + regmap_write(pextp, 0x302C, 0x0000A884); + regmap_write(pextp, 0x3024, 0x00083002); + regmap_write(pextp, 0x3010, 0x00022220); + regmap_write(pextp, 0x5064, 0x0F020A01); + regmap_write(pextp, 0x50B4, 0x06100600); + regmap_write(pextp, 0x3048, 0x40704000); + regmap_write(pextp, 0x3050, 0xA8000000); + regmap_write(pextp, 0x3054, 0x000000AA); + regmap_write(pextp, 0x306C, 0x00000F00); + regmap_write(pextp, 0xA060, 0x00040000); + regmap_write(pextp, 0x90D0, 0x00000003); + /* Release reset */ + regmap_write(pextp, 0x0070, 0x0200E800); + udelay(150); + /* Switch to P0 */ + regmap_write(pextp, 0x0070, 0x0200C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0200C101); + udelay(15); + /* Switch to Gen3 */ + regmap_write(pextp, 0x0070, 0x0202C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0202C101); + udelay(100); + regmap_write(pextp, 0x30B0, 0x00000030); + regmap_write(pextp, 0x00F4, 0x80201F00); + regmap_write(pextp, 0x3040, 0x30000000); + udelay(400); +} + +static void mtk_usxgmii_setup_phya_10gbaser(struct mtk_usxgmii_pcs *mpcs) +{ + struct regmap *pextp; + + if (!mpcs->eth) + return; + + pextp = mpcs->eth->regmap_pextp[mpcs->id]; + if (!pextp) + return; + + /* Setup operation mode */ + regmap_write(pextp, 0x9024, 0x00C9071C); + regmap_write(pextp, 0x2020, 0xAA8585AA); + regmap_write(pextp, 0x2030, 0x0C020707); + regmap_write(pextp, 0x2034, 0x0E050F0F); + regmap_write(pextp, 0x2040, 0x00140032); + regmap_write(pextp, 0x50F0, 0x00C014AA); + regmap_write(pextp, 0x50E0, 0x3777C12B); + regmap_write(pextp, 0x506C, 0x005F9CFF); + regmap_write(pextp, 0x5070, 0x9D9DFAFA); + regmap_write(pextp, 0x5074, 0x27273F3F); + regmap_write(pextp, 0x5078, 0xA7883C68); + regmap_write(pextp, 0x507C, 0x11661166); + regmap_write(pextp, 0x5080, 0x0E000AAF); + regmap_write(pextp, 0x5084, 0x08080D0D); + regmap_write(pextp, 0x5088, 0x02030909); + regmap_write(pextp, 0x50E4, 0x0C0C0000); + regmap_write(pextp, 0x50E8, 0x04040000); + regmap_write(pextp, 0x50EC, 0x0F0F0C06); + regmap_write(pextp, 0x50A8, 0x506E8C8C); + regmap_write(pextp, 0x6004, 0x18190000); + regmap_write(pextp, 0x00F8, 0x01423342); + /* Force SGDT_OUT off and select PCS */ + regmap_write(pextp, 0x00F4, 0x80201F20); + /* Force GLB_CKDET_OUT */ + regmap_write(pextp, 0x0030, 0x00050C00); + /* Force AEQ on */ + regmap_write(pextp, 0x0070, 0x02002800); + ndelay(1020); + /* Setup DA default value */ + regmap_write(pextp, 0x30B0, 0x00000020); + regmap_write(pextp, 0x3028, 0x00008A01); + regmap_write(pextp, 0x302C, 0x0000A884); + regmap_write(pextp, 0x3024, 0x00083002); + regmap_write(pextp, 0x3010, 0x00022220); + regmap_write(pextp, 0x5064, 0x0F020A01); + regmap_write(pextp, 0x50B4, 0x06100600); + regmap_write(pextp, 0x3048, 0x47684100); + regmap_write(pextp, 0x3050, 0x00000000); + regmap_write(pextp, 0x3054, 0x00000000); + regmap_write(pextp, 0x306C, 0x00000F00); + if (mpcs->id == 0) + regmap_write(pextp, 0xA008, 0x0007B400); + + regmap_write(pextp, 0xA060, 0x00040000); + regmap_write(pextp, 0x90D0, 0x00000001); + /* Release reset */ + regmap_write(pextp, 0x0070, 0x0200E800); + udelay(150); + /* Switch to P0 */ + regmap_write(pextp, 0x0070, 0x0200C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0200C101); + udelay(15); + /* Switch to Gen3 */ + regmap_write(pextp, 0x0070, 0x0202C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0202C101); + udelay(100); + regmap_write(pextp, 0x30B0, 0x00000030); + regmap_write(pextp, 0x00F4, 0x80201F00); + regmap_write(pextp, 0x3040, 0x30000000); + udelay(400); +} + +void mtk_sgmii_setup_phya_gen1(struct mtk_eth *eth, int mac_id) +{ + u32 id = mtk_mac2xgmii_id(eth, mac_id); + struct regmap *pextp; + + if (id >= eth->soc->num_devs) + return; + + pextp = eth->regmap_pextp[id]; + if (!pextp) + return; + + /* Setup operation mode */ + regmap_write(pextp, 0x9024, 0x00D9071C); + regmap_write(pextp, 0x2020, 0xAA8585AA); + regmap_write(pextp, 0x2030, 0x0C020207); + regmap_write(pextp, 0x2034, 0x0E05050F); + regmap_write(pextp, 0x2040, 0x00200032); + regmap_write(pextp, 0x50F0, 0x00C014BA); + regmap_write(pextp, 0x50E0, 0x3777C12B); + regmap_write(pextp, 0x506C, 0x005F9CFF); + regmap_write(pextp, 0x5070, 0x9D9DFAFA); + regmap_write(pextp, 0x5074, 0x27273F3F); + regmap_write(pextp, 0x5078, 0xA7883C68); + regmap_write(pextp, 0x507C, 0x11661166); + regmap_write(pextp, 0x5080, 0x0E000EAF); + regmap_write(pextp, 0x5084, 0x08080E0D); + regmap_write(pextp, 0x5088, 0x02030B09); + regmap_write(pextp, 0x50E4, 0x0C0C0000); + regmap_write(pextp, 0x50E8, 0x04040000); + regmap_write(pextp, 0x50EC, 0x0F0F0606); + regmap_write(pextp, 0x50A8, 0x506E8C8C); + regmap_write(pextp, 0x6004, 0x18190000); + regmap_write(pextp, 0x00F8, 0x00FA32FA); + /* Force SGDT_OUT off and select PCS */ + regmap_write(pextp, 0x00F4, 0x80201F21); + /* Force GLB_CKDET_OUT */ + regmap_write(pextp, 0x0030, 0x00050C00); + /* Force AEQ on */ + regmap_write(pextp, 0x0070, 0x02002800); + ndelay(1020); + /* Setup DA default value */ + regmap_write(pextp, 0x30B0, 0x00000020); + regmap_write(pextp, 0x3028, 0x00008A01); + regmap_write(pextp, 0x302C, 0x0000A884); + regmap_write(pextp, 0x3024, 0x00083002); + regmap_write(pextp, 0x3010, 0x00011110); + regmap_write(pextp, 0x3048, 0x40704000); + regmap_write(pextp, 0x3064, 0x0000C000); + regmap_write(pextp, 0x3050, 0xA8000000); + regmap_write(pextp, 0x3054, 0x000000AA); + regmap_write(pextp, 0x306C, 0x20200F00); + regmap_write(pextp, 0xA060, 0x00050000); + regmap_write(pextp, 0x90D0, 0x00000007); + /* Release reset */ + regmap_write(pextp, 0x0070, 0x0200E800); + udelay(150); + /* Switch to P0 */ + regmap_write(pextp, 0x0070, 0x0200C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0200C101); + udelay(15); + /* Switch to Gen2 */ + regmap_write(pextp, 0x0070, 0x0201C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0201C101); + udelay(100); + regmap_write(pextp, 0x30B0, 0x00000030); + regmap_write(pextp, 0x00F4, 0x80201F01); + regmap_write(pextp, 0x3040, 0x30000000); + udelay(400); +} + +void mtk_sgmii_setup_phya_gen2(struct mtk_eth *eth, int mac_id) +{ + u32 id = mtk_mac2xgmii_id(eth, mac_id); + struct regmap *pextp; + + if (id >= eth->soc->num_devs) + return; + + pextp = eth->regmap_pextp[id]; + if (!pextp) + return; + + /* Setup operation mode */ + regmap_write(pextp, 0x9024, 0x00D9071C); + regmap_write(pextp, 0x2020, 0xAA8585AA); + regmap_write(pextp, 0x2030, 0x0C020707); + regmap_write(pextp, 0x2034, 0x0E050F0F); + regmap_write(pextp, 0x2040, 0x00140032); + regmap_write(pextp, 0x50F0, 0x00C014AA); + regmap_write(pextp, 0x50E0, 0x3777C12B); + regmap_write(pextp, 0x506C, 0x005F9CFF); + regmap_write(pextp, 0x5070, 0x9D9DFAFA); + regmap_write(pextp, 0x5074, 0x27273F3F); + regmap_write(pextp, 0x5078, 0xA7883C68); + regmap_write(pextp, 0x507C, 0x11661166); + regmap_write(pextp, 0x5080, 0x0E000AAF); + regmap_write(pextp, 0x5084, 0x08080D0D); + regmap_write(pextp, 0x5088, 0x02030909); + regmap_write(pextp, 0x50E4, 0x0C0C0000); + regmap_write(pextp, 0x50E8, 0x04040000); + regmap_write(pextp, 0x50EC, 0x0F0F0C06); + regmap_write(pextp, 0x50A8, 0x506E8C8C); + regmap_write(pextp, 0x6004, 0x18190000); + regmap_write(pextp, 0x00F8, 0x009C329C); + /* Force SGDT_OUT off and select PCS */ + regmap_write(pextp, 0x00F4, 0x80201F21); + /* Force GLB_CKDET_OUT */ + regmap_write(pextp, 0x0030, 0x00050C00); + /* Force AEQ on */ + regmap_write(pextp, 0x0070, 0x02002800); + ndelay(1020); + /* Setup DA default value */ + regmap_write(pextp, 0x30B0, 0x00000020); + regmap_write(pextp, 0x3028, 0x00008A01); + regmap_write(pextp, 0x302C, 0x0000A884); + regmap_write(pextp, 0x3024, 0x00083002); + regmap_write(pextp, 0x3010, 0x00011110); + regmap_write(pextp, 0x3048, 0x40704000); + regmap_write(pextp, 0x3050, 0xA8000000); + regmap_write(pextp, 0x3054, 0x000000AA); + regmap_write(pextp, 0x306C, 0x22000F00); + regmap_write(pextp, 0xA060, 0x00050000); + regmap_write(pextp, 0x90D0, 0x00000005); + /* Release reset */ + regmap_write(pextp, 0x0070, 0x0200E800); + udelay(150); + /* Switch to P0 */ + regmap_write(pextp, 0x0070, 0x0200C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0200C101); + udelay(15); + /* Switch to Gen2 */ + regmap_write(pextp, 0x0070, 0x0201C111); + ndelay(1020); + regmap_write(pextp, 0x0070, 0x0201C101); + udelay(100); + regmap_write(pextp, 0x30B0, 0x00000030); + regmap_write(pextp, 0x00F4, 0x80201F01); + regmap_write(pextp, 0x3040, 0x30000000); + udelay(400); +} + +static void mtk_usxgmii_reset(struct mtk_eth *eth, int id) +{ + u32 val = 0; + + if (id >= eth->soc->num_devs || !eth->toprgu) + return; + + switch (id) { + case 0: + /* Enable software reset */ + regmap_read(eth->toprgu, TOPRGU_SWSYSRST_EN, &val); + val |= SWSYSRST_XFI_PEXPT0_GRST | + SWSYSRST_XFI0_GRST; + regmap_write(eth->toprgu, TOPRGU_SWSYSRST_EN, val); + + /* Assert USXGMII reset */ + regmap_read(eth->toprgu, TOPRGU_SWSYSRST, &val); + val |= FIELD_PREP(SWSYSRST_UNLOCK_KEY, 0x88) | + SWSYSRST_XFI_PEXPT0_GRST | + SWSYSRST_XFI0_GRST; + regmap_write(eth->toprgu, TOPRGU_SWSYSRST, val); + + udelay(100); + + /* De-assert USXGMII reset */ + regmap_read(eth->toprgu, TOPRGU_SWSYSRST, &val); + val |= FIELD_PREP(SWSYSRST_UNLOCK_KEY, 0x88); + val &= ~(SWSYSRST_XFI_PEXPT0_GRST | + SWSYSRST_XFI0_GRST); + regmap_write(eth->toprgu, TOPRGU_SWSYSRST, val); + + /* Disable software reset */ + regmap_read(eth->toprgu, TOPRGU_SWSYSRST_EN, &val); + val &= ~(SWSYSRST_XFI_PEXPT0_GRST | + SWSYSRST_XFI0_GRST); + regmap_write(eth->toprgu, TOPRGU_SWSYSRST_EN, val); + break; + case 1: + /* Enable software reset */ + regmap_read(eth->toprgu, TOPRGU_SWSYSRST_EN, &val); + val |= SWSYSRST_XFI_PEXPT1_GRST | + SWSYSRST_XFI1_GRST; + regmap_write(eth->toprgu, TOPRGU_SWSYSRST_EN, val); + + /* Assert USXGMII reset */ + regmap_read(eth->toprgu, TOPRGU_SWSYSRST, &val); + val |= FIELD_PREP(SWSYSRST_UNLOCK_KEY, 0x88) | + SWSYSRST_XFI_PEXPT1_GRST | + SWSYSRST_XFI1_GRST; + regmap_write(eth->toprgu, TOPRGU_SWSYSRST, val); + + udelay(100); + + /* De-assert USXGMII reset */ + regmap_read(eth->toprgu, TOPRGU_SWSYSRST, &val); + val |= FIELD_PREP(SWSYSRST_UNLOCK_KEY, 0x88); + val &= ~(SWSYSRST_XFI_PEXPT1_GRST | + SWSYSRST_XFI1_GRST); + regmap_write(eth->toprgu, TOPRGU_SWSYSRST, val); + + /* Disable software reset */ + regmap_read(eth->toprgu, TOPRGU_SWSYSRST_EN, &val); + val &= ~(SWSYSRST_XFI_PEXPT1_GRST | + SWSYSRST_XFI1_GRST); + regmap_write(eth->toprgu, TOPRGU_SWSYSRST_EN, val); + break; + } + + mdelay(10); +} + +void mtk_sgmii_reset(struct mtk_eth *eth, int mac_id) +{ + u32 xgmii_id = mtk_mac2xgmii_id(eth, mac_id); + + mtk_usxgmii_reset(eth, xgmii_id); +} + + +static int mtk_usxgmii_pcs_config(struct phylink_pcs *pcs, unsigned int mode, + phy_interface_t interface, + const unsigned long *advertising, + bool permit_pause_to_mac) +{ + struct mtk_usxgmii_pcs *mpcs = pcs_to_mtk_usxgmii_pcs(pcs); + struct mtk_eth *eth = mpcs->eth; + unsigned int an_ctrl = 0, link_timer = 0, xfi_mode = 0, adapt_mode = 0; + bool mode_changed = false; + + if (interface == PHY_INTERFACE_MODE_USXGMII) { + an_ctrl = FIELD_PREP(USXGMII_AN_SYNC_CNT, 0x1FF) | + USXGMII_AN_ENABLE; + link_timer = FIELD_PREP(USXGMII_LINK_TIMER_IDLE_DETECT, 0x7B) | + FIELD_PREP(USXGMII_LINK_TIMER_COMP_ACK_DETECT, 0x7B) | + FIELD_PREP(USXGMII_LINK_TIMER_AN_RESTART, 0x7B); + xfi_mode = FIELD_PREP(USXGMII_XFI_RX_MODE, USXGMII_XFI_RX_MODE_10G) | + FIELD_PREP(USXGMII_XFI_TX_MODE, USXGMII_XFI_TX_MODE_10G); + } else if (interface == PHY_INTERFACE_MODE_10GKR) { + an_ctrl = FIELD_PREP(USXGMII_AN_SYNC_CNT, 0x1FF); + link_timer = FIELD_PREP(USXGMII_LINK_TIMER_IDLE_DETECT, 0x7B) | + FIELD_PREP(USXGMII_LINK_TIMER_COMP_ACK_DETECT, 0x7B) | + FIELD_PREP(USXGMII_LINK_TIMER_AN_RESTART, 0x7B); + xfi_mode = FIELD_PREP(USXGMII_XFI_RX_MODE, USXGMII_XFI_RX_MODE_10G) | + FIELD_PREP(USXGMII_XFI_TX_MODE, USXGMII_XFI_TX_MODE_10G); + adapt_mode = USXGMII_RATE_UPDATE_MODE; + } else if (interface == PHY_INTERFACE_MODE_5GBASER) { + an_ctrl = FIELD_PREP(USXGMII_AN_SYNC_CNT, 0xFF); + link_timer = FIELD_PREP(USXGMII_LINK_TIMER_IDLE_DETECT, 0x3D) | + FIELD_PREP(USXGMII_LINK_TIMER_COMP_ACK_DETECT, 0x3D) | + FIELD_PREP(USXGMII_LINK_TIMER_AN_RESTART, 0x3D); + xfi_mode = FIELD_PREP(USXGMII_XFI_RX_MODE, USXGMII_XFI_RX_MODE_5G) | + FIELD_PREP(USXGMII_XFI_TX_MODE, USXGMII_XFI_TX_MODE_5G); + adapt_mode = USXGMII_RATE_UPDATE_MODE; + } else + return -EINVAL; + + adapt_mode |= FIELD_PREP(USXGMII_RATE_ADAPT_MODE, USXGMII_RATE_ADAPT_MODE_X1); + + if (mpcs->interface != interface) { + mpcs->interface = interface; + mode_changed = true; + } + + mtk_xfi_pll_enable(eth); + mtk_usxgmii_reset(eth, mpcs->id); + + /* Setup USXGMII AN ctrl */ + regmap_update_bits(mpcs->regmap, RG_PCS_AN_CTRL0, + USXGMII_AN_SYNC_CNT | USXGMII_AN_ENABLE, + an_ctrl); + + regmap_update_bits(mpcs->regmap, RG_PCS_AN_CTRL2, + USXGMII_LINK_TIMER_IDLE_DETECT | + USXGMII_LINK_TIMER_COMP_ACK_DETECT | + USXGMII_LINK_TIMER_AN_RESTART, + link_timer); + + /* Gated MAC CK */ + regmap_update_bits(mpcs->regmap, RG_PHY_TOP_SPEED_CTRL1, + USXGMII_MAC_CK_GATED, USXGMII_MAC_CK_GATED); + + /* Enable interface force mode */ + regmap_update_bits(mpcs->regmap, RG_PHY_TOP_SPEED_CTRL1, + USXGMII_IF_FORCE_EN, USXGMII_IF_FORCE_EN); + + /* Setup USXGMII adapt mode */ + regmap_update_bits(mpcs->regmap, RG_PHY_TOP_SPEED_CTRL1, + USXGMII_RATE_UPDATE_MODE | USXGMII_RATE_ADAPT_MODE, + adapt_mode); + + /* Setup USXGMII speed */ + regmap_update_bits(mpcs->regmap, RG_PHY_TOP_SPEED_CTRL1, + USXGMII_XFI_RX_MODE | USXGMII_XFI_TX_MODE, + xfi_mode); + + udelay(1); + + /* Un-gated MAC CK */ + regmap_update_bits(mpcs->regmap, RG_PHY_TOP_SPEED_CTRL1, + USXGMII_MAC_CK_GATED, 0); + + udelay(1); + + /* Disable interface force mode for the AN mode */ + if (an_ctrl & USXGMII_AN_ENABLE) + regmap_update_bits(mpcs->regmap, RG_PHY_TOP_SPEED_CTRL1, + USXGMII_IF_FORCE_EN, 0); + + /* Setup USXGMIISYS with the determined property */ + if (interface == PHY_INTERFACE_MODE_USXGMII) + mtk_usxgmii_setup_phya_usxgmii(mpcs); + else if (interface == PHY_INTERFACE_MODE_10GKR) + mtk_usxgmii_setup_phya_10gbaser(mpcs); + else if (interface == PHY_INTERFACE_MODE_5GBASER) + mtk_usxgmii_setup_phya_5gbaser(mpcs); + + return mode_changed; +} + +static void mtk_usxgmii_pcs_get_state(struct phylink_pcs *pcs, + struct phylink_link_state *state) +{ + struct mtk_usxgmii_pcs *mpcs = pcs_to_mtk_usxgmii_pcs(pcs); + struct mtk_eth *eth = mpcs->eth; + struct mtk_mac *mac = eth->mac[mtk_xgmii2mac_id(eth, mpcs->id)]; + u32 val = 0; + + regmap_read(mpcs->regmap, RG_PCS_AN_CTRL0, &val); + if (FIELD_GET(USXGMII_AN_ENABLE, val)) { + /* Refresh LPA by inverting LPA_LATCH */ + regmap_read(mpcs->regmap, RG_PCS_AN_STS0, &val); + regmap_update_bits(mpcs->regmap, RG_PCS_AN_STS0, + USXGMII_LPA_LATCH, + !(val & USXGMII_LPA_LATCH)); + + regmap_read(mpcs->regmap, RG_PCS_AN_STS0, &val); + + state->interface = mpcs->interface; + state->link = FIELD_GET(USXGMII_LPA_LINK, val); + state->duplex = FIELD_GET(USXGMII_LPA_DUPLEX, val); + + switch (FIELD_GET(USXGMII_LPA_SPEED_MASK, val)) { + case USXGMII_LPA_SPEED_10: + state->speed = SPEED_10; + break; + case USXGMII_LPA_SPEED_100: + state->speed = SPEED_100; + break; + case USXGMII_LPA_SPEED_1000: + state->speed = SPEED_1000; + break; + case