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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>
Paul Walmsley44595982008-03-18 10:04:51 +020029
Tony Lindgrena58caad2008-07-03 12:24:44 +030030#include "clock.h"
Paul Walmsleyfeec1272010-01-26 20:13:11 -070031#include "clock2xxx.h"
Rajendra Nayakc171a252008-09-26 17:48:31 +053032#include "cm.h"
Paul Walmsley44595982008-03-18 10:04:51 +020033#include "prm.h"
34#include "prm-regbits-24xx.h"
Rajeev Kulkarniff4d3e12010-09-21 10:34:09 -060035#include "prm-regbits-44xx.h"
Paul Walmsley4814ced2010-10-08 11:40:20 -060036#include "control.h"
Tony Lindgrenb824efa2006-04-02 17:46:20 +010037
Tony Lindgrena58caad2008-07-03 12:24:44 +030038static void __iomem *prm_base;
39static void __iomem *cm_base;
Rajendra Nayak9ef89152009-12-08 18:24:49 -070040static void __iomem *cm2_base;
Tony Lindgrena58caad2008-07-03 12:24:44 +030041
Paul Walmsley72350b22009-07-24 19:44:03 -060042#define MAX_MODULE_ENABLE_WAIT 100000
43
Rajendra Nayakc171a252008-09-26 17:48:31 +053044struct omap3_prcm_regs {
45 u32 control_padconf_sys_nirq;
Jouni Hogander133464d2009-02-05 13:34:01 +020046 u32 iva2_cm_clksel1;
Rajendra Nayakc171a252008-09-26 17:48:31 +053047 u32 iva2_cm_clksel2;
48 u32 cm_sysconfig;
49 u32 sgx_cm_clksel;
Rajendra Nayakc171a252008-09-26 17:48:31 +053050 u32 dss_cm_clksel;
51 u32 cam_cm_clksel;
52 u32 per_cm_clksel;
53 u32 emu_cm_clksel;
54 u32 emu_cm_clkstctrl;
55 u32 pll_cm_autoidle2;
56 u32 pll_cm_clksel4;
57 u32 pll_cm_clksel5;
Rajendra Nayakc171a252008-09-26 17:48:31 +053058 u32 pll_cm_clken2;
59 u32 cm_polctrl;
60 u32 iva2_cm_fclken;
61 u32 iva2_cm_clken_pll;
62 u32 core_cm_fclken1;
63 u32 core_cm_fclken3;
64 u32 sgx_cm_fclken;
65 u32 wkup_cm_fclken;
66 u32 dss_cm_fclken;
67 u32 cam_cm_fclken;
68 u32 per_cm_fclken;
69 u32 usbhost_cm_fclken;
70 u32 core_cm_iclken1;
71 u32 core_cm_iclken2;
72 u32 core_cm_iclken3;
73 u32 sgx_cm_iclken;
74 u32 wkup_cm_iclken;
75 u32 dss_cm_iclken;
76 u32 cam_cm_iclken;
77 u32 per_cm_iclken;
78 u32 usbhost_cm_iclken;
79 u32 iva2_cm_autiidle2;
80 u32 mpu_cm_autoidle2;
Rajendra Nayakc171a252008-09-26 17:48:31 +053081 u32 iva2_cm_clkstctrl;
82 u32 mpu_cm_clkstctrl;
83 u32 core_cm_clkstctrl;
84 u32 sgx_cm_clkstctrl;
85 u32 dss_cm_clkstctrl;
86 u32 cam_cm_clkstctrl;
87 u32 per_cm_clkstctrl;
88 u32 neon_cm_clkstctrl;
89 u32 usbhost_cm_clkstctrl;
90 u32 core_cm_autoidle1;
91 u32 core_cm_autoidle2;
92 u32 core_cm_autoidle3;
93 u32 wkup_cm_autoidle;
94 u32 dss_cm_autoidle;
95 u32 cam_cm_autoidle;
96 u32 per_cm_autoidle;
97 u32 usbhost_cm_autoidle;
98 u32 sgx_cm_sleepdep;
99 u32 dss_cm_sleepdep;
100 u32 cam_cm_sleepdep;
101 u32 per_cm_sleepdep;
102 u32 usbhost_cm_sleepdep;
103 u32 cm_clkout_ctrl;
104 u32 prm_clkout_ctrl;
105 u32 sgx_pm_wkdep;
106 u32 dss_pm_wkdep;
107 u32 cam_pm_wkdep;
108 u32 per_pm_wkdep;
109 u32 neon_pm_wkdep;
110 u32 usbhost_pm_wkdep;
111 u32 core_pm_mpugrpsel1;
112 u32 iva2_pm_ivagrpsel1;
113 u32 core_pm_mpugrpsel3;
114 u32 core_pm_ivagrpsel3;
115 u32 wkup_pm_mpugrpsel;
116 u32 wkup_pm_ivagrpsel;
117 u32 per_pm_mpugrpsel;
118 u32 per_pm_ivagrpsel;
119 u32 wkup_pm_wken;
120};
121
