clk: starfive: Add StarFive JH7110 clock driver 54/291954/1
authorYanhong Wang <yanhong.wang@starfivetech.com>
Wed, 29 Mar 2023 03:42:13 +0000 (11:42 +0800)
committerJaehoon Chung <jh80.chung@samsung.com>
Tue, 25 Apr 2023 06:26:16 +0000 (15:26 +0900)
Add a DM clock driver for StarFive JH7110 SoC.

Signed-off-by: Yanhong Wang <yanhong.wang@starfivetech.com>
Tested-by: Conor Dooley <conor.dooley@microchip.com>
(cherry picked from commit c13fe7c034fa2b616cc0223e20fd365afb36574a)
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Change-Id: I5da4b9e6f498266749cf3a974f9be1e9ee797aaf

drivers/clk/Kconfig
drivers/clk/Makefile
drivers/clk/starfive/Kconfig [new file with mode: 0644]
drivers/clk/starfive/Makefile [new file with mode: 0644]
drivers/clk/starfive/clk-jh7110-pll.c [new file with mode: 0644]
drivers/clk/starfive/clk-jh7110.c [new file with mode: 0644]
drivers/clk/starfive/clk.h [new file with mode: 0644]

index fd9e1a8..6b7a4a8 100644 (file)
@@ -235,6 +235,7 @@ source "drivers/clk/owl/Kconfig"
 source "drivers/clk/renesas/Kconfig"
 source "drivers/clk/sunxi/Kconfig"
 source "drivers/clk/sifive/Kconfig"
+source "drivers/clk/starfive/Kconfig"
 source "drivers/clk/stm32/Kconfig"
 source "drivers/clk/tegra/Kconfig"
 source "drivers/clk/ti/Kconfig"
index c274cda..66f5860 100644 (file)
@@ -13,6 +13,7 @@ obj-$(CONFIG_$(SPL_TPL_)CLK_COMPOSITE_CCF) += clk-composite.o
 
 obj-y += analogbits/
 obj-y += imx/
+obj-$(CONFIG_CLK_JH7110) += starfive/
 obj-y += tegra/
 obj-y += ti/
 obj-$(CONFIG_$(SPL_TPL_)CLK_INTEL) += intel/
diff --git a/drivers/clk/starfive/Kconfig b/drivers/clk/starfive/Kconfig
new file mode 100644 (file)
index 0000000..9399ef6
--- /dev/null
@@ -0,0 +1,17 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+config SPL_CLK_JH7110
+       bool "SPL clock support for JH7110"
+       depends on STARFIVE_JH7110 && SPL
+       select SPL_CLK
+       select SPL_CLK_CCF
+       help
+         This enables SPL DM support for clock driver in JH7110.
+
+config CLK_JH7110
+       bool "StarFive JH7110 clock support"
+       depends on STARFIVE_JH7110
+       select CLK
+       select CLK_CCF
+       help
+         This enables support clock driver for StarFive JH7110 SoC platform.
diff --git a/drivers/clk/starfive/Makefile b/drivers/clk/starfive/Makefile
new file mode 100644 (file)
index 0000000..ec0d157
--- /dev/null
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0+
+
+obj-y += clk-jh7110.o
+obj-y += clk-jh7110-pll.o
diff --git a/drivers/clk/starfive/clk-jh7110-pll.c b/drivers/clk/starfive/clk-jh7110-pll.c
new file mode 100644 (file)
index 0000000..02e6d90
--- /dev/null
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022-23 StarFive Technology Co., Ltd.
+ *
+ * Author:     Yanhong Wang <yanhong.wang@starfivetech.com>
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <malloc.h>
+#include <clk-uclass.h>
+#include <div64.h>
+#include <dm/device.h>
+#include <linux/bitops.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+
+#include "clk.h"
+
+#define UBOOT_DM_CLK_JH7110_PLLX "jh7110_clk_pllx"
+
+#define PLL_PD_OFF             1
+#define PLL_PD_ON              0
+
+#define CLK_DDR_BUS_MASK       GENMASK(29, 24)
+#define CLK_DDR_BUS_OFFSET     0xAC
+#define CLK_DDR_BUS_OSC_DIV2   0
+#define CLK_DDR_BUS_PLL1_DIV2  1
+#define CLK_DDR_BUS_PLL1_DIV4  2
+#define CLK_DDR_BUS_PLL1_DIV8  3
+
+struct clk_jh7110_pllx {
+       struct clk              clk;
+       void __iomem    *base;
+       void __iomem    *sysreg;
+       enum starfive_pll_type  type;
+       const struct starfive_pllx_offset *offset;
+       const struct starfive_pllx_rate *rate_table;
+       int rate_count;
+};
+
+#define getbits_le32(addr, mask) ((in_le32(addr) & (mask)) >> __ffs((mask)))
+
+#define PLLX_SET(offset, mask, val) do {\
+               reg = readl((ulong *)((ulong)pll->base + (offset))); \
+               reg &= ~(mask); \
+               reg |= (mask) & ((val) << __ffs(mask)); \
+               writel(reg, (ulong *)((ulong)pll->base + (offset))); \
+       } while (0)
+
+#define PLLX_RATE(_rate, _pd, _fd)     \
+       {                                               \
+               .rate           = (_rate),      \
+               .prediv         = (_pd),        \
+               .fbdiv          = (_fd),        \
+       }
+
+#define to_clk_pllx(_clk) container_of(_clk, struct clk_jh7110_pllx, clk)
+
+static const struct starfive_pllx_rate jh7110_pll0_tbl[] = {
+       PLLX_RATE(375000000UL, 8, 125),
+       PLLX_RATE(500000000UL, 6, 125),
+       PLLX_RATE(625000000UL, 24, 625),
+       PLLX_RATE(750000000UL, 4, 125),
+       PLLX_RATE(875000000UL, 24, 875),
+       PLLX_RATE(1000000000UL, 3, 125),
+       PLLX_RATE(1250000000UL, 12, 625),
+       PLLX_RATE(1375000000UL, 24, 1375),
+       PLLX_RATE(1500000000UL, 2, 125),
+       PLLX_RATE(1625000000UL, 24, 1625),
+       PLLX_RATE(1750000000UL, 12, 875),
+       PLLX_RATE(1800000000UL, 3, 225),
+};
+
+static const struct starfive_pllx_rate jh7110_pll1_tbl[] = {
+       PLLX_RATE(1066000000UL, 12, 533),
+       PLLX_RATE(1200000000UL, 1, 50),
