Message-ID: <20231106085554.3237511-4-xianwei.zhao@amlogic.com>
Date:   Mon, 6 Nov 2023 16:55:53 +0800
From:   Xianwei Zhao <xianwei.zhao@...ogic.com>
To:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-amlogic@...ts.infradead.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     Neil Armstrong <neil.armstrong@...aro.org>,
        Jerome Brunet <jbrunet@...libre.com>,
        Michael Turquette <mturquette@...libre.com>,
        "Stephen Boyd" <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Chuan Liu <chuan.liu@...ogic.com>,
        Xianwei Zhao <xianwei.zhao@...ogic.com>
Subject: [PATCH V6 3/4] clk: meson: c3: add support for the C3 SoC PLL clock

Add the C3 PLL clock controller driver for the Amlogic C3 SoC family.

Co-developed-by: Chuan Liu <chuan.liu@...ogic.com>
Signed-off-by: Chuan Liu <chuan.liu@...ogic.com>
Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
---
 drivers/clk/meson/Kconfig  |  13 +
 drivers/clk/meson/Makefile |   1 +
 drivers/clk/meson/c3-pll.c | 895 +++++++++++++++++++++++++++++++++++++
 3 files changed, 909 insertions(+)
 create mode 100644 drivers/clk/meson/c3-pll.c

diff --git a/drivers/clk/meson/Kconfig b/drivers/clk/meson/Kconfig
index c5303e4c1604..eab796f3d25b 100644
--- a/drivers/clk/meson/Kconfig
+++ b/drivers/clk/meson/Kconfig
@@ -128,6 +128,19 @@ config COMMON_CLK_A1_PERIPHERALS
 	  device, A1 SoC Family. Say Y if you want A1 Peripherals clock
 	  controller to work.
 
+config COMMON_CLK_C3_PLL
+	tristate "Amlogic C3 PLL clock controller"
+	depends on ARM64
+	default y
+	select COMMON_CLK_MESON_REGMAP
+	select COMMON_CLK_MESON_PLL
+	select COMMON_CLK_MESON_CLKC_UTILS
+	help
+	  Support for the PLL clock controller on Amlogic C302X and C308L devices,
+	  AKA c3. Amlogic C302X and C308L devices include AW402 and the others.
+	  Say Y if you want the board to work, because PLLs are the parent of most
+	  peripherals.
+
 config COMMON_CLK_G12A
 	tristate "G12 and SM1 SoC clock controllers support"
 	depends on ARM64
diff --git a/drivers/clk/meson/Makefile b/drivers/clk/meson/Makefile
index 9ee4b954c896..4420af628b31 100644
--- a/drivers/clk/meson/Makefile
+++ b/drivers/clk/meson/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_COMMON_CLK_AXG) += axg.o axg-aoclk.o
 obj-$(CONFIG_COMMON_CLK_AXG_AUDIO) += axg-audio.o
 obj-$(CONFIG_COMMON_CLK_A1_PLL) += a1-pll.o
 obj-$(CONFIG_COMMON_CLK_A1_PERIPHERALS) += a1-peripherals.o
+obj-$(CONFIG_COMMON_CLK_C3_PLL) += c3-pll.o
 obj-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o
 obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o
 obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o
diff --git a/drivers/clk/meson/c3-pll.c b/drivers/clk/meson/c3-pll.c
new file mode 100644
index 000000000000..b663666e3755
--- /dev/null
+++ b/drivers/clk/meson/c3-pll.c
@@ -0,0 +1,895 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Amlogic C3 PLL Controller Driver
+ *
+ * Copyright (c) 2023 Amlogic, inc.
