diff --git a/drivers/clk/renesas/Kconfig b/drivers/clk/renesas/Kconfig
index ff01f5f0ed20..58ea50b0e5b8 100644
--- a/drivers/clk/renesas/Kconfig
+++ b/drivers/clk/renesas/Kconfig
@@ -41,6 +41,7 @@ config CLK_RENESAS
 	select CLK_R9A08G045 if ARCH_R9A08G045
 	select CLK_R9A09G011 if ARCH_R9A09G011
 	select CLK_R9A09G057 if ARCH_R9A09G057
+	select CLK_R9A09G077 if ARCH_R9A09G077
 	select CLK_SH73A0 if ARCH_SH73A0
 
 if CLK_RENESAS
@@ -198,6 +199,10 @@ config CLK_R9A09G057
        bool "RZ/V2H(P) clock support" if COMPILE_TEST
        select CLK_RZV2H
 
+config CLK_R9A09G077
+	bool "RZ/T2H clock support" if COMPILE_TEST
+	select CLK_RZT2H
+
 config CLK_SH73A0
 	bool "SH-Mobile AG5 clock support" if COMPILE_TEST
 	select CLK_RENESAS_CPG_MSTP
diff --git a/drivers/clk/renesas/Makefile b/drivers/clk/renesas/Makefile
index 82efaa835ac7..61c95d0e3f7a 100644
--- a/drivers/clk/renesas/Makefile
+++ b/drivers/clk/renesas/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_CLK_R8A779A0)		+= r8a779a0-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A779F0)		+= r8a779f0-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A779G0)		+= r8a779g0-cpg-mssr.o
 obj-$(CONFIG_CLK_R8A779H0)		+= r8a779h0-cpg-mssr.o
+obj-$(CONFIG_CLK_R9A09G077)		+= r9a09g077-cpg-mssr.o
 obj-$(CONFIG_CLK_R9A06G032)		+= r9a06g032-clocks.o
 obj-$(CONFIG_CLK_R9A07G043)		+= r9a07g043-cpg.o
 obj-$(CONFIG_CLK_R9A07G044)		+= r9a07g044-cpg.o
diff --git a/drivers/clk/renesas/r9a09g077-cpg-mssr.c b/drivers/clk/renesas/r9a09g077-cpg-mssr.c
new file mode 100644
index 000000000000..62a5fb115393
--- /dev/null
+++ b/drivers/clk/renesas/r9a09g077-cpg-mssr.c
@@ -0,0 +1,237 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * r9a09g077 Clock Pulse Generator / Module Standby and Software Reset
+ *
+ * Copyright (C) 2025 Renesas Electronics Corp.
+ *
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include <dt-bindings/clock/r9a09g077-cpg-mssr.h>
+#include "renesas-cpg-mssr.h"
+
+#define SCKCR		0x00
+#define SCKCR2		0x04
+#define SCKCR3		0x08
+#define SCKCR4		0x0C
+#define PMSEL		0x10
+#define PMSEL_PLL0	BIT(0)
+#define PMSEL_PLL2	BIT(2)
+#define PMSEL_PLL3	BIT(3)
+#define PLL0EN		BIT(0)
+#define PLL2EN		BIT(0)
+#define PLL3EN		BIT(0)
+#define PLL0MON		0x20
+#define PLL0EN_REG	0x30
+#define PLL0_SSC_CTR	0x34
+#define PLL1MON		0x40
+#define LOCOCR		0x70
+#define HIZCTRLEN	0x80
+#define PLL2MON		0x90
+#define PLL2EN_REG	0xA0
+#define PLL2_SSC_CTR	0xAC
+#define PLL3MON		0xB0
+#define PLL3EN_REG	0xC0
+#define PLL3_VCO_CTR0	0xC4
+#define PLL3_VCO_CTR1	0xC8
+#define PLL4MON		0xD0
+#define PHYSEL		BIT(21)
+
+#define MRCTLA		0x240
+#define MRCTLE		0x250
+#define MRCTLI		0x260
+#define MRCTLM		0x270
+
+#define DDIV_PACK(offset, bitpos, size) \
+		(((offset) << 20) | ((bitpos) << 12) | ((size) << 8))
+
+#define DIVCA55		DDIV_PACK(SCKCR2, 8, 4)
+#define DIVCA55S	DDIV_PACK(SCKCR2, 12, 1)
