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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Marvell EBU SoC common clock handling4 *5 * Copyright (C) 2012 Marvell6 *7 * Gregory CLEMENT <gregory.clement@free-electrons.com>8 * Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>9 * Andrew Lunn <andrew@lunn.ch>10 *11 */12 13#ifndef __CLK_MVEBU_COMMON_H_14#define __CLK_MVEBU_COMMON_H_15 16#include <linux/kernel.h>17 18extern spinlock_t ctrl_gating_lock;19 20struct device_node;21 22struct coreclk_ratio {23	int id;24	const char *name;25};26 27struct coreclk_soc_desc {28	u32 (*get_tclk_freq)(void __iomem *sar);29	u32 (*get_cpu_freq)(void __iomem *sar);30	void (*get_clk_ratio)(void __iomem *sar, int id, int *mult, int *div);31	u32 (*get_refclk_freq)(void __iomem *sar);32	bool (*is_sscg_enabled)(void __iomem *sar);33	u32 (*fix_sscg_deviation)(u32 system_clk);34	const struct coreclk_ratio *ratios;35	int num_ratios;36};37 38struct clk_gating_soc_desc {39	const char *name;40	const char *parent;41	int bit_idx;42	unsigned long flags;43};44 45void __init mvebu_coreclk_setup(struct device_node *np,46				const struct coreclk_soc_desc *desc);47 48void __init mvebu_clk_gating_setup(struct device_node *np,49				   const struct clk_gating_soc_desc *desc);50 51/*52 * This function is shared among the Kirkwood, Armada 370, Armada XP53 * and Armada 375 SoC54 */55u32 kirkwood_fix_sscg_deviation(u32 system_clk);56#endif57