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gerrit-public.fairphone.software / kernel / msm / 0eddea68bcdbdc780284eb195d0ef64bd2792942 / . / arch / arm / mach-omap2 / powerdomain-common.c
blob: 171fccd208c730e7f003f06de576c6f2a166694c [file] [log] [blame]
Rajendra Nayak9b7fc902010-12-21 20:01:19 -0700[diff] [blame]1/*
2 * linux/arch/arm/mach-omap2/powerdomain-common.c
3 * Contains common powerdomain framework functions
4 *
5 * Copyright (C) 2010 Texas Instruments, Inc.
6 * Copyright (C) 2010 Nokia Corporation
7 *
8 * Derived from mach-omap2/powerdomain.c written by Paul Walmsley
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#include <linux/errno.h>
16#include <linux/kernel.h>
17#include "pm.h"
18#include "cm.h"
19#include "cm-regbits-34xx.h"
20#include "cm-regbits-44xx.h"
21#include "prm-regbits-34xx.h"
22#include "prm-regbits-44xx.h"
Rajendra Nayak9b7fc902010-12-21 20:01:19 -0700[diff] [blame]23
24/*
25 * OMAP3 and OMAP4 specific register bit initialisations
26 * Notice that the names here are not according to each power
27 * domain but the bit mapping used applies to all of them
28 */
29/* OMAP3 and OMAP4 Memory Onstate Masks (common across all power domains) */
30#define OMAP_MEM0_ONSTATE_MASK OMAP3430_SHAREDL1CACHEFLATONSTATE_MASK
31#define OMAP_MEM1_ONSTATE_MASK OMAP3430_L1FLATMEMONSTATE_MASK
32#define OMAP_MEM2_ONSTATE_MASK OMAP3430_SHAREDL2CACHEFLATONSTATE_MASK
33#define OMAP_MEM3_ONSTATE_MASK OMAP3430_L2FLATMEMONSTATE_MASK
34#define OMAP_MEM4_ONSTATE_MASK OMAP4430_OCP_NRET_BANK_ONSTATE_MASK
35
36/* OMAP3 and OMAP4 Memory Retstate Masks (common across all power domains) */
37#define OMAP_MEM0_RETSTATE_MASK OMAP3430_SHAREDL1CACHEFLATRETSTATE_MASK
38#define OMAP_MEM1_RETSTATE_MASK OMAP3430_L1FLATMEMRETSTATE_MASK
39#define OMAP_MEM2_RETSTATE_MASK OMAP3430_SHAREDL2CACHEFLATRETSTATE_MASK
40#define OMAP_MEM3_RETSTATE_MASK OMAP3430_L2FLATMEMRETSTATE_MASK
41#define OMAP_MEM4_RETSTATE_MASK OMAP4430_OCP_NRET_BANK_RETSTATE_MASK
42
43/* OMAP3 and OMAP4 Memory Status bits */
44#define OMAP_MEM0_STATEST_MASK OMAP3430_SHAREDL1CACHEFLATSTATEST_MASK
45#define OMAP_MEM1_STATEST_MASK OMAP3430_L1FLATMEMSTATEST_MASK
46#define OMAP_MEM2_STATEST_MASK OMAP3430_SHAREDL2CACHEFLATSTATEST_MASK
47#define OMAP_MEM3_STATEST_MASK OMAP3430_L2FLATMEMSTATEST_MASK
48#define OMAP_MEM4_STATEST_MASK OMAP4430_OCP_NRET_BANK_STATEST_MASK
49
50/* Common Internal functions used across OMAP rev's*/
51u32 omap2_pwrdm_get_mem_bank_onstate_mask(u8 bank)
52{
53 switch (bank) {
54 case 0:
55 return OMAP_MEM0_ONSTATE_MASK;
56 case 1:
57 return OMAP_MEM1_ONSTATE_MASK;
58 case 2:
59 return OMAP_MEM2_ONSTATE_MASK;
60 case 3:
61 return OMAP_MEM3_ONSTATE_MASK;
62 case 4:
63 return OMAP_MEM4_ONSTATE_MASK;
64 default:
65 WARN_ON(1); /* should never happen */
66 return -EEXIST;
67 }
68 return 0;
69}
70
71u32 omap2_pwrdm_get_mem_bank_retst_mask(u8 bank)
72{
73 switch (bank) {
74 case 0:
75 return OMAP_MEM0_RETSTATE_MASK;
76 case 1:
77 return OMAP_MEM1_RETSTATE_MASK;
78 case 2:
79 return OMAP_MEM2_RETSTATE_MASK;
80 case 3:
81 return OMAP_MEM3_RETSTATE_MASK;
82 case 4:
83 return OMAP_MEM4_RETSTATE_MASK;
84 default:
85 WARN_ON(1); /* should never happen */
86 return -EEXIST;
87 }
88 return 0;
89}
90
91u32 omap2_pwrdm_get_mem_bank_stst_mask(u8 bank)
92{
93 switch (bank) {
94 case 0:
95 return OMAP_MEM0_STATEST_MASK;
96 case 1:
97 return OMAP_MEM1_STATEST_MASK;
98 case 2:
99 return OMAP_MEM2_STATEST_MASK;
100 case 3:
101 return OMAP_MEM3_STATEST_MASK;
102 case 4:
103 return OMAP_MEM4_STATEST_MASK;
104 default:
105 WARN_ON(1); /* should never happen */
106 return -EEXIST;
107 }
108 return 0;
109}
110