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Rafał Miłecki8369ae32011-05-09 18:56:46 +02001/*
2 * Broadcom specific AMBA
3 * ChipCommon Power Management Unit driver
4 *
Michael Büscheb032b92011-07-04 20:50:05 +02005 * Copyright 2009, Michael Buesch <m@bues.ch>
Hauke Mehrtensc586e102012-06-30 01:44:44 +02006 * Copyright 2007, 2011, Broadcom Corporation
7 * Copyright 2011, 2012, Hauke Mehrtens <hauke@hauke-m.de>
Rafał Miłecki8369ae32011-05-09 18:56:46 +02008 *
9 * Licensed under the GNU/GPL. See COPYING for details.
10 */
11
12#include "bcma_private.h"
Paul Gortmaker44a8e372011-07-27 21:21:04 -040013#include <linux/export.h>
Rafał Miłecki8369ae32011-05-09 18:56:46 +020014#include <linux/bcma/bcma.h>
15
Rafał Miłecki8d4b9e32012-11-12 13:03:20 +010016u32 bcma_chipco_pll_read(struct bcma_drv_cc *cc, u32 offset)
Hauke Mehrtens908debc2011-07-23 01:20:11 +020017{
18 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
19 bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR);
20 return bcma_cc_read32(cc, BCMA_CC_PLLCTL_DATA);
21}
Rafał Miłecki8d4b9e32012-11-12 13:03:20 +010022EXPORT_SYMBOL_GPL(bcma_chipco_pll_read);
Hauke Mehrtens908debc2011-07-23 01:20:11 +020023
Rafał Miłecki3861b2c2011-09-16 12:33:58 +020024void bcma_chipco_pll_write(struct bcma_drv_cc *cc, u32 offset, u32 value)
Rafał Miłecki8369ae32011-05-09 18:56:46 +020025{
Rafał Miłecki3861b2c2011-09-16 12:33:58 +020026 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
27 bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR);
28 bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, value);
29}
30EXPORT_SYMBOL_GPL(bcma_chipco_pll_write);
Rafał Miłecki8369ae32011-05-09 18:56:46 +020031
Rafał Miłecki3861b2c2011-09-16 12:33:58 +020032void bcma_chipco_pll_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
33 u32 set)
34{
35 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
36 bcma_cc_read32(cc, BCMA_CC_PLLCTL_ADDR);
37 bcma_cc_maskset32(cc, BCMA_CC_PLLCTL_DATA, mask, set);
38}
39EXPORT_SYMBOL_GPL(bcma_chipco_pll_maskset);
40
41void bcma_chipco_chipctl_maskset(struct bcma_drv_cc *cc,
42 u32 offset, u32 mask, u32 set)
43{
Rafał Miłecki8369ae32011-05-09 18:56:46 +020044 bcma_cc_write32(cc, BCMA_CC_CHIPCTL_ADDR, offset);
45 bcma_cc_read32(cc, BCMA_CC_CHIPCTL_ADDR);
Rafał Miłecki3861b2c2011-09-16 12:33:58 +020046 bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL_DATA, mask, set);
Rafał Miłecki8369ae32011-05-09 18:56:46 +020047}
Rafał Miłecki3861b2c2011-09-16 12:33:58 +020048EXPORT_SYMBOL_GPL(bcma_chipco_chipctl_maskset);
49
50void bcma_chipco_regctl_maskset(struct bcma_drv_cc *cc, u32 offset, u32 mask,
51 u32 set)
52{
53 bcma_cc_write32(cc, BCMA_CC_REGCTL_ADDR, offset);
54 bcma_cc_read32(cc, BCMA_CC_REGCTL_ADDR);
55 bcma_cc_maskset32(cc, BCMA_CC_REGCTL_DATA, mask, set);
56}
57EXPORT_SYMBOL_GPL(bcma_chipco_regctl_maskset);
Rafał Miłecki8369ae32011-05-09 18:56:46 +020058
Rafał Miłecki8369ae32011-05-09 18:56:46 +020059static void bcma_pmu_resources_init(struct bcma_drv_cc *cc)
60{
61 struct bcma_bus *bus = cc->core->bus;
62 u32 min_msk = 0, max_msk = 0;
63
64 switch (bus->chipinfo.id) {
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +020065 case BCMA_CHIP_ID_BCM4313:
Rafał Miłecki8369ae32011-05-09 18:56:46 +020066 min_msk = 0x200D;
67 max_msk = 0xFFFF;
68 break;
Rafał Miłecki8369ae32011-05-09 18:56:46 +020069 default:
Rafał Miłecki3d9d8af2012-07-05 22:07:32 +020070 bcma_debug(bus, "PMU resource config unknown or not needed for device 0x%04X\n",
71 bus->chipinfo.id);
Rafał Miłecki8369ae32011-05-09 18:56:46 +020072 }
73
74 /* Set the resource masks. */
75 if (min_msk)
76 bcma_cc_write32(cc, BCMA_CC_PMU_MINRES_MSK, min_msk);
77 if (max_msk)
78 bcma_cc_write32(cc, BCMA_CC_PMU_MAXRES_MSK, max_msk);
Hauke Mehrtens4795f092012-06-30 01:44:45 +020079
Rafał Miłecki1fd41a62012-09-25 10:17:22 +020080 /*
81 * Add some delay; allow resources to come up and settle.