+#define DIVCR520	DDIV_PACK(SCKCR2, 2, 2)
+#define DIVCR521	DDIV_PACK(SCKCR2, 0, 2)
+#define DIVLCDC		DDIV_PACK(SCKCR3, 20, 3)
+#define DIVCKIO		DDIV_PACK(SCKCR, 16, 3)
+#define DIVETHPHY	DDIV_PACK(SCKCR, 21, 1)
+#define DIVCANFD	DDIV_PACK(SCKCR, 20, 1)
+#define DIVSPI0		DDIV_PACK(SCKCR3, 0, 2)
+#define DIVSPI1		DDIV_PACK(SCKCR3, 2, 2)
+#define DIVSPI2		DDIV_PACK(SCKCR3, 4, 2)
+#define DIVSPI3		DDIV_PACK(SCKCR2, 16, 2)
+
+#define SEL_PLL_PACK(offset, bitpos, size) \
+	(((offset) << 20) | ((bitpos) << 12) | ((size) << 8))
+
+#define	SEL_PLL		SEL_PLL_PACK(SCKCR, 22, 1)
+
+#define GET_SHIFT(val)		FIELD_GET(GENMASK(19, 12), val)
+#define GET_WIDTH(val)		FIELD_GET(GENMASK(11, 8), val)
+#define GET_REG_OFFSET(val)	FIELD_GET(GENMASK(31, 20), val)
+
+enum clk_ids {
+	/* Core Clock Outputs exported to DT */
+	LAST_DT_CORE_CLK = R9A09G077_LCDC_CLKD,
+
+	/* External Input Clocks */
+	CLK_EXTAL,
+	CLK_LOCO,
+
+	/* Internal Core Clocks */
+	CLK_PLL0,
+	CLK_PLL1,
+	CLK_PLL2,
+	CLK_PLL3,
+	CLK_PLL4,
+	CLK_SEL_PLL0,
+	CLK_SEL_CLK_PLL0,
+	CLK_SEL_PLL1,
+	CLK_SEL_CLK_PLL1,
+	CLK_SEL_PLL2,
+	CLK_SEL_CLK_PLL2,
+	CLK_SEL_PLL4,
+	CLK_SEL_CLK_PLL4,
+	CLK_SEL_CLK_SRC,
+	CLK_SEL_EXTAL,
+	CLK_SEL_LOCO,
+	CLK_PLL3_INPUT,
+
+	/* Module Clocks */
+	MOD_CLK_BASE,
+};
+
+static const struct clk_div_table dtable_1_2[] = {
+	{0, 2},
+	{15, 1},
+	{0, 0},
+};
+
+/* Mux clock tables */
+static const char * const sel_clk_pll0[] = { ".sel_loco", ".sel_pll0" };
+static const char * const sel_clk_pll1[] = { ".sel_loco", ".sel_pll1" };
+static const char * const sel_clk_pll4[] = { ".sel_loco", ".sel_pll4" };
+
+static const struct cpg_core_clk r9a09g077_core_clks[] __initconst = {
+	/* External Clock Inputs */
+	DEF_INPUT("extal", CLK_EXTAL),
+	DEF_INPUT("loco", CLK_LOCO),
+
+	/* Internal Core Clocks */
+	DEF_FIXED(".pll0", CLK_PLL0, CLK_EXTAL, 48, 1),
+	DEF_FIXED(".pll1", CLK_PLL1, CLK_EXTAL, 40, 1),
+	DEF_FIXED(".pll4", CLK_PLL4, CLK_EXTAL, 96, 1),
+	DEF_FIXED(".sel_pll0", CLK_SEL_PLL0, CLK_PLL0, 1, 1),
+	DEF_MUX(".sel_clk_pll0", CLK_SEL_CLK_PLL0, SEL_PLL,
+		sel_clk_pll0, ARRAY_SIZE(sel_clk_pll0), 0, CLK_MUX_READ_ONLY),
+	DEF_FIXED(".sel_pll1", CLK_SEL_PLL1, CLK_PLL1, 1, 1),
+	DEF_MUX(".sel_clk_pll1", CLK_SEL_CLK_PLL1, SEL_PLL,
+		sel_clk_pll1, ARRAY_SIZE(sel_clk_pll1), 0, CLK_MUX_READ_ONLY),
+	DEF_FIXED(".sel_pll4", CLK_SEL_PLL4, CLK_PLL4, 1, 1),
+	DEF_MUX(".sel_clk_pll4", CLK_SEL_CLK_PLL4, SEL_PLL,
+		sel_clk_pll4, ARRAY_SIZE(sel_clk_pll4), 0, CLK_MUX_READ_ONLY),
+
+	/* Core output clk */
+	DEF_DIV("CA55", R9A09G077_CA55, CLK_SEL_CLK_PLL0, DIVCA55,
+		dtable_1_2, CLK_DIVIDER_HIWORD_MASK, 1),
+	DEF_FIXED("PCLKM", R9A09G077_PCLKM, CLK_SEL_CLK_PLL1, 1, 8),
+	DEF_FIXED("PCLKGPTL", R9A09G077_PCLKGPTL, CLK_SEL_CLK_PLL1, 1, 2),
+};
+
+static const struct mssr_mod_clk r9a09g077_mod_clks[] __initconst = {
+	DEF_MOD("sci0", 108, R9A09G077_PCLKM),
+};
+
