1 /* arch/arm/mach-s3c2410/include/mach/regs-s3c2443-clock.h
3 * Copyright (c) 2007 Simtec Electronics
4 * Ben Dooks <ben@simtec.co.uk>
5 * http://armlinux.simtec.co.uk/
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 * S3C2443 clock register definitions
14 #ifndef __ASM_ARM_REGS_S3C2443_CLOCK
15 #define __ASM_ARM_REGS_S3C2443_CLOCK
17 #define S3C2443_CLKREG(x) ((x) + S3C24XX_VA_CLKPWR)
19 #define S3C2443_PLLCON_MDIVSHIFT 16
20 #define S3C2443_PLLCON_PDIVSHIFT 8
21 #define S3C2443_PLLCON_SDIVSHIFT 0
22 #define S3C2443_PLLCON_MDIVMASK ((1<<(1+(23-16)))-1)
23 #define S3C2443_PLLCON_PDIVMASK ((1<<(1+(9-8)))-1)
24 #define S3C2443_PLLCON_SDIVMASK (3)
26 #define S3C2443_MPLLCON S3C2443_CLKREG(0x10)
27 #define S3C2443_EPLLCON S3C2443_CLKREG(0x18)
28 #define S3C2443_CLKSRC S3C2443_CLKREG(0x20)
29 #define S3C2443_CLKDIV0 S3C2443_CLKREG(0x24)
30 #define S3C2443_CLKDIV1 S3C2443_CLKREG(0x28)
31 #define S3C2443_HCLKCON S3C2443_CLKREG(0x30)
32 #define S3C2443_PCLKCON S3C2443_CLKREG(0x34)
33 #define S3C2443_SCLKCON S3C2443_CLKREG(0x38)
34 #define S3C2443_PWRMODE S3C2443_CLKREG(0x40)
35 #define S3C2443_SWRST S3C2443_CLKREG(0x44)
36 #define S3C2443_BUSPRI0 S3C2443_CLKREG(0x50)
37 #define S3C2443_SYSID S3C2443_CLKREG(0x5C)
38 #define S3C2443_PWRCFG S3C2443_CLKREG(0x60)
39 #define S3C2443_RSTCON S3C2443_CLKREG(0x64)
41 #define S3C2443_SWRST_RESET (0x533c2443)
43 #define S3C2443_PLLCON_OFF (1<<24)
45 #define S3C2443_CLKSRC_I2S_EXT (1<<14)
46 #define S3C2443_CLKSRC_I2S_EPLLDIV (0<<14)
47 #define S3C2443_CLKSRC_I2S_EPLLREF (2<<14)
48 #define S3C2443_CLKSRC_I2S_EPLLREF3 (3<<14)
49 #define S3C2443_CLKSRC_I2S_MASK (3<<14)
51 #define S3C2443_CLKSRC_EPLLREF_XTAL (2<<7)
52 #define S3C2443_CLKSRC_EPLLREF_EXTCLK (3<<7)
53 #define S3C2443_CLKSRC_EPLLREF_MPLLREF (0<<7)
54 #define S3C2443_CLKSRC_EPLLREF_MPLLREF2 (1<<7)
55 #define S3C2443_CLKSRC_EPLLREF_MASK (3<<7)
57 #define S3C2443_CLKSRC_ESYSCLK_EPLL (1<<6)
58 #define S3C2443_CLKSRC_MSYSCLK_MPLL (1<<4)
59 #define S3C2443_CLKSRC_EXTCLK_DIV (1<<3)
61 #define S3C2443_CLKDIV0_DVS (1<<13)
62 #define S3C2443_CLKDIV0_HALF_HCLK (1<<3)
63 #define S3C2443_CLKDIV0_HALF_PCLK (1<<2)
65 #define S3C2443_CLKDIV0_HCLKDIV_MASK (3<<0)
67 #define S3C2443_CLKDIV0_EXTDIV_MASK (3<<6)
68 #define S3C2443_CLKDIV0_EXTDIV_SHIFT (6)
70 #define S3C2443_CLKDIV0_PREDIV_MASK (3<<4)
71 #define S3C2443_CLKDIV0_PREDIV_SHIFT (4)
73 #define S3C2443_CLKDIV0_ARMDIV_MASK (15<<9)
74 #define S3C2443_CLKDIV0_ARMDIV_SHIFT (9)
75 #define S3C2443_CLKDIV0_ARMDIV_1 (0<<9)
76 #define S3C2443_CLKDIV0_ARMDIV_2 (8<<9)
77 #define S3C2443_CLKDIV0_ARMDIV_3 (2<<9)
78 #define S3C2443_CLKDIV0_ARMDIV_4 (9<<9)
79 #define S3C2443_CLKDIV0_ARMDIV_6 (10<<9)
80 #define S3C2443_CLKDIV0_ARMDIV_8 (11<<9)
81 #define S3C2443_CLKDIV0_ARMDIV_12 (13<<9)
82 #define S3C2443_CLKDIV0_ARMDIV_16 (15<<9)
86 #define S3C2443_CLKDIV1_CAMDIV_MASK (15<<26)
87 #define S3C2443_CLKDIV1_CAMDIV_SHIFT (26)
89 #define S3C2443_CLKDIV1_HSSPIDIV_MASK (3<<24)
90 #define S3C2443_CLKDIV1_HSSPIDIV_SHIFT (24)
92 #define S3C2443_CLKDIV1_DISPDIV_MASK (0xff<<16)
93 #define S3C2443_CLKDIV1_DISPDIV_SHIFT (16)
95 #define S3C2443_CLKDIV1_I2SDIV_MASK (15<<12)