82 * Delay is required for SoC (early init).
83 */
Hauke Mehrtens4795f092012-06-30 01:44:45 +020084 mdelay(2);
Rafał Miłecki8369ae32011-05-09 18:56:46 +020085}
86
Rafał Miłecki984e5be2011-08-11 23:46:44 +020087/* Disable to allow reading SPROM. Don't know the adventages of enabling it. */
88void bcma_chipco_bcm4331_ext_pa_lines_ctl(struct bcma_drv_cc *cc, bool enable)
89{
90 struct bcma_bus *bus = cc->core->bus;
91 u32 val;
92
93 val = bcma_cc_read32(cc, BCMA_CC_CHIPCTL);
94 if (enable) {
95 val |= BCMA_CHIPCTL_4331_EXTPA_EN;
96 if (bus->chipinfo.pkg == 9 || bus->chipinfo.pkg == 11)
97 val |= BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5;
Hauke Mehrtens00eeedc2012-06-30 01:44:37 +020098 else if (bus->chipinfo.rev > 0)
99 val |= BCMA_CHIPCTL_4331_EXTPA_EN2;
Rafał Miłecki984e5be2011-08-11 23:46:44 +0200100 } else {
101 val &= ~BCMA_CHIPCTL_4331_EXTPA_EN;
Hauke Mehrtens00eeedc2012-06-30 01:44:37 +0200102 val &= ~BCMA_CHIPCTL_4331_EXTPA_EN2;
Rafał Miłecki984e5be2011-08-11 23:46:44 +0200103 val &= ~BCMA_CHIPCTL_4331_EXTPA_ON_GPIO2_5;
104 }
105 bcma_cc_write32(cc, BCMA_CC_CHIPCTL, val);
106}
107
Hauke Mehrtens94f34572012-08-05 16:54:41 +0200108static void bcma_pmu_workarounds(struct bcma_drv_cc *cc)
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200109{
110 struct bcma_bus *bus = cc->core->bus;
111
112 switch (bus->chipinfo.id) {
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200113 case BCMA_CHIP_ID_BCM4313:
Hauke Mehrtensb9562542012-06-30 01:44:41 +0200114 /* enable 12 mA drive strenth for 4313 and set chipControl
115 register bit 1 */
116 bcma_chipco_chipctl_maskset(cc, 0,
Hauke Mehrtens1f03bf02012-07-25 23:08:54 +0200117 ~BCMA_CCTRL_4313_12MA_LED_DRIVE,
Hauke Mehrtensb9562542012-06-30 01:44:41 +0200118 BCMA_CCTRL_4313_12MA_LED_DRIVE);
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200119 break;
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200120 case BCMA_CHIP_ID_BCM4331:
121 case BCMA_CHIP_ID_BCM43431:
Seth Forshee69aaedd2012-06-01 09:13:17 -0500122 /* Ext PA lines must be enabled for tx on BCM4331 */
123 bcma_chipco_bcm4331_ext_pa_lines_ctl(cc, true);
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200124 break;
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200125 case BCMA_CHIP_ID_BCM43224:
Hauke Mehrtensb9562542012-06-30 01:44:41 +0200126 case BCMA_CHIP_ID_BCM43421:
127 /* enable 12 mA drive strenth for 43224 and set chipControl
128 register bit 15 */
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200129 if (bus->chipinfo.rev == 0) {
Hauke Mehrtensb9562542012-06-30 01:44:41 +0200130 bcma_cc_maskset32(cc, BCMA_CC_CHIPCTL,
Hauke Mehrtens1f03bf02012-07-25 23:08:54 +0200131 ~BCMA_CCTRL_43224_GPIO_TOGGLE,
Hauke Mehrtensb9562542012-06-30 01:44:41 +0200132 BCMA_CCTRL_43224_GPIO_TOGGLE);
133 bcma_chipco_chipctl_maskset(cc, 0,
Hauke Mehrtens1f03bf02012-07-25 23:08:54 +0200134 ~BCMA_CCTRL_43224A0_12MA_LED_DRIVE,
Hauke Mehrtensb9562542012-06-30 01:44:41 +0200135 BCMA_CCTRL_43224A0_12MA_LED_DRIVE);
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200136 } else {
