From 1cc455150b7a67f3bbfe1dce03a97b4ae88778d5 Mon Sep 17 00:00:00 2001 From: Swapnil Jakhade Date: Wed, 28 Jul 2021 16:54:51 +0200 Subject: phy: cadence-torrent: Add PHY configuration for DP with 100MHz ref clock Add PHY configuration registers for single link DP with 100MHz reference clock and NO_SSC. Signed-off-by: Swapnil Jakhade Link: https://lore.kernel.org/r/20210728145454.15945-7-sjakhade@cadence.com Signed-off-by: Vinod Koul --- drivers/phy/cadence/phy-cadence-torrent.c | 162 ++++++++++++++++++++++++++++++ 1 file changed, 162 insertions(+) (limited to 'drivers/phy') diff --git a/drivers/phy/cadence/phy-cadence-torrent.c b/drivers/phy/cadence/phy-cadence-torrent.c index a6331927d775..69466481af26 100644 --- a/drivers/phy/cadence/phy-cadence-torrent.c +++ b/drivers/phy/cadence/phy-cadence-torrent.c @@ -103,6 +103,7 @@ #define CMN_PLL0_FRACDIVH_M0 0x0092U #define CMN_PLL0_HIGH_THR_M0 0x0093U #define CMN_PLL0_DSM_DIAG_M0 0x0094U +#define CMN_PLL0_DSM_FBH_OVRD_M0 0x0095U #define CMN_PLL0_SS_CTRL1_M0 0x0098U #define CMN_PLL0_SS_CTRL2_M0 0x0099U #define CMN_PLL0_SS_CTRL3_M0 0x009AU @@ -816,6 +817,89 @@ void cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(struct cdns_torrent_phy *cdns_phy, cdns_torrent_phy_write(regmap, CMN_PLL1_LOCK_PLLCNT_START, 0x00C7); } +static +void cdns_torrent_dp_pma_cmn_vco_cfg_100mhz(struct cdns_torrent_phy *cdns_phy, + u32 rate, bool ssc) +{ + struct regmap *regmap = cdns_phy->regmap_common_cdb; + + /* Assumes 100 MHz refclock */ + switch (rate) { + /* Setting VCO for 10.8GHz */ + case 2700: + case 5400: + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CP_PADJ_M0, 0x0028); + cdns_torrent_phy_write(regmap, CMN_PLL0_DSM_FBH_OVRD_M0, 0x0022); + cdns_torrent_phy_write(regmap, CMN_PLL1_DSM_FBH_OVRD_M0, 0x0022); + cdns_torrent_phy_write(regmap, CMN_PLL1_DSM_FBL_OVRD_M0, 0x000C); + break; + /* Setting VCO for 9.72GHz */ + case 1620: + case 2430: + case 3240: + cdns_torrent_phy_write(regmap, CMN_PLL0_DSM_DIAG_M0, 0x0004); + cdns_torrent_phy_write(regmap, CMN_PLL1_DSM_DIAG_M0, 0x0004); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_CP_PADJ_M0, 0x0509); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CP_PADJ_M0, 0x0509); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_CP_IADJ_M0, 0x0F00); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CP_IADJ_M0, 0x0F00); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_FILT_PADJ_M0, 0x0F08); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_FILT_PADJ_M0, 0x0F08); + cdns_torrent_phy_write(regmap, CMN_PLL0_INTDIV_M0, 0x0061); + cdns_torrent_phy_write(regmap, CMN_PLL1_INTDIV_M0, 0x0061); + cdns_torrent_phy_write(regmap, CMN_PLL0_FRACDIVL_M0, 0x3333); + cdns_torrent_phy_write(regmap, CMN_PLL1_FRACDIVL_M0, 0x3333); + cdns_torrent_phy_write(regmap, CMN_PLL0_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(regmap, CMN_PLL1_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(regmap, CMN_PLL0_HIGH_THR_M0, 0x0042); + cdns_torrent_phy_write(regmap, CMN_PLL1_HIGH_THR_M0, 0x0042); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_CTRL_M0, 0x0002); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CTRL_M0, 0x0002); + break; + /* Setting VCO for 8.64GHz */ + case 2160: + case 4320: + cdns_torrent_phy_write(regmap, CMN_PLL0_DSM_DIAG_M0, 0x0004); + cdns_torrent_phy_write(regmap, CMN_PLL1_DSM_DIAG_M0, 0x0004); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_CP_PADJ_M0, 0x0509); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CP_PADJ_M0, 0x0509); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_CP_IADJ_M0, 0x0F00); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CP_IADJ_M0, 0x0F00); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_FILT_PADJ_M0, 0x0F08); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_FILT_PADJ_M0, 0x0F08); + cdns_torrent_phy_write(regmap, CMN_PLL0_INTDIV_M0, 0x0056); + cdns_torrent_phy_write(regmap, CMN_PLL1_INTDIV_M0, 0x0056); + cdns_torrent_phy_write(regmap, CMN_PLL0_FRACDIVL_M0, 0x6666); + cdns_torrent_phy_write(regmap, CMN_PLL1_FRACDIVL_M0, 0x6666); + cdns_torrent_phy_write(regmap, CMN_PLL0_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(regmap, CMN_PLL1_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(regmap, CMN_PLL0_HIGH_THR_M0, 0x003A); + cdns_torrent_phy_write(regmap, CMN_PLL1_HIGH_THR_M0, 0x003A); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_CTRL_M0, 0x0002); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CTRL_M0, 0x0002); + break; + /* Setting VCO for 8.1GHz */ + case 8100: + cdns_torrent_phy_write(regmap, CMN_PLL0_DSM_DIAG_M0, 0x0004); + cdns_torrent_phy_write(regmap, CMN_PLL1_DSM_DIAG_M0, 0x0004); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_CP_PADJ_M0, 0x0509); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CP_PADJ_M0, 0x0509); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_CP_IADJ_M0, 0x0F00); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CP_IADJ_M0, 0x0F00); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_FILT_PADJ_M0, 0x0F08); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_FILT_PADJ_M0, 0x0F08); + cdns_torrent_phy_write(regmap, CMN_PLL0_INTDIV_M0, 0x0051); + cdns_torrent_phy_write(regmap, CMN_PLL1_INTDIV_M0, 0x0051); + cdns_torrent_phy_write(regmap, CMN_PLL0_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(regmap, CMN_PLL1_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(regmap, CMN_PLL0_HIGH_THR_M0, 0x0036); + cdns_torrent_phy_write(regmap, CMN_PLL1_HIGH_THR_M0, 0x0036); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL0_CTRL_M0, 0x0002); + cdns_torrent_phy_write(regmap, CMN_PDIAG_PLL1_CTRL_M0, 0x0002); + break; + } +} + /* * Enable or disable PLL for selected lanes. */ @@ -1056,6 +1140,10 @@ static int cdns_torrent_dp_configure_rate(struct cdns_torrent_phy *cdns_phy, else if (cdns_phy->ref_clk_rate == CLK_25_MHZ) /* PMA common configuration 25MHz */ cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(cdns_phy, dp->link_rate, dp->ssc); + else if (cdns_phy->ref_clk_rate == CLK_100_MHZ) + /* PMA common configuration 100MHz */ + cdns_torrent_dp_pma_cmn_vco_cfg_100mhz(cdns_phy, dp->link_rate, dp->ssc); + cdns_torrent_dp_pma_cmn_rate(cdns_phy, dp->link_rate, dp->lanes); /* Enable the cmn_pll0_en. */ @@ -1395,6 +1483,7 @@ static int cdns_torrent_dp_init(struct phy *phy) switch (cdns_phy->ref_clk_rate) { case CLK_19_2_MHZ: case CLK_25_MHZ: + case CLK_100_MHZ: /* Valid Ref Clock Rate */ break; default: @@ -1431,6 +1520,11 @@ static int