Manjunath Kondaiah G38815732010-10-08 09:56:37 -0700122static struct omap3_prcm_regs prcm_context;
Rajendra Nayakc171a252008-09-26 17:48:31 +0530123
Tony Lindgrenb824efa2006-04-02 17:46:20 +0100124u32 omap_prcm_get_reset_sources(void)
125{
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300126 /* XXX This presumably needs modification for 34XX */
Rajendra Nayak766d3052010-03-31 04:16:30 -0600127 if (cpu_is_omap24xx() || cpu_is_omap34xx())
Abhijit Pagare37903002010-01-26 20:12:51 -0700128 return prm_read_mod_reg(WKUP_MOD, OMAP2_RM_RSTST) & 0x7f;
129 if (cpu_is_omap44xx())
130 return prm_read_mod_reg(WKUP_MOD, OMAP4_RM_RSTST) & 0x7f;
Kevin Hilman0cc93142010-02-24 12:05:56 -0700131
132 return 0;
Tony Lindgrenb824efa2006-04-02 17:46:20 +0100133}
134EXPORT_SYMBOL(omap_prcm_get_reset_sources);
135
136/* Resets clock rates and reboots the system. Only called from system.h */
Aaro Koskinen29b9a212010-02-26 10:25:28 +0000137void omap_prcm_arch_reset(char mode, const char *cmd)
Tony Lindgrenb824efa2006-04-02 17:46:20 +0100138{
Kevin Hilman0cc93142010-02-24 12:05:56 -0700139 s16 prcm_offs = 0;
Paul Walmsley44595982008-03-18 10:04:51 +0200140
Paul Walmsleyfeec1272010-01-26 20:13:11 -0700141 if (cpu_is_omap24xx()) {
142 omap2xxx_clk_prepare_for_reboot();
143
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300144 prcm_offs = WKUP_MOD;
Paul Walmsleyfeec1272010-01-26 20:13:11 -0700145 } else if (cpu_is_omap34xx()) {
Juha Yrjola692ec4a2009-03-09 21:21:01 +0000146 u32 l;
147
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300148 prcm_offs = OMAP3430_GR_MOD;
Aaro Koskinen29b9a212010-02-26 10:25:28 +0000149 l = ('B' << 24) | ('M' << 16) | (cmd ? (u8)*cmd : 0);
Juha Yrjola692ec4a2009-03-09 21:21:01 +0000150 /* Reserve the first word in scratchpad for communicating
151 * with the boot ROM. A pointer to a data structure
152 * describing the boot process can be stored there,
153 * cf. OMAP34xx TRM, Initialization / Software Booting
154 * Configuration. */
155 omap_writel(l, OMAP343X_SCRATCHPAD + 4);
Abhijit Pagare37903002010-01-26 20:12:51 -0700156 } else if (cpu_is_omap44xx())
157 prcm_offs = OMAP4430_PRM_DEVICE_MOD;
158 else
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300159 WARN_ON(1);
160
Rajendra Nayak766d3052010-03-31 04:16:30 -0600161 if (cpu_is_omap24xx() || cpu_is_omap34xx())
Paul Walmsley2fd0f752010-05-18 18:40:23 -0600162 prm_set_mod_reg_bits(OMAP_RST_DPLL3_MASK, prcm_offs,
Abhijit Pagare37903002010-01-26 20:12:51 -0700163 OMAP2_RM_RSTCTRL);
164 if (cpu_is_omap44xx())
Rajeev Kulkarniff4d3e12010-09-21 10:34:09 -0600165 prm_set_mod_reg_bits(OMAP4430_RST_GLOBAL_WARM_SW_MASK,
166 prcm_offs, OMAP4_RM_RSTCTRL);
Tony Lindgrenb824efa2006-04-02 17:46:20 +0100167}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300168
169static inline u32 __omap_prcm_read(void __iomem *base, s16 module, u16 reg)
170{
171 BUG_ON(!base);
172 return __raw_readl(base + module + reg);
173}
174
175static inline void __omap_prcm_write(u32 value, void __iomem *base,
176 s16 module, u16 reg)
177{
178 BUG_ON(!base);
179 __raw_writel(value, base + module + reg);
180}
181
182/* Read a register in a PRM module */
