diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 233 |
1 files changed, 226 insertions, 7 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c index 48acba5eb178..c8bb9265bbb4 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c @@ -5,15 +5,30 @@ #include <linux/clk-provider.h> #include <linux/pci.h> #include <linux/dmi.h> +#include <linux/platform_data/x86/intel_pmc_ipc.h> #include "dwmac-intel.h" #include "dwmac4.h" #include "stmmac.h" #include "stmmac_ptp.h" +struct pmc_serdes_regs { + u8 index; + u32 val; +}; + +struct pmc_serdes_reg_info { + const struct pmc_serdes_regs *regs; + u8 num_regs; +}; + struct intel_priv_data { int mdio_adhoc_addr; /* mdio address for serdes & etc */ unsigned long crossts_adj; bool is_pse; + const int *tsn_lane_regs; + int max_tsn_lane_regs; + struct pmc_serdes_reg_info pid_1g; + struct pmc_serdes_reg_info pid_2p5g; }; /* This struct is used to associate PCI Function of MAC controller on a board, @@ -35,6 +50,45 @@ struct stmmac_pci_info { int (*setup)(struct pci_dev *pdev, struct plat_stmmacenet_data *plat); }; +static const struct pmc_serdes_regs pid_modphy3_1g_regs[] = { + { PID_MODPHY3_B_MODPHY_PCR_LCPLL_DWORD0, B_MODPHY_PCR_LCPLL_DWORD0_1G }, + { PID_MODPHY3_N_MODPHY_PCR_LCPLL_DWORD2, N_MODPHY_PCR_LCPLL_DWORD2_1G }, + { PID_MODPHY3_N_MODPHY_PCR_LCPLL_DWORD7, N_MODPHY_PCR_LCPLL_DWORD7_1G }, + { PID_MODPHY3_N_MODPHY_PCR_LPPLL_DWORD10, N_MODPHY_PCR_LPPLL_DWORD10_1G }, + { PID_MODPHY3_N_MODPHY_PCR_CMN_ANA_DWORD30, N_MODPHY_PCR_CMN_ANA_DWORD30_1G }, + {} +}; + +static const struct pmc_serdes_regs pid_modphy3_2p5g_regs[] = { + { PID_MODPHY3_B_MODPHY_PCR_LCPLL_DWORD0, B_MODPHY_PCR_LCPLL_DWORD0_2P5G }, + { PID_MODPHY3_N_MODPHY_PCR_LCPLL_DWORD2, N_MODPHY_PCR_LCPLL_DWORD2_2P5G }, + { PID_MODPHY3_N_MODPHY_PCR_LCPLL_DWORD7, N_MODPHY_PCR_LCPLL_DWORD7_2P5G }, + { PID_MODPHY3_N_MODPHY_PCR_LPPLL_DWORD10, N_MODPHY_PCR_LPPLL_DWORD10_2P5G }, + { PID_MODPHY3_N_MODPHY_PCR_CMN_ANA_DWORD30, N_MODPHY_PCR_CMN_ANA_DWORD30_2P5G }, + {} +}; + +static const struct pmc_serdes_regs pid_modphy1_1g_regs[] = { + { PID_MODPHY1_B_MODPHY_PCR_LCPLL_DWORD0, B_MODPHY_PCR_LCPLL_DWORD0_1G }, + { PID_MODPHY1_N_MODPHY_PCR_LCPLL_DWORD2, N_MODPHY_PCR_LCPLL_DWORD2_1G }, + { PID_MODPHY1_N_MODPHY_PCR_LCPLL_DWORD7, N_MODPHY_PCR_LCPLL_DWORD7_1G }, + { PID_MODPHY1_N_MODPHY_PCR_LPPLL_DWORD10, N_MODPHY_PCR_LPPLL_DWORD10_1G }, + { PID_MODPHY1_N_MODPHY_PCR_CMN_ANA_DWORD30, N_MODPHY_PCR_CMN_ANA_DWORD30_1G }, + {} +}; + +static const struct pmc_serdes_regs pid_modphy1_2p5g_regs[] = { + { PID_MODPHY1_B_MODPHY_PCR_LCPLL_DWORD0, B_MODPHY_PCR_LCPLL_DWORD0_2P5G }, + { PID_MODPHY1_N_MODPHY_PCR_LCPLL_DWORD2, N_MODPHY_PCR_LCPLL_DWORD2_2P5G }, + { PID_MODPHY1_N_MODPHY_PCR_LCPLL_DWORD7, N_MODPHY_PCR_LCPLL_DWORD7_2P5G }, + { PID_MODPHY1_N_MODPHY_PCR_LPPLL_DWORD10, N_MODPHY_PCR_LPPLL_DWORD10_2P5G }, + { PID_MODPHY1_N_MODPHY_PCR_CMN_ANA_DWORD30, N_MODPHY_PCR_CMN_ANA_DWORD30_2P5G }, + {} +}; + +static const int ehl_tsn_lane_regs[] = {7, 8, 9, 10, 11}; +static const int adln_tsn_lane_regs[] = {6}; + static int stmmac_pci_find_phy_addr(struct pci_dev *pdev, const struct dmi_system_id *dmi_list) { @@ -93,7 +147,7 @@ static int intel_serdes_powerup(struct net_device *ndev, void *priv_data) data &= ~SERDES_RATE_MASK; data &= ~SERDES_PCLK_MASK; - if (priv->plat->max_speed == 2500) + if (priv->plat->phy_interface == PHY_INTERFACE_MODE_2500BASEX) data |= SERDES_RATE_PCIE_GEN2 << SERDES_RATE_PCIE_SHIFT | SERDES_PCLK_37p5MHZ << SERDES_PCLK_SHIFT; else @@ -415,6 +469,95 @@ static void intel_mgbe_pse_crossts_adj(struct intel_priv_data *intel_priv, } } +static int intel_tsn_lane_is_available(struct net_device *ndev, + struct intel_priv_data *intel_priv) +{ + struct stmmac_priv *priv = netdev_priv(ndev); + struct pmc_ipc_cmd tmp = {}; + struct pmc_ipc_rbuf rbuf = {}; + int ret = 0, i, j; + const int max_fia_regs = 5; + + tmp.cmd = IPC_SOC_REGISTER_ACCESS; + tmp.sub_cmd = IPC_SOC_SUB_CMD_READ; + + for (i = 0; i < max_fia_regs; i++) { + tmp.wbuf[0] = R_PCH_FIA_15_PCR_LOS1_REG_BASE + i; + + ret = intel_pmc_ipc(&tmp, &rbuf); + if (ret < 0) { + netdev_info(priv->dev, "Failed to read from PMC.\n"); + return ret; + } + + for (j = 0; j <= intel_priv->max_tsn_lane_regs; j++) + if ((rbuf.buf[0] >> + (4 * (intel_priv->tsn_lane_regs[j] % 8)) & + B_PCH_FIA_PCR_L0O) == 0xB) + return 0; + } + + return -EINVAL; +} + +static int intel_set_reg_access(const struct pmc_serdes_regs *regs, int max_regs) +{ + int ret = 0, i; + + for (i = 0; i < max_regs; i++) { + struct pmc_ipc_cmd tmp = {}; + struct pmc_ipc_rbuf rbuf = {}; + + tmp.cmd = IPC_SOC_REGISTER_ACCESS; + tmp.sub_cmd = IPC_SOC_SUB_CMD_WRITE; + tmp.wbuf[0] = (u32)regs[i].index; + tmp.wbuf[1] = regs[i].val; + + ret = intel_pmc_ipc(&tmp, &rbuf); + if (ret < 0) + return ret; + } + + return ret; +} + +static int intel_mac_finish(struct net_device *ndev, + void *intel_data, + unsigned int mode, + phy_interface_t interface) +{ + struct intel_priv_data *intel_priv = intel_data; + struct stmmac_priv *priv = netdev_priv(ndev); + const struct pmc_serdes_regs *regs; + int max_regs = 0; + int ret = 0; + + ret = intel_tsn_lane_is_available(ndev, intel_priv); + if (ret < 0) { + netdev_info(priv->dev, "No TSN lane available to set the registers.