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Tony Lindgrenb824efa2006-04-02 17:46:20 +01001/*
2 * linux/arch/arm/mach-omap2/prcm.c
3 *
4 * OMAP 24xx Power Reset and Clock Management (PRCM) functions
5 *
6 * Copyright (C) 2005 Nokia Corporation
7 *
8 * Written by Tony Lindgren <tony.lindgren@nokia.com>
9 *
Rajendra Nayakc171a252008-09-26 17:48:31 +053010 * Copyright (C) 2007 Texas Instruments, Inc.
11 * Rajendra Nayak <rnayak@ti.com>
12 *
Tony Lindgrenb824efa2006-04-02 17:46:20 +010013 * Some pieces of code Copyright (C) 2005 Texas Instruments, Inc.
Abhijit Pagare37903002010-01-26 20:12:51 -070014 * Upgraded with OMAP4 support by Abhijit Pagare <abhijitpagare@ti.com>
Tony Lindgrenb824efa2006-04-02 17:46:20 +010015 *
16 * This program is free software; you can redistribute it and/or modify
17 * it under the terms of the GNU General Public License version 2 as
18 * published by the Free Software Foundation.
19 */
Tony Lindgrenb824efa2006-04-02 17:46:20 +010020#include <linux/module.h>
21#include <linux/init.h>
22#include <linux/clk.h>
Tony Lindgrena58caad2008-07-03 12:24:44 +030023#include <linux/io.h>
Paul Walmsley72350b22009-07-24 19:44:03 -060024#include <linux/delay.h>
Tony Lindgrenb824efa2006-04-02 17:46:20 +010025
Tony Lindgrence491cf2009-10-20 09:40:47 -070026#include <plat/common.h>
27#include <plat/prcm.h>
Rajendra Nayakc171a252008-09-26 17:48:31 +053028#include <plat/irqs.h>
29#include <plat/control.h>
Paul Walmsley44595982008-03-18 10:04:51 +020030
Tony Lindgrena58caad2008-07-03 12:24:44 +030031#include "clock.h"
Paul Walmsleyfeec1272010-01-26 20:13:11 -070032#include "clock2xxx.h"
Rajendra Nayakc171a252008-09-26 17:48:31 +053033#include "cm.h"
Paul Walmsley44595982008-03-18 10:04:51 +020034#include "prm.h"
35#include "prm-regbits-24xx.h"
Tony Lindgrenb824efa2006-04-02 17:46:20 +010036
Tony Lindgrena58caad2008-07-03 12:24:44 +030037static void __iomem *prm_base;
38static void __iomem *cm_base;
Rajendra Nayak9ef89152009-12-08 18:24:49 -070039static void __iomem *cm2_base;
Tony Lindgrena58caad2008-07-03 12:24:44 +030040
Paul Walmsley72350b22009-07-24 19:44:03 -060041#define MAX_MODULE_ENABLE_WAIT 100000
42
Rajendra Nayakc171a252008-09-26 17:48:31 +053043struct omap3_prcm_regs {
44 u32 control_padconf_sys_nirq;
Jouni Hogander133464d2009-02-05 13:34:01 +020045 u32 iva2_cm_clksel1;
Rajendra Nayakc171a252008-09-26 17:48:31 +053046 u32 iva2_cm_clksel2;
47 u32 cm_sysconfig;
48 u32 sgx_cm_clksel;
Rajendra Nayakc171a252008-09-26 17:48:31 +053049 u32 dss_cm_clksel;
50 u32 cam_cm_clksel;
51 u32 per_cm_clksel;
52 u32 emu_cm_clksel;
53 u32 emu_cm_clkstctrl;
54 u32 pll_cm_autoidle2;
55 u32 pll_cm_clksel4;
56 u32 pll_cm_clksel5;
Rajendra Nayakc171a252008-09-26 17:48:31 +053057 u32 pll_cm_clken2;
58 u32 cm_polctrl;
59 u32 iva2_cm_fclken;
60 u32 iva2_cm_clken_pll;
61 u32 core_cm_fclken1;
62 u32 core_cm_fclken3;
63 u32 sgx_cm_fclken;
64 u32 wkup_cm_fclken;
65 u32 dss_cm_fclken;
66 u32 cam_cm_fclken;
67 u32 per_cm_fclken;
68 u32 usbhost_cm_fclken;
69 u32 core_cm_iclken1;
70 u32 core_cm_iclken2;
71 u32 core_cm_iclken3;
72 u32 sgx_cm_iclken;
73 u32 wkup_cm_iclken;
74 u32 dss_cm_iclken;
75 u32 cam_cm_iclken;
76 u32 per_cm_iclken;
