2
* Sonics Silicon Backplane
3
* Broadcom ChipCommon Power Management Unit driver
5
* Copyright 2009, Michael Buesch <mb@bu3sch.de>
6
* Copyright 2007, Broadcom Corporation
8
* Licensed under the GNU/GPL. See COPYING for details.
11
#include <linux/ssb/ssb.h>
12
#include <linux/ssb/ssb_regs.h>
13
#include <linux/ssb/ssb_driver_chipcommon.h>
14
#include <linux/delay.h>
16
#include "ssb_private.h"
18
static u32 ssb_chipco_pll_read(struct ssb_chipcommon *cc, u32 offset)
20
chipco_write32(cc, SSB_CHIPCO_PLLCTL_ADDR, offset);
21
return chipco_read32(cc, SSB_CHIPCO_PLLCTL_DATA);
24
static void ssb_chipco_pll_write(struct ssb_chipcommon *cc,
25
u32 offset, u32 value)
27
chipco_write32(cc, SSB_CHIPCO_PLLCTL_ADDR, offset);
28
chipco_write32(cc, SSB_CHIPCO_PLLCTL_DATA, value);
31
static void ssb_chipco_regctl_maskset(struct ssb_chipcommon *cc,
32
u32 offset, u32 mask, u32 set)
36
chipco_read32(cc, SSB_CHIPCO_REGCTL_ADDR);
37
chipco_write32(cc, SSB_CHIPCO_REGCTL_ADDR, offset);
38
chipco_read32(cc, SSB_CHIPCO_REGCTL_ADDR);
39
value = chipco_read32(cc, SSB_CHIPCO_REGCTL_DATA);
42
chipco_write32(cc, SSB_CHIPCO_REGCTL_DATA, value);
43
chipco_read32(cc, SSB_CHIPCO_REGCTL_DATA);
46
struct pmu0_plltab_entry {
47
u16 freq; /* Crystal frequency in kHz.*/
48
u8 xf; /* Crystal frequency value for PMU control */
53
static const struct pmu0_plltab_entry pmu0_plltab[] = {
54
{ .freq = 12000, .xf = 1, .wb_int = 73, .wb_frac = 349525, },
55
{ .freq = 13000, .xf = 2, .wb_int = 67, .wb_frac = 725937, },
56
{ .freq = 14400, .xf = 3, .wb_int = 61, .wb_frac = 116508, },
57
{ .freq = 15360, .xf = 4, .wb_int = 57, .wb_frac = 305834, },
58
{ .freq = 16200, .xf = 5, .wb_int = 54, .wb_frac = 336579, },
59
{ .freq = 16800, .xf = 6, .wb_int = 52, .wb_frac = 399457, },
60
{ .freq = 19200, .xf = 7, .wb_int = 45, .wb_frac = 873813, },
61
{ .freq = 19800, .xf = 8, .wb_int = 44, .wb_frac = 466033, },
62
{ .freq = 20000, .xf = 9, .wb_int = 44, .wb_frac = 0, },
63
{ .freq = 25000, .xf = 10, .wb_int = 70, .wb_frac = 419430, },
64
{ .freq = 26000, .xf = 11, .wb_int = 67, .wb_frac = 725937, },
65
{ .freq = 30000, .xf = 12, .wb_int = 58, .wb_frac = 699050, },
66
{ .freq = 38400, .xf = 13, .wb_int = 45, .wb_frac = 873813, },
67
{ .freq = 40000, .xf = 14, .wb_int = 45, .wb_frac = 0, },
69
#define SSB_PMU0_DEFAULT_XTALFREQ 20000
71
static const struct pmu0_plltab_entry * pmu0_plltab_find_entry(u32 crystalfreq)
73
const struct pmu0_plltab_entry *e;
76
for (i = 0; i < ARRAY_SIZE(pmu0_plltab); i++) {
78
if (e->freq == crystalfreq)
85
/* Tune the PLL to the crystal speed. crystalfreq is in kHz. */
86