183u32 prm_read_mod_reg(s16 module, u16 idx)
184{
185 return __omap_prcm_read(prm_base, module, idx);
186}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300187
188/* Write into a register in a PRM module */
189void prm_write_mod_reg(u32 val, s16 module, u16 idx)
190{
191 __omap_prcm_write(val, prm_base, module, idx);
192}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300193
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300194/* Read-modify-write a register in a PRM module. Caller must lock */
195u32 prm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
196{
197 u32 v;
198
199 v = prm_read_mod_reg(module, idx);
200 v &= ~mask;
201 v |= bits;
202 prm_write_mod_reg(v, module, idx);
203
204 return v;
205}
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300206
Paul Walmsley55ed9692010-01-26 20:12:59 -0700207/* Read a PRM register, AND it, and shift the result down to bit 0 */
208u32 prm_read_mod_bits_shift(s16 domain, s16 idx, u32 mask)
209{
210 u32 v;
211
212 v = prm_read_mod_reg(domain, idx);
213 v &= mask;
214 v >>= __ffs(mask);
215
216 return v;
217}
218
Benoit Cousson16b04012010-09-21 10:34:10 -0600219/* Read a PRM register, AND it, and shift the result down to bit 0 */
220u32 omap4_prm_read_bits_shift(void __iomem *reg, u32 mask)
221{
222 u32 v;
223
224 v = __raw_readl(reg);
225 v &= mask;
226 v >>= __ffs(mask);
227
228 return v;
229}
230
231/* Read-modify-write a register in a PRM module. Caller must lock */
232u32 omap4_prm_rmw_reg_bits(u32 mask, u32 bits, void __iomem *reg)
233{
234 u32 v;
235
236 v = __raw_readl(reg);
237 v &= ~mask;
238 v |= bits;
239 __raw_writel(v, reg);
240
241 return v;
242}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300243/* Read a register in a CM module */
244u32 cm_read_mod_reg(s16 module, u16 idx)
245{
246 return __omap_prcm_read(cm_base, module, idx);
247}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300248
249/* Write into a register in a CM module */
250void cm_write_mod_reg(u32 val, s16 module, u16 idx)
251{
252 __omap_prcm_write(val, cm_base, module, idx);
253}
Tony Lindgrena58caad2008-07-03 12:24:44 +0300254
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300255/* Read-modify-write a register in a CM module. Caller must lock */
256u32 cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
257{
258 u32 v;
259
260 v = cm_read_mod_reg(module, idx);
261 v &= ~mask;
262 v |= bits;
263 cm_write_mod_reg(v, module, idx);
264
265 return v;
266}
Tony Lindgrenff00fcc2008-07-03 12:24:44 +0300267
Paul Walmsley72350b22009-07-24 19:44:03 -0600268/**
269 * omap2_cm_wait_idlest - wait for IDLEST bit to indicate module readiness
270 * @reg: physical address of module IDLEST register
271 * @mask: value to mask against to determine if the module is active
Ranjith Lohithakshan419cc972010-02-24 12:05:54 -0700272 * @idlest: idle state indicator (0 or 1) for the clock
Paul Walmsley72350b22009-07-24 19:44:03 -0600273 * @name: name of the clock (for printk)
274 *
275 * Returns 1 if the module indicated readiness in time, or 0 if it
276 * failed to enable in roughly MAX_MODULE_ENABLE_WAIT microseconds.
