Commit | Line | Data |
---|---|---|
84a62e6e CX |
1 | /* |
2 | * pxa910 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 | ||
990f2f22 | 12 | #include <linux/clk.h> |
84a62e6e 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 | ||
84a62e6e CX |
20 | #include "clk.h" |
21 | ||
22 | #define APBC_RTC 0x28 | |
23 | #define APBC_TWSI0 0x2c | |
24 | #define APBC_KPC 0x18 | |
25 | #define APBC_UART0 0x0 | |
26 | #define APBC_UART1 0x4 | |
27 | #define APBC_GPIO 0x8 | |
28 | #define APBC_PWM0 0xc | |
29 | #define APBC_PWM1 0x10 | |
30 | #define APBC_PWM2 0x14 | |
31 | #define APBC_PWM3 0x18 | |
32 | #define APBC_SSP0 0x1c | |
33 | #define APBC_SSP1 0x20 | |
34 | #define APBC_SSP2 0x4c | |
35 | #define APBCP_TWSI1 0x28 | |
36 | #define APBCP_UART2 0x1c | |
37 | #define APMU_SDH0 0x54 | |
38 | #define APMU_SDH1 0x58 | |
39 | #define APMU_USB 0x5c | |
40 | #define APMU_DISP0 0x4c | |
41 | #define APMU_CCIC0 0x50 | |
42 | #define APMU_DFC 0x60 | |
43 | #define MPMU_UART_PLL 0x14 | |
44 | ||
45 | static DEFINE_SPINLOCK(clk_lock); | |
46 | ||
2bd1e256 | 47 | static struct mmp_clk_factor_masks uart_factor_masks = { |
84a62e6e CX |
48 | .factor = 2, |
49 | .num_mask = 0x1fff, | |
50 | .den_mask = 0x1fff, | |
51 | .num_shift = 16, | |
52 | .den_shift = 0, | |
53 | }; | |
54 | ||
2bd1e256 | 55 | static struct mmp_clk_factor_tbl uart_factor_tbl[] = { |
84a62e6e CX |
56 | {.num = 8125, .den = 1536}, /*14.745MHZ */ |
57 | }; | |
58 | ||
59 | static const char *uart_parent[] = {"pll1_3_16", "uart_pll"}; | |
60 | static const char *ssp_parent[] = {"pll1_96", "pll1_48", "pll1_24", "pll1_12"}; | |
61 | static const char *sdh_parent[] = {"pll1_12", "pll1_13"}; | |
62 | static const char *disp_parent[] = {"pll1_2", "pll1_12"}; | |
63 | static const char *ccic_parent[] = {"pll1_2", "pll1_12"}; | |
64 | static const char *ccic_phy_parent[] = {"pll1_6", "pll1_12"}; | |
65 | ||
990f2f22 AB |
66 | void __init pxa910_clk_init(phys_addr_t mpmu_phys, phys_addr_t apmu_phys, |
67 | phys_addr_t apbc_phys, phys_addr_t apbcp_phys) | |
84a62e6e CX |
68 | { |
69 | struct clk *clk; | |
70 | struct clk *uart_pll; | |
71 | void __iomem *mpmu_base; | |
72 | void __iomem *apmu_base; | |
73 | void __iomem *apbcp_base; | |
74 | void __iomem *apbc_base; | |
75 | ||
990f2f22 | 76 | mpmu_base = ioremap(mpmu_phys, SZ_4K); |
84a62e6e CX |
77 | if (mpmu_base == NULL) { |
78 | pr_err("error to ioremap MPMU base\n"); | |
79 | return; | |
80 | } | |
81 | ||
990f2f22 | 82 | apmu_base = ioremap(apmu_phys, SZ_4K); |
84a62e6e CX |
83 | if (apmu_base == NULL) { |
84 | pr_err("error to ioremap APMU base\n"); | |
85 | return; | |
86 | } | |
87 | ||
990f2f22 | 88 | apbcp_base = ioremap(apbcp_phys, SZ_4K); |