+ * Author: Chuan Liu <chuan.liu@...ogic.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include "clk-regmap.h"
+#include "clk-pll.h"
+#include "meson-clkc-utils.h"
+#include <dt-bindings/clock/amlogic,c3-pll-clkc.h>
+
+#define ANACTRL_FIXPLL_CTRL0			0x40
+#define ANACTRL_FIXPLL_CTRL4			0x50
+#define ANACTRL_GP0PLL_CTRL0			0x80
+#define ANACTRL_GP0PLL_CTRL1			0x84
+#define ANACTRL_GP0PLL_CTRL2			0x88
+#define ANACTRL_GP0PLL_CTRL3			0x8c
+#define ANACTRL_GP0PLL_CTRL4			0x90
+#define ANACTRL_GP0PLL_CTRL5			0x94
+#define ANACTRL_GP0PLL_CTRL6			0x98
+#define ANACTRL_GP0PLL_STS			0x9c
+#define ANACTRL_GP1PLL_CTRL0			0xc0
+#define ANACTRL_GP1PLL_CTRL1			0xc4
+#define ANACTRL_GP1PLL_CTRL2			0xc8
+#define ANACTRL_GP1PLL_CTRL3			0xcc
+#define ANACTRL_GP1PLL_CTRL4			0xd0
+#define ANACTRL_GP1PLL_CTRL5			0xd4
+#define ANACTRL_GP1PLL_CTRL6			0xd8
+#define ANACTRL_GP1PLL_STS			0xdc
+#define ANACTRL_HIFIPLL_CTRL0			0x100
+#define ANACTRL_HIFIPLL_CTRL1			0x104
+#define ANACTRL_HIFIPLL_CTRL2			0x108
+#define ANACTRL_HIFIPLL_CTRL3			0x10c
+#define ANACTRL_HIFIPLL_CTRL4			0x110
+#define ANACTRL_HIFIPLL_CTRL5			0x114
+#define ANACTRL_HIFIPLL_CTRL6			0x118
+#define ANACTRL_HIFIPLL_STS			0x11c
+#define ANACTRL_MPLL_CTRL0			0x180
+#define ANACTRL_MPLL_CTRL1			0x184
+#define ANACTRL_MPLL_CTRL2			0x188
+#define ANACTRL_MPLL_CTRL3			0x18c
+#define ANACTRL_MPLL_CTRL4			0x190
+#define ANACTRL_MPLL_STS			0x1a4
+
+/*
+ * These clock are a fixed value (fixed_pll is 2GHz) that is initialized by ROMcode.
+ * The chip was changed fixed pll for security reasons. Fixed PLL registers are not writable
+ * in the kernel phase. Write of fixed PLL-related register will cause the system to crash.
+ * Meanwhile, these clock won't ever change at runtime.
+ * For the above reasons, we can only use ro_ops for fixed PLL related clocks.
+ */
+static struct clk_regmap fixed_pll_dco = {
+	.data = &(struct meson_clk_pll_data) {
+		.en = {
+			.reg_off = ANACTRL_FIXPLL_CTRL0,
+			.shift   = 28,
+			.width   = 1,
+		},
+		.m = {
+			.reg_off = ANACTRL_FIXPLL_CTRL0,
+			.shift   = 0,
+			.width   = 8,
+		},
+		.n = {
+			.reg_off = ANACTRL_FIXPLL_CTRL0,
+			.shift   = 16,
+			.width   = 5,
+		},
+		.l = {
+			.reg_off = ANACTRL_FIXPLL_CTRL0,
+			.shift   = 31,
+			.width   = 1,
+		},
+		.rst = {
+			.reg_off = ANACTRL_FIXPLL_CTRL0,
+			.shift   = 29,
+			.width   = 1,
+		},
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fixed_pll_dco",
+		.ops = &meson_clk_pll_ro_ops,
+		.parent_data = &(const struct clk_parent_data) {
+			.fw_name = "top",
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap fixed_pll = {
+	.data = &(struct clk_regmap_div_data) {
+		.offset = ANACTRL_FIXPLL_CTRL0,
+		.shift = 12,
+		.width = 3,
+		.flags = CLK_DIVIDER_POWER_OF_TWO,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fixed_pll",
+		.ops = &clk_regmap_divider_ro_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fixed_pll_dco.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap fclk_50m_en = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_FIXPLL_CTRL4,
+		.bit_idx = 0,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_50m_en",
+		.ops = &clk_regmap_gate_ro_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fixed_pll.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_fixed_factor fclk_50m = {
+	.mult = 1,
+	.div = 40,
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_50m",
