Commit | Line | Data |
---|---|---|
e1b53b3d CX |
1 | /* |
2 | * pxa168 clock framework source file | |
3 | * | |
4 | * Copyright (C) 2012 Marvell | |
5 | * Chao Xie <xiechao.mail@gmail.com> | |
6 | * | |
7 | * This file is licensed under the terms of the GNU General Public | |
8 | * License version 2. This program is licensed "as is" without any | |
9 | * warranty of any kind, whether express or implied. | |
10 | */ | |
11 | ||
c21ac066 | 12 | #include <linux/clk.h> |
e1b53b3d CX |
13 | #include <linux/module.h> |
14 | #include <linux/kernel.h> | |
15 | #include <linux/spinlock.h> | |
16 | #include <linux/io.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/err.h> | |
19 | ||
20 | #include <mach/addr-map.h> | |
21 | ||
22 | #include "clk.h" | |
23 | ||
24 | #define APBC_RTC 0x28 | |
25 | #define APBC_TWSI0 0x2c | |
26 | #define APBC_KPC 0x30 | |
27 | #define APBC_UART0 0x0 | |
28 | #define APBC_UART1 0x4 | |
29 | #define APBC_GPIO 0x8 | |
30 | #define APBC_PWM0 0xc | |
31 | #define APBC_PWM1 0x10 | |
32 | #define APBC_PWM2 0x14 | |
33 | #define APBC_PWM3 0x18 | |
34 | #define APBC_SSP0 0x81c | |
35 | #define APBC_SSP1 0x820 | |
36 | #define APBC_SSP2 0x84c | |
37 | #define APBC_SSP3 0x858 | |
38 | #define APBC_SSP4 0x85c | |
39 | #define APBC_TWSI1 0x6c | |
40 | #define APBC_UART2 0x70 | |
41 | #define APMU_SDH0 0x54 | |
42 | #define APMU_SDH1 0x58 | |
43 | #define APMU_USB 0x5c | |
44 | #define APMU_DISP0 0x4c | |
45 | #define APMU_CCIC0 0x50 | |
46 | #define APMU_DFC 0x60 | |
47 | #define MPMU_UART_PLL 0x14 | |
48 | ||
49 | static DEFINE_SPINLOCK(clk_lock); | |
50 | ||
2bd1e256 | 51 | static struct mmp_clk_factor_masks uart_factor_masks = { |
e1b53b3d CX |
52 | .factor = 2, |
53 | .num_mask = 0x1fff, | |
54 | .den_mask = 0x1fff, | |
55 | .num_shift = 16, | |
56 | .den_shift = 0, | |
57 | }; | |
58 | ||
2bd1e256 | 59 | static struct mmp_clk_factor_tbl uart_factor_tbl[] = { |
e1b53b3d CX |
60 | {.num = 8125, .den = 1536}, /*14.745MHZ */ |
61 | }; | |
62 | ||
63 | static const char *uart_parent[] = {"pll1_3_16", "uart_pll"}; | |
64 | static const char *ssp_parent[] = {"pll1_96", "pll1_48", "pll1_24", "pll1_12"}; | |
65 | static const char *sdh_parent[] = {"pll1_12", "pll1_13"}; | |
66 | static const char *disp_parent[] = {"pll1_2", "pll1_12"}; | |
67 | static const char *ccic_parent[] = {"pll1_2", "pll1_12"}; | |
68 | static const char *ccic_phy_parent[] = {"pll1_6", "pll1_12"}; | |
69 | ||
70 | void __init pxa168_clk_init(void) | |
71 | { | |
72 | struct clk *clk; | |
73 | struct clk *uart_pll; | |
74 | void __iomem *mpmu_base; | |
75 | void __iomem *apmu_base; | |
76 | void __iomem *apbc_base; | |
77 | ||
78 | mpmu_base = ioremap(APB_PHYS_BASE + 0x50000, SZ_4K); | |
79 | if (mpmu_base == NULL) { | |
80 | pr_err("error to ioremap MPMU base\n"); | |
81 | return; | |
82 | } | |
83 | ||
84 | apmu_base = ioremap(AXI_PHYS_BASE + 0x82800, SZ_4K); | |
85 | if (apmu_base == NULL) { | |
86 | pr_err("error to ioremap APMU base\n"); | |
87 | return; | |
88 | } | |
89 | ||