+       PLLX_RATE(1400000000UL, 6, 350),
+       PLLX_RATE(1600000000UL, 3, 200),
+};
+
+static const struct starfive_pllx_rate jh7110_pll2_tbl[] = {
+       PLLX_RATE(1228800000UL, 15, 768),
+       PLLX_RATE(1188000000UL, 2, 99),
+};
+
+static const struct starfive_pllx_offset jh7110_pll0_offset = {
+       .pd = 0x20,
+       .prediv = 0x24,
+       .fbdiv = 0x1c,
+       .frac = 0x20,
+       .postdiv1 = 0x20,
+       .dacpd = 0x18,
+       .dsmpd = 0x18,
+       .pd_mask = BIT(27),
+       .prediv_mask = GENMASK(5, 0),
+       .fbdiv_mask = GENMASK(11, 0),
+       .frac_mask = GENMASK(23, 0),
+       .postdiv1_mask = GENMASK(29, 28),
+       .dacpd_mask = BIT(24),
+       .dsmpd_mask = BIT(25)
+};
+
+static const struct starfive_pllx_offset jh7110_pll1_offset = {
+       .pd = 0x28,
+       .prediv = 0x2c,
+       .fbdiv = 0x24,
+       .frac = 0x28,
+       .postdiv1 = 0x28,
+       .dacpd = 0x24,
+       .dsmpd = 0x24,
+       .pd_mask = BIT(27),
+       .prediv_mask = GENMASK(5, 0),
+       .fbdiv_mask = GENMASK(28, 17),
+       .frac_mask = GENMASK(23, 0),
+       .postdiv1_mask = GENMASK(29, 28),
+       .dacpd_mask = BIT(15),
+       .dsmpd_mask = BIT(16)
+};
+
+static const struct starfive_pllx_offset jh7110_pll2_offset = {
+       .pd = 0x30,
+       .prediv = 0x34,
+       .fbdiv = 0x2c,
+       .frac = 0x30,
+       .postdiv1 = 0x30,
+       .dacpd = 0x2c,
+       .dsmpd = 0x2c,
+       .pd_mask = BIT(27),
+       .prediv_mask = GENMASK(5, 0),
+       .fbdiv_mask = GENMASK(28, 17),
+       .frac_mask = GENMASK(23, 0),
+       .postdiv1_mask = GENMASK(29, 28),
+       .dacpd_mask = BIT(15),
+       .dsmpd_mask = BIT(16)
+};
+
+struct starfive_pllx_clk starfive_jh7110_pll0 __initdata = {
+       .type = PLL0,
+       .offset = &jh7110_pll0_offset,
+       .rate_table = jh7110_pll0_tbl,
+       .rate_count = ARRAY_SIZE(jh7110_pll0_tbl),
+};
+
+struct starfive_pllx_clk starfive_jh7110_pll1 __initdata = {
+       .type = PLL1,
+       .offset = &jh7110_pll1_offset,
+       .rate_table = jh7110_pll1_tbl,
+       .rate_count = ARRAY_SIZE(jh7110_pll1_tbl),
+};
+
+struct starfive_pllx_clk starfive_jh7110_pll2 __initdata = {
+       .type = PLL2,
+       .offset = &jh7110_pll2_offset,
+       .rate_table = jh7110_pll2_tbl,
+       .rate_count = ARRAY_SIZE(jh7110_pll2_tbl),
+};
+
+static const struct starfive_pllx_rate *
+jh7110_get_pll_settings(struct clk_jh7110_pllx *pll, unsigned long rate)
+{
+       for (int i = 0; i < pll->rate_count; i++)
+               if (rate == pll->rate_table[i].rate)
+                       return &pll->rate_table[i];
+
+       return NULL;
+}
+
+static void jh7110_pll_set_rate(struct clk_jh7110_pllx *pll,
+                               const struct starfive_pllx_rate *rate)
+{
+       u32 reg;
+       bool set = (pll->type == PLL1) ? true : false;
+
+       if (set) {
+               reg = readl((ulong *)((ulong)pll->sysreg + CLK_DDR_BUS_OFFSET));
+               reg &= ~CLK_DDR_BUS_MASK;
+               reg |= CLK_DDR_BUS_OSC_DIV2 << __ffs(CLK_DDR_BUS_MASK);
+               writel(reg, (ulong *)((ulong)pll->sysreg + CLK_DDR_BUS_OFFSET));
+       }
+
+       PLLX_SET(pll->offset->pd, pll->offset->pd_mask, PLL_PD_OFF);
+       PLLX_SET(pll->offset->dacpd, pll->offset->dacpd_mask, 1);
+       PLLX_SET(pll->offset->dsmpd, pll->offset->dsmpd_mask, 1);
+       PLLX_SET(pll->offset->prediv, pll->offset->prediv_mask, rate->prediv);
+       PLLX_SET(pll->offset->fbdiv, pll->offset->fbdiv_mask, rate->fbdiv);
+       PLLX_SET(pll->offset->postdiv1, pll->offset->postdiv1, 0);
+       PLLX_SET(pll->offset->pd, pll->offset->pd_mask, PLL_PD_ON);
+
+       if (set) {
+               udelay(100);
+               reg = readl((ulong *)((ulong)pll->sysreg + CLK_DDR_BUS_OFFSET));
+               reg &= ~CLK_DDR_BUS_MASK;
+               reg |= CLK_DDR_BUS_PLL1_DIV2 << __ffs(CLK_DDR_BUS_MASK);
+               writel(reg, (ulong *)((ulong)pll->sysreg + CLK_DDR_BUS_OFFSET));
+       }
+}
+
+static ulong jh7110_pllx_recalc_rate(struct clk *clk)
+{
+       struct clk_jh7110_pllx *pll = to_clk_pllx(dev_get_clk_ptr(clk->dev));
+       u64 refclk = clk_get_parent_rate(clk);
+       u32 dacpd, dsmpd;
+       u32 prediv, fbdiv, postdiv1;
+       u64 frac;
+
+       dacpd = getbits_le32((ulong)pll->base + pll->offset->dacpd,
+                            pll->offset->dacpd_mask);
+       dsmpd = getbits_le32((ulong)pll->base + pll->offset->dsmpd,
+                            pll->offset->dsmpd_mask);
+       prediv = getbits_le32((ulong)pll->base + pll->offset->prediv,
+                             pll->offset->prediv_mask);
+       fbdiv = getbits_le32((ulong)pll->base + pll->offset->fbdiv,
+                            pll->offset->fbdiv_mask);
+       postdiv1 = 1 << getbits_le32((ulong)pll->base + pll->offset->postdiv1,
+                       pll->offset->postdiv1_mask);
+       frac = (u64)getbits_le32((ulong)pll->base + pll->offset->frac,
+                       pll->offset->frac_mask);
+
+       /* Integer Multiple Mode
+        * Both dacpd and dsmpd should be set as 1 while integer multiple mode.
