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1 /*
2 * OMAP2xxx/3xxx-common Power/Reset Management (PRM) register definitions
3 *
4 * Copyright (C) 2007-2009, 2011-2012 Texas Instruments, Inc.
5 * Copyright (C) 2008-2010 Nokia Corporation
6 * Paul Walmsley
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 * The PRM hardware modules on the OMAP2/3 are quite similar to each
13 * other. The PRM on OMAP4 has a new register layout, and is handled
14 * in a separate file.
15 */
16 #ifndef __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H
17 #define __ARCH_ARM_MACH_OMAP2_PRM2XXX_3XXX_H
18
19 #include "prcm-common.h"
20 #include "prm.h"
21
22 /*
23 * Module specific PRM register offsets from PRM_BASE + domain offset
24 *
25 * Use prm_{read,write}_mod_reg() with these registers.
26 *
27 * With a few exceptions, these are the register names beginning with
28 * {PM,RM}_* on both OMAP2/3 SoC families.. (The exceptions are the
29 * IRQSTATUS and IRQENABLE bits.)
30 */
31
32 /* Register offsets appearing on both OMAP2 and OMAP3 */
33
34 #define OMAP2_RM_RSTCTRL 0x0050
35 #define OMAP2_RM_RSTTIME 0x0054
36 #define OMAP2_RM_RSTST 0x0058
37 #define OMAP2_PM_PWSTCTRL 0x00e0
38 #define OMAP2_PM_PWSTST 0x00e4
39
40 #define PM_WKEN 0x00a0
41 #define PM_WKEN1 PM_WKEN
42 #define PM_WKST 0x00b0
43 #define PM_WKST1 PM_WKST
44 #define PM_WKDEP 0x00c8
45 #define PM_EVGENCTRL 0x00d4
46 #define PM_EVGENONTIM 0x00d8
47 #define PM_EVGENOFFTIM 0x00dc
48
49
50 #ifndef __ASSEMBLER__
51
52 #include <linux/io.h>
53 #include "powerdomain.h"
54
55 /* Power/reset management domain register get/set */
56 static inline u32 omap2_prm_read_mod_reg(s16 module, u16 idx)
57 {
58 return readl_relaxed(prm_base.va + module + idx);
59 }
60
61 static inline void omap2_prm_write_mod_reg(u32 val, s16 module, u16 idx)
62 {
63 writel_relaxed(val, prm_base.va + module + idx);
64 }
65
66 /* Read-modify-write a register in a PRM module. Caller must lock */
67 static inline u32 omap2_prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module,
68 s16 idx)
69 {
70 u32 v;
71
72 v = omap2_prm_read_mod_reg(module, idx);
73 v &= ~mask;
74 v |= bits;
75 omap2_prm_write_mod_reg(v, module, idx);
76
77 return v;
78 }
79
80 /* Read a PRM register, AND it, and shift the result down to bit 0 */
81 static inline u32 omap2_prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
82 {
83 u32 v;
84
85 v = omap2_prm_read_mod_reg(domain, idx);
86 v &= mask;
87 v >>= __ffs(mask);
88
89 return v;
90 }
91
92 static inline u32 omap2_prm_set_mod_reg_bits(u32 bits, s16 module, s16 idx)
93 {
94 return omap2_prm_rmw_mod_reg_bits(bits, bits, module, idx);
95 }
96
97 static inline u32 omap2_prm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
98 {
99 return omap2_prm_rmw_mod_reg_bits(bits, 0x0, module, idx);
100 }
101
102 /* These omap2_ PRM functions apply to both OMAP2 and 3 */
103 int omap2_prm_is_hardreset_asserted(u8 shift, u8 part, s16 prm_mod, u16 offset);
104 int omap2_prm_assert_hardreset(u8 shift, u8 part, s16 prm_mod,
105 u16 offset);
106 int omap2_prm_deassert_hardreset(u8 rst_shift, u8 st_shift, u8 part,
107 s16 prm_mod, u16 reset_offset,
108 u16 st_offset);
109
110 extern int omap2_pwrdm_set_next_pwrst(struct powerdomain *pwrdm, u8 pwrst);
111 extern int omap2_pwrdm_read_next_pwrst(struct powerdomain *pwrdm);
112 extern int omap2_pwrdm_read_pwrst(struct powerdomain *pwrdm);
113 extern int omap2_pwrdm_set_mem_onst(struct powerdomain *pwrdm, u8 bank,
114 u8 pwrst);
115 extern int omap2_pwrdm_set_mem_retst(struct powerdomain *pwrdm, u8 bank,
116 u8 pwrst);
117 extern int omap2_pwrdm_read_mem_pwrst(struct powerdomain *pwrdm, u8 bank);
118 extern int omap2_pwrdm_read_mem_retst(struct powerdomain *pwrdm, u8 bank);
119 extern int omap2_pwrdm_set_logic_retst(struct powerdomain *pwrdm, u8 pwrst);
120 extern int omap2_pwrdm_wait_transition(struct powerdomain *pwrdm);