static void ssb_pmu0_pllinit_r0(struct ssb_chipcommon *cc,
89
struct ssb_bus *bus = cc->dev->bus;
90
const struct pmu0_plltab_entry *e = NULL;
91
u32 pmuctl, tmp, pllctl;
94
if ((bus->chip_id == 0x5354) && !crystalfreq) {
95
/* The 5354 crystal freq is 25MHz */
99
e = pmu0_plltab_find_entry(crystalfreq);
101
e = pmu0_plltab_find_entry(SSB_PMU0_DEFAULT_XTALFREQ);
103
crystalfreq = e->freq;
104
cc->pmu.crystalfreq = e->freq;
106
/* Check if the PLL already is programmed to this frequency. */
107
pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
108
if (((pmuctl & SSB_CHIPCO_PMU_CTL_XTALFREQ) >> SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) == e->xf) {
109
/* We're already there... */
113
ssb_printk(KERN_INFO PFX "Programming PLL to %u.%03u MHz\n",
114
(crystalfreq / 1000), (crystalfreq % 1000));
116
/* First turn the PLL off. */
117
switch (bus->chip_id) {
119
chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
120
~(1 << SSB_PMURES_4328_BB_PLL_PU));
121
chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
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~(1 << SSB_PMURES_4328_BB_PLL_PU));
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chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
126
~(1 << SSB_PMURES_5354_BB_PLL_PU));
127
chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
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~(1 << SSB_PMURES_5354_BB_PLL_PU));
133
for (i = 1500; i; i--) {
134
tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
135
if (!(tmp & SSB_CHIPCO_CLKCTLST_HAVEHT))
139
tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
140
if (tmp & SSB_CHIPCO_CLKCTLST_HAVEHT)
141
ssb_printk(KERN_EMERG PFX "Failed to turn the PLL off!\n");
143
/* Set PDIV in PLL control 0. */
144
pllctl = ssb_chipco_pll_read(cc, SSB_PMU0_PLLCTL0);
145
if (crystalfreq >= SSB_PMU0_PLLCTL0_PDIV_FREQ)
146
pllctl |= SSB_PMU0_PLLCTL0_PDIV_MSK;
148
pllctl &= ~SSB_PMU0_PLLCTL0_PDIV_MSK;
149
ssb_chipco_pll_write(cc, SSB_PMU0_PLLCTL0, pllctl);
151
/* Set WILD in PLL control 1. */
152
pllctl = ssb_chipco_pll_read(cc, SSB_PMU0_PLLCTL1);
153
pllctl &= ~SSB_PMU0_PLLCTL1_STOPMOD;
154
pllctl &= ~(SSB_PMU0_PLLCTL1_WILD_IMSK | SSB_PMU0_PLLCTL1_WILD_FMSK);
155
pllctl |= ((u32)e->wb_int << SSB_PMU0_PLLCTL1_WILD_IMSK_SHIFT) & SSB_PMU0_PLLCTL1_WILD_IMSK;
156
pllctl |= ((u32)e->wb_frac << SSB_PMU0_PLLCTL1_WILD_FMSK_SHIFT) & SSB_PMU0_PLLCTL1_WILD_FMSK;
158
pllctl |= SSB_PMU0_PLLCTL1_STOPMOD;
159
ssb_chipco_pll_write(cc, SSB_PMU0_PLLCTL1, pllctl);
161
/* Set WILD in PLL control 2. */
162
pllctl = ssb_chipco_pll_read(cc, SSB_PMU0_PLLCTL2);
163
