3 * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
24 #ifndef __ASM_ARCH_CLOCK_H
25 #define __ASM_ARCH_CLOCK_H
29 #ifdef CONFIG_SYS_MX6_HCLK
30 #define MXC_HCLK CONFIG_SYS_MX6_HCLK
32 #define MXC_HCLK 24000000
35 #ifdef CONFIG_SYS_MX6_CLK32
36 #define MXC_CLK32 CONFIG_SYS_MX6_CLK32
38 #define MXC_CLK32 32768
65 /* Source clock this clk depends on */
67 /* Secondary clock to enable/disable with this clock */
68 struct clk *secondary;
69 /* Current clock rate */
71 /* Reference count of clock enable/disable */
73 /* Register bit position for clock's enable/disable control. */
75 /* Register address for clock's enable/disable control. */
79 * Function ptr to recalculate the clock's rate based on parent
82 void (*recalc) (struct clk *);
84 * Function ptr to set the clock to a new rate. The rate must match a
85 * supported rate returned from round_rate. Leave blank if clock is not
88 int (*set_rate) (struct clk *, unsigned long);
90 * Function ptr to round the requested clock rate to the nearest
91 * supported rate that is less than or equal to the requested rate.
93 unsigned long (*round_rate) (struct clk *, unsigned long);
95 * Function ptr to enable the clock. Leave blank if clock can not
98 int (*enable) (struct clk *);
100 * Function ptr to disable the clock. Leave blank if clock can not
103 void (*disable) (struct clk *);
104 /* Function ptr to set the parent clock of the clock. */
105 int (*set_parent) (struct clk *, struct clk *);
108 u32 imx_get_uartclk(void);
109 u32 imx_get_fecclk(void);
110 unsigned int mxc_get_clock(enum mxc_clock clk);
111 int mxc_set_clock(u32 ref, u32 freq, enum mxc_clock clk);
112 void enable_usboh3_clk(unsigned char enable);
113 int enable_sata_clock(void);
114 int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
115 void ipu_clk_enable(void);
116 void ipu_clk_disable(void);
117 void ocotp_clk_enable(void);
118 void ocotp_clk_disable(void);
120 #endif /* __ASM_ARCH_CLOCK_H */