1 /*
2 * OMAP3 powerdomain definitions
3 *
4 * Copyright (C) 2007-2008 Texas Instruments, Inc.
5 * Copyright (C) 2007-2011 Nokia Corporation
6 *
7 * Paul Walmsley, Jouni Högander
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16
17 #include "powerdomain.h"
18 #include "powerdomains2xxx_3xxx_data.h"
19
20 #include "prcm-common.h"
21 #include "prm2xxx_3xxx.h"
22 #include "prm-regbits-34xx.h"
23 #include "cm2xxx_3xxx.h"
24 #include "cm-regbits-34xx.h"
25
26 /*
27 * 34XX-specific powerdomains, dependencies
28 */
29
30 #ifdef CONFIG_ARCH_OMAP3
31
32 /*
33 * Powerdomains
34 */
35
36 static struct powerdomain iva2_pwrdm = {
37 .name = "iva2_pwrdm",
38 .prcm_offs = OMAP3430_IVA2_MOD,
39 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
40 .pwrsts = PWRSTS_OFF_RET_ON,
41 .pwrsts_logic_ret = PWRSTS_OFF_RET,
42 .banks = 4,
43 .pwrsts_mem_ret = {
44 [0] = PWRSTS_OFF_RET,
45 [1] = PWRSTS_OFF_RET,
46 [2] = PWRSTS_OFF_RET,
47 [3] = PWRSTS_OFF_RET,
48 },
49 .pwrsts_mem_on = {
50 [0] = PWRSTS_ON,
51 [1] = PWRSTS_ON,
52 [2] = PWRSTS_OFF_ON,
53 [3] = PWRSTS_ON,
54 },
55 };
56
57 static struct powerdomain mpu_3xxx_pwrdm = {
58 .name = "mpu_pwrdm",
59 .prcm_offs = MPU_MOD,
60 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
61 .pwrsts = PWRSTS_OFF_RET_ON,
62 .pwrsts_logic_ret = PWRSTS_OFF_RET,
63 .flags = PWRDM_HAS_MPU_QUIRK,
64 .banks = 1,
65 .pwrsts_mem_ret = {
66 [0] = PWRSTS_OFF_RET,
67 },
68 .pwrsts_mem_on = {
69 [0] = PWRSTS_OFF_ON,
70 },
71 };
72
73 /*
74 * The USBTLL Save-and-Restore mechanism is broken on
75 * 3430s up to ES3.0 and 3630ES1.0. Hence this feature
76 * needs to be disabled on these chips.
77 * Refer: 3430 errata ID i459 and 3630 errata ID i579
78 *
79 * Note: setting the SAR flag could help for errata ID i478
80 * which applies to 3430 <= ES3.1, but since the SAR feature
81 * is broken, do not use it.
82 */
83 static struct powerdomain core_3xxx_pre_es3_1_pwrdm = {
84 .name = "core_pwrdm",
85 .prcm_offs = CORE_MOD,
86 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES1 |
87 CHIP_IS_OMAP3430ES2 |
88 CHIP_IS_OMAP3430ES3_0 |
89 CHIP_IS_OMAP3630ES1),
90 .pwrsts = PWRSTS_OFF_RET_ON,
91 .pwrsts_logic_ret = PWRSTS_OFF_RET,
92 .banks = 2,
93 .pwrsts_mem_ret = {
94 [0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */
95 [1] = PWRSTS_OFF_RET, /* MEM2RETSTATE */
96 },
97 .pwrsts_mem_on = {
98 [0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
99 [1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
100 },
101 };
102
103 static struct powerdomain core_3xxx_es3_1_pwrdm = {
104 .name = "core_pwrdm",
105 .prcm_offs = CORE_MOD,
106 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430ES3_1 |
107 CHIP_GE_OMAP3630ES1_1),
108 .pwrsts = PWRSTS_OFF_RET_ON,
109 .pwrsts_logic_ret = PWRSTS_OFF_RET,
110 /*
111 * Setting the SAR flag for errata ID i478 which applies
112 * to 3430 <= ES3.1
113 */
114 .flags = PWRDM_HAS_HDWR_SAR, /* for USBTLL only */
115 .banks = 2,
116 .pwrsts_mem_ret = {
117 [0] = PWRSTS_OFF_RET, /* MEM1RETSTATE */
118 [1] = PWRSTS_OFF_RET, /* MEM2RETSTATE */
119 },
120 .pwrsts_mem_on = {
121 [0] = PWRSTS_OFF_RET_ON, /* MEM1ONSTATE */
122 [1] = PWRSTS_OFF_RET_ON, /* MEM2ONSTATE */
123 },
124 };
125
126 static struct powerdomain dss_pwrdm = {
127 .name = "dss_pwrdm",
128 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
129 .prcm_offs = OMAP3430_DSS_MOD,
130 .pwrsts = PWRSTS_OFF_RET_ON,
131 .pwrsts_logic_ret = PWRSTS_RET,
132 .banks = 1,
133 .pwrsts_mem_ret = {
134 [0] = PWRSTS_RET, /* MEMRETSTATE */
135 },
136 .pwrsts_mem_on = {
137 [0] = PWRSTS_ON, /* MEMONSTATE */
138 },
139 };
140
141 /*
142 * Although the 34XX TRM Rev K Table 4-371 notes that retention is a
143 * possible SGX powerstate, the SGX device itself does not support
144 * retention.
