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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
801954d3 | 2 | /* |
a5ffef6a | 3 | * OMAP2/3 clockdomain common data |
801954d3 | 4 | * |
a5ffef6a | 5 | * Copyright (C) 2008-2011 Texas Instruments, Inc. |
98fa3d8a | 6 | * Copyright (C) 2008-2010 Nokia Corporation |
801954d3 | 7 | * |
dc0b3a70 | 8 | * Paul Walmsley, Jouni Högander |
55ed9694 PW |
9 | * |
10 | * This file contains clockdomains and clockdomain wakeup/sleep | |
11 | * dependencies for the OMAP2/3 chips. Some notes: | |
12 | * | |
13 | * A useful validation rule for struct clockdomain: Any clockdomain | |
14 | * referenced by a wkdep_srcs or sleepdep_srcs array must have a | |
15 | * dep_bit assigned. So wkdep_srcs/sleepdep_srcs are really just | |
16 | * software-controllable dependencies. Non-software-controllable | |
17 | * dependencies do exist, but they are not encoded below (yet). | |
18 | * | |
19 | * 24xx does not support programmable sleep dependencies (SLEEPDEP) | |
20 | * | |
21 | * The overly-specific dep_bit names are due to a bit name collision | |
22 | * with CM_FCLKEN_{DSP,IVA2}. The DSP/IVA2 PM_WKDEP and CM_SLEEPDEP shift | |
23 | * value are the same for all powerdomains: 2 | |
24 | * | |
25 | * XXX should dep_bit be a mask, so we can test to see if it is 0 as a | |
26 | * sanity check? | |
27 | * XXX encode hardware fixed wakeup dependencies -- esp. for 3430 CORE | |
801954d3 PW |
28 | */ |
29 | ||
1a422724 AP |
30 | /* |
31 | * To-Do List | |
32 | * -> Port the Sleep/Wakeup dependencies for the domains | |
33 | * from the Power domain framework | |
34 | */ | |
35 | ||
dc0b3a70 PW |
36 | #include <linux/kernel.h> |
37 | #include <linux/io.h> | |
801954d3 | 38 | |
1540f214 | 39 | #include "clockdomain.h" |
59fb659b PW |
40 | #include "prm2xxx_3xxx.h" |
41 | #include "cm2xxx_3xxx.h" | |
74bea6b9 RN |
42 | #include "cm-regbits-24xx.h" |
43 | #include "cm-regbits-34xx.h" | |
44 | #include "cm-regbits-44xx.h" | |
45 | #include "prm-regbits-24xx.h" | |
46 | #include "prm-regbits-34xx.h" | |
801954d3 | 47 | |
55ed9694 PW |
48 | /* |
49 | * Clockdomain dependencies for wkdeps/sleepdeps | |
50 | * | |
51 | * XXX Hardware dependencies (e.g., dependencies that cannot be | |
52 | * changed in software) are not included here yet, but should be. | |
53 | */ | |
54 | ||
55ed9694 PW |
55 | /* Wakeup dependency source arrays */ |
56 | ||
a5ffef6a | 57 | /* 2xxx-specific possible dependencies */ |
3d309cde | 58 | |
a5ffef6a PW |
59 | /* 2xxx PM_WKDEP_GFX: CORE, MPU, WKUP */ |
60 | struct clkdm_dep gfx_24xx_wkdeps[] = { | |
61 | { .clkdm_name = "core_l3_clkdm" }, | |
62 | { .clkdm_name = "core_l4_clkdm" }, | |
63 | { .clkdm_name = "mpu_clkdm" }, | |
64 | { .clkdm_name = "wkup_clkdm" }, | |
a2601700 PW |
65 | { NULL }, |
66 | }; | |
67 | ||
a5ffef6a PW |
68 | /* 2xxx PM_WKDEP_DSP: CORE, MPU, WKUP */ |
69 | struct clkdm_dep dsp_24xx_wkdeps[] = { | |
70 | { .clkdm_name = "core_l3_clkdm" }, | |
71 | { .clkdm_name = "core_l4_clkdm" }, | |
72 | { .clkdm_name = "mpu_clkdm" }, | |
73 | { .clkdm_name = "wkup_clkdm" }, | |
55ed9694 PW |
74 | { NULL }, |
75 | }; | |
76 | ||
55ed9694 | 77 | |
801954d3 PW |
78 | /* |
79 | * OMAP2/3-common clockdomains | |
d37f1a13 PW |
80 | * |
81 | * Even though the 2420 has a single PRCM module from the | |
82 | * interconnect's perspective, internally it does appear to have | |
83 | * separate PRM and CM clockdomains. The usual test case is | |
84 | * sys_clkout/sys_clkout2. | |
801954d3 PW |
85 | */ |
86 | ||
87 | /* This is an implicit clockdomain - it is never defined as such in TRM */ | |
a5ffef6a | 88 | struct clockdomain wkup_common_clkdm = { |
801954d3 | 89 | .name = "wkup_clkdm", |
5b74c676 | 90 | .pwrdm = { .name = "wkup_pwrdm" }, |
55ed9694 | 91 | .dep_bit = OMAP_EN_WKUP_SHIFT, |
006c7f18 | 92 | .flags = CLKDM_ACTIVE_WITH_MPU, |
801954d3 | 93 | }; |