projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
Merge tag 'power-exynos' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux...
[deliverable/linux.git] / arch / arm / plat-samsung / include / plat / pll.h
CommitLineData
52e329eb
KK		 1/* linux/arch/arm/plat-samsung/include/plat/pll.h
2 *
3 * Copyright (c) 2009-2011 Samsung Electronics Co., Ltd.
4 * http://www.samsung.com/
5 *
6 * Copyright 2008 Openmoko, Inc.
7 * Copyright 2008 Simtec Electronics
8 * Ben Dooks <ben@simtec.co.uk>
9 * http://armlinux.simtec.co.uk/
10 *
11 * Samsung PLL codes
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License version 2 as
15 * published by the Free Software Foundation.
16*/
17
18#include <asm/div64.h>
19
20#define S3C24XX_PLL_MDIV_MASK (0xFF)
21#define S3C24XX_PLL_PDIV_MASK (0x1F)
22#define S3C24XX_PLL_SDIV_MASK (0x3)
23#define S3C24XX_PLL_MDIV_SHIFT (12)
24#define S3C24XX_PLL_PDIV_SHIFT (4)
25#define S3C24XX_PLL_SDIV_SHIFT (0)
26
27static inline unsigned int s3c24xx_get_pll(unsigned int pllval,
28 unsigned int baseclk)
29{
30 unsigned int mdiv, pdiv, sdiv;
31 uint64_t fvco;
32
33 mdiv = (pllval >> S3C24XX_PLL_MDIV_SHIFT) & S3C24XX_PLL_MDIV_MASK;
34 pdiv = (pllval >> S3C24XX_PLL_PDIV_SHIFT) & S3C24XX_PLL_PDIV_MASK;
35 sdiv = (pllval >> S3C24XX_PLL_SDIV_SHIFT) & S3C24XX_PLL_SDIV_MASK;
36
37 fvco = (uint64_t)baseclk * (mdiv + 8);
38 do_div(fvco, (pdiv + 2) << sdiv);
39
40 return (unsigned int)fvco;
41}
42
43#define S3C2416_PLL_MDIV_MASK (0x3FF)
44#define S3C2416_PLL_PDIV_MASK (0x3F)
45#define S3C2416_PLL_SDIV_MASK (0x7)
46#define S3C2416_PLL_MDIV_SHIFT (14)
47#define S3C2416_PLL_PDIV_SHIFT (5)
48#define S3C2416_PLL_SDIV_SHIFT (0)
49
50static inline unsigned int s3c2416_get_pll(unsigned int pllval,
51 unsigned int baseclk)
52{
53 unsigned int mdiv, pdiv, sdiv;
54 uint64_t fvco;
55
56 mdiv = (pllval >> S3C2416_PLL_MDIV_SHIFT) & S3C2416_PLL_MDIV_MASK;
57 pdiv = (pllval >> S3C2416_PLL_PDIV_SHIFT) & S3C2416_PLL_PDIV_MASK;
58 sdiv = (pllval >> S3C2416_PLL_SDIV_SHIFT) & S3C2416_PLL_SDIV_MASK;
59
60 fvco = (uint64_t)baseclk * mdiv;
61 do_div(fvco, (pdiv << sdiv));
62
63 return (unsigned int)fvco;
64}
65
66#define S3C6400_PLL_MDIV_MASK (0x3FF)
67#define S3C6400_PLL_PDIV_MASK (0x3F)
68#define S3C6400_PLL_SDIV_MASK (0x7)
69#define S3C6400_PLL_MDIV_SHIFT (16)
70#define S3C6400_PLL_PDIV_SHIFT (8)
71#define S3C6400_PLL_SDIV_SHIFT (0)
72
73static inline unsigned long s3c6400_get_pll(unsigned long baseclk,
74 u32 pllcon)
75{
76 u32 mdiv, pdiv, sdiv;
77 u64 fvco = baseclk;
78
79 mdiv = (pllcon >> S3C6400_PLL_MDIV_SHIFT) & S3C6400_PLL_MDIV_MASK;
80 pdiv = (pllcon >> S3C6400_PLL_PDIV_SHIFT) & S3C6400_PLL_PDIV_MASK;
81 sdiv = (pllcon >> S3C6400_PLL_SDIV_SHIFT) & S3C6400_PLL_SDIV_MASK;
82
83 fvco *= mdiv;
84 do_div(fvco, (pdiv << sdiv));
85
86 return (unsigned long)fvco;
87}
88
89#define PLL6553X_MDIV_MASK (0x7F)
90#define PLL6553X_PDIV_MASK (0x1F)
91#define PLL6553X_SDIV_MASK (0x3)
92#define PLL6553X_KDIV_MASK (0xFFFF)
93#define PLL6553X_MDIV_SHIFT (16)
94#define PLL6553X_PDIV_SHIFT (8)
95#define PLL6553X_SDIV_SHIFT (0)
96
97static inline unsigned long s3c_get_pll6553x(unsigned long baseclk,
98 u32 pll_con0, u32 pll_con1)
99{
100 unsigned long result;
101 u32 mdiv, pdiv, sdiv, kdiv;
102 u64 tmp;
103
104 mdiv = (pll_con0 >> PLL6553X_MDIV_SHIFT) & PLL6553X_MDIV_MASK;
105 pdiv = (pll_con0 >> PLL6553X_PDIV_SHIFT) & PLL6553X_PDIV_MASK;
106 sdiv = (pll_con0 >> PLL6553X_SDIV_SHIFT) & PLL6553X_SDIV_MASK;
107 kdiv = pll_con1 & PLL6553X_KDIV_MASK;
108
109 /*
110 * We need to multiple baseclk by mdiv (the integer part) and kdiv
111 * which is in 2^16ths, so shift mdiv up (does not overflow) and
112 * add kdiv before multiplying. The use of tmp is to avoid any
113 * overflows before shifting bac down into result when multipling
114 * by the mdiv and kdiv pair.