90 | apbc_base = ioremap(APB_PHYS_BASE + 0x15000, SZ_4K); | |
91 | if (apbc_base == NULL) { | |
92 | pr_err("error to ioremap APBC base\n"); | |
93 | return; | |
94 | } | |
95 | ||
96 | clk = clk_register_fixed_rate(NULL, "clk32", NULL, CLK_IS_ROOT, 3200); | |
97 | clk_register_clkdev(clk, "clk32", NULL); | |
98 | ||
99 | clk = clk_register_fixed_rate(NULL, "vctcxo", NULL, CLK_IS_ROOT, | |
100 | 26000000); | |
101 | clk_register_clkdev(clk, "vctcxo", NULL); | |
102 | ||
103 | clk = clk_register_fixed_rate(NULL, "pll1", NULL, CLK_IS_ROOT, | |
104 | 624000000); | |
105 | clk_register_clkdev(clk, "pll1", NULL); | |
106 | ||
107 | clk = clk_register_fixed_factor(NULL, "pll1_2", "pll1", | |
108 | CLK_SET_RATE_PARENT, 1, 2); | |
109 | clk_register_clkdev(clk, "pll1_2", NULL); | |
110 | ||
111 | clk = clk_register_fixed_factor(NULL, "pll1_4", "pll1_2", | |
112 | CLK_SET_RATE_PARENT, 1, 2); | |
113 | clk_register_clkdev(clk, "pll1_4", NULL); | |
114 | ||
115 | clk = clk_register_fixed_factor(NULL, "pll1_8", "pll1_4", | |
116 | CLK_SET_RATE_PARENT, 1, 2); | |
117 | clk_register_clkdev(clk, "pll1_8", NULL); | |
118 | ||
119 | clk = clk_register_fixed_factor(NULL, "pll1_16", "pll1_8", | |
120 | CLK_SET_RATE_PARENT, 1, 2); | |
121 | clk_register_clkdev(clk, "pll1_16", NULL); | |
122 | ||
123 | clk = clk_register_fixed_factor(NULL, "pll1_6", "pll1_2", | |
124 | CLK_SET_RATE_PARENT, 1, 3); | |
125 | clk_register_clkdev(clk, "pll1_6", NULL); | |
126 | ||
127 | clk = clk_register_fixed_factor(NULL, "pll1_12", "pll1_6", | |
128 | CLK_SET_RATE_PARENT, 1, 2); | |
129 | clk_register_clkdev(clk, "pll1_12", NULL); | |
130 | ||
131 | clk = clk_register_fixed_factor(NULL, "pll1_24", "pll1_12", | |
132 | CLK_SET_RATE_PARENT, 1, 2); | |
133 | clk_register_clkdev(clk, "pll1_24", NULL); | |
134 | ||
135 | clk = clk_register_fixed_factor(NULL, "pll1_48", "pll1_24", | |
136 | CLK_SET_RATE_PARENT, 1, 2); | |
137 | clk_register_clkdev(clk, "pll1_48", NULL); | |
138 | ||
139 | clk = clk_register_fixed_factor(NULL, "pll1_96", "pll1_48", | |
140 | CLK_SET_RATE_PARENT, 1, 2); | |
141 | clk_register_clkdev(clk, "pll1_96", NULL); | |
142 | ||
143 | clk = clk_register_fixed_factor(NULL, "pll1_13", "pll1", | |
144 | CLK_SET_RATE_PARENT, 1, 13); | |
145 | clk_register_clkdev(clk, "pll1_13", NULL); | |
146 | ||
147 | clk = clk_register_fixed_factor(NULL, "pll1_13_1_5", "pll1", | |
148 | CLK_SET_RATE_PARENT, 2, 3); | |
149 | clk_register_clkdev(clk, "pll1_13_1_5", NULL); | |
150 | ||
151 | clk = clk_register_fixed_factor(NULL, "pll1_2_1_5", "pll1", | |
152 | CLK_SET_RATE_PARENT, 2, 3); | |
153 | clk_register_clkdev(clk, "pll1_2_1_5", NULL); | |
154 | ||
155 | clk = clk_register_fixed_factor(NULL, "pll1_3_16", "pll1", | |
156 | CLK_SET_RATE_PARENT, 3, 16); | |
157 | clk_register_clkdev(clk, "pll1_3_16", NULL); | |
158 | ||
159 | uart_pll = mmp_clk_register_factor("uart_pll", "pll1_4", 0, | |
160 | mpmu_base + MPMU_UART_PLL, | |
161 | &uart_factor_masks, uart_factor_tbl, | |
61256133 | 162 | ARRAY_SIZE(uart_factor_tbl), &clk_lock); |
