Merge tag 'clk-meson-v6.5-1' of https://github.com/BayLibre/clk-meson into clk-allwinner

Pull Amlogic clk driver updates from Jerome Brunet:

 - Add amlogic a1 SoC family PLL and peripheral clock controller support

* tag 'clk-meson-v6.5-1' of https://github.com/BayLibre/clk-meson:
  clk: meson: a1: add Amlogic A1 Peripherals clock controller driver
  clk: meson: a1: add Amlogic A1 PLL clock controller driver
  clk: meson: introduce new pll power-on sequence for A1 SoC family
  clk: meson: make pll rst bit as optional
  dt-bindings: clock: meson: add A1 Peripherals clock controller bindings
  dt-bindings: clock: meson: add A1 PLL clock controller bindings

Documentation/devicetree/bindings/clock/amlogic,a1-peripherals-clkc.yaml

@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,a1-peripherals-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic A1 Peripherals Clock Control Unit
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+  - Jerome Brunet <jbrunet@baylibre.com>
+  - Jian Hu <jian.hu@jian.hu.com>
+  - Dmitry Rokosov <ddrokosov@sberdevices.ru>
+
+properties:
+  compatible:
+    const: amlogic,a1-peripherals-clkc
+
+  '#clock-cells':
+    const: 1
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: input fixed pll div2
+      - description: input fixed pll div3
+      - description: input fixed pll div5
+      - description: input fixed pll div7
+      - description: input hifi pll
+      - description: input oscillator (usually at 24MHz)
+
+  clock-names:
+    items:
+      - const: fclk_div2
+      - const: fclk_div3
+      - const: fclk_div5
+      - const: fclk_div7
+      - const: hifi_pll
+      - const: xtal
+
+required:
+  - compatible
+  - '#clock-cells'
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/amlogic,a1-pll-clkc.h>
+    apb {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        clock-controller@800 {
+            compatible = "amlogic,a1-peripherals-clkc";
+            reg = <0 0x800 0 0x104>;
+            #clock-cells = <1>;
+            clocks = <&clkc_pll CLKID_FCLK_DIV2>,
+                     <&clkc_pll CLKID_FCLK_DIV3>,
+                     <&clkc_pll CLKID_FCLK_DIV5>,
+                     <&clkc_pll CLKID_FCLK_DIV7>,
+                     <&clkc_pll CLKID_HIFI_PLL>,
+                     <&xtal>;
+            clock-names = "fclk_div2", "fclk_div3",
+                          "fclk_div5", "fclk_div7",
+                          "hifi_pll", "xtal";
+        };
+    };

Documentation/devicetree/bindings/clock/amlogic,a1-pll-clkc.yaml

@@ -0,0 +1,59 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/amlogic,a1-pll-clkc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic A1 PLL Clock Control Unit
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+  - Jerome Brunet <jbrunet@baylibre.com>
+  - Jian Hu <jian.hu@jian.hu.com>
+  - Dmitry Rokosov <ddrokosov@sberdevices.ru>
+
+properties:
+  compatible:
+    const: amlogic,a1-pll-clkc
+
+  '#clock-cells':
+    const: 1
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: input fixpll_in
+      - description: input hifipll_in
+
+  clock-names:
+    items:
+      - const: fixpll_in
+      - const: hifipll_in
+
+required:
+  - compatible
+  - '#clock-cells'
+  - reg
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/amlogic,a1-peripherals-clkc.h>
+    apb {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        clock-controller@7c80 {
+            compatible = "amlogic,a1-pll-clkc";
+            reg = <0 0x7c80 0 0x18c>;
+            #clock-cells = <1>;
+            clocks = <&clkc_periphs CLKID_FIXPLL_IN>,
+                     <&clkc_periphs CLKID_HIFIPLL_IN>;
+            clock-names = "fixpll_in", "hifipll_in";
+        };
+    };

MAINTAINERS

@@ -1888,6 +1888,7 @@ L:	linux-amlogic@lists.infradead.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/clock/amlogic*
 F:	drivers/clk/meson/
+F:	include/dt-bindings/clock/a1*
 F:	include/dt-bindings/clock/gxbb*
 F:	include/dt-bindings/clock/meson*
 

drivers/clk/meson/Kconfig

@@ -99,6 +99,26 @@ config COMMON_CLK_AXG_AUDIO
 	  Support for the audio clock controller on AmLogic A113D devices,
 	  aka axg, Say Y if you want audio subsystem to work.
 