84a62e6e CX |
89 | if (apbcp_base == NULL) { |
90 | pr_err("error to ioremap APBC extension base\n"); | |
91 | return; | |
92 | } | |
93 | ||
990f2f22 | 94 | apbc_base = ioremap(apbc_phys, SZ_4K); |
84a62e6e CX |
95 | if (apbc_base == NULL) { |
96 | pr_err("error to ioremap APBC base\n"); | |
97 | return; | |
98 | } | |
99 | ||
536630dd | 100 | clk = clk_register_fixed_rate(NULL, "clk32", NULL, 0, 3200); |
84a62e6e CX |
101 | clk_register_clkdev(clk, "clk32", NULL); |
102 | ||
536630dd | 103 | clk = clk_register_fixed_rate(NULL, "vctcxo", NULL, 0, 26000000); |
84a62e6e CX |
104 | clk_register_clkdev(clk, "vctcxo", NULL); |
105 | ||
536630dd | 106 | clk = clk_register_fixed_rate(NULL, "pll1", NULL, 0, 624000000); |
84a62e6e CX |
107 | clk_register_clkdev(clk, "pll1", NULL); |
108 | ||
109 | clk = clk_register_fixed_factor(NULL, "pll1_2", "pll1", | |
110 | CLK_SET_RATE_PARENT, 1, 2); | |
111 | clk_register_clkdev(clk, "pll1_2", NULL); | |
112 | ||
113 | clk = clk_register_fixed_factor(NULL, "pll1_4", "pll1_2", | |
114 | CLK_SET_RATE_PARENT, 1, 2); | |
115 | clk_register_clkdev(clk, "pll1_4", NULL); | |
116 | ||
117 | clk = clk_register_fixed_factor(NULL, "pll1_8", "pll1_4", | |
118 | CLK_SET_RATE_PARENT, 1, 2); | |
119 | clk_register_clkdev(clk, "pll1_8", NULL); | |
120 | ||
121 | clk = clk_register_fixed_factor(NULL, "pll1_16", "pll1_8", | |
122 | CLK_SET_RATE_PARENT, 1, 2); | |
123 | clk_register_clkdev(clk, "pll1_16", NULL); | |
124 | ||
125 | clk = clk_register_fixed_factor(NULL, "pll1_6", "pll1_2", | |
126 | CLK_SET_RATE_PARENT, 1, 3); | |
127 | clk_register_clkdev(clk, "pll1_6", NULL); | |
128 | ||
129 | clk = clk_register_fixed_factor(NULL, "pll1_12", "pll1_6", | |
130 | CLK_SET_RATE_PARENT, 1, 2); | |
131 | clk_register_clkdev(clk, "pll1_12", NULL); | |
132 | ||
133 | clk = clk_register_fixed_factor(NULL, "pll1_24", "pll1_12", | |
134 | CLK_SET_RATE_PARENT, 1, 2); | |
135 | clk_register_clkdev(clk, "pll1_24", NULL); | |
136 | ||
137 | clk = clk_register_fixed_factor(NULL, "pll1_48", "pll1_24", | |
138 | CLK_SET_RATE_PARENT, 1, 2); | |
139 | clk_register_clkdev(clk, "pll1_48", NULL); | |
140 | ||
141 | clk = clk_register_fixed_factor(NULL, "pll1_96", "pll1_48", | |
142 | CLK_SET_RATE_PARENT, 1, 2); | |
143 | clk_register_clkdev(clk, "pll1_96", NULL); | |
144 | ||
145 | clk = clk_register_fixed_factor(NULL, "pll1_13", "pll1", | |
146 | CLK_SET_RATE_PARENT, 1, 13); | |
147 | clk_register_clkdev(clk, "pll1_13", NULL); | |
148 | ||
149 | clk = clk_register_fixed_factor(NULL, "pll1_13_1_5", "pll1", | |
150 | CLK_SET_RATE_PARENT, 2, 3); | |
151 | clk_register_clkdev(clk, "pll1_13_1_5", NULL); | |
152 | ||
153 | clk = clk_register_fixed_factor(NULL, "pll1_2_1_5", "pll1", | |