+		.ops = &clk_fixed_factor_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_50m_en.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_fixed_factor fclk_div2_div = {
+	.mult = 1,
+	.div = 2,
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div2_div",
+		.ops = &clk_fixed_factor_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fixed_pll.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap fclk_div2 = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_FIXPLL_CTRL4,
+		.bit_idx = 24,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div2",
+		.ops = &clk_regmap_gate_ro_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div2_div.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_fixed_factor fclk_div2p5_div = {
+	.mult = 2,
+	.div = 5,
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div2p5_div",
+		.ops = &clk_fixed_factor_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fixed_pll.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap fclk_div2p5 = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_FIXPLL_CTRL4,
+		.bit_idx = 4,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div2p5",
+		.ops = &clk_regmap_gate_ro_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div2p5_div.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_fixed_factor fclk_div3_div = {
+	.mult = 1,
+	.div = 3,
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div3_div",
+		.ops = &clk_fixed_factor_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fixed_pll.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap fclk_div3 = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_FIXPLL_CTRL4,
+		.bit_idx = 20,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div3",
+		.ops = &clk_regmap_gate_ro_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div3_div.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_fixed_factor fclk_div4_div = {
+	.mult = 1,
+	.div = 4,
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div4_div",
+		.ops = &clk_fixed_factor_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fixed_pll.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap fclk_div4 = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_FIXPLL_CTRL4,
+		.bit_idx = 21,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div4",
+		.ops = &clk_regmap_gate_ro_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div4_div.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_fixed_factor fclk_div5_div = {
+	.mult = 1,
+	.div = 5,
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div5_div",
+		.ops = &clk_fixed_factor_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fixed_pll.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap fclk_div5 = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_FIXPLL_CTRL4,
+		.bit_idx = 22,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div5",
+		.ops = &clk_regmap_gate_ro_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div5_div.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_fixed_factor fclk_div7_div = {
+	.mult = 1,
+	.div = 7,
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div7_div",
+		.ops = &clk_fixed_factor_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fixed_pll.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap fclk_div7 = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_FIXPLL_CTRL4,
+		.bit_idx = 23,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fclk_div7",