77 u32 usbhost_cm_iclken;
78 u32 iva2_cm_autiidle2;
79 u32 mpu_cm_autoidle2;
Rajendra Nayakc171a252008-09-26 17:48:31 +053080 u32 iva2_cm_clkstctrl;
81 u32 mpu_cm_clkstctrl;
82 u32 core_cm_clkstctrl;
83 u32 sgx_cm_clkstctrl;
84 u32 dss_cm_clkstctrl;
85 u32 cam_cm_clkstctrl;
86 u32 per_cm_clkstctrl;
87 u32 neon_cm_clkstctrl;
88 u32 usbhost_cm_clkstctrl;
89 u32 core_cm_autoidle1;
90 u32 core_cm_autoidle2;
91 u32 core_cm_autoidle3;
92 u32 wkup_cm_autoidle;
93 u32 dss_cm_autoidle;
94 u32 cam_cm_autoidle;
95 u32 per_cm_autoidle;
96 u32 usbhost_cm_autoidle;
97 u32 sgx_cm_sleepdep;
98 u32 dss_cm_sleepdep;
99 u32 cam_cm_sleepdep;
100 u32 per_cm_sleepdep;
101 u32 usbhost_cm_sleepdep;
102 u32 cm_clkout_ctrl;
103 u32 prm_clkout_ctrl;
104 u32 sgx_pm_wkdep;
105 u32 dss_pm_wkdep;
106 u32 cam_pm_wkdep;
107 u32 per_pm_wkdep;
108 u32 neon_pm_wkdep;
109 u32 usbhost_pm_wkdep;
110 u32 core_pm_mpugrpsel1;
111 u32 iva2_pm_ivagrpsel1;
112 u32 core_pm_mpugrpsel3;
113 u32 core_pm_ivagrpsel3;
114 u32 wkup_pm_mpugrpsel;
115 u32 wkup_pm_ivagrpsel;
116 u32 per_pm_mpugrpsel;
117 u32 per_pm_ivagrpsel;
118 u32 wkup_pm_wken;
119};
120
121struct omap3_prcm_regs prcm_context;
122
Tony Lindgrenb824efa2006-04-02 17:46:20 +0100123u32 omap_prcm_get_reset_sources(void)
124{
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300125 /* XXX This presumably needs modification for 34XX */
Abhijit Pagare37903002010-01-26 20:12:51 -0700126 if (cpu_is_omap24xx() | cpu_is_omap34xx())
127 return prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST) & 0x7f;
128 if (cpu_is_omap44xx())
129 return prm_read_mod_reg(WKUP_MOD, OMAP4_RM_RSTST) & 0x7f;
Kevin Hilman0cc93142010-02-24 12:05:56 -0700130
131 return 0;
Tony Lindgrenb824efa2006-04-02 17:46:20 +0100132}
133EXPORT_SYMBOL(omap_prcm_get_reset_sources);
134
135/* Resets clock rates and reboots the system. Only called from system.h */
136void omap_prcm_arch_reset(char mode)
137{
Kevin Hilman0cc93142010-02-24 12:05:56 -0700138 s16 prcm_offs = 0;
Paul Walmsley44595982008-03-18 10:04:51 +0200139
Paul Walmsleyfeec1272010-01-26 20:13:11 -0700140 if (cpu_is_omap24xx()) {
141 omap2xxx_clk_prepare_for_reboot();
142
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300143 prcm_offs = WKUP_MOD;
Paul Walmsleyfeec1272010-01-26 20:13:11 -0700144 } else if (cpu_is_omap34xx()) {
Juha Yrjola692ec4a2009-03-09 21:21:01 +0000145 u32 l;
146
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300147 prcm_offs = OMAP3430_GR_MOD;
Juha Yrjola692ec4a2009-03-09 21:21:01 +0000148 l = ('B' << 24) | ('M' << 16) | mode;
149 /* Reserve the first word in scratchpad for communicating
150 * with the boot ROM. A pointer to a data structure
151 * describing the boot process can be stored there,
152 * cf. OMAP34xx TRM, Initialization / Software Booting
153 * Configuration. */
154 omap_writel(l, OMAP343X_SCRATCHPAD + 4);
Abhijit Pagare37903002010-01-26 20:12:51 -0700155 } else if (cpu_is_omap44xx())
156 prcm_offs = OMAP4430_PRM_DEVICE_MOD;
157 else
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300158 WARN_ON(1);
159
Abhijit Pagare37903002010-01-26 20:12:51 -0700160 if (cpu_is_omap24xx() | cpu_is_omap34xx())
161 prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs,
