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review.evervolv.com / android_kernel_htc_msm8960 / 22e9cd9dc9b51f5ad96588ecbfde5f3221e0e6dd / . / arch / arm / mach-omap2 / cm2xxx_3xxx.c
blob: 38830d8d47835d30db060b77c49d4beb385ded4a [file] [log] [blame]
Paul Walmsley71348bc2009-09-03 20:14:02 +0300[diff] [blame]1/*
2 * OMAP2/3 CM module functions
3 *
4 * Copyright (C) 2009 Nokia Corporation
5 * Paul Walmsley
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#include <linux/kernel.h>
Paul Walmsley71348bc2009-09-03 20:14:02 +0300[diff] [blame]13#include <linux/types.h>
14#include <linux/delay.h>
15#include <linux/spinlock.h>
16#include <linux/list.h>
17#include <linux/errno.h>
18#include <linux/err.h>
19#include <linux/io.h>
20
Paul Walmsley6f8b7ff2009-12-08 16:33:16 -0700[diff] [blame]21#include <plat/common.h>
22
Paul Walmsley71348bc2009-09-03 20:14:02 +0300[diff] [blame]23#include "cm.h"
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]24#include "cm2xxx_3xxx.h"
Paul Walmsley71348bc2009-09-03 20:14:02 +0300[diff] [blame]25#include "cm-regbits-24xx.h"
26#include "cm-regbits-34xx.h"
27
Paul Walmsley92618ff2011-02-25 15:39:27 -0700[diff] [blame]28/* CM_AUTOIDLE_PLL.AUTO_* bit values for DPLLs */
Paul Walmsley0fd0c212011-02-25 15:49:53 -0700[diff] [blame]29#define DPLL_AUTOIDLE_DISABLE 0x0
30#define OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP 0x3
31
Paul Walmsley92618ff2011-02-25 15:39:27 -0700[diff] [blame]32/* CM_AUTOIDLE_PLL.AUTO_* bit values for APLLs (OMAP2xxx only) */
33#define OMAP2XXX_APLL_AUTOIDLE_DISABLE 0x0
34#define OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP 0x3
35
Paul Walmsley71348bc2009-09-03 20:14:02 +0300[diff] [blame]36static const u8 cm_idlest_offs[] = {
37 CM_IDLEST1, CM_IDLEST2, OMAP2430_CM_IDLEST3
38};
39
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]40u32 omap2_cm_read_mod_reg(s16 module, u16 idx)
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]41{
42 return __raw_readl(cm_base + module + idx);
43}
44
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]45void omap2_cm_write_mod_reg(u32 val, s16 module, u16 idx)
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]46{
47 __raw_writel(val, cm_base + module + idx);
48}
49
50/* Read-modify-write a register in a CM module. Caller must lock */
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]51u32 omap2_cm_rmw_mod_reg_bits(u32 mask, u32 bits, s16 module, s16 idx)
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]52{
53 u32 v;
54
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]55 v = omap2_cm_read_mod_reg(module, idx);
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]56 v &= ~mask;
57 v |= bits;
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]58 omap2_cm_write_mod_reg(v, module, idx);
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]59
60 return v;
61}
62
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]63u32 omap2_cm_set_mod_reg_bits(u32 bits, s16 module, s16 idx)
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]64{
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]65 return omap2_cm_rmw_mod_reg_bits(bits, bits, module, idx);
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]66}
67
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]68u32 omap2_cm_clear_mod_reg_bits(u32 bits, s16 module, s16 idx)
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]69{
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]70 return omap2_cm_rmw_mod_reg_bits(bits, 0x0, module, idx);
Paul Walmsley59fb6592010-12-21 15:30:55 -0700[diff] [blame]71}
72
Paul Walmsley55ae3502010-12-21 21:05:15 -0700[diff] [blame]73/*
74 *
75 */
76
77static void _write_clktrctrl(u8 c, s16 module, u32 mask)
78{
79 u32 v;
80
81 v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
82 v &= ~mask;
83 v |= c << __ffs(mask);
84 omap2_cm_write_mod_reg(v, module, OMAP2_CM_CLKSTCTRL);
85}
86
87bool omap2_cm_is_clkdm_in_hwsup(s16 module, u32 mask)
88{
89 u32 v;
90 bool ret = 0;
91
92 BUG_ON(!cpu_is_omap24xx() && !cpu_is_omap34xx());
93
94 v = omap2_cm_read_mod_reg(module, OMAP2_CM_CLKSTCTRL);
95 v &= mask;
96 v >>= __ffs(mask);
97
98 if (cpu_is_omap24xx())
99 ret = (v == OMAP24XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0;
100 else
101 ret = (v == OMAP34XX_CLKSTCTRL_ENABLE_AUTO) ? 1 : 0;
102
103 return ret;
104}
105
106void omap2xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask)
107{
108 _write_clktrctrl(OMAP24XX_CLKSTCTRL_ENABLE_AUTO, module, mask);
109}
110
111void omap2xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask)
112{
