summaryrefslogtreecommitdiffstats
path: root/include/asm-arm/arch-s3c2410/regs-s3c2443-clock.h
blob: ff0536d2de42644c6ab6e371ba676bcbc4748679 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
/* linux/include/asm-arm/arch-s3c2410/regs-clock.h
 *
 * Copyright (c) 2007 Simtec Electronics
 *	Ben Dooks <ben@simtec.co.uk>
 *	http://armlinux.simtec.co.uk/
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * S3C2443 clock register definitions
*/

#ifndef __ASM_ARM_REGS_S3C2443_CLOCK
#define __ASM_ARM_REGS_S3C2443_CLOCK

#define S3C2443_CLKREG(x)		((x) + S3C24XX_VA_CLKPWR)

#define S3C2443_PLLCON_MDIVSHIFT	16
#define S3C2443_PLLCON_PDIVSHIFT	8
#define S3C2443_PLLCON_SDIVSHIFT	0
#define S3C2443_PLLCON_MDIVMASK		((1<<(1+(23-16)))-1)
#define S3C2443_PLLCON_PDIVMASK		((1<<(1+(9-8)))-1)
#define S3C2443_PLLCON_SDIVMASK		(3)

#define S3C2443_MPLLCON			S3C2443_CLKREG(0x10)
#define S3C2443_EPLLCON			S3C2443_CLKREG(0x18)
#define S3C2443_CLKSRC			S3C2443_CLKREG(0x20)
#define S3C2443_CLKDIV0			S3C2443_CLKREG(0x24)
#define S3C2443_CLKDIV1			S3C2443_CLKREG(0x28)
#define S3C2443_HCLKCON			S3C2443_CLKREG(0x30)
#define S3C2443_PCLKCON			S3C2443_CLKREG(0x34)
#define S3C2443_SCLKCON			S3C2443_CLKREG(0x38)
#define S3C2443_PWRMODE			S3C2443_CLKREG(0x40)
#define S3C2443_SWRST			S3C2443_CLKREG(0x44)
#define S3C2443_BUSPRI0			S3C2443_CLKREG(0x50)
#define S3C2443_SYSID			S3C2443_CLKREG(0x5C)
#define S3C2443_PWRCFG			S3C2443_CLKREG(0x60)
#define S3C2443_RSTCON			S3C2443_CLKREG(0x64)

#define S3C2443_SWRST_RESET		(0x533c2443)

#define S3C2443_PLLCON_OFF		(1<<24)

#define S3C2443_CLKSRC_I2S_EXT		(1<<14)
#define S3C2443_CLKSRC_I2S_EPLLDIV	(0<<14)
#define S3C2443_CLKSRC_I2S_EPLLREF	(2<<14)
#define S3C2443_CLKSRC_I2S_EPLLREF3	(3<<14)
#define S3C2443_CLKSRC_I2S_MASK		(3<<14)

#define S3C2443_CLKSRC_EPLLREF_XTAL	(2<<8)
#define S3C2443_CLKSRC_EPLLREF_EXTCLK	(3<<8)
#define S3C2443_CLKSRC_EPLLREF_MPLLREF	(0<<8)
#define S3C2443_CLKSRC_EPLLREF_MPLLREF2	(1<<8)
#define S3C2443_CLKSRC_EPLLREF_MASK	(3<<8)

#define S3C2443_CLKSRC_ESYSCLK_EPLL	(1<<6)
#define S3C2443_CLKSRC_MSYSCLK_MPLL	(1<<4)
#define S3C2443_CLKSRC_EXTCLK_DIV	(1<<3)

#define S3C2443_CLKDIV0_DVS		(1<<13)
#define S3C2443_CLKDIV0_HALF_HCLK	(1<<3)
#define S3C2443_CLKDIV0_HALF_PCLK	(1<<2)

#define S3C2443_CLKDIV0_HCLKDIV_MASK	(3<<0)

#define S3C2443_CLKDIV0_EXTDIV_MASK	(3<<6)
#define S3C2443_CLKDIV0_EXTDIV_SHIFT	(6)

#define S3C2443_CLKDIV0_PREDIV_MASK	(3<<4)
#define S3C2443_CLKDIV0_PREDIV_SHIFT	(4)

#define S3C2443_CLKDIV0_ARMDIV_MASK	(15<<9)
#define S3C2443_CLKDIV0_ARMDIV_SHIFT	(9)
#define S3C2443_CLKDIV0_ARMDIV_1	(0<<9)
#define S3C2443_CLKDIV0_ARMDIV_2	(8<<9)
#define S3C2443_CLKDIV0_ARMDIV_3	(2<<9)
#define S3C2443_CLKDIV0_ARMDIV_4	(9<<9)
#define S3C2443_CLKDIV0_ARMDIV_6	(10<<9)
#define S3C2443_CLKDIV0_ARMDIV_8	(11<<9)
#define S3C2443_CLKDIV0_ARMDIV_12	(13<<9)
#define S3C2443_CLKDIV0_ARMDIV_16	(15<<9)

/* S3C2443_CLKDIV1 */

#define S3C2443_CLKDIV1_CAMDIV_MASK	(15<<26)
#define S3C2443_CLKDIV1_CAMDIV_SHIFT	(26)

