clk: starfive: Add StarFive JH7110 PLL clock driver

Add driver for the StarFive JH7110 PLL clock controller.

Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>

diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
index b0c7744..abe1de1 100644 (file)
--- a/drivers/clk/starfive/Kconfig
+++ b/drivers/clk/starfive/Kconfig
@@ -21,6 +21,14 @@ config CLK_STARFIVE_JH7100_AUDIO
          Say Y or M here to support the audio clocks on the StarFive JH7100
          SoC.
 
+config CLK_STARFIVE_JH7110_PLL
+       bool "StarFive JH7110 PLL clock support"
+       depends on ARCH_STARFIVE || COMPILE_TEST
+       default ARCH_STARFIVE
+       help
+         Say yes here to support the PLL clock controller on the
+         StarFive JH7110 SoC.
+
 config CLK_STARFIVE_JH7110_SYS
        bool "StarFive JH7110 system clock support"
        depends on ARCH_STARFIVE || COMPILE_TEST

diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
index 841377e..199ac0f 100644 (file)
--- a/drivers/clk/starfive/Makefile
+++ b/drivers/clk/starfive/Makefile
@@ -4,6 +4,7 @@ obj-$(CONFIG_CLK_STARFIVE_JH71X0)       += clk-starfive-jh71x0.o
 obj-$(CONFIG_CLK_STARFIVE_JH7100)      += clk-starfive-jh7100.o
 obj-$(CONFIG_CLK_STARFIVE_JH7100_AUDIO)        += clk-starfive-jh7100-audio.o
 
+obj-$(CONFIG_CLK_STARFIVE_JH7110_PLL)  += clk-starfive-jh7110-pll.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_SYS)  += clk-starfive-jh7110-sys.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_AON)  += clk-starfive-jh7110-aon.o
 obj-$(CONFIG_CLK_STARFIVE_JH7110_STG)  += clk-starfive-jh7110-stg.o

diff --git a/drivers/clk/starfive/clk-starfive-jh7110-pll.c b/drivers/clk/starfive/clk-starfive-jh7110-pll.c
new file mode 100644 (file)
index 0000000..b947861
--- /dev/null
+++ b/drivers/clk/starfive/clk-starfive-jh7110-pll.c
@@ -0,0 +1,420 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * StarFive JH7110 PLL Clock Generator Driver
+ *
+ * Copyright (C) 2022 StarFive Technology Co., Ltd.
+ * Copyright (C) 2022 Xingyu Wu <xingyu.wu@starfivetech.com>
+ *
+ * This driver is about to register JH7110 PLL clock generator and support ops.
+ * The JH7110 have three PLL clock, PLL0, PLL1 and PLL2.
+ * Each PLL clocks work in integer mode or fraction mode by some dividers,
+ * and the configuration registers and dividers are set in several syscon registers.
+ * The formula for calculating frequency is:
+ * Fvco = Fref * (NI + NF) / M / Q1
+ * Fref: OSC source clock rate
+ * NI: integer frequency dividing ratio of feedback divider, set by fbdiv[11:0].
+ * NF: fractional frequency dividing ratio, set by frac[23:0]. NF = frac[23:0] / 2^24 = 0 ~ 0.999.
+ * M: frequency dividing ratio of pre-divider, set by prediv[5:0].