113 _write_clktrctrl(OMAP24XX_CLKSTCTRL_DISABLE_AUTO, module, mask);
114}
115
116void omap3xxx_cm_clkdm_enable_hwsup(s16 module, u32 mask)
117{
118 _write_clktrctrl(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, module, mask);
119}
120
121void omap3xxx_cm_clkdm_disable_hwsup(s16 module, u32 mask)
122{
123 _write_clktrctrl(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, module, mask);
124}
125
126void omap3xxx_cm_clkdm_force_sleep(s16 module, u32 mask)
127{
128 _write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, module, mask);
129}
130
131void omap3xxx_cm_clkdm_force_wakeup(s16 module, u32 mask)
132{
133 _write_clktrctrl(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, module, mask);
134}
135
Paul Walmsley0fd0c212011-02-25 15:49:53 -0700[diff] [blame]136/*
137 * DPLL autoidle control
138 */
139
140static void _omap2xxx_set_dpll_autoidle(u8 m)
141{
142 u32 v;
143
144 v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
145 v &= ~OMAP24XX_AUTO_DPLL_MASK;
146 v |= m << OMAP24XX_AUTO_DPLL_SHIFT;
147 omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE);
148}
149
150void omap2xxx_cm_set_dpll_disable_autoidle(void)
151{
152 _omap2xxx_set_dpll_autoidle(OMAP2XXX_DPLL_AUTOIDLE_LOW_POWER_STOP);
153}
154
155void omap2xxx_cm_set_dpll_auto_low_power_stop(void)
156{
157 _omap2xxx_set_dpll_autoidle(DPLL_AUTOIDLE_DISABLE);
158}
Paul Walmsley55ae3502010-12-21 21:05:15 -0700[diff] [blame]159
160/*
Paul Walmsley92618ff2011-02-25 15:39:27 -0700[diff] [blame]161 * APLL autoidle control
162 */
163
164static void _omap2xxx_set_apll_autoidle(u8 m, u32 mask)
165{
166 u32 v;
167
168 v = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
169 v &= ~mask;
170 v |= m << __ffs(mask);
171 omap2_cm_write_mod_reg(v, PLL_MOD, CM_AUTOIDLE);
172}
173
174void omap2xxx_cm_set_apll54_disable_autoidle(void)
175{
176 _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP,
177 OMAP24XX_AUTO_54M_MASK);
178}
179
180void omap2xxx_cm_set_apll54_auto_low_power_stop(void)
181{
182 _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE,
183 OMAP24XX_AUTO_54M_MASK);
184}
185
186void omap2xxx_cm_set_apll96_disable_autoidle(void)
187{
188 _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_LOW_POWER_STOP,
189 OMAP24XX_AUTO_96M_MASK);
190}
191
192void omap2xxx_cm_set_apll96_auto_low_power_stop(void)
193{
194 _omap2xxx_set_apll_autoidle(OMAP2XXX_APLL_AUTOIDLE_DISABLE,
195 OMAP24XX_AUTO_96M_MASK);
196}
197
198/*
Paul Walmsley55ae3502010-12-21 21:05:15 -0700[diff] [blame]199 *
200 */
201
Paul Walmsley71348bc2009-09-03 20:14:02 +0300[diff] [blame]202/**
203 * omap2_cm_wait_idlest_ready - wait for a module to leave idle or standby
204 * @prcm_mod: PRCM module offset
205 * @idlest_id: CM_IDLESTx register ID (i.e., x = 1, 2, 3)
206 * @idlest_shift: shift of the bit in the CM_IDLEST* register to check
207 *
208 * XXX document
209 */
210int omap2_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id, u8 idlest_shift)
211{
212 int ena = 0, i = 0;
213 u8 cm_idlest_reg;
214 u32 mask;
215
216 if (!idlest_id || (idlest_id > ARRAY_SIZE(cm_idlest_offs)))
217 return -EINVAL;
218
219 cm_idlest_reg = cm_idlest_offs[idlest_id - 1];
220
Kevin Hilman64056162010-07-26 16:34:28 -0600[diff] [blame]221 mask = 1 << idlest_shift;
222
Paul Walmsley71348bc2009-09-03 20:14:02 +0300[diff] [blame]223 if (cpu_is_omap24xx())
Kevin Hilman64056162010-07-26 16:34:28 -0600[diff] [blame]224 ena = mask;
Paul Walmsley71348bc2009-09-03 20:14:02 +0300[diff] [blame]225 else if (cpu_is_omap34xx())
226 ena = 0;
227 else
228 BUG();
229
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]230 omap_test_timeout(((omap2_cm_read_mod_reg(prcm_mod, cm_idlest_reg) & mask) == ena),
Paul Walmsley6f8b7ff2009-12-08 16:33:16 -0700[diff] [blame]231 MAX_MODULE_READY_TIME, i);
Paul Walmsley71348bc2009-09-03 20:14:02 +0300[diff] [blame]232
233 return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY;
234}
235
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]236/*
237 * Context save/restore code - OMAP3 only
238 */
239#ifdef CONFIG_ARCH_OMAP3
240struct omap3_cm_regs {
241 u32 iva2_cm_clksel1;
242 u32 iva2_cm_clksel2;
243 u32 cm_sysconfig;
244 u32 sgx_cm_clksel;
245 u32 dss_cm_clksel;
246 u32 cam_cm_clksel;
247 u32 per_cm_clksel;
248 u32 emu_cm_clksel;
249 u32 emu_cm_clkstctrl;
Eduardo Valentina8ae6452011-04-13 18:21:07 +0300[diff] [blame]250 u32 pll_cm_autoidle;
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]251 u32 pll_cm_autoidle2;
252 u32 pll_cm_clksel4;
253 u32 pll_cm_clksel5;
254 u32 pll_cm_clken2;
255 u32 cm_polctrl;
256 u32 iva2_cm_fclken;