Hauke Mehrtensb9562542012-06-30 01:44:41 +0200137 bcma_chipco_chipctl_maskset(cc, 0,
Hauke Mehrtens1f03bf02012-07-25 23:08:54 +0200138 ~BCMA_CCTRL_43224B0_12MA_LED_DRIVE,
Hauke Mehrtensb9562542012-06-30 01:44:41 +0200139 BCMA_CCTRL_43224B0_12MA_LED_DRIVE);
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200140 }
141 break;
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200142 default:
Rafał Miłecki3d9d8af2012-07-05 22:07:32 +0200143 bcma_debug(bus, "Workarounds unknown or not needed for device 0x%04X\n",
144 bus->chipinfo.id);
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200145 }
146}
147
Hauke Mehrtens49655bb2012-09-29 20:29:49 +0200148void bcma_pmu_early_init(struct bcma_drv_cc *cc)
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200149{
150 u32 pmucap;
151
152 pmucap = bcma_cc_read32(cc, BCMA_CC_PMU_CAP);
153 cc->pmu.rev = (pmucap & BCMA_CC_PMU_CAP_REVISION);
154
Rafał Miłecki3d9d8af2012-07-05 22:07:32 +0200155 bcma_debug(cc->core->bus, "Found rev %u PMU (capabilities 0x%08X)\n",
156 cc->pmu.rev, pmucap);
Hauke Mehrtens49655bb2012-09-29 20:29:49 +0200157}
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200158
Hauke Mehrtens49655bb2012-09-29 20:29:49 +0200159void bcma_pmu_init(struct bcma_drv_cc *cc)
160{
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200161 if (cc->pmu.rev == 1)
162 bcma_cc_mask32(cc, BCMA_CC_PMU_CTL,
163 ~BCMA_CC_PMU_CTL_NOILPONW);
164 else
165 bcma_cc_set32(cc, BCMA_CC_PMU_CTL,
166 BCMA_CC_PMU_CTL_NOILPONW);
167
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200168 bcma_pmu_resources_init(cc);
Rafał Miłecki8369ae32011-05-09 18:56:46 +0200169 bcma_pmu_workarounds(cc);
170}
Hauke Mehrtense3afe0e2011-07-23 01:20:10 +0200171
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100172u32 bcma_pmu_get_alp_clock(struct bcma_drv_cc *cc)
Hauke Mehrtense3afe0e2011-07-23 01:20:10 +0200173{
174 struct bcma_bus *bus = cc->core->bus;
175
176 switch (bus->chipinfo.id) {
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200177 case BCMA_CHIP_ID_BCM4716:
178 case BCMA_CHIP_ID_BCM4748:
179 case BCMA_CHIP_ID_BCM47162:
180 case BCMA_CHIP_ID_BCM4313:
181 case BCMA_CHIP_ID_BCM5357:
182 case BCMA_CHIP_ID_BCM4749:
183 case BCMA_CHIP_ID_BCM53572:
Hauke Mehrtense3afe0e2011-07-23 01:20:10 +0200184 /* always 20Mhz */
185 return 20000 * 1000;
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200186 case BCMA_CHIP_ID_BCM5356:
187 case BCMA_CHIP_ID_BCM4706:
Hauke Mehrtense3afe0e2011-07-23 01:20:10 +0200188 /* always 25Mhz */
189 return 25000 * 1000;
190 default:
Rafał Miłecki3d9d8af2012-07-05 22:07:32 +0200191 bcma_warn(bus, "No ALP clock specified for %04X device, pmu rev. %d, using default %d Hz\n",
192 bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_ALP_CLOCK);
Hauke Mehrtense3afe0e2011-07-23 01:20:10 +0200193 }
194 return BCMA_CC_PMU_ALP_CLOCK;
195}
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200196
197/* Find the output of the "m" pll divider given pll controls that start with
198 * pllreg "pll0" i.e. 12 for main 6 for phy, 0 for misc.
