| Message ID | 20201224114250.1083-6-kishon@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | AM64: Add SERDES bindings and driver support | expand |
On 24-12-20, 17:12, Kishon Vijay Abraham I wrote: > The frequency of the txmclk between PCIe and SERDES has > changed to 250MHz from 500MHz. Configure full rate divider > for AM64 accordingly. > > Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> > --- > drivers/phy/ti/phy-j721e-wiz.c | 43 +++++++++++++++++++++++++++++++--- > 1 file changed, 40 insertions(+), 3 deletions(-) > > diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c > index 2a03191eac64..08acfab1ebe6 100644 > --- a/drivers/phy/ti/phy-j721e-wiz.c > +++ b/drivers/phy/ti/phy-j721e-wiz.c > @@ -101,6 +101,13 @@ static const struct reg_field p_standard_mode[WIZ_MAX_LANES] = { > REG_FIELD(WIZ_LANECTL(3), 24, 25), > }; > > +static const struct reg_field p0_fullrt_div[WIZ_MAX_LANES] = { > + REG_FIELD(WIZ_LANECTL(0), 22, 23), > + REG_FIELD(WIZ_LANECTL(1), 22, 23), > + REG_FIELD(WIZ_LANECTL(2), 22, 23), > + REG_FIELD(WIZ_LANECTL(3), 22, 23), > +}; > + > static const struct reg_field typec_ln10_swap = > REG_FIELD(WIZ_SERDES_TYPEC, 30, 30); > > @@ -193,6 +200,7 @@ static struct wiz_clk_div_sel clk_div_sel[] = { > enum wiz_type { > J721E_WIZ_16G, > J721E_WIZ_10G, > + AM64_WIZ_10G, > }; > > #define WIZ_TYPEC_DIR_DEBOUNCE_MIN 100 /* ms */ > @@ -210,6 +218,7 @@ struct wiz { > struct regmap_field *p_align[WIZ_MAX_LANES]; > struct regmap_field *p_raw_auto_start[WIZ_MAX_LANES]; > struct regmap_field *p_standard_mode[WIZ_MAX_LANES]; > + struct regmap_field *p0_fullrt_div[WIZ_MAX_LANES]; > struct regmap_field *pma_cmn_refclk_int_mode; > struct regmap_field *pma_cmn_refclk_mode; > struct regmap_field *pma_cmn_refclk_dig_div; > @@ -380,7 +389,7 @@ static int wiz_regfield_init(struct wiz *wiz) > } > > clk_mux_sel = &wiz->clk_mux_sel[REFCLK_DIG]; > - if (wiz->type == J721E_WIZ_10G) > + if (wiz->type == J721E_WIZ_10G || wiz->type == AM64_WIZ_10G) > clk_mux_sel->field = > devm_regmap_field_alloc(dev, regmap, > refclk_dig_sel_10g); > @@ -424,6 +433,14 @@ static int wiz_regfield_init(struct wiz *wiz) > i); > return PTR_ERR(wiz->p_standard_mode[i]); > } > + > + wiz->p0_fullrt_div[i] = > + devm_regmap_field_alloc(dev, regmap, p0_fullrt_div[i]); > + if (IS_ERR(wiz->p0_fullrt_div[i])) { > + dev_err(dev, "P%d_FULLRT_DIV reg field init failed\n", > + i); single line? > + return PTR_ERR(wiz->p0_fullrt_div[i]); > + } > } > > wiz->typec_ln10_swap = devm_regmap_field_alloc(dev, regmap, > @@ -719,6 +736,19 @@ static int wiz_phy_reset_assert(struct reset_controller_dev *rcdev, > return ret; > } > > +static int wiz_phy_fullrt_div(struct wiz *wiz, int lane) > +{ > + int ret = 0; drop the variable.. > + > + if (wiz->type != AM64_WIZ_10G) > + return 0; > + > + if (wiz->lane_phy_type[lane] == PHY_TYPE_PCIE) > + ret = regmap_field_write(wiz->p0_fullrt_div[lane], 0x1); return regmap_ > + > + return ret; return 0 > +} > + > static int wiz_phy_reset_deassert(struct reset_controller_dev *rcdev, > unsigned long id) > { > @@ -742,6 +772,10 @@ static int wiz_phy_reset_deassert(struct reset_controller_dev *rcdev, > return ret; > } > > + ret = wiz_phy_fullrt_div(wiz, id - 1); > + if (ret) > + return ret; > + > if (wiz->lane_phy_type[id - 1] == PHY_TYPE_DP) > ret = regmap_field_write(wiz->p_enable[id - 1], P_ENABLE); > else > @@ -769,6 +803,9 @@ static const struct of_device_id wiz_id_table[] = { > { > .compatible = "ti,j721e-wiz-10g", .data = (void *)J721E_WIZ_10G > }, > + { > + .compatible = "ti,am64-wiz-10g", .data = (void *)AM64_WIZ_10G > + }, > {} > }; > MODULE_DEVICE_TABLE(of, wiz_id_table); > @@ -904,14 +941,14 @@ static int wiz_probe(struct platform_device *pdev) > wiz->dev = dev; > wiz->regmap = regmap; > wiz->num_lanes = num_lanes; > - if (wiz->type == J721E_WIZ_10G) > + if (wiz->type == J721E_WIZ_10G || wiz->type == AM64_WIZ_10G) > wiz->clk_mux_sel = clk_mux_sel_10g; > else > wiz->clk_mux_sel = clk_mux_sel_16g; > > wiz->clk_div_sel = clk_div_sel; > > - if (wiz->type == J721E_WIZ_10G) > + if (wiz->type == J721E_WIZ_10G || wiz->type == AM64_WIZ_10G) > wiz->clk_div_sel_num = WIZ_DIV_NUM_CLOCKS_10G; > else > wiz->clk_div_sel_num = WIZ_DIV_NUM_CLOCKS_16G; > -- > 2.17.1
diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c index 2a03191eac64..08acfab1ebe6 100644 --- a/drivers/phy/ti/phy-j721e-wiz.c +++ b/drivers/phy/ti/phy-j721e-wiz.c @@ -101,6 +101,13 @@ static const struct reg_field p_standard_mode[WIZ_MAX_LANES] = { REG_FIELD(WIZ_LANECTL(3), 24, 25), }; +static const struct reg_field p0_fullrt_div[WIZ_MAX_LANES] = { + REG_FIELD(WIZ_LANECTL(0), 22, 23), + REG_FIELD(WIZ_LANECTL(1), 22, 23), + REG_FIELD(WIZ_LANECTL(2), 22, 23), + REG_FIELD(WIZ_LANECTL(3), 22, 23), +}; + static const struct reg_field typec_ln10_swap = REG_FIELD(WIZ_SERDES_TYPEC, 30, 30); @@ -193,6 +200,7 @@ static struct wiz_clk_div_sel clk_div_sel[] = { enum wiz_type { J721E_WIZ_16G, J721E_WIZ_10G, + AM64_WIZ_10G, }; #define WIZ_TYPEC_DIR_DEBOUNCE_MIN 100 /* ms */ @@ -210,6 +218,7 @@ struct wiz { struct regmap_field *p_align[WIZ_MAX_LANES]; struct regmap_field *p_raw_auto_start[WIZ_MAX_LANES]; struct regmap_field *p_standard_mode[WIZ_MAX_LANES]; + struct regmap_field *p0_fullrt_div[WIZ_MAX_LANES]; struct regmap_field *pma_cmn_refclk_int_mode; struct regmap_field *pma_cmn_refclk_mode; struct regmap_field *pma_cmn_refclk_dig_div; @@ -380,7 +389,7 @@ static int wiz_regfield_init(struct wiz *wiz) } clk_mux_sel = &wiz->clk_mux_sel[REFCLK_DIG]; - if (wiz->type == J721E_WIZ_10G) + if (wiz->type == J721E_WIZ_10G || wiz->type == AM64_WIZ_10G) clk_mux_sel->field = devm_regmap_field_alloc(dev, regmap, refclk_dig_sel_10g); @@ -424,6 +433,14 @@ static int wiz_regfield_init(struct wiz *wiz) i); return PTR_ERR(wiz->p_standard_mode[i]); } + + wiz->p0_fullrt_div[i] = + devm_regmap_field_alloc(dev, regmap, p0_fullrt_div[i]); + if (IS_ERR(wiz->p0_fullrt_div[i])) { + dev_err(dev, "P%d_FULLRT_DIV reg field init failed\n", + i); + return PTR_ERR(wiz->p0_fullrt_div[i]); + } } wiz->typec_ln10_swap = devm_regmap_field_alloc(dev, regmap, @@ -719,6 +736,19 @@ static int wiz_phy_reset_assert(struct reset_controller_dev *rcdev, return ret; } +static int wiz_phy_fullrt_div(struct wiz *wiz, int lane) +{ + int ret = 0; + + if (wiz->type != AM64_WIZ_10G) + return 0; + + if (wiz->lane_phy_type[lane] == PHY_TYPE_PCIE) + ret = regmap_field_write(wiz->p0_fullrt_div[lane], 0x1); + + return ret; +} + static int wiz_phy_reset_deassert(struct reset_controller_dev *rcdev, unsigned long id) { @@ -742,6 +772,10 @@ static int wiz_phy_reset_deassert(struct reset_controller_dev *rcdev, return ret; } + ret = wiz_phy_fullrt_div(wiz, id - 1); + if (ret) + return ret; + if (wiz->lane_phy_type[id - 1] == PHY_TYPE_DP) ret = regmap_field_write(wiz->p_enable[id - 1], P_ENABLE); else @@ -769,6 +803,9 @@ static const struct of_device_id wiz_id_table[] = { { .compatible = "ti,j721e-wiz-10g", .data = (void *)J721E_WIZ_10G }, + { + .compatible = "ti,am64-wiz-10g", .data = (void *)AM64_WIZ_10G + }, {} }; MODULE_DEVICE_TABLE(of, wiz_id_table); @@ -904,14 +941,14 @@ static int wiz_probe(struct platform_device *pdev) wiz->dev = dev; wiz->regmap = regmap; wiz->num_lanes = num_lanes; - if (wiz->type == J721E_WIZ_10G) + if (wiz->type == J721E_WIZ_10G || wiz->type == AM64_WIZ_10G) wiz->clk_mux_sel = clk_mux_sel_10g; else wiz->clk_mux_sel = clk_mux_sel_16g; wiz->clk_div_sel = clk_div_sel; - if (wiz->type == J721E_WIZ_10G) + if (wiz->type == J721E_WIZ_10G || wiz->type == AM64_WIZ_10G) wiz->clk_div_sel_num = WIZ_DIV_NUM_CLOCKS_10G; else wiz->clk_div_sel_num = WIZ_DIV_NUM_CLOCKS_16G;
The frequency of the txmclk between PCIe and SERDES has changed to 250MHz from 500MHz. Configure full rate divider for AM64 accordingly. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- drivers/phy/ti/phy-j721e-wiz.c | 43 +++++++++++++++++++++++++++++++--- 1 file changed, 40 insertions(+), 3 deletions(-)