+static struct clk * __init
+r9a09g077_cpg_div_clk_register(struct device *dev,
+			       const struct cpg_core_clk *core,
+			       void __iomem *base,
+			       struct cpg_mssr_pub *pub)
+{
+	const struct clk *parent;
+	const char *parent_name;
+	struct clk_hw *clk_hw;
+
+	parent = pub->clks[core->parent];
+
+	if (IS_ERR(parent))
+		return ERR_CAST(parent);
+
+	parent_name = __clk_get_name(parent);
+
+	if (core->dtable)
+		clk_hw = clk_hw_register_divider_table(dev, core->name,
+						       parent_name, 0,
+						       base + GET_REG_OFFSET(core->conf),
+						       GET_SHIFT(core->conf),
+						       GET_WIDTH(core->conf),
+						       core->flag,
+						       core->dtable,
+						       &pub->rmw_lock);
+	else
+		clk_hw = clk_hw_register_divider(dev, core->name,
+						 parent_name, 0,
+						 base + GET_REG_OFFSET(core->conf),
+						 GET_SHIFT(core->conf),
+						 GET_WIDTH(core->conf),
+						 core->flag, &pub->rmw_lock);
+
+	if (IS_ERR(clk_hw))
+		return ERR_CAST(clk_hw);
+
+	return clk_hw->clk;
+
+}
+
+static struct clk * __init
+r9a09g077_cpg_mux_clk_register(struct device *dev,
+			       const struct cpg_core_clk *core,
+			       void __iomem *base,
+			       struct cpg_mssr_pub *pub)
+{
+	struct clk_hw *clk_hw;
+
+	clk_hw = devm_clk_hw_register_mux(dev, core->name,
+					  core->parent_names, core->num_parents,
+					  core->flag,
+					  base + GET_REG_OFFSET(core->conf),
+					  GET_SHIFT(core->conf),
+					  GET_WIDTH(core->conf),
+					  core->mux_flags, &pub->rmw_lock);
+	return clk_hw->clk;
+}
+
+static struct clk * __init
+	r9a09g077_cpg_clk_register(struct device *dev,
+				   const struct cpg_core_clk *core,
+				   const struct cpg_mssr_info *info,
+				   struct cpg_mssr_pub *pub)
+{
+	void __iomem *base = core->sel_base ? pub->base1 : pub->base0;
+
+	switch (core->type) {
+	case CLK_TYPE_DIV:
+		return r9a09g077_cpg_div_clk_register(dev, core, base, pub);
+	case CLK_TYPE_MUX:
+		return r9a09g077_cpg_mux_clk_register(dev, core, base, pub);
+	default:
+		return ERR_PTR(-EINVAL);
+	}
+}
+
+const struct cpg_mssr_info r9a09g077_cpg_mssr_info = {
+	/* Core Clocks */
+	.core_clks = r9a09g077_core_clks,
+	.num_core_clks = ARRAY_SIZE(r9a09g077_core_clks),
+	.last_dt_core_clk = LAST_DT_CORE_CLK,
+	.num_total_core_clks = MOD_CLK_BASE,
+
+	/* Module Clocks */
+	.mod_clks = r9a09g077_mod_clks,
+	.num_mod_clks = ARRAY_SIZE(r9a09g077_mod_clks),
+	.num_hw_mod_clks = 12 * 32,
+
+	.reg_layout = CLK_REG_LAYOUT_RZ_T2H,
+	.cpg_clk_register = r9a09g077_cpg_clk_register,
+};
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.c b/drivers/clk/renesas/renesas-cpg-mssr.c
index 7d5fba3aef19..2f5aa796b0c6 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.c
+++ b/drivers/clk/renesas/renesas-cpg-mssr.c
@@ -79,6 +79,15 @@ static const u16 mstpcr_for_gen4[] = {
 	0x2D60, 0x2D64, 0x2D68, 0x2D6C, 0x2D70, 0x2D74,
 };
 