+		.ops = &clk_regmap_gate_ro_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div7_div.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static const struct reg_sequence c3_gp0_init_regs[] = {
+	{ .reg = ANACTRL_GP0PLL_CTRL2,	.def = 0x0 },
+	{ .reg = ANACTRL_GP0PLL_CTRL3,	.def = 0x48681c00 },
+	{ .reg = ANACTRL_GP0PLL_CTRL4,  .def = 0x88770290 },
+	{ .reg = ANACTRL_GP0PLL_CTRL5,  .def = 0x3927200a },
+	{ .reg = ANACTRL_GP0PLL_CTRL6,	.def = 0x56540000 },
+};
+
+static const struct pll_mult_range c3_gp0_pll_mult_range = {
+	.min = 125,
+	.max = 250,
+};
+
+static struct clk_regmap gp0_pll_dco = {
+	.data = &(struct meson_clk_pll_data) {
+		.en = {
+			.reg_off = ANACTRL_GP0PLL_CTRL0,
+			.shift   = 28,
+			.width   = 1,
+		},
+		.m = {
+			.reg_off = ANACTRL_GP0PLL_CTRL0,
+			.shift   = 0,
+			.width   = 9,
+		},
+		.frac = {
+			.reg_off = ANACTRL_GP0PLL_CTRL1,
+			.shift   = 0,
+			.width   = 19,
+		},
+		.n = {
+			.reg_off = ANACTRL_GP0PLL_CTRL0,
+			.shift   = 10,
+			.width   = 5,
+		},
+		.l = {
+			.reg_off = ANACTRL_GP0PLL_CTRL0,
+			.shift   = 31,
+			.width   = 1,
+		},
+		.rst = {
+			.reg_off = ANACTRL_GP0PLL_CTRL0,
+			.shift   = 29,
+			.width   = 1,
+		},
+		.range = &c3_gp0_pll_mult_range,
+		.init_regs = c3_gp0_init_regs,
+		.init_count = ARRAY_SIZE(c3_gp0_init_regs),
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "gp0_pll_dco",
+		.ops = &meson_clk_pll_ops,
+		.parent_data = &(const struct clk_parent_data) {
+			.fw_name = "top",
+		},
+		.num_parents = 1,
+	},
+};
+
+/* The maximum frequency divider supports is 32, not 128(2^7) */
+static const struct clk_div_table c3_gp0_pll_od_table[] = {
+	{ 0,  1 },
+	{ 1,  2 },
+	{ 2,  4 },
+	{ 3,  8 },
+	{ 4, 16 },
+	{ 5, 32 },
+	{ /* sentinel */ }
+};
+
+static struct clk_regmap gp0_pll = {
+	.data = &(struct clk_regmap_div_data) {
+		.offset = ANACTRL_GP0PLL_CTRL0,
+		.shift = 16,
+		.width = 3,
+		.table = c3_gp0_pll_od_table,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "gp0_pll",
+		.ops = &clk_regmap_divider_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&gp0_pll_dco.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+/*
+ * The register corresponding to gp1_pll has permission restrictions,
+ * The corresponding register is read-only in the kernel.
+ * For the above reasons, we can only use ro_ops for gp1_pll related clocks.
+ */
+static struct clk_regmap gp1_pll_dco = {
+	.data = &(struct meson_clk_pll_data) {
+		.en = {
+			.reg_off = ANACTRL_GP1PLL_CTRL0,
+			.shift   = 28,
+			.width   = 1,
+		},
+		.m = {
+			.reg_off = ANACTRL_GP1PLL_CTRL0,
+			.shift   = 0,
+			.width   = 9,
+		},
+		.frac = {
+			.reg_off = ANACTRL_GP1PLL_CTRL1,
+			.shift   = 0,
+			.width   = 19,
+		},
+		.n = {
+			.reg_off = ANACTRL_GP1PLL_CTRL0,
+			.shift   = 10,
+			.width   = 5,
+		},
+		.l = {
+			.reg_off = ANACTRL_GP1PLL_CTRL0,
+			.shift   = 31,
+			.width   = 1,
+		},
+		.rst = {
+			.reg_off = ANACTRL_GP1PLL_CTRL0,
+			.shift   = 29,
+			.width   = 1,
+		},
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "gp1_pll_dco",
+		.ops = &meson_clk_pll_ro_ops,
+		.parent_data = &(const struct clk_parent_data) {
+			.fw_name = "top",
+		},
+		.num_parents = 1,
+		.flags = CLK_GET_RATE_NOCACHE,
+	},
+};
+
+static struct clk_regmap gp1_pll = {
+	.data = &(struct clk_regmap_div_data) {
+		.offset = ANACTRL_GP1PLL_CTRL0,
+		.shift = 16,
+		.width = 3,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "gp1_pll",
