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-rw-r--r--drivers/phy/ti/phy-j721e-wiz.c1584
1 files changed, 1584 insertions, 0 deletions
diff --git a/drivers/phy/ti/phy-j721e-wiz.c b/drivers/phy/ti/phy-j721e-wiz.c
new file mode 100644
index 000000000..6a63380f6
--- /dev/null
+++ b/drivers/phy/ti/phy-j721e-wiz.c
@@ -0,0 +1,1584 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Wrapper driver for SERDES used in J721E
+ *
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ */
+
+#include <dt-bindings/phy/phy.h>
+#include <dt-bindings/phy/phy-ti.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mux/consumer.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/reset-controller.h>
+
+#define REF_CLK_19_2MHZ 19200000
+#define REF_CLK_25MHZ 25000000
+#define REF_CLK_100MHZ 100000000
+#define REF_CLK_156_25MHZ 156250000
+
+/* SCM offsets */
+#define SERDES_SUP_CTRL 0x4400
+
+/* SERDES offsets */
+#define WIZ_SERDES_CTRL 0x404
+#define WIZ_SERDES_TOP_CTRL 0x408
+#define WIZ_SERDES_RST 0x40c
+#define WIZ_SERDES_TYPEC 0x410
+#define WIZ_LANECTL(n) (0x480 + (0x40 * (n)))
+#define WIZ_LANEDIV(n) (0x484 + (0x40 * (n)))
+
+#define WIZ_MAX_INPUT_CLOCKS 4
+/* To include mux clocks, divider clocks and gate clocks */
+#define WIZ_MAX_OUTPUT_CLOCKS 32
+
+#define WIZ_MAX_LANES 4
+#define WIZ_MUX_NUM_CLOCKS 3
+#define WIZ_DIV_NUM_CLOCKS_16G 2
+#define WIZ_DIV_NUM_CLOCKS_10G 1
+
+#define WIZ_SERDES_TYPEC_LN10_SWAP BIT(30)
+
+enum wiz_lane_standard_mode {
+ LANE_MODE_GEN1,
+ LANE_MODE_GEN2,
+ LANE_MODE_GEN3,
+ LANE_MODE_GEN4,
+};
+
+enum wiz_refclk_mux_sel {
+ PLL0_REFCLK,
+ PLL1_REFCLK,
+ REFCLK_DIG,
+};
+
+enum wiz_refclk_div_sel {
+ CMN_REFCLK_DIG_DIV,
+ CMN_REFCLK1_DIG_DIV,
+};
+
+enum wiz_clock_input {
+ WIZ_CORE_REFCLK,
+ WIZ_EXT_REFCLK,
+ WIZ_CORE_REFCLK1,
+ WIZ_EXT_REFCLK1,
+};
+
+static const struct reg_field por_en = REG_FIELD(WIZ_SERDES_CTRL, 31, 31);
+static const struct reg_field phy_reset_n = REG_FIELD(WIZ_SERDES_RST, 31, 31);
+static const struct reg_field phy_en_refclk = REG_FIELD(WIZ_SERDES_RST, 30, 30);
+static const struct reg_field pll1_refclk_mux_sel =
+ REG_FIELD(WIZ_SERDES_RST, 29, 29);
+static const struct reg_field pll0_refclk_mux_sel =
+ REG_FIELD(WIZ_SERDES_RST, 28, 28);
+static const struct reg_field refclk_dig_sel_16g =
+ REG_FIELD(WIZ_SERDES_RST, 24, 25);
+static const struct reg_field refclk_dig_sel_10g =
+ REG_FIELD(WIZ_SERDES_RST, 24, 24);
+static const struct reg_field pma_cmn_refclk_int_mode =
+ REG_FIELD(WIZ_SERDES_TOP_CTRL, 28, 29);
+static const struct reg_field pma_cmn_refclk_mode =
+ REG_FIELD(WIZ_SERDES_TOP_CTRL, 30, 31);
+static const struct reg_field pma_cmn_refclk_dig_div =
+ REG_FIELD(WIZ_SERDES_TOP_CTRL, 26, 27);
+static const struct reg_field pma_cmn_refclk1_dig_div =
+ REG_FIELD(WIZ_SERDES_TOP_CTRL, 24, 25);
+
+static const struct reg_field sup_pll0_refclk_mux_sel =
+ REG_FIELD(SERDES_SUP_CTRL, 0, 1);
+static const struct reg_field sup_pll1_refclk_mux_sel =
+ REG_FIELD(SERDES_SUP_CTRL, 2, 3);
+static const struct reg_field sup_pma_cmn_refclk1_int_mode =
+ REG_FIELD(SERDES_SUP_CTRL, 4, 5);
+static const struct reg_field sup_refclk_dig_sel_10g =
+ REG_FIELD(SERDES_SUP_CTRL, 6, 7);
+static const struct reg_field sup_legacy_clk_override =
+ REG_FIELD(SERDES_SUP_CTRL, 8, 8);
+
+static const char * const output_clk_names[] = {
+ [TI_WIZ_PLL0_REFCLK] = "pll0-refclk",
+ [TI_WIZ_PLL1_REFCLK] = "pll1-refclk",
+ [TI_WIZ_REFCLK_DIG] = "refclk-dig",
+ [TI_WIZ_PHY_EN_REFCLK] = "phy-en-refclk",
+};
+
+static const struct reg_field p_enable[WIZ_MAX_LANES] = {
+ REG_FIELD(WIZ_LANECTL(0), 30, 31),
+ REG_FIELD(WIZ_LANECTL(1), 30, 31),
+ REG_FIELD(WIZ_LANECTL(2), 30, 31),
+ REG_FIELD(WIZ_LANECTL(3), 30, 31),
+};
+
+enum p_enable { P_ENABLE = 2, P_ENABLE_FORCE = 1, P_ENABLE_DISABLE = 0 };
+
+static const struct reg_field p_align[WIZ_MAX_LANES] = {
+ REG_FIELD(WIZ_LANECTL(0), 29, 29),
+ REG_FIELD(WIZ_LANECTL(1), 29, 29),
+ REG_FIELD(WIZ_LANECTL(2), 29, 29),
+ REG_FIELD(WIZ_LANECTL(3), 29, 29),
+};
+
+static const struct reg_field p_raw_auto_start[WIZ_MAX_LANES] = {
+ REG_FIELD(WIZ_LANECTL(0), 28, 28),
+ REG_FIELD(WIZ_LANECTL(1), 28, 28),
+ REG_FIELD(WIZ_LANECTL(2), 28, 28),
+ REG_FIELD(WIZ_LANECTL(3), 28, 28),
+};
+
+static const struct reg_field p_standard_mode[WIZ_MAX_LANES] = {
+ REG_FIELD(WIZ_LANECTL(0), 24, 25),
+ REG_FIELD(WIZ_LANECTL(1), 24, 25),
+ REG_FIELD(WIZ_LANECTL(2), 24, 25),
+ 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 p0_mac_src_sel[WIZ_MAX_LANES] = {
+ REG_FIELD(WIZ_LANECTL(0), 20, 21),
+ REG_FIELD(WIZ_LANECTL(1), 20, 21),
+ REG_FIELD(WIZ_LANECTL(2), 20, 21),
+ REG_FIELD(WIZ_LANECTL(3), 20, 21),
+};
+
+static const struct reg_field p0_rxfclk_sel[WIZ_MAX_LANES] = {
+ REG_FIELD(WIZ_LANECTL(0), 6, 7),
+ REG_FIELD(WIZ_LANECTL(1), 6, 7),
+ REG_FIELD(WIZ_LANECTL(2), 6, 7),
+ REG_FIELD(WIZ_LANECTL(3), 6, 7),
+};
+
+static const struct reg_field p0_refclk_sel[WIZ_MAX_LANES] = {
+ REG_FIELD(WIZ_LANECTL(0), 18, 19),
+ REG_FIELD(WIZ_LANECTL(1), 18, 19),
+ REG_FIELD(WIZ_LANECTL(2), 18, 19),
+ REG_FIELD(WIZ_LANECTL(3), 18, 19),
+};
+static const struct reg_field p_mac_div_sel0[WIZ_MAX_LANES] = {
+ REG_FIELD(WIZ_LANEDIV(0), 16, 22),
