1 files changed, 265 insertions, 0 deletions
diff --git a/drivers/clk/qcom/apss-ipq5424.c b/drivers/clk/qcom/apss-ipq5424.c
new file mode 100644
index 000000000000..4c67f722e009
--- /dev/null
+++ b/drivers/clk/qcom/apss-ipq5424.c
@@ -0,0 +1,265 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2018, The Linux Foundation. All rights reserved.
+ * Copyright (c) 2025, Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/interconnect-provider.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include <dt-bindings/arm/qcom,ids.h>
+#include <dt-bindings/clock/qcom,apss-ipq.h>
+#include <dt-bindings/interconnect/qcom,ipq5424.h>
+
+#include "clk-alpha-pll.h"
+#include "clk-branch.h"
+#include "clk-rcg.h"
+#include "clk-regmap.h"
+#include "common.h"
+
+enum {
+	DT_XO,
+	DT_CLK_REF,
+};
+
+enum {
+	P_XO,
+	P_GPLL0,
+	P_APSS_PLL_EARLY,
+	P_L3_PLL,
+};
+
+struct apss_clk {
+	struct notifier_block cpu_clk_notifier;
+	struct clk_hw *hw;
+	struct device *dev;
+	struct clk *l3_clk;
+};
+
+static const struct alpha_pll_config apss_pll_config = {
+	.l = 0x3b,
+	.config_ctl_val = 0x08200920,
+	.config_ctl_hi_val = 0x05008001,
+	.config_ctl_hi1_val = 0x04000000,
+	.user_ctl_val = 0xf,
+};
+
+static struct clk_alpha_pll ipq5424_apss_pll = {
+	.offset = 0x0,
+	.config = &apss_pll_config,
+	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_HUAYRA_2290],
+	.flags = SUPPORTS_DYNAMIC_UPDATE,
+	.clkr = {
+		.enable_reg = 0x0,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data){
+			.name = "apss_pll",
+			.parent_data = &(const struct clk_parent_data) {
+				.index = DT_XO,
+			},
+			.num_parents = 1,
+			.ops = &clk_alpha_pll_huayra_ops,
+		},
+	},
+};
+
+static const struct clk_parent_data parents_apss_silver_clk_src[] = {
+	{ .index = DT_XO },
+	{ .index = DT_CLK_REF },
+	{ .hw = &ipq5424_apss_pll.clkr.hw },
+};
+
+static const struct parent_map parents_apss_silver_clk_src_map[] = {
+	{ P_XO, 0 },
+	{ P_GPLL0, 4 },
+	{ P_APSS_PLL_EARLY, 5 },
+};
+
+static const struct freq_tbl ftbl_apss_clk_src[] = {
+	F(816000000, P_APSS_PLL_EARLY, 1, 0, 0),
+	F(1416000000, P_APSS_PLL_EARLY, 1, 0, 0),
+	F(1800000000, P_APSS_PLL_EARLY, 1, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 apss_silver_clk_src = {
+	.cmd_rcgr = 0x0080,
+	.freq_tbl = ftbl_apss_clk_src,
+	.hid_width = 5,
+	.parent_map = parents_apss_silver_clk_src_map,
+	.clkr.hw.init = &(struct clk_init_data) {
+		.name = "apss_silver_clk_src",
+		.parent_data = parents_apss_silver_clk_src,
+		.num_parents = ARRAY_SIZE(parents_apss_silver_clk_src),
+		.ops = &clk_rcg2_ops,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_branch apss_silver_core_clk = {
+	.halt_reg = 0x008c,
+	.clkr = {
+		.enable_reg = 0x008c,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data) {
+			.name = "apss_silver_core_clk",
+			.parent_hws = (const struct clk_hw *[]) {
+				&apss_silver_clk_src.clkr.hw
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static const struct alpha_pll_config l3_pll_config = {
+	.l = 0x29,
+	.config_ctl_val = 0x08200920,
+	.config_ctl_hi_val = 0x05008001,
+	.config_ctl_hi1_val = 0x04000000,
+	.user_ctl_val = 0xf,
+};
+
+static struct clk_alpha_pll ipq5424_l3_pll = {
+	.offset = 0x10000,
+	.config = &l3_pll_config,
+	.regs = clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_HUAYRA_2290],
+	.flags = SUPPORTS_DYNAMIC_UPDATE,
+	.clkr = {