pllctl &= ~SSB_PMU0_PLLCTL2_WILD_IMSKHI;
164
pllctl |= (((u32)e->wb_int >> 4) << SSB_PMU0_PLLCTL2_WILD_IMSKHI_SHIFT) & SSB_PMU0_PLLCTL2_WILD_IMSKHI;
165
ssb_chipco_pll_write(cc, SSB_PMU0_PLLCTL2, pllctl);
167
/* Set the crystalfrequency and the divisor. */
168
pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
169
pmuctl &= ~SSB_CHIPCO_PMU_CTL_ILP_DIV;
170
pmuctl |= (((crystalfreq + 127) / 128 - 1) << SSB_CHIPCO_PMU_CTL_ILP_DIV_SHIFT)
171
& SSB_CHIPCO_PMU_CTL_ILP_DIV;
172
pmuctl &= ~SSB_CHIPCO_PMU_CTL_XTALFREQ;
173
pmuctl |= ((u32)e->xf << SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) & SSB_CHIPCO_PMU_CTL_XTALFREQ;
174
chipco_write32(cc, SSB_CHIPCO_PMU_CTL, pmuctl);
177
struct pmu1_plltab_entry {
178
u16 freq; /* Crystal frequency in kHz.*/
179
u8 xf; /* Crystal frequency value for PMU control */
186
static const struct pmu1_plltab_entry pmu1_plltab[] = {
187
{ .freq = 12000, .xf = 1, .p1div = 3, .p2div = 22, .ndiv_int = 0x9, .ndiv_frac = 0xFFFFEF, },
188
{ .freq = 13000, .xf = 2, .p1div = 1, .p2div = 6, .ndiv_int = 0xb, .ndiv_frac = 0x483483, },
189
{ .freq = 14400, .xf = 3, .p1div = 1, .p2div = 10, .ndiv_int = 0xa, .ndiv_frac = 0x1C71C7, },
190
{ .freq = 15360, .xf = 4, .p1div = 1, .p2div = 5, .ndiv_int = 0xb, .ndiv_frac = 0x755555, },
191
{ .freq = 16200, .xf = 5, .p1div = 1, .p2div = 10, .ndiv_int = 0x5, .ndiv_frac = 0x6E9E06, },
192
{ .freq = 16800, .xf = 6, .p1div = 1, .p2div = 10, .ndiv_int = 0x5, .ndiv_frac = 0x3CF3CF, },
193
{ .freq = 19200, .xf = 7, .p1div = 1, .p2div = 9, .ndiv_int = 0x5, .ndiv_frac = 0x17B425, },
194
{ .freq = 19800, .xf = 8, .p1div = 1, .p2div = 11, .ndiv_int = 0x4, .ndiv_frac = 0xA57EB, },
195
{ .freq = 20000, .xf = 9, .p1div = 1, .p2div = 11, .ndiv_int = 0x4, .ndiv_frac = 0, },
196
{ .freq = 24000, .xf = 10, .p1div = 3, .p2div = 11, .ndiv_int = 0xa, .ndiv_frac = 0, },
197
{ .freq = 25000, .xf = 11, .p1div = 5, .p2div = 16, .ndiv_int = 0xb, .ndiv_frac = 0, },
198
{ .freq = 26000, .xf = 12, .p1div = 1, .p2div = 2, .ndiv_int = 0x10, .ndiv_frac = 0xEC4EC4, },
199
{ .freq = 30000, .xf = 13, .p1div = 3, .p2div = 8, .ndiv_int = 0xb, .ndiv_frac = 0, },
200
{ .freq = 38400, .xf = 14, .p1div = 1, .p2div = 5, .ndiv_int = 0x4, .ndiv_frac = 0x955555, },
201
{ .freq = 40000, .xf = 15, .p1div = 1, .p2div = 2, .ndiv_int = 0xb, .ndiv_frac = 0, },
204
#define SSB_PMU1_DEFAULT_XTALFREQ 15360
206
static const struct pmu1_plltab_entry * pmu1_plltab_find_entry(u32 crystalfreq)
208
const struct pmu1_plltab_entry *e;
211
for (i = 0; i < ARRAY_SIZE(pmu1_plltab); i++) {
213
if (e->freq == crystalfreq)
220
/* Tune the PLL to the crystal speed. crystalfreq is in kHz. */