#define S3C2443_CLKDIV1_HSSPIDIV_MASK	(3<<24)
#define S3C2443_CLKDIV1_HSSPIDIV_SHIFT	(24)

#define S3C2443_CLKDIV1_DISPDIV_MASK	(0xff<<16)
#define S3C2443_CLKDIV1_DISPDIV_SHIFT	(16)

#define S3C2443_CLKDIV1_I2SDIV_MASK	(15<<12)
#define S3C2443_CLKDIV1_I2SDIV_SHIFT	(12)

#define S3C2443_CLKDIV1_UARTDIV_MASK	(15<<8)
#define S3C2443_CLKDIV1_UARTDIV_SHIFT	(8)

#define S3C2443_CLKDIV1_HSMMCDIV_MASK	(3<<6)
#define S3C2443_CLKDIV1_HSMMCDIV_SHIFT	(6)

#define S3C2443_CLKDIV1_USBHOSTDIV_MASK	(3<<4)
#define S3C2443_CLKDIV1_USBHOSTDIV_SHIFT (4)

#define S3C2443_CLKCON_NAND

#define S3C2443_HCLKCON_DMA0		(1<<0)
#define S3C2443_HCLKCON_DMA1		(1<<1)
#define S3C2443_HCLKCON_DMA2		(1<<2)
#define S3C2443_HCLKCON_DMA3		(1<<3)
#define S3C2443_HCLKCON_DMA4		(1<<4)
#define S3C2443_HCLKCON_DMA5		(1<<5)
#define S3C2443_HCLKCON_CAMIF		(1<<8)
#define S3C2443_HCLKCON_DISP		(1<<9)
#define S3C2443_HCLKCON_LCDC		(1<<10)
#define S3C2443_HCLKCON_USBH		(1<<11)
#define S3C2443_HCLKCON_USBD		(1<<12)
#define S3C2443_HCLKCON_HSMMC		(1<<16)
#define S3C2443_HCLKCON_CFC		(1<<17)
#define S3C2443_HCLKCON_SSMC		(1<<18)
#define S3C2443_HCLKCON_DRAMC		(1<<19)

#define S3C2443_PCLKCON_UART0		(1<<0)
#define S3C2443_PCLKCON_UART1		(1<<1)
#define S3C2443_PCLKCON_UART2		(1<<2)
#define S3C2443_PCLKCON_UART3		(1<<3)
#define S3C2443_PCLKCON_IIC		(1<<4)
#define S3C2443_PCLKCON_SDI		(1<<5)
#define S3C2443_PCLKCON_ADC		(1<<7)
#define S3C2443_PCLKCON_IIS		(1<<9)
#define S3C2443_PCLKCON_PWMT		(1<<10)
#define S3C2443_PCLKCON_WDT		(1<<11)
#define S3C2443_PCLKCON_RTC		(1<<12)
#define S3C2443_PCLKCON_GPIO		(1<<13)
#define S3C2443_PCLKCON_SPI0		(1<<14)
#define S3C2443_PCLKCON_SPI1		(1<<15)

#define S3C2443_SCLKCON_DDRCLK		(1<<16)
#define S3C2443_SCLKCON_SSMCCLK		(1<<15)
#define S3C2443_SCLKCON_HSSPICLK	(1<<14)
#define S3C2443_SCLKCON_HSMMCCLK_EXT	(1<<13)
#define S3C2443_SCLKCON_HSMMCCLK_EPLL	(1<<12)
#define S3C2443_SCLKCON_CAMCLK		(1<<11)
#define S3C2443_SCLKCON_DISPCLK		(1<<10)
#define S3C2443_SCLKCON_I2SCLK		(1<<9)
#define S3C2443_SCLKCON_UARTCLK		(1<<8)
#define S3C2443_SCLKCON_USBHOST		(1<<1)

#include <asm/div64.h>

static inline unsigned int
s3c2443_get_mpll(unsigned int pllval, unsigned int baseclk)
{
	unsigned int mdiv, pdiv, sdiv;
	uint64_t fvco;

	mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT;
	pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT;
	sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT;

	mdiv &= S3C2443_PLLCON_MDIVMASK;
	pdiv &= S3C2443_PLLCON_PDIVMASK;
	sdiv &= S3C2443_PLLCON_SDIVMASK;

	fvco = (uint64_t)baseclk * (2 * (mdiv + 8));
	do_div(fvco, pdiv << sdiv);

	return (unsigned int)fvco;
}

static inline unsigned int
s3c2443_get_epll(unsigned int pllval, unsigned int baseclk)
{
	unsigned int mdiv, pdiv, sdiv;
	uint64_t fvco;

	mdiv = pllval >> S3C2443_PLLCON_MDIVSHIFT;
	pdiv = pllval >> S3C2443_PLLCON_PDIVSHIFT;
	sdiv = pllval >> S3C2443_PLLCON_SDIVSHIFT;

	mdiv &= S3C2443_PLLCON_MDIVMASK;
	pdiv &= S3C2443_PLLCON_PDIVMASK;
	sdiv &= S3C2443_PLLCON_SDIVMASK;

	fvco = (uint64_t)baseclk * (mdiv + 8);
	do_div(fvco, (pdiv + 2) << sdiv);

	return (unsigned int)fvco;
}

#endif /*  __ASM_ARM_REGS_S3C2443_CLOCK */

OpenPOWER on IntegriCloud