154 | CLK_SET_RATE_PARENT, 2, 3); | |
155 | clk_register_clkdev(clk, "pll1_2_1_5", NULL); | |
156 | ||
157 | clk = clk_register_fixed_factor(NULL, "pll1_3_16", "pll1", | |
158 | CLK_SET_RATE_PARENT, 3, 16); | |
159 | clk_register_clkdev(clk, "pll1_3_16", NULL); | |
160 | ||
161 | uart_pll = mmp_clk_register_factor("uart_pll", "pll1_4", 0, | |
162 | mpmu_base + MPMU_UART_PLL, | |
163 | &uart_factor_masks, uart_factor_tbl, | |
61256133 | 164 | ARRAY_SIZE(uart_factor_tbl), &clk_lock); |
84a62e6e CX |
165 | clk_set_rate(uart_pll, 14745600); |
166 | clk_register_clkdev(uart_pll, "uart_pll", NULL); | |
167 | ||
168 | clk = mmp_clk_register_apbc("twsi0", "pll1_13_1_5", | |
169 | apbc_base + APBC_TWSI0, 10, 0, &clk_lock); | |
170 | clk_register_clkdev(clk, NULL, "pxa2xx-i2c.0"); | |
171 | ||
172 | clk = mmp_clk_register_apbc("twsi1", "pll1_13_1_5", | |
173 | apbcp_base + APBCP_TWSI1, 10, 0, &clk_lock); | |
174 | clk_register_clkdev(clk, NULL, "pxa2xx-i2c.1"); | |
175 | ||
176 | clk = mmp_clk_register_apbc("gpio", "vctcxo", | |
177 | apbc_base + APBC_GPIO, 10, 0, &clk_lock); | |
2cab0292 | 178 | clk_register_clkdev(clk, NULL, "mmp-gpio"); |
84a62e6e CX |
179 | |
180 | clk = mmp_clk_register_apbc("kpc", "clk32", | |
181 | apbc_base + APBC_KPC, 10, 0, &clk_lock); | |
182 | clk_register_clkdev(clk, NULL, "pxa27x-keypad"); | |
183 | ||
184 | clk = mmp_clk_register_apbc("rtc", "clk32", | |
185 | apbc_base + APBC_RTC, 10, 0, &clk_lock); | |
186 | clk_register_clkdev(clk, NULL, "sa1100-rtc"); | |
187 | ||
188 | clk = mmp_clk_register_apbc("pwm0", "pll1_48", | |
189 | apbc_base + APBC_PWM0, 10, 0, &clk_lock); | |
190 | clk_register_clkdev(clk, NULL, "pxa910-pwm.0"); | |
191 | ||
192 | clk = mmp_clk_register_apbc("pwm1", "pll1_48", | |
193 | apbc_base + APBC_PWM1, 10, 0, &clk_lock); | |
194 | clk_register_clkdev(clk, NULL, "pxa910-pwm.1"); | |
195 | ||
196 | clk = mmp_clk_register_apbc("pwm2", "pll1_48", | |
197 | apbc_base + APBC_PWM2, 10, 0, &clk_lock); | |
198 | clk_register_clkdev(clk, NULL, "pxa910-pwm.2"); | |
199 | ||
200 | clk = mmp_clk_register_apbc("pwm3", "pll1_48", | |
201 | apbc_base + APBC_PWM3, 10, 0, &clk_lock); | |
202 | clk_register_clkdev(clk, NULL, "pxa910-pwm.3"); | |
203 | ||
204 | clk = clk_register_mux(NULL, "uart0_mux", uart_parent, | |
819c1de3 JH |
205 | ARRAY_SIZE(uart_parent), |
206 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
84a62e6e CX |
207 | apbc_base + APBC_UART0, 4, 3, 0, &clk_lock); |
208 | clk_set_parent(clk, uart_pll); | |
209 | clk_register_clkdev(clk, "uart_mux.0", NULL); | |
210 | ||
211 | clk = mmp_clk_register_apbc("uart0", "uart0_mux", | |
212 | apbc_base + APBC_UART0, 10, 0, &clk_lock); | |
