1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * Common powerdomain framework functions |
4 | * |
5 | * Copyright (C) 2010-2011 Texas Instruments, Inc. |
6 | * Copyright (C) 2010 Nokia Corporation |
7 | * |
8 | * Derived from mach-omap2/powerdomain.c written by Paul Walmsley |
9 | */ |
10 | |
11 | #include <linux/errno.h> |
12 | #include <linux/kernel.h> |
13 | #include <linux/bug.h> |
14 | #include "pm.h" |
15 | #include "cm.h" |
16 | #include "cm-regbits-34xx.h" |
17 | #include "prm-regbits-34xx.h" |
18 | #include "prm-regbits-44xx.h" |
19 | |
20 | /* |
21 | * OMAP3 and OMAP4 specific register bit initialisations |
22 | * Notice that the names here are not according to each power |
23 | * domain but the bit mapping used applies to all of them |
24 | */ |
25 | /* OMAP3 and OMAP4 Memory Onstate Masks (common across all power domains) */ |
26 | #define OMAP_MEM0_ONSTATE_MASK OMAP3430_SHAREDL1CACHEFLATONSTATE_MASK |
27 | #define OMAP_MEM1_ONSTATE_MASK OMAP3430_L1FLATMEMONSTATE_MASK |
28 | #define OMAP_MEM2_ONSTATE_MASK OMAP3430_SHAREDL2CACHEFLATONSTATE_MASK |
29 | #define OMAP_MEM3_ONSTATE_MASK OMAP3430_L2FLATMEMONSTATE_MASK |
30 | #define OMAP_MEM4_ONSTATE_MASK OMAP4430_OCP_NRET_BANK_ONSTATE_MASK |
31 | |
32 | /* OMAP3 and OMAP4 Memory Retstate Masks (common across all power domains) */ |
33 | #define OMAP_MEM0_RETSTATE_MASK OMAP3430_SHAREDL1CACHEFLATRETSTATE_MASK |
34 | #define OMAP_MEM1_RETSTATE_MASK OMAP3430_L1FLATMEMRETSTATE_MASK |
35 | #define OMAP_MEM2_RETSTATE_MASK OMAP3430_SHAREDL2CACHEFLATRETSTATE_MASK |
36 | #define OMAP_MEM3_RETSTATE_MASK OMAP3430_L2FLATMEMRETSTATE_MASK |
37 | #define OMAP_MEM4_RETSTATE_MASK OMAP4430_OCP_NRET_BANK_RETSTATE_MASK |
38 | |
39 | /* OMAP3 and OMAP4 Memory Status bits */ |
40 | #define OMAP_MEM0_STATEST_MASK OMAP3430_SHAREDL1CACHEFLATSTATEST_MASK |
41 | #define OMAP_MEM1_STATEST_MASK OMAP3430_L1FLATMEMSTATEST_MASK |
42 | #define OMAP_MEM2_STATEST_MASK OMAP3430_SHAREDL2CACHEFLATSTATEST_MASK |
43 | #define OMAP_MEM3_STATEST_MASK OMAP3430_L2FLATMEMSTATEST_MASK |
44 | #define OMAP_MEM4_STATEST_MASK OMAP4430_OCP_NRET_BANK_STATEST_MASK |
45 | |
46 | /* Common Internal functions used across OMAP rev's*/ |
47 | u32 omap2_pwrdm_get_mem_bank_onstate_mask(u8 bank) |
48 | { |
49 | switch (bank) { |
50 | case 0: |
51 | return OMAP_MEM0_ONSTATE_MASK; |
52 | case 1: |
53 | return OMAP_MEM1_ONSTATE_MASK; |
54 | case 2: |
55 | return OMAP_MEM2_ONSTATE_MASK; |
56 | case 3: |
57 | return OMAP_MEM3_ONSTATE_MASK; |
58 | case 4: |
59 | return OMAP_MEM4_ONSTATE_MASK; |
60 | default: |
61 | WARN_ON(1); /* should never happen */ |
62 | return -EEXIST; |
63 | } |
64 | return 0; |
65 | } |
66 | |
67 | u32 omap2_pwrdm_get_mem_bank_retst_mask(u8 bank) |
68 | { |
69 | switch (bank) { |
70 | case 0: |
71 | return OMAP_MEM0_RETSTATE_MASK; |
72 | case 1: |
73 | return OMAP_MEM1_RETSTATE_MASK; |
74 | case 2: |
75 | return OMAP_MEM2_RETSTATE_MASK; |
76 | case 3: |
77 | return OMAP_MEM3_RETSTATE_MASK; |
78 | case 4: |
79 | return OMAP_MEM4_RETSTATE_MASK; |
80 | default: |
81 | WARN_ON(1); /* should never happen */ |
82 | return -EEXIST; |
83 | } |
84 | return 0; |
85 | } |
86 | |
87 | u32 omap2_pwrdm_get_mem_bank_stst_mask(u8 bank) |
88 | { |
89 | switch (bank) { |
90 | case 0: |
91 | return OMAP_MEM0_STATEST_MASK; |
92 | case 1: |
93 | return OMAP_MEM1_STATEST_MASK; |
94 | case 2: |
95 | return OMAP_MEM2_STATEST_MASK; |
96 | case 3: |
97 | return OMAP_MEM3_STATEST_MASK; |
98 | case 4: |
99 | return OMAP_MEM4_STATEST_MASK; |
100 | default: |
101 | WARN_ON(1); /* should never happen */ |
102 | return -EEXIST; |
103 | } |
104 | return 0; |
105 | } |
106 | |
107 | |