221
static void ssb_pmu1_pllinit_r0(struct ssb_chipcommon *cc,
224
struct ssb_bus *bus = cc->dev->bus;
225
const struct pmu1_plltab_entry *e = NULL;
226
u32 buffer_strength = 0;
227
u32 tmp, pllctl, pmuctl;
230
if (bus->chip_id == 0x4312) {
231
/* We do not touch the BCM4312 PLL and assume
232
* the default crystal settings work out-of-the-box. */
233
cc->pmu.crystalfreq = 20000;
238
e = pmu1_plltab_find_entry(crystalfreq);
240
e = pmu1_plltab_find_entry(SSB_PMU1_DEFAULT_XTALFREQ);
242
crystalfreq = e->freq;
243
cc->pmu.crystalfreq = e->freq;
245
/* Check if the PLL already is programmed to this frequency. */
246
pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
247
if (((pmuctl & SSB_CHIPCO_PMU_CTL_XTALFREQ) >> SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) == e->xf) {
248
/* We're already there... */
252
ssb_printk(KERN_INFO PFX "Programming PLL to %u.%03u MHz\n",
253
(crystalfreq / 1000), (crystalfreq % 1000));
255
/* First turn the PLL off. */
256
switch (bus->chip_id) {
258
chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK,
259
~((1 << SSB_PMURES_4325_BBPLL_PWRSW_PU) |
260
(1 << SSB_PMURES_4325_HT_AVAIL)));
261
chipco_mask32(cc, SSB_CHIPCO_PMU_MAXRES_MSK,
262
~((1 << SSB_PMURES_4325_BBPLL_PWRSW_PU) |
263
(1 << SSB_PMURES_4325_HT_AVAIL)));
264
/* Adjust the BBPLL to 2 on all channels later. */
265
buffer_strength = 0x222222;
270
for (i = 1500; i; i--) {
271
tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
272
if (!(tmp & SSB_CHIPCO_CLKCTLST_HAVEHT))
276
tmp = chipco_read32(cc, SSB_CHIPCO_CLKCTLST);
277
if (tmp & SSB_CHIPCO_CLKCTLST_HAVEHT)
278
ssb_printk(KERN_EMERG PFX "Failed to turn the PLL off!\n");
280
/* Set p1div and p2div. */
281
pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL0);
282
pllctl &= ~(SSB_PMU1_PLLCTL0_P1DIV | SSB_PMU1_PLLCTL0_P2DIV);
283
pllctl |= ((u32)e->p1div << SSB_PMU1_PLLCTL0_P1DIV_SHIFT) & SSB_PMU1_PLLCTL0_P1DIV;
284
pllctl |= ((u32)e->p2div << SSB_PMU1_PLLCTL0_P2DIV_SHIFT) & SSB_PMU1_PLLCTL0_P2DIV;
285
ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL0, pllctl);
287
/* Set ndiv int and ndiv mode */
288
pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL2);
289
pllctl &= ~(SSB_PMU1_PLLCTL2_NDIVINT | SSB_PMU1_PLLCTL2_NDIVMODE);
290
pllctl |= ((u32)e->ndiv_int << SSB_PMU1_PLLCTL2_NDIVINT_SHIFT) & SSB_PMU1_PLLCTL2_NDIVINT;
291
pllctl |= (1 << SSB_PMU1_PLLCTL2_NDIVMODE_SHIFT) & SSB_PMU1_PLLCTL2_NDIVMODE;
292
ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL2, pllctl);
295
pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL3);
296
pllctl &= ~SSB_PMU1_PLLCTL3_NDIVFRAC;