257 u32 iva2_cm_clken_pll;
258 u32 core_cm_fclken1;
259 u32 core_cm_fclken3;
260 u32 sgx_cm_fclken;
261 u32 wkup_cm_fclken;
262 u32 dss_cm_fclken;
263 u32 cam_cm_fclken;
264 u32 per_cm_fclken;
265 u32 usbhost_cm_fclken;
266 u32 core_cm_iclken1;
267 u32 core_cm_iclken2;
268 u32 core_cm_iclken3;
269 u32 sgx_cm_iclken;
270 u32 wkup_cm_iclken;
271 u32 dss_cm_iclken;
272 u32 cam_cm_iclken;
273 u32 per_cm_iclken;
274 u32 usbhost_cm_iclken;
275 u32 iva2_cm_autoidle2;
276 u32 mpu_cm_autoidle2;
277 u32 iva2_cm_clkstctrl;
278 u32 mpu_cm_clkstctrl;
279 u32 core_cm_clkstctrl;
280 u32 sgx_cm_clkstctrl;
281 u32 dss_cm_clkstctrl;
282 u32 cam_cm_clkstctrl;
283 u32 per_cm_clkstctrl;
284 u32 neon_cm_clkstctrl;
285 u32 usbhost_cm_clkstctrl;
286 u32 core_cm_autoidle1;
287 u32 core_cm_autoidle2;
288 u32 core_cm_autoidle3;
289 u32 wkup_cm_autoidle;
290 u32 dss_cm_autoidle;
291 u32 cam_cm_autoidle;
292 u32 per_cm_autoidle;
293 u32 usbhost_cm_autoidle;
294 u32 sgx_cm_sleepdep;
295 u32 dss_cm_sleepdep;
296 u32 cam_cm_sleepdep;
297 u32 per_cm_sleepdep;
298 u32 usbhost_cm_sleepdep;
299 u32 cm_clkout_ctrl;
300};
301
302static struct omap3_cm_regs cm_context;
303
304void omap3_cm_save_context(void)
305{
306 cm_context.iva2_cm_clksel1 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]307 omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL1);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]308 cm_context.iva2_cm_clksel2 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]309 omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_CLKSEL2);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]310 cm_context.cm_sysconfig = __raw_readl(OMAP3430_CM_SYSCONFIG);
311 cm_context.sgx_cm_clksel =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]312 omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_CLKSEL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]313 cm_context.dss_cm_clksel =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]314 omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_CLKSEL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]315 cm_context.cam_cm_clksel =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]316 omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_CLKSEL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]317 cm_context.per_cm_clksel =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]318 omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_CLKSEL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]319 cm_context.emu_cm_clksel =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]320 omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, CM_CLKSEL1);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]321 cm_context.emu_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]322 omap2_cm_read_mod_reg(OMAP3430_EMU_MOD, OMAP2_CM_CLKSTCTRL);
Eduardo Valentina8ae6452011-04-13 18:21:07 +0300[diff] [blame]323 /*
324 * As per erratum i671, ROM code does not respect the PER DPLL
325 * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1.
326 * In this case, even though this register has been saved in
327 * scratchpad contents, we need to restore AUTO_PERIPH_DPLL
328 * by ourselves. So, we need to save it anyway.
329 */
330 cm_context.pll_cm_autoidle =
331 omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]332 cm_context.pll_cm_autoidle2 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]333 omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE2);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]334 cm_context.pll_cm_clksel4 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]335 omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL4);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]336 cm_context.pll_cm_clksel5 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]337 omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKSEL5);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]338 cm_context.pll_cm_clken2 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]339 omap2_cm_read_mod_reg(PLL_MOD, OMAP3430ES2_CM_CLKEN2);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]340 cm_context.cm_polctrl = __raw_readl(OMAP3430_CM_POLCTRL);
341 cm_context.iva2_cm_fclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]342 omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_FCLKEN);
343 cm_context.iva2_cm_clken_pll =