277 */
Ranjith Lohithakshan419cc972010-02-24 12:05:54 -0700278int omap2_cm_wait_idlest(void __iomem *reg, u32 mask, u8 idlest,
279 const char *name)
Paul Walmsley72350b22009-07-24 19:44:03 -0600280{
281 int i = 0;
282 int ena = 0;
283
Ranjith Lohithakshan419cc972010-02-24 12:05:54 -0700284 if (idlest)
Paul Walmsley72350b22009-07-24 19:44:03 -0600285 ena = 0;
286 else
Ranjith Lohithakshan419cc972010-02-24 12:05:54 -0700287 ena = mask;
Paul Walmsley72350b22009-07-24 19:44:03 -0600288
289 /* Wait for lock */
Paul Walmsley6f8b7ff2009-12-08 16:33:16 -0700290 omap_test_timeout(((__raw_readl(reg) & mask) == ena),
291 MAX_MODULE_ENABLE_WAIT, i);
Paul Walmsley72350b22009-07-24 19:44:03 -0600292
293 if (i < MAX_MODULE_ENABLE_WAIT)
294 pr_debug("cm: Module associated with clock %s ready after %d "
295 "loops\n", name, i);
296 else
297 pr_err("cm: Module associated with clock %s didn't enable in "
298 "%d tries\n", name, MAX_MODULE_ENABLE_WAIT);
299
300 return (i < MAX_MODULE_ENABLE_WAIT) ? 1 : 0;
301};
302
Tony Lindgrena58caad2008-07-03 12:24:44 +0300303void __init omap2_set_globals_prcm(struct omap_globals *omap2_globals)
304{
Santosh Shilimkarb7ebb102010-02-15 18:03:37 +0530305 /* Static mapping, never released */
306 if (omap2_globals->prm) {
307 prm_base = ioremap(omap2_globals->prm, SZ_8K);
308 WARN_ON(!prm_base);
309 }
310 if (omap2_globals->cm) {
311 cm_base = ioremap(omap2_globals->cm, SZ_8K);
312 WARN_ON(!cm_base);
313 }
314 if (omap2_globals->cm2) {
315 cm2_base = ioremap(omap2_globals->cm2, SZ_8K);
316 WARN_ON(!cm2_base);
317 }
Tony Lindgrena58caad2008-07-03 12:24:44 +0300318}
Rajendra Nayakc171a252008-09-26 17:48:31 +0530319
320#ifdef CONFIG_ARCH_OMAP3
321void omap3_prcm_save_context(void)
322{
323 prcm_context.control_padconf_sys_nirq =
324 omap_ctrl_readl(OMAP343X_CONTROL_PADCONF_SYSNIRQ);
Jouni Hogander133464d2009-02-05 13:34:01 +0200325 prcm_context.iva2_cm_clksel1 =
326 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530327 prcm_context.iva2_cm_clksel2 =
328 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL2);
329 prcm_context.cm_sysconfig = __raw_readl(OMAP3430_CM_SYSCONFIG);
330 prcm_context.sgx_cm_clksel =
331 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSEL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530332 prcm_context.dss_cm_clksel =
333 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSEL);
334 prcm_context.cam_cm_clksel =
335 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSEL);
336 prcm_context.per_cm_clksel =
337 cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSEL);
338 prcm_context.emu_cm_clksel =
339 cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1);
340 prcm_context.emu_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700341 cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530342 prcm_context.pll_cm_autoidle2 =
343 cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2);
344 prcm_context.pll_cm_clksel4 =
345 cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL4);
346 prcm_context.pll_cm_clksel5 =
347 cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL5);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530348 prcm_context.pll_cm_clken2 =
349 cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKEN2);
350 prcm_context.cm_polctrl = __raw_readl(OMAP3430_CM_POLCTRL);
351 prcm_context.iva2_cm_fclken =
352 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_FCLKEN);