+ * Q1: frequency dividing ratio of post divider, set by postdiv1[1:0], Q1= 1,2,4,8.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/debugfs.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/clock/starfive,jh7110-crg.h>
+
+#include "clk-starfive-jh7110-pll.h"
+
+static struct jh7110_clk_pll_data *jh7110_pll_data_from(struct clk_hw *hw)
+{
+       return container_of(hw, struct jh7110_clk_pll_data, hw);
+}
+
+static struct jh7110_clk_pll_priv *jh7110_pll_priv_from(struct jh7110_clk_pll_data *data)
+{
+       return container_of(data, struct jh7110_clk_pll_priv, data[data->idx]);
+}
+
+/* Read register value from syscon and calculate PLL(x) frequency */
+static unsigned long jh7110_pll_get_freq(struct jh7110_clk_pll_data *data,
+                                        unsigned long parent_rate)
+{
+       struct jh7110_clk_pll_priv *priv = jh7110_pll_priv_from(data);
+       struct jh7110_pll_syscon_offset *offset = &data->offset;
+       struct jh7110_pll_syscon_mask *mask = &data->mask;
+       struct jh7110_pll_syscon_shift *shift = &data->shift;
+       unsigned long freq = 0;
+       unsigned long frac_cal;
+       u32 dacpd;
+       u32 dsmpd;
+       u32 fbdiv;
+       u32 prediv;
+       u32 postdiv1;
+       u32 frac;
+       u32 reg_value;
+
+       if (regmap_read(priv->syscon_regmap, offset->dacpd, &reg_value))
+               goto read_register_error;
+       dacpd = (reg_value & mask->dacpd) >> shift->dacpd;
+
+       if (regmap_read(priv->syscon_regmap, offset->dsmpd, &reg_value))
+               goto read_register_error;
+       dsmpd = (reg_value & mask->dsmpd) >> shift->dsmpd;
+
+       if (regmap_read(priv->syscon_regmap, offset->fbdiv, &reg_value))
+               goto read_register_error;
+       fbdiv = (reg_value & mask->fbdiv) >> shift->fbdiv;
+       /* fbdiv value should be 8 to 4095 */
+       if (fbdiv < 8)
+               goto read_register_error;
+
+       if (regmap_read(priv->syscon_regmap, offset->prediv, &reg_value))
+               goto read_register_error;
+       prediv = (reg_value & mask->prediv) >> shift->prediv;
+
+       if (regmap_read(priv->syscon_regmap, offset->postdiv1, &reg_value))
+               goto read_register_error;
+       /* postdiv1 = 2 ^ reg_value */
+       postdiv1 = 1 << ((reg_value & mask->postdiv1) >> shift->postdiv1);
+
+       if (regmap_read(priv->syscon_regmap, offset->frac, &reg_value))
+               goto read_register_error;
+       frac = (reg_value & mask->frac) >> shift->frac;
+
+       /*
+        * Integer Mode (Both 1) or Fraction Mode (Both 0).
+        * And the decimal places are counted by expanding them by
+        * a factor of STARFIVE_PLL_FRAC_PATR_SIZE.
+        */
+       if (dacpd == 1 && dsmpd == 1)
+               frac_cal = 0;
+       else if (dacpd == 0 && dsmpd == 0)
+               frac_cal = (unsigned long)frac * STARFIVE_PLL_FRAC_PATR_SIZE / (1 << 24);
+       else
+               goto read_register_error;
+
+       if (frac_cal)
+               /* fraction mode: Fvco = Fref * (NI + NF) / M / Q1 */
+               freq = parent_rate / STARFIVE_PLL_FRAC_PATR_SIZE *
+                      (fbdiv * STARFIVE_PLL_FRAC_PATR_SIZE + frac_cal) / prediv / postdiv1;
+       else
+               /* integer mode: Fvco = Fref * NI / M / Q1 */
+               freq = parent_rate * fbdiv / prediv / postdiv1;
+
+read_register_error:
+       return freq;
+}
+
+/* Select the appropriate frequency from the already configured registers value */
