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ARM: cmd_clock: generalize command usage description
[u-boot] / arch / arm / include / asm / arch-keystone / clock.h
1 /*
2  * keystone2: common clock header file
3  *
4  * (C) Copyright 2012-2014
5  *     Texas Instruments Incorporated, <www.ti.com>
6  *
7  * SPDX-License-Identifier:     GPL-2.0+
8  */
9
10 #ifndef __ASM_ARCH_CLOCK_H
11 #define __ASM_ARCH_CLOCK_H
12
13 #ifndef __ASSEMBLY__
14
15 #ifdef CONFIG_SOC_K2HK
16 #include <asm/arch/clock-k2hk.h>
17 #endif
18
19 #ifdef CONFIG_SOC_K2E
20 #include <asm/arch/clock-k2e.h>
21 #endif
22
23 #define MAIN_PLL CORE_PLL
24
25 #include <asm/types.h>
26
27 #define GENERATE_ENUM(NUM, ENUM) ENUM = NUM,
28 #define GENERATE_INDX_STR(NUM, STRING) #NUM"\t- "#STRING"\n"
29 #define CLOCK_INDEXES_LIST      CLK_LIST(GENERATE_INDX_STR)
30
31 enum clk_e {
32         CLK_LIST(GENERATE_ENUM)
33 };
34
35 struct keystone_pll_regs {
36         u32 reg0;
37         u32 reg1;
38 };
39
40 /* PLL configuration data */
41 struct pll_init_data {
42         int pll;
43         int pll_m;              /* PLL Multiplier */
44         int pll_d;              /* PLL divider */
45         int pll_od;             /* PLL output divider */
46 };
47
48 extern const struct keystone_pll_regs keystone_pll_regs[];
49 extern int dev_speeds[];
50 extern int arm_speeds[];
51
52 void init_plls(int num_pll, struct pll_init_data *config);
53 void init_pll(const struct pll_init_data *data);
54 unsigned long clk_get_rate(unsigned int clk);
55 unsigned long clk_round_rate(unsigned int clk, unsigned long hz);
56 int clk_set_rate(unsigned int clk, unsigned long hz);
57 int get_max_dev_speed(void);
58 int get_max_arm_speed(void);
59
60 #endif
61 #endif