+        *
+        * The frequency of outputs can be figured out as below.
+        *
+     *       Fvco = Fref*Nl/M
+        * NI is integer frequency dividing ratio of feedback divider, set by fbdiv1[11:0] ,
+        *    NI = 8, 9, 10, 12.13....4095
+        * M is frequency dividing ratio of pre-divider, set by prediv[5:0],M = 1,2...63
+        *
+     *      Fclko1 = Fvco/Q1
+        * Q1 is frequency dividing ratio of post divider, set by postdiv1[1:0],Q1= 1,2,4,8
+        *
+        * Fraction Multiple Mode
+        *
+        *  Both dacpd and dsmpd should be set as 0 while integer multiple mode.
+        *
+     *      Fvco = Fref*(NI+NF)/M
+        * NI is integer frequency dividing ratio of feedback divider, set by fbdiv[11:0] ,
+        *     NI = 8, 9, 10, 12.13....4095
+        * NF is fractional frequency dividing ratio, set by frac[23:0],  NF =frac[23:0]/2^24= 0~0.99999994
+        * M is frequency dividing ratio of pre-divider, set by prediv[5:0],M = 1,2...63
+        *
+     *     Fclko1 = Fvco/Q1
+        * Q1 is frequency dividing ratio of post divider, set by postdivl[1:0],Q1= 1,2,4,8
+        */
+       if (dacpd == 1 && dsmpd == 1)
+               frac = 0;
+       else if (dacpd == 0 && dsmpd == 0)
+               do_div(frac, 1 << 24);
+       else
+               return -EINVAL;
+
+       refclk *= (fbdiv + frac);
+       do_div(refclk, prediv * postdiv1);
+
+       return refclk;
+}
+
+static ulong jh7110_pllx_set_rate(struct clk *clk, ulong drate)
+{
+       struct clk_jh7110_pllx *pll = to_clk_pllx(dev_get_clk_ptr(clk->dev));
+       const struct starfive_pllx_rate *rate;
+
+       rate = jh7110_get_pll_settings(pll, drate);
+       if (!rate)
+               return -EINVAL;
+
+       jh7110_pll_set_rate(pll, rate);
+
+       return jh7110_pllx_recalc_rate(clk);
+}
+
+static const struct clk_ops clk_jh7110_ops = {
+       .set_rate       = jh7110_pllx_set_rate,
+       .get_rate       = jh7110_pllx_recalc_rate,
+};
+
+struct clk *starfive_jh7110_pll(const char *name, const char *parent_name,
+                               void __iomem *base, void __iomem *sysreg,
+                               const struct starfive_pllx_clk *pll_clk)
+{
+       struct clk_jh7110_pllx *pll;
+       struct clk *clk;
+       int ret;
+
+       if (!pll_clk || !base || !sysreg)
+               return ERR_PTR(-EINVAL);
+
+       pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+       if (!pll)
+               return ERR_PTR(-ENOMEM);
+
+       pll->base = base;
+       pll->sysreg = sysreg;
+       pll->type = pll_clk->type;
+       pll->offset = pll_clk->offset;
+       pll->rate_table = pll_clk->rate_table;
+       pll->rate_count = pll_clk->rate_count;
+
+       clk = &pll->clk;
+       ret = clk_register(clk, UBOOT_DM_CLK_JH7110_PLLX, name, parent_name);
+       if (ret) {
+               kfree(pll);
+               return ERR_PTR(ret);
+       }
+
+       if (IS_ENABLED(CONFIG_SPL_BUILD) && pll->type == PLL0)
+               jh7110_pllx_set_rate(clk, 1000000000);
+
+       if (IS_ENABLED(CONFIG_SPL_BUILD) && pll->type == PLL2)
+               jh7110_pllx_set_rate(clk, 1188000000);
+
+       return clk;
+}
+
+U_BOOT_DRIVER(jh7110_clk_pllx) = {
+       .name   = UBOOT_DM_CLK_JH7110_PLLX,
+       .id     = UCLASS_CLK,
+       .ops    = &clk_jh7110_ops,
+};
diff --git a/drivers/clk/starfive/clk-jh7110.c b/drivers/clk/starfive/clk-jh7110.c
new file mode 100644 (file)
index 0000000..a74b709
--- /dev/null
@@ -0,0 +1,603 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2022-23 StarFive Technology Co., Ltd.