+ REG_FIELD(WIZ_LANEDIV(1), 16, 22),
+ REG_FIELD(WIZ_LANEDIV(2), 16, 22),
+ REG_FIELD(WIZ_LANEDIV(3), 16, 22),
+};
+
+static const struct reg_field p_mac_div_sel1[WIZ_MAX_LANES] = {
+ REG_FIELD(WIZ_LANEDIV(0), 0, 8),
+ REG_FIELD(WIZ_LANEDIV(1), 0, 8),
+ REG_FIELD(WIZ_LANEDIV(2), 0, 8),
+ REG_FIELD(WIZ_LANEDIV(3), 0, 8),
+};
+
+static const struct reg_field typec_ln10_swap =
+ REG_FIELD(WIZ_SERDES_TYPEC, 30, 30);
+
+struct wiz_clk_mux {
+ struct clk_hw hw;
+ struct regmap_field *field;
+ const u32 *table;
+ struct clk_init_data clk_data;
+};
+
+#define to_wiz_clk_mux(_hw) container_of(_hw, struct wiz_clk_mux, hw)
+
+struct wiz_clk_divider {
+ struct clk_hw hw;
+ struct regmap_field *field;
+ const struct clk_div_table *table;
+ struct clk_init_data clk_data;
+};
+
+#define to_wiz_clk_div(_hw) container_of(_hw, struct wiz_clk_divider, hw)
+
+struct wiz_clk_mux_sel {
+ u32 table[WIZ_MAX_INPUT_CLOCKS];
+ const char *node_name;
+ u32 num_parents;
+ u32 parents[WIZ_MAX_INPUT_CLOCKS];
+};
+
+struct wiz_clk_div_sel {
+ const struct clk_div_table *table;
+ const char *node_name;
+};
+
+struct wiz_phy_en_refclk {
+ struct clk_hw hw;
+ struct regmap_field *phy_en_refclk;
+ struct clk_init_data clk_data;
+};
+
+#define to_wiz_phy_en_refclk(_hw) container_of(_hw, struct wiz_phy_en_refclk, hw)
+
+static const struct wiz_clk_mux_sel clk_mux_sel_16g[] = {
+ {
+ /*
+ * Mux value to be configured for each of the input clocks
+ * in the order populated in device tree
+ */
+ .table = { 1, 0 },
+ .node_name = "pll0-refclk",
+ },
+ {
+ .table = { 1, 0 },
+ .node_name = "pll1-refclk",
+ },
+ {
+ .table = { 1, 3, 0, 2 },
+ .node_name = "refclk-dig",
+ },
+};
+
+static const struct wiz_clk_mux_sel clk_mux_sel_10g[] = {
+ {
+ /*
+ * Mux value to be configured for each of the input clocks
+ * in the order populated in device tree
+ */
+ .num_parents = 2,
+ .parents = { WIZ_CORE_REFCLK, WIZ_EXT_REFCLK },
+ .table = { 1, 0 },
+ .node_name = "pll0-refclk",
+ },
+ {
+ .num_parents = 2,
+ .parents = { WIZ_CORE_REFCLK, WIZ_EXT_REFCLK },
+ .table = { 1, 0 },
+ .node_name = "pll1-refclk",
+ },
+ {
+ .num_parents = 2,
+ .parents = { WIZ_CORE_REFCLK, WIZ_EXT_REFCLK },
+ .table = { 1, 0 },
+ .node_name = "refclk-dig",
+ },
+};
+
+static const struct wiz_clk_mux_sel clk_mux_sel_10g_2_refclk[] = {
+ {
+ .num_parents = 3,
+ .parents = { WIZ_CORE_REFCLK, WIZ_CORE_REFCLK1, WIZ_EXT_REFCLK },
+ .table = { 2, 3, 0 },
+ .node_name = "pll0-refclk",
+ },
+ {
+ .num_parents = 3,
+ .parents = { WIZ_CORE_REFCLK, WIZ_CORE_REFCLK1, WIZ_EXT_REFCLK },
+ .table = { 2, 3, 0 },
+ .node_name = "pll1-refclk",
+ },
+ {
+ .num_parents = 3,
+ .parents = { WIZ_CORE_REFCLK, WIZ_CORE_REFCLK1, WIZ_EXT_REFCLK },
+ .table = { 2, 3, 0 },
+ .node_name = "refclk-dig",
+ },
+};
+
+static const struct clk_div_table clk_div_table[] = {
+ { .val = 0, .div = 1, },
+ { .val = 1, .div = 2, },
+ { .val = 2, .div = 4, },
+ { .val = 3, .div = 8, },
+ { /* sentinel */ },
+};
+
+static const struct wiz_clk_div_sel clk_div_sel[] = {
+ {
+ .table = clk_div_table,
+ .node_name = "cmn-refclk-dig-div",
+ },
+ {
+ .table = clk_div_table,
+ .node_name = "cmn-refclk1-dig-div",
+ },
+};
+
+enum wiz_type {
+ J721E_WIZ_16G,
+ J721E_WIZ_10G, /* Also for J7200 SR1.0 */
+ AM64_WIZ_10G,
+ J7200_WIZ_10G, /* J7200 SR2.0 */
+};
+
+struct wiz_data {
+ enum wiz_type type;
+ const struct reg_field *pll0_refclk_mux_sel;
+ const struct reg_field *pll1_refclk_mux_sel;
+ const struct reg_field *refclk_dig_sel;
+ const struct reg_field *pma_cmn_refclk1_dig_div;
+ const struct reg_field *pma_cmn_refclk1_int_mode;
+ const struct wiz_clk_mux_sel *clk_mux_sel;
+ unsigned int clk_div_sel_num;
+};
+
+#define WIZ_TYPEC_DIR_DEBOUNCE_MIN 100 /* ms */
+#define WIZ_TYPEC_DIR_DEBOUNCE_MAX 1000
+
+struct wiz {
+ struct regmap *regmap;
+ struct regmap *scm_regmap;
+ enum wiz_type type;
+ const struct wiz_clk_mux_sel *clk_mux_sel;
+ const struct wiz_clk_div_sel *clk_div_sel;
+ unsigned int clk_div_sel_num;
+ struct regmap_field *por_en;
+ struct regmap_field *phy_reset_n;
+ struct regmap_field *phy_en_refclk;
+ struct regmap_field *p_enable[WIZ_MAX_LANES];
+ 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 *p_mac_div_sel0[WIZ_MAX_LANES];
+ struct regmap_field *p_mac_div_sel1[WIZ_MAX_LANES];
+ struct regmap_field *p0_fullrt_div[WIZ_MAX_LANES];
+ struct regmap_field *p0_mac_src_sel[WIZ_MAX_LANES];
+ struct regmap_field *p0_rxfclk_sel[WIZ_MAX_LANES];
+ struct regmap_field *p0_refclk_sel[WIZ_MAX_LANES];
+ struct regmap_field *pma_cmn_refclk_int_mode;
+ struct regmap_field *pma_cmn_refclk1_int_mode;
+ struct regmap_field *pma_cmn_refclk_mode;
+ struct regmap_field *pma_cmn_refclk_dig_div;
+ struct regmap_field *pma_cmn_refclk1_dig_div;
+ struct regmap_field *mux_sel_field[WIZ_MUX_NUM_CLOCKS];
+ struct regmap_field *div_sel_field[WIZ_DIV_NUM_CLOCKS_16G];
+ struct regmap_field *typec_ln10_swap;
+ struct regmap_field *sup_legacy_clk_override;
+
+ struct device *dev;
+ u32 num_lanes;
+ struct platform_device *serdes_pdev;
+ struct reset_controller_dev wiz_phy_reset_dev;
+ struct gpio_desc *gpio_typec_dir;
+ int typec_dir_delay;
+ u32 lane_phy_type[WIZ_MAX_LANES];
