1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  *
4  * (c) 2007 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
5  */
6 
7 #ifndef __ASM_ARCH_CLOCK_H
8 #define __ASM_ARCH_CLOCK_H
9 
10 #include <common.h>
11 
12 #ifdef CONFIG_MX31_HCLK_FREQ
13 #define MXC_HCLK	CONFIG_MX31_HCLK_FREQ
14 #else
15 #define MXC_HCLK	26000000
16 #endif
17 
18 #ifdef CONFIG_MX31_CLK32
19 #define MXC_CLK32	CONFIG_MX31_CLK32
20 #else
21 #define MXC_CLK32	32768
22 #endif
23 
24 enum mxc_clock {
25 	MXC_ARM_CLK,
26 	MXC_IPG_CLK,
27 	MXC_IPG_PERCLK,
28 	MXC_CSPI_CLK,
29 	MXC_UART_CLK,
30 	MXC_IPU_CLK,
31 	MXC_ESDHC_CLK,
32 	MXC_I2C_CLK,
33 };
34 
35 unsigned int mxc_get_clock(enum mxc_clock clk);
36 extern u32 imx_get_uartclk(void);
37 extern void mx31_gpio_mux(unsigned long mode);
38 extern void mx31_set_pad(enum iomux_pins pin, u32 config);
39 extern void mx31_set_gpr(enum iomux_gp_func gp, char en);
40 
41 void mx31_uart1_hw_init(void);
42 void mx31_uart2_hw_init(void);
43 void mx31_spi2_hw_init(void);
44 
45 #endif /* __ASM_ARCH_CLOCK_H */
46