344 omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP3430_CM_CLKEN_PLL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]345 cm_context.core_cm_fclken1 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]346 omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]347 cm_context.core_cm_fclken3 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]348 omap2_cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]349 cm_context.sgx_cm_fclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]350 omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_FCLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]351 cm_context.wkup_cm_fclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]352 omap2_cm_read_mod_reg(WKUP_MOD, CM_FCLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]353 cm_context.dss_cm_fclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]354 omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_FCLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]355 cm_context.cam_cm_fclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]356 omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_FCLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]357 cm_context.per_cm_fclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]358 omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]359 cm_context.usbhost_cm_fclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]360 omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]361 cm_context.core_cm_iclken1 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]362 omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN1);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]363 cm_context.core_cm_iclken2 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]364 omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN2);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]365 cm_context.core_cm_iclken3 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]366 omap2_cm_read_mod_reg(CORE_MOD, CM_ICLKEN3);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]367 cm_context.sgx_cm_iclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]368 omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, CM_ICLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]369 cm_context.wkup_cm_iclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]370 omap2_cm_read_mod_reg(WKUP_MOD, CM_ICLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]371 cm_context.dss_cm_iclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]372 omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_ICLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]373 cm_context.cam_cm_iclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]374 omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_ICLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]375 cm_context.per_cm_iclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]376 omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]377 cm_context.usbhost_cm_iclken =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]378 omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]379 cm_context.iva2_cm_autoidle2 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]380 omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, CM_AUTOIDLE2);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]381 cm_context.mpu_cm_autoidle2 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]382 omap2_cm_read_mod_reg(MPU_MOD, CM_AUTOIDLE2);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]383 cm_context.iva2_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]384 omap2_cm_read_mod_reg(OMAP3430_IVA2_MOD, OMAP2_CM_CLKSTCTRL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]385 cm_context.mpu_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]386 omap2_cm_read_mod_reg(MPU_MOD, OMAP2_CM_CLKSTCTRL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]387 cm_context.core_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]388 omap2_cm_read_mod_reg(CORE_MOD, OMAP2_CM_CLKSTCTRL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]389 cm_context.sgx_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]390 omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD, OMAP2_CM_CLKSTCTRL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]391 cm_context.dss_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]392 omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP2_CM_CLKSTCTRL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]393 cm_context.cam_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]394 omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP2_CM_CLKSTCTRL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]395 cm_context.per_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]396 omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP2_CM_CLKSTCTRL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]397 cm_context.neon_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]398 omap2_cm_read_mod_reg(OMAP3430_NEON_MOD, OMAP2_CM_CLKSTCTRL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]399 cm_context.usbhost_cm_clkstctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]400 omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