+ struct clk *input_clks[WIZ_MAX_INPUT_CLOCKS];
+ struct clk *output_clks[WIZ_MAX_OUTPUT_CLOCKS];
+ struct clk_onecell_data clk_data;
+ const struct wiz_data *data;
+};
+
+static int wiz_reset(struct wiz *wiz)
+{
+ int ret;
+
+ ret = regmap_field_write(wiz->por_en, 0x1);
+ if (ret)
+ return ret;
+
+ mdelay(1);
+
+ ret = regmap_field_write(wiz->por_en, 0x0);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int wiz_p_mac_div_sel(struct wiz *wiz)
+{
+ u32 num_lanes = wiz->num_lanes;
+ int ret;
+ int i;
+
+ for (i = 0; i < num_lanes; i++) {
+ if (wiz->lane_phy_type[i] == PHY_TYPE_SGMII ||
+ wiz->lane_phy_type[i] == PHY_TYPE_QSGMII ||
+ wiz->lane_phy_type[i] == PHY_TYPE_USXGMII) {
+ ret = regmap_field_write(wiz->p_mac_div_sel0[i], 1);
+ if (ret)
+ return ret;
+
+ ret = regmap_field_write(wiz->p_mac_div_sel1[i], 2);
+ if (ret)
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int wiz_mode_select(struct wiz *wiz)
+{
+ u32 num_lanes = wiz->num_lanes;
+ enum wiz_lane_standard_mode mode;
+ int ret;
+ int i;
+
+ for (i = 0; i < num_lanes; i++) {
+ if (wiz->lane_phy_type[i] == PHY_TYPE_DP) {
+ mode = LANE_MODE_GEN1;
+ } else if (wiz->lane_phy_type[i] == PHY_TYPE_QSGMII) {
+ mode = LANE_MODE_GEN2;
+ } else if (wiz->lane_phy_type[i] == PHY_TYPE_USXGMII) {
+ ret = regmap_field_write(wiz->p0_mac_src_sel[i], 0x3);
+ ret = regmap_field_write(wiz->p0_rxfclk_sel[i], 0x3);
+ ret = regmap_field_write(wiz->p0_refclk_sel[i], 0x3);
+ mode = LANE_MODE_GEN1;
+ } else {
+ continue;
+ }
+
+ ret = regmap_field_write(wiz->p_standard_mode[i], mode);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int wiz_init_raw_interface(struct wiz *wiz, bool enable)
+{
+ u32 num_lanes = wiz->num_lanes;
+ int i;
+ int ret;
+
+ for (i = 0; i < num_lanes; i++) {
+ ret = regmap_field_write(wiz->p_align[i], enable);
+ if (ret)
+ return ret;
+
+ ret = regmap_field_write(wiz->p_raw_auto_start[i], enable);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+
+static int wiz_init(struct wiz *wiz)
+{
+ struct device *dev = wiz->dev;
+ int ret;
+
+ ret = wiz_reset(wiz);
+ if (ret) {
+ dev_err(dev, "WIZ reset failed\n");
+ return ret;
+ }
+
+ ret = wiz_mode_select(wiz);
+ if (ret) {
+ dev_err(dev, "WIZ mode select failed\n");
+ return ret;
+ }
+
+ ret = wiz_p_mac_div_sel(wiz);
+ if (ret) {
+ dev_err(dev, "Configuring P0 MAC DIV SEL failed\n");
+ return ret;
+ }
+
+ ret = wiz_init_raw_interface(wiz, true);
+ if (ret) {
+ dev_err(dev, "WIZ interface initialization failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
+static int wiz_regfield_init(struct wiz *wiz)
+{
+ struct regmap *regmap = wiz->regmap;
+ struct regmap *scm_regmap = wiz->regmap; /* updated later to scm_regmap if applicable */
+ int num_lanes = wiz->num_lanes;
+ struct device *dev = wiz->dev;
+ const struct wiz_data *data = wiz->data;
+ int i;
+
+ wiz->por_en = devm_regmap_field_alloc(dev, regmap, por_en);
+ if (IS_ERR(wiz->por_en)) {
+ dev_err(dev, "POR_EN reg field init failed\n");
+ return PTR_ERR(wiz->por_en);
+ }
+
+ wiz->phy_reset_n = devm_regmap_field_alloc(dev, regmap,
+ phy_reset_n);
+ if (IS_ERR(wiz->phy_reset_n)) {
+ dev_err(dev, "PHY_RESET_N reg field init failed\n");
+ return PTR_ERR(wiz->phy_reset_n);
+ }
+
+ wiz->pma_cmn_refclk_int_mode =
+ devm_regmap_field_alloc(dev, regmap, pma_cmn_refclk_int_mode);
+ if (IS_ERR(wiz->pma_cmn_refclk_int_mode)) {
+ dev_err(dev, "PMA_CMN_REFCLK_INT_MODE reg field init failed\n");
+ return PTR_ERR(wiz->pma_cmn_refclk_int_mode);
+ }
+
+ wiz->pma_cmn_refclk_mode =
+ devm_regmap_field_alloc(dev, regmap, pma_cmn_refclk_mode);
+ if (IS_ERR(wiz->pma_cmn_refclk_mode)) {
+ dev_err(dev, "PMA_CMN_REFCLK_MODE reg field init failed\n");
+ return PTR_ERR(wiz->pma_cmn_refclk_mode);
+ }
+
+ wiz->div_sel_field[CMN_REFCLK_DIG_DIV] =
+ devm_regmap_field_alloc(dev, regmap, pma_cmn_refclk_dig_div);
+ if (IS_ERR(wiz->div_sel_field[CMN_REFCLK_DIG_DIV])) {
+ dev_err(dev, "PMA_CMN_REFCLK_DIG_DIV reg field init failed\n");
+ return PTR_ERR(wiz->div_sel_field[CMN_REFCLK_DIG_DIV]);
+ }
+
+ if (data->pma_cmn_refclk1_dig_div) {
+ wiz->div_sel_field[CMN_REFCLK1_DIG_DIV] =
+ devm_regmap_field_alloc(dev, regmap,
+ *data->pma_cmn_refclk1_dig_div);
+ if (IS_ERR(wiz->div_sel_field[CMN_REFCLK1_DIG_DIV])) {
+ dev_err(dev, "PMA_CMN_REFCLK1_DIG_DIV reg field init failed\n");
+ return PTR_ERR(wiz->div_sel_field[CMN_REFCLK1_DIG_DIV]);
+ }
+ }
+
+ if (wiz->scm_regmap) {
+ scm_regmap = wiz->scm_regmap;
+ wiz->sup_legacy_clk_override =
+ devm_regmap_field_alloc(dev, scm_regmap, sup_legacy_clk_override);
+ if (IS_ERR(wiz->sup_legacy_clk_override)) {
+ dev_err(dev, "SUP_LEGACY_CLK_OVERRIDE reg field init failed\n");
+ return PTR_ERR(wiz->sup_legacy_clk_override);
+ }
+ }
+
+ wiz->mux_sel_field[PLL0_REFCLK] =
+ devm_regmap_field_alloc(dev, scm_regmap, *data->pll0_refclk_mux_sel);
+ if (IS_ERR(wiz->mux_sel_field[PLL0_REFCLK])) {
+ dev_err(dev, "PLL0_REFCLK_SEL reg field init failed\n");
+ return PTR_ERR(wiz->mux_sel_field[PLL0_REFCLK]);
+ }
+
+ wiz->mux_sel_field[PLL1_REFCLK] =
+ devm_regmap_field_alloc(dev, scm_regmap, *data->pll1_refclk_mux_sel);
+ if (IS_ERR(wiz->mux_sel_field[PLL1_REFCLK])) {
+ dev_err(dev, "PLL1_REFCLK_SEL reg field init failed\n");