+		.ops = &clk_regmap_divider_ro_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&gp1_pll_dco.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_GET_RATE_NOCACHE,
+	},
+};
+
+static const struct reg_sequence c3_hifi_init_regs[] = {
+	{ .reg = ANACTRL_HIFIPLL_CTRL2,	.def = 0x0 },
+	{ .reg = ANACTRL_HIFIPLL_CTRL3,	.def = 0x6a285c00 },
+	{ .reg = ANACTRL_HIFIPLL_CTRL4, .def = 0x65771290 },
+	{ .reg = ANACTRL_HIFIPLL_CTRL5, .def = 0x3927200a },
+	{ .reg = ANACTRL_HIFIPLL_CTRL6,	.def = 0x56540000 },
+};
+
+static struct clk_regmap hifi_pll_dco = {
+	.data = &(struct meson_clk_pll_data) {
+		.en = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL0,
+			.shift   = 28,
+			.width   = 1,
+		},
+		.m = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL0,
+			.shift   = 0,
+			.width   = 8,
+		},
+		.frac = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL1,
+			.shift   = 0,
+			.width   = 19,
+		},
+		.n = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL0,
+			.shift   = 10,
+			.width   = 5,
+		},
+		.l = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL0,
+			.shift   = 31,
+			.width   = 1,
+		},
+		.rst = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL0,
+			.shift   = 29,
+			.width   = 1,
+		},
+		.range = &c3_gp0_pll_mult_range,
+		.init_regs = c3_hifi_init_regs,
+		.init_count = ARRAY_SIZE(c3_hifi_init_regs),
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "hifi_pll_dco",
+		.ops = &meson_clk_pll_ops,
+		.parent_data = &(const struct clk_parent_data) {
+			.fw_name = "top",
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap hifi_pll = {
+	.data = &(struct clk_regmap_div_data) {
+		.offset = ANACTRL_HIFIPLL_CTRL0,
+		.shift = 16,
+		.width = 2,
+		.flags = CLK_DIVIDER_POWER_OF_TWO,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "hifi_pll",
+		.ops = &clk_regmap_divider_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&hifi_pll_dco.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static const struct reg_sequence c3_mclk_init_regs[] = {
+	{ .reg = ANACTRL_MPLL_CTRL1,	.def = 0x1420500f },
+	{ .reg = ANACTRL_MPLL_CTRL2,	.def = 0x00023041 },
+	{ .reg = ANACTRL_MPLL_CTRL3,	.def = 0x18180000 },
+	{ .reg = ANACTRL_MPLL_CTRL2,	.def = 0x00023001 }
+};
+
+static const struct pll_mult_range c3_mclk_pll_mult_range = {
+	.min = 67,
+	.max = 133,
+};
+
+static struct clk_regmap mclk_pll_dco = {
+	.data = &(struct meson_clk_pll_data) {
+		.en = {
+			.reg_off = ANACTRL_MPLL_CTRL0,
+			.shift   = 28,
+			.width   = 1,
+		},
+		.m = {
+			.reg_off = ANACTRL_MPLL_CTRL0,
+			.shift   = 0,
+			.width   = 8,
+		},
+		.n = {
+			.reg_off = ANACTRL_MPLL_CTRL0,
+			.shift   = 10,
+			.width   = 5,
+		},
+		.l = {
+			.reg_off = ANACTRL_MPLL_CTRL0,
+			.shift   = 31,
+			.width   = 1,
+		},
+		.rst = {
+			.reg_off = ANACTRL_MPLL_CTRL0,
+			.shift   = 29,
+			.width   = 1,
+		},
+		.range = &c3_mclk_pll_mult_range,
+		.init_regs = c3_mclk_init_regs,
+		.init_count = ARRAY_SIZE(c3_mclk_init_regs),
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk_pll_dco",
+		.ops = &meson_clk_pll_ops,
+		.parent_data = &(const struct clk_parent_data) {
+			.fw_name = "mpll",
+		},
+		.num_parents = 1,
+	},
+};
+
+static const struct clk_div_table c3_mpll_od_table[] = {
+	{ 0,  1 },
+	{ 1,  2 },
+	{ 2,  4 },
+	{ 3,  8 },
+	{ 4, 16 },
+	{ /* sentinel */ }
+};
+
+static struct clk_regmap mclk_pll_od = {
+	.data = &(struct clk_regmap_div_data) {
+		.offset = ANACTRL_MPLL_CTRL0,
