1 /*
2  * (C) Copyright 2009
3  * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
4  *
5  * See file CREDITS for list of people who contributed to this
6  * project.
7  *
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.
12  *
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.
17  *
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,
21  * MA 02111-1307 USA
22  */
23 
24 #ifndef __ASM_ARCH_CLOCK_H
25 #define __ASM_ARCH_CLOCK_H
26 
27 #include <common.h>
28 
29 #ifdef CONFIG_SYS_MX5_HCLK
30 #define MXC_HCLK	CONFIG_SYS_MX5_HCLK
31 #else
32 #define MXC_HCLK	24000000
33 #endif
34 
35 #ifdef CONFIG_SYS_MX5_CLK32
36 #define MXC_CLK32	CONFIG_SYS_MX5_CLK32
37 #else
38 #define MXC_CLK32	32768
39 #endif
40 
41 enum mxc_clock {
42 	MXC_ARM_CLK = 0,
43 	MXC_AHB_CLK,
44 	MXC_IPG_CLK,
45 	MXC_IPG_PERCLK,
46 	MXC_UART_CLK,
47 	MXC_CSPI_CLK,
48 	MXC_ESDHC_CLK,
49 	MXC_ESDHC2_CLK,
50 	MXC_ESDHC3_CLK,
51 	MXC_ESDHC4_CLK,
52 	MXC_FEC_CLK,
53 	MXC_SATA_CLK,
54 	MXC_DDR_CLK,
55 	MXC_NFC_CLK,
56 	MXC_PERIPH_CLK,
57 	MXC_I2C_CLK,
58 };
59 
60 u32 imx_get_uartclk(void);
61 u32 imx_get_fecclk(void);
62 unsigned int mxc_get_clock(enum mxc_clock clk);
63 int mxc_set_clock(u32 ref, u32 freq, u32 clk_type);
64 void set_usb_phy_clk(void);
65 void enable_usb_phy1_clk(unsigned char enable);
66 void enable_usb_phy2_clk(unsigned char enable);
67 void set_usboh3_clk(void);
68 void enable_usboh3_clk(unsigned char enable);
69 void mxc_set_sata_internal_clock(void);
70 int enable_i2c_clk(unsigned char enable, unsigned i2c_num);
71 
72 #endif /* __ASM_ARCH_CLOCK_H */
73