e1b53b3d CX |
163 | clk_set_rate(uart_pll, 14745600); |
164 | clk_register_clkdev(uart_pll, "uart_pll", NULL); | |
165 | ||
166 | clk = mmp_clk_register_apbc("twsi0", "pll1_13_1_5", | |
167 | apbc_base + APBC_TWSI0, 10, 0, &clk_lock); | |
168 | clk_register_clkdev(clk, NULL, "pxa2xx-i2c.0"); | |
169 | ||
170 | clk = mmp_clk_register_apbc("twsi1", "pll1_13_1_5", | |
171 | apbc_base + APBC_TWSI1, 10, 0, &clk_lock); | |
172 | clk_register_clkdev(clk, NULL, "pxa2xx-i2c.1"); | |
173 | ||
174 | clk = mmp_clk_register_apbc("gpio", "vctcxo", | |
175 | apbc_base + APBC_GPIO, 10, 0, &clk_lock); | |
2cab0292 | 176 | clk_register_clkdev(clk, NULL, "mmp-gpio"); |
e1b53b3d CX |
177 | |
178 | clk = mmp_clk_register_apbc("kpc", "clk32", | |
179 | apbc_base + APBC_KPC, 10, 0, &clk_lock); | |
180 | clk_register_clkdev(clk, NULL, "pxa27x-keypad"); | |
181 | ||
182 | clk = mmp_clk_register_apbc("rtc", "clk32", | |
183 | apbc_base + APBC_RTC, 10, 0, &clk_lock); | |
184 | clk_register_clkdev(clk, NULL, "sa1100-rtc"); | |
185 | ||
186 | clk = mmp_clk_register_apbc("pwm0", "pll1_48", | |
187 | apbc_base + APBC_PWM0, 10, 0, &clk_lock); | |
188 | clk_register_clkdev(clk, NULL, "pxa168-pwm.0"); | |
189 | ||
190 | clk = mmp_clk_register_apbc("pwm1", "pll1_48", | |
191 | apbc_base + APBC_PWM1, 10, 0, &clk_lock); | |
192 | clk_register_clkdev(clk, NULL, "pxa168-pwm.1"); | |
193 | ||
194 | clk = mmp_clk_register_apbc("pwm2", "pll1_48", | |
195 | apbc_base + APBC_PWM2, 10, 0, &clk_lock); | |
196 | clk_register_clkdev(clk, NULL, "pxa168-pwm.2"); | |
197 | ||
198 | clk = mmp_clk_register_apbc("pwm3", "pll1_48", | |
199 | apbc_base + APBC_PWM3, 10, 0, &clk_lock); | |
200 | clk_register_clkdev(clk, NULL, "pxa168-pwm.3"); | |
201 | ||
202 | clk = clk_register_mux(NULL, "uart0_mux", uart_parent, | |
819c1de3 JH |
203 | ARRAY_SIZE(uart_parent), |
204 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
205 | apbc_base + APBC_UART0, 4, 3, 0, &clk_lock); |
206 | clk_set_parent(clk, uart_pll); | |
207 | clk_register_clkdev(clk, "uart_mux.0", NULL); | |
208 | ||
209 | clk = mmp_clk_register_apbc("uart0", "uart0_mux", | |
210 | apbc_base + APBC_UART0, 10, 0, &clk_lock); | |
211 | clk_register_clkdev(clk, NULL, "pxa2xx-uart.0"); | |
212 | ||
213 | clk = clk_register_mux(NULL, "uart1_mux", uart_parent, | |
819c1de3 JH |
214 | ARRAY_SIZE(uart_parent), |
215 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
216 | apbc_base + APBC_UART1, 4, 3, 0, &clk_lock); |
217 | clk_set_parent(clk, uart_pll); | |
218 | clk_register_clkdev(clk, "uart_mux.1", NULL); | |
219 | ||
220 | clk = mmp_clk_register_apbc("uart1", "uart1_mux", | |
221 | apbc_base + APBC_UART1, 10, 0, &clk_lock); | |
222 | clk_register_clkdev(clk, NULL, "pxa2xx-uart.1"); | |
223 | ||
224 | clk = clk_register_mux(NULL, "uart2_mux", uart_parent, | |
819c1de3 JH |
225 | ARRAY_SIZE(uart_parent), |
226 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
227 | apbc_base + APBC_UART2, 4, 3, 0, &clk_lock); |
228 | clk_set_parent(clk, uart_pll); | |