96 #define S3C2443_CLKDIV1_I2SDIV_SHIFT (12)
98 #define S3C2443_CLKDIV1_UARTDIV_MASK (15<<8)
99 #define S3C2443_CLKDIV1_UARTDIV_SHIFT (8)
101 #define S3C2443_CLKDIV1_HSMMCDIV_MASK (3<<6)
102 #define S3C2443_CLKDIV1_HSMMCDIV_SHIFT (6)
104 #define S3C2443_CLKDIV1_USBHOSTDIV_MASK (3<<4)
105 #define S3C2443_CLKDIV1_USBHOSTDIV_SHIFT (4)
107 #define S3C2443_CLKCON_NAND
109 #define S3C2443_HCLKCON_DMA0 (1<<0)
110 #define S3C2443_HCLKCON_DMA1 (1<<1)
111 #define S3C2443_HCLKCON_DMA2 (1<<2)
112 #define S3C2443_HCLKCON_DMA3 (1<<3)
113 #define S3C2443_HCLKCON_DMA4 (1<<4)
114 #define S3C2443_HCLKCON_DMA5 (1<<5)
115 #define S3C2443_HCLKCON_CAMIF (1<<8)
116 #define S3C2443_HCLKCON_DISP (1<<9)
117 #define S3C2443_HCLKCON_LCDC (1<<10)
118 #define S3C2443_HCLKCON_USBH (1<<11)
119 #define S3C2443_HCLKCON_USBD (1<<12)
120 #define S3C2443_HCLKCON_HSMMC (1<<16)
121 #define S3C2443_HCLKCON_CFC (1<<17)
122 #define S3C2443_HCLKCON_SSMC (1<<18)
123 #define S3C2443_HCLKCON_DRAMC (1<<19)
125 #define S3C2443_PCLKCON_UART0 (1<<0)
126 #define S3C2443_PCLKCON_UART1 (1<<1)
127 #define S3C2443_PCLKCON_UART2 (1<<2)
128 #define S3C2443_PCLKCON_UART3 (1<<3)
129 #define S3C2443_PCLKCON_IIC (1<<4)
130 #define S3C2443_PCLKCON_SDI (1<<5)
131 #define S3C2443_PCLKCON_ADC (1<<7)
132 #define S3C2443_PCLKCON_AC97 (1<<8)
133 #define S3C2443_PCLKCON_IIS (1<<9)
134 #define S3C2443_PCLKCON_PWMT (1<<10)
135 #define S3C2443_PCLKCON_WDT (1<<11)
136 #define S3C2443_PCLKCON_RTC (1<<12)
137 #define S3C2443_PCLKCON_GPIO (1<<13)
138 #define S3C2443_PCLKCON_SPI0 (1<<14)
139 #define S3C2443_PCLKCON_SPI1 (1<<15)
141 #define S3C2443_SCLKCON_DDRCLK (1<<16)
142 #define S3C2443_SCLKCON_SSMCCLK (1<<15)
143 #define S3C2443_SCLKCON_HSSPICLK (1<<14)
144 #define S3C2443_SCLKCON_HSMMCCLK_EXT (1<<13)
145 #define S3C2443_SCLKCON_HSMMCCLK_EPLL (1<<12)
146 #define S3C2443_SCLKCON_CAMCLK (1<<11)
147 #define S3C2443_SCLKCON_DISPCLK (1<<10)
148 #define S3C2443_SCLKCON_I2SCLK (1<<9)
149 #define S3C2443_SCLKCON_UARTCLK (1<<8)
150 #define S3C2443_SCLKCON_USBHOST (1<<1)
152 #include <asm/div64.h>
154 static inline unsigned int
155 s3c2443_get_mpll(unsigned int pllval, unsigned int baseclk)
157 unsigned int mdiv, pdiv, sdiv;
160 mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT;
161 pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT;
162 sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT;
164 mdiv &= S3C2443_PLLCON_MDIVMASK;
165 pdiv &= S3C2443_PLLCON_PDIVMASK;
166 sdiv &= S3C2443_PLLCON_SDIVMASK;
168 fvco = (uint64_t)baseclk * (2 * (mdiv + 8));
169 do_div(fvco, pdiv << sdiv);
171 return (unsigned int)fvco;
174 static inline unsigned int
175 s3c2443_get_epll(unsigned int pllval, unsigned int baseclk)
177 unsigned int mdiv, pdiv, sdiv;
180 mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT;
181 pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT;
182 sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT;
184 mdiv &= S3C2443_PLLCON_MDIVMASK;
185 pdiv &= S3C2443_PLLCON_PDIVMASK;
186 sdiv &= S3C2443_PLLCON_SDIVMASK;
188 fvco = (uint64_t)baseclk * (mdiv + 8);
189 do_div(fvco, (pdiv + 2) << sdiv);
191 return (unsigned int)fvco;
194 #endif /* __ASM_ARM_REGS_S3C2443_CLOCK */