+ return PTR_ERR(wiz->mux_sel_field[PLL1_REFCLK]);
+ }
+
+ wiz->mux_sel_field[REFCLK_DIG] = devm_regmap_field_alloc(dev, scm_regmap,
+ *data->refclk_dig_sel);
+ if (IS_ERR(wiz->mux_sel_field[REFCLK_DIG])) {
+ dev_err(dev, "REFCLK_DIG_SEL reg field init failed\n");
+ return PTR_ERR(wiz->mux_sel_field[REFCLK_DIG]);
+ }
+
+ if (data->pma_cmn_refclk1_int_mode) {
+ wiz->pma_cmn_refclk1_int_mode =
+ devm_regmap_field_alloc(dev, scm_regmap, *data->pma_cmn_refclk1_int_mode);
+ if (IS_ERR(wiz->pma_cmn_refclk1_int_mode)) {
+ dev_err(dev, "PMA_CMN_REFCLK1_INT_MODE reg field init failed\n");
+ return PTR_ERR(wiz->pma_cmn_refclk1_int_mode);
+ }
+ }
+
+ for (i = 0; i < num_lanes; i++) {
+ wiz->p_enable[i] = devm_regmap_field_alloc(dev, regmap,
+ p_enable[i]);
+ if (IS_ERR(wiz->p_enable[i])) {
+ dev_err(dev, "P%d_ENABLE reg field init failed\n", i);
+ return PTR_ERR(wiz->p_enable[i]);
+ }
+
+ wiz->p_align[i] = devm_regmap_field_alloc(dev, regmap,
+ p_align[i]);
+ if (IS_ERR(wiz->p_align[i])) {
+ dev_err(dev, "P%d_ALIGN reg field init failed\n", i);
+ return PTR_ERR(wiz->p_align[i]);
+ }
+
+ wiz->p_raw_auto_start[i] =
+ devm_regmap_field_alloc(dev, regmap, p_raw_auto_start[i]);
+ if (IS_ERR(wiz->p_raw_auto_start[i])) {
+ dev_err(dev, "P%d_RAW_AUTO_START reg field init fail\n",
+ i);
+ return PTR_ERR(wiz->p_raw_auto_start[i]);
+ }
+
+ wiz->p_standard_mode[i] =
+ devm_regmap_field_alloc(dev, regmap, p_standard_mode[i]);
+ if (IS_ERR(wiz->p_standard_mode[i])) {
+ dev_err(dev, "P%d_STANDARD_MODE reg field init fail\n",
+ 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->p0_mac_src_sel[i] = devm_regmap_field_alloc(dev, regmap, p0_mac_src_sel[i]);
+ if (IS_ERR(wiz->p0_mac_src_sel[i])) {
+ dev_err(dev, "P%d_MAC_SRC_SEL reg field init failed\n", i);
+ return PTR_ERR(wiz->p0_mac_src_sel[i]);
+ }
+
+ wiz->p0_rxfclk_sel[i] = devm_regmap_field_alloc(dev, regmap, p0_rxfclk_sel[i]);
+ if (IS_ERR(wiz->p0_rxfclk_sel[i])) {
+ dev_err(dev, "P%d_RXFCLK_SEL reg field init failed\n", i);
+ return PTR_ERR(wiz->p0_rxfclk_sel[i]);
+ }
+
+ wiz->p0_refclk_sel[i] = devm_regmap_field_alloc(dev, regmap, p0_refclk_sel[i]);
+ if (IS_ERR(wiz->p0_refclk_sel[i])) {
+ dev_err(dev, "P%d_REFCLK_SEL reg field init failed\n", i);
+ return PTR_ERR(wiz->p0_refclk_sel[i]);
+ }
+
+ wiz->p_mac_div_sel0[i] =
+ devm_regmap_field_alloc(dev, regmap, p_mac_div_sel0[i]);
+ if (IS_ERR(wiz->p_mac_div_sel0[i])) {
+ dev_err(dev, "P%d_MAC_DIV_SEL0 reg field init fail\n",
+ i);
+ return PTR_ERR(wiz->p_mac_div_sel0[i]);
+ }
+
+ wiz->p_mac_div_sel1[i] =
+ devm_regmap_field_alloc(dev, regmap, p_mac_div_sel1[i]);
+ if (IS_ERR(wiz->p_mac_div_sel1[i])) {
+ dev_err(dev, "P%d_MAC_DIV_SEL1 reg field init fail\n",
+ i);
+ return PTR_ERR(wiz->p_mac_div_sel1[i]);
+ }
+ }
+
+ wiz->typec_ln10_swap = devm_regmap_field_alloc(dev, regmap,
+ typec_ln10_swap);
+ if (IS_ERR(wiz->typec_ln10_swap)) {
+ dev_err(dev, "LN10_SWAP reg field init failed\n");
+ return PTR_ERR(wiz->typec_ln10_swap);
+ }
+
+ wiz->phy_en_refclk = devm_regmap_field_alloc(dev, regmap, phy_en_refclk);
+ if (IS_ERR(wiz->phy_en_refclk)) {
+ dev_err(dev, "PHY_EN_REFCLK reg field init failed\n");
+ return PTR_ERR(wiz->phy_en_refclk);
+ }
+
+ return 0;
+}
+
+static int wiz_phy_en_refclk_enable(struct clk_hw *hw)
+{
+ struct wiz_phy_en_refclk *wiz_phy_en_refclk = to_wiz_phy_en_refclk(hw);
+ struct regmap_field *phy_en_refclk = wiz_phy_en_refclk->phy_en_refclk;
+
+ regmap_field_write(phy_en_refclk, 1);
+
+ return 0;
+}
+
+static void wiz_phy_en_refclk_disable(struct clk_hw *hw)
+{
+ struct wiz_phy_en_refclk *wiz_phy_en_refclk = to_wiz_phy_en_refclk(hw);
+ struct regmap_field *phy_en_refclk = wiz_phy_en_refclk->phy_en_refclk;
+
+ regmap_field_write(phy_en_refclk, 0);
+}
+
+static int wiz_phy_en_refclk_is_enabled(struct clk_hw *hw)
+{
+ struct wiz_phy_en_refclk *wiz_phy_en_refclk = to_wiz_phy_en_refclk(hw);
+ struct regmap_field *phy_en_refclk = wiz_phy_en_refclk->phy_en_refclk;
+ int val;
+
+ regmap_field_read(phy_en_refclk, &val);
+
+ return !!val;
+}
+
+static const struct clk_ops wiz_phy_en_refclk_ops = {
+ .enable = wiz_phy_en_refclk_enable,
+ .disable = wiz_phy_en_refclk_disable,
+ .is_enabled = wiz_phy_en_refclk_is_enabled,
+};
+
+static int wiz_phy_en_refclk_register(struct wiz *wiz)
+{
+ struct wiz_phy_en_refclk *wiz_phy_en_refclk;
+ struct device *dev = wiz->dev;
+ struct clk_init_data *init;
+ struct clk *clk;
+ char *clk_name;
+ unsigned int sz;
+
+ wiz_phy_en_refclk = devm_kzalloc(dev, sizeof(*wiz_phy_en_refclk), GFP_KERNEL);
+ if (!wiz_phy_en_refclk)
+ return -ENOMEM;
+
+ init = &wiz_phy_en_refclk->clk_data;
+
+ init->ops = &wiz_phy_en_refclk_ops;
+ init->flags = 0;
+
+ sz = strlen(dev_name(dev)) + strlen(output_clk_names[TI_WIZ_PHY_EN_REFCLK]) + 2;
+
+ clk_name = kzalloc(sz, GFP_KERNEL);
+ if (!clk_name)
+ return -ENOMEM;
+
+ snprintf(clk_name, sz, "%s_%s", dev_name(dev), output_clk_names[TI_WIZ_PHY_EN_REFCLK]);
+ init->name = clk_name;
+
+ wiz_phy_en_refclk->phy_en_refclk = wiz->phy_en_refclk;
+ wiz_phy_en_refclk->hw.init = init;
+
+ clk = devm_clk_register(dev, &wiz_phy_en_refclk->hw);
+
+ kfree(clk_name);
+