162 OMAP2_RM_RSTCTRL);
163 if (cpu_is_omap44xx())
164 prm_set_mod_reg_bits(OMAP_RST_DPLL3, prcm_offs,
165 OMAP4_RM_RSTCTRL);
Tony Lindgrenb824efa2006-04-02 17:46:20 +0100166}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300167
168static inline u32 __omap_prcm_read(void __iomem *base, s16 module, u16 reg)
169{
170 BUG_ON(!base);
171 return __raw_readl(base + module + reg);
172}
173
174static inline void __omap_prcm_write(u32 value, void __iomem *base,
175 s16 module, u16 reg)
176{
177 BUG_ON(!base);
178 __raw_writel(value, base + module + reg);
179}
180
181/* Read a register in a PRM module */
182u32 prm_read_mod_reg(s16 module, u16 idx)
183{
184 return __omap_prcm_read(prm_base, module, idx);
185}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300186
187/* Write into a register in a PRM module */
188void prm_write_mod_reg(u32 val, s16 module, u16 idx)
189{
190 __omap_prcm_write(val, prm_base, module, idx);
191}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300192
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300193/* Read-modify-write a register in a PRM module. Caller must lock */
194u32 prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
195{
196 u32 v;
197
198 v = prm_read_mod_reg(module, idx);
199 v &= ~mask;
200 v |= bits;
201 prm_write_mod_reg(v, module, idx);
202
203 return v;
204}
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300205
Paul Walmsley55ed9692010-01-26 20:12:59 -0700206/* Read a PRM register, AND it, and shift the result down to bit 0 */
207u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
208{
209 u32 v;
210
211 v = prm_read_mod_reg(domain, idx);
212 v &= mask;
213 v >>= __ffs(mask);
214
215 return v;
216}
217
Tony Lindgrena58caad2008-07-03 12:24:44 +0300218/* Read a register in a CM module */
219u32 cm_read_mod_reg(s16 module, u16 idx)
220{
221 return __omap_prcm_read(cm_base, module, idx);
222}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300223
224/* Write into a register in a CM module */
225void cm_write_mod_reg(u32 val, s16 module, u16 idx)
226{
227 __omap_prcm_write(val, cm_base, module, idx);
228}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300229
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300230/* Read-modify-write a register in a CM module. Caller must lock */
231u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
232{
233 u32 v;
234
235 v = cm_read_mod_reg(module, idx);
236 v &= ~mask;
237 v |= bits;
238 cm_write_mod_reg(v, module, idx);
239
240 return v;
241}
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300242
Paul Walmsley72350b22009-07-24 19:44:03 -0600243/**
244 * omap2_cm_wait_idlest - wait for IDLEST bit to indicate module readiness
245 * @reg: physical address of module IDLEST register
246 * @mask: value to mask against to determine if the module is active
Ranjith Lohithakshan419cc972010-02-24 12:05:54 -0700247 * @idlest: idle state indicator (0 or 1) for the clock
Paul Walmsley72350b22009-07-24 19:44:03 -0600248 * @name: name of the clock (for printk)
249 *
250 * Returns 1 if the module indicated readiness in time, or 0 if it
251 * failed to enable in roughly MAX_MODULE_ENABLE_WAIT microseconds.