115 */
116
117 tmp = baseclk;
118 tmp *= (mdiv << 16) + kdiv;
119 do_div(tmp, (pdiv << sdiv));
120 result = tmp >> 16;
121
122 return result;
123}
124
125#define PLL35XX_MDIV_MASK (0x3FF)
126#define PLL35XX_PDIV_MASK (0x3F)
127#define PLL35XX_SDIV_MASK (0x7)
128#define PLL35XX_MDIV_SHIFT (16)
129#define PLL35XX_PDIV_SHIFT (8)
130#define PLL35XX_SDIV_SHIFT (0)
131
132static inline unsigned long s5p_get_pll35xx(unsigned long baseclk, u32 pll_con)
133{
134 u32 mdiv, pdiv, sdiv;
135 u64 fvco = baseclk;
136
137 mdiv = (pll_con >> PLL35XX_MDIV_SHIFT) & PLL35XX_MDIV_MASK;
138 pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK;
139 sdiv = (pll_con >> PLL35XX_SDIV_SHIFT) & PLL35XX_SDIV_MASK;
140
141 fvco *= mdiv;
142 do_div(fvco, (pdiv << sdiv));
143
144 return (unsigned long)fvco;
145}
146
147#define PLL36XX_KDIV_MASK (0xFFFF)
148#define PLL36XX_MDIV_MASK (0x1FF)
149#define PLL36XX_PDIV_MASK (0x3F)
150#define PLL36XX_SDIV_MASK (0x7)
151#define PLL36XX_MDIV_SHIFT (16)
152#define PLL36XX_PDIV_SHIFT (8)
153#define PLL36XX_SDIV_SHIFT (0)
154
155static inline unsigned long s5p_get_pll36xx(unsigned long baseclk,
156 u32 pll_con0, u32 pll_con1)
157{
158 unsigned long result;
159 u32 mdiv, pdiv, sdiv, kdiv;
160 u64 tmp;
161
162 mdiv = (pll_con0 >> PLL36XX_MDIV_SHIFT) & PLL36XX_MDIV_MASK;
163 pdiv = (pll_con0 >> PLL36XX_PDIV_SHIFT) & PLL36XX_PDIV_MASK;
164 sdiv = (pll_con0 >> PLL36XX_SDIV_SHIFT) & PLL36XX_SDIV_MASK;
165 kdiv = pll_con1 & PLL36XX_KDIV_MASK;
166
167 tmp = baseclk;
168
169 tmp *= (mdiv << 16) + kdiv;
170 do_div(tmp, (pdiv << sdiv));
171 result = tmp >> 16;
172
173 return result;
174}
175
176#define PLL45XX_MDIV_MASK (0x3FF)
177#define PLL45XX_PDIV_MASK (0x3F)
178#define PLL45XX_SDIV_MASK (0x7)
179#define PLL45XX_MDIV_SHIFT (16)
180#define PLL45XX_PDIV_SHIFT (8)
181#define PLL45XX_SDIV_SHIFT (0)
182
183enum pll45xx_type_t {
184 pll_4500,
185 pll_4502,
186 pll_4508
187};
188
189static inline unsigned long s5p_get_pll45xx(unsigned long baseclk, u32 pll_con,
190 enum pll45xx_type_t pll_type)
191{
192 u32 mdiv, pdiv, sdiv;
193 u64 fvco = baseclk;
194
195 mdiv = (pll_con >> PLL45XX_MDIV_SHIFT) & PLL45XX_MDIV_MASK;
196 pdiv = (pll_con >> PLL45XX_PDIV_SHIFT) & PLL45XX_PDIV_MASK;
197 sdiv = (pll_con >> PLL45XX_SDIV_SHIFT) & PLL45XX_SDIV_MASK;
198
199 if (pll_type == pll_4508)
200 sdiv = sdiv - 1;
201
202 fvco *= mdiv;
203 do_div(fvco, (pdiv << sdiv));
204
205 return (unsigned long)fvco;
206}
207
208/* CON0 bit-fields */
209#define PLL46XX_MDIV_MASK (0x1FF)
210#define PLL46XX_PDIV_MASK (0x3F)
211#define PLL46XX_SDIV_MASK (0x7)
212#define PLL46XX_LOCKED_SHIFT (29)
213#define PLL46XX_MDIV_SHIFT (16)
214#define PLL46XX_PDIV_SHIFT (8)
215#define PLL46XX_SDIV_SHIFT (0)
216
217/* CON1 bit-fields */
218#define PLL46XX_MRR_MASK (0x1F)
219#define PLL46XX_MFR_MASK (0x3F)
220#define PLL46XX_KDIV_MASK (0xFFFF)
221#define PLL4650C_KDIV_MASK (0xFFF)
222#define PLL46XX_MRR_SHIFT (24)
223#define PLL46XX_MFR_SHIFT (16)