+ *
+ * Author:     Yanhong Wang <yanhong.wang@starfivetech.com>
+ */
+
+#include <common.h>
+#include <clk.h>
+#include <clk-uclass.h>
+#include <dm.h>
+#include <dm/device.h>
+#include <dm/devres.h>
+#include <dm/lists.h>
+#include <dt-bindings/clock/starfive,jh7110-crg.h>
+#include <log.h>
+#include <linux/clk-provider.h>
+
+#include "clk.h"
+
+#define STARFIVE_CLK_ENABLE_SHIFT      31 /* [31] */
+#define STARFIVE_CLK_INVERT_SHIFT      30 /* [30] */
+#define STARFIVE_CLK_MUX_SHIFT         24 /* [29:24] */
+#define STARFIVE_CLK_DIV_SHIFT         0  /* [23:0] */
+
+#define OFFSET(id) ((id) * 4)
+#define AONOFFSET(id) (((id) - JH7110_SYSCLK_END) * 4)
+#define STGOFFSET(id) (((id) - JH7110_AONCLK_END) * 4)
+
+typedef int (*jh1710_init_fn)(struct udevice *dev);
+
+struct jh7110_clk_priv {
+       void __iomem *reg;
+       jh1710_init_fn init;
+};
+
+static const char *cpu_root_sels[2] = {
+       [0] = "oscillator",
+       [1] = "pll0_out",
+};
+
+static const char *perh_root_sels[2] = {
+       [0] = "pll0_out",
+       [1] = "pll2_out",
+};
+
+static const char *bus_root_sels[2] = {
+       [0] = "oscillator",
+       [1] = "pll2_out",
+};
+
+static const char *qspi_ref_sels[2] = {
+       [0] = "oscillator",
+       [1] = "qspi_ref_src",
+};
+
+static const char *gmac1_tx_sels[2] = {
+       [0] = "gmac1_gtxclk",
+       [1] = "gmac1_rmii_rtx",
+};
+
+static const char *gmac0_tx_sels[2] = {
+       [0] = "gmac0_gtxclk",
+       [1] = "gmac0_rmii_rtx",
+};
+
+static const char *apb_func_sels[2] = {
+       [0] = "osc_div4",
+       [1] = "oscillator",
+};
+
+static const char *gmac1_rx_sels[2] = {
+       [0] = "gmac1-rgmii-rxin-clock",
+       [1] = "gmac1_rmii_rtx",
+};
+
+static struct clk *starfive_clk_mux(void __iomem *reg,
+                                   const char *name,
+                                   unsigned int offset,
+                                   u8 width,
+                                   const char * const *parent_names,
+                                   u8 num_parents)
+{
+       return  clk_register_mux(NULL, name, parent_names, num_parents, 0,
+                               reg + offset, STARFIVE_CLK_MUX_SHIFT,
+                               width, 0);
+}
+
+static struct clk *starfive_clk_gate(void __iomem *reg,
+                                    const char *name,
+                                    const char *parent_name,
+                                    unsigned int offset)
+{
+       return clk_register_gate(NULL, name, parent_name, 0, reg + offset,
+                               STARFIVE_CLK_ENABLE_SHIFT, 0, NULL);
+}
+
+static struct clk *starfive_clk_inv(void __iomem *reg,
+                                   const char *name,
+                                   const char *parent_name,
+                                   unsigned int offset)
+{
+       return clk_register_gate(NULL, name, parent_name, 0, reg + offset,
+                               STARFIVE_CLK_INVERT_SHIFT, 0, NULL);
+}
+
+static struct clk *starfive_clk_divider(void __iomem *reg,
+                                       const char *name,
+                                       const char *parent_name,
+                                       unsigned int offset,
+                                       u8 width)
+{
+       return clk_register_divider(NULL, name, parent_name, 0, reg + offset,
+                               0, width, CLK_DIVIDER_ONE_BASED);
+}
+
+static struct clk *starfive_clk_composite(void __iomem *reg,
+                                         const char *name,
+                                         const char * const *parent_names,
+                                         unsigned int num_parents,
+                                         unsigned int offset,
+                                         unsigned int mux_width,
+                                         unsigned int gate_width,
+                                         unsigned int div_width)
+{
+       struct clk *clk = ERR_PTR(-ENOMEM);
+       struct clk_divider *div = NULL;
+       struct clk_gate *gate = NULL;
+       struct clk_mux *mux = NULL;
+       int mask_arry[4] = {0x1, 0x3, 0x7, 0xF};
+       int mask;
+
+       if (mux_width) {
+               if (mux_width > 4)
+                       goto fail;
+               else
+                       mask = mask_arry[mux_width - 1];
+
+               mux = kzalloc(sizeof(*mux), GFP_KERNEL);
+               if (!mux)
+                       goto fail;
+
+               mux->reg = reg + offset;
+               mux->mask = mask;
+               mux->shift = STARFIVE_CLK_MUX_SHIFT;
+               mux->num_parents = num_parents;
+               mux->flags = 0;
+               mux->parent_names = parent_names;
+       }
+
+       if (gate_width) {
+               gate = kzalloc(sizeof(*gate), GFP_KERNEL);
+
+               if (!gate)
+                       goto fail;
+
+               gate->reg = reg + offset;
+               gate->bit_idx = STARFIVE_CLK_ENABLE_SHIFT;
+               gate->flags = 0;
+       }
+
+       if (div_width) {
+               div = kzalloc(sizeof(*div), GFP_KERNEL);
+               if (!div)
+                       goto fail;
+
+               div->reg = reg + offset;
+
+               if (offset == OFFSET(JH7110_SYSCLK_UART3_CORE) ||
+                   offset == OFFSET(JH7110_SYSCLK_UART4_CORE) ||
+                   offset == OFFSET(JH7110_SYSCLK_UART5_CORE)) {
+                       div->shift = 8;
+                       div->width = 8;