252 */
Ranjith Lohithakshan419cc972010-02-24 12:05:54 -0700253int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, u8 idlest,
254 const char *name)
Paul Walmsley72350b22009-07-24 19:44:03 -0600255{
256 int i = 0;
257 int ena = 0;
258
Ranjith Lohithakshan419cc972010-02-24 12:05:54 -0700259 if (idlest)
Paul Walmsley72350b22009-07-24 19:44:03 -0600260 ena = 0;
261 else
Ranjith Lohithakshan419cc972010-02-24 12:05:54 -0700262 ena = mask;
Paul Walmsley72350b22009-07-24 19:44:03 -0600263
264 /* Wait for lock */
Paul Walmsley6f8b7ff2009-12-08 16:33:16 -0700265 omap_test_timeout(((__raw_readl(reg) & mask) == ena),
266 MAX_MODULE_ENABLE_WAIT, i);
Paul Walmsley72350b22009-07-24 19:44:03 -0600267
268 if (i < MAX_MODULE_ENABLE_WAIT)
269 pr_debug("cm: Module associated with clock %s ready after %d "
270 "loops\n", name, i);
271 else
272 pr_err("cm: Module associated with clock %s didn't enable in "
273 "%d tries\n", name, MAX_MODULE_ENABLE_WAIT);
274
275 return (i < MAX_MODULE_ENABLE_WAIT) ? 1 : 0;
276};
277
Tony Lindgrena58caad2008-07-03 12:24:44 +0300278void __init omap2_set_globals_prcm(struct omap_globals *omap2_globals)
279{
280 prm_base = omap2_globals->prm;
281 cm_base = omap2_globals->cm;
Rajendra Nayak9ef89152009-12-08 18:24:49 -0700282 cm2_base = omap2_globals->cm2;
Tony Lindgrena58caad2008-07-03 12:24:44 +0300283}
Rajendra Nayakc171a252008-09-26 17:48:31 +0530284
285#ifdef CONFIG_ARCH_OMAP3
286void omap3_prcm_save_context(void)
287{
288 prcm_context.control_padconf_sys_nirq =
289 omap_ctrl_readl(OMAP343X_CONTROL_PADCONF_SYSNIRQ);
Jouni Hogander133464d2009-02-05 13:34:01 +0200290 prcm_context.iva2_cm_clksel1 =
291 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530292 prcm_context.iva2_cm_clksel2 =
293 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL2);
294 prcm_context.cm_sysconfig = __raw_readl(OMAP3430_CM_SYSCONFIG);
295 prcm_context.sgx_cm_clksel =
296 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSEL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530297 prcm_context.dss_cm_clksel =
298 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSEL);
299 prcm_context.cam_cm_clksel =
300 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSEL);
301 prcm_context.per_cm_clksel =
302 cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSEL);
303 prcm_context.emu_cm_clksel =
304 cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1);
305 prcm_context.emu_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700306 cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530307 prcm_context.pll_cm_autoidle2 =
308 cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2);
309 prcm_context.pll_cm_clksel4 =
310 cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL4);
311 prcm_context.pll_cm_clksel5 =
312 cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL5);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530313 prcm_context.pll_cm_clken2 =
314 cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKEN2);
315 prcm_context.cm_polctrl = __raw_readl(OMAP3430_CM_POLCTRL);
316 prcm_context.iva2_cm_fclken =
317 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_FCLKEN);
318 prcm_context.iva2_cm_clken_pll = cm_read_mod_reg(OMAP3430_IVA2_MOD,
319 OMAP3430_CM_CLKEN_PLL);
320 prcm_context.core_cm_fclken1 =
321 cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
322 prcm_context.core_cm_fclken3 =