USXGMII_LPA_SPEED_2500: + state->speed = SPEED_2500; + break; + case USXGMII_LPA_SPEED_5000: + state->speed = SPEED_5000; + break; + case USXGMII_LPA_SPEED_10000: + state->speed = SPEED_10000; + break; + } + } else { + val = mtk_r32(mac->hw, MTK_XGMAC_STS(mac->id)); + + if (mac->id == MTK_GMAC2_ID) + val = val >> 16; + + switch (FIELD_GET(MTK_USXGMII_PCS_MODE, val)) { + case 0: + state->speed = SPEED_10000; + break; + case 1: + state->speed = SPEED_5000; + break; + case 2: + state->speed = SPEED_2500; + break; + case 3: + state->speed = SPEED_1000; + break; + } + + state->interface = mpcs->interface; + state->link = FIELD_GET(MTK_USXGMII_PCS_LINK, val); + state->duplex = DUPLEX_FULL; + } + + if (state->link == 0) + mtk_usxgmii_pcs_config(pcs, MLO_AN_INBAND, + state->interface, NULL, false); +} + +static void mtk_usxgmii_pcs_restart_an(struct phylink_pcs *pcs) +{ + struct mtk_usxgmii_pcs *mpcs = pcs_to_mtk_usxgmii_pcs(pcs); + unsigned int val = 0; + + if (!mpcs->regmap) + return; + + regmap_read(mpcs->regmap, RG_PCS_AN_CTRL0, &val); + val |= USXGMII_AN_RESTART; + regmap_write(mpcs->regmap, RG_PCS_AN_CTRL0, val); +} + +static void mtk_usxgmii_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode, + phy_interface_t interface, + int speed, int duplex) +{ + /* Reconfiguring USXGMII to ensure the quality of the RX signal + * after the line side link up. + */ + mtk_usxgmii_pcs_config(pcs, mode, + interface, NULL, false); +} + +static const struct phylink_pcs_ops mtk_usxgmii_pcs_ops = { + .pcs_config = mtk_usxgmii_pcs_config, + .pcs_get_state = mtk_usxgmii_pcs_get_state, + .pcs_an_restart = mtk_usxgmii_pcs_restart_an, + .pcs_link_up = mtk_usxgmii_pcs_link_up, +}; + +int mtk_usxgmii_init(struct mtk_eth *eth) +{ + struct device_node *r = eth->dev->of_node; + struct device *dev = eth->dev; + struct device_node *np; + int i, ret; + + eth->usxgmii_pcs = devm_kcalloc(dev, eth->soc->num_devs, sizeof(eth->usxgmii_pcs), GFP_KERNEL); + if (!eth->usxgmii_pcs) + return -ENOMEM; + + for (i = 0; i < eth->soc->num_devs; i++) { + np = of_parse_phandle(r, "mediatek,usxgmiisys", i); + if (!np) + break; + + eth->usxgmii_pcs[i] = devm_kzalloc(dev, sizeof(*eth->usxgmii_pcs), GFP_KERNEL); + if (!eth->usxgmii_pcs[i]) + return -ENOMEM; + + eth->usxgmii_pcs[i]->id = i; + eth->usxgmii_pcs[i]->eth = eth; + eth->usxgmii_pcs[i]->regmap = syscon_node_to_regmap(np); + if (IS_ERR(eth->usxgmii_pcs[i]->regmap)) + return PTR_ERR(eth->usxgmii_pcs[i]->regmap); + + eth->usxgmii_pcs[i]->pcs.ops = &mtk_usxgmii_pcs_ops; + eth->usxgmii_pcs[i]->pcs.poll = true; + eth->usxgmii_pcs[i]->interface = PHY_INTERFACE_MODE_NA; + + of_node_put(np); + } + + ret = mtk_xfi_pextp_init(eth); + if (ret) + return ret; + + ret = mtk_xfi_pll_init(eth); + if (ret) + return ret; + + return mtk_toprgu_init(eth); +} + +struct phylink_pcs *mtk_usxgmii_select_pcs(struct mtk_eth *eth, int mac_id) +{ + u32 xgmii_id = mtk_mac2xgmii_id(eth, mac_id); + + if (!eth->usxgmii_pcs[xgmii_id]->regmap) + return NULL; + + return ð->usxgmii_pcs[xgmii_id]->pcs; +}