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 */
24 #ifndef __ASM_ARCH_CLOCK_H
25 #define __ASM_ARCH_CLOCK_H
27 #include <common.h>
29 #ifdef CONFIG_MX31_HCLK_FREQ
30 #define MXC_HCLK CONFIG_MX31_HCLK_FREQ
31 #else
32 #define MXC_HCLK 26000000
33 #endif
35 #ifdef CONFIG_MX31_CLK32
36 #define MXC_CLK32 CONFIG_MX31_CLK32
37 #else
38 #define MXC_CLK32 32768
39 #endif
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 };
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);
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);
64 #endif /* __ASM_ARCH_CLOCK_H */