| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * Copyright (C) 2016 Socionext Inc. |
| * Author: Masahiro Yamada <yamada.masahiro@socionext.com> |
| */ |
| |
| #ifndef __CLK_UNIPHIER_H__ |
| #define __CLK_UNIPHIER_H__ |
| |
| #include <linux/kernel.h> |
| #include <linux/types.h> |
| |
| #define UNIPHIER_CLK_MUX_MAX_PARENTS 8 |
| |
| #define UNIPHIER_CLK_TYPE_END 0 |
| #define UNIPHIER_CLK_TYPE_FIXED_RATE 2 |
| #define UNIPHIER_CLK_TYPE_GATE 3 |
| #define UNIPHIER_CLK_TYPE_MUX 4 |
| |
| #define UNIPHIER_CLK_ID_INVALID (U8_MAX) |
| |
| struct uniphier_clk_fixed_rate_data { |
| unsigned long fixed_rate; |
| }; |
| |
| struct uniphier_clk_gate_data { |
| u8 parent_id; |
| u16 reg; |
| u8 bit; |
| }; |
| |
| struct uniphier_clk_mux_data { |
| u8 parent_ids[UNIPHIER_CLK_MUX_MAX_PARENTS]; |
| u8 num_parents; |
| u16 reg; |
| u32 masks[UNIPHIER_CLK_MUX_MAX_PARENTS]; |
| u32 vals[UNIPHIER_CLK_MUX_MAX_PARENTS]; |
| }; |
| |
| struct uniphier_clk_data { |
| u8 type; |
| u8 id; |
| union { |
| struct uniphier_clk_fixed_rate_data rate; |
| struct uniphier_clk_gate_data gate; |
| struct uniphier_clk_mux_data mux; |
| } data; |
| }; |
| |
| #define UNIPHIER_CLK_RATE(_id, _rate) \ |
| { \ |
| .type = UNIPHIER_CLK_TYPE_FIXED_RATE, \ |
| .id = (_id), \ |
| .data.rate = { \ |
| .fixed_rate = (_rate), \ |
| }, \ |
| } |
| |
| #define UNIPHIER_CLK_GATE(_id, _parent, _reg, _bit) \ |
| { \ |
| .type = UNIPHIER_CLK_TYPE_GATE, \ |
| .id = (_id), \ |
| .data.gate = { \ |
| .parent_id = (_parent), \ |
| .reg = (_reg), \ |
| .bit = (_bit), \ |
| }, \ |
| } |
| |
| #define UNIPHIER_CLK_GATE_SIMPLE(_id, _reg, _bit) \ |
| UNIPHIER_CLK_GATE(_id, UNIPHIER_CLK_ID_INVALID, _reg, _bit) |
| |
| extern const struct uniphier_clk_data uniphier_pxs2_sys_clk_data[]; |
| extern const struct uniphier_clk_data uniphier_ld20_sys_clk_data[]; |
| extern const struct uniphier_clk_data uniphier_pxs3_sys_clk_data[]; |
| extern const struct uniphier_clk_data uniphier_mio_clk_data[]; |
| |
| #endif /* __CLK_UNIPHIER_H__ */ |