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/*
* Copyright (c) 2013, Steffen Trumtrar <s.trumtrar@pengutronix.de>
*
* based on drivers/clk/tegra/clk.h
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
*/
#ifndef __SOCFPGA_CLK_H
#define __SOCFPGA_CLK_H
#include <linux/clk-provider.h>
#include <linux/clkdev.h>
/* Clock Manager offsets */
#define CLKMGR_CTRL 0x0
#define CLKMGR_BYPASS 0x4
#define CLKMGR_L4SRC 0x70
#define CLKMGR_PERPLL_SRC 0xAC
#define SOCFPGA_MAX_PARENTS 3
#define div_mask(width) ((1 << (width)) - 1)
extern void __iomem *clk_mgr_base_addr;
void __init socfpga_pll_init(struct device_node *node);
void __init socfpga_periph_init(struct device_node *node);
void __init socfpga_gate_init(struct device_node *node);
struct socfpga_pll {
struct clk_gate hw;
};
struct socfpga_gate_clk {
struct clk_gate hw;
char *parent_name;
u32 fixed_div;
void __iomem *div_reg;
u32 width; /* only valid if div_reg != 0 */
u32 shift; /* only valid if div_reg != 0 */
u32 clk_phase[2];
};
struct socfpga_periph_clk {
struct clk_gate hw;
char *parent_name;
u32 fixed_div;
void __iomem *div_reg;
u32 width; /* only valid if div_reg != 0 */
u32 shift; /* only valid if div_reg != 0 */
};
#endif /* SOCFPGA_CLK_H */
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