297
pllctl |= ((u32)e->ndiv_frac << SSB_PMU1_PLLCTL3_NDIVFRAC_SHIFT) & SSB_PMU1_PLLCTL3_NDIVFRAC;
298
ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL3, pllctl);
300
/* Change the drive strength, if required. */
301
if (buffer_strength) {
302
pllctl = ssb_chipco_pll_read(cc, SSB_PMU1_PLLCTL5);
303
pllctl &= ~SSB_PMU1_PLLCTL5_CLKDRV;
304
pllctl |= (buffer_strength << SSB_PMU1_PLLCTL5_CLKDRV_SHIFT) & SSB_PMU1_PLLCTL5_CLKDRV;
305
ssb_chipco_pll_write(cc, SSB_PMU1_PLLCTL5, pllctl);
308
/* Tune the crystalfreq and the divisor. */
309
pmuctl = chipco_read32(cc, SSB_CHIPCO_PMU_CTL);
310
pmuctl &= ~(SSB_CHIPCO_PMU_CTL_ILP_DIV | SSB_CHIPCO_PMU_CTL_XTALFREQ);
311
pmuctl |= ((((u32)e->freq + 127) / 128 - 1) << SSB_CHIPCO_PMU_CTL_ILP_DIV_SHIFT)
312
& SSB_CHIPCO_PMU_CTL_ILP_DIV;
313
pmuctl |= ((u32)e->xf << SSB_CHIPCO_PMU_CTL_XTALFREQ_SHIFT) & SSB_CHIPCO_PMU_CTL_XTALFREQ;
314
chipco_write32(cc, SSB_CHIPCO_PMU_CTL, pmuctl);
317
static void ssb_pmu_pll_init(struct ssb_chipcommon *cc)
319
struct ssb_bus *bus = cc->dev->bus;
320
u32 crystalfreq = 0; /* in kHz. 0 = keep default freq. */
322
if (bus->bustype == SSB_BUSTYPE_SSB) {
323
/* TODO: The user may override the crystal frequency. */
326
switch (bus->chip_id) {
329
ssb_pmu1_pllinit_r0(cc, crystalfreq);
333
ssb_pmu0_pllinit_r0(cc, crystalfreq);
336
ssb_printk(KERN_ERR PFX
337
"ERROR: PLL init unknown for device %04X\n",
342
struct pmu_res_updown_tab_entry {
343
u8 resource; /* The resource number */
344
u16 updown; /* The updown value */
347
enum pmu_res_depend_tab_task {
353
struct pmu_res_depend_tab_entry {
354
u8 resource; /* The resource number */
355
u8 task; /* SET | ADD | REMOVE */
356
u32 depend; /* The depend mask */
359
static const struct pmu_res_updown_tab_entry pmu_res_updown_tab_4328a0[] = {
360
{ .resource = SSB_PMURES_4328_EXT_SWITCHER_PWM, .updown = 0x0101, },
361
{ .resource = SSB_PMURES_4328_BB_SWITCHER_PWM, .updown = 0x1F01, },
362
{ .resource = SSB_PMURES_4328_BB_SWITCHER_BURST, .updown = 0x010F, },
363
{ .resource = SSB_PMURES_4328_BB_EXT_SWITCHER_BURST, .updown = 0x0101, },
364
{ .resource = SSB_PMURES_4328_ILP_REQUEST, .updown = 0x0202, },
365
{ .resource = SSB_PMURES_4328_RADIO_SWITCHER_PWM, .updown = 0x0F01, },
366
{ .resource = SSB_PMURES_4328_RADIO_SWITCHER_BURST, .updown = 0x0F01, },
367
{ .resource = SSB_PMURES_4328_ROM_SWITCH, .updown = 0x0101, },
368
{ .resource = SSB_PMURES_4328_PA_REF_LDO, .updown = 0x0F01, },
369
{ .resource = SSB_PMURES_4328_RADIO_LDO, .updown = 0x0F01, },
370
{ .resource = SSB_PMURES_4328_AFE_LDO, .updown = 0x0F01, },
371
{ .resource = SSB_PMURES_4328_PLL_LDO, .updown = 0x0F01, },