+static int jh7110_pll_select_freq_syscon(struct jh7110_clk_pll_data *data,
+                                        unsigned long target_rate)
+{
+       struct jh7110_clk_pll_priv *priv = jh7110_pll_priv_from(data);
+       const struct starfive_pll_syscon_value *syscon_value;
+       unsigned int id;
+       unsigned int pll_arry_size;
+
+       if (data->idx == JH7110_CLK_PLL0_OUT)
+               pll_arry_size = ARRAY_SIZE(jh7110_pll0_syscon_freq);
+       else if (data->idx == JH7110_CLK_PLL1_OUT)
+               pll_arry_size = ARRAY_SIZE(jh7110_pll1_syscon_freq);
+       else
+               pll_arry_size = ARRAY_SIZE(jh7110_pll2_syscon_freq);
+
+       for (id = 0; id < pll_arry_size; id++) {
+               if (data->idx == JH7110_CLK_PLL0_OUT)
+                       syscon_value = &jh7110_pll0_syscon_freq[id];
+               else if (data->idx == JH7110_CLK_PLL1_OUT)
+                       syscon_value = &jh7110_pll1_syscon_freq[id];
+               else
+                       syscon_value = &jh7110_pll2_syscon_freq[id];
+
+               if (target_rate == syscon_value->freq)
+                       goto select_succeed;
+       }
+
+       dev_err(priv->dev, "pll%d frequency:%ld do not match, please check it.\n",
+               data->idx, target_rate);
+       return -EINVAL;
+
+select_succeed:
+       data->freq_select_idx = id;
+       return 0;
+}
+
+static int jh7110_pll_set_freq_syscon(struct jh7110_clk_pll_data *data)
+{
+       struct jh7110_clk_pll_priv *priv = jh7110_pll_priv_from(data);
+       struct jh7110_pll_syscon_offset *offset = &data->offset;
+       struct jh7110_pll_syscon_mask *mask = &data->mask;
+       struct jh7110_pll_syscon_shift *shift = &data->shift;
+       unsigned int freq_idx = data->freq_select_idx;
+       const struct starfive_pll_syscon_value *syscon_value;
+       int ret;
+
+       if (data->idx == JH7110_CLK_PLL0_OUT)
+               syscon_value = &jh7110_pll0_syscon_freq[freq_idx];
+       else if (data->idx == JH7110_CLK_PLL1_OUT)
+               syscon_value = &jh7110_pll1_syscon_freq[freq_idx];
+       else
+               syscon_value = &jh7110_pll2_syscon_freq[freq_idx];
+
+       ret = regmap_update_bits(priv->syscon_regmap, offset->dacpd, mask->dacpd,
+                                (syscon_value->dacpd << shift->dacpd));
+       if (ret)
+               goto set_failed;
+
+       ret = regmap_update_bits(priv->syscon_regmap, offset->dsmpd, mask->dsmpd,
+                                (syscon_value->dsmpd << shift->dsmpd));
+       if (ret)
+               goto set_failed;
+
+       ret = regmap_update_bits(priv->syscon_regmap, offset->prediv, mask->prediv,
+                                (syscon_value->prediv << shift->prediv));
+       if (ret)
+               goto set_failed;
+
+       ret = regmap_update_bits(priv->syscon_regmap, offset->fbdiv, mask->fbdiv,
+                                (syscon_value->fbdiv << shift->fbdiv));
+       if (ret)
+               goto set_failed;
+
+       ret = regmap_update_bits(priv->syscon_regmap, offset->postdiv1, mask->postdiv1,
+                                ((syscon_value->postdiv1 >> 1) << shift->postdiv1));
+       if (ret)
+               goto set_failed;
+
+       /* frac: Integer Mode (Both 1) or Fraction Mode (Both 0) */
+       if (syscon_value->dacpd == 0 && syscon_value->dsmpd == 0)
+               ret = regmap_update_bits(priv->syscon_regmap, offset->frac, mask->frac,