+		.shift = 12,
+		.width = 3,
+		.table = c3_mpll_od_table,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk_pll_od",
+		.ops = &clk_regmap_divider_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&mclk_pll_dco.hw },
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+/* both value 0 and 1 gives divide the input rate by one */
+static struct clk_regmap mclk_pll = {
+	.data = &(struct clk_regmap_div_data) {
+		.offset = ANACTRL_MPLL_CTRL4,
+		.shift = 16,
+		.width = 5,
+		.flags = CLK_DIVIDER_ONE_BASED | CLK_DIVIDER_ALLOW_ZERO,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk_pll",
+		.ops = &clk_regmap_divider_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&mclk_pll_od.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static const struct clk_parent_data mclk_parent[] = {
+	{ .hw = &mclk_pll.hw },
+	{ .fw_name = "mpll" },
+	{ .hw = &fclk_50m.hw }
+};
+
+static struct clk_regmap mclk0_sel = {
+	.data = &(struct clk_regmap_mux_data) {
+		.offset = ANACTRL_MPLL_CTRL4,
+		.mask = 0x3,
+		.shift = 4,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk0_sel",
+		.ops = &clk_regmap_mux_ops,
+		.parent_data = mclk_parent,
+		.num_parents = ARRAY_SIZE(mclk_parent),
+	},
+};
+
+static struct clk_regmap mclk0_div_en = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_MPLL_CTRL4,
+		.bit_idx = 1,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk0_div_en",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&mclk0_sel.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_regmap mclk0_div = {
+	.data = &(struct clk_regmap_div_data) {
+		.offset = ANACTRL_MPLL_CTRL4,
+		.shift = 2,
+		.width = 1,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk0_div",
+		.ops = &clk_regmap_divider_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&mclk0_div_en.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_regmap mclk0 = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_MPLL_CTRL4,
+		.bit_idx = 0,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk0",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&mclk0_div.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_regmap mclk1_sel = {
+	.data = &(struct clk_regmap_mux_data) {
+		.offset = ANACTRL_MPLL_CTRL4,
+		.mask = 0x3,
+		.shift = 12,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk1_sel",
+		.ops = &clk_regmap_mux_ops,
+		.parent_data = mclk_parent,
+		.num_parents = ARRAY_SIZE(mclk_parent),
+	},
+};
+
+static struct clk_regmap mclk1_div_en = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_MPLL_CTRL4,
+		.bit_idx = 9,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk1_div_en",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&mclk1_sel.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_regmap mclk1_div = {
+	.data = &(struct clk_regmap_div_data) {
+		.offset = ANACTRL_MPLL_CTRL4,
+		.shift = 10,
+		.width = 1,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk1_div",
+		.ops = &clk_regmap_divider_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&mclk1_div_en.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_regmap mclk1 = {
+	.data = &(struct clk_regmap_gate_data) {
+		.offset = ANACTRL_MPLL_CTRL4,
+		.bit_idx = 8,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "mclk1",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&mclk1_div.hw
+		},
+		.num_parents = 1,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_hw *c3_pll_hw_clks[] = {
