xref: /freebsd/sys/contrib/device-tree/include/dt-bindings/clock/s3c2412.h (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
4  *
5  * Device Tree binding constants clock controllers of Samsung S3C2412.
6  */
7 
8 #ifndef _DT_BINDINGS_CLOCK_SAMSUNG_S3C2412_CLOCK_H
9 #define _DT_BINDINGS_CLOCK_SAMSUNG_S3C2412_CLOCK_H
10 
11 /*
12  * Let each exported clock get a unique index, which is used on DT-enabled
13  * platforms to lookup the clock from a clock specifier. These indices are
14  * therefore considered an ABI and so must not be changed. This implies
15  * that new clocks should be added either in free spaces between clock groups
16  * or at the end.
17  */
18 
19 /* Core clocks. */
20 
21 /* id 1 is reserved */
22 #define MPLL			2
23 #define UPLL			3
24 #define MDIVCLK			4
25 #define MSYSCLK			5
26 #define USYSCLK			6
27 #define HCLK			7
28 #define PCLK			8
29 #define ARMDIV			9
30 #define ARMCLK			10
31 
32 
33 /* Special clocks */
34 #define SCLK_CAM		16
35 #define SCLK_UART		17
36 #define SCLK_I2S		18
37 #define SCLK_USBD		19
38 #define SCLK_USBH		20
39 
40 /* pclk-gates */
41 #define PCLK_WDT		32
42 #define PCLK_SPI		33
43 #define PCLK_I2S		34
44 #define PCLK_I2C		35
45 #define PCLK_ADC		36
46 #define PCLK_RTC		37
47 #define PCLK_GPIO		38
48 #define PCLK_UART2		39
49 #define PCLK_UART1		40
50 #define PCLK_UART0		41
51 #define PCLK_SDI		42
52 #define PCLK_PWM		43
53 #define PCLK_USBD		44
54 
55 /* hclk-gates */
56 #define HCLK_HALF		48
57 #define HCLK_X2			49
58 #define HCLK_SDRAM		50
59 #define HCLK_USBH		51
60 #define HCLK_LCD		52
61 #define HCLK_NAND		53
62 #define HCLK_DMA3		54
63 #define HCLK_DMA2		55
64 #define HCLK_DMA1		56
65 #define HCLK_DMA0		57
66 
67 /* Total number of clocks. */
68 #define NR_CLKS			(HCLK_DMA0 + 1)
69 
70 #endif /* _DT_BINDINGS_CLOCK_SAMSUNG_S3C2412_CLOCK_H */
71