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ wiz->output_clks[TI_WIZ_PHY_EN_REFCLK] = clk;
+
+ return 0;
+}
+
+static u8 wiz_clk_mux_get_parent(struct clk_hw *hw)
+{
+ struct wiz_clk_mux *mux = to_wiz_clk_mux(hw);
+ struct regmap_field *field = mux->field;
+ unsigned int val;
+
+ regmap_field_read(field, &val);
+ return clk_mux_val_to_index(hw, (u32 *)mux->table, 0, val);
+}
+
+static int wiz_clk_mux_set_parent(struct clk_hw *hw, u8 index)
+{
+ struct wiz_clk_mux *mux = to_wiz_clk_mux(hw);
+ struct regmap_field *field = mux->field;
+ int val;
+
+ val = mux->table[index];
+ return regmap_field_write(field, val);
+}
+
+static const struct clk_ops wiz_clk_mux_ops = {
+ .set_parent = wiz_clk_mux_set_parent,
+ .get_parent = wiz_clk_mux_get_parent,
+};
+
+static int wiz_mux_clk_register(struct wiz *wiz, struct regmap_field *field,
+ const struct wiz_clk_mux_sel *mux_sel, int clk_index)
+{
+ struct device *dev = wiz->dev;
+ struct clk_init_data *init;
+ const char **parent_names;
+ unsigned int num_parents;
+ struct wiz_clk_mux *mux;
+ char clk_name[100];
+ struct clk *clk;
+ int ret = 0, i;
+
+ mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL);
+ if (!mux)
+ return -ENOMEM;
+
+ num_parents = mux_sel->num_parents;
+
+ parent_names = kzalloc((sizeof(char *) * num_parents), GFP_KERNEL);
+ if (!parent_names)
+ return -ENOMEM;
+
+ for (i = 0; i < num_parents; i++) {
+ clk = wiz->input_clks[mux_sel->parents[i]];
+ if (IS_ERR_OR_NULL(clk)) {
+ dev_err(dev, "Failed to get parent clk for %s\n",
+ output_clk_names[clk_index]);
+ ret = -EINVAL;
+ goto err;
+ }
+ parent_names[i] = __clk_get_name(clk);
+ }
+
+ snprintf(clk_name, sizeof(clk_name), "%s_%s", dev_name(dev), output_clk_names[clk_index]);
+
+ init = &mux->clk_data;
+
+ init->ops = &wiz_clk_mux_ops;
+ init->flags = CLK_SET_RATE_NO_REPARENT;
+ init->parent_names = parent_names;
+ init->num_parents = num_parents;
+ init->name = clk_name;
+
+ mux->field = field;
+ mux->table = mux_sel->table;
+ mux->hw.init = init;
+
+ clk = devm_clk_register(dev, &mux->hw);
+ if (IS_ERR(clk)) {
+ ret = PTR_ERR(clk);
+ goto err;
+ }
+
+ wiz->output_clks[clk_index] = clk;
+
+err:
+ kfree(parent_names);
+
+ return ret;
+}
+
+static int wiz_mux_of_clk_register(struct wiz *wiz, struct device_node *node,
+ struct regmap_field *field, const u32 *table)
+{
+ struct device *dev = wiz->dev;
+ struct clk_init_data *init;
+ const char **parent_names;
+ unsigned int num_parents;
+ struct wiz_clk_mux *mux;
+ char clk_name[100];
+ struct clk *clk;
+ int ret;
+
+ mux = devm_kzalloc(dev, sizeof(*mux), GFP_KERNEL);
+ if (!mux)
+ return -ENOMEM;
+
+ num_parents = of_clk_get_parent_count(node);
+ if (num_parents < 2) {
+ dev_err(dev, "SERDES clock must have parents\n");
+ return -EINVAL;
+ }
+
+ parent_names = devm_kzalloc(dev, (sizeof(char *) * num_parents),
+ GFP_KERNEL);
+ if (!parent_names)
+ return -ENOMEM;
+
+ of_clk_parent_fill(node, parent_names, num_parents);
+
+ snprintf(clk_name, sizeof(clk_name), "%s_%s", dev_name(dev),
+ node->name);
+
+ init = &mux->clk_data;
+
+ init->ops = &wiz_clk_mux_ops;
+ init->flags = CLK_SET_RATE_NO_REPARENT;
+ init->parent_names = parent_names;
+ init->num_parents = num_parents;
+ init->name = clk_name;
+
+ mux->field = field;
+ mux->table = table;
+ mux->hw.init = init;
+
+ clk = devm_clk_register(dev, &mux->hw);
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ ret = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ if (ret)
+ dev_err(dev, "Failed to add clock provider: %s\n", clk_name);
+
+ return ret;
+}
+
+static unsigned long wiz_clk_div_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct wiz_clk_divider *div = to_wiz_clk_div(hw);
+ struct regmap_field *field = div->field;
+ int val;
+
+ regmap_field_read(field, &val);
+
+ return divider_recalc_rate(hw, parent_rate, val, div->table, 0x0, 2);
+}
+
+static long wiz_clk_div_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *prate)
+{
+ struct wiz_clk_divider *div = to_wiz_clk_div(hw);
+
+ return divider_round_rate(hw, rate, prate, div->table, 2, 0x0);
+}
+
+static int wiz_clk_div_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct wiz_clk_divider *div = to_wiz_clk_div(hw);
+ struct regmap_field *field = div->field;
+ int val;
+
+ val = divider_get_val(rate, parent_rate, div->table, 2, 0x0);
+ if (val < 0)
+ return val;
+
+ return regmap_field_write(field, val);
+}
+
+static const struct clk_ops wiz_clk_div_ops = {
+ .recalc_rate = wiz_clk_div_recalc_rate,
+ .round_rate = wiz_clk_div_round_rate,
+ .set_rate = wiz_clk_div_set_rate,
+};
+
+static int wiz_div_clk_register(struct wiz *wiz, struct device_node *node,
+ struct regmap_field *field,
+ const struct clk_div_table *table)
+{
+ struct device *dev = wiz->dev;
+ struct wiz_clk_divider *div;
+ struct clk_init_data *init;
+ const char **parent_names;
+ char clk_name[100];
+ struct clk *clk;
+ int ret;
+
+ div = devm_kzalloc(dev, sizeof(*div), GFP_KERNEL);
+ if (!div)
+ return -ENOMEM;
+
+ snprintf(clk_name, sizeof(clk_name), "%s_%s", dev_name(dev),
+ node->name);
+
+ parent_names = devm_kzalloc(dev, sizeof(char *), GFP_KERNEL);
+ if (!parent_names)
+ return -ENOMEM;
+
+ of_clk_parent_fill(node, parent_names, 1);