353 prcm_context.iva2_cm_clken_pll = cm_read_mod_reg(OMAP3430_IVA2_MOD,
354 OMAP3430_CM_CLKEN_PLL);
355 prcm_context.core_cm_fclken1 =
356 cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
357 prcm_context.core_cm_fclken3 =
358 cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3);
359 prcm_context.sgx_cm_fclken =
360 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_FCLKEN);
361 prcm_context.wkup_cm_fclken =
362 cm_read_mod_reg(WKUP_MOD, CM_FCLKEN);
363 prcm_context.dss_cm_fclken =
364 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_FCLKEN);
365 prcm_context.cam_cm_fclken =
366 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_FCLKEN);
367 prcm_context.per_cm_fclken =
368 cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN);
369 prcm_context.usbhost_cm_fclken =
370 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
371 prcm_context.core_cm_iclken1 =
372 cm_read_mod_reg(CORE_MOD, CM_ICLKEN1);
373 prcm_context.core_cm_iclken2 =
374 cm_read_mod_reg(CORE_MOD, CM_ICLKEN2);
375 prcm_context.core_cm_iclken3 =
376 cm_read_mod_reg(CORE_MOD, CM_ICLKEN3);
377 prcm_context.sgx_cm_iclken =
378 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_ICLKEN);
379 prcm_context.wkup_cm_iclken =
380 cm_read_mod_reg(WKUP_MOD, CM_ICLKEN);
381 prcm_context.dss_cm_iclken =
382 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_ICLKEN);
383 prcm_context.cam_cm_iclken =
384 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_ICLKEN);
385 prcm_context.per_cm_iclken =
386 cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN);
387 prcm_context.usbhost_cm_iclken =
388 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
389 prcm_context.iva2_cm_autiidle2 =
390 cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_AUTOIDLE2);
391 prcm_context.mpu_cm_autoidle2 =
392 cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530393 prcm_context.iva2_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700394 cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530395 prcm_context.mpu_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700396 cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530397 prcm_context.core_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700398 cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530399 prcm_context.sgx_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700400 cm_read_mod_reg(OMAP3430ES2_SGX_MOD,
401 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530402 prcm_context.dss_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700403 cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530404 prcm_context.cam_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700405 cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530406 prcm_context.per_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700407 cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530408 prcm_context.neon_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700409 cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530410 prcm_context.usbhost_cm_clkstctrl =
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700411 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
412 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530413 prcm_context.core_cm_autoidle1 =
414 cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1);
415 prcm_context.core_cm_autoidle2 =
416 cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE2);