213 | clk_register_clkdev(clk, NULL, "pxa2xx-uart.0"); | |
214 | ||
215 | clk = clk_register_mux(NULL, "uart1_mux", uart_parent, | |
819c1de3 JH |
216 | ARRAY_SIZE(uart_parent), |
217 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
84a62e6e CX |
218 | apbc_base + APBC_UART1, 4, 3, 0, &clk_lock); |
219 | clk_set_parent(clk, uart_pll); | |
220 | clk_register_clkdev(clk, "uart_mux.1", NULL); | |
221 | ||
222 | clk = mmp_clk_register_apbc("uart1", "uart1_mux", | |
223 | apbc_base + APBC_UART1, 10, 0, &clk_lock); | |
224 | clk_register_clkdev(clk, NULL, "pxa2xx-uart.1"); | |
225 | ||
226 | clk = clk_register_mux(NULL, "uart2_mux", uart_parent, | |
819c1de3 JH |
227 | ARRAY_SIZE(uart_parent), |
228 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
84a62e6e CX |
229 | apbcp_base + APBCP_UART2, 4, 3, 0, &clk_lock); |
230 | clk_set_parent(clk, uart_pll); | |
231 | clk_register_clkdev(clk, "uart_mux.2", NULL); | |
232 | ||
233 | clk = mmp_clk_register_apbc("uart2", "uart2_mux", | |
234 | apbcp_base + APBCP_UART2, 10, 0, &clk_lock); | |
235 | clk_register_clkdev(clk, NULL, "pxa2xx-uart.2"); | |
236 | ||
237 | clk = clk_register_mux(NULL, "ssp0_mux", ssp_parent, | |
819c1de3 JH |
238 | ARRAY_SIZE(ssp_parent), |
239 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
84a62e6e CX |
240 | apbc_base + APBC_SSP0, 4, 3, 0, &clk_lock); |
241 | clk_register_clkdev(clk, "uart_mux.0", NULL); | |
242 | ||
243 | clk = mmp_clk_register_apbc("ssp0", "ssp0_mux", | |
244 | apbc_base + APBC_SSP0, 10, 0, &clk_lock); | |
245 | clk_register_clkdev(clk, NULL, "mmp-ssp.0"); | |
246 | ||
247 | clk = clk_register_mux(NULL, "ssp1_mux", ssp_parent, | |
819c1de3 JH |
248 | ARRAY_SIZE(ssp_parent), |
249 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
84a62e6e CX |
250 | apbc_base + APBC_SSP1, 4, 3, 0, &clk_lock); |
251 | clk_register_clkdev(clk, "ssp_mux.1", NULL); | |
252 | ||
253 | clk = mmp_clk_register_apbc("ssp1", "ssp1_mux", | |
254 | apbc_base + APBC_SSP1, 10, 0, &clk_lock); | |
255 | clk_register_clkdev(clk, NULL, "mmp-ssp.1"); | |
256 | ||
257 | clk = mmp_clk_register_apmu("dfc", "pll1_4", | |
258 | apmu_base + APMU_DFC, 0x19b, &clk_lock); | |
259 | clk_register_clkdev(clk, NULL, "pxa3xx-nand.0"); | |
260 | ||
261 | clk = clk_register_mux(NULL, "sdh0_mux", sdh_parent, | |
819c1de3 JH |
262 | ARRAY_SIZE(sdh_parent), |
263 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
84a62e6e CX |
264 | apmu_base + APMU_SDH0, 6, 1, 0, &clk_lock); |
265 | clk_register_clkdev(clk, "sdh0_mux", NULL); | |
266 | ||
267 | clk = mmp_clk_register_apmu("sdh0", "sdh_mux", | |
268 | apmu_base + APMU_SDH0, 0x1b, &clk_lock); | |
269 | clk_register_clkdev(clk, NULL, "sdhci-pxa.0"); | |
270 | ||