+                                        (syscon_value->frac << shift->frac));
+       else if (syscon_value->dacpd != syscon_value->dsmpd)
+               ret = -EINVAL;
+
+set_failed:
+       return ret;
+}
+
+static unsigned long jh7110_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate)
+{
+       struct jh7110_clk_pll_data *data = jh7110_pll_data_from(hw);
+
+       return jh7110_pll_get_freq(data, parent_rate);
+}
+
+static int jh7110_pll_determine_rate(struct clk_hw *hw, struct clk_rate_request *req)
+{
+       struct jh7110_clk_pll_data *data = jh7110_pll_data_from(hw);
+       int ret = jh7110_pll_select_freq_syscon(data, req->rate);
+
+       if (ret)
+               return ret;
+
+       if (data->idx == JH7110_CLK_PLL0_OUT)
+               req->rate = jh7110_pll0_syscon_freq[data->freq_select_idx].freq;
+       else if (data->idx == JH7110_CLK_PLL1_OUT)
+               req->rate = jh7110_pll1_syscon_freq[data->freq_select_idx].freq;
+       else
+               req->rate = jh7110_pll2_syscon_freq[data->freq_select_idx].freq;
+
+       return 0;
+}
+
+static int jh7110_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+                              unsigned long parent_rate)
+{
+       struct jh7110_clk_pll_data *data = jh7110_pll_data_from(hw);
+
+       return jh7110_pll_set_freq_syscon(data);
+}
+
+#ifdef CONFIG_DEBUG_FS
+static void jh7110_pll_debug_init(struct clk_hw *hw, struct dentry *dentry)
+{
+       static const struct debugfs_reg32 jh7110_clk_pll_reg = {
+               .name = "CTRL",
+               .offset = 0,
+       };
+       struct jh7110_clk_pll_data *data = jh7110_pll_data_from(hw);
+       struct jh7110_clk_pll_priv *priv = jh7110_pll_priv_from(data);
+       struct debugfs_regset32 *regset;
+
+       regset = devm_kzalloc(priv->dev, sizeof(*regset), GFP_KERNEL);
+       if (!regset)
+               return;
+
+       regset->regs = &jh7110_clk_pll_reg;
+       regset->nregs = 1;
+
+       debugfs_create_regset32("registers", 0400, dentry, regset);
+}
+#else
+#define jh7110_pll_debug_init NULL
+#endif
+
+static const struct clk_ops jh7110_pll_ops = {
+       .recalc_rate = jh7110_pll_recalc_rate,
+       .determine_rate = jh7110_pll_determine_rate,
+       .set_rate = jh7110_pll_set_rate,
+       .debug_init = jh7110_pll_debug_init,
+};
+
+/* get offset, mask and shift of PLL(x) syscon */
+static int jh7110_pll_data_get(struct jh7110_clk_pll_data *data, int index)
+{
+       struct jh7110_pll_syscon_offset *offset = &data->offset;
+       struct jh7110_pll_syscon_mask *mask = &data->mask;
+       struct jh7110_pll_syscon_shift *shift = &data->shift;
+
+       if (index == JH7110_CLK_PLL0_OUT) {
+               offset->dacpd = STARFIVE_JH7110_PLL0_DACPD_OFFSET;
+               offset->dsmpd = STARFIVE_JH7110_PLL0_DSMPD_OFFSET;
+               offset->fbdiv = STARFIVE_JH7110_PLL0_FBDIV_OFFSET;
+               offset->frac = STARFIVE_JH7110_PLL0_FRAC_OFFSET;
+               offset->prediv = STARFIVE_JH7110_PLL0_PREDIV_OFFSET;
+               offset->postdiv1 = STARFIVE_JH7110_PLL0_POSTDIV1_OFFSET;
+
+               mask->dacpd = STARFIVE_JH7110_PLL0_DACPD_MASK;
+               mask->dsmpd = STARFIVE_JH7110_PLL0_DSMPD_MASK;
+               mask->fbdiv = STARFIVE_JH7110_PLL0_FBDIV_MASK;
+               mask->frac = STARFIVE_JH7110_PLL0_FRAC_MASK;
+               mask->prediv = STARFIVE_JH7110_PLL0_PREDIV_MASK;
+               mask->postdiv1 = STARFIVE_JH7110_PLL0_POSTDIV1_MASK;
+
+               shift->dacpd = STARFIVE_JH7110_PLL0_DACPD_SHIFT;