417 prcm_context.core_cm_autoidle3 =
418 cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE3);
419 prcm_context.wkup_cm_autoidle =
420 cm_read_mod_reg(WKUP_MOD, CM_AUTOIDLE);
421 prcm_context.dss_cm_autoidle =
422 cm_read_mod_reg(OMAP3430_DSS_MOD, CM_AUTOIDLE);
423 prcm_context.cam_cm_autoidle =
424 cm_read_mod_reg(OMAP3430_CAM_MOD, CM_AUTOIDLE);
425 prcm_context.per_cm_autoidle =
426 cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE);
427 prcm_context.usbhost_cm_autoidle =
428 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
429 prcm_context.sgx_cm_sleepdep =
430 cm_read_mod_reg(OMAP3430ES2_SGX_MOD, OMAP3430_CM_SLEEPDEP);
431 prcm_context.dss_cm_sleepdep =
432 cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP3430_CM_SLEEPDEP);
433 prcm_context.cam_cm_sleepdep =
434 cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP3430_CM_SLEEPDEP);
435 prcm_context.per_cm_sleepdep =
436 cm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_CM_SLEEPDEP);
437 prcm_context.usbhost_cm_sleepdep =
438 cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP);
439 prcm_context.cm_clkout_ctrl = cm_read_mod_reg(OMAP3430_CCR_MOD,
440 OMAP3_CM_CLKOUT_CTRL_OFFSET);
441 prcm_context.prm_clkout_ctrl = prm_read_mod_reg(OMAP3430_CCR_MOD,
442 OMAP3_PRM_CLKOUT_CTRL_OFFSET);
443 prcm_context.sgx_pm_wkdep =
444 prm_read_mod_reg(OMAP3430ES2_SGX_MOD, PM_WKDEP);
445 prcm_context.dss_pm_wkdep =
446 prm_read_mod_reg(OMAP3430_DSS_MOD, PM_WKDEP);
447 prcm_context.cam_pm_wkdep =
448 prm_read_mod_reg(OMAP3430_CAM_MOD, PM_WKDEP);
449 prcm_context.per_pm_wkdep =
450 prm_read_mod_reg(OMAP3430_PER_MOD, PM_WKDEP);
451 prcm_context.neon_pm_wkdep =
452 prm_read_mod_reg(OMAP3430_NEON_MOD, PM_WKDEP);
453 prcm_context.usbhost_pm_wkdep =
454 prm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, PM_WKDEP);
455 prcm_context.core_pm_mpugrpsel1 =
456 prm_read_mod_reg(CORE_MOD, OMAP3430_PM_MPUGRPSEL1);
457 prcm_context.iva2_pm_ivagrpsel1 =
458 prm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_PM_IVAGRPSEL1);
459 prcm_context.core_pm_mpugrpsel3 =
460 prm_read_mod_reg(CORE_MOD, OMAP3430ES2_PM_MPUGRPSEL3);
461 prcm_context.core_pm_ivagrpsel3 =
462 prm_read_mod_reg(CORE_MOD, OMAP3430ES2_PM_IVAGRPSEL3);
463 prcm_context.wkup_pm_mpugrpsel =
464 prm_read_mod_reg(WKUP_MOD, OMAP3430_PM_MPUGRPSEL);
465 prcm_context.wkup_pm_ivagrpsel =
466 prm_read_mod_reg(WKUP_MOD, OMAP3430_PM_IVAGRPSEL);
467 prcm_context.per_pm_mpugrpsel =
468 prm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_PM_MPUGRPSEL);
469 prcm_context.per_pm_ivagrpsel =
470 prm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL);
471 prcm_context.wkup_pm_wken = prm_read_mod_reg(WKUP_MOD, PM_WKEN);
472 return;
473}
474
475void omap3_prcm_restore_context(void)
476{
477 omap_ctrl_writel(prcm_context.control_padconf_sys_nirq,
478 OMAP343X_CONTROL_PADCONF_SYSNIRQ);
Jouni Hogander133464d2009-02-05 13:34:01 +0200479 cm_write_mod_reg(prcm_context.iva2_cm_clksel1, OMAP3430_IVA2_MOD,
480 CM_CLKSEL1);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530481 cm_write_mod_reg(prcm_context.iva2_cm_clksel2, OMAP3430_IVA2_MOD,
482 CM_CLKSEL2);
483 __raw_writel(prcm_context.cm_sysconfig, OMAP3430_CM_SYSCONFIG);
484 cm_write_mod_reg(prcm_context.sgx_cm_clksel, OMAP3430ES2_SGX_MOD,
485 CM_CLKSEL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530486 cm_write_mod_reg(prcm_context.dss_cm_clksel, OMAP3430_DSS_MOD,
487 CM_CLKSEL);