229 | clk_register_clkdev(clk, "uart_mux.2", NULL); | |
230 | ||
231 | clk = mmp_clk_register_apbc("uart2", "uart2_mux", | |
232 | apbc_base + APBC_UART2, 10, 0, &clk_lock); | |
233 | clk_register_clkdev(clk, NULL, "pxa2xx-uart.2"); | |
234 | ||
235 | clk = clk_register_mux(NULL, "ssp0_mux", ssp_parent, | |
819c1de3 JH |
236 | ARRAY_SIZE(ssp_parent), |
237 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
238 | apbc_base + APBC_SSP0, 4, 3, 0, &clk_lock); |
239 | clk_register_clkdev(clk, "uart_mux.0", NULL); | |
240 | ||
241 | clk = mmp_clk_register_apbc("ssp0", "ssp0_mux", apbc_base + APBC_SSP0, | |
242 | 10, 0, &clk_lock); | |
243 | clk_register_clkdev(clk, NULL, "mmp-ssp.0"); | |
244 | ||
245 | clk = clk_register_mux(NULL, "ssp1_mux", ssp_parent, | |
819c1de3 JH |
246 | ARRAY_SIZE(ssp_parent), |
247 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
248 | apbc_base + APBC_SSP1, 4, 3, 0, &clk_lock); |
249 | clk_register_clkdev(clk, "ssp_mux.1", NULL); | |
250 | ||
251 | clk = mmp_clk_register_apbc("ssp1", "ssp1_mux", apbc_base + APBC_SSP1, | |
252 | 10, 0, &clk_lock); | |
253 | clk_register_clkdev(clk, NULL, "mmp-ssp.1"); | |
254 | ||
255 | clk = clk_register_mux(NULL, "ssp2_mux", ssp_parent, | |
819c1de3 JH |
256 | ARRAY_SIZE(ssp_parent), |
257 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
258 | apbc_base + APBC_SSP2, 4, 3, 0, &clk_lock); |
259 | clk_register_clkdev(clk, "ssp_mux.2", NULL); | |
260 | ||
261 | clk = mmp_clk_register_apbc("ssp2", "ssp1_mux", apbc_base + APBC_SSP2, | |
262 | 10, 0, &clk_lock); | |
263 | clk_register_clkdev(clk, NULL, "mmp-ssp.2"); | |
264 | ||
265 | clk = clk_register_mux(NULL, "ssp3_mux", ssp_parent, | |
819c1de3 JH |
266 | ARRAY_SIZE(ssp_parent), |
267 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
268 | apbc_base + APBC_SSP3, 4, 3, 0, &clk_lock); |
269 | clk_register_clkdev(clk, "ssp_mux.3", NULL); | |
270 | ||
271 | clk = mmp_clk_register_apbc("ssp3", "ssp1_mux", apbc_base + APBC_SSP3, | |
272 | 10, 0, &clk_lock); | |
273 | clk_register_clkdev(clk, NULL, "mmp-ssp.3"); | |
274 | ||
275 | clk = clk_register_mux(NULL, "ssp4_mux", ssp_parent, | |
819c1de3 JH |
276 | ARRAY_SIZE(ssp_parent), |
277 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
278 | apbc_base + APBC_SSP4, 4, 3, 0, &clk_lock); |
279 | clk_register_clkdev(clk, "ssp_mux.4", NULL); | |
280 | ||
281 | clk = mmp_clk_register_apbc("ssp4", "ssp1_mux", apbc_base + APBC_SSP4, | |
282 | 10, 0, &clk_lock); | |
283 | clk_register_clkdev(clk, NULL, "mmp-ssp.4"); | |
284 | ||
285 | clk = mmp_clk_register_apmu("dfc", "pll1_4", apmu_base + APMU_DFC, | |
286 | 0x19b, &clk_lock); | |
287 | clk_register_clkdev(clk, NULL, "pxa3xx-nand.0"); | |
288 | ||
289 | clk = clk_register_mux(NULL, "sdh0_mux", sdh_parent, | |
819c1de3 JH |
290 | ARRAY_SIZE(sdh_parent), |
291 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
292 | apmu_base + APMU_SDH0, 6, 1, 0, &clk_lock); |
293 | clk_register_clkdev(clk, "sdh0_mux", NULL); | |
294 | ||