+config COMMON_CLK_A1_PLL
+	tristate "Amlogic A1 SoC PLL controller support"
+	depends on ARM64
+	select COMMON_CLK_MESON_REGMAP
+	select COMMON_CLK_MESON_PLL
+	help
+	  Support for the PLL clock controller on Amlogic A113L based
+	  device, A1 SoC Family. Say Y if you want A1 PLL clock controller
+	  to work.
+
+config COMMON_CLK_A1_PERIPHERALS
+	tristate "Amlogic A1 SoC Peripherals clock controller support"
+	depends on ARM64
+	select COMMON_CLK_MESON_DUALDIV
+	select COMMON_CLK_MESON_REGMAP
+	help
+	  Support for the Peripherals clock controller on Amlogic A113L based
+	  device, A1 SoC Family. Say Y if you want A1 Peripherals clock
+	  controller to work.
+
 config COMMON_CLK_G12A
 	tristate "G12 and SM1 SoC clock controllers support"
 	depends on ARM64

drivers/clk/meson/Makefile

@@ -16,6 +16,8 @@ obj-$(CONFIG_COMMON_CLK_MESON_VID_PLL_DIV) += vid-pll-div.o
 
 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-$(CONFIG_COMMON_CLK_GXBB) += gxbb.o gxbb-aoclk.o
 obj-$(CONFIG_COMMON_CLK_G12A) += g12a.o g12a-aoclk.o
 obj-$(CONFIG_COMMON_CLK_MESON8B) += meson8b.o meson8-ddr.o