+               shift->dsmpd = STARFIVE_JH7110_PLL0_DSMPD_SHIFT;
+               shift->fbdiv = STARFIVE_JH7110_PLL0_FBDIV_SHIFT;
+               shift->frac = STARFIVE_JH7110_PLL0_FRAC_SHIFT;
+               shift->prediv = STARFIVE_JH7110_PLL0_PREDIV_SHIFT;
+               shift->postdiv1 = STARFIVE_JH7110_PLL0_POSTDIV1_SHIFT;
+
+       } else if (index == JH7110_CLK_PLL1_OUT) {
+               offset->dacpd = STARFIVE_JH7110_PLL1_DACPD_OFFSET;
+               offset->dsmpd = STARFIVE_JH7110_PLL1_DSMPD_OFFSET;
+               offset->fbdiv = STARFIVE_JH7110_PLL1_FBDIV_OFFSET;
+               offset->frac = STARFIVE_JH7110_PLL1_FRAC_OFFSET;
+               offset->prediv = STARFIVE_JH7110_PLL1_PREDIV_OFFSET;
+               offset->postdiv1 = STARFIVE_JH7110_PLL1_POSTDIV1_OFFSET;
+
+               mask->dacpd = STARFIVE_JH7110_PLL1_DACPD_MASK;
+               mask->dsmpd = STARFIVE_JH7110_PLL1_DSMPD_MASK;
+               mask->fbdiv = STARFIVE_JH7110_PLL1_FBDIV_MASK;
+               mask->frac = STARFIVE_JH7110_PLL1_FRAC_MASK;
+               mask->prediv = STARFIVE_JH7110_PLL1_PREDIV_MASK;
+               mask->postdiv1 = STARFIVE_JH7110_PLL1_POSTDIV1_MASK;
+
+               shift->dacpd = STARFIVE_JH7110_PLL1_DACPD_SHIFT;
+               shift->dsmpd = STARFIVE_JH7110_PLL1_DSMPD_SHIFT;
+               shift->fbdiv = STARFIVE_JH7110_PLL1_FBDIV_SHIFT;
+               shift->frac = STARFIVE_JH7110_PLL1_FRAC_SHIFT;
+               shift->prediv = STARFIVE_JH7110_PLL1_PREDIV_SHIFT;
+               shift->postdiv1 = STARFIVE_JH7110_PLL1_POSTDIV1_SHIFT;
+
+       } else if (index == JH7110_CLK_PLL2_OUT) {
+               offset->dacpd = STARFIVE_JH7110_PLL2_DACPD_OFFSET;
+               offset->dsmpd = STARFIVE_JH7110_PLL2_DSMPD_OFFSET;
+               offset->fbdiv = STARFIVE_JH7110_PLL2_FBDIV_OFFSET;
+               offset->frac = STARFIVE_JH7110_PLL2_FRAC_OFFSET;
+               offset->prediv = STARFIVE_JH7110_PLL2_PREDIV_OFFSET;
+               offset->postdiv1 = STARFIVE_JH7110_PLL2_POSTDIV1_OFFSET;
+
+               mask->dacpd = STARFIVE_JH7110_PLL2_DACPD_MASK;
+               mask->dsmpd = STARFIVE_JH7110_PLL2_DSMPD_MASK;
+               mask->fbdiv = STARFIVE_JH7110_PLL2_FBDIV_MASK;
+               mask->frac = STARFIVE_JH7110_PLL2_FRAC_MASK;
+               mask->prediv = STARFIVE_JH7110_PLL2_PREDIV_MASK;
+               mask->postdiv1 = STARFIVE_JH7110_PLL2_POSTDIV1_MASK;
+
+               shift->dacpd = STARFIVE_JH7110_PLL2_DACPD_SHIFT;
+               shift->dsmpd = STARFIVE_JH7110_PLL2_DSMPD_SHIFT;
+               shift->fbdiv = STARFIVE_JH7110_PLL2_FBDIV_SHIFT;
+               shift->frac = STARFIVE_JH7110_PLL2_FRAC_SHIFT;
+               shift->prediv = STARFIVE_JH7110_PLL2_PREDIV_SHIFT;
+               shift->postdiv1 = STARFIVE_JH7110_PLL2_POSTDIV1_SHIFT;
+
+       } else {
+               return -ENOENT;
+       }
+
+       return 0;
+}
+
+static struct clk_hw *jh7110_pll_get(struct of_phandle_args *clkspec, void *data)
+{
+       struct jh7110_clk_pll_priv *priv = data;
+       unsigned int idx = clkspec->args[0];
+
+       if (idx < JH7110_PLLCLK_END)
+               return &priv->data[idx].hw;
+
+       return ERR_PTR(-EINVAL);
+}
+
+static int jh7110_pll_probe(struct platform_device *pdev)
+{
+       const char *pll_name[JH7110_PLLCLK_END] = {
+               "pll0_out",
+               "pll1_out",
+               "pll2_out"
+       };
+       struct jh7110_clk_pll_priv *priv;