372
{ .resource = SSB_PMURES_4328_BG_FILTBYP, .updown = 0x0101, },
373
{ .resource = SSB_PMURES_4328_TX_FILTBYP, .updown = 0x0101, },
374
{ .resource = SSB_PMURES_4328_RX_FILTBYP, .updown = 0x0101, },
375
{ .resource = SSB_PMURES_4328_XTAL_PU, .updown = 0x0101, },
376
{ .resource = SSB_PMURES_4328_XTAL_EN, .updown = 0xA001, },
377
{ .resource = SSB_PMURES_4328_BB_PLL_FILTBYP, .updown = 0x0101, },
378
{ .resource = SSB_PMURES_4328_RF_PLL_FILTBYP, .updown = 0x0101, },
379
{ .resource = SSB_PMURES_4328_BB_PLL_PU, .updown = 0x0701, },
382
static const struct pmu_res_depend_tab_entry pmu_res_depend_tab_4328a0[] = {
384
/* Adjust ILP Request to avoid forcing EXT/BB into burst mode. */
385
.resource = SSB_PMURES_4328_ILP_REQUEST,
386
.task = PMU_RES_DEP_SET,
387
.depend = ((1 << SSB_PMURES_4328_EXT_SWITCHER_PWM) |
388
(1 << SSB_PMURES_4328_BB_SWITCHER_PWM)),
392
static const struct pmu_res_updown_tab_entry pmu_res_updown_tab_4325a0[] = {
393
{ .resource = SSB_PMURES_4325_XTAL_PU, .updown = 0x1501, },
396
static const struct pmu_res_depend_tab_entry pmu_res_depend_tab_4325a0[] = {
398
/* Adjust HT-Available dependencies. */
399
.resource = SSB_PMURES_4325_HT_AVAIL,
400
.task = PMU_RES_DEP_ADD,
401
.depend = ((1 << SSB_PMURES_4325_RX_PWRSW_PU) |
402
(1 << SSB_PMURES_4325_TX_PWRSW_PU) |
403
(1 << SSB_PMURES_4325_LOGEN_PWRSW_PU) |
404
(1 << SSB_PMURES_4325_AFE_PWRSW_PU)),
408
static void ssb_pmu_resources_init(struct ssb_chipcommon *cc)
410
struct ssb_bus *bus = cc->dev->bus;
411
u32 min_msk = 0, max_msk = 0;
413
const struct pmu_res_updown_tab_entry *updown_tab = NULL;
414
unsigned int updown_tab_size;
415
const struct pmu_res_depend_tab_entry *depend_tab = NULL;
416
unsigned int depend_tab_size;
418
switch (bus->chip_id) {
420
/* We keep the default settings:
426
/* Power OTP down later. */
427
min_msk = (1 << SSB_PMURES_4325_CBUCK_BURST) |
428
(1 << SSB_PMURES_4325_LNLDO2_PU);
429
if (chipco_read32(cc, SSB_CHIPCO_CHIPSTAT) &
430
SSB_CHIPCO_CHST_4325_PMUTOP_2B)
431
min_msk |= (1 << SSB_PMURES_4325_CLDO_CBUCK_BURST);
432
/* The PLL may turn on, if it decides so. */
434
updown_tab = pmu_res_updown_tab_4325a0;
435
updown_tab_size = ARRAY_SIZE(pmu_res_updown_tab_4325a0);
436
depend_tab = pmu_res_depend_tab_4325a0;
437
depend_tab_size = ARRAY_SIZE(pmu_res_depend_tab_4325a0);
440
min_msk = (1 << SSB_PMURES_4328_EXT_SWITCHER_PWM) |
441
(1 << SSB_PMURES_4328_BB_SWITCHER_PWM) |
442
(1 << SSB_PMURES_4328_XTAL_EN);
443
/* The PLL may turn on, if it decides so. */
445
updown_tab = pmu_res_updown_tab_4328a0;
446
updown_tab_size = ARRAY_SIZE(pmu_res_updown_tab_4328a0);