drivers/clk/meson/a1-peripherals.h

@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Amlogic A1 Peripherals Clock Controller internals
+ *
+ * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
+ * Author: Jian Hu <jian.hu@amlogic.com>
+ *
+ * Copyright (c) 2023, SberDevices. All Rights Reserved.
+ * Author: Dmitry Rokosov <ddrokosov@sberdevices.ru>
+ */
+
+#ifndef __A1_PERIPHERALS_H
+#define __A1_PERIPHERALS_H
+
+/* peripherals clock controller register offset */
+#define SYS_OSCIN_CTRL		0x0
+#define RTC_BY_OSCIN_CTRL0	0x4
+#define RTC_BY_OSCIN_CTRL1	0x8
+#define RTC_CTRL		0xc
+#define SYS_CLK_CTRL0		0x10
+#define SYS_CLK_EN0		0x1c
+#define SYS_CLK_EN1		0x20
+#define AXI_CLK_EN		0x24
+#define DSPA_CLK_EN		0x28
+#define DSPB_CLK_EN		0x2c
+#define DSPA_CLK_CTRL0		0x30
+#define DSPB_CLK_CTRL0		0x34
+#define CLK12_24_CTRL		0x38
+#define GEN_CLK_CTRL		0x3c
+#define SAR_ADC_CLK_CTRL	0xc0
+#define PWM_CLK_AB_CTRL		0xc4
+#define PWM_CLK_CD_CTRL		0xc8
+#define PWM_CLK_EF_CTRL		0xcc
+#define SPICC_CLK_CTRL		0xd0
+#define TS_CLK_CTRL		0xd4
+#define SPIFC_CLK_CTRL		0xd8
+#define USB_BUSCLK_CTRL		0xdc
+#define SD_EMMC_CLK_CTRL	0xe0
+#define CECA_CLK_CTRL0		0xe4
+#define CECA_CLK_CTRL1		0xe8
+#define CECB_CLK_CTRL0		0xec
+#define CECB_CLK_CTRL1		0xf0
+#define PSRAM_CLK_CTRL		0xf4
+#define DMC_CLK_CTRL		0xf8
+
+/* include the CLKIDs that have been made part of the DT binding */
+#include <dt-bindings/clock/amlogic,a1-peripherals-clkc.h>
+
+/*
+ * CLKID index values for internal clocks
+ *
+ * These indices are entirely contrived and do not map onto the hardware.
+ * It has now been decided to expose everything by default in the DT header:
+ * include/dt-bindings/clock/a1-peripherals-clkc.h.
+ * Only the clocks ids we don't want to expose, such as the internal muxes and
+ * dividers of composite clocks, will remain defined here.
+ */
+#define CLKID_XTAL_IN		0
+#define CLKID_DSPA_SEL		61
+#define CLKID_DSPB_SEL		62
+#define CLKID_SARADC_SEL	74
+#define CLKID_SYS_A_SEL		89
+#define CLKID_SYS_A_DIV		90
+#define CLKID_SYS_A		91
+#define CLKID_SYS_B_SEL		92
+#define CLKID_SYS_B_DIV		93
+#define CLKID_SYS_B		94
+#define CLKID_DSPA_A_DIV	96
+#define CLKID_DSPA_A		97
+#define CLKID_DSPA_B_DIV	99
+#define CLKID_DSPA_B		100
+#define CLKID_DSPB_A_DIV	102
+#define CLKID_DSPB_A		103
+#define CLKID_DSPB_B_DIV	105
+#define CLKID_DSPB_B		106
+#define CLKID_RTC_32K_IN	107
+#define CLKID_RTC_32K_DIV	108
+#define CLKID_RTC_32K_XTAL	109
+#define CLKID_RTC_32K_SEL	110
+#define CLKID_CECB_32K_IN	111
+#define CLKID_CECB_32K_DIV	112
+#define CLKID_CECA_32K_IN	115
+#define CLKID_CECA_32K_DIV	116
+#define CLKID_DIV2_PRE		119
+#define CLKID_24M_DIV2		120
+#define CLKID_GEN_DIV		122
+#define CLKID_SARADC_DIV	123
+#define CLKID_PWM_A_DIV		125
+#define CLKID_PWM_B_DIV		127
+#define CLKID_PWM_C_DIV		129
+#define CLKID_PWM_D_DIV		131
+#define CLKID_PWM_E_DIV		133
+#define CLKID_PWM_F_DIV		135
+#define CLKID_SPICC_SEL		136
+#define CLKID_SPICC_DIV		137
+#define CLKID_SPICC_SEL2	138
+#define CLKID_TS_DIV		139
+#define CLKID_SPIFC_SEL		140
+#define CLKID_SPIFC_DIV		141
+#define CLKID_SPIFC_SEL2	142
+#define CLKID_USB_BUS_SEL	143
+#define CLKID_USB_BUS_DIV	144
+#define CLKID_SD_EMMC_SEL	145
+#define CLKID_SD_EMMC_DIV	146
+#define CLKID_PSRAM_SEL		148
+#define CLKID_PSRAM_DIV		149
+#define CLKID_PSRAM_SEL2	150
+#define CLKID_DMC_SEL		151
+#define CLKID_DMC_DIV		152
+#define CLKID_DMC_SEL2		153
+#define NR_CLKS			154
+
+#endif /* __A1_PERIPHERALS_H */

