u-boot/drivers/clk/uniphier/clk-uniphier.h
Masahiro Yamada 805dc44cc8 clk: uniphier: rework UniPhier clk driver
The initial design of the UniPhier clk driver for U-Boot was not
very nice.  Here is a re-work to sync it with Linux's clk and reset
drivers, maximizing the code reuse from Linux's clk data.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2016-10-18 14:06:46 +09:00

55 lines
1.1 KiB
C

/*
* Copyright (C) 2016 Socionext Inc.
* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __CLK_UNIPHIER_H__
#define __CLK_UNIPHIER_H__
#include <linux/kernel.h>
#define UNIPHIER_CLK_MAX_NR_MUXS 8
struct uniphier_clk_gate_data {
unsigned int id;
unsigned int reg;
unsigned int bit;
};
struct uniphier_clk_mux_data {
unsigned int id;
unsigned int nr_muxs;
unsigned int reg;
unsigned int masks[UNIPHIER_CLK_MAX_NR_MUXS];
unsigned int vals[UNIPHIER_CLK_MAX_NR_MUXS];
unsigned long rates[UNIPHIER_CLK_MAX_NR_MUXS];
};
struct uniphier_clk_data {
const struct uniphier_clk_gate_data *gate;
const struct uniphier_clk_mux_data *mux;
};
#define UNIPHIER_CLK_ID_END (unsigned int)(-1)
#define UNIPHIER_CLK_END \
{ .id = UNIPHIER_CLK_ID_END }
#define UNIPHIER_CLK_GATE(_id, _reg, _bit) \
{ \
.id = (_id), \
.reg = (_reg), \
.bit = (_bit), \
}
#define UNIPHIER_CLK_FIXED_RATE(_id, _rate) \
{ \
.id = (_id), \
.rates = {(_reg),}, \
}
extern const struct uniphier_clk_data uniphier_mio_clk_data;
#endif /* __CLK_UNIPHIER_H__ */