1 /* linux/include/asm/arch-s3c2410/regs-clock.h
3 * Copyright (c) 2003,2004,2005 Simtec Electronics <linux@simtec.co.uk>
4 * http://armlinux.simtec.co.uk/
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * S3C2410 clock register definitions
13 * 18-Aug-2004 Ben Dooks Added 2440 definitions
14 * 08-Aug-2004 Herbert Pƶtzl Added CLKCON definitions
15 * 19-06-2003 Ben Dooks Created file
16 * 12-03-2004 Ben Dooks Updated include protection
17 * 29-Sep-2004 Ben Dooks Fixed usage for assembly inclusion
18 * 10-Feb-2005 Ben Dooks Fixed CAMDIVN address (Guillaume Gourat)
19 * 10-Mar-2005 Lucas Villa Real Changed S3C2410_VA to S3C24XX_VA
20 * 27-Aug-2005 Ben Dooks Add clock-slow info
23 #ifndef __ASM_ARM_REGS_CLOCK
24 #define __ASM_ARM_REGS_CLOCK "$Id: clock.h,v 1.4 2003/04/30 14:50:51 ben Exp $"
26 #define S3C2410_CLKREG(x) ((x) + S3C24XX_VA_CLKPWR)
28 #define S3C2410_PLLVAL(_m,_p,_s) ((_m) << 12 | ((_p) << 4) | ((_s)))
30 #define S3C2410_LOCKTIME S3C2410_CLKREG(0x00)
31 #define S3C2410_MPLLCON S3C2410_CLKREG(0x04)
32 #define S3C2410_UPLLCON S3C2410_CLKREG(0x08)
33 #define S3C2410_CLKCON S3C2410_CLKREG(0x0C)
34 #define S3C2410_CLKSLOW S3C2410_CLKREG(0x10)
35 #define S3C2410_CLKDIVN S3C2410_CLKREG(0x14)
37 #define S3C2410_CLKCON_IDLE (1<<2)
38 #define S3C2410_CLKCON_POWER (1<<3)
39 #define S3C2410_CLKCON_NAND (1<<4)
40 #define S3C2410_CLKCON_LCDC (1<<5)
41 #define S3C2410_CLKCON_USBH (1<<6)
42 #define S3C2410_CLKCON_USBD (1<<7)
43 #define S3C2410_CLKCON_PWMT (1<<8)
44 #define S3C2410_CLKCON_SDI (1<<9)
45 #define S3C2410_CLKCON_UART0 (1<<10)
46 #define S3C2410_CLKCON_UART1 (1<<11)
47 #define S3C2410_CLKCON_UART2 (1<<12)
48 #define S3C2410_CLKCON_GPIO (1<<13)
49 #define S3C2410_CLKCON_RTC (1<<14)
50 #define S3C2410_CLKCON_ADC (1<<15)
51 #define S3C2410_CLKCON_IIC (1<<16)
52 #define S3C2410_CLKCON_IIS (1<<17)
53 #define S3C2410_CLKCON_SPI (1<<18)
55 #define S3C2410_PLLCON_MDIVSHIFT 12
56 #define S3C2410_PLLCON_PDIVSHIFT 4
57 #define S3C2410_PLLCON_SDIVSHIFT 0
58 #define S3C2410_PLLCON_MDIVMASK ((1<<(1+(19-12)))-1)
59 #define S3C2410_PLLCON_PDIVMASK ((1<<5)-1)
60 #define S3C2410_PLLCON_SDIVMASK 3
62 /* DCLKCON register addresses in gpio.h */
64 #define S3C2410_DCLKCON_DCLK0EN (1<<0)
65 #define S3C2410_DCLKCON_DCLK0_PCLK (0<<1)
66 #define S3C2410_DCLKCON_DCLK0_UCLK (1<<1)
67 #define S3C2410_DCLKCON_DCLK0_DIV(x) (((x) - 1 )<<4)
68 #define S3C2410_DCLKCON_DCLK0_CMP(x) (((x) - 1 )<<8)
70 #define S3C2410_DCLKCON_DCLK1EN (1<<16)
71 #define S3C2410_DCLKCON_DCLK1_PCLK (0<<17)
72 #define S3C2410_DCLKCON_DCLK1_UCLK (1<<17)
73 #define S3C2410_DCLKCON_DCLK1_DIV(x) (((x) - 1) <<20)
75 #define S3C2410_CLKDIVN_PDIVN (1<<0)
76 #define S3C2410_CLKDIVN_HDIVN (1<<1)
78 #define S3C2410_CLKSLOW_UCLK_OFF (1<<7)
79 #define S3C2410_CLKSLOW_MPLL_OFF (1<<5)
80 #define S3C2410_CLKSLOW_SLOW (1<<4)
81 #define S3C2410_CLKSLOW_SLOWVAL(x) (x)
82 #define S3C2410_CLKSLOW_GET_SLOWVAL(x) ((x) & 7)
86 static inline unsigned int
87 s3c2410_get_pll(int pllval, int baseclk)
91 mdiv = pllval >> S3C2410_PLLCON_MDIVSHIFT;
92 pdiv = pllval >> S3C2410_PLLCON_PDIVSHIFT;
93 sdiv = pllval >> S3C2410_PLLCON_SDIVSHIFT;
95 mdiv &= S3C2410_PLLCON_MDIVMASK;
96 pdiv &= S3C2410_PLLCON_PDIVMASK;
97 sdiv &= S3C2410_PLLCON_SDIVMASK;
99 return (baseclk * (mdiv + 8)) / ((pdiv + 2) << sdiv);
102 #endif /* __ASSEMBLY__ */
104 #ifdef CONFIG_CPU_S3C2440
106 /* extra registers */
107 #define S3C2440_CAMDIVN S3C2410_CLKREG(0x18)
109 #define S3C2440_CLKCON_CAMERA (1<<19)
110 #define S3C2440_CLKCON_AC97 (1<<20)
112 #define S3C2440_CLKDIVN_PDIVN (1<<0)
113 #define S3C2440_CLKDIVN_HDIVN_MASK (3<<1)
114 #define S3C2440_CLKDIVN_HDIVN_1 (0<<1)
115 #define S3C2440_CLKDIVN_HDIVN_2 (1<<1)
116 #define S3C2440_CLKDIVN_HDIVN_4_8 (2<<1)
117 #define S3C2440_CLKDIVN_HDIVN_3_6 (3<<1)
118 #define S3C2440_CLKDIVN_UCLK (1<<3)
120 #define S3C2440_CAMDIVN_CAMCLK_MASK (0xf<<0)
121 #define S3C2440_CAMDIVN_CAMCLK_SEL (1<<4)
122 #define S3C2440_CAMDIVN_HCLK3_HALF (1<<8)
123 #define S3C2440_CAMDIVN_HCLK4_HALF (1<<9)
124 #define S3C2440_CAMDIVN_DVSEN (1<<12)
126 #endif /* CONFIG_CPU_S3C2440 */
129 #endif /* __ASM_ARM_REGS_CLOCK */