323 cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3);
324 prcm_context.sgx_cm_fclken =
325 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_FCLKEN);
326 prcm_context.wkup_cm_fclken =
327 cm_read_mod_reg(WKUP_MOD, CM_FCLKEN);
328 prcm_context.dss_cm_fclken =
329 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_FCLKEN);
330 prcm_context.cam_cm_fclken =
331 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_FCLKEN);
332 prcm_context.per_cm_fclken =
333 cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN);
334 prcm_context.usbhost_cm_fclken =
335 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
336 prcm_context.core_cm_iclken1 =
337 cm_read_mod_reg(CORE_MOD, CM_ICLKEN1);
338 prcm_context.core_cm_iclken2 =
339 cm_read_mod_reg(CORE_MOD, CM_ICLKEN2);
340 prcm_context.core_cm_iclken3 =
341 cm_read_mod_reg(CORE_MOD, CM_ICLKEN3);
342 prcm_context.sgx_cm_iclken =
343 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_ICLKEN);
344 prcm_context.wkup_cm_iclken =
345 cm_read_mod_reg(WKUP_MOD, CM_ICLKEN);
346 prcm_context.dss_cm_iclken =
347 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_ICLKEN);
348 prcm_context.cam_cm_iclken =
349 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_ICLKEN);
350 prcm_context.per_cm_iclken =
351 cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN);
352 prcm_context.usbhost_cm_iclken =
353 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
354 prcm_context.iva2_cm_autiidle2 =
355 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_AUTOIDLE2);
356 prcm_context.mpu_cm_autoidle2 =
357 cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530358 prcm_context.iva2_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700359 cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530360 prcm_context.mpu_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700361 cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530362 prcm_context.core_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700363 cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530364 prcm_context.sgx_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700365 cm_read_mod_reg(OMAP3430ES2_SGX_MOD,
366 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530367 prcm_context.dss_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700368 cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530369 prcm_context.cam_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700370 cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530371 prcm_context.per_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700372 cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530373 prcm_context.neon_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700374 cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530375 prcm_context.usbhost_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700376 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
377 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530378 prcm_context.core_cm_autoidle1 =
379 cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1);
380 prcm_context.core_cm_autoidle2 =
381 cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE2);
382 prcm_context.core_cm_autoidle3 =
383 cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE3);
384 prcm_context.wkup_cm_autoidle =
385 cm_read_mod_reg(WKUP_MOD, CM_AUTOIDLE);