+       struct jh7110_clk_pll_data *data;
+       int ret;
+       unsigned int idx;
+
+       priv = devm_kzalloc(&pdev->dev, struct_size(priv, data, JH7110_PLLCLK_END),
+                           GFP_KERNEL);
+       if (!priv)
+               return -ENOMEM;
+
+       priv->dev = &pdev->dev;
+       priv->syscon_regmap = syscon_node_to_regmap(priv->dev->of_node->parent);
+       if (IS_ERR(priv->syscon_regmap))
+               return PTR_ERR(priv->syscon_regmap);
+
+       for (idx = 0; idx < JH7110_PLLCLK_END; idx++) {
+               struct clk_parent_data parents = {
+                       .index = 0,
+               };
+               struct clk_init_data init = {
+                       .name = pll_name[idx],
+                       .ops = &jh7110_pll_ops,
+                       .parent_data = &parents,
+                       .num_parents = 1,
+                       .flags = 0,
+               };
+
+               data = &priv->data[idx];
+
+               ret = jh7110_pll_data_get(data, idx);
+               if (ret)
+                       return ret;
+
+               data->hw.init = &init;
+               data->idx = idx;
+
+               ret = devm_clk_hw_register(&pdev->dev, &data->hw);
+               if (ret)
+                       return ret;
+       }
+
+       return devm_of_clk_add_hw_provider(&pdev->dev, jh7110_pll_get, priv);
+}
+
+static const struct of_device_id jh7110_pll_match[] = {
+       { .compatible = "starfive,jh7110-pll" },
+       { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, jh7110_pll_match);
+
+static struct platform_driver jh7110_pll_driver = {
+       .driver = {
+               .name = "clk-starfive-jh7110-pll",
+               .of_match_table = jh7110_pll_match,
+       },
+};
+builtin_platform_driver_probe(jh7110_pll_driver, jh7110_pll_probe);

diff --git a/drivers/clk/starfive/clk-starfive-jh7110-pll.h b/drivers/clk/starfive/clk-starfive-jh7110-pll.h
new file mode 100644 (file)
index 0000000..3deb35f
--- /dev/null
+++ b/drivers/clk/starfive/clk-starfive-jh7110-pll.h
@@ -0,0 +1,293 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * StarFive JH7110 PLL Clock Generator Driver
+ *
+ * Copyright (C) 2022 Xingyu Wu <xingyu.wu@starfivetech.com>
+ */
+
+#ifndef _CLK_STARFIVE_JH7110_PLL_H_
+#define _CLK_STARFIVE_JH7110_PLL_H_
+
+#include <linux/bits.h>
+
+/* The decimal places are counted by expanding them by a factor of STARFIVE_PLL_FRAC_PATR_SIZE. */
+#define STARFIVE_PLL_FRAC_PATR_SIZE            1000
+
+#define STARFIVE_JH7110_PLL0_DACPD_OFFSET      0x18
+#define STARFIVE_JH7110_PLL0_DACPD_SHIFT       24
+#define STARFIVE_JH7110_PLL0_DACPD_MASK                BIT(24)
+#define STARFIVE_JH7110_PLL0_DSMPD_OFFSET      0x18
+#define STARFIVE_JH7110_PLL0_DSMPD_SHIFT       25
+#define STARFIVE_JH7110_PLL0_DSMPD_MASK                BIT(25)
+#define STARFIVE_JH7110_PLL0_FBDIV_OFFSET      0x1c
+#define STARFIVE_JH7110_PLL0_FBDIV_SHIFT       0
+#define STARFIVE_JH7110_PLL0_FBDIV_MASK                GENMASK(11, 0)
+#define STARFIVE_JH7110_PLL0_FRAC_OFFSET       0x20
+#define STARFIVE_JH7110_PLL0_FRAC_SHIFT                0
+#define STARFIVE_JH7110_PLL0_FRAC_MASK         GENMASK(23, 0)
+#define STARFIVE_JH7110_PLL0_POSTDIV1_OFFSET   0x20
+#define STARFIVE_JH7110_PLL0_POSTDIV1_SHIFT    28
+#define STARFIVE_JH7110_PLL0_POSTDIV1_MASK     GENMASK(29, 28)
+#define STARFIVE_JH7110_PLL0_PREDIV_OFFSET     0x24
+#define STARFIVE_JH7110_PLL0_PREDIV_SHIFT      0