447
depend_tab = pmu_res_depend_tab_4328a0;
448
depend_tab_size = ARRAY_SIZE(pmu_res_depend_tab_4328a0);
451
/* The PLL may turn on, if it decides so. */
455
ssb_printk(KERN_ERR PFX
456
"ERROR: PMU resource config unknown for device %04X\n",
461
for (i = 0; i < updown_tab_size; i++) {
462
chipco_write32(cc, SSB_CHIPCO_PMU_RES_TABSEL,
463
updown_tab[i].resource);
464
chipco_write32(cc, SSB_CHIPCO_PMU_RES_UPDNTM,
465
updown_tab[i].updown);
469
for (i = 0; i < depend_tab_size; i++) {
470
chipco_write32(cc, SSB_CHIPCO_PMU_RES_TABSEL,
471
depend_tab[i].resource);
472
switch (depend_tab[i].task) {
473
case PMU_RES_DEP_SET:
474
chipco_write32(cc, SSB_CHIPCO_PMU_RES_DEPMSK,
475
depend_tab[i].depend);
477
case PMU_RES_DEP_ADD:
478
chipco_set32(cc, SSB_CHIPCO_PMU_RES_DEPMSK,
479
depend_tab[i].depend);
481
case PMU_RES_DEP_REMOVE:
482
chipco_mask32(cc, SSB_CHIPCO_PMU_RES_DEPMSK,
483
~(depend_tab[i].depend));
491
/* Set the resource masks. */
493
chipco_write32(cc, SSB_CHIPCO_PMU_MINRES_MSK, min_msk);
495
chipco_write32(cc, SSB_CHIPCO_PMU_MAXRES_MSK, max_msk);
498
void ssb_pmu_init(struct ssb_chipcommon *cc)
500
struct ssb_bus *bus = cc->dev->bus;
503
if (!(cc->capabilities & SSB_CHIPCO_CAP_PMU))
506
pmucap = chipco_read32(cc, SSB_CHIPCO_PMU_CAP);
507
cc->pmu.rev = (pmucap & SSB_CHIPCO_PMU_CAP_REVISION);
509
ssb_dprintk(KERN_DEBUG PFX "Found rev %u PMU (capabilities 0x%08X)\n",
510
cc->pmu.rev, pmucap);
512
if (cc->pmu.rev >= 1) {
513
if ((bus->chip_id == 0x4325) && (bus->chip_rev < 2)) {
514
chipco_mask32(cc, SSB_CHIPCO_PMU_CTL,
515
~SSB_CHIPCO_PMU_CTL_NOILPONW);
517
chipco_set32(cc, SSB_CHIPCO_PMU_CTL,
518
SSB_CHIPCO_PMU_CTL_NOILPONW);
521
ssb_pmu_pll_init(cc);
522
ssb_pmu_resources_init(cc);
525
void ssb_pmu_set_ldo_voltage(struct ssb_chipcommon *cc,
526
enum ssb_pmu_ldo_volt_id id, u32 voltage)
528
struct ssb_bus *bus = cc->dev->bus;
529
u32 addr, shift, mask;
531
switch (bus->chip_id) {
561
if (SSB_WARN_ON(id != LDO_PAREF))
571
ssb_chipco_regctl_maskset(cc, addr, ~(mask << shift),
572
(voltage & mask) << shift);
575
void ssb_pmu_set_ldo_paref(struct ssb_chipcommon *cc, bool on)
577
struct ssb_bus *bus = cc->dev->bus;
580
switch (bus->chip_id) {
582
ldo = SSB_PMURES_4312_PA_REF_LDO;
585
ldo = SSB_PMURES_4328_PA_REF_LDO;
588
ldo = SSB_PMURES_5354_PA_REF_LDO;
595
chipco_set32(cc, SSB_CHIPCO_PMU_MINRES_MSK, 1 << ldo);
597
chipco_mask32(cc, SSB_CHIPCO_PMU_MINRES_MSK, ~(1 << ldo));
598
chipco_read32(cc, SSB_CHIPCO_PMU_MINRES_MSK); //SPEC FIXME found via mmiotrace - dummy read?
601
EXPORT_SYMBOL(ssb_pmu_set_ldo_voltage);
602
EXPORT_SYMBOL(ssb_pmu_set_ldo_paref);