+	[CLKID_FIXED_PLL_DCO]	= &fixed_pll_dco.hw,
+	[CLKID_FIXED_PLL]	= &fixed_pll.hw,
+	[CLKID_FCLK_50M_EN]	= &fclk_50m_en.hw,
+	[CLKID_FCLK_50M]	= &fclk_50m.hw,
+	[CLKID_FCLK_DIV2_DIV]	= &fclk_div2_div.hw,
+	[CLKID_FCLK_DIV2]	= &fclk_div2.hw,
+	[CLKID_FCLK_DIV2P5_DIV]	= &fclk_div2p5_div.hw,
+	[CLKID_FCLK_DIV2P5]	= &fclk_div2p5.hw,
+	[CLKID_FCLK_DIV3_DIV]	= &fclk_div3_div.hw,
+	[CLKID_FCLK_DIV3]	= &fclk_div3.hw,
+	[CLKID_FCLK_DIV4_DIV]	= &fclk_div4_div.hw,
+	[CLKID_FCLK_DIV4]	= &fclk_div4.hw,
+	[CLKID_FCLK_DIV5_DIV]	= &fclk_div5_div.hw,
+	[CLKID_FCLK_DIV5]	= &fclk_div5.hw,
+	[CLKID_FCLK_DIV7_DIV]	= &fclk_div7_div.hw,
+	[CLKID_FCLK_DIV7]	= &fclk_div7.hw,
+	[CLKID_GP0_PLL_DCO]	= &gp0_pll_dco.hw,
+	[CLKID_GP0_PLL]		= &gp0_pll.hw,
+	[CLKID_GP1_PLL_DCO]	= &gp1_pll_dco.hw,
+	[CLKID_GP1_PLL]		= &gp1_pll.hw,
+	[CLKID_HIFI_PLL_DCO]	= &hifi_pll_dco.hw,
+	[CLKID_HIFI_PLL]	= &hifi_pll.hw,
+	[CLKID_MCLK_PLL_DCO]	= &mclk_pll_dco.hw,
+	[CLKID_MCLK_PLL_OD]	= &mclk_pll_od.hw,
+	[CLKID_MCLK_PLL]	= &mclk_pll.hw,
+	[CLKID_MCLK0_SEL]	= &mclk0_sel.hw,
+	[CLKID_MCLK0_SEL_EN]	= &mclk0_div_en.hw,
+	[CLKID_MCLK0_DIV]	= &mclk0_div.hw,
+	[CLKID_MCLK0]		= &mclk0.hw,
+	[CLKID_MCLK1_SEL]	= &mclk1_sel.hw,
+	[CLKID_MCLK1_SEL_EN]	= &mclk1_div_en.hw,
+	[CLKID_MCLK1_DIV]	= &mclk1_div.hw,
+	[CLKID_MCLK1]		= &mclk1.hw
+};
+
+/* Convenience table to populate regmap in .probe */
+static struct clk_regmap *const c3_pll_clk_regmaps[] = {
+	&fixed_pll_dco,
+	&fixed_pll,
+	&fclk_50m_en,
+	&fclk_div2,
+	&fclk_div2p5,
+	&fclk_div3,
+	&fclk_div4,
+	&fclk_div5,
+	&fclk_div7,
+	&gp0_pll_dco,
+	&gp0_pll,
+	&gp1_pll_dco,
+	&gp1_pll,
+	&hifi_pll_dco,
+	&hifi_pll,
+	&mclk_pll_dco,
+	&mclk_pll_od,
+	&mclk_pll,
+	&mclk0_sel,
+	&mclk0_div_en,
+	&mclk0_div,
+	&mclk0,
+	&mclk1_sel,
+	&mclk1_div_en,
+	&mclk1_div,
+	&mclk1,
+};
+
+static struct regmap_config clkc_regmap_config = {
+	.reg_bits       = 32,
+	.val_bits       = 32,
+	.reg_stride     = 4,
+};
+
+static struct meson_clk_hw_data c3_pll_clks = {
+	.hws = c3_pll_hw_clks,
+	.num = ARRAY_SIZE(c3_pll_hw_clks),
+};
+
+static int aml_c3_pll_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct regmap *regmap;
+	void __iomem *base;
+	int clkid, ret, i;
+
+	base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	regmap = devm_regmap_init_mmio(dev, base, &clkc_regmap_config);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	/* Populate regmap for the regmap backed clocks */
+	for (i = 0; i < ARRAY_SIZE(c3_pll_clk_regmaps); i++)
+		c3_pll_clk_regmaps[i]->map = regmap;
+
+	for (clkid = 0; clkid < c3_pll_clks.num; clkid++) {
+		/* array might be sparse */
+		if (!c3_pll_clks.hws[clkid])
+			continue;
+
+		ret = devm_clk_hw_register(dev, c3_pll_clks.hws[clkid]);
+		if (ret) {
+			dev_err(dev, "Clock registration failed\n");
+			return ret;
+		}
+	}
+
+	return devm_of_clk_add_hw_provider(dev, meson_clk_hw_get,
+					   &c3_pll_clks);
+}
+
+static const struct of_device_id c3_pll_clkc_match_table[] = {
+	{
+		.compatible = "amlogic,c3-pll-clkc",
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(of, c3_pll_clkc_match_table);
+
+static struct platform_driver c3_pll_driver = {
+	.probe		= aml_c3_pll_probe,
+	.driver		= {
+		.name	= "c3-pll-clkc",
+		.of_match_table = c3_pll_clkc_match_table,
+	},
+};
+
+module_platform_driver(c3_pll_driver);
+MODULE_AUTHOR("Chuan Liu <chuan.liu@...ogic.com>");
+MODULE_LICENSE("GPL");
-- 
2.39.2

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