+#define STARFIVE_JH7110_PLL0_PREDIV_MASK       GENMASK(5, 0)
+
+#define STARFIVE_JH7110_PLL1_DACPD_OFFSET      0x24
+#define STARFIVE_JH7110_PLL1_DACPD_SHIFT       15
+#define STARFIVE_JH7110_PLL1_DACPD_MASK                BIT(15)
+#define STARFIVE_JH7110_PLL1_DSMPD_OFFSET      0x24
+#define STARFIVE_JH7110_PLL1_DSMPD_SHIFT       16
+#define STARFIVE_JH7110_PLL1_DSMPD_MASK                BIT(16)
+#define STARFIVE_JH7110_PLL1_FBDIV_OFFSET      0x24
+#define STARFIVE_JH7110_PLL1_FBDIV_SHIFT       17
+#define STARFIVE_JH7110_PLL1_FBDIV_MASK                GENMASK(28, 17)
+#define STARFIVE_JH7110_PLL1_FRAC_OFFSET       0x28
+#define STARFIVE_JH7110_PLL1_FRAC_SHIFT                0
+#define STARFIVE_JH7110_PLL1_FRAC_MASK         GENMASK(23, 0)
+#define STARFIVE_JH7110_PLL1_POSTDIV1_OFFSET   0x28
+#define STARFIVE_JH7110_PLL1_POSTDIV1_SHIFT    28
+#define STARFIVE_JH7110_PLL1_POSTDIV1_MASK     GENMASK(29, 28)
+#define STARFIVE_JH7110_PLL1_PREDIV_OFFSET     0x2c
+#define STARFIVE_JH7110_PLL1_PREDIV_SHIFT      0
+#define STARFIVE_JH7110_PLL1_PREDIV_MASK       GENMASK(5, 0)
+
+#define STARFIVE_JH7110_PLL2_DACPD_OFFSET      0x2c
+#define STARFIVE_JH7110_PLL2_DACPD_SHIFT       15
+#define STARFIVE_JH7110_PLL2_DACPD_MASK                BIT(15)
+#define STARFIVE_JH7110_PLL2_DSMPD_OFFSET      0x2c
+#define STARFIVE_JH7110_PLL2_DSMPD_SHIFT       16
+#define STARFIVE_JH7110_PLL2_DSMPD_MASK                BIT(16)
+#define STARFIVE_JH7110_PLL2_FBDIV_OFFSET      0x2c
+#define STARFIVE_JH7110_PLL2_FBDIV_SHIFT       17
+#define STARFIVE_JH7110_PLL2_FBDIV_MASK                GENMASK(28, 17)
+#define STARFIVE_JH7110_PLL2_FRAC_OFFSET       0x30
+#define STARFIVE_JH7110_PLL2_FRAC_SHIFT                0
+#define STARFIVE_JH7110_PLL2_FRAC_MASK         GENMASK(23, 0)
+#define STARFIVE_JH7110_PLL2_POSTDIV1_OFFSET   0x30
+#define STARFIVE_JH7110_PLL2_POSTDIV1_SHIFT    28
+#define STARFIVE_JH7110_PLL2_POSTDIV1_MASK     GENMASK(29, 28)
+#define STARFIVE_JH7110_PLL2_PREDIV_OFFSET     0x34
+#define STARFIVE_JH7110_PLL2_PREDIV_SHIFT      0
+#define STARFIVE_JH7110_PLL2_PREDIV_MASK       GENMASK(5, 0)
+
+struct jh7110_pll_syscon_offset {
+       unsigned int dacpd;
+       unsigned int dsmpd;
+       unsigned int fbdiv;
+       unsigned int frac;
+       unsigned int prediv;
+       unsigned int postdiv1;
+};
+
+struct jh7110_pll_syscon_mask {
+       u32 dacpd;
+       u32 dsmpd;
+       u32 fbdiv;
+       u32 frac;
+       u32 prediv;
+       u32 postdiv1;
+};
+
+struct jh7110_pll_syscon_shift {
+       char dacpd;
+       char dsmpd;
+       char fbdiv;
+       char frac;
+       char prediv;
+       char postdiv1;
+};
+
+struct jh7110_clk_pll_data {
+       struct clk_hw hw;
+       unsigned int idx;
+       unsigned int freq_select_idx;
+
+       struct jh7110_pll_syscon_offset offset;
+       struct jh7110_pll_syscon_mask mask;
+       struct jh7110_pll_syscon_shift shift;
+};
+
+struct jh7110_clk_pll_priv {
+       struct device *dev;
+       struct regmap *syscon_regmap;
+       struct jh7110_clk_pll_data data[];
+};
+
+struct starfive_pll_syscon_value {
+       unsigned long freq;
+       u32 prediv;
+       u32 fbdiv;
+       u32 postdiv1;
+/* Both daxpd and dsmpd set 1 while integer multiple mode */
+/* Both daxpd and dsmpd set 0 while fraction multiple mode */
+       u32 dacpd;
+       u32 dsmpd;
+/* frac value should be decimals multiplied by 2^24 */
+       u32 frac;
+};
+
+enum starfive_pll0_freq_index {
+       PLL0_FREQ_375 = 0,
+       PLL0_FREQ_500,
+       PLL0_FREQ_625,