drivers/clk/meson/a1-pll.c

@@ -0,0 +1,356 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
+ * Author: Jian Hu <jian.hu@amlogic.com>
+ *
+ * Copyright (c) 2023, SberDevices. All Rights Reserved.
+ * Author: Dmitry Rokosov <ddrokosov@sberdevices.ru>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include "a1-pll.h"
+#include "clk-regmap.h"
+
+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   = 10,
+			.width   = 5,
+		},
+		.frac = {
+			.reg_off = ANACTRL_FIXPLL_CTRL1,
+			.shift   = 0,
+			.width   = 19,
+		},
+		.l = {
+			.reg_off = ANACTRL_FIXPLL_STS,
+			.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 = "fixpll_in",
+		},
+		.num_parents = 1,
+	},
+};
+
+static struct clk_regmap fixed_pll = {
+	.data = &(struct clk_regmap_gate_data){
+		.offset = ANACTRL_FIXPLL_CTRL0,
+		.bit_idx = 20,
+	},
+	.hw.init = &(struct clk_init_data) {
+		.name = "fixed_pll",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fixed_pll_dco.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+static const struct pll_mult_range hifi_pll_mult_range = {
+	.min = 32,
+	.max = 64,
+};
+
+static const struct reg_sequence hifi_init_regs[] = {
+	{ .reg = ANACTRL_HIFIPLL_CTRL1, .def = 0x01800000 },
+	{ .reg = ANACTRL_HIFIPLL_CTRL2, .def = 0x00001100 },
+	{ .reg = ANACTRL_HIFIPLL_CTRL3, .def = 0x100a1100 },
+	{ .reg = ANACTRL_HIFIPLL_CTRL4, .def = 0x00302000 },
+	{ .reg = ANACTRL_HIFIPLL_CTRL0, .def = 0x01f18000 },
+};
+
+static struct clk_regmap hifi_pll = {
+	.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,
+		},
+		.n = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL0,
+			.shift   = 10,
+			.width   = 5,
+		},
+		.frac = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL1,
+			.shift   = 0,
+			.width   = 19,
+		},
+		.l = {
+			.reg_off = ANACTRL_HIFIPLL_STS,
+			.shift   = 31,
+			.width   = 1,
+		},
+		.current_en = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL0,
+			.shift   = 26,
+			.width   = 1,
+		},
+		.l_detect = {
+			.reg_off = ANACTRL_HIFIPLL_CTRL2,
+			.shift   = 6,
+			.width   = 1,
+		},
+		.range = &hifi_pll_mult_range,
+		.init_regs = hifi_init_regs,
+		.init_count = ARRAY_SIZE(hifi_init_regs),
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "hifi_pll",
+		.ops = &meson_clk_pll_ops,
+		.parent_data = &(const struct clk_parent_data) {
+			.fw_name = "hifipll_in",
+		},
+		.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_CTRL0,
+		.bit_idx = 21,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "fclk_div2",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div2_div.hw
+		},
+		.num_parents = 1,
+		/*
+		 * This clock is used by DDR clock in BL2 firmware
+		 * and is required by the platform to operate correctly.
+		 * Until the following condition are met, we need this clock to
+		 * be marked as critical:
+		 * a) Mark the clock used by a firmware resource, if possible
+		 * b) CCF has a clock hand-off mechanism to make the sure the
+		 *    clock stays on until the proper driver comes along
+		 */
+		.flags = CLK_IS_CRITICAL,
+	},
+};
+
+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_CTRL0,
+		.bit_idx = 22,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "fclk_div3",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div3_div.hw
+		},
+		.num_parents = 1,