+		.enable_reg = 0x0,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data) {
+			.name = "l3_pll",
+			.parent_data = &(const struct clk_parent_data) {
+				.index = DT_XO,
+			},
+			.num_parents = 1,
+			.ops = &clk_alpha_pll_huayra_ops,
+		},
+	},
+};
+
+static const struct clk_parent_data parents_l3_clk_src[] = {
+	{ .index = DT_XO },
+	{ .index = DT_CLK_REF },
+	{ .hw = &ipq5424_l3_pll.clkr.hw },
+};
+
+static const struct parent_map parents_l3_clk_src_map[] = {
+	{ P_XO, 0 },
+	{ P_GPLL0, 4 },
+	{ P_L3_PLL, 5 },
+};
+
+static const struct freq_tbl ftbl_l3_clk_src[] = {
+	F(816000000, P_L3_PLL, 1, 0, 0),
+	F(984000000, P_L3_PLL, 1, 0, 0),
+	F(1272000000, P_L3_PLL, 1, 0, 0),
+	{ }
+};
+
+static struct clk_rcg2 l3_clk_src = {
+	.cmd_rcgr = 0x10080,
+	.freq_tbl = ftbl_l3_clk_src,
+	.hid_width = 5,
+	.parent_map = parents_l3_clk_src_map,
+	.clkr.hw.init = &(struct clk_init_data) {
+		.name = "l3_clk_src",
+		.parent_data = parents_l3_clk_src,
+		.num_parents = ARRAY_SIZE(parents_l3_clk_src),
+		.ops = &clk_rcg2_ops,
+		.flags = CLK_SET_RATE_PARENT,
+	},
+};
+
+static struct clk_branch l3_core_clk = {
+	.halt_reg = 0x1008c,
+	.clkr = {
+		.enable_reg = 0x1008c,
+		.enable_mask = BIT(0),
+		.hw.init = &(struct clk_init_data) {
+			.name = "l3_clk",
+			.parent_hws = (const struct clk_hw *[]) {
+				&l3_clk_src.clkr.hw
+			},
+			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT | CLK_IS_CRITICAL,
+			.ops = &clk_branch2_ops,
+		},
+	},
+};
+
+static const struct regmap_config apss_ipq5424_regmap_config = {
+	.reg_bits       = 32,
+	.reg_stride     = 4,
+	.val_bits       = 32,
+	.max_register   = 0x20000,
+	.fast_io        = true,
+};
+
+static struct clk_regmap *apss_ipq5424_clks[] = {
+	[APSS_PLL_EARLY] = &ipq5424_apss_pll.clkr,
+	[APSS_SILVER_CLK_SRC] = &apss_silver_clk_src.clkr,
+	[APSS_SILVER_CORE_CLK] = &apss_silver_core_clk.clkr,
+	[L3_PLL] = &ipq5424_l3_pll.clkr,
+	[L3_CLK_SRC] = &l3_clk_src.clkr,
+	[L3_CORE_CLK] = &l3_core_clk.clkr,
+};
+
+static struct clk_alpha_pll *ipa5424_apss_plls[] = {
+	&ipq5424_l3_pll,
+	&ipq5424_apss_pll,
+};
+
+static struct qcom_cc_driver_data ipa5424_apss_driver_data = {
+	.alpha_plls = ipa5424_apss_plls,
+	.num_alpha_plls = ARRAY_SIZE(ipa5424_apss_plls),
+};
+
+#define IPQ_APPS_PLL_ID			(5424 * 3)	/* some unique value */
+
+static const struct qcom_icc_hws_data icc_ipq5424_cpu_l3[] = {
+	{ MASTER_CPU, SLAVE_L3, L3_CORE_CLK },
+};
+
+static const struct qcom_cc_desc apss_ipq5424_desc = {
+	.config = &apss_ipq5424_regmap_config,
+	.clks = apss_ipq5424_clks,
+	.num_clks = ARRAY_SIZE(apss_ipq5424_clks),
+	.icc_hws = icc_ipq5424_cpu_l3,
+	.num_icc_hws = ARRAY_SIZE(icc_ipq5424_cpu_l3),
+	.icc_first_node_id = IPQ_APPS_PLL_ID,
+	.driver_data = &ipa5424_apss_driver_data,
+};
+
+static int apss_ipq5424_probe(struct platform_device *pdev)
+{
+	return qcom_cc_probe(pdev, &apss_ipq5424_desc);
+}
+
+static const struct of_device_id apss_ipq5424_match_table[] = {
+	{ .compatible = "qcom,ipq5424-apss-clk" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, apss_ipq5424_match_table);
+
+static struct platform_driver apss_ipq5424_driver = {
+	.probe = apss_ipq5424_probe,
+	.driver = {
+		.name   = "apss-ipq5424-clk",
+		.of_match_table = apss_ipq5424_match_table,
+		.sync_state = icc_sync_state,
+	},
+};
+
+module_platform_driver(apss_ipq5424_driver);
+
+MODULE_DESCRIPTION("QCOM APSS IPQ5424 CLK Driver");
+MODULE_LICENSE("GPL");