+       PLL0_FREQ_750,
+       PLL0_FREQ_875,
+       PLL0_FREQ_1000,
+       PLL0_FREQ_1250,
+       PLL0_FREQ_1375,
+       PLL0_FREQ_1500,
+       PLL0_FREQ_MAX
+};
+
+enum starfive_pll1_freq_index {
+       PLL1_FREQ_1066 = 0,
+       PLL1_FREQ_1200,
+       PLL1_FREQ_1400,
+       PLL1_FREQ_1600,
+       PLL1_FREQ_MAX
+};
+
+enum starfive_pll2_freq_index {
+       PLL2_FREQ_1188 = 0,
+       PLL2_FREQ_12288,
+       PLL2_FREQ_MAX
+};
+
+/*
+ * Because the pll frequency is relatively fixed,
+ * it cannot be set arbitrarily, so it needs a specific configuration.
+ * PLL0 frequency should be multiple of 125MHz (USB frequency).
+ */
+static const struct starfive_pll_syscon_value
+       jh7110_pll0_syscon_freq[] = {
+       [PLL0_FREQ_375] = {
+               .freq = 375000000,
+               .prediv = 8,
+               .fbdiv = 125,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL0_FREQ_500] = {
+               .freq = 500000000,
+               .prediv = 6,
+               .fbdiv = 125,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL0_FREQ_625] = {
+               .freq = 625000000,
+               .prediv = 24,
+               .fbdiv = 625,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL0_FREQ_750] = {
+               .freq = 750000000,
+               .prediv = 4,
+               .fbdiv = 125,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL0_FREQ_875] = {
+               .freq = 875000000,
+               .prediv = 24,
+               .fbdiv = 875,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL0_FREQ_1000] = {
+               .freq = 1000000000,
+               .prediv = 3,
+               .fbdiv = 125,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL0_FREQ_1250] = {
+               .freq = 1250000000,
+               .prediv = 12,
+               .fbdiv = 625,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL0_FREQ_1375] = {
+               .freq = 1375000000,
+               .prediv = 24,
+               .fbdiv = 1375,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL0_FREQ_1500] = {
+               .freq = 1500000000,
+               .prediv = 2,
+               .fbdiv = 125,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+};
+
+static const struct starfive_pll_syscon_value
+       jh7110_pll1_syscon_freq[] = {
+       [PLL1_FREQ_1066] = {
+               .freq = 1066000000,
+               .prediv = 12,
+               .fbdiv = 533,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL1_FREQ_1200] = {
+               .freq = 1200000000,
+               .prediv = 1,
+               .fbdiv = 50,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL1_FREQ_1400] = {
+               .freq = 1400000000,
+               .prediv = 6,
+               .fbdiv = 350,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL1_FREQ_1600] = {
+               .freq = 1600000000,
+               .prediv = 3,
+               .fbdiv = 200,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+};
+
+static const struct starfive_pll_syscon_value
+       jh7110_pll2_syscon_freq[] = {
+       [PLL2_FREQ_1188] = {
+               .freq = 1188000000,
+               .prediv = 2,
+               .fbdiv = 99,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+       [PLL2_FREQ_12288] = {
+               .freq = 1228800000,
+               .prediv = 5,
+               .fbdiv = 256,
+               .postdiv1 = 1,
+               .dacpd = 1,
+               .dsmpd = 1,
+       },
+};
+
+#endif