386 prcm_context.dss_cm_autoidle =
387 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_AUTOIDLE);
388 prcm_context.cam_cm_autoidle =
389 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_AUTOIDLE);
390 prcm_context.per_cm_autoidle =
391 cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE);
392 prcm_context.usbhost_cm_autoidle =
393 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
394 prcm_context.sgx_cm_sleepdep =
395 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, OMAP3430_CM_SLEEPDEP);
396 prcm_context.dss_cm_sleepdep =
397 cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP3430_CM_SLEEPDEP);
398 prcm_context.cam_cm_sleepdep =
399 cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP3430_CM_SLEEPDEP);
400 prcm_context.per_cm_sleepdep =
401 cm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_CM_SLEEPDEP);
402 prcm_context.usbhost_cm_sleepdep =
403 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP);
404 prcm_context.cm_clkout_ctrl = cm_read_mod_reg(OMAP3430_CCR_MOD,
405 OMAP3_CM_CLKOUT_CTRL_OFFSET);
406 prcm_context.prm_clkout_ctrl = prm_read_mod_reg(OMAP3430_CCR_MOD,
407 OMAP3_PRM_CLKOUT_CTRL_OFFSET);
408 prcm_context.sgx_pm_wkdep =
409 prm_read_mod_reg(OMAP3430ES2_SGX_MOD, PM_WKDEP);
410 prcm_context.dss_pm_wkdep =
411 prm_read_mod_reg(OMAP3430_DSS_MOD, PM_WKDEP);
412 prcm_context.cam_pm_wkdep =
413 prm_read_mod_reg(OMAP3430_CAM_MOD, PM_WKDEP);
414 prcm_context.per_pm_wkdep =
415 prm_read_mod_reg(OMAP3430_PER_MOD, PM_WKDEP);
416 prcm_context.neon_pm_wkdep =
417 prm_read_mod_reg(OMAP3430_NEON_MOD, PM_WKDEP);
418 prcm_context.usbhost_pm_wkdep =
419 prm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, PM_WKDEP);
420 prcm_context.core_pm_mpugrpsel1 =
421 prm_read_mod_reg(CORE_MOD, OMAP3430_PM_MPUGRPSEL1);
422 prcm_context.iva2_pm_ivagrpsel1 =
423 prm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_PM_IVAGRPSEL1);
424 prcm_context.core_pm_mpugrpsel3 =
425 prm_read_mod_reg(CORE_MOD, OMAP3430ES2_PM_MPUGRPSEL3);
426 prcm_context.core_pm_ivagrpsel3 =
427 prm_read_mod_reg(CORE_MOD, OMAP3430ES2_PM_IVAGRPSEL3);
428 prcm_context.wkup_pm_mpugrpsel =
429 prm_read_mod_reg(WKUP_MOD, OMAP3430_PM_MPUGRPSEL);
430 prcm_context.wkup_pm_ivagrpsel =
431 prm_read_mod_reg(WKUP_MOD, OMAP3430_PM_IVAGRPSEL);
432 prcm_context.per_pm_mpugrpsel =
433 prm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_PM_MPUGRPSEL);
434 prcm_context.per_pm_ivagrpsel =
435 prm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL);
436 prcm_context.wkup_pm_wken = prm_read_mod_reg(WKUP_MOD, PM_WKEN);
437 return;
438}
439
440void omap3_prcm_restore_context(void)
441{
442 omap_ctrl_writel(prcm_context.control_padconf_sys_nirq,
443 OMAP343X_CONTROL_PADCONF_SYSNIRQ);
Jouni Hogander133464d2009-02-05 13:34:01 +0200444 cm_write_mod_reg(prcm_context.iva2_cm_clksel1, OMAP3430_IVA2_MOD,
445 CM_CLKSEL1);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530446 cm_write_mod_reg(prcm_context.iva2_cm_clksel2, OMAP3430_IVA2_MOD,
447 CM_CLKSEL2);
448 __raw_writel(prcm_context.cm_sysconfig, OMAP3430_CM_SYSCONFIG);
449 cm_write_mod_reg(prcm_context.sgx_cm_clksel, OMAP3430ES2_SGX_MOD,
450 CM_CLKSEL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530451 cm_write_mod_reg(prcm_context.dss_cm_clksel, OMAP3430_DSS_MOD,
452 CM_CLKSEL);
453 cm_write_mod_reg(prcm_context.cam_cm_clksel, OMAP3430_CAM_MOD,
