1 files changed, 152 insertions, 0 deletions
diff --git a/drivers/clk/renesas/r9a09g056-cpg.c b/drivers/clk/renesas/r9a09g056-cpg.c
new file mode 100644
index 000000000000..e2712a25c43a
--- /dev/null
+++ b/drivers/clk/renesas/r9a09g056-cpg.c
@@ -0,0 +1,152 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Renesas RZ/V2N CPG driver
+ *
+ * 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/renesas,r9a09g056-cpg.h>
+
+#include "rzv2h-cpg.h"
+
+enum clk_ids {
+	/* Core Clock Outputs exported to DT */
+	LAST_DT_CORE_CLK = R9A09G056_GBETH_1_CLK_PTP_REF_I,
+
+	/* External Input Clocks */
+	CLK_AUDIO_EXTAL,
+	CLK_RTXIN,
+	CLK_QEXTAL,
+
+	/* PLL Clocks */
+	CLK_PLLCM33,
+	CLK_PLLCLN,
+	CLK_PLLDTY,
+	CLK_PLLCA55,
+
+	/* Internal Core Clocks */
+	CLK_PLLCM33_DIV16,
+	CLK_PLLCLN_DIV2,
+	CLK_PLLCLN_DIV8,
+	CLK_PLLDTY_ACPU,
+	CLK_PLLDTY_ACPU_DIV4,
+
+	/* Module Clocks */
+	MOD_CLK_BASE,
+};
+
+static const struct clk_div_table dtable_1_8[] = {
+	{0, 1},
+	{1, 2},
+	{2, 4},
+	{3, 8},
+	{0, 0},
+};
+
+static const struct clk_div_table dtable_2_64[] = {
+	{0, 2},
+	{1, 4},
+	{2, 8},
+	{3, 16},
+	{4, 64},
+	{0, 0},
+};
+
+static const struct cpg_core_clk r9a09g056_core_clks[] __initconst = {
+	/* External Clock Inputs */
+	DEF_INPUT("audio_extal", CLK_AUDIO_EXTAL),
+	DEF_INPUT("rtxin", CLK_RTXIN),
+	DEF_INPUT("qextal", CLK_QEXTAL),
+
+	/* PLL Clocks */
+	DEF_FIXED(".pllcm33", CLK_PLLCM33, CLK_QEXTAL, 200, 3),
+	DEF_FIXED(".pllcln", CLK_PLLCLN, CLK_QEXTAL, 200, 3),
+	DEF_FIXED(".plldty", CLK_PLLDTY, CLK_QEXTAL, 200, 3),
+	DEF_PLL(".pllca55", CLK_PLLCA55, CLK_QEXTAL, PLLCA55),
+
+	/* Internal Core Clocks */
+	DEF_FIXED(".pllcm33_div16", CLK_PLLCM33_DIV16, CLK_PLLCM33, 1, 16),
+
+	DEF_FIXED(".pllcln_div2", CLK_PLLCLN_DIV2, CLK_PLLCLN, 1, 2),
+	DEF_FIXED(".pllcln_div8", CLK_PLLCLN_DIV8, CLK_PLLCLN, 1, 8),
+
+	DEF_DDIV(".plldty_acpu", CLK_PLLDTY_ACPU, CLK_PLLDTY, CDDIV0_DIVCTL2, dtable_2_64),
+	DEF_FIXED(".plldty_acpu_div4", CLK_PLLDTY_ACPU_DIV4, CLK_PLLDTY_ACPU, 1, 4),
+
+	/* Core Clocks */
+	DEF_FIXED("sys_0_pclk", R9A09G056_SYS_0_PCLK, CLK_QEXTAL, 1, 1),
+	DEF_DDIV("ca55_0_coreclk0", R9A09G056_CA55_0_CORE_CLK0, CLK_PLLCA55,
+		 CDDIV1_DIVCTL0, dtable_1_8),
+	DEF_DDIV("ca55_0_coreclk1", R9A09G056_CA55_0_CORE_CLK1, CLK_PLLCA55,
+		 CDDIV1_DIVCTL1, dtable_1_8),
+	DEF_DDIV("ca55_0_coreclk2", R9A09G056_CA55_0_CORE_CLK2, CLK_PLLCA55,
+		 CDDIV1_DIVCTL2, dtable_1_8),
