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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2018 Synopsys, Inc. All rights reserved.
* Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
*/
#ifndef __BOARD_CLK_LIB_H
#define __BOARD_CLK_LIB_H
#include <common.h>
#include <linux/bitops.h>
enum clk_ctl_ops {
CLK_SET = BIT(0), /* set frequency */
CLK_GET = BIT(1), /* get frequency */
CLK_ON = BIT(2), /* enable clock */
CLK_OFF = BIT(3), /* disable clock */
CLK_PRINT = BIT(4), /* print frequency */
CLK_MHZ = BIT(5) /* all values in MHZ instead of HZ */
};
/*
* Depending on the clk_ctl_ops enable / disable /
* set clock rate from 'rate' argument / read clock to 'rate' argument /
* print clock rate. If CLK_MHZ flag set in clk_ctl_ops 'rate' is in MHz,
* otherwise - in Hz.
*
* This function expects "clk-fmeas" node in device tree:
* / {
* clk-fmeas {
* clocks = <&cpu_pll>, <&sys_pll>;
* clock-names = "cpu-pll", "sys-pll";
* };
* };
*/
int soc_clk_ctl(const char *name, ulong *rate, enum clk_ctl_ops ctl);
#endif /* __BOARD_CLK_LIB_H */
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