\n"); + return ret; + } + + if (interface == PHY_INTERFACE_MODE_2500BASEX) { + regs = intel_priv->pid_2p5g.regs; + max_regs = intel_priv->pid_2p5g.num_regs; + } else { + regs = intel_priv->pid_1g.regs; + max_regs = intel_priv->pid_1g.num_regs; + } + + ret = intel_set_reg_access(regs, max_regs); + if (ret < 0) + return ret; + + priv->plat->phy_interface = interface; + + intel_serdes_powerdown(ndev, intel_priv); + intel_serdes_powerup(ndev, intel_priv); + + return ret; +} + static void common_default_data(struct plat_stmmacenet_data *plat) { plat->clk_csr = 2; /* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */ @@ -624,6 +767,8 @@ static int intel_mgbe_common_data(struct pci_dev *pdev, static int ehl_common_data(struct pci_dev *pdev, struct plat_stmmacenet_data *plat) { + struct intel_priv_data *intel_priv = plat->bsp_priv; + plat->rx_queues_to_use = 8; plat->tx_queues_to_use = 8; plat->flags |= STMMAC_FLAG_USE_PHY_WOL; @@ -639,20 +784,29 @@ static int ehl_common_data(struct pci_dev *pdev, plat->safety_feat_cfg->prtyen = 0; plat->safety_feat_cfg->tmouten = 0; + intel_priv->tsn_lane_regs = ehl_tsn_lane_regs; + intel_priv->max_tsn_lane_regs = ARRAY_SIZE(ehl_tsn_lane_regs); + return intel_mgbe_common_data(pdev, plat); } static int ehl_sgmii_data(struct pci_dev *pdev, struct plat_stmmacenet_data *plat) { + struct intel_priv_data *intel_priv = plat->bsp_priv; + plat->bus_id = 1; plat->phy_interface = PHY_INTERFACE_MODE_SGMII; - plat->speed_mode_2500 = intel_speed_mode_2500; plat->serdes_powerup = intel_serdes_powerup; plat->serdes_powerdown = intel_serdes_powerdown; - + plat->mac_finish = intel_mac_finish; plat->clk_ptp_rate = 204800000; + intel_priv->pid_1g.regs = pid_modphy3_1g_regs; + intel_priv->pid_1g.num_regs = ARRAY_SIZE(pid_modphy3_1g_regs); + intel_priv->pid_2p5g.regs = pid_modphy3_2p5g_regs; + intel_priv->pid_2p5g.num_regs = ARRAY_SIZE(pid_modphy3_2p5g_regs); + return ehl_common_data(pdev, plat); } @@ -705,10 +859,18 @@ static struct stmmac_pci_info ehl_pse0_rgmii1g_info = { static int ehl_pse0_sgmii1g_data(struct pci_dev *pdev, struct plat_stmmacenet_data *plat) { + struct intel_priv_data *intel_priv = plat->bsp_priv; + plat->phy_interface = PHY_INTERFACE_MODE_SGMII; - plat->speed_mode_2500 = intel_speed_mode_2500; plat->serdes_powerup = intel_serdes_powerup; plat->serdes_powerdown = intel_serdes_powerdown; + plat->mac_finish = intel_mac_finish; + + intel_priv->pid_1g.regs = pid_modphy1_1g_regs; + intel_priv->pid_1g.num_regs = ARRAY_SIZE(pid_modphy1_1g_regs); + intel_priv->pid_2p5g.regs = pid_modphy1_2p5g_regs; + intel_priv->pid_2p5g.num_regs = ARRAY_SIZE(pid_modphy1_2p5g_regs); + return ehl_pse0_common_data(pdev, plat); } @@ -746,10 +908,18 @@ static struct stmmac_pci_info ehl_pse1_rgmii1g_info = { static int ehl_pse1_sgmii1g_data(struct pci_dev *pdev, struct plat_stmmacenet_data *plat) { + struct intel_priv_data *intel_priv = plat->bsp_priv; + plat->phy_interface = PHY_INTERFACE_MODE_SGMII; - plat->speed_mode_2500 = intel_speed_mode_2500; plat->serdes_powerup = intel_serdes_powerup; plat->serdes_powerdown = intel_serdes_powerdown; + plat->mac_finish = intel_mac_finish; + + intel_priv->pid_1g.regs = pid_modphy1_1g_regs; + intel_priv->pid_1g.num_regs = ARRAY_SIZE(pid_modphy1_1g_regs); + intel_priv->pid_2p5g.regs = pid_modphy1_2p5g_regs; + intel_priv->pid_2p5g.num_regs = ARRAY_SIZE(pid_modphy1_2p5g_regs); + return ehl_pse1_common_data(pdev, plat); } @@ -835,6 +1005,55 @@ static int adls_sgmii_phy1_data(struct pci_dev *pdev, static struct stmmac_pci_info adls_sgmii1g_phy1_info = { .setup = adls_sgmii_phy1_data, }; + +static int adln_common_data(struct pci_dev *pdev, + struct plat_stmmacenet_data *plat) +{ + struct intel_priv_data *intel_priv = plat->bsp_priv; + + plat->rx_queues_to_use = 6; + plat->tx_queues_to_use = 4; + plat->clk_ptp_rate = 204800000; + + plat->safety_feat_cfg->tsoee = 1; + plat->safety_feat_cfg->mrxpee = 0; + plat->safety_feat_cfg->mestee = 1; + plat->safety_feat_cfg->mrxee = 1; + plat->safety_feat_cfg->mtxee = 1; + plat->safety_feat_cfg->epsi = 0; + plat->safety_feat_cfg->edpp = 0; + plat->safety_feat_cfg->prtyen = 0; + plat->safety_feat_cfg->tmouten = 0; + + intel_priv->tsn_lane_regs = adln_tsn_lane_regs; + intel_priv->max_tsn_lane_regs = ARRAY_SIZE(adln_tsn_lane_regs); + + return intel_mgbe_common_data(pdev, plat); +} + +static int adln_sgmii_phy0_data(struct pci_dev *pdev, + struct plat_stmmacenet_data *plat) +{ + struct intel_priv_data *intel_priv = plat->bsp_priv; + + plat->bus_id = 1; + plat->phy_interface = PHY_INTERFACE_MODE_SGMII; + plat->serdes_powerup = intel_serdes_powerup; + plat->serdes_powerdown = intel_serdes_powerdown; + plat->mac_finish = intel_mac_finish; + + intel_priv->pid_1g.regs = pid_modphy1_1g_regs; + intel_priv->pid_1g.num_regs = ARRAY_SIZE(pid_modphy1_1g_regs); + intel_priv->pid_2p5g.regs = pid_modphy1_2p5g_regs; + intel_priv->pid_2p5g.num_regs = ARRAY_SIZE(pid_modphy1_2p5g_regs); + + return adln_common_data(pdev, plat); +} + +static struct stmmac_pci_info adln_sgmii1g_phy0_info = { + .setup = adln_sgmii_phy0_data, +}; + static const struct stmmac_pci_func_data galileo_stmmac_func_data[] = { { .func = 6, @@ -1217,8 +1436,8 @@ static const struct pci_device_id intel_eth_pci_id_table[] = { { PCI_DEVICE_DATA(INTEL, TGLH_SGMII1G_1, &tgl_sgmii1g_phy1_info) }, { PCI_DEVICE_DATA(INTEL, ADLS_SGMII1G_0, &adls_sgmii1g_phy0_info) }, { PCI_DEVICE_DATA(INTEL, ADLS_SGMII1G_1, &adls_sgmii1g_phy1_info) }, - { PCI_DEVICE_DATA(INTEL, ADLN_SGMII1G, &tgl_sgmii1g_phy0_info) }, - { PCI_DEVICE_DATA(INTEL, RPLP_SGMII1G, &tgl_sgmii1g_phy0_info) }, + { PCI_DEVICE_DATA(INTEL, ADLN_SGMII1G, &adln_sgmii1g_phy0_info) }, + { PCI_DEVICE_DATA(INTEL, RPLP_SGMII1G, &adln_sgmii1g_phy0_info) }, {} }; MODULE_DEVICE_TABLE(pci, intel_eth_pci_id_table); |