121
122 extern int omap2_clkdm_add_wkdep(struct clockdomain *clkdm1,
123 struct clockdomain *clkdm2);
124 extern int omap2_clkdm_del_wkdep(struct clockdomain *clkdm1,
125 struct clockdomain *clkdm2);
126 extern int omap2_clkdm_read_wkdep(struct clockdomain *clkdm1,
127 struct clockdomain *clkdm2);
128 extern int omap2_clkdm_clear_all_wkdeps(struct clockdomain *clkdm);
129
130 #endif /* __ASSEMBLER */
131
132 /*
133 * Bits common to specific registers
134 *
135 * The 3430 register and bit names are generally used,
136 * since they tend to make more sense
137 */
138
139 /* PM_EVGENONTIM_MPU */
140 /* Named PM_EVEGENONTIM_MPU on the 24XX */
141 #define OMAP_ONTIMEVAL_SHIFT 0
142 #define OMAP_ONTIMEVAL_MASK (0xffffffff << 0)
143
144 /* PM_EVGENOFFTIM_MPU */
145 /* Named PM_EVEGENOFFTIM_MPU on the 24XX */
146 #define OMAP_OFFTIMEVAL_SHIFT 0
147 #define OMAP_OFFTIMEVAL_MASK (0xffffffff << 0)
148
149 /* PRM_CLKSETUP and PRCM_VOLTSETUP */
150 /* Named PRCM_CLKSSETUP on the 24XX */
151 #define OMAP_SETUP_TIME_SHIFT 0
152 #define OMAP_SETUP_TIME_MASK (0xffff << 0)
153
154 /* PRM_CLKSRC_CTRL */
155 /* Named PRCM_CLKSRC_CTRL on the 24XX */
156 #define OMAP_SYSCLKDIV_SHIFT 6
157 #define OMAP_SYSCLKDIV_MASK (0x3 << 6)
158 #define OMAP_SYSCLKDIV_WIDTH 2
159 #define OMAP_AUTOEXTCLKMODE_SHIFT 3
160 #define OMAP_AUTOEXTCLKMODE_MASK (0x3 << 3)
161 #define OMAP_SYSCLKSEL_SHIFT 0
162 #define OMAP_SYSCLKSEL_MASK (0x3 << 0)
163
164 /* PM_EVGENCTRL_MPU */
165 #define OMAP_OFFLOADMODE_SHIFT 3
166 #define OMAP_OFFLOADMODE_MASK (0x3 << 3)
167 #define OMAP_ONLOADMODE_SHIFT 1
168 #define OMAP_ONLOADMODE_MASK (0x3 << 1)
169 #define OMAP_ENABLE_MASK (1 << 0)
170
171 /* PRM_RSTTIME */
172 /* Named RM_RSTTIME_WKUP on the 24xx */
173 #define OMAP_RSTTIME2_SHIFT 8
174 #define OMAP_RSTTIME2_MASK (0x1f << 8)
175 #define OMAP_RSTTIME1_SHIFT 0
176 #define OMAP_RSTTIME1_MASK (0xff << 0)
177
178 /* PRM_RSTCTRL */
179 /* Named RM_RSTCTRL_WKUP on the 24xx */
180 /* 2420 calls RST_DPLL3 'RST_DPLL' */
181 #define OMAP_RST_DPLL3_MASK (1 << 2)
182 #define OMAP_RST_GS_MASK (1 << 1)
183
184
185 /*
186 * Bits common to module-shared registers
187 *
188 * Not all registers of a particular type support all of these bits -
189 * check TRM if you are unsure
190 */
191
192 /*
193 * 24XX: RM_RSTST_MPU and RM_RSTST_DSP - on 24XX, 'COREDOMAINWKUP_RST' is
194 * called 'COREWKUP_RST'
195 *
196 * 3430: RM_RSTST_IVA2, RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSS,
197 * RM_RSTST_CAM, RM_RSTST_PER, RM_RSTST_NEON
198 */
199 #define OMAP_COREDOMAINWKUP_RST_MASK (1 << 3)
200
201 /*
202 * 24XX: RM_RSTST_MPU, RM_RSTST_GFX, RM_RSTST_DSP
203 *
204 * 2430: RM_RSTST_MDM
205 *
206 * 3430: RM_RSTST_CORE, RM_RSTST_EMU
207 */
208 #define OMAP_DOMAINWKUP_RST_MASK (1 << 2)
209
210 /*
211 * 24XX: RM_RSTST_MPU, RM_RSTST_WKUP, RM_RSTST_DSP
212 * On 24XX, 'GLOBALWARM_RST' is called 'GLOBALWMPU_RST'.
213 *
214 * 2430: RM_RSTST_MDM
215 *
216 * 3430: RM_RSTST_CORE, RM_RSTST_EMU
217 */
218 #define OMAP_GLOBALWARM_RST_SHIFT 1
219 #define OMAP_GLOBALWARM_RST_MASK (1 << 1)
220 #define OMAP_GLOBALCOLD_RST_SHIFT 0
221 #define OMAP_GLOBALCOLD_RST_MASK (1 << 0)
222
223 /*
224 * 24XX: PM_WKDEP_GFX, PM_WKDEP_MPU, PM_WKDEP_CORE, PM_WKDEP_DSP
225 * 2420 TRM sometimes uses "EN_WAKEUP" instead of "EN_WKUP"
226 *
227 * 2430: PM_WKDEP_MDM
228 *
229 * 3430: PM_WKDEP_IVA2, PM_WKDEP_GFX, PM_WKDEP_DSS, PM_WKDEP_CAM,
230 * PM_WKDEP_PER
231 */
232 #define OMAP_EN_WKUP_SHIFT 4
233 #define OMAP_EN_WKUP_MASK (1 << 4)
234
235 /*
236 * 24XX: PM_PWSTCTRL_MPU, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
237 * PM_PWSTCTRL_DSP
238 *
239 * 2430: PM_PWSTCTRL_MDM
240 *
241 * 3430: PM_PWSTCTRL_IVA2, PM_PWSTCTRL_CORE, PM_PWSTCTRL_GFX,
242 * PM_PWSTCTRL_DSS, PM_PWSTCTRL_CAM, PM_PWSTCTRL_PER,
243 * PM_PWSTCTRL_NEON
244 */
245 #define OMAP_LOGICRETSTATE_MASK (1 << 2)
246
247
248 #endif