+               } else {
+                       div->shift = STARFIVE_CLK_DIV_SHIFT;
+                       div->width = div_width;
+               }
+               div->flags = CLK_DIVIDER_ONE_BASED;
+               div->table = NULL;
+       }
+
+       clk = clk_register_composite(NULL, name,
+                                    parent_names, num_parents,
+                                    &mux->clk, &clk_mux_ops,
+                                    &div->clk, &clk_divider_ops,
+                                    &gate->clk, &clk_gate_ops, 0);
+
+       if (IS_ERR(clk))
+               goto fail;
+
+       return clk;
+
+fail:
+       kfree(gate);
+       kfree(div);
+       kfree(mux);
+       return ERR_CAST(clk);
+}
+
+static struct clk *starfive_clk_fix_parent_composite(void __iomem *reg,
+                                                    const char *name,
+                                                    const char *parent_names,
+                                                    unsigned int offset,
+                                                    unsigned int mux_width,
+                                                    unsigned int gate_width,
+                                                    unsigned int div_width)
+{
+       const char * const *parents;
+
+       parents  = &parent_names;
+
+       return starfive_clk_composite(reg, name, parents, 1, offset,
+                       mux_width, gate_width, div_width);
+}
+
+static struct clk *starfive_clk_gate_divider(void __iomem *reg,
+                                            const char *name,
+                                            const char *parent,
+                                            unsigned int offset,
+                                            unsigned int width)
+{
+       const char * const *parent_names;
+
+       parent_names  = &parent;
+
+       return starfive_clk_composite(reg, name, parent_names, 1,
+                               offset, 0, 1, width);
+}
+
+static int jh7110_syscrg_init(struct udevice *dev)
+{
+       struct jh7110_clk_priv *priv = dev_get_priv(dev);
+       struct ofnode_phandle_args args;
+       fdt_addr_t addr;
+       struct clk *pclk;
+       int ret;
+
+       ret = ofnode_parse_phandle_with_args(dev->node_, "starfive,sys-syscon", NULL, 0, 0, &args);
+       if (ret)
+               return ret;
+
+       addr =  ofnode_get_addr(args.node);
+       if (addr == FDT_ADDR_T_NONE)
+               return -EINVAL;
+
+       clk_dm(JH7110_SYSCLK_PLL0_OUT,
+              starfive_jh7110_pll("pll0_out", "oscillator", (void __iomem *)addr,
+                                  priv->reg, &starfive_jh7110_pll0));
+       clk_dm(JH7110_SYSCLK_PLL1_OUT,
+              starfive_jh7110_pll("pll1_out", "oscillator", (void __iomem *)addr,
+                                  priv->reg, &starfive_jh7110_pll1));
+       clk_dm(JH7110_SYSCLK_PLL2_OUT,
+              starfive_jh7110_pll("pll2_out", "oscillator", (void __iomem *)addr,
+                                  priv->reg, &starfive_jh7110_pll2));
+       clk_dm(JH7110_SYSCLK_CPU_ROOT,
+              starfive_clk_mux(priv->reg, "cpu_root",
+                               OFFSET(JH7110_SYSCLK_CPU_ROOT), 1,
+                               cpu_root_sels, ARRAY_SIZE(cpu_root_sels)));
+       clk_dm(JH7110_SYSCLK_CPU_CORE,
+              starfive_clk_divider(priv->reg,
+                                   "cpu_core", "cpu_root",
+                                   OFFSET(JH7110_SYSCLK_CPU_CORE), 3));
+       clk_dm(JH7110_SYSCLK_CPU_BUS,
+              starfive_clk_divider(priv->reg,
+                                   "cpu_bus", "cpu_core",
+                                   OFFSET(JH7110_SYSCLK_CPU_BUS), 2));
+       clk_dm(JH7110_SYSCLK_PERH_ROOT,
+              starfive_clk_composite(priv->reg,
+                                     "perh_root",
+                                     perh_root_sels, ARRAY_SIZE(perh_root_sels),
+                                     OFFSET(JH7110_SYSCLK_PERH_ROOT), 1, 0, 2));
+       clk_dm(JH7110_SYSCLK_BUS_ROOT,
+              starfive_clk_mux(priv->reg, "bus_root",
+                               OFFSET(JH7110_SYSCLK_BUS_ROOT), 1,
+                               bus_root_sels,  ARRAY_SIZE(bus_root_sels)));
+       clk_dm(JH7110_SYSCLK_NOCSTG_BUS,
+              starfive_clk_divider(priv->reg,
+                                   "nocstg_bus", "bus_root",
+                                   OFFSET(JH7110_SYSCLK_NOCSTG_BUS), 3));
+       clk_dm(JH7110_SYSCLK_AXI_CFG0,
+              starfive_clk_divider(priv->reg,
+                                   "axi_cfg0", "bus_root",
+                                   OFFSET(JH7110_SYSCLK_AXI_CFG0), 2));
+       clk_dm(JH7110_SYSCLK_STG_AXIAHB,
+              starfive_clk_divider(priv->reg,
+                                   "stg_axiahb", "axi_cfg0",
+                                   OFFSET(JH7110_SYSCLK_STG_AXIAHB), 2));
+       clk_dm(JH7110_SYSCLK_AHB0,
+              starfive_clk_gate(priv->reg,
+                                "ahb0", "stg_axiahb",
+                                OFFSET(JH7110_SYSCLK_AHB0)));
+       clk_dm(JH7110_SYSCLK_AHB1,
+              starfive_clk_gate(priv->reg,
+                                "ahb1", "stg_axiahb",
+                                OFFSET(JH7110_SYSCLK_AHB1)));
+       clk_dm(JH7110_SYSCLK_APB_BUS,
+              starfive_clk_divider(priv->reg,
+                                   "apb_bus", "stg_axiahb",