488 cm_write_mod_reg(prcm_context.cam_cm_clksel, OMAP3430_CAM_MOD,
489 CM_CLKSEL);
490 cm_write_mod_reg(prcm_context.per_cm_clksel, OMAP3430_PER_MOD,
491 CM_CLKSEL);
492 cm_write_mod_reg(prcm_context.emu_cm_clksel, OMAP3430_EMU_MOD,
493 CM_CLKSEL1);
494 cm_write_mod_reg(prcm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700495 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530496 cm_write_mod_reg(prcm_context.pll_cm_autoidle2, PLL_MOD,
497 CM_AUTOIDLE2);
498 cm_write_mod_reg(prcm_context.pll_cm_clksel4, PLL_MOD,
499 OMAP3430ES2_CM_CLKSEL4);
500 cm_write_mod_reg(prcm_context.pll_cm_clksel5, PLL_MOD,
501 OMAP3430ES2_CM_CLKSEL5);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530502 cm_write_mod_reg(prcm_context.pll_cm_clken2, PLL_MOD,
503 OMAP3430ES2_CM_CLKEN2);
504 __raw_writel(prcm_context.cm_polctrl, OMAP3430_CM_POLCTRL);
505 cm_write_mod_reg(prcm_context.iva2_cm_fclken, OMAP3430_IVA2_MOD,
506 CM_FCLKEN);
507 cm_write_mod_reg(prcm_context.iva2_cm_clken_pll, OMAP3430_IVA2_MOD,
508 OMAP3430_CM_CLKEN_PLL);
509 cm_write_mod_reg(prcm_context.core_cm_fclken1, CORE_MOD, CM_FCLKEN1);
510 cm_write_mod_reg(prcm_context.core_cm_fclken3, CORE_MOD,
511 OMAP3430ES2_CM_FCLKEN3);
512 cm_write_mod_reg(prcm_context.sgx_cm_fclken, OMAP3430ES2_SGX_MOD,
513 CM_FCLKEN);
514 cm_write_mod_reg(prcm_context.wkup_cm_fclken, WKUP_MOD, CM_FCLKEN);
515 cm_write_mod_reg(prcm_context.dss_cm_fclken, OMAP3430_DSS_MOD,
516 CM_FCLKEN);
517 cm_write_mod_reg(prcm_context.cam_cm_fclken, OMAP3430_CAM_MOD,
518 CM_FCLKEN);
519 cm_write_mod_reg(prcm_context.per_cm_fclken, OMAP3430_PER_MOD,
520 CM_FCLKEN);
521 cm_write_mod_reg(prcm_context.usbhost_cm_fclken,
522 OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
523 cm_write_mod_reg(prcm_context.core_cm_iclken1, CORE_MOD, CM_ICLKEN1);
524 cm_write_mod_reg(prcm_context.core_cm_iclken2, CORE_MOD, CM_ICLKEN2);
525 cm_write_mod_reg(prcm_context.core_cm_iclken3, CORE_MOD, CM_ICLKEN3);
526 cm_write_mod_reg(prcm_context.sgx_cm_iclken, OMAP3430ES2_SGX_MOD,
527 CM_ICLKEN);
528 cm_write_mod_reg(prcm_context.wkup_cm_iclken, WKUP_MOD, CM_ICLKEN);
529 cm_write_mod_reg(prcm_context.dss_cm_iclken, OMAP3430_DSS_MOD,
530 CM_ICLKEN);
531 cm_write_mod_reg(prcm_context.cam_cm_iclken, OMAP3430_CAM_MOD,
532 CM_ICLKEN);
533 cm_write_mod_reg(prcm_context.per_cm_iclken, OMAP3430_PER_MOD,
534 CM_ICLKEN);
535 cm_write_mod_reg(prcm_context.usbhost_cm_iclken,
536 OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
537 cm_write_mod_reg(prcm_context.iva2_cm_autiidle2, OMAP3430_IVA2_MOD,
538 CM_AUTOIDLE2);
539 cm_write_mod_reg(prcm_context.mpu_cm_autoidle2, MPU_MOD, CM_AUTOIDLE2);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530540 cm_write_mod_reg(prcm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700541 OMAP2_CM_CLKSTCTRL);
542 cm_write_mod_reg(prcm_context.mpu_cm_clkstctrl, MPU_MOD,
543 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530544 cm_write_mod_reg(prcm_context.core_cm_clkstctrl, CORE_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700545 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530546 cm_write_mod_reg(prcm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700547 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530548 cm_write_mod_reg(prcm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700549 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530550 cm_write_mod_reg(prcm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700551 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530552 cm_write_mod_reg(prcm_context.per_cm_clkstctrl, OMAP3430_PER_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700553 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530554 cm_write_mod_reg(prcm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700555 OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530556 cm_write_mod_reg(prcm_context.usbhost_cm_clkstctrl,
