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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / e8d5dde4473514327b5ea67fb69d8fdd8410240c / . / drivers / clk / imx / clk-imx8qxp.c
blob: 0db4539a1f8ada1762c348781d98a702d37bf589 [file] [log] [blame]
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright 2018 NXP
4 * Peng Fan <peng.fan@nxp.com>
5 */
6
7#include <common.h>
8#include <clk-uclass.h>
9#include <dm.h>
10#include <asm/arch/sci/sci.h>
11#include <asm/arch/clock.h>
12#include <dt-bindings/clock/imx8qxp-clock.h>
13#include <dt-bindings/soc/imx_rsrc.h>
14#include <misc.h>
15
16#include "clk-imx8.h"
17
18#if CONFIG_IS_ENABLED(CMD_CLK)
19struct imx8_clks imx8_clk_names[] = {
20 { IMX8QXP_A35_DIV, "A35_DIV" },
21 { IMX8QXP_I2C0_CLK, "I2C0" },
22 { IMX8QXP_I2C1_CLK, "I2C1" },
23 { IMX8QXP_I2C2_CLK, "I2C2" },
24 { IMX8QXP_I2C3_CLK, "I2C3" },
25 { IMX8QXP_UART0_CLK, "UART0" },
26 { IMX8QXP_UART1_CLK, "UART1" },
27 { IMX8QXP_UART2_CLK, "UART2" },
28 { IMX8QXP_UART3_CLK, "UART3" },
29 { IMX8QXP_SDHC0_CLK, "SDHC0" },
30 { IMX8QXP_SDHC1_CLK, "SDHC1" },
31 { IMX8QXP_ENET0_AHB_CLK, "ENET0_AHB" },
32 { IMX8QXP_ENET0_IPG_CLK, "ENET0_IPG" },
33 { IMX8QXP_ENET0_REF_DIV, "ENET0_REF" },
34 { IMX8QXP_ENET0_PTP_CLK, "ENET0_PTP" },
35 { IMX8QXP_ENET1_AHB_CLK, "ENET1_AHB" },
36 { IMX8QXP_ENET1_IPG_CLK, "ENET1_IPG" },
37 { IMX8QXP_ENET1_REF_DIV, "ENET1_REF" },
38 { IMX8QXP_ENET1_PTP_CLK, "ENET1_PTP" },
39};
40
41int num_clks = ARRAY_SIZE(imx8_clk_names);
42#endif
43
44ulong imx8_clk_get_rate(struct clk *clk)
45{
46 sc_pm_clk_t pm_clk;
47 ulong rate;
48 u16 resource;
49 int ret;
50
51 debug("%s(#%lu)\n", __func__, clk->id);
52
53 switch (clk->id) {
54 case IMX8QXP_A35_DIV:
55 resource = SC_R_A35;
56 pm_clk = SC_PM_CLK_CPU;
57 break;
58 case IMX8QXP_I2C0_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]59 case IMX8QXP_I2C0_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]60 resource = SC_R_I2C_0;
61 pm_clk = SC_PM_CLK_PER;
62 break;
63 case IMX8QXP_I2C1_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]64 case IMX8QXP_I2C1_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]65 resource = SC_R_I2C_1;
66 pm_clk = SC_PM_CLK_PER;
67 break;
68 case IMX8QXP_I2C2_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]69 case IMX8QXP_I2C2_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]70 resource = SC_R_I2C_2;
71 pm_clk = SC_PM_CLK_PER;
72 break;
73 case IMX8QXP_I2C3_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]74 case IMX8QXP_I2C3_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]75 resource = SC_R_I2C_3;
76 pm_clk = SC_PM_CLK_PER;
77 break;
78 case IMX8QXP_SDHC0_IPG_CLK:
79 case IMX8QXP_SDHC0_CLK:
80 case IMX8QXP_SDHC0_DIV:
81 resource = SC_R_SDHC_0;
82 pm_clk = SC_PM_CLK_PER;
83 break;
84 case IMX8QXP_SDHC1_IPG_CLK:
85 case IMX8QXP_SDHC1_CLK:
86 case IMX8QXP_SDHC1_DIV:
87 resource = SC_R_SDHC_1;
88 pm_clk = SC_PM_CLK_PER;
89 break;
90 case IMX8QXP_UART0_IPG_CLK:
91 case IMX8QXP_UART0_CLK:
92 resource = SC_R_UART_0;
93 pm_clk = SC_PM_CLK_PER;
94 break;
95 case IMX8QXP_UART1_CLK:
96 resource = SC_R_UART_1;
97 pm_clk = SC_PM_CLK_PER;