+
+ init = &div->clk_data;
+
+ init->ops = &wiz_clk_div_ops;
+ init->flags = 0;
+ init->parent_names = parent_names;
+ init->num_parents = 1;
+ init->name = clk_name;
+
+ div->field = field;
+ div->table = table;
+ div->hw.init = init;
+
+ clk = devm_clk_register(dev, &div->hw);
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+
+ ret = of_clk_add_provider(node, of_clk_src_simple_get, clk);
+ if (ret)
+ dev_err(dev, "Failed to add clock provider: %s\n", clk_name);
+
+ return ret;
+}
+
+static void wiz_clock_cleanup(struct wiz *wiz, struct device_node *node)
+{
+ const struct wiz_clk_mux_sel *clk_mux_sel = wiz->clk_mux_sel;
+ struct device *dev = wiz->dev;
+ struct device_node *clk_node;
+ int i;
+
+ switch (wiz->type) {
+ case AM64_WIZ_10G:
+ case J7200_WIZ_10G:
+ of_clk_del_provider(dev->of_node);
+ return;
+ default:
+ break;
+ }
+
+ for (i = 0; i < WIZ_MUX_NUM_CLOCKS; i++) {
+ clk_node = of_get_child_by_name(node, clk_mux_sel[i].node_name);
+ of_clk_del_provider(clk_node);
+ of_node_put(clk_node);
+ }
+
+ for (i = 0; i < wiz->clk_div_sel_num; i++) {
+ clk_node = of_get_child_by_name(node, clk_div_sel[i].node_name);
+ of_clk_del_provider(clk_node);
+ of_node_put(clk_node);
+ }
+
+ of_clk_del_provider(wiz->dev->of_node);
+}
+
+static int wiz_clock_register(struct wiz *wiz)
+{
+ const struct wiz_clk_mux_sel *clk_mux_sel = wiz->clk_mux_sel;
+ struct device *dev = wiz->dev;
+ struct device_node *node = dev->of_node;
+ int clk_index;
+ int ret;
+ int i;
+
+ clk_index = TI_WIZ_PLL0_REFCLK;
+ for (i = 0; i < WIZ_MUX_NUM_CLOCKS; i++, clk_index++) {
+ ret = wiz_mux_clk_register(wiz, wiz->mux_sel_field[i], &clk_mux_sel[i], clk_index);
+ if (ret) {
+ dev_err(dev, "Failed to register clk: %s\n", output_clk_names[clk_index]);
+ return ret;
+ }
+ }
+
+ ret = wiz_phy_en_refclk_register(wiz);
+ if (ret) {
+ dev_err(dev, "Failed to add phy-en-refclk\n");
+ return ret;
+ }
+
+ wiz->clk_data.clks = wiz->output_clks;
+ wiz->clk_data.clk_num = WIZ_MAX_OUTPUT_CLOCKS;
+ ret = of_clk_add_provider(node, of_clk_src_onecell_get, &wiz->clk_data);
+ if (ret)
+ dev_err(dev, "Failed to add clock provider: %s\n", node->name);
+
+ return ret;
+}
+
+static int wiz_clock_init(struct wiz *wiz, struct device_node *node)
+{
+ const struct wiz_clk_mux_sel *clk_mux_sel = wiz->clk_mux_sel;
+ struct device *dev = wiz->dev;
+ struct device_node *clk_node;
+ const char *node_name;
+ unsigned long rate;
+ struct clk *clk;
+ int ret;
+ int i;
+
+ clk = devm_clk_get(dev, "core_ref_clk");
+ if (IS_ERR(clk)) {
+ dev_err(dev, "core_ref_clk clock not found\n");
+ ret = PTR_ERR(clk);
+ return ret;
+ }
+ wiz->input_clks[WIZ_CORE_REFCLK] = clk;
+
+ rate = clk_get_rate(clk);
+ if (rate >= 100000000)
+ regmap_field_write(wiz->pma_cmn_refclk_int_mode, 0x1);
+ else
+ regmap_field_write(wiz->pma_cmn_refclk_int_mode, 0x3);
+
+ switch (wiz->type) {
+ case AM64_WIZ_10G:
+ case J7200_WIZ_10G:
+ switch (rate) {
+ case REF_CLK_100MHZ:
+ regmap_field_write(wiz->div_sel_field[CMN_REFCLK_DIG_DIV], 0x2);
+ break;
+ case REF_CLK_156_25MHZ:
+ regmap_field_write(wiz->div_sel_field[CMN_REFCLK_DIG_DIV], 0x3);
+ break;
+ default:
+ regmap_field_write(wiz->div_sel_field[CMN_REFCLK_DIG_DIV], 0);
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ if (wiz->data->pma_cmn_refclk1_int_mode) {
+ clk = devm_clk_get(dev, "core_ref1_clk");
+ if (IS_ERR(clk)) {
+ dev_err(dev, "core_ref1_clk clock not found\n");
+ ret = PTR_ERR(clk);
+ return ret;
+ }
+ wiz->input_clks[WIZ_CORE_REFCLK1] = clk;
+
+ rate = clk_get_rate(clk);
+ if (rate >= 100000000)
+ regmap_field_write(wiz->pma_cmn_refclk1_int_mode, 0x1);
+ else
+ regmap_field_write(wiz->pma_cmn_refclk1_int_mode, 0x3);
+ }
+
+ clk = devm_clk_get(dev, "ext_ref_clk");
+ if (IS_ERR(clk)) {
+ dev_err(dev, "ext_ref_clk clock not found\n");
+ ret = PTR_ERR(clk);
+ return ret;
+ }
+ wiz->input_clks[WIZ_EXT_REFCLK] = clk;
+
+ rate = clk_get_rate(clk);
+ if (rate >= 100000000)
+ regmap_field_write(wiz->pma_cmn_refclk_mode, 0x0);
+ else
+ regmap_field_write(wiz->pma_cmn_refclk_mode, 0x2);
+
+ switch (wiz->type) {
+ case AM64_WIZ_10G:
+ case J7200_WIZ_10G:
+ ret = wiz_clock_register(wiz);
+ if (ret)
+ dev_err(dev, "Failed to register wiz clocks\n");
+ return ret;
+ default:
+ break;
+ }
+
+ for (i = 0; i < WIZ_MUX_NUM_CLOCKS; i++) {
+ node_name = clk_mux_sel[i].node_name;
+ clk_node = of_get_child_by_name(node, node_name);
+ if (!clk_node) {
+ dev_err(dev, "Unable to get %s node\n", node_name);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = wiz_mux_of_clk_register(wiz, clk_node, wiz->mux_sel_field[i],
+ clk_mux_sel[i].table);
+ if (ret) {
+ dev_err(dev, "Failed to register %s clock\n",
+ node_name);
+ of_node_put(clk_node);
+ goto err;
+ }
+
+ of_node_put(clk_node);
+ }
+
+ for (i = 0; i < wiz->clk_div_sel_num; i++) {
+ node_name = clk_div_sel[i].node_name;
+ clk_node = of_get_child_by_name(node, node_name);
+ if (!clk_node) {
+ dev_err(dev, "Unable to get %s node\n", node_name);
+ ret = -EINVAL;
+ goto err;
+ }
+
+ ret = wiz_div_clk_register(wiz, clk_node, wiz->div_sel_field[i],
+ clk_div_sel[i].table);
+ if (ret) {
+ dev_err(dev, "Failed to register %s clock\n",
