1 /*
2  *
3  * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.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_MX31_HCLK_FREQ
30 #define MXC_HCLK	CONFIG_MX31_HCLK_FREQ
31 #else
32 #define MXC_HCLK	26000000
33 #endif
34 
35 #ifdef CONFIG_MX31_CLK32
36 #define MXC_CLK32	CONFIG_MX31_CLK32
37 #else
38 #define MXC_CLK32	32768
39 #endif
40 
41 enum mxc_clock {
42 	MXC_ARM_CLK,
43 	MXC_IPG_CLK,
44 	MXC_IPG_PERCLK,
45 	MXC_CSPI_CLK,
46 	MXC_UART_CLK,
47 	MXC_IPU_CLK,
48 	MXC_ESDHC_CLK,
49 	MXC_I2C_CLK,
50 };
51 
52 unsigned int mxc_get_clock(enum mxc_clock clk);
53 extern u32 imx_get_uartclk(void);
54 extern void mx31_gpio_mux(unsigned long mode);
55 extern void mx31_set_pad(enum iomux_pins pin, u32 config);
56 extern void mx31_set_gpr(enum iomux_gp_func gp, char en);
57 
58 void mx31_uart1_hw_init(void);
59 void mx31_uart2_hw_init(void);
60 void mx31_spi2_hw_init(void);
61 void mxc_hw_watchdog_enable(void);
62 void mxc_hw_watchdog_reset(void);
63 
64 #endif /* __ASM_ARCH_CLOCK_H */
65