98 break;
99 case IMX8QXP_UART2_CLK:
100 resource = SC_R_UART_2;
101 pm_clk = SC_PM_CLK_PER;
102 break;
103 case IMX8QXP_UART3_CLK:
104 resource = SC_R_UART_3;
105 pm_clk = SC_PM_CLK_PER;
106 break;
107 case IMX8QXP_ENET0_IPG_CLK:
108 case IMX8QXP_ENET0_AHB_CLK:
109 case IMX8QXP_ENET0_REF_DIV:
110 case IMX8QXP_ENET0_PTP_CLK:
111 resource = SC_R_ENET_0;
112 pm_clk = SC_PM_CLK_PER;
113 break;
114 case IMX8QXP_ENET1_IPG_CLK:
115 case IMX8QXP_ENET1_AHB_CLK:
116 case IMX8QXP_ENET1_REF_DIV:
117 case IMX8QXP_ENET1_PTP_CLK:
118 resource = SC_R_ENET_1;
119 pm_clk = SC_PM_CLK_PER;
120 break;
121 default:
122 if (clk->id < IMX8QXP_UART0_IPG_CLK ||
123 clk->id >= IMX8QXP_CLK_END) {
124 printf("%s(Invalid clk ID #%lu)\n",
125 __func__, clk->id);
126 return -EINVAL;
127 }
128 return -ENOTSUPP;
129 };
130
131 ret = sc_pm_get_clock_rate(-1, resource, pm_clk,
132 (sc_pm_clock_rate_t *)&rate);
133 if (ret) {
134 printf("%s err %d\n", __func__, ret);
135 return ret;
136 }
137
138 return rate;
139}
140
141ulong imx8_clk_set_rate(struct clk *clk, unsigned long rate)
142{
143 sc_pm_clk_t pm_clk;
144 u32 new_rate = rate;
145 u16 resource;
146 int ret;
147
148 debug("%s(#%lu), rate: %lu\n", __func__, clk->id, rate);
149
150 switch (clk->id) {
151 case IMX8QXP_I2C0_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]152 case IMX8QXP_I2C0_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]153 resource = SC_R_I2C_0;
154 pm_clk = SC_PM_CLK_PER;
155 break;
156 case IMX8QXP_I2C1_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]157 case IMX8QXP_I2C1_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]158 resource = SC_R_I2C_1;
159 pm_clk = SC_PM_CLK_PER;
160 break;
161 case IMX8QXP_I2C2_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]162 case IMX8QXP_I2C2_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]163 resource = SC_R_I2C_2;
164 pm_clk = SC_PM_CLK_PER;
165 break;
166 case IMX8QXP_I2C3_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]167 case IMX8QXP_I2C3_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]168 resource = SC_R_I2C_3;
169 pm_clk = SC_PM_CLK_PER;
170 break;
171 case IMX8QXP_UART0_CLK:
172 resource = SC_R_UART_0;
173 pm_clk = SC_PM_CLK_PER;
174 break;
175 case IMX8QXP_UART1_CLK:
176 resource = SC_R_UART_1;
177 pm_clk = SC_PM_CLK_PER;
178 break;
179 case IMX8QXP_UART2_CLK:
180 resource = SC_R_UART_2;
181 pm_clk = SC_PM_CLK_PER;
182 break;
183 case IMX8QXP_UART3_CLK:
184 resource = SC_R_UART_3;
185 pm_clk = SC_PM_CLK_PER;
186 break;
187 case IMX8QXP_SDHC0_IPG_CLK:
188 case IMX8QXP_SDHC0_CLK:
189 case IMX8QXP_SDHC0_DIV:
190 resource = SC_R_SDHC_0;
191 pm_clk = SC_PM_CLK_PER;
192 break;
193 case IMX8QXP_SDHC1_SEL:
194 case IMX8QXP_SDHC0_SEL:
195 return 0;
196 case IMX8QXP_SDHC1_IPG_CLK:
197 case IMX8QXP_SDHC1_CLK:
198 case IMX8QXP_SDHC1_DIV:
199 resource = SC_R_SDHC_1;
200 pm_clk = SC_PM_CLK_PER;
201 break;
202 case IMX8QXP_ENET0_IPG_CLK:
203 case IMX8QXP_ENET0_AHB_CLK:
204 case IMX8QXP_ENET0_REF_DIV:
205 case IMX8QXP_ENET0_PTP_CLK:
206 resource = SC_R_ENET_0;
207 pm_clk = SC_PM_CLK_PER;
208 break;
209 case IMX8QXP_ENET1_IPG_CLK:
210 case IMX8QXP_ENET1_AHB_CLK:
211 case IMX8QXP_ENET1_REF_DIV:
212 case IMX8QXP_ENET1_PTP_CLK:
213 resource = SC_R_ENET_1;
214 pm_clk = SC_PM_CLK_PER;
215 break;
216 default:
217 if (clk->id < IMX8QXP_UART0_IPG_CLK ||
218 clk->id >= IMX8QXP_CLK_END) {
219 printf("%s(Invalid clk ID #%lu)\n",
220 __func__, clk->id);
221 return -EINVAL;
222 }
223 return -ENOTSUPP;
224 };
225
226 ret = sc_pm_set_clock_rate(-1, resource, pm_clk, &new_rate);
227 if (ret) {
228 printf("%s err %d\n", __func__, ret);
229 return ret;
230 }
231
232 return new_rate;
233}
234
235int __imx8_clk_enable(struct clk *clk, bool enable)
236{
237 sc_pm_clk_t pm_clk;
238 u16 resource;
239 int ret;
240
241 debug("%s(#%lu)\n", __func__, clk->id);
242
243 switch (clk->id) {
244 case IMX8QXP_I2C0_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]245 case IMX8QXP_I2C0_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]246 resource = SC_R_I2C_0;
247 pm_clk = SC_PM_CLK_PER;
248 break;
249 case IMX8QXP_I2C1_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]250 case IMX8QXP_I2C1_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]251 resource = SC_R_I2C_1;
252 pm_clk = SC_PM_CLK_PER;
253 break;
254 case IMX8QXP_I2C2_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]255 case IMX8QXP_I2C2_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]256 resource = SC_R_I2C_2;
257 pm_clk = SC_PM_CLK_PER;
258 break;
259 case IMX8QXP_I2C3_CLK:
Anatolij Gustschinf35237e2020-01-07 14:03:03 +0100[diff] [blame]260 case IMX8QXP_I2C3_IPG_CLK:
Peng Fan98c63a72019-03-05 02:32:33 +0000[diff] [blame]261 resource = SC_R_I2C_3;
262 pm_clk = SC_PM_CLK_PER;
263 break;
264 case IMX8QXP_UART0_CLK:
265 resource = SC_R_UART_0;
266 pm_clk = SC_PM_CLK_PER;
267 break;
268 case IMX8QXP_UART1_CLK:
269 resource = SC_R_UART_1;
270 pm_clk = SC_PM_CLK_PER;
271 break;
272 case IMX8QXP_UART2_CLK:
273 resource = SC_R_UART_2;
274 pm_clk = SC_PM_CLK_PER;
275 break;
276 case IMX8QXP_UART3_CLK:
277 resource = SC_R_UART_3;
278 pm_clk = SC_PM_CLK_PER;
279 break;
280 case IMX8QXP_SDHC0_IPG_CLK:
281 case IMX8QXP_SDHC0_CLK:
282 case IMX8QXP_SDHC0_DIV:
283 resource = SC_R_SDHC_0;
284 pm_clk = SC_PM_CLK_PER;
285 break;
286 case IMX8QXP_SDHC1_IPG_CLK:
287 case IMX8QXP_SDHC1_CLK:
288 case IMX8QXP_SDHC1_DIV:
289 resource = SC_R_SDHC_1;
290 pm_clk = SC_PM_CLK_PER;
291 break;
292 case IMX8QXP_ENET0_IPG_CLK:
293 case IMX8QXP_ENET0_AHB_CLK:
294 case IMX8QXP_ENET0_REF_DIV:
295 case IMX8QXP_ENET0_PTP_CLK:
296 resource = SC_R_ENET_0;
297 pm_clk = SC_PM_CLK_PER;
298 break;
299 case IMX8QXP_ENET1_IPG_CLK:
300 case IMX8QXP_ENET1_AHB_CLK:
301 case IMX8QXP_ENET1_REF_DIV:
302 case IMX8QXP_ENET1_PTP_CLK:
303 resource = SC_R_ENET_1;
304 pm_clk = SC_PM_CLK_PER;
305 break;
306 default:
307 if (clk->id < IMX8QXP_UART0_IPG_CLK ||
308 clk->id >= IMX8QXP_CLK_END) {
309 printf("%s(Invalid clk ID #%lu)\n",
310 __func__, clk->id);
311 return -EINVAL;
312 }
313 return -ENOTSUPP;
314 }
315
316 ret = sc_pm_clock_enable(-1, resource, pm_clk, enable, 0);
317 if (ret) {
318 printf("%s err %d\n", __func__, ret);
319 return ret;
320 }
321
322 return 0;
323}