+	DEF_DDIV("ca55_0_coreclk3", R9A09G056_CA55_0_CORE_CLK3, CLK_PLLCA55,
+		 CDDIV1_DIVCTL3, dtable_1_8),
+	DEF_FIXED("iotop_0_shclk", R9A09G056_IOTOP_0_SHCLK, CLK_PLLCM33_DIV16, 1, 1),
+};
+
+static const struct rzv2h_mod_clk r9a09g056_mod_clks[] __initconst = {
+	DEF_MOD_CRITICAL("gic_0_gicclk",	CLK_PLLDTY_ACPU_DIV4, 1, 3, 0, 19,
+						BUS_MSTOP(3, BIT(5))),
+	DEF_MOD("scif_0_clk_pck",		CLK_PLLCM33_DIV16, 8, 15, 4, 15,
+						BUS_MSTOP(3, BIT(14))),
+	DEF_MOD("sdhi_0_imclk",			CLK_PLLCLN_DIV8, 10, 3, 5, 3,
+						BUS_MSTOP(8, BIT(2))),
+	DEF_MOD("sdhi_0_imclk2",		CLK_PLLCLN_DIV8, 10, 4, 5, 4,
+						BUS_MSTOP(8, BIT(2))),
+	DEF_MOD("sdhi_0_clk_hs",		CLK_PLLCLN_DIV2, 10, 5, 5, 5,
+						BUS_MSTOP(8, BIT(2))),
+	DEF_MOD("sdhi_0_aclk",			CLK_PLLDTY_ACPU_DIV4, 10, 6, 5, 6,
+						BUS_MSTOP(8, BIT(2))),
+	DEF_MOD("sdhi_1_imclk",			CLK_PLLCLN_DIV8, 10, 7, 5, 7,
+						BUS_MSTOP(8, BIT(3))),
+	DEF_MOD("sdhi_1_imclk2",		CLK_PLLCLN_DIV8, 10, 8, 5, 8,
+						BUS_MSTOP(8, BIT(3))),
+	DEF_MOD("sdhi_1_clk_hs",		CLK_PLLCLN_DIV2, 10, 9, 5, 9,
+						BUS_MSTOP(8, BIT(3))),
+	DEF_MOD("sdhi_1_aclk",			CLK_PLLDTY_ACPU_DIV4, 10, 10, 5, 10,
+						BUS_MSTOP(8, BIT(3))),
+	DEF_MOD("sdhi_2_imclk",			CLK_PLLCLN_DIV8, 10, 11, 5, 11,
+						BUS_MSTOP(8, BIT(4))),
+	DEF_MOD("sdhi_2_imclk2",		CLK_PLLCLN_DIV8, 10, 12, 5, 12,
+						BUS_MSTOP(8, BIT(4))),
+	DEF_MOD("sdhi_2_clk_hs",		CLK_PLLCLN_DIV2, 10, 13, 5, 13,
+						BUS_MSTOP(8, BIT(4))),
+	DEF_MOD("sdhi_2_aclk",			CLK_PLLDTY_ACPU_DIV4, 10, 14, 5, 14,
+						BUS_MSTOP(8, BIT(4))),
+};
+
+static const struct rzv2h_reset r9a09g056_resets[] __initconst = {
+	DEF_RST(3, 0, 1, 1),		/* SYS_0_PRESETN */
+	DEF_RST(3, 8, 1, 9),		/* GIC_0_GICRESET_N */
+	DEF_RST(3, 9, 1, 10),		/* GIC_0_DBG_GICRESET_N */
+	DEF_RST(9, 5, 4, 6),		/* SCIF_0_RST_SYSTEM_N */
+	DEF_RST(10, 7, 4, 24),		/* SDHI_0_IXRST */
+	DEF_RST(10, 8, 4, 25),		/* SDHI_1_IXRST */
+	DEF_RST(10, 9, 4, 26),		/* SDHI_2_IXRST */
+};
+
+const struct rzv2h_cpg_info r9a09g056_cpg_info __initconst = {
+	/* Core Clocks */
+	.core_clks = r9a09g056_core_clks,
+	.num_core_clks = ARRAY_SIZE(r9a09g056_core_clks),
+	.last_dt_core_clk = LAST_DT_CORE_CLK,
+	.num_total_core_clks = MOD_CLK_BASE,
+
+	/* Module Clocks */
+	.mod_clks = r9a09g056_mod_clks,
+	.num_mod_clks = ARRAY_SIZE(r9a09g056_mod_clks),
+	.num_hw_mod_clks = 25 * 16,
+
+	/* Resets */
+	.resets = r9a09g056_resets,
+	.num_resets = ARRAY_SIZE(r9a09g056_resets),
+
+	.num_mstop_bits = 192,
+};