401 OMAP2_CM_CLKSTCTRL);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]402 cm_context.core_cm_autoidle1 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]403 omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE1);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]404 cm_context.core_cm_autoidle2 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]405 omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE2);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]406 cm_context.core_cm_autoidle3 =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]407 omap2_cm_read_mod_reg(CORE_MOD, CM_AUTOIDLE3);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]408 cm_context.wkup_cm_autoidle =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]409 omap2_cm_read_mod_reg(WKUP_MOD, CM_AUTOIDLE);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]410 cm_context.dss_cm_autoidle =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]411 omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, CM_AUTOIDLE);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]412 cm_context.cam_cm_autoidle =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]413 omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, CM_AUTOIDLE);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]414 cm_context.per_cm_autoidle =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]415 omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]416 cm_context.usbhost_cm_autoidle =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]417 omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]418 cm_context.sgx_cm_sleepdep =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]419 omap2_cm_read_mod_reg(OMAP3430ES2_SGX_MOD,
420 OMAP3430_CM_SLEEPDEP);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]421 cm_context.dss_cm_sleepdep =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]422 omap2_cm_read_mod_reg(OMAP3430_DSS_MOD, OMAP3430_CM_SLEEPDEP);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]423 cm_context.cam_cm_sleepdep =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]424 omap2_cm_read_mod_reg(OMAP3430_CAM_MOD, OMAP3430_CM_SLEEPDEP);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]425 cm_context.per_cm_sleepdep =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]426 omap2_cm_read_mod_reg(OMAP3430_PER_MOD, OMAP3430_CM_SLEEPDEP);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]427 cm_context.usbhost_cm_sleepdep =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]428 omap2_cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD,
429 OMAP3430_CM_SLEEPDEP);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]430 cm_context.cm_clkout_ctrl =
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]431 omap2_cm_read_mod_reg(OMAP3430_CCR_MOD,
432 OMAP3_CM_CLKOUT_CTRL_OFFSET);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]433}
434
435void omap3_cm_restore_context(void)
436{
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]437 omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel1, OMAP3430_IVA2_MOD,
438 CM_CLKSEL1);
439 omap2_cm_write_mod_reg(cm_context.iva2_cm_clksel2, OMAP3430_IVA2_MOD,
440 CM_CLKSEL2);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]441 __raw_writel(cm_context.cm_sysconfig, OMAP3430_CM_SYSCONFIG);
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]442 omap2_cm_write_mod_reg(cm_context.sgx_cm_clksel, OMAP3430ES2_SGX_MOD,
443 CM_CLKSEL);
444 omap2_cm_write_mod_reg(cm_context.dss_cm_clksel, OMAP3430_DSS_MOD,
445 CM_CLKSEL);
446 omap2_cm_write_mod_reg(cm_context.cam_cm_clksel, OMAP3430_CAM_MOD,
447 CM_CLKSEL);
448 omap2_cm_write_mod_reg(cm_context.per_cm_clksel, OMAP3430_PER_MOD,
449 CM_CLKSEL);
450 omap2_cm_write_mod_reg(cm_context.emu_cm_clksel, OMAP3430_EMU_MOD,
451 CM_CLKSEL1);
452 omap2_cm_write_mod_reg(cm_context.emu_cm_clkstctrl, OMAP3430_EMU_MOD,
453 OMAP2_CM_CLKSTCTRL);
Eduardo Valentina8ae6452011-04-13 18:21:07 +0300[diff] [blame]454 /*
455 * As per erratum i671, ROM code does not respect the PER DPLL
456 * programming scheme if CM_AUTOIDLE_PLL.AUTO_PERIPH_DPLL == 1.