cdns_torrent_dp_init(struct phy *phy) cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(cdns_phy, cdns_phy->max_bit_rate, false); + else if (cdns_phy->ref_clk_rate == CLK_100_MHZ) + cdns_torrent_dp_pma_cmn_vco_cfg_100mhz(cdns_phy, + cdns_phy->max_bit_rate, + false); + cdns_torrent_dp_pma_cmn_rate(cdns_phy, cdns_phy->max_bit_rate, inst->num_lanes); @@ -2511,6 +2605,44 @@ static struct cdns_torrent_vals sl_dp_25_no_ssc_rx_ln_vals = { .num_regs = ARRAY_SIZE(sl_dp_25_no_ssc_rx_ln_regs), }; +/* Single DP, 100 MHz Ref clk, no SSC */ +static struct cdns_reg_pairs sl_dp_100_no_ssc_cmn_regs[] = { + {0x0003, CMN_PLL0_VCOCAL_TCTRL}, + {0x0003, CMN_PLL1_VCOCAL_TCTRL} +}; + +static struct cdns_reg_pairs sl_dp_100_no_ssc_tx_ln_regs[] = { + {0x00FB, TX_PSC_A0}, + {0x04AA, TX_PSC_A2}, + {0x04AA, TX_PSC_A3}, + {0x000F, XCVR_DIAG_BIDI_CTRL} +}; + +static struct cdns_reg_pairs sl_dp_100_no_ssc_rx_ln_regs[] = { + {0x0000, RX_PSC_A0}, + {0x0000, RX_PSC_A2}, + {0x0000, RX_PSC_A3}, + {0x0000, RX_PSC_CAL}, + {0x0000, RX_REE_GCSM1_CTRL}, + {0x0000, RX_REE_GCSM2_CTRL}, + {0x0000, RX_REE_PERGCSM_CTRL} +}; + +static struct cdns_torrent_vals sl_dp_100_no_ssc_cmn_vals = { + .reg_pairs = sl_dp_100_no_ssc_cmn_regs, + .num_regs = ARRAY_SIZE(sl_dp_100_no_ssc_cmn_regs), +}; + +static struct cdns_torrent_vals sl_dp_100_no_ssc_tx_ln_vals = { + .reg_pairs = sl_dp_100_no_ssc_tx_ln_regs, + .num_regs = ARRAY_SIZE(sl_dp_100_no_ssc_tx_ln_regs), +}; + +static struct cdns_torrent_vals sl_dp_100_no_ssc_rx_ln_vals = { + .reg_pairs = sl_dp_100_no_ssc_rx_ln_regs, + .num_regs = ARRAY_SIZE(sl_dp_100_no_ssc_rx_ln_regs), +}; + /* USB and SGMII/QSGMII link configuration */ static struct cdns_reg_pairs usb_sgmii_link_cmn_regs[] = { {0x0002, PHY_PLL_CFG}, @@ -3450,6 +3582,11 @@ static const struct cdns_torrent_data cdns_map_torrent = { }, }, [CLK_100_MHZ] = { + [TYPE_DP] = { + [TYPE_NONE] = { + [NO_SSC] = &sl_dp_100_no_ssc_cmn_vals, + }, + }, [TYPE_PCIE] = { [TYPE_NONE] = { [NO_SSC] = NULL, @@ -3542,6 +3679,11 @@ static const struct cdns_torrent_data cdns_map_torrent = { }, }, [CLK_100_MHZ] = { + [TYPE_DP] = { + [TYPE_NONE] = { + [NO_SSC] = &sl_dp_100_no_ssc_tx_ln_vals, + }, + }, [TYPE_PCIE] = { [TYPE_NONE] = { [NO_SSC] = NULL, @@ -3634,6 +3776,11 @@ static const struct cdns_torrent_data cdns_map_torrent = { }, }, [CLK_100_MHZ] = { + [TYPE_DP] = { + [TYPE_NONE] = { + [NO_SSC] = &sl_dp_100_no_ssc_rx_ln_vals, + }, + }, [TYPE_PCIE] = { [TYPE_NONE] = { [NO_SSC] = &pcie_100_no_ssc_rx_ln_vals, @@ -3917,6 +4064,11 @@ static const struct cdns_torrent_data ti_j721e_map_torrent = { }, }, [CLK_100_MHZ] = { + [TYPE_DP] = { + [TYPE_NONE] = { + [NO_SSC] = &sl_dp_100_no_ssc_cmn_vals, + }, + }, [TYPE_PCIE] = { [TYPE_NONE] = { [NO_SSC] = NULL, @@ -4009,6 +4161,11 @@ static const struct cdns_torrent_data ti_j721e_map_torrent = { }, }, [CLK_100_MHZ] = { + [TYPE_DP] = { + [TYPE_NONE] = { + [NO_SSC] = &sl_dp_100_no_ssc_tx_ln_vals, + }, + }, [TYPE_PCIE] = { [TYPE_NONE] = { [NO_SSC] = NULL, @@ -4101,6 +4258,11 @@ static const struct cdns_torrent_data ti_j721e_map_torrent = { }, }, [CLK_100_MHZ] = { + [TYPE_DP] = { + [TYPE_NONE] = { + [NO_SSC] = &sl_dp_100_no_ssc_rx_ln_vals, + }, + }, [TYPE_PCIE] = { [TYPE_NONE] = { [NO_SSC] = &pcie_100_no_ssc_rx_ln_vals, -- cgit v1.2.3