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Diffstat (limited to 'arch/arm/mach-omap2/powerdomains.h')
-rw-r--r-- | arch/arm/mach-omap2/powerdomains.h | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/powerdomains.h b/arch/arm/mach-omap2/powerdomains.h new file mode 100644 index 000000000000..1e151faebbd3 --- /dev/null +++ b/arch/arm/mach-omap2/powerdomains.h | |||
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1 | /* | ||
2 | * OMAP2/3 common powerdomain definitions | ||
3 | * | ||
4 | * Copyright (C) 2007-8 Texas Instruments, Inc. | ||
5 | * Copyright (C) 2007-8 Nokia Corporation | ||
6 | * | ||
7 | * Written by Paul Walmsley | ||
8 | * Debugging and integration fixes by Jouni Högander | ||
9 | * | ||
10 | * This program is free software; you can redistribute it and/or modify | ||
11 | * it under the terms of the GNU General Public License version 2 as | ||
12 | * published by the Free Software Foundation. | ||
13 | */ | ||
14 | |||
15 | #ifndef ARCH_ARM_MACH_OMAP2_POWERDOMAINS | ||
16 | #define ARCH_ARM_MACH_OMAP2_POWERDOMAINS | ||
17 | |||
18 | /* | ||
19 | * This file contains all of the powerdomains that have some element | ||
20 | * of software control for the OMAP24xx and OMAP34XX chips. | ||
21 | * | ||
22 | * A few notes: | ||
23 | * | ||
24 | * This is not an exhaustive listing of powerdomains on the chips; only | ||
25 | * powerdomains that can be controlled in software. | ||
26 | * | ||
27 | * A useful validation rule for struct powerdomain: | ||
28 | * Any powerdomain referenced by a wkdep_srcs or sleepdep_srcs array | ||
29 | * must have a dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really | ||
30 | * just software-controllable dependencies. Non-software-controllable | ||
31 | * dependencies do exist, but they are not encoded below (yet). | ||
32 | * | ||
33 | * 24xx does not support programmable sleep dependencies (SLEEPDEP) | ||
34 | * | ||
35 | */ | ||
36 | |||
37 | /* | ||
38 | * The names for the DSP/IVA2 powerdomains are confusing. | ||
39 | * | ||
40 | * Most OMAP chips have an on-board DSP. | ||
41 | * | ||
42 | * On the 2420, this is a 'C55 DSP called, simply, the DSP. Its | ||
43 | * powerdomain is called the "DSP power domain." On the 2430, the | ||
44 | * on-board DSP is a 'C64 DSP, now called the IVA2 or IVA2.1. Its | ||
45 | * powerdomain is still called the "DSP power domain." On the 3430, | ||
46 | * the DSP is a 'C64 DSP like the 2430, also known as the IVA2; but | ||
47 | * its powerdomain is now called the "IVA2 power domain." | ||
48 | * | ||
49 | * The 2420 also has something called the IVA, which is a separate ARM | ||
50 | * core, and has nothing to do with the DSP/IVA2. | ||
51 | * | ||
52 | * Ideally the DSP/IVA2 could just be the same powerdomain, but the PRCM | ||
53 | * address offset is different between the C55 and C64 DSPs. | ||
54 | * | ||
55 | * The overly-specific dep_bit names are due to a bit name collision | ||
56 | * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift | ||
57 | * value are the same for all powerdomains: 2 | ||
58 | */ | ||
59 | |||
60 | /* | ||
61 | * XXX should dep_bit be a mask, so we can test to see if it is 0 as a | ||
62 | * sanity check? | ||
63 | * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE | ||
64 | */ | ||
65 | |||
66 | #include <mach/powerdomain.h> | ||
67 | |||
68 | #include "prcm-common.h" | ||
69 | #include "prm.h" | ||
70 | #include "cm.h" | ||
71 | |||