457 * In this case, we need to restore AUTO_PERIPH_DPLL by ourselves.
458 */
459 omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle, PLL_MOD,
460 CM_AUTOIDLE);
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]461 omap2_cm_write_mod_reg(cm_context.pll_cm_autoidle2, PLL_MOD,
462 CM_AUTOIDLE2);
463 omap2_cm_write_mod_reg(cm_context.pll_cm_clksel4, PLL_MOD,
464 OMAP3430ES2_CM_CLKSEL4);
465 omap2_cm_write_mod_reg(cm_context.pll_cm_clksel5, PLL_MOD,
466 OMAP3430ES2_CM_CLKSEL5);
467 omap2_cm_write_mod_reg(cm_context.pll_cm_clken2, PLL_MOD,
468 OMAP3430ES2_CM_CLKEN2);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]469 __raw_writel(cm_context.cm_polctrl, OMAP3430_CM_POLCTRL);
Paul Walmsleyc4d7e582010-12-21 21:05:14 -0700[diff] [blame]470 omap2_cm_write_mod_reg(cm_context.iva2_cm_fclken, OMAP3430_IVA2_MOD,
471 CM_FCLKEN);
472 omap2_cm_write_mod_reg(cm_context.iva2_cm_clken_pll, OMAP3430_IVA2_MOD,
473 OMAP3430_CM_CLKEN_PLL);
474 omap2_cm_write_mod_reg(cm_context.core_cm_fclken1, CORE_MOD,
475 CM_FCLKEN1);
476 omap2_cm_write_mod_reg(cm_context.core_cm_fclken3, CORE_MOD,
477 OMAP3430ES2_CM_FCLKEN3);
478 omap2_cm_write_mod_reg(cm_context.sgx_cm_fclken, OMAP3430ES2_SGX_MOD,
479 CM_FCLKEN);
480 omap2_cm_write_mod_reg(cm_context.wkup_cm_fclken, WKUP_MOD, CM_FCLKEN);
481 omap2_cm_write_mod_reg(cm_context.dss_cm_fclken, OMAP3430_DSS_MOD,
482 CM_FCLKEN);
483 omap2_cm_write_mod_reg(cm_context.cam_cm_fclken, OMAP3430_CAM_MOD,
484 CM_FCLKEN);
485 omap2_cm_write_mod_reg(cm_context.per_cm_fclken, OMAP3430_PER_MOD,
486 CM_FCLKEN);
487 omap2_cm_write_mod_reg(cm_context.usbhost_cm_fclken,
488 OMAP3430ES2_USBHOST_MOD, CM_FCLKEN);
489 omap2_cm_write_mod_reg(cm_context.core_cm_iclken1, CORE_MOD,
490 CM_ICLKEN1);
491 omap2_cm_write_mod_reg(cm_context.core_cm_iclken2, CORE_MOD,
492 CM_ICLKEN2);
493 omap2_cm_write_mod_reg(cm_context.core_cm_iclken3, CORE_MOD,
494 CM_ICLKEN3);
495 omap2_cm_write_mod_reg(cm_context.sgx_cm_iclken, OMAP3430ES2_SGX_MOD,
496 CM_ICLKEN);
497 omap2_cm_write_mod_reg(cm_context.wkup_cm_iclken, WKUP_MOD, CM_ICLKEN);
498 omap2_cm_write_mod_reg(cm_context.dss_cm_iclken, OMAP3430_DSS_MOD,
499 CM_ICLKEN);
500 omap2_cm_write_mod_reg(cm_context.cam_cm_iclken, OMAP3430_CAM_MOD,
501 CM_ICLKEN);
502 omap2_cm_write_mod_reg(cm_context.per_cm_iclken, OMAP3430_PER_MOD,
503 CM_ICLKEN);
504 omap2_cm_write_mod_reg(cm_context.usbhost_cm_iclken,
505 OMAP3430ES2_USBHOST_MOD, CM_ICLKEN);