454 CM_CLKSEL);
455 cm_write_mod_reg(prcm_context.per_cm_clksel, OMAP3430_PER_MOD,
456 CM_CLKSEL);
457 cm_write_mod_reg(prcm_context.emu_cm_clksel, OMAP3430_EMU_MOD,
458 CM_CLKSEL1);
459 cm_write_mod_reg(prcm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700460 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530461 cm_write_mod_reg(prcm_context.pll_cm_autoidle2, PLL_MOD,
462 CM_AUTOIDLE2);
463 cm_write_mod_reg(prcm_context.pll_cm_clksel4, PLL_MOD,
464 OMAP3430ES2_CM_CLKSEL4);
465 cm_write_mod_reg(prcm_context.pll_cm_clksel5, PLL_MOD,
466 OMAP3430ES2_CM_CLKSEL5);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530467 cm_write_mod_reg(prcm_context.pll_cm_clken2, PLL_MOD,
468 OMAP3430ES2_CM_CLKEN2);
469 __raw_writel(prcm_context.cm_polctrl, OMAP3430_CM_POLCTRL);
470 cm_write_mod_reg(prcm_context.iva2_cm_fclken, OMAP3430_IVA2_MOD,
471 CM_FCLKEN);
472 cm_write_mod_reg(prcm_context.iva2_cm_clken_pll, OMAP3430_IVA2_MOD,
473 OMAP3430_CM_CLKEN_PLL);
474 cm_write_mod_reg(prcm_context.core_cm_fclken1, CORE_MOD, CM_FCLKEN1);
475 cm_write_mod_reg(prcm_context.core_cm_fclken3, CORE_MOD,
476 OMAP3430ES2_CM_FCLKEN3);
477 cm_write_mod_reg(prcm_context.sgx_cm_fclken, OMAP3430ES2_SGX_MOD,
478 CM_FCLKEN);
479 cm_write_mod_reg(prcm_context.wkup_cm_fclken, WKUP_MOD, CM_FCLKEN);
480 cm_write_mod_reg(prcm_context.dss_cm_fclken, OMAP3430_DSS_MOD,
481 CM_FCLKEN);
482 cm_write_mod_reg(prcm_context.cam_cm_fclken, OMAP3430_CAM_MOD,
483 CM_FCLKEN);
484 cm_write_mod_reg(prcm_context.per_cm_fclken, OMAP3430_PER_MOD,
485 CM_FCLKEN);
486 cm_write_mod_reg(prcm_context.usbhost_cm_fclken,
487 OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
488 cm_write_mod_reg(prcm_context.core_cm_iclken1, CORE_MOD, CM_ICLKEN1);
489 cm_write_mod_reg(prcm_context.core_cm_iclken2, CORE_MOD, CM_ICLKEN2);
490 cm_write_mod_reg(prcm_context.core_cm_iclken3, CORE_MOD, CM_ICLKEN3);
491 cm_write_mod_reg(prcm_context.sgx_cm_iclken, OMAP3430ES2_SGX_MOD,
492 CM_ICLKEN);
493 cm_write_mod_reg(prcm_context.wkup_cm_iclken, WKUP_MOD, CM_ICLKEN);
494 cm_write_mod_reg(prcm_context.dss_cm_iclken, OMAP3430_DSS_MOD,
495 CM_ICLKEN);
496 cm_write_mod_reg(prcm_context.cam_cm_iclken, OMAP3430_CAM_MOD,
497 CM_ICLKEN);
498 cm_write_mod_reg(prcm_context.per_cm_iclken, OMAP3430_PER_MOD,
499 CM_ICLKEN);
500 cm_write_mod_reg(prcm_context.usbhost_cm_iclken,
501 OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
502 cm_write_mod_reg(prcm_context.iva2_cm_autiidle2, OMAP3430_IVA2_MOD,
503 CM_AUTOIDLE2);
504 cm_write_mod_reg(prcm_context.mpu_cm_autoidle2, MPU_MOD, CM_AUTOIDLE2);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530505 cm_write_mod_reg(prcm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700506 OMAP2_CM_CLKSTCTRL);
507 cm_write_mod_reg(prcm_context.mpu_cm_clkstctrl, MPU_MOD,
508 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530509 cm_write_mod_reg(prcm_context.core_cm_clkstctrl, CORE_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700510 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530511 cm_write_mod_reg(prcm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700512 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530513 cm_write_mod_reg(prcm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700514 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530515 cm_write_mod_reg(prcm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700516 