145 */
146 static struct powerdomain sgx_pwrdm = {
147 .name = "sgx_pwrdm",
148 .prcm_offs = OMAP3430ES2_SGX_MOD,
149 .omap_chip = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
150 /* XXX This is accurate for 3430 SGX, but what about GFX? */
151 .pwrsts = PWRSTS_OFF_ON,
152 .pwrsts_logic_ret = PWRSTS_RET,
153 .banks = 1,
154 .pwrsts_mem_ret = {
155 [0] = PWRSTS_RET, /* MEMRETSTATE */
156 },
157 .pwrsts_mem_on = {
158 [0] = PWRSTS_ON, /* MEMONSTATE */
159 },
160 };
161
162 static struct powerdomain cam_pwrdm = {
163 .name = "cam_pwrdm",
164 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
165 .prcm_offs = OMAP3430_CAM_MOD,
166 .pwrsts = PWRSTS_OFF_RET_ON,
167 .pwrsts_logic_ret = PWRSTS_RET,
168 .banks = 1,
169 .pwrsts_mem_ret = {
170 [0] = PWRSTS_RET, /* MEMRETSTATE */
171 },
172 .pwrsts_mem_on = {
173 [0] = PWRSTS_ON, /* MEMONSTATE */
174 },
175 };
176
177 static struct powerdomain per_pwrdm = {
178 .name = "per_pwrdm",
179 .prcm_offs = OMAP3430_PER_MOD,
180 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
181 .pwrsts = PWRSTS_OFF_RET_ON,
182 .pwrsts_logic_ret = PWRSTS_OFF_RET,
183 .banks = 1,
184 .pwrsts_mem_ret = {
185 [0] = PWRSTS_RET, /* MEMRETSTATE */
186 },
187 .pwrsts_mem_on = {
188 [0] = PWRSTS_ON, /* MEMONSTATE */
189 },
190 };
191
192 static struct powerdomain emu_pwrdm = {
193 .name = "emu_pwrdm",
194 .prcm_offs = OMAP3430_EMU_MOD,
195 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
196 };
197
198 static struct powerdomain neon_pwrdm = {
199 .name = "neon_pwrdm",
200 .prcm_offs = OMAP3430_NEON_MOD,
201 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
202 .pwrsts = PWRSTS_OFF_RET_ON,
203 .pwrsts_logic_ret = PWRSTS_RET,
204 };
205
206 static struct powerdomain usbhost_pwrdm = {
207 .name = "usbhost_pwrdm",
208 .prcm_offs = OMAP3430ES2_USBHOST_MOD,
209 .omap_chip = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
210 .pwrsts = PWRSTS_OFF_RET_ON,
211 .pwrsts_logic_ret = PWRSTS_RET,
212 /*
213 * REVISIT: Enabling usb host save and restore mechanism seems to
214 * leave the usb host domain permanently in ACTIVE mode after
215 * changing the usb host power domain state from OFF to active once.
216 * Disabling for now.
217 */
218 /*.flags = PWRDM_HAS_HDWR_SAR,*/ /* for USBHOST ctrlr only */
219 .banks = 1,
220 .pwrsts_mem_ret = {
221 [0] = PWRSTS_RET, /* MEMRETSTATE */
222 },
223 .pwrsts_mem_on = {
224 [0] = PWRSTS_ON, /* MEMONSTATE */
225 },
226 };
227
228 static struct powerdomain dpll1_pwrdm = {
229 .name = "dpll1_pwrdm",
230 .prcm_offs = MPU_MOD,
231 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
232 };
233
234 static struct powerdomain dpll2_pwrdm = {
235 .name = "dpll2_pwrdm",
236 .prcm_offs = OMAP3430_IVA2_MOD,
237 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
238 };
239
240 static struct powerdomain dpll3_pwrdm = {
241 .name = "dpll3_pwrdm",
242 .prcm_offs = PLL_MOD,
243 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
244 };
245
246 static struct powerdomain dpll4_pwrdm = {
247 .name = "dpll4_pwrdm",
248 .prcm_offs = PLL_MOD,
249 .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430),
250 };
251
252 static struct powerdomain dpll5_pwrdm = {
253 .name = "dpll5_pwrdm",
254 .prcm_offs = PLL_MOD,
255 .omap_chip = OMAP_CHIP_INIT(CHIP_GE_OMAP3430ES2),
256 };
257
258 /* As powerdomains are added or removed above, this list must also be changed */
259 static struct powerdomain *powerdomains_omap3xxx[] __initdata = {
260
261 &wkup_omap2_pwrdm,
262 &gfx_omap2_pwrdm,
263 &iva2_pwrdm,
264 &mpu_3xxx_pwrdm,
265 &neon_pwrdm,
266 &core_3xxx_pre_es3_1_pwrdm,
267 &core_3xxx_es3_1_pwrdm,
268 &cam_pwrdm,
269 &dss_pwrdm,
270 &per_pwrdm,
271 &emu_pwrdm,
272 &sgx_pwrdm,
273 &usbhost_pwrdm,
274 &dpll1_pwrdm,
275 &dpll2_pwrdm,
276 &dpll3_pwrdm,
277 &dpll4_pwrdm,
278 &dpll5_pwrdm,
279 #endif
280 NULL
281 };
282
283
omap3xxx_powerdomains_init(void)284 void __init omap3xxx_powerdomains_init(void)
285 {
286 pwrdm_init(powerdomains_omap3xxx, &omap3_pwrdm_operations);
287 }
288