506 omap2_cm_write_mod_reg(cm_context.iva2_cm_autoidle2, OMAP3430_IVA2_MOD,
507 CM_AUTOIDLE2);
508 omap2_cm_write_mod_reg(cm_context.mpu_cm_autoidle2, MPU_MOD,
509 CM_AUTOIDLE2);
510 omap2_cm_write_mod_reg(cm_context.iva2_cm_clkstctrl, OMAP3430_IVA2_MOD,
511 OMAP2_CM_CLKSTCTRL);
512 omap2_cm_write_mod_reg(cm_context.mpu_cm_clkstctrl, MPU_MOD,
513 OMAP2_CM_CLKSTCTRL);
514 omap2_cm_write_mod_reg(cm_context.core_cm_clkstctrl, CORE_MOD,
515 OMAP2_CM_CLKSTCTRL);
516 omap2_cm_write_mod_reg(cm_context.sgx_cm_clkstctrl, OMAP3430ES2_SGX_MOD,
517 OMAP2_CM_CLKSTCTRL);
518 omap2_cm_write_mod_reg(cm_context.dss_cm_clkstctrl, OMAP3430_DSS_MOD,
519 OMAP2_CM_CLKSTCTRL);
520 omap2_cm_write_mod_reg(cm_context.cam_cm_clkstctrl, OMAP3430_CAM_MOD,
521 OMAP2_CM_CLKSTCTRL);
522 omap2_cm_write_mod_reg(cm_context.per_cm_clkstctrl, OMAP3430_PER_MOD,
523 OMAP2_CM_CLKSTCTRL);
524 omap2_cm_write_mod_reg(cm_context.neon_cm_clkstctrl, OMAP3430_NEON_MOD,
525 OMAP2_CM_CLKSTCTRL);
526 omap2_cm_write_mod_reg(cm_context.usbhost_cm_clkstctrl,
527 OMAP3430ES2_USBHOST_MOD, OMAP2_CM_CLKSTCTRL);
528 omap2_cm_write_mod_reg(cm_context.core_cm_autoidle1, CORE_MOD,
529 CM_AUTOIDLE1);
530 omap2_cm_write_mod_reg(cm_context.core_cm_autoidle2, CORE_MOD,
531 CM_AUTOIDLE2);
532 omap2_cm_write_mod_reg(cm_context.core_cm_autoidle3, CORE_MOD,
533 CM_AUTOIDLE3);
534 omap2_cm_write_mod_reg(cm_context.wkup_cm_autoidle, WKUP_MOD,
535 CM_AUTOIDLE);
536 omap2_cm_write_mod_reg(cm_context.dss_cm_autoidle, OMAP3430_DSS_MOD,
537 CM_AUTOIDLE);
538 omap2_cm_write_mod_reg(cm_context.cam_cm_autoidle, OMAP3430_CAM_MOD,
539 CM_AUTOIDLE);
540 omap2_cm_write_mod_reg(cm_context.per_cm_autoidle, OMAP3430_PER_MOD,
541 CM_AUTOIDLE);
542 omap2_cm_write_mod_reg(cm_context.usbhost_cm_autoidle,
543 OMAP3430ES2_USBHOST_MOD, CM_AUTOIDLE);
544 omap2_cm_write_mod_reg(cm_context.sgx_cm_sleepdep, OMAP3430ES2_SGX_MOD,
545 OMAP3430_CM_SLEEPDEP);
546 omap2_cm_write_mod_reg(cm_context.dss_cm_sleepdep, OMAP3430_DSS_MOD,
547 OMAP3430_CM_SLEEPDEP);
548 omap2_cm_write_mod_reg(cm_context.cam_cm_sleepdep, OMAP3430_CAM_MOD,
549 OMAP3430_CM_SLEEPDEP);
550 omap2_cm_write_mod_reg(cm_context.per_cm_sleepdep, OMAP3430_PER_MOD,
551 OMAP3430_CM_SLEEPDEP);
552 omap2_cm_write_mod_reg(cm_context.usbhost_cm_sleepdep,
553 OMAP3430ES2_USBHOST_MOD, OMAP3430_CM_SLEEPDEP);
554 omap2_cm_write_mod_reg(cm_context.cm_clkout_ctrl, OMAP3430_CCR_MOD,
555 OMAP3_CM_CLKOUT_CTRL_OFFSET);
Paul Walmsleyf0611a52010-12-21 15:30:56 -0700[diff] [blame]556}
557#endif