72 | /* OMAP2/3-common powerdomains and wakeup dependencies */ | ||
73 | |||
74 | /* | ||
75 | * 2420/2430 PM_WKDEP_GFX: CORE, MPU, WKUP | ||
76 | * 3430ES1 PM_WKDEP_GFX: adds IVA2, removes CORE | ||
77 | * 3430ES2 PM_WKDEP_SGX: adds IVA2, removes CORE | ||
78 | */ | ||
79 | static struct pwrdm_dep gfx_sgx_wkdeps[] = { | ||
80 | { | ||
81 | .pwrdm_name = "core_pwrdm", | ||
82 | .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX) | ||
83 | }, | ||
84 | { | ||
85 | .pwrdm_name = "iva2_pwrdm", | ||
86 | .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430) | ||
87 | }, | ||
88 | { | ||
89 | .pwrdm_name = "mpu_pwrdm", | ||
90 | .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | | ||
91 | CHIP_IS_OMAP3430) | ||
92 | }, | ||
93 | { | ||
94 | .pwrdm_name = "wkup_pwrdm", | ||
95 | .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | | ||
96 | CHIP_IS_OMAP3430) | ||
97 | }, | ||
98 | { NULL }, | ||
99 | }; | ||
100 | |||
101 | /* | ||
102 | * 3430: CM_SLEEPDEP_CAM: MPU | ||
103 | * 3430ES1: CM_SLEEPDEP_GFX: MPU | ||
104 | * 3430ES2: CM_SLEEPDEP_SGX: MPU | ||
105 | */ | ||
106 | static struct pwrdm_dep cam_gfx_sleepdeps[] = { | ||
107 | { | ||
108 | .pwrdm_name = "mpu_pwrdm", | ||
109 | .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP3430) | ||
110 | }, | ||
111 | { NULL }, | ||
112 | }; | ||
113 | |||
114 | |||
115 | #include "powerdomains24xx.h" | ||
116 | #include "powerdomains34xx.h" | ||
117 | |||
118 | |||
119 | /* | ||
120 | * OMAP2/3 common powerdomains | ||
121 | */ | ||
122 | |||
123 | /* | ||
124 | * The GFX powerdomain is not present on 3430ES2, but currently we do not | ||
125 | * have a macro to filter it out at compile-time. | ||
126 | */ | ||
127 | static struct powerdomain gfx_pwrdm = { | ||
128 | .name = "gfx_pwrdm", | ||
129 | .prcm_offs = GFX_MOD, | ||
130 | .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | | ||
131 | CHIP_IS_OMAP3430ES1), | ||
132 | .wkdep_srcs = gfx_sgx_wkdeps, | ||
133 | .sleepdep_srcs = cam_gfx_sleepdeps, | ||
134 | .pwrsts = PWRSTS_OFF_RET_ON, | ||
135 | .pwrsts_logic_ret = PWRDM_POWER_RET, | ||
136 | .banks = 1, | ||
137 | .pwrsts_mem_ret = { | ||
138 | [0] = PWRDM_POWER_RET, /* MEMRETSTATE */ | ||
139 | }, | ||
140 | .pwrsts_mem_on = { | ||
141 | [0] = PWRDM_POWER_ON, /* MEMONSTATE */ | ||
142 | }, | ||
143 | }; | ||
144 | |||
145 | static struct powerdomain wkup_pwrdm = { | ||
146 | .name = "wkup_pwrdm", | ||
147 | .prcm_offs = WKUP_MOD, | ||
148 | .omap_chip = OMAP_CHIP_INIT(CHIP_IS_OMAP24XX | CHIP_IS_OMAP3430), | ||
149 | .dep_bit = OMAP_EN_WKUP_SHIFT, | ||
150 | }; | ||
151 | |||
152 | |||
153 | |||
154 | /* As powerdomains are added or removed above, this list must also be changed */ | ||
155 | static struct powerdomain *powerdomains_omap[] __initdata = { | ||
156 | |||
157 | &gfx_pwrdm, | ||
158 | &wkup_pwrdm, | ||
159 | |||
160 | #ifdef CONFIG_ARCH_OMAP24XX | ||
161 | &dsp_pwrdm, | ||
162 | &mpu_24xx_pwrdm, | ||
163 | &core_24xx_pwrdm, | ||
164 | #endif | ||
165 | |||
166 | #ifdef CONFIG_ARCH_OMAP2430 | ||
167 | &mdm_pwrdm, | ||
168 | #endif | ||
169 | |||
170 | #ifdef CONFIG_ARCH_OMAP34XX | ||
171 | &iva2_pwrdm, | ||
172 | &mpu_34xx_pwrdm, | ||
173 | &neon_pwrdm, | ||
174 | &core_34xx_pwrdm, | ||
175 | &cam_pwrdm, | ||
176 | &dss_pwrdm, | ||
177 | &per_pwrdm, | ||
178 | &emu_pwrdm, | ||
179 | &sgx_pwrdm, | ||
180 | &usbhost_pwrdm, | ||
181 | #endif | ||
182 | |||
183 | NULL | ||
184 | }; | ||
185 | |||
186 | |||
187 | #endif | ||