295 | clk = mmp_clk_register_apmu("sdh0", "sdh_mux", apmu_base + APMU_SDH0, | |
296 | 0x1b, &clk_lock); | |
297 | clk_register_clkdev(clk, NULL, "sdhci-pxa.0"); | |
298 | ||
299 | clk = clk_register_mux(NULL, "sdh1_mux", sdh_parent, | |
819c1de3 JH |
300 | ARRAY_SIZE(sdh_parent), |
301 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
302 | apmu_base + APMU_SDH1, 6, 1, 0, &clk_lock); |
303 | clk_register_clkdev(clk, "sdh1_mux", NULL); | |
304 | ||
305 | clk = mmp_clk_register_apmu("sdh1", "sdh1_mux", apmu_base + APMU_SDH1, | |
306 | 0x1b, &clk_lock); | |
307 | clk_register_clkdev(clk, NULL, "sdhci-pxa.1"); | |
308 | ||
309 | clk = mmp_clk_register_apmu("usb", "usb_pll", apmu_base + APMU_USB, | |
310 | 0x9, &clk_lock); | |
311 | clk_register_clkdev(clk, "usb_clk", NULL); | |
312 | ||
313 | clk = mmp_clk_register_apmu("sph", "usb_pll", apmu_base + APMU_USB, | |
314 | 0x12, &clk_lock); | |
315 | clk_register_clkdev(clk, "sph_clk", NULL); | |
316 | ||
317 | clk = clk_register_mux(NULL, "disp0_mux", disp_parent, | |
819c1de3 JH |
318 | ARRAY_SIZE(disp_parent), |
319 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
320 | apmu_base + APMU_DISP0, 6, 1, 0, &clk_lock); |
321 | clk_register_clkdev(clk, "disp_mux.0", NULL); | |
322 | ||
323 | clk = mmp_clk_register_apmu("disp0", "disp0_mux", | |
324 | apmu_base + APMU_DISP0, 0x1b, &clk_lock); | |
325 | clk_register_clkdev(clk, "fnclk", "mmp-disp.0"); | |
326 | ||
327 | clk = mmp_clk_register_apmu("disp0_hclk", "disp0_mux", | |
328 | apmu_base + APMU_DISP0, 0x24, &clk_lock); | |
329 | clk_register_clkdev(clk, "hclk", "mmp-disp.0"); | |
330 | ||
331 | clk = clk_register_mux(NULL, "ccic0_mux", ccic_parent, | |
819c1de3 JH |
332 | ARRAY_SIZE(ccic_parent), |
333 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
e1b53b3d CX |
334 | apmu_base + APMU_CCIC0, 6, 1, 0, &clk_lock); |
335 | clk_register_clkdev(clk, "ccic_mux.0", NULL); | |
336 | ||
337 | clk = mmp_clk_register_apmu("ccic0", "ccic0_mux", | |
338 | apmu_base + APMU_CCIC0, 0x1b, &clk_lock); | |
339 | clk_register_clkdev(clk, "fnclk", "mmp-ccic.0"); | |
340 | ||
341 | clk = clk_register_mux(NULL, "ccic0_phy_mux", ccic_phy_parent, | |
342 | ARRAY_SIZE(ccic_phy_parent), | |
819c1de3 JH |
343 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, |
344 | apmu_base + APMU_CCIC0, 7, 1, 0, &clk_lock); | |
e1b53b3d CX |
345 | clk_register_clkdev(clk, "ccic_phy_mux.0", NULL); |
346 | ||
347 | clk = mmp_clk_register_apmu("ccic0_phy", "ccic0_phy_mux", | |
348 | apmu_base + APMU_CCIC0, 0x24, &clk_lock); | |
349 | clk_register_clkdev(clk, "phyclk", "mmp-ccic.0"); | |
350 | ||
351 | clk = clk_register_divider(NULL, "ccic0_sphy_div", "ccic0_mux", | |
352 | CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0, | |
353 | 10, 5, 0, &clk_lock); | |
354 | clk_register_clkdev(clk, "sphyclk_div", NULL); | |
355 | ||
356 | clk = mmp_clk_register_apmu("ccic0_sphy", "ccic0_sphy_div", | |
357 | apmu_base + APMU_CCIC0, 0x300, &clk_lock); | |
358 | clk_register_clkdev(clk, "sphyclk", "mmp-ccic.0"); | |
359 | } |