+                                   OFFSET(JH7110_SYSCLK_APB_BUS), 4));
+       clk_dm(JH7110_SYSCLK_APB0,
+              starfive_clk_gate(priv->reg,
+                                "apb0", "apb_bus",
+                                OFFSET(JH7110_SYSCLK_APB0)));
+       clk_dm(JH7110_SYSCLK_QSPI_AHB,
+              starfive_clk_gate(priv->reg,
+                                "qspi_ahb", "ahb1",
+                                OFFSET(JH7110_SYSCLK_QSPI_AHB)));
+       clk_dm(JH7110_SYSCLK_QSPI_APB,
+              starfive_clk_gate(priv->reg,
+                                "qspi_apb", "apb_bus",
+                                OFFSET(JH7110_SYSCLK_QSPI_APB)));
+       clk_dm(JH7110_SYSCLK_QSPI_REF_SRC,
+              starfive_clk_divider(priv->reg,
+                                   "qspi_ref_src", "pll0_out",
+                                   OFFSET(JH7110_SYSCLK_QSPI_REF_SRC), 5));
+       clk_dm(JH7110_SYSCLK_QSPI_REF,
+              starfive_clk_composite(priv->reg,
+                                     "qspi_ref",
+                                     qspi_ref_sels, ARRAY_SIZE(qspi_ref_sels),
+                                     OFFSET(JH7110_SYSCLK_QSPI_REF), 1, 1, 0));
+       clk_dm(JH7110_SYSCLK_SDIO0_AHB,
+              starfive_clk_gate(priv->reg,
+                                "sdio0_ahb", "ahb0",
+                                OFFSET(JH7110_SYSCLK_SDIO0_AHB)));
+       clk_dm(JH7110_SYSCLK_SDIO1_AHB,
+              starfive_clk_gate(priv->reg,
+                                "sdio1_ahb", "ahb0",
+                                OFFSET(JH7110_SYSCLK_SDIO1_AHB)));
+       clk_dm(JH7110_SYSCLK_SDIO0_SDCARD,
+              starfive_clk_fix_parent_composite(priv->reg,
+                                                "sdio0_sdcard", "axi_cfg0",
+                                                OFFSET(JH7110_SYSCLK_SDIO0_SDCARD), 0, 1, 4));
+       clk_dm(JH7110_SYSCLK_SDIO1_SDCARD,
+              starfive_clk_fix_parent_composite(priv->reg,
+                                                "sdio1_sdcard", "axi_cfg0",
+                                                OFFSET(JH7110_SYSCLK_SDIO1_SDCARD), 0, 1, 4));
+       clk_dm(JH7110_SYSCLK_USB_125M,
+              starfive_clk_divider(priv->reg,
+                                   "usb_125m", "pll0_out",
+                                   OFFSET(JH7110_SYSCLK_USB_125M), 4));
+       clk_dm(JH7110_SYSCLK_NOC_BUS_STG_AXI,
+              starfive_clk_gate(priv->reg,
+                                "noc_bus_stg_axi", "nocstg_bus",
+                                OFFSET(JH7110_SYSCLK_NOC_BUS_STG_AXI)));
+       clk_dm(JH7110_SYSCLK_GMAC1_AHB,
+              starfive_clk_gate(priv->reg,
+                                "gmac1_ahb", "ahb0",
+                                OFFSET(JH7110_SYSCLK_GMAC1_AHB)));
+       clk_dm(JH7110_SYSCLK_GMAC1_AXI,
+              starfive_clk_gate(priv->reg,
+                                "gmac1_axi", "stg_axiahb",
+                                OFFSET(JH7110_SYSCLK_GMAC1_AXI)));
+       clk_dm(JH7110_SYSCLK_GMAC_SRC,
+              starfive_clk_divider(priv->reg,
+                                   "gmac_src", "pll0_out",
+                                   OFFSET(JH7110_SYSCLK_GMAC_SRC), 3));
+       clk_dm(JH7110_SYSCLK_GMAC1_GTXCLK,
+              starfive_clk_divider(priv->reg,
+                                   "gmac1_gtxclk", "pll0_out",
+                                   OFFSET(JH7110_SYSCLK_GMAC1_GTXCLK), 4));
+       clk_dm(JH7110_SYSCLK_GMAC1_GTXC,
+              starfive_clk_gate(priv->reg,
+                                "gmac1_gtxc", "gmac1_gtxclk",
+                                OFFSET(JH7110_SYSCLK_GMAC1_GTXC)));
+       clk_dm(JH7110_SYSCLK_GMAC1_RMII_RTX,
+              starfive_clk_divider(priv->reg,
+                                   "gmac1_rmii_rtx", "gmac1-rmii-refin-clock",
+                                   OFFSET(JH7110_SYSCLK_GMAC1_RMII_RTX), 5));
+       clk_dm(JH7110_SYSCLK_GMAC1_PTP,
+              starfive_clk_gate_divider(priv->reg,
+                                        "gmac1_ptp", "gmac_src",
+                                        OFFSET(JH7110_SYSCLK_GMAC1_PTP), 5));
+       clk_dm(JH7110_SYSCLK_GMAC1_RX,
+              starfive_clk_mux(priv->reg, "gmac1_rx",
+                               OFFSET(JH7110_SYSCLK_GMAC1_RX), 1,
+                               gmac1_rx_sels,  ARRAY_SIZE(gmac1_rx_sels)));
+       clk_dm(JH7110_SYSCLK_GMAC1_TX,
+              starfive_clk_composite(priv->reg,
+                                     "gmac1_tx",
+                                     gmac1_tx_sels, ARRAY_SIZE(gmac1_tx_sels),
+                                     OFFSET(JH7110_SYSCLK_GMAC1_TX), 1, 1, 0));
+       clk_dm(JH7110_SYSCLK_GMAC1_TX_INV,
+              starfive_clk_inv(priv->reg,
+                               "gmac1_tx_inv", "gmac1_tx",
+                               OFFSET(JH7110_SYSCLK_GMAC1_TX_INV)));
+       clk_dm(JH7110_SYSCLK_GMAC0_GTXCLK,
+              starfive_clk_gate_divider(priv->reg,
+                                        "gmac0_gtxclk", "pll0_out",
+                                        OFFSET(JH7110_SYSCLK_GMAC0_GTXCLK), 4));
+       clk_dm(JH7110_SYSCLK_GMAC0_PTP,
+              starfive_clk_gate_divider(priv->reg,
+                                        "gmac0_ptp", "gmac_src",
+                                        OFFSET(JH7110_SYSCLK_GMAC0_PTP), 5));
+       clk_dm(JH7110_SYSCLK_GMAC0_GTXC,
+              starfive_clk_gate(priv->reg,