+/* Module Stop Control Register (RZ/T2H)
+ * RZ/T2H has 2 registers blocks. To differentiate them,
+ * 0x1000 is added to offsets of block 2
+ */
+static const u16 mstpcr_for_rzt2h[] = {
+	0x0300, 0x0304, 0x0308, 0x030C, 0x0310, 0x1318, 0x1320, 0x0324,
+	0x0328, 0x032C, 0x0303, 0x1334,
+};
+
 /*
  * Standby Control Register offsets (RZ/A)
  * Base address is FRQCR register
@@ -189,6 +198,14 @@ struct mstp_clock {
 
 #define to_mstp_clock(_hw) container_of(_hw, struct mstp_clock, hw)
 
+static void *cpg_rzt2h_addr_from_offset(struct clk_hw *hw, u16 offset)
+{
+	struct mstp_clock *clock = to_mstp_clock(hw);
+	struct cpg_mssr_priv *priv = clock->priv;
+
+	return offset + (offset > 0x1000 ? priv->pub.base1 - 0x1000 : priv->pub.base0);
+}
+
 static int cpg_mstp_clock_endisable(struct clk_hw *hw, bool enable)
 {
 	struct mstp_clock *clock = to_mstp_clock(hw);
@@ -260,6 +277,12 @@ static int cpg_mstp_clock_is_enabled(struct clk_hw *hw)
 
 	if (priv->reg_layout == CLK_REG_LAYOUT_RZ_A)
 		value = readb(priv->pub.base0 + priv->control_regs[reg]);
+	else if (priv->reg_layout == CLK_REG_LAYOUT_RZ_T2H) {
+		void __iomem *addr =
+			cpg_rzt2h_addr_from_offset(hw,
+						   priv->control_regs[reg]);
+		value = readw(addr);
+	}
 	else
 		value = readl(priv->pub.base0 + priv->status_regs[reg]);
 
@@ -875,6 +898,12 @@ static const struct of_device_id cpg_mssr_match[] = {
 		.compatible = "renesas,r8a779h0-cpg-mssr",
 		.data = &r8a779h0_cpg_mssr_info,
 	},
+#endif
+#ifdef CONFIG_CLK_R9A09G077
+	{
+		.compatible = "renesas,r9a09g077-cpg-mssr",
+		.data = &r9a09g077_cpg_mssr_info,
+	},
 #endif
 	{ /* sentinel */ }
 };
@@ -1072,6 +1101,13 @@ static int __init cpg_mssr_common_init(struct device *dev,
 		error = -ENOMEM;
 		goto out_err;
 	}
+	if (info->reg_layout == CLK_REG_LAYOUT_RZ_T2H) {
+		priv->pub.base1 = of_iomap(np, 1);
+		if (!priv->pub.base1) {
+			error = -ENOMEM;
+			goto out_err;
+		}
+	}
 
 	priv->num_core_clks = info->num_total_core_clks;
 	priv->num_mod_clks = info->num_hw_mod_clks;
@@ -1085,6 +1121,8 @@ static int __init cpg_mssr_common_init(struct device *dev,
 		priv->reset_clear_regs = srstclr;
 	} else if (priv->reg_layout == CLK_REG_LAYOUT_RZ_A) {
 		priv->control_regs = stbcr;
+	} else if (priv->reg_layout == CLK_REG_LAYOUT_RZ_T2H) {
+		priv->control_regs = mstpcr_for_rzt2h;
 	} else if (priv->reg_layout == CLK_REG_LAYOUT_RCAR_GEN4) {
 		priv->status_regs = mstpsr_for_gen4;
 		priv->control_regs = mstpcr_for_gen4;
@@ -1115,6 +1153,8 @@ static int __init cpg_mssr_common_init(struct device *dev,
 out_err:
 	if (priv->pub.base0)
 		iounmap(priv->pub.base0);
+	if (priv->pub.base1)
+		iounmap(priv->pub.base1);
 	kfree(priv);
 