Abhijit Pagare84c0c392010-01-26 20:12:53 -0700557 OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL);
Rajendra Nayakc171a252008-09-26 17:48:31 +0530558 cm_write_mod_reg(prcm_context.core_cm_autoidle1, CORE_MOD,
559 CM_AUTOIDLE1);
560 cm_write_mod_reg(prcm_context.core_cm_autoidle2, CORE_MOD,
561 CM_AUTOIDLE2);
562 cm_write_mod_reg(prcm_context.core_cm_autoidle3, CORE_MOD,
563 CM_AUTOIDLE3);
564 cm_write_mod_reg(prcm_context.wkup_cm_autoidle, WKUP_MOD, CM_AUTOIDLE);
565 cm_write_mod_reg(prcm_context.dss_cm_autoidle, OMAP3430_DSS_MOD,
566 CM_AUTOIDLE);
567 cm_write_mod_reg(prcm_context.cam_cm_autoidle, OMAP3430_CAM_MOD,
568 CM_AUTOIDLE);
569 cm_write_mod_reg(prcm_context.per_cm_autoidle, OMAP3430_PER_MOD,
570 CM_AUTOIDLE);
571 cm_write_mod_reg(prcm_context.usbhost_cm_autoidle,
572 OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
573 cm_write_mod_reg(prcm_context.sgx_cm_sleepdep, OMAP3430ES2_SGX_MOD,
574 OMAP3430_CM_SLEEPDEP);
575 cm_write_mod_reg(prcm_context.dss_cm_sleepdep, OMAP3430_DSS_MOD,
576 OMAP3430_CM_SLEEPDEP);
577 cm_write_mod_reg(prcm_context.cam_cm_sleepdep, OMAP3430_CAM_MOD,
578 OMAP3430_CM_SLEEPDEP);
579 cm_write_mod_reg(prcm_context.per_cm_sleepdep, OMAP3430_PER_MOD,
580 OMAP3430_CM_SLEEPDEP);
581 cm_write_mod_reg(prcm_context.usbhost_cm_sleepdep,
582 OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP);
583 cm_write_mod_reg(prcm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD,
584 OMAP3_CM_CLKOUT_CTRL_OFFSET);
585 prm_write_mod_reg(prcm_context.prm_clkout_ctrl, OMAP3430_CCR_MOD,
586 OMAP3_PRM_CLKOUT_CTRL_OFFSET);
587 prm_write_mod_reg(prcm_context.sgx_pm_wkdep, OMAP3430ES2_SGX_MOD,
588 PM_WKDEP);
589 prm_write_mod_reg(prcm_context.dss_pm_wkdep, OMAP3430_DSS_MOD,
590 PM_WKDEP);
591 prm_write_mod_reg(prcm_context.cam_pm_wkdep, OMAP3430_CAM_MOD,
592 PM_WKDEP);
593 prm_write_mod_reg(prcm_context.per_pm_wkdep, OMAP3430_PER_MOD,
594 PM_WKDEP);
595 prm_write_mod_reg(prcm_context.neon_pm_wkdep, OMAP3430_NEON_MOD,
596 PM_WKDEP);
597 prm_write_mod_reg(prcm_context.usbhost_pm_wkdep,
598 OMAP3430ES2_USBHOST_MOD, PM_WKDEP);
599 prm_write_mod_reg(prcm_context.core_pm_mpugrpsel1, CORE_MOD,
600 OMAP3430_PM_MPUGRPSEL1);
601 prm_write_mod_reg(prcm_context.iva2_pm_ivagrpsel1, OMAP3430_IVA2_MOD,
602 OMAP3430_PM_IVAGRPSEL1);
603 prm_write_mod_reg(prcm_context.core_pm_mpugrpsel3, CORE_MOD,
604 OMAP3430ES2_PM_MPUGRPSEL3);
605 prm_write_mod_reg(prcm_context.core_pm_ivagrpsel3, CORE_MOD,
606 OMAP3430ES2_PM_IVAGRPSEL3);
607 prm_write_mod_reg(prcm_context.wkup_pm_mpugrpsel, WKUP_MOD,
608 OMAP3430_PM_MPUGRPSEL);
609 prm_write_mod_reg(prcm_context.wkup_pm_ivagrpsel, WKUP_MOD,
610 OMAP3430_PM_IVAGRPSEL);
611 prm_write_mod_reg(prcm_context.per_pm_mpugrpsel, OMAP3430_PER_MOD,
612 OMAP3430_PM_MPUGRPSEL);
613 prm_write_mod_reg(prcm_context.per_pm_ivagrpsel, OMAP3430_PER_MOD,
614 OMAP3430_PM_IVAGRPSEL);
615 prm_write_mod_reg(prcm_context.wkup_pm_wken, WKUP_MOD, PM_WKEN);
616 return;
617}
618#endif