+		/*
+		 * This clock is used by APB bus which is set in boot ROM code
+		 * and is required by the platform to operate correctly.
+		 */
+		.flags = CLK_IS_CRITICAL,
+	},
+};
+
+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_CTRL0,
+		.bit_idx = 23,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "fclk_div5",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div5_div.hw
+		},
+		.num_parents = 1,
+		/*
+		 * This clock is used by AXI bus which setted in Romcode
+		 * and is required by the platform to operate correctly.
+		 */
+		.flags = CLK_IS_CRITICAL,
+	},
+};
+
+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_CTRL0,
+		.bit_idx = 24,
+	},
+	.hw.init = &(struct clk_init_data){
+		.name = "fclk_div7",
+		.ops = &clk_regmap_gate_ops,
+		.parent_hws = (const struct clk_hw *[]) {
+			&fclk_div7_div.hw
+		},
+		.num_parents = 1,
+	},
+};
+
+/* Array of all clocks registered by this provider */
+static struct clk_hw_onecell_data a1_pll_clks = {
+	.hws = {
+		[CLKID_FIXED_PLL_DCO]	= &fixed_pll_dco.hw,
+		[CLKID_FIXED_PLL]	= &fixed_pll.hw,
+		[CLKID_FCLK_DIV2_DIV]	= &fclk_div2_div.hw,
+		[CLKID_FCLK_DIV3_DIV]	= &fclk_div3_div.hw,
+		[CLKID_FCLK_DIV5_DIV]	= &fclk_div5_div.hw,
+		[CLKID_FCLK_DIV7_DIV]	= &fclk_div7_div.hw,
+		[CLKID_FCLK_DIV2]	= &fclk_div2.hw,
+		[CLKID_FCLK_DIV3]	= &fclk_div3.hw,
+		[CLKID_FCLK_DIV5]	= &fclk_div5.hw,
+		[CLKID_FCLK_DIV7]	= &fclk_div7.hw,
+		[CLKID_HIFI_PLL]	= &hifi_pll.hw,
+		[NR_PLL_CLKS]		= NULL,
+	},
+	.num = NR_PLL_CLKS,
+};
+
+static struct clk_regmap *const a1_pll_regmaps[] = {
+	&fixed_pll_dco,
+	&fixed_pll,
+	&fclk_div2,
+	&fclk_div3,
+	&fclk_div5,
+	&fclk_div7,
+	&hifi_pll,
+};
+
+static struct regmap_config a1_pll_regmap_cfg = {
+	.reg_bits   = 32,
+	.val_bits   = 32,
+	.reg_stride = 4,
+};
+
+static int meson_a1_pll_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	void __iomem *base;
+	struct regmap *map;
+	int clkid, i, err;
+
+	base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(base))
+		return dev_err_probe(dev, PTR_ERR(base),
+				     "can't ioremap resource\n");
+
+	map = devm_regmap_init_mmio(dev, base, &a1_pll_regmap_cfg);
+	if (IS_ERR(map))
+		return dev_err_probe(dev, PTR_ERR(map),
+				     "can't init regmap mmio region\n");
+
+	/* Populate regmap for the regmap backed clocks */
+	for (i = 0; i < ARRAY_SIZE(a1_pll_regmaps); i++)
+		a1_pll_regmaps[i]->map = map;
+
+	/* Register clocks */
+	for (clkid = 0; clkid < a1_pll_clks.num; clkid++) {
+		err = devm_clk_hw_register(dev, a1_pll_clks.hws[clkid]);
+		if (err)
+			return dev_err_probe(dev, err,
+					     "clock[%d] registration failed\n",
+					     clkid);
+	}
+
+	return devm_of_clk_add_hw_provider(dev, of_clk_hw_onecell_get,
+					   &a1_pll_clks);
+}
+
+static const struct of_device_id a1_pll_clkc_match_table[] = {
+	{ .compatible = "amlogic,a1-pll-clkc", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, a1_pll_clkc_match_table);
+
+static struct platform_driver a1_pll_clkc_driver = {
+	.probe = meson_a1_pll_probe,
+	.driver = {
+		.name = "a1-pll-clkc",
+		.of_match_table = a1_pll_clkc_match_table,
+	},
+};
+
+module_platform_driver(a1_pll_clkc_driver);
+MODULE_AUTHOR("Jian Hu <jian.hu@amlogic.com>");
+MODULE_AUTHOR("Dmitry Rokosov <ddrokosov@sberdevices.ru>");
+MODULE_LICENSE("GPL");