224#define PLL46XX_KDIV_SHIFT (0)
225
226enum pll46xx_type_t {
227 pll_4600,
228 pll_4650,
229 pll_4650c,
230};
231
232static inline unsigned long s5p_get_pll46xx(unsigned long baseclk,
233 u32 pll_con0, u32 pll_con1,
234 enum pll46xx_type_t pll_type)
235{
236 unsigned long result;
237 u32 mdiv, pdiv, sdiv, kdiv;
238 u64 tmp;
239
240 mdiv = (pll_con0 >> PLL46XX_MDIV_SHIFT) & PLL46XX_MDIV_MASK;
241 pdiv = (pll_con0 >> PLL46XX_PDIV_SHIFT) & PLL46XX_PDIV_MASK;
242 sdiv = (pll_con0 >> PLL46XX_SDIV_SHIFT) & PLL46XX_SDIV_MASK;
243 kdiv = pll_con1 & PLL46XX_KDIV_MASK;
244
245 if (pll_type == pll_4650c)
246 kdiv = pll_con1 & PLL4650C_KDIV_MASK;
247 else
248 kdiv = pll_con1 & PLL46XX_KDIV_MASK;
249
250 tmp = baseclk;
251
252 if (pll_type == pll_4600) {
253 tmp *= (mdiv << 16) + kdiv;
254 do_div(tmp, (pdiv << sdiv));
255 result = tmp >> 16;
256 } else {
257 tmp *= (mdiv << 10) + kdiv;
258 do_div(tmp, (pdiv << sdiv));
259 result = tmp >> 10;
260 }
261
262 return result;
263}
264
265#define PLL90XX_MDIV_MASK (0xFF)
266#define PLL90XX_PDIV_MASK (0x3F)
267#define PLL90XX_SDIV_MASK (0x7)
268#define PLL90XX_KDIV_MASK (0xffff)
269#define PLL90XX_LOCKED_SHIFT (29)
270#define PLL90XX_MDIV_SHIFT (16)
271#define PLL90XX_PDIV_SHIFT (8)
272#define PLL90XX_SDIV_SHIFT (0)
273#define PLL90XX_KDIV_SHIFT (0)
274
275static inline unsigned long s5p_get_pll90xx(unsigned long baseclk,
276 u32 pll_con, u32 pll_conk)
277{
278 unsigned long result;
279 u32 mdiv, pdiv, sdiv, kdiv;
280 u64 tmp;
281
282 mdiv = (pll_con >> PLL90XX_MDIV_SHIFT) & PLL90XX_MDIV_MASK;
283 pdiv = (pll_con >> PLL90XX_PDIV_SHIFT) & PLL90XX_PDIV_MASK;
284 sdiv = (pll_con >> PLL90XX_SDIV_SHIFT) & PLL90XX_SDIV_MASK;
285 kdiv = pll_conk & PLL90XX_KDIV_MASK;
286
287 /*
288 * We need to multiple baseclk by mdiv (the integer part) and kdiv
289 * which is in 2^16ths, so shift mdiv up (does not overflow) and
290 * add kdiv before multiplying. The use of tmp is to avoid any
291 * overflows before shifting bac down into result when multipling
292 * by the mdiv and kdiv pair.
293 */
294
295 tmp = baseclk;
296 tmp *= (mdiv << 16) + kdiv;
297 do_div(tmp, (pdiv << sdiv));
298 result = tmp >> 16;
299
300 return result;
301}
302
303#define PLL65XX_MDIV_MASK (0x3FF)
304#define PLL65XX_PDIV_MASK (0x3F)
305#define PLL65XX_SDIV_MASK (0x7)
306#define PLL65XX_MDIV_SHIFT (16)
307#define PLL65XX_PDIV_SHIFT (8)
308#define PLL65XX_SDIV_SHIFT (0)
309
310static inline unsigned long s5p_get_pll65xx(unsigned long baseclk, u32 pll_con)
311{
312 u32 mdiv, pdiv, sdiv;
313 u64 fvco = baseclk;
314
315 mdiv = (pll_con >> PLL65XX_MDIV_SHIFT) & PLL65XX_MDIV_MASK;
316 pdiv = (pll_con >> PLL65XX_PDIV_SHIFT) & PLL65XX_PDIV_MASK;
317 sdiv = (pll_con >> PLL65XX_SDIV_SHIFT) & PLL65XX_SDIV_MASK;
318
319 fvco *= mdiv;
320 do_div(fvco, (pdiv << sdiv));
321
322 return (unsigned long)fvco;
323}
Linux kernel - Deliverables
This page took 0.166161 seconds and 5 git commands to generate.