1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  *
4  * (c) 2009 Ilya Yanok, Emcraft Systems <yanok@emcraft.com>
5  *
6  * Modified for mx25 by John Rigby <jrigby@gmail.com>
7  */
8 
9 #ifndef __ASM_ARCH_CLOCK_H
10 #define __ASM_ARCH_CLOCK_H
11 
12 #ifdef CONFIG_MX25_HCLK_FREQ
13 #define MXC_HCLK	CONFIG_MX25_HCLK_FREQ
14 #else
15 #define MXC_HCLK	24000000
16 #endif
17 
18 #ifdef CONFIG_MX25_CLK32
19 #define MXC_CLK32	CONFIG_MX25_CLK32
20 #else
21 #define MXC_CLK32	32768
22 #endif
23 
24 enum mxc_clock {
25 	/* PER clocks (do not change order) */
26 	MXC_CSI_CLK,
27 	MXC_EPIT_CLK,
28 	MXC_ESAI_CLK,
29 	MXC_ESDHC1_CLK,
30 	MXC_ESDHC2_CLK,
31 	MXC_GPT_CLK,
32 	MXC_I2C_CLK,
33 	MXC_LCDC_CLK,
34 	MXC_NFC_CLK,
35 	MXC_OWIRE_CLK,
36 	MXC_PWM_CLK,
37 	MXC_SIM1_CLK,
38 	MXC_SIM2_CLK,
39 	MXC_SSI1_CLK,
40 	MXC_SSI2_CLK,
41 	MXC_UART_CLK,
42 	/* Other clocks */
43 	MXC_ARM_CLK,
44 	MXC_AHB_CLK,
45 	MXC_IPG_CLK,
46 	MXC_CSPI_CLK,
47 	MXC_FEC_CLK,
48 	MXC_CLK_NUM
49 };
50 
51 int imx_set_perclk(enum mxc_clock clk, bool from_upll, unsigned int freq);
52 unsigned int mxc_get_clock(enum mxc_clock clk);
53 
54 #define imx_get_uartclk()	mxc_get_clock(MXC_UART_CLK)
55 #define imx_get_fecclk()	mxc_get_clock(MXC_FEC_CLK)
56 
57 #endif /* __ASM_ARCH_CLOCK_H */
58