drivers/clk/meson/a1-pll.h

@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Amlogic A1 PLL Clock Controller internals
+ *
+ * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
+ * Author: Jian Hu <jian.hu@amlogic.com>
+ *
+ * Copyright (c) 2023, SberDevices. All Rights Reserved.
+ * Author: Dmitry Rokosov <ddrokosov@sberdevices.ru>
+ */
+
+#ifndef __A1_PLL_H
+#define __A1_PLL_H
+
+#include "clk-pll.h"
+
+/* PLL register offset */
+#define ANACTRL_FIXPLL_CTRL0	0x0
+#define ANACTRL_FIXPLL_CTRL1	0x4
+#define ANACTRL_FIXPLL_STS	0x14
+#define ANACTRL_HIFIPLL_CTRL0	0xc0
+#define ANACTRL_HIFIPLL_CTRL1	0xc4
+#define ANACTRL_HIFIPLL_CTRL2	0xc8
+#define ANACTRL_HIFIPLL_CTRL3	0xcc
+#define ANACTRL_HIFIPLL_CTRL4	0xd0
+#define ANACTRL_HIFIPLL_STS	0xd4
+
+/* include the CLKIDs that have been made part of the DT binding */
+#include <dt-bindings/clock/amlogic,a1-pll-clkc.h>
+
+/*
+ * CLKID index values for internal clocks
+ *
+ * These indices are entirely contrived and do not map onto the hardware.
+ * It has now been decided to expose everything by default in the DT header:
+ * include/dt-bindings/clock/a1-pll-clkc.h. Only the clocks ids we don't want
+ * to expose, such as the internal muxes and dividers of composite clocks,
+ * will remain defined here.
+ */
+#define CLKID_FIXED_PLL_DCO	0
+#define CLKID_FCLK_DIV2_DIV	2
+#define CLKID_FCLK_DIV3_DIV	3
+#define CLKID_FCLK_DIV5_DIV	4
+#define CLKID_FCLK_DIV7_DIV	5
+#define NR_PLL_CLKS		11
+
+#endif /* __A1_PLL_H */

drivers/clk/meson/clk-pll.c

@@ -295,10 +295,14 @@ static int meson_clk_pll_init(struct clk_hw *hw)
 	struct meson_clk_pll_data *pll = meson_clk_pll_data(clk);
 
 	if (pll->init_count) {
-		meson_parm_write(clk->map, &pll->rst, 1);
+		if (MESON_PARM_APPLICABLE(&pll->rst))
+			meson_parm_write(clk->map, &pll->rst, 1);
+
 		regmap_multi_reg_write(clk->map, pll->init_regs,
 				       pll->init_count);
-		meson_parm_write(clk->map, &pll->rst, 0);
+
+		if (MESON_PARM_APPLICABLE(&pll->rst))
+			meson_parm_write(clk->map, &pll->rst, 0);
 	}
 
 	return 0;
@@ -309,8 +313,11 @@ static int meson_clk_pll_is_enabled(struct clk_hw *hw)
 	struct clk_regmap *clk = to_clk_regmap(hw);
 	struct meson_clk_pll_data *pll = meson_clk_pll_data(clk);
 
-	if (meson_parm_read(clk->map, &pll->rst) ||
-	    !meson_parm_read(clk->map, &pll->en) ||
+	if (MESON_PARM_APPLICABLE(&pll->rst) &&
+	    meson_parm_read(clk->map, &pll->rst))
+		return 0;
+
+	if (!meson_parm_read(clk->map, &pll->en) ||
 	    !meson_parm_read(clk->map, &pll->l))
 		return 0;
 
@@ -341,13 +348,34 @@ static int meson_clk_pll_enable(struct clk_hw *hw)
 		return 0;
 
 	/* Make sure the pll is in reset */
-	meson_parm_write(clk->map, &pll->rst, 1);
+	if (MESON_PARM_APPLICABLE(&pll->rst))
+		meson_parm_write(clk->map, &pll->rst, 1);
 
 	/* Enable the pll */
 	meson_parm_write(clk->map, &pll->en, 1);
 
