From ccb1b89de37efeee74b46b8bd0bf632be92a7c08 Mon Sep 17 00:00:00 2001 From: Swapnil Jakhade Date: Thu, 6 Feb 2020 07:10:53 +0100 Subject: phy: cadence-torrent: Add wrapper for PHY register access Add a wrapper function to write Torrent PHY registers to improve code readability. Signed-off-by: Swapnil Jakhade Signed-off-by: Yuti Amonkar Signed-off-by: Kishon Vijay Abraham I --- drivers/phy/cadence/phy-cadence-torrent.c | 142 ++++++++++++++++-------------- 1 file changed, 77 insertions(+), 65 deletions(-) (limited to 'drivers/phy/cadence') diff --git a/drivers/phy/cadence/phy-cadence-torrent.c b/drivers/phy/cadence/phy-cadence-torrent.c index eb61005077ab..59c85d8b9e16 100644 --- a/drivers/phy/cadence/phy-cadence-torrent.c +++ b/drivers/phy/cadence/phy-cadence-torrent.c @@ -132,6 +132,14 @@ static const struct phy_ops cdns_torrent_phy_ops = { .owner = THIS_MODULE, }; +/* PHY mmr access functions */ + +static void cdns_torrent_phy_write(struct cdns_torrent_phy *cdns_phy, + u32 offset, u32 val) +{ + writel(val, cdns_phy->sd_base + offset); +} + static int cdns_torrent_dp_init(struct phy *phy) { unsigned char lane_bits; @@ -234,34 +242,35 @@ static void cdns_torrent_dp_pma_cmn_cfg_25mhz(struct cdns_torrent_phy *cdns_phy) { /* refclock registers - assumes 25 MHz refclock */ - writel(0x0019, cdns_phy->sd_base + CMN_SSM_BIAS_TMR); - writel(0x0032, cdns_phy->sd_base + CMN_PLLSM0_PLLPRE_TMR); - writel(0x00D1, cdns_phy->sd_base + CMN_PLLSM0_PLLLOCK_TMR); - writel(0x0032, cdns_phy->sd_base + CMN_PLLSM1_PLLPRE_TMR); - writel(0x00D1, cdns_phy->sd_base + CMN_PLLSM1_PLLLOCK_TMR); - writel(0x007D, cdns_phy->sd_base + CMN_BGCAL_INIT_TMR); - writel(0x007D, cdns_phy->sd_base + CMN_BGCAL_ITER_TMR); - writel(0x0019, cdns_phy->sd_base + CMN_IBCAL_INIT_TMR); - writel(0x001E, cdns_phy->sd_base + CMN_TXPUCAL_INIT_TMR); - writel(0x0006, cdns_phy->sd_base + CMN_TXPUCAL_ITER_TMR); - writel(0x001E, cdns_phy->sd_base + CMN_TXPDCAL_INIT_TMR); - writel(0x0006, cdns_phy->sd_base + CMN_TXPDCAL_ITER_TMR); - writel(0x02EE, cdns_phy->sd_base + CMN_RXCAL_INIT_TMR); - writel(0x0006, cdns_phy->sd_base + CMN_RXCAL_ITER_TMR); - writel(0x0002, cdns_phy->sd_base + CMN_SD_CAL_INIT_TMR); - writel(0x0002, cdns_phy->sd_base + CMN_SD_CAL_ITER_TMR); - writel(0x000E, cdns_phy->sd_base + CMN_SD_CAL_REFTIM_START); - writel(0x012B, cdns_phy->sd_base + CMN_SD_CAL_PLLCNT_START); + cdns_torrent_phy_write(cdns_phy, CMN_SSM_BIAS_TMR, 0x0019); + cdns_torrent_phy_write(cdns_phy, CMN_PLLSM0_PLLPRE_TMR, 0x0032); + cdns_torrent_phy_write(cdns_phy, CMN_PLLSM0_PLLLOCK_TMR, 0x00D1); + cdns_torrent_phy_write(cdns_phy, CMN_PLLSM1_PLLPRE_TMR, 0x0032); + cdns_torrent_phy_write(cdns_phy, CMN_PLLSM1_PLLLOCK_TMR, 0x00D1); + cdns_torrent_phy_write(cdns_phy, CMN_BGCAL_INIT_TMR, 0x007D); + cdns_torrent_phy_write(cdns_phy, CMN_BGCAL_ITER_TMR, 0x007D); + cdns_torrent_phy_write(cdns_phy, CMN_IBCAL_INIT_TMR, 0x0019); + cdns_torrent_phy_write(cdns_phy, CMN_TXPUCAL_INIT_TMR, 0x001E); + cdns_torrent_phy_write(cdns_phy, CMN_TXPUCAL_ITER_TMR, 0x0006); + cdns_torrent_phy_write(cdns_phy, CMN_TXPDCAL_INIT_TMR, 0x001E); + cdns_torrent_phy_write(cdns_phy, CMN_TXPDCAL_ITER_TMR, 0x0006); + cdns_torrent_phy_write(cdns_phy, CMN_RXCAL_INIT_TMR, 0x02EE); + cdns_torrent_phy_write(cdns_phy, CMN_RXCAL_ITER_TMR, 0x0006); + cdns_torrent_phy_write(cdns_phy, CMN_SD_CAL_INIT_TMR, 0x0002); + cdns_torrent_phy_write(cdns_phy, CMN_SD_CAL_ITER_TMR, 