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530517 cm_write_mod_reg(prcm_context.per_cm_clkstctrl, OMAP3430_PER_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700518 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530519 cm_write_mod_reg(prcm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700520 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530521 cm_write_mod_reg(prcm_context.usbhost_cm_clkstctrl,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700522 OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530523 cm_write_mod_reg(prcm_context.core_cm_autoidle1, CORE_MOD,
524 CM_AUTOIDLE1);
525 cm_write_mod_reg(prcm_context.core_cm_autoidle2, CORE_MOD,
526 CM_AUTOIDLE2);
527 cm_write_mod_reg(prcm_context.core_cm_autoidle3, CORE_MOD,
528 CM_AUTOIDLE3);
529 cm_write_mod_reg(prcm_context.wkup_cm_autoidle, WKUP_MOD, CM_AUTOIDLE);
530 cm_write_mod_reg(prcm_context.dss_cm_autoidle, OMAP3430_DSS_MOD,
531 CM_AUTOIDLE);
532 cm_write_mod_reg(prcm_context.cam_cm_autoidle, OMAP3430_CAM_MOD,
533 CM_AUTOIDLE);
534 cm_write_mod_reg(prcm_context.per_cm_autoidle, OMAP3430_PER_MOD,
535 CM_AUTOIDLE);
536 cm_write_mod_reg(prcm_context.usbhost_cm_autoidle,
537 OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
538 cm_write_mod_reg(prcm_context.sgx_cm_sleepdep, OMAP3430ES2_SGX_MOD,
539 OMAP3430_CM_SLEEPDEP);
540 cm_write_mod_reg(prcm_context.dss_cm_sleepdep, OMAP3430_DSS_MOD,
541 OMAP3430_CM_SLEEPDEP);
542 cm_write_mod_reg(prcm_context.cam_cm_sleepdep, OMAP3430_CAM_MOD,
543 OMAP3430_CM_SLEEPDEP);
544 cm_write_mod_reg(prcm_context.per_cm_sleepdep, OMAP3430_PER_MOD,
545 OMAP3430_CM_SLEEPDEP);
546 cm_write_mod_reg(prcm_context.usbhost_cm_sleepdep,
547 OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP);
548 cm_write_mod_reg(prcm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD,
549 OMAP3_CM_CLKOUT_CTRL_OFFSET);
550 prm_write_mod_reg(prcm_context.prm_clkout_ctrl, OMAP3430_CCR_MOD,
551 OMAP3_PRM_CLKOUT_CTRL_OFFSET);
552 prm_write_mod_reg(prcm_context.sgx_pm_wkdep, OMAP3430ES2_SGX_MOD,
553 PM_WKDEP);
554 prm_write_mod_reg(prcm_context.dss_pm_wkdep, OMAP3430_DSS_MOD,
555 PM_WKDEP);
556 prm_write_mod_reg(prcm_context.cam_pm_wkdep, OMAP3430_CAM_MOD,
557 PM_WKDEP);
558 prm_write_mod_reg(prcm_context.per_pm_wkdep, OMAP3430_PER_MOD,
559 PM_WKDEP);
560 prm_write_mod_reg(prcm_context.neon_pm_wkdep, OMAP3430_NEON_MOD,
561 PM_WKDEP);
562 prm_write_mod_reg(prcm_context.usbhost_pm_wkdep,
563 OMAP3430ES2_USBHOST_MOD, PM_WKDEP);
564 prm_write_mod_reg(prcm_context.core_pm_mpugrpsel1, CORE_MOD,
565 OMAP3430_PM_MPUGRPSEL1);
566 prm_write_mod_reg(prcm_context.iva2_pm_ivagrpsel1, OMAP3430_IVA2_MOD,
567 OMAP3430_PM_IVAGRPSEL1);
568 prm_write_mod_reg(prcm_context.core_pm_mpugrpsel3, CORE_MOD,
569 OMAP3430ES2_PM_MPUGRPSEL3);
570 prm_write_mod_reg(prcm_context.core_pm_ivagrpsel3, CORE_MOD,
571 OMAP3430ES2_PM_IVAGRPSEL3);
572 prm_write_mod_reg(prcm_context.wkup_pm_mpugrpsel, WKUP_MOD,
573 OMAP3430_PM_MPUGRPSEL);
574 prm_write_mod_reg(prcm_context.wkup_pm_ivagrpsel, WKUP_MOD,
575 OMAP3430_PM_IVAGRPSEL);
576 prm_write_mod_reg(prcm_context.per_pm_mpugrpsel, OMAP3430_PER_MOD,
577 OMAP3430_PM_MPUGRPSEL);
578 prm_write_mod_reg(prcm_context.per_pm_ivagrpsel, OMAP3430_PER_MOD,
579 OMAP3430_PM_IVAGRPSEL);
580 prm_write_mod_reg(prcm_context.wkup_pm_wken, WKUP_MOD, PM_WKEN);
581 return;
582}
583#endif