 	return error;
diff --git a/drivers/clk/renesas/renesas-cpg-mssr.h b/drivers/clk/renesas/renesas-cpg-mssr.h
index adc8948e6af4..a6e4a96ba036 100644
--- a/drivers/clk/renesas/renesas-cpg-mssr.h
+++ b/drivers/clk/renesas/renesas-cpg-mssr.h
@@ -22,6 +22,8 @@
 struct cpg_core_clk {
 	/* Common */
 	const char *name;
+	const char * const *parent_names;
+	const struct clk_div_table *dtable;
 	unsigned int id;
 	unsigned int type;
 	/* Depending on type */
@@ -29,18 +31,26 @@ struct cpg_core_clk {
 	unsigned int div;
 	unsigned int mult;
 	unsigned int offset;
+	unsigned int conf;
+	int flag;
+	int mux_flags;
+	int num_parents;
+	int sel_base;
+};
 
 /**
  * struct cpg_mssr_pub - Private data shared with
  * device-specific clk registration code
  *
  * @base0: CPG/MSSR register block base0 address
+ * @base1: CPG/MSSR register block base1 address
  * @rmw_lock: protects RMW register accesses
  * @notifiers: Notifier chain to save/restore clock state for system resume
  * @clks: pointer to clocks
  */
 struct cpg_mssr_pub {
 	void __iomem *base0;
+	void __iomem *base1;
 	struct raw_notifier_head notifiers;
 	spinlock_t rmw_lock;
 	struct clk **clks;
@@ -53,6 +63,8 @@ enum clk_types {
 	CLK_TYPE_DIV6P1,	/* DIV6 Clock with 1 parent clock */
 	CLK_TYPE_DIV6_RO,	/* DIV6 Clock read only with extra divisor */
 	CLK_TYPE_FR,		/* Fixed Rate Clock */
+	CLK_TYPE_DIV,		/* Clock with divider */
+	CLK_TYPE_MUX,		/* Clock with clock source selector */
 
 	/* Custom definitions start here */
 	CLK_TYPE_CUSTOM,
@@ -73,6 +85,15 @@ enum clk_types {
 	DEF_BASE(_name, _id, CLK_TYPE_DIV6_RO, _parent, .offset = _offset, .div = _div, .mult = 1)
 #define DEF_RATE(_name, _id, _rate)	\
 	DEF_TYPE(_name, _id, CLK_TYPE_FR, .mult = _rate)
+#define DEF_DIV(_name, _id, _parent, _conf, _dtable, _flag, _sel_base) \
+	DEF_TYPE(_name, _id, CLK_TYPE_DIV, .conf = _conf, \
+		 .parent = _parent, .dtable = _dtable, .flag = _flag, .sel_base = _sel_base)
+#define DEF_MUX(_name, _id, _conf, _parent_names, _num_parents, _flag, \
+		_mux_flags) \
+	DEF_TYPE(_name, _id, CLK_TYPE_MUX, .conf = _conf, \
+		 .parent_names = _parent_names, .num_parents = _num_parents, \
+		 .flag = _flag, .mux_flags = _mux_flags)
+
 
     /*
      * Definitions of Module Clocks
@@ -106,6 +127,7 @@ enum clk_reg_layout {
 	CLK_REG_LAYOUT_RCAR_GEN2_AND_GEN3 = 0,
 	CLK_REG_LAYOUT_RZ_A,
 	CLK_REG_LAYOUT_RCAR_GEN4,
+	CLK_REG_LAYOUT_RZ_T2H,
 };
 
     /**
@@ -198,6 +220,7 @@ extern const struct cpg_mssr_info r8a779a0_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a779f0_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a779g0_cpg_mssr_info;
 extern const struct cpg_mssr_info r8a779h0_cpg_mssr_info;
+extern const struct cpg_mssr_info r9a09g077_cpg_mssr_info;
 
 void __init cpg_mssr_early_init(struct device_node *np,
 				const struct cpg_mssr_info *info);
