diff options
Diffstat (limited to 'arch/arm/mach-omap2/clockdomains2430_data.c')
-rw-r--r-- | arch/arm/mach-omap2/clockdomains2430_data.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/clockdomains2430_data.c b/arch/arm/mach-omap2/clockdomains2430_data.c new file mode 100644 index 000000000000..3645ed044890 --- /dev/null +++ b/arch/arm/mach-omap2/clockdomains2430_data.c | |||
@@ -0,0 +1,181 @@ | |||
1 | /* | ||
2 | * OMAP2xxx clockdomains | ||
3 | * | ||
4 | * Copyright (C) 2008-2009 Texas Instruments, Inc. | ||
5 | * Copyright (C) 2008-2010 Nokia Corporation | ||
6 | * | ||
7 | * Paul Walmsley, Jouni Högander | ||
8 | * | ||
9 | * This file contains clockdomains and clockdomain wakeup dependencies | ||
10 | * for OMAP2xxx chips. Some notes: | ||
11 | * | ||
12 | * A useful validation rule for struct clockdomain: Any clockdomain | ||
13 | * referenced by a wkdep_srcs must have a dep_bit assigned. So | ||
14 | * wkdep_srcs are really just software-controllable dependencies. | ||
15 | * Non-software-controllable dependencies do exist, but they are not | ||
16 | * encoded below (yet). | ||
17 | * | ||
18 | * 24xx does not support programmable sleep dependencies (SLEEPDEP) | ||
19 | * | ||
20 | * The overly-specific dep_bit names are due to a bit name collision | ||
21 | * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift | ||
22 | * value are the same for all powerdomains: 2 | ||
23 | * | ||
24 | * XXX should dep_bit be a mask, so we can test to see if it is 0 as a | ||
25 | * sanity check? | ||
26 | * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE | ||
27 | */ | ||
28 | |||
29 | /* | ||
30 | * To-Do List | ||
31 | * -> Port the Sleep/Wakeup dependencies for the domains | ||
32 | * from the Power domain framework | ||
33 | */ | ||
34 | |||
35 | #include <linux/kernel.h> | ||
36 | #include <linux/io.h> | ||
37 | |||
38 | #include "clockdomain.h" | ||
39 | #include "prm2xxx_3xxx.h" | ||
40 | #include "cm2xxx_3xxx.h" | ||
41 | #include "cm-regbits-24xx.h" | ||
42 | #include "prm-regbits-24xx.h" | ||
43 | |||
44 | /* | ||
45 | * Clockdomain dependencies for wkdeps | ||
46 | * | ||
47 | * XXX Hardware dependencies (e.g., dependencies that cannot be | ||
48 | * changed in software) are not included here yet, but should be. | ||
49 | */ | ||
50 | |||
51 | /* Wakeup dependency source arrays */ | ||
52 | |||
53 | /* 2430-specific possible wakeup dependencies */ | ||
54 | |||
55 | /* 2430 PM_WKDEP_CORE: DSP, GFX, MPU, WKUP, MDM */ | ||
56 | static struct clkdm_dep core_2430_wkdeps[] = { | ||
57 | { .clkdm_name = "dsp_clkdm" }, | ||
58 | { .clkdm_name = "gfx_clkdm" }, | ||
59 | { .clkdm_name = "mpu_clkdm" }, | ||
60 | { .clkdm_name = "wkup_clkdm" }, | ||
61 | { .clkdm_name = "mdm_clkdm" }, | ||
62 | { NULL }, | ||
63 | }; | ||
64 | |||
65 | /* 2430 PM_WKDEP_MPU: CORE, DSP, WKUP, MDM */ | ||
66 | static struct clkdm_dep mpu_2430_wkdeps[] = { | ||
67 | { .clkdm_name = "core_l3_clkdm" }, | ||
68 | { .clkdm_name = "core_l4_clkdm" }, | ||
69 | { .clkdm_name = "dsp_clkdm" }, | ||
70 | { .clkdm_name = "wkup_clkdm" }, | ||
71 | { .clkdm_name = "mdm_clkdm" }, | ||
72 | { NULL }, | ||
73 | }; | ||
74 | |||
75 | /* 2430 PM_WKDEP_MDM: CORE, MPU, WKUP */ | ||
76 | static struct clkdm_dep mdm_2430_wkdeps[] = { | ||
77 | { .clkdm_name = "core_l3_clkdm" }, | ||
78 | { .clkdm_name = "core_l4_clkdm" }, | ||
79 | { .clkdm_name = "mpu_clkdm" }, | ||
80 | { .clkdm_name = "wkup_clkdm" }, | ||
81 | { NULL }, | ||
82 | }; | ||
83 | |||
84 | /* | ||
85 | * 2430-only clockdomains | ||