+                                "gmac0_gtxc", "gmac0_gtxclk",
+                                OFFSET(JH7110_SYSCLK_GMAC0_GTXC)));
+       clk_dm(JH7110_SYSCLK_UART0_APB,
+              starfive_clk_gate(priv->reg,
+                                "uart0_apb", "apb0",
+                                OFFSET(JH7110_SYSCLK_UART0_APB)));
+       clk_dm(JH7110_SYSCLK_UART0_CORE,
+              starfive_clk_gate(priv->reg,
+                                "uart0_core", "oscillator",
+                                OFFSET(JH7110_SYSCLK_UART0_CORE)));
+       clk_dm(JH7110_SYSCLK_UART1_APB,
+              starfive_clk_gate(priv->reg,
+                                "uart1_apb", "apb0",
+                                OFFSET(JH7110_SYSCLK_UART1_APB)));
+       clk_dm(JH7110_SYSCLK_UART1_CORE,
+              starfive_clk_gate(priv->reg,
+                                "uart1_core", "oscillator",
+                                OFFSET(JH7110_SYSCLK_UART1_CORE)));
+       clk_dm(JH7110_SYSCLK_UART2_APB,
+              starfive_clk_gate(priv->reg,
+                                "uart2_apb", "apb0",
+                                OFFSET(JH7110_SYSCLK_UART2_APB)));
+       clk_dm(JH7110_SYSCLK_UART2_CORE,
+              starfive_clk_gate(priv->reg,
+                                "uart2_core", "oscillator",
+                                OFFSET(JH7110_SYSCLK_UART2_CORE)));
+       clk_dm(JH7110_SYSCLK_UART3_APB,
+              starfive_clk_gate(priv->reg,
+                                "uart3_apb", "apb0",
+                                OFFSET(JH7110_SYSCLK_UART3_APB)));
+       clk_dm(JH7110_SYSCLK_UART3_CORE,
+              starfive_clk_gate_divider(priv->reg,
+                                        "uart3_core", "perh_root",
+                                        OFFSET(JH7110_SYSCLK_UART3_CORE), 8));
+       clk_dm(JH7110_SYSCLK_UART4_APB,
+              starfive_clk_gate(priv->reg,
+                                "uart4_apb", "apb0",
+                                OFFSET(JH7110_SYSCLK_UART4_APB)));
+       clk_dm(JH7110_SYSCLK_UART4_CORE,
+              starfive_clk_gate_divider(priv->reg,
+                                        "uart4_core", "perh_root",
+                                        OFFSET(JH7110_SYSCLK_UART4_CORE), 8));
+       clk_dm(JH7110_SYSCLK_UART5_APB,
+              starfive_clk_gate(priv->reg,
+                                "uart5_apb", "apb0",
+                                OFFSET(JH7110_SYSCLK_UART5_APB)));
+       clk_dm(JH7110_SYSCLK_UART5_CORE,
+              starfive_clk_gate_divider(priv->reg,
+                                        "uart5_core", "perh_root",
+                                        OFFSET(JH7110_SYSCLK_UART5_CORE), 8));
+       clk_dm(JH7110_SYSCLK_I2C2_APB,
+              starfive_clk_gate(priv->reg,
+                                "i2c2_apb", "apb0",
+                                OFFSET(JH7110_SYSCLK_I2C2_APB)));
+       clk_dm(JH7110_SYSCLK_I2C5_APB,
+              starfive_clk_gate(priv->reg,
+                                "i2c5_apb", "apb0",
+                                OFFSET(JH7110_SYSCLK_I2C5_APB)));
+
+       /* enable noc_bus_stg_axi clock */
+       if (!clk_get_by_id(JH7110_SYSCLK_NOC_BUS_STG_AXI, &pclk))
+               clk_enable(pclk);
+
+       return 0;
+}
+
+static int jh7110_aoncrg_init(struct udevice *dev)
+{
+       struct jh7110_clk_priv *priv = dev_get_priv(dev);
+
+       clk_dm(JH7110_AONCLK_OSC_DIV4,
+              starfive_clk_divider(priv->reg,
+                                   "osc_div4", "oscillator",
+                                   AONOFFSET(JH7110_AONCLK_OSC_DIV4), 5));
+       clk_dm(JH7110_AONCLK_APB_FUNC,
+              starfive_clk_mux(priv->reg, "apb_func",
+                               AONOFFSET(JH7110_AONCLK_APB_FUNC), 1,
+                               apb_func_sels,  ARRAY_SIZE(apb_func_sels)));
+       clk_dm(JH7110_AONCLK_GMAC0_AHB,
+              starfive_clk_gate(priv->reg,
+                                "gmac0_ahb", "stg_axiahb",
+                                AONOFFSET(JH7110_AONCLK_GMAC0_AHB)));
+       clk_dm(JH7110_AONCLK_GMAC0_AXI,
+              starfive_clk_gate(priv->reg,
+                                "gmac0_axi", "stg_axiahb",
+                                AONOFFSET(JH7110_AONCLK_GMAC0_AXI)));
+       clk_dm(JH7110_AONCLK_GMAC0_RMII_RTX,
+              starfive_clk_divider(priv->reg,
+                                   "gmac0_rmii_rtx", "gmac0-rmii-refin-clock",
+                                   AONOFFSET(JH7110_AONCLK_GMAC0_RMII_RTX), 5));
+       clk_dm(JH7110_AONCLK_GMAC0_TX,
+              starfive_clk_composite(priv->reg,
+                                     "gmac0_tx", gmac0_tx_sels,
+                                     ARRAY_SIZE(gmac0_tx_sels),
+                                     AONOFFSET(JH7110_AONCLK_GMAC0_TX), 1, 1, 0));
+       clk_dm(JH7110_AONCLK_GMAC0_TX_INV,
+              starfive_clk_inv(priv->reg,
+                               "gmac0_tx_inv", "gmac0_tx",
+                               AONOFFSET(JH7110_AONCLK_GMAC0_TX_INV)));
+       clk_dm(JH7110_AONCLK_OTPC_APB,
+              starfive_clk_gate(priv->reg,
+                                "otpc_apb", "apb_bus",
+                                AONOFFSET(JH7110_AONCLK_OTPC_APB)));
+
+       return 0;
+}
+
+static int jh7110_stgcrg_init(struct udevice *dev)
+{
+       struct jh7110_clk_priv *priv = dev_get_priv(dev);
+
+       clk_dm(JH7110_STGCLK_USB_APB,
+              starfive_clk_gate(priv->reg,