 	/* Take the pll out reset */
-	meson_parm_write(clk->map, &pll->rst, 0);
+	if (MESON_PARM_APPLICABLE(&pll->rst))
+		meson_parm_write(clk->map, &pll->rst, 0);
+
+	/*
+	 * Compared with the previous SoCs, self-adaption current module
+	 * is newly added for A1, keep the new power-on sequence to enable the
+	 * PLL. The sequence is:
+	 * 1. enable the pll, delay for 10us
+	 * 2. enable the pll self-adaption current module, delay for 40us
+	 * 3. enable the lock detect module
+	 */
+	if (MESON_PARM_APPLICABLE(&pll->current_en)) {
+		usleep_range(10, 20);
+		meson_parm_write(clk->map, &pll->current_en, 1);
+		usleep_range(40, 50);
+	};
+
+	if (MESON_PARM_APPLICABLE(&pll->l_detect)) {
+		meson_parm_write(clk->map, &pll->l_detect, 1);
+		meson_parm_write(clk->map, &pll->l_detect, 0);
+	}
 
 	if (meson_clk_pll_wait_lock(hw))
 		return -EIO;
@@ -361,10 +389,15 @@ static void meson_clk_pll_disable(struct clk_hw *hw)
 	struct meson_clk_pll_data *pll = meson_clk_pll_data(clk);
 
 	/* Put the pll is in reset */
-	meson_parm_write(clk->map, &pll->rst, 1);
+	if (MESON_PARM_APPLICABLE(&pll->rst))
+		meson_parm_write(clk->map, &pll->rst, 1);
 
 	/* Disable the pll */
 	meson_parm_write(clk->map, &pll->en, 0);
+
+	/* Disable PLL internal self-adaption current module */
+	if (MESON_PARM_APPLICABLE(&pll->current_en))
+		meson_parm_write(clk->map, &pll->current_en, 0);
 }
 
 static int meson_clk_pll_set_rate(struct clk_hw *hw, unsigned long rate,

drivers/clk/meson/clk-pll.h

@@ -36,6 +36,8 @@ struct meson_clk_pll_data {
 	struct parm frac;
 	struct parm l;
 	struct parm rst;
+	struct parm current_en;
+	struct parm l_detect;
 	const struct reg_sequence *init_regs;
 	unsigned int init_count;
 	const struct pll_params_table *table;