86 | */ | ||
87 | |||
88 | static struct clockdomain mpu_2430_clkdm = { | ||
89 | .name = "mpu_clkdm", | ||
90 | .pwrdm = { .name = "mpu_pwrdm" }, | ||
91 | .flags = CLKDM_CAN_HWSUP_SWSUP, | ||
92 | .wkdep_srcs = mpu_2430_wkdeps, | ||
93 | .clktrctrl_mask = OMAP24XX_AUTOSTATE_MPU_MASK, | ||
94 | }; | ||
95 | |||
96 | /* Another case of bit name collisions between several registers: EN_MDM */ | ||
97 | static struct clockdomain mdm_clkdm = { | ||
98 | .name = "mdm_clkdm", | ||
99 | .pwrdm = { .name = "mdm_pwrdm" }, | ||
100 | .flags = CLKDM_CAN_HWSUP_SWSUP, | ||
101 | .dep_bit = OMAP2430_PM_WKDEP_MPU_EN_MDM_SHIFT, | ||
102 | .wkdep_srcs = mdm_2430_wkdeps, | ||
103 | .clktrctrl_mask = OMAP2430_AUTOSTATE_MDM_MASK, | ||
104 | }; | ||
105 | |||
106 | static struct clockdomain dsp_2430_clkdm = { | ||
107 | .name = "dsp_clkdm", | ||
108 | .pwrdm = { .name = "dsp_pwrdm" }, | ||
109 | .flags = CLKDM_CAN_HWSUP_SWSUP, | ||
110 | .dep_bit = OMAP24XX_PM_WKDEP_MPU_EN_DSP_SHIFT, | ||
111 | .wkdep_srcs = dsp_24xx_wkdeps, | ||
112 | .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSP_MASK, | ||
113 | }; | ||
114 | |||
115 | static struct clockdomain gfx_2430_clkdm = { | ||
116 | .name = "gfx_clkdm", | ||
117 | .pwrdm = { .name = "gfx_pwrdm" }, | ||
118 | .flags = CLKDM_CAN_HWSUP_SWSUP, | ||
119 | .wkdep_srcs = gfx_24xx_wkdeps, | ||
120 | .clktrctrl_mask = OMAP24XX_AUTOSTATE_GFX_MASK, | ||
121 | }; | ||
122 | |||
123 | /* | ||
124 | * XXX add usecounting for clkdm dependencies, otherwise the presence | ||
125 | * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm | ||
126 | * could cause trouble | ||
127 | */ | ||
128 | static struct clockdomain core_l3_2430_clkdm = { | ||
129 | .name = "core_l3_clkdm", | ||
130 | .pwrdm = { .name = "core_pwrdm" }, | ||
131 | .flags = CLKDM_CAN_HWSUP, | ||
132 | .dep_bit = OMAP24XX_EN_CORE_SHIFT, | ||
133 | .wkdep_srcs = core_2430_wkdeps, | ||
134 | .clktrctrl_mask = OMAP24XX_AUTOSTATE_L3_MASK, | ||
135 | }; | ||
136 | |||
137 | /* | ||
138 | * XXX add usecounting for clkdm dependencies, otherwise the presence | ||
139 | * of a single dep bit for core_l3_24xx_clkdm and core_l4_24xx_clkdm | ||
140 | * could cause trouble | ||
141 | */ | ||
142 | static struct clockdomain core_l4_2430_clkdm = { | ||
143 | .name = "core_l4_clkdm", | ||
144 | .pwrdm = { .name = "core_pwrdm" }, | ||
145 | .flags = CLKDM_CAN_HWSUP, | ||
146 | .dep_bit = OMAP24XX_EN_CORE_SHIFT, | ||
147 | .wkdep_srcs = core_2430_wkdeps, | ||
148 | .clktrctrl_mask = OMAP24XX_AUTOSTATE_L4_MASK, | ||
149 | }; | ||
150 | |||
151 | static struct clockdomain dss_2430_clkdm = { | ||
152 | .name = "dss_clkdm", | ||
153 | .pwrdm = { .name = "core_pwrdm" }, | ||
154 | .flags = CLKDM_CAN_HWSUP, | ||
155 | .clktrctrl_mask = OMAP24XX_AUTOSTATE_DSS_MASK, | ||
156 | }; | ||
157 | |||
158 | static struct clockdomain *clockdomains_omap243x[] __initdata = { | ||
159 | &wkup_common_clkdm, | ||
160 | &cm_common_clkdm, | ||
161 | &prm_common_clkdm, | ||
162 | &mpu_2430_clkdm, | ||
163 | &mdm_clkdm, | ||
164 | &dsp_2430_clkdm, | ||
165 | &gfx_2430_clkdm, | ||
166 | &core_l3_2430_clkdm, | ||
167 | &core_l4_2430_clkdm, | ||
168 | &dss_2430_clkdm, | ||
169 | NULL, | ||
170 | }; | ||
171 | |||
172 | void __init omap243x_clockdomains_init(void) | ||
173 | { | ||
174 | if (!cpu_is_omap243x()) | ||
175 | return; | ||
176 | |||
177 | clkdm_register_platform_funcs(&omap2_clkdm_operations); | ||
178 | clkdm_register_clkdms(clockdomains_omap243x); | ||
179 | clkdm_complete_init(); | ||
180 | } | ||
181 | |||