+ node_name);
+ of_node_put(clk_node);
+ goto err;
+ }
+
+ of_node_put(clk_node);
+ }
+
+ return 0;
+err:
+ wiz_clock_cleanup(wiz, node);
+
+ return ret;
+}
+
+static int wiz_phy_reset_assert(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ struct device *dev = rcdev->dev;
+ struct wiz *wiz = dev_get_drvdata(dev);
+ int ret = 0;
+
+ if (id == 0) {
+ ret = regmap_field_write(wiz->phy_reset_n, false);
+ return ret;
+ }
+
+ ret = regmap_field_write(wiz->p_enable[id - 1], P_ENABLE_DISABLE);
+ return ret;
+}
+
+static int wiz_phy_fullrt_div(struct wiz *wiz, int lane)
+{
+ switch (wiz->type) {
+ case AM64_WIZ_10G:
+ if (wiz->lane_phy_type[lane] == PHY_TYPE_PCIE)
+ return regmap_field_write(wiz->p0_fullrt_div[lane], 0x1);
+ break;
+ case J721E_WIZ_10G:
+ case J7200_WIZ_10G:
+ if (wiz->lane_phy_type[lane] == PHY_TYPE_SGMII)
+ return regmap_field_write(wiz->p0_fullrt_div[lane], 0x2);
+ break;
+ default:
+ return 0;
+ }
+ return 0;
+}
+
+static int wiz_phy_reset_deassert(struct reset_controller_dev *rcdev,
+ unsigned long id)
+{
+ struct device *dev = rcdev->dev;
+ struct wiz *wiz = dev_get_drvdata(dev);
+ int ret;
+
+ /* if typec-dir gpio was specified, set LN10 SWAP bit based on that */
+ if (id == 0 && wiz->gpio_typec_dir) {
+ if (wiz->typec_dir_delay)
+ msleep_interruptible(wiz->typec_dir_delay);
+
+ if (gpiod_get_value_cansleep(wiz->gpio_typec_dir))
+ regmap_field_write(wiz->typec_ln10_swap, 1);
+ else
+ regmap_field_write(wiz->typec_ln10_swap, 0);
+ }
+
+ if (id == 0) {
+ ret = regmap_field_write(wiz->phy_reset_n, true);
+ 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
+ ret = regmap_field_write(wiz->p_enable[id - 1], P_ENABLE_FORCE);
+
+ return ret;
+}
+
+static const struct reset_control_ops wiz_phy_reset_ops = {
+ .assert = wiz_phy_reset_assert,
+ .deassert = wiz_phy_reset_deassert,
+};
+
+static const struct regmap_config wiz_regmap_config = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ .fast_io = true,
+};
+
+static struct wiz_data j721e_16g_data = {
+ .type = J721E_WIZ_16G,
+ .pll0_refclk_mux_sel = &pll0_refclk_mux_sel,
+ .pll1_refclk_mux_sel = &pll1_refclk_mux_sel,
+ .refclk_dig_sel = &refclk_dig_sel_16g,
+ .pma_cmn_refclk1_dig_div = &pma_cmn_refclk1_dig_div,
+ .clk_mux_sel = clk_mux_sel_16g,
+ .clk_div_sel_num = WIZ_DIV_NUM_CLOCKS_16G,
+};
+
+static struct wiz_data j721e_10g_data = {
+ .type = J721E_WIZ_10G,
+ .pll0_refclk_mux_sel = &pll0_refclk_mux_sel,
+ .pll1_refclk_mux_sel = &pll1_refclk_mux_sel,
+ .refclk_dig_sel = &refclk_dig_sel_10g,
+ .clk_mux_sel = clk_mux_sel_10g,
+ .clk_div_sel_num = WIZ_DIV_NUM_CLOCKS_10G,
+};
+
+static struct wiz_data am64_10g_data = {
+ .type = AM64_WIZ_10G,
+ .pll0_refclk_mux_sel = &pll0_refclk_mux_sel,
+ .pll1_refclk_mux_sel = &pll1_refclk_mux_sel,
+ .refclk_dig_sel = &refclk_dig_sel_10g,
+ .clk_mux_sel = clk_mux_sel_10g,
+ .clk_div_sel_num = WIZ_DIV_NUM_CLOCKS_10G,
+};
+
+static struct wiz_data j7200_pg2_10g_data = {
+ .type = J7200_WIZ_10G,
+ .pll0_refclk_mux_sel = &sup_pll0_refclk_mux_sel,
+ .pll1_refclk_mux_sel = &sup_pll1_refclk_mux_sel,
+ .refclk_dig_sel = &sup_refclk_dig_sel_10g,
+ .pma_cmn_refclk1_int_mode = &sup_pma_cmn_refclk1_int_mode,
+ .clk_mux_sel = clk_mux_sel_10g_2_refclk,
+ .clk_div_sel_num = WIZ_DIV_NUM_CLOCKS_10G,
+};
+
+static const struct of_device_id wiz_id_table[] = {
+ {
+ .compatible = "ti,j721e-wiz-16g", .data = &j721e_16g_data,
+ },
+ {
+ .compatible = "ti,j721e-wiz-10g", .data = &j721e_10g_data,
+ },
+ {
+ .compatible = "ti,am64-wiz-10g", .data = &am64_10g_data,
+ },
+ {
+ .compatible = "ti,j7200-wiz-10g", .data = &j7200_pg2_10g_data,
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, wiz_id_table);
+
+static int wiz_get_lane_phy_types(struct device *dev, struct wiz *wiz)
+{
+ struct device_node *serdes, *subnode;
+
+ serdes = of_get_child_by_name(dev->of_node, "serdes");
+ if (!serdes) {
+ dev_err(dev, "%s: Getting \"serdes\"-node failed\n", __func__);
+ return -EINVAL;
+ }
+
+ for_each_child_of_node(serdes, subnode) {
+ u32 reg, num_lanes = 1, phy_type = PHY_NONE;
+ int ret, i;
+
+ if (!(of_node_name_eq(subnode, "phy") ||
+ of_node_name_eq(subnode, "link")))
+ continue;
+
+ ret = of_property_read_u32(subnode, "reg", &reg);
+ if (ret) {
+ of_node_put(subnode);
+ dev_err(dev,
+ "%s: Reading \"reg\" from \"%s\" failed: %d\n",
+ __func__, subnode->name, ret);
+ return ret;
+ }
+ of_property_read_u32(subnode, "cdns,num-lanes", &num_lanes);
+ of_property_read_u32(subnode, "cdns,phy-type", &phy_type);
+
+ dev_dbg(dev, "%s: Lanes %u-%u have phy-type %u\n", __func__,
+ reg, reg + num_lanes - 1, phy_type);
+
+ for (i = reg; i < reg + num_lanes; i++)
+ wiz->lane_phy_type[i] = phy_type;
+ }
+
+ return 0;
+}
+
+static int wiz_probe(struct platform_device *pdev)
+{
+ struct reset_controller_dev *phy_reset_dev;
+ struct device *dev = &pdev->dev;
+ struct device_node *node = dev->of_node;
+ struct platform_device *serdes_pdev;
+ bool already_configured = false;
+ struct device_node *child_node;
+ struct regmap *regmap;
+ struct resource res;
+ void __iomem *base;
+ struct wiz *wiz;
+ int ret, val, i;
+ u32 num_lanes;
+ const struct wiz_data *data;
+