271 | clk = clk_register_mux(NULL, "sdh1_mux", sdh_parent, | |
819c1de3 JH |
272 | ARRAY_SIZE(sdh_parent), |
273 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
84a62e6e CX |
274 | apmu_base + APMU_SDH1, 6, 1, 0, &clk_lock); |
275 | clk_register_clkdev(clk, "sdh1_mux", NULL); | |
276 | ||
277 | clk = mmp_clk_register_apmu("sdh1", "sdh1_mux", | |
278 | apmu_base + APMU_SDH1, 0x1b, &clk_lock); | |
279 | clk_register_clkdev(clk, NULL, "sdhci-pxa.1"); | |
280 | ||
281 | clk = mmp_clk_register_apmu("usb", "usb_pll", | |
282 | apmu_base + APMU_USB, 0x9, &clk_lock); | |
283 | clk_register_clkdev(clk, "usb_clk", NULL); | |
284 | ||
285 | clk = mmp_clk_register_apmu("sph", "usb_pll", | |
286 | apmu_base + APMU_USB, 0x12, &clk_lock); | |
287 | clk_register_clkdev(clk, "sph_clk", NULL); | |
288 | ||
289 | clk = clk_register_mux(NULL, "disp0_mux", disp_parent, | |
819c1de3 JH |
290 | ARRAY_SIZE(disp_parent), |
291 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
84a62e6e CX |
292 | apmu_base + APMU_DISP0, 6, 1, 0, &clk_lock); |
293 | clk_register_clkdev(clk, "disp_mux.0", NULL); | |
294 | ||
295 | clk = mmp_clk_register_apmu("disp0", "disp0_mux", | |
296 | apmu_base + APMU_DISP0, 0x1b, &clk_lock); | |
297 | clk_register_clkdev(clk, NULL, "mmp-disp.0"); | |
298 | ||
299 | clk = clk_register_mux(NULL, "ccic0_mux", ccic_parent, | |
819c1de3 JH |
300 | ARRAY_SIZE(ccic_parent), |
301 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, | |
84a62e6e CX |
302 | apmu_base + APMU_CCIC0, 6, 1, 0, &clk_lock); |
303 | clk_register_clkdev(clk, "ccic_mux.0", NULL); | |
304 | ||
305 | clk = mmp_clk_register_apmu("ccic0", "ccic0_mux", | |
306 | apmu_base + APMU_CCIC0, 0x1b, &clk_lock); | |
307 | clk_register_clkdev(clk, "fnclk", "mmp-ccic.0"); | |
308 | ||
309 | clk = clk_register_mux(NULL, "ccic0_phy_mux", ccic_phy_parent, | |
310 | ARRAY_SIZE(ccic_phy_parent), | |
819c1de3 JH |
311 | CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT, |
312 | apmu_base + APMU_CCIC0, 7, 1, 0, &clk_lock); | |
84a62e6e CX |
313 | clk_register_clkdev(clk, "ccic_phy_mux.0", NULL); |
314 | ||
315 | clk = mmp_clk_register_apmu("ccic0_phy", "ccic0_phy_mux", | |
316 | apmu_base + APMU_CCIC0, 0x24, &clk_lock); | |
317 | clk_register_clkdev(clk, "phyclk", "mmp-ccic.0"); | |
318 | ||
319 | clk = clk_register_divider(NULL, "ccic0_sphy_div", "ccic0_mux", | |
320 | CLK_SET_RATE_PARENT, apmu_base + APMU_CCIC0, | |
321 | 10, 5, 0, &clk_lock); | |
322 | clk_register_clkdev(clk, "sphyclk_div", NULL); | |
323 | ||
324 | clk = mmp_clk_register_apmu("ccic0_sphy", "ccic0_sphy_div", | |
325 | apmu_base + APMU_CCIC0, 0x300, &clk_lock); | |
326 | clk_register_clkdev(clk, "sphyclk", "mmp-ccic.0"); | |
327 | } |