include/dt-bindings/clock/amlogic,a1-peripherals-clkc.h

@@ -0,0 +1,115 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/*
+ * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
+ * Author: Jian Hu <jian.hu@amlogic.com>
+ *
+ * Copyright (c) 2023, SberDevices. All Rights Reserved.
+ * Author: Dmitry Rokosov <ddrokosov@sberdevices.ru>
+ */
+
+#ifndef __A1_PERIPHERALS_CLKC_H
+#define __A1_PERIPHERALS_CLKC_H
+
+#define CLKID_FIXPLL_IN		1
+#define CLKID_USB_PHY_IN	2
+#define CLKID_USB_CTRL_IN	3
+#define CLKID_HIFIPLL_IN	4
+#define CLKID_SYSPLL_IN		5
+#define CLKID_DDS_IN		6
+#define CLKID_SYS		7
+#define CLKID_CLKTREE		8
+#define CLKID_RESET_CTRL	9
+#define CLKID_ANALOG_CTRL	10
+#define CLKID_PWR_CTRL		11
+#define CLKID_PAD_CTRL		12
+#define CLKID_SYS_CTRL		13
+#define CLKID_TEMP_SENSOR	14
+#define CLKID_AM2AXI_DIV	15
+#define CLKID_SPICC_B		16
+#define CLKID_SPICC_A		17
+#define CLKID_MSR		18
+#define CLKID_AUDIO		19
+#define CLKID_JTAG_CTRL		20
+#define CLKID_SARADC_EN		21
+#define CLKID_PWM_EF		22
+#define CLKID_PWM_CD		23
+#define CLKID_PWM_AB		24
+#define CLKID_CEC		25
+#define CLKID_I2C_S		26
+#define CLKID_IR_CTRL		27
+#define CLKID_I2C_M_D		28
+#define CLKID_I2C_M_C		29
+#define CLKID_I2C_M_B		30
+#define CLKID_I2C_M_A		31
+#define CLKID_ACODEC		32
+#define CLKID_OTP		33
+#define CLKID_SD_EMMC_A		34
+#define CLKID_USB_PHY		35
+#define CLKID_USB_CTRL		36
+#define CLKID_SYS_DSPB		37
+#define CLKID_SYS_DSPA		38
+#define CLKID_DMA		39
+#define CLKID_IRQ_CTRL		40
+#define CLKID_NIC		41
+#define CLKID_GIC		42
+#define CLKID_UART_C		43
+#define CLKID_UART_B		44
+#define CLKID_UART_A		45
+#define CLKID_SYS_PSRAM		46
+#define CLKID_RSA		47
+#define CLKID_CORESIGHT		48
+#define CLKID_AM2AXI_VAD	49
+#define CLKID_AUDIO_VAD		50
+#define CLKID_AXI_DMC		51
+#define CLKID_AXI_PSRAM		52
+#define CLKID_RAMB		53
+#define CLKID_RAMA		54
+#define CLKID_AXI_SPIFC		55
+#define CLKID_AXI_NIC		56
+#define CLKID_AXI_DMA		57
+#define CLKID_CPU_CTRL		58
+#define CLKID_ROM		59
+#define CLKID_PROC_I2C		60
+#define CLKID_DSPA_EN		63
+#define CLKID_DSPA_EN_NIC	64
+#define CLKID_DSPB_EN		65
+#define CLKID_DSPB_EN_NIC	66
+#define CLKID_RTC		67
+#define CLKID_CECA_32K		68
+#define CLKID_CECB_32K		69
+#define CLKID_24M		70
+#define CLKID_12M		71
+#define CLKID_FCLK_DIV2_DIVN	72
+#define CLKID_GEN		73
+#define CLKID_SARADC		75
+#define CLKID_PWM_A		76
+#define CLKID_PWM_B		77
+#define CLKID_PWM_C		78
+#define CLKID_PWM_D		79
+#define CLKID_PWM_E		80
+#define CLKID_PWM_F		81
+#define CLKID_SPICC		82
+#define CLKID_TS		83
+#define CLKID_SPIFC		84
+#define CLKID_USB_BUS		85
+#define CLKID_SD_EMMC		86
+#define CLKID_PSRAM		87
+#define CLKID_DMC		88
+#define CLKID_DSPA_A_SEL	95
+#define CLKID_DSPA_B_SEL	98
+#define CLKID_DSPB_A_SEL	101
+#define CLKID_DSPB_B_SEL	104
+#define CLKID_CECB_32K_SEL_PRE	113
+#define CLKID_CECB_32K_SEL	114
+#define CLKID_CECA_32K_SEL_PRE	117
+#define CLKID_CECA_32K_SEL	118
+#define CLKID_GEN_SEL		121
+#define CLKID_PWM_A_SEL		124
+#define CLKID_PWM_B_SEL		126
+#define CLKID_PWM_C_SEL		128
+#define CLKID_PWM_D_SEL		130
+#define CLKID_PWM_E_SEL		132
+#define CLKID_PWM_F_SEL		134
+#define CLKID_SD_EMMC_SEL2	147
+
+#endif /* __A1_PERIPHERALS_CLKC_H */

include/dt-bindings/clock/amlogic,a1-pll-clkc.h

@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause */
+/*
+ * Copyright (c) 2019 Amlogic, Inc. All rights reserved.
+ * Author: Jian Hu <jian.hu@amlogic.com>
+ *
+ * Copyright (c) 2023, SberDevices. All Rights Reserved.
+ * Author: Dmitry Rokosov <ddrokosov@sberdevices.ru>
+ */
+
+#ifndef __A1_PLL_CLKC_H
+#define __A1_PLL_CLKC_H
+
+#define CLKID_FIXED_PLL		1
+#define CLKID_FCLK_DIV2		6
+#define CLKID_FCLK_DIV3		7
+#define CLKID_FCLK_DIV5		8
+#define CLKID_FCLK_DIV7		9
+#define CLKID_HIFI_PLL		10
+
+#endif /* __A1_PLL_CLKC_H */