+ wiz = devm_kzalloc(dev, sizeof(*wiz), GFP_KERNEL);
+ if (!wiz)
+ return -ENOMEM;
+
+ data = of_device_get_match_data(dev);
+ if (!data) {
+ dev_err(dev, "NULL device data\n");
+ return -EINVAL;
+ }
+
+ wiz->data = data;
+ wiz->type = data->type;
+
+ child_node = of_get_child_by_name(node, "serdes");
+ if (!child_node) {
+ dev_err(dev, "Failed to get SERDES child DT node\n");
+ return -ENODEV;
+ }
+
+ ret = of_address_to_resource(child_node, 0, &res);
+ if (ret) {
+ dev_err(dev, "Failed to get memory resource\n");
+ goto err_addr_to_resource;
+ }
+
+ base = devm_ioremap(dev, res.start, resource_size(&res));
+ if (!base) {
+ ret = -ENOMEM;
+ goto err_addr_to_resource;
+ }
+
+ regmap = devm_regmap_init_mmio(dev, base, &wiz_regmap_config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, "Failed to initialize regmap\n");
+ ret = PTR_ERR(regmap);
+ goto err_addr_to_resource;
+ }
+
+ wiz->scm_regmap = syscon_regmap_lookup_by_phandle(node, "ti,scm");
+ if (IS_ERR(wiz->scm_regmap)) {
+ if (wiz->type == J7200_WIZ_10G) {
+ dev_err(dev, "Couldn't get ti,scm regmap\n");
+ ret = -ENODEV;
+ goto err_addr_to_resource;
+ }
+
+ wiz->scm_regmap = NULL;
+ }
+
+ ret = of_property_read_u32(node, "num-lanes", &num_lanes);
+ if (ret) {
+ dev_err(dev, "Failed to read num-lanes property\n");
+ goto err_addr_to_resource;
+ }
+
+ if (num_lanes > WIZ_MAX_LANES) {
+ dev_err(dev, "Cannot support %d lanes\n", num_lanes);
+ ret = -ENODEV;
+ goto err_addr_to_resource;
+ }
+
+ wiz->gpio_typec_dir = devm_gpiod_get_optional(dev, "typec-dir",
+ GPIOD_IN);
+ if (IS_ERR(wiz->gpio_typec_dir)) {
+ ret = PTR_ERR(wiz->gpio_typec_dir);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to request typec-dir gpio: %d\n",
+ ret);
+ goto err_addr_to_resource;
+ }
+
+ if (wiz->gpio_typec_dir) {
+ ret = of_property_read_u32(node, "typec-dir-debounce-ms",
+ &wiz->typec_dir_delay);
+ if (ret && ret != -EINVAL) {
+ dev_err(dev, "Invalid typec-dir-debounce property\n");
+ goto err_addr_to_resource;
+ }
+
+ /* use min. debounce from Type-C spec if not provided in DT */
+ if (ret == -EINVAL)
+ wiz->typec_dir_delay = WIZ_TYPEC_DIR_DEBOUNCE_MIN;
+
+ if (wiz->typec_dir_delay < WIZ_TYPEC_DIR_DEBOUNCE_MIN ||
+ wiz->typec_dir_delay > WIZ_TYPEC_DIR_DEBOUNCE_MAX) {
+ ret = -EINVAL;
+ dev_err(dev, "Invalid typec-dir-debounce property\n");
+ goto err_addr_to_resource;
+ }
+ }
+
+ ret = wiz_get_lane_phy_types(dev, wiz);
+ if (ret)
+ goto err_addr_to_resource;
+
+ wiz->dev = dev;
+ wiz->regmap = regmap;
+ wiz->num_lanes = num_lanes;
+ wiz->clk_mux_sel = data->clk_mux_sel;
+ wiz->clk_div_sel = clk_div_sel;
+ wiz->clk_div_sel_num = data->clk_div_sel_num;
+
+ platform_set_drvdata(pdev, wiz);
+
+ ret = wiz_regfield_init(wiz);
+ if (ret) {
+ dev_err(dev, "Failed to initialize regfields\n");
+ goto err_addr_to_resource;
+ }
+
+ /* Enable supplemental Control override if available */
+ if (wiz->scm_regmap)
+ regmap_field_write(wiz->sup_legacy_clk_override, 1);
+
+ phy_reset_dev = &wiz->wiz_phy_reset_dev;
+ phy_reset_dev->dev = dev;
+ phy_reset_dev->ops = &wiz_phy_reset_ops,
+ phy_reset_dev->owner = THIS_MODULE,
+ phy_reset_dev->of_node = node;
+ /* Reset for each of the lane and one for the entire SERDES */
+ phy_reset_dev->nr_resets = num_lanes + 1;
+
+ ret = devm_reset_controller_register(dev, phy_reset_dev);
+ if (ret < 0) {
+ dev_warn(dev, "Failed to register reset controller\n");
+ goto err_addr_to_resource;
+ }
+
+ pm_runtime_enable(dev);
+ ret = pm_runtime_get_sync(dev);
+ if (ret < 0) {
+ dev_err(dev, "pm_runtime_get_sync failed\n");
+ goto err_get_sync;
+ }
+
+ ret = wiz_clock_init(wiz, node);
+ if (ret < 0) {
+ dev_warn(dev, "Failed to initialize clocks\n");
+ goto err_get_sync;
+ }
+
+ for (i = 0; i < wiz->num_lanes; i++) {
+ regmap_field_read(wiz->p_enable[i], &val);
+ if (val & (P_ENABLE | P_ENABLE_FORCE)) {
+ already_configured = true;
+ break;
+ }
+ }
+
+ if (!already_configured) {
+ ret = wiz_init(wiz);
+ if (ret) {
+ dev_err(dev, "WIZ initialization failed\n");
+ goto err_wiz_init;
+ }
+ }
+
+ serdes_pdev = of_platform_device_create(child_node, NULL, dev);
+ if (!serdes_pdev) {
+ dev_WARN(dev, "Unable to create SERDES platform device\n");
+ ret = -ENOMEM;
+ goto err_wiz_init;
+ }
+ wiz->serdes_pdev = serdes_pdev;
+
+ of_node_put(child_node);
+ return 0;
+
+err_wiz_init:
+ wiz_clock_cleanup(wiz, node);
+
+err_get_sync:
+ pm_runtime_put(dev);
+ pm_runtime_disable(dev);
+
+err_addr_to_resource:
+ of_node_put(child_node);
+
+ return ret;
+}
+
+static int wiz_remove(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *node = dev->of_node;
+ struct platform_device *serdes_pdev;
+ struct wiz *wiz;
+
+ wiz = dev_get_drvdata(dev);
+ serdes_pdev = wiz->serdes_pdev;
+
+ of_platform_device_destroy(&serdes_pdev->dev, NULL);
+ wiz_clock_cleanup(wiz, node);
+ pm_runtime_put(dev);
+ pm_runtime_disable(dev);
+
+ return 0;
+}
+
+static struct platform_driver wiz_driver = {
+ .probe = wiz_probe,
+ .remove = wiz_remove,
+ .driver = {
+ .name = "wiz",
+ .of_match_table = wiz_id_table,
+ },
+};
+module_platform_driver(wiz_driver);
+
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_DESCRIPTION("TI J721E WIZ driver");
+MODULE_LICENSE("GPL v2");