+                                "usb_apb", "apb_bus",
+                                STGOFFSET(JH7110_STGCLK_USB_APB)));
+       clk_dm(JH7110_STGCLK_USB_UTMI_APB,
+              starfive_clk_gate(priv->reg,
+                                "usb_utmi_apb", "apb_bus",
+                                STGOFFSET(JH7110_STGCLK_USB_UTMI_APB)));
+       clk_dm(JH7110_STGCLK_USB_AXI,
+              starfive_clk_gate(priv->reg,
+                                "usb_axi", "stg_axiahb",
+                                STGOFFSET(JH7110_STGCLK_USB_AXI)));
+       clk_dm(JH7110_STGCLK_USB_LPM,
+              starfive_clk_gate_divider(priv->reg,
+                                        "usb_lpm", "oscillator",
+                                        STGOFFSET(JH7110_STGCLK_USB_LPM), 2));
+       clk_dm(JH7110_STGCLK_USB_STB,
+              starfive_clk_gate_divider(priv->reg,
+                                        "usb_stb", "oscillator",
+                                        STGOFFSET(JH7110_STGCLK_USB_STB), 3));
+       clk_dm(JH7110_STGCLK_USB_APP_125,
+              starfive_clk_gate(priv->reg,
+                                "usb_app_125", "usb_125m",
+                                STGOFFSET(JH7110_STGCLK_USB_APP_125)));
+       clk_dm(JH7110_STGCLK_USB_REFCLK,
+              starfive_clk_divider(priv->reg, "usb_refclk", "oscillator",
+                                   STGOFFSET(JH7110_STGCLK_USB_REFCLK), 2));
+       clk_dm(JH7110_STGCLK_PCIE0_AXI,
+              starfive_clk_gate(priv->reg,
+                                "pcie0_axi", "stg_axiahb",
+                                STGOFFSET(JH7110_STGCLK_PCIE0_AXI)));
+       clk_dm(JH7110_STGCLK_PCIE0_APB,
+              starfive_clk_gate(priv->reg,
+                                "pcie0_apb", "apb_bus",
+                                STGOFFSET(JH7110_STGCLK_PCIE0_APB)));
+       clk_dm(JH7110_STGCLK_PCIE0_TL,
+              starfive_clk_gate(priv->reg,
+                                "pcie0_tl", "stg_axiahb",
+                                STGOFFSET(JH7110_STGCLK_PCIE0_TL)));
+       clk_dm(JH7110_STGCLK_PCIE1_AXI,
+              starfive_clk_gate(priv->reg,
+                                "pcie1_axi", "stg_axiahb",
+                                STGOFFSET(JH7110_STGCLK_PCIE1_AXI)));
+       clk_dm(JH7110_STGCLK_PCIE1_APB,
+              starfive_clk_gate(priv->reg,
+                                "pcie1_apb", "apb_bus",
+                                STGOFFSET(JH7110_STGCLK_PCIE1_APB)));
+       clk_dm(JH7110_STGCLK_PCIE1_TL,
+              starfive_clk_gate(priv->reg,
+                                "pcie1_tl", "stg_axiahb",
+                                STGOFFSET(JH7110_STGCLK_PCIE1_TL)));
+
+       return 0;
+}
+
+static int jh7110_clk_probe(struct udevice *dev)
+{
+       struct jh7110_clk_priv *priv = dev_get_priv(dev);
+
+       priv->init = (jh1710_init_fn)dev_get_driver_data(dev);
+       priv->reg =  (void __iomem *)dev_read_addr_ptr(dev);
+
+       if (priv->init)
+               return priv->init(dev);
+
+       return 0;
+}
+
+static int jh7110_clk_bind(struct udevice *dev)
+{
+       /* The reset driver does not have a device node, so bind it here */
+       return device_bind_driver_to_node(dev, "jh7110_reset", dev->name,
+                                                       dev_ofnode(dev), NULL);
+}
+
+static const struct udevice_id jh7110_clk_of_match[] = {
+       { .compatible = "starfive,jh7110-syscrg",
+         .data = (ulong)&jh7110_syscrg_init
+       },
+       { .compatible = "starfive,jh7110-stgcrg",
+         .data = (ulong)&jh7110_stgcrg_init
+       },
+       { .compatible = "starfive,jh7110-aoncrg",
+         .data = (ulong)&jh7110_aoncrg_init
+       },
+       { }
+};
+
+U_BOOT_DRIVER(jh7110_clk) = {
+       .name = "jh7110_clk",
+       .id = UCLASS_CLK,
+       .of_match = jh7110_clk_of_match,
+       .probe = jh7110_clk_probe,
+       .ops = &ccf_clk_ops,
+       .priv_auto = sizeof(struct jh7110_clk_priv),
+       .bind           = jh7110_clk_bind,
+};
diff --git a/drivers/clk/starfive/clk.h b/drivers/clk/starfive/clk.h
new file mode 100644 (file)
index 0000000..4dee12f
--- /dev/null
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (C) 2022 Starfive, Inc.
+ * Author:     Yanhong Wang <yanhong.wang@starfivetech.com>
+ *
+ */
+
+#ifndef __CLK_STARFIVE_H
+#define __CLK_STARFIVE_H
+
+enum starfive_pll_type {
+       PLL0 = 0,
+       PLL1,
+       PLL2,
+       PLL_MAX = PLL2
+};
+
+struct starfive_pllx_rate {
+       u64 rate;
+       u32 prediv;
+       u32 fbdiv;
+       u32 frac;
+};
+
+struct starfive_pllx_offset {
+       u32 pd;
+       u32 prediv;
+       u32 fbdiv;
+       u32 frac;
+       u32 postdiv1;
+       u32 dacpd;
+       u32 dsmpd;
+       u32 pd_mask;
+       u32 prediv_mask;
+       u32 fbdiv_mask;
+       u32 frac_mask;
+       u32 postdiv1_mask;
+       u32 dacpd_mask;
+       u32 dsmpd_mask;
+};
+
+struct starfive_pllx_clk {
+       enum starfive_pll_type type;
+       const struct starfive_pllx_offset *offset;
+       const struct starfive_pllx_rate *rate_table;
+       int rate_count;
+       int flags;
+};
+
+extern struct starfive_pllx_clk starfive_jh7110_pll0;
+extern struct starfive_pllx_clk starfive_jh7110_pll1;
+extern struct starfive_pllx_clk starfive_jh7110_pll2;
+
+struct clk *starfive_jh7110_pll(const char *name, const char *parent_name,
+                               void __iomem *base, void __iomem *sysreg,
+                               const struct starfive_pllx_clk *pll_clk);
+#endif