diff options
Diffstat (limited to 'drivers/clk/socfpga/clk.h')
-rw-r--r-- | drivers/clk/socfpga/clk.h | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h new file mode 100644 index 000000000000..d2e54019c94f --- /dev/null +++ b/drivers/clk/socfpga/clk.h | |||
@@ -0,0 +1,57 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2013, Steffen Trumtrar <s.trumtrar@pengutronix.de> | ||
3 | * | ||
4 | * based on drivers/clk/tegra/clk.h | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify it | ||
7 | * under the terms and conditions of the GNU General Public License, | ||
8 | * version 2, as published by the Free Software Foundation. | ||
9 | * | ||
10 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
13 | * more details. | ||
14 | * | ||
15 | */ | ||
16 | |||
17 | #ifndef __SOCFPGA_CLK_H | ||
18 | #define __SOCFPGA_CLK_H | ||
19 | |||
20 | #include <linux/clk-provider.h> | ||
21 | #include <linux/clkdev.h> | ||
22 | |||
23 | /* Clock Manager offsets */ | ||
24 | #define CLKMGR_CTRL 0x0 | ||
25 | #define CLKMGR_BYPASS 0x4 | ||
26 | #define CLKMGR_L4SRC 0x70 | ||
27 | #define CLKMGR_PERPLL_SRC 0xAC | ||
28 | |||
29 | #define SOCFPGA_MAX_PARENTS 3 | ||
30 | |||
31 | extern void __iomem *clk_mgr_base_addr; | ||
32 | |||
33 | void __init socfpga_pll_init(struct device_node *node); | ||
34 | void __init socfpga_periph_init(struct device_node *node); | ||
35 | void __init socfpga_gate_init(struct device_node *node); | ||
36 | |||
37 | struct socfpga_pll { | ||
38 | struct clk_gate hw; | ||
39 | }; | ||
40 | |||
41 | struct socfpga_gate_clk { | ||
42 | struct clk_gate hw; | ||
43 | char *parent_name; | ||
44 | u32 fixed_div; | ||
45 | void __iomem *div_reg; | ||
46 | u32 width; /* only valid if div_reg != 0 */ | ||
47 | u32 shift; /* only valid if div_reg != 0 */ | ||
48 | u32 clk_phase[2]; | ||
49 | }; | ||
50 | |||
51 | struct socfpga_periph_clk { | ||
52 | struct clk_gate hw; | ||
53 | char *parent_name; | ||
54 | u32 fixed_div; | ||
55 | }; | ||
56 | |||
57 | #endif /* SOCFPGA_CLK_H */ | ||