0x0002); + cdns_torrent_phy_write(cdns_phy, CMN_SD_CAL_REFTIM_START, 0x000E); + cdns_torrent_phy_write(cdns_phy, CMN_SD_CAL_PLLCNT_START, 0x012B); + /* PLL registers */ - writel(0x0409, cdns_phy->sd_base + CMN_PDIAG_PLL0_CP_PADJ_M0); - writel(0x1001, cdns_phy->sd_base + CMN_PDIAG_PLL0_CP_IADJ_M0); - writel(0x0F08, cdns_phy->sd_base + CMN_PDIAG_PLL0_FILT_PADJ_M0); - writel(0x0004, cdns_phy->sd_base + CMN_PLL0_DSM_DIAG_M0); - writel(0x00FA, cdns_phy->sd_base + CMN_PLL0_VCOCAL_INIT_TMR); - writel(0x0004, cdns_phy->sd_base + CMN_PLL0_VCOCAL_ITER_TMR); - writel(0x00FA, cdns_phy->sd_base + CMN_PLL1_VCOCAL_INIT_TMR); - writel(0x0004, cdns_phy->sd_base + CMN_PLL1_VCOCAL_ITER_TMR); - writel(0x0318, cdns_phy->sd_base + CMN_PLL0_VCOCAL_REFTIM_START); + cdns_torrent_phy_write(cdns_phy, CMN_PDIAG_PLL0_CP_PADJ_M0, 0x0409); + cdns_torrent_phy_write(cdns_phy, CMN_PDIAG_PLL0_CP_IADJ_M0, 0x1001); + cdns_torrent_phy_write(cdns_phy, CMN_PDIAG_PLL0_FILT_PADJ_M0, 0x0F08); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_DSM_DIAG_M0, 0x0004); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_VCOCAL_INIT_TMR, 0x00FA); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_VCOCAL_ITER_TMR, 0x0004); + cdns_torrent_phy_write(cdns_phy, CMN_PLL1_VCOCAL_INIT_TMR, 0x00FA); + cdns_torrent_phy_write(cdns_phy, CMN_PLL1_VCOCAL_ITER_TMR, 0x0004); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_VCOCAL_REFTIM_START, 0x0318); } static @@ -269,41 +278,41 @@ void cdns_torrent_dp_pma_cmn_vco_cfg_25mhz(struct cdns_torrent_phy *cdns_phy) { /* Assumes 25 MHz refclock */ switch (cdns_phy->max_bit_rate) { - /* Setting VCO for 10.8GHz */ + /* Setting VCO for 10.8GHz */ case 2700: case 5400: - writel(0x01B0, cdns_phy->sd_base + CMN_PLL0_INTDIV_M0); - writel(0x0000, cdns_phy->sd_base + CMN_PLL0_FRACDIVL_M0); - writel(0x0002, cdns_phy->sd_base + CMN_PLL0_FRACDIVH_M0); - writel(0x0120, cdns_phy->sd_base + CMN_PLL0_HIGH_THR_M0); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_INTDIV_M0, 0x01B0); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_FRACDIVL_M0, 0x0000); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_HIGH_THR_M0, 0x0120); break; - /* Setting VCO for 9.72GHz */ + /* Setting VCO for 9.72GHz */ case 2430: case 3240: - writel(0x0184, cdns_phy->sd_base + CMN_PLL0_INTDIV_M0); - writel(0xCCCD, cdns_phy->sd_base + CMN_PLL0_FRACDIVL_M0); - writel(0x0002, cdns_phy->sd_base + CMN_PLL0_FRACDIVH_M0); - writel(0x0104, cdns_phy->sd_base + CMN_PLL0_HIGH_THR_M0); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_INTDIV_M0, 0x0184); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_FRACDIVL_M0, 0xCCCD); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_HIGH_THR_M0, 0x0104); break; - /* Setting VCO for 8.64GHz */ + /* Setting VCO for 8.64GHz */ case 2160: case 4320: - writel(0x0159, cdns_phy->sd_base + CMN_PLL0_INTDIV_M0); - writel(0x999A, cdns_phy->sd_base + CMN_PLL0_FRACDIVL_M0); - writel(0x0002, cdns_phy->sd_base + CMN_PLL0_FRACDIVH_M0); - writel(0x00E7, cdns_phy->sd_base + CMN_PLL0_HIGH_THR_M0); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_INTDIV_M0, 0x0159); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_FRACDIVL_M0, 0x999A); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_HIGH_THR_M0, 0x00E7); break; - /* Setting VCO for 8.1GHz */ + /* Setting VCO for 8.1GHz */ case 8100: - writel(0x0144, cdns_phy->sd_base + CMN_PLL0_INTDIV_M0); - writel(0x0000, cdns_phy->sd_base + CMN_PLL0_FRACDIVL_M0); - writel(0x0002, cdns_phy->sd_base + CMN_PLL0_FRACDIVH_M0); - writel(0x00D8, cdns_phy->sd_base + CMN_PLL0_HIGH_THR_M0); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_INTDIV_M0, 0x0144); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_FRACDIVL_M0, 0x0000); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_FRACDIVH_M0, 0x0002); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_HIGH_THR_M0, 0x00D8); break; } - writel(0x0002, cdns_phy->sd_base + CMN_PDIAG_PLL0_CTRL_M0); - writel(0x0318, cdns_phy->sd_base + CMN_PLL0_VCOCAL_PLLCNT_START); + cdns_torrent_phy_write(cdns_phy, CMN_PDIAG_PLL0_CTRL_M0, 0x0002); + cdns_torrent_phy_write(cdns_phy, CMN_PLL0_VCOCAL_PLLCNT_START, 0x0318); } static void cdns_torrent_dp_pma_cmn_rate(struct cdns_torrent_phy *cdns_phy) @@ -313,7 +322,7 @@ static void cdns_torrent_dp_pma_cmn_rate(struct cdns_torrent_phy *cdns_phy) unsigned int i; /* 16'h0000 for single DP link configuration */ - writel(0x0000, cdns_phy->sd_base + PHY_PLL_CFG); + cdns_torrent_phy_write(cdns_phy, PHY_PLL_CFG, 0x0000); switch (cdns_phy->max_bit_rate) { case 1620: @@ -324,7 +333,7 @@ static void cdns_torrent_dp_pma_cmn_rate(struct cdns_torrent_phy *cdns_phy) case 2430: case 2700: clk_sel_val = 0x0701; - hsclk_div_val = 1; + hsclk_div_val = 1; break; case 3240: clk_sel_val = 0x0b00; @@ -341,13 +350,14 @@ static void cdns_torrent_dp_pma_cmn_rate(struct cdns_torrent_phy *cdns_phy) break; } - writel(clk_sel_val, cdns_phy->sd_base + CMN_PDIAG_PLL0_CLK_SEL_M0); + cdns_torrent_phy_write(cdns_phy, + CMN_PDIAG_PLL0_CLK_SEL_M0, clk_sel_val); /* PMA lane configuration to deal with multi-link operation */ - for (i = 0; i < cdns_phy->num_lanes; i++) { - writel(hsclk_div_val, - cdns_phy->sd_base + (XCVR_DIAG_HSCLK_DIV | (i << 11))); - } + for (i = 0; i < cdns_phy->num_lanes; i++) + cdns_torrent_phy_write(cdns_phy, + (XCVR_DIAG_HSCLK_DIV | (i << 11)), + hsclk_div_val); } static void cdns_torrent_dp_pma_lane_cfg(struct cdns_torrent_phy *cdns_phy, @@ -356,15 +366,17 @@ static void cdns_torrent_dp_pma_lane_cfg(struct cdns_torrent_phy *cdns_phy, unsigned int lane_bits = (lane & LANE_MASK) << 11; /* Writing Tx/Rx Power State Controllers registers */ - writel(0x00FB, cdns_phy->sd_base + (TX_PSC_A0 | lane_bits)); - writel(0x04AA, cdns_phy->sd_base + (TX_PSC_A2 | lane_bits)); - writel(0x04AA, cdns_phy->sd_base + (TX_PSC_A3 | lane_bits)); - writel(0x0000, cdns_phy->sd_base + (RX_PSC_A0 | lane_bits)); - writel(0x0000, cdns_phy->sd_base + (RX_PSC_A2 | lane_bits)); - writel(0x0000, cdns_phy->sd_base + (RX_PSC_A3 | lane_bits)); - - writel(0x0001, cdns_phy->sd_base + (XCVR_DIAG_PLLDRC_CTRL | lane_bits)); - writel(0x0000, cdns_phy->sd_base + (XCVR_DIAG_HSCLK_SEL | lane_bits)); + cdns_torrent_phy_write(cdns_phy, (TX_PSC_A0 | lane_bits), 0x00FB); + cdns_torrent_phy_write(cdns_phy, (TX_PSC_A2 | lane_bits), 0x04AA); + cdns_torrent_phy_write(cdns_phy, (TX_PSC_A3 | lane_bits), 0x04AA); + cdns_torrent_phy_write(cdns_phy, (RX_PSC_A0 | lane_bits), 0x0000); + cdns_torrent_phy_write(cdns_phy, (RX_PSC_A2 | lane_bits), 0x0000); + cdns_torrent_phy_write(cdns_phy, (RX_PSC_A3 | lane_bits), 0x0000); + + cdns_torrent_phy_write(cdns_phy, + (XCVR_DIAG_PLLDRC_CTRL | lane_bits), 0x0001); + cdns_torrent_phy_write(cdns_phy, + (XCVR_DIAG_HSCLK_SEL | lane_bits), 0x0000); } static void cdns_torrent_dp_run(struct cdns_torrent_phy *cdns_phy) -- cgit v1.2.3