199 */
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100200static u32 bcma_pmu_pll_clock(struct bcma_drv_cc *cc, u32 pll0, u32 m)
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200201{
202 u32 tmp, div, ndiv, p1, p2, fc;
203 struct bcma_bus *bus = cc->core->bus;
204
205 BUG_ON((pll0 & 3) || (pll0 > BCMA_CC_PMU4716_MAINPLL_PLL0));
206
207 BUG_ON(!m || m > 4);
208
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200209 if (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
210 bus->chipinfo.id == BCMA_CHIP_ID_BCM4749) {
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200211 /* Detect failure in clock setting */
212 tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
213 if (tmp & 0x40000)
214 return 133 * 1000000;
215 }
216
217 tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_P1P2_OFF);
218 p1 = (tmp & BCMA_CC_PPL_P1_MASK) >> BCMA_CC_PPL_P1_SHIFT;
219 p2 = (tmp & BCMA_CC_PPL_P2_MASK) >> BCMA_CC_PPL_P2_SHIFT;
220
221 tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_M14_OFF);
222 div = (tmp >> ((m - 1) * BCMA_CC_PPL_MDIV_WIDTH)) &
223 BCMA_CC_PPL_MDIV_MASK;
224
225 tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PPL_NM5_OFF);
226 ndiv = (tmp & BCMA_CC_PPL_NDIV_MASK) >> BCMA_CC_PPL_NDIV_SHIFT;
227
228 /* Do calculation in Mhz */
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100229 fc = bcma_pmu_get_alp_clock(cc) / 1000000;
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200230 fc = (p1 * ndiv * fc) / p2;
231
232 /* Return clock in Hertz */
233 return (fc / div) * 1000000;
234}
235
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100236static u32 bcma_pmu_pll_clock_bcm4706(struct bcma_drv_cc *cc, u32 pll0, u32 m)
Hauke Mehrtens650cef382012-07-09 22:03:10 +0200237{
238 u32 tmp, ndiv, p1div, p2div;
239 u32 clock;
240
241 BUG_ON(!m || m > 4);
242
243 /* Get N, P1 and P2 dividers to determine CPU clock */
244 tmp = bcma_chipco_pll_read(cc, pll0 + BCMA_CC_PMU6_4706_PROCPLL_OFF);
245 ndiv = (tmp & BCMA_CC_PMU6_4706_PROC_NDIV_INT_MASK)
246 >> BCMA_CC_PMU6_4706_PROC_NDIV_INT_SHIFT;
247 p1div = (tmp & BCMA_CC_PMU6_4706_PROC_P1DIV_MASK)
248 >> BCMA_CC_PMU6_4706_PROC_P1DIV_SHIFT;
249 p2div = (tmp & BCMA_CC_PMU6_4706_PROC_P2DIV_MASK)
250 >> BCMA_CC_PMU6_4706_PROC_P2DIV_SHIFT;
251
252 tmp = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
253 if (tmp & BCMA_CC_CHIPST_4706_PKG_OPTION)
254 /* Low cost bonding: Fixed reference clock 25MHz and m = 4 */
255 clock = (25000000 / 4) * ndiv * p2div / p1div;
256 else
257 /* Fixed reference clock 25MHz and m = 2 */
258 clock = (25000000 / 2) * ndiv * p2div / p1div;
259
260 if (m == BCMA_CC_PMU5_MAINPLL_SSB)
261 clock = clock / 4;
262
263 return clock;
264}
265
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200266/* query bus clock frequency for PMU-enabled chipcommon */
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100267static u32 bcma_pmu_get_bus_clock(struct bcma_drv_cc *cc)
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200268{
269 struct bcma_bus *bus = cc->core->bus;
270
271 switch (bus->chipinfo.id) {
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200272 case BCMA_CHIP_ID_BCM4716:
273 case BCMA_CHIP_ID_BCM4748:
274 case BCMA_CHIP_ID_BCM47162:
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100275 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU4716_MAINPLL_PLL0,
276 BCMA_CC_PMU5_MAINPLL_SSB);
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200277 case BCMA_CHIP_ID_BCM5356:
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100278 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5356_MAINPLL_PLL0,
279 BCMA_CC_PMU5_MAINPLL_SSB);
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200280 case BCMA_CHIP_ID_BCM5357:
281 case BCMA_CHIP_ID_BCM4749:
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100282 return bcma_pmu_pll_clock(cc, BCMA_CC_PMU5357_MAINPLL_PLL0,
283 BCMA_CC_PMU5_MAINPLL_SSB);
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200284 case BCMA_CHIP_ID_BCM4706:
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100285 return bcma_pmu_pll_clock_bcm4706(cc,
286 BCMA_CC_PMU4706_MAINPLL_PLL0,
287 BCMA_CC_PMU5_MAINPLL_SSB);
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200288 case BCMA_CHIP_ID_BCM53572:
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200289 return 75000000;
290 default:
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100291 bcma_warn(bus, "No bus clock specified for %04X device, pmu rev. %d, using default %d Hz\n",
Rafał Miłecki3d9d8af2012-07-05 22:07:32 +0200292 bus->chipinfo.id, cc->pmu.rev, BCMA_CC_PMU_HT_CLOCK);
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200293 }
294 return BCMA_CC_PMU_HT_CLOCK;
295}
296
297/* query cpu clock frequency for PMU-enabled chipcommon */
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100298u32 bcma_pmu_get_cpu_clock(struct bcma_drv_cc *cc)
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200299{
300 struct bcma_bus *bus = cc->core->bus;
301
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200302 if (bus->chipinfo.id == BCMA_CHIP_ID_BCM53572)
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200303 return 300000000;
304
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100305 /* New PMUs can have different clock for bus and CPU */
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200306 if (cc->pmu.rev >= 5) {
307 u32 pll;
308 switch (bus->chipinfo.id) {
Hauke Mehrtens650cef382012-07-09 22:03:10 +0200309 case BCMA_CHIP_ID_BCM4706:
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100310 return bcma_pmu_pll_clock_bcm4706(cc,
Hauke Mehrtens650cef382012-07-09 22:03:10 +0200311 BCMA_CC_PMU4706_MAINPLL_PLL0,
312 BCMA_CC_PMU5_MAINPLL_CPU);
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200313 case BCMA_CHIP_ID_BCM5356:
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200314 pll = BCMA_CC_PMU5356_MAINPLL_PLL0;
315 break;
Hauke Mehrtens4b4f5be2012-06-30 01:44:38 +0200316 case BCMA_CHIP_ID_BCM5357:
317 case BCMA_CHIP_ID_BCM4749:
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200318 pll = BCMA_CC_PMU5357_MAINPLL_PLL0;
319 break;
320 default:
321 pll = BCMA_CC_PMU4716_MAINPLL_PLL0;
322 break;
323 }
324
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100325 return bcma_pmu_pll_clock(cc, pll, BCMA_CC_PMU5_MAINPLL_CPU);
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200326 }
327
Rafał Miłecki5b5ac412012-12-07 12:56:56 +0100328 /* On old PMUs CPU has the same clock as the bus */
329 return bcma_pmu_get_bus_clock(cc);
Hauke Mehrtens908debc2011-07-23 01:20:11 +0200330}
Hauke Mehrtensc586e102012-06-30 01:44:44 +0200331
332static void bcma_pmu_spuravoid_pll_write(struct bcma_drv_cc *cc, u32 offset,
333 u32 value)
334{
335 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR, offset);
336 bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, value);
337}
338
339void bcma_pmu_spuravoid_pllupdate(struct bcma_drv_cc *cc, int spuravoid)
340{
341 u32 tmp = 0;
342 u8 phypll_offset = 0;
343 u8 bcm5357_bcm43236_p1div[] = {0x1, 0x5, 0x5};
344 u8 bcm5357_bcm43236_ndiv[] = {0x30, 0xf6, 0xfc};
345 struct bcma_bus *bus = cc->core->bus;
346
347 switch (bus->chipinfo.id) {
348 case BCMA_CHIP_ID_BCM5357:
349 case BCMA_CHIP_ID_BCM4749:
350 case BCMA_CHIP_ID_BCM53572:
351 /* 5357[ab]0, 43236[ab]0, and 6362b0 */
352
353 /* BCM5357 needs to touch PLL1_PLLCTL[02],
354 so offset PLL0_PLLCTL[02] by 6 */
355 phypll_offset = (bus->chipinfo.id == BCMA_CHIP_ID_BCM5357 ||
356 bus->chipinfo.id == BCMA_CHIP_ID_BCM4749 ||
357 bus->chipinfo.id == BCMA_CHIP_ID_BCM53572) ? 6 : 0;
358
359 /* RMW only the P1 divider */
360 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR,
361 BCMA_CC_PMU_PLL_CTL0 + phypll_offset);
362 tmp = bcma_cc_read32(cc, BCMA_CC_PLLCTL_DATA);
363 tmp &= (~(BCMA_CC_PMU1_PLL0_PC0_P1DIV_MASK));
364 tmp |= (bcm5357_bcm43236_p1div[spuravoid] << BCMA_CC_PMU1_PLL0_PC0_P1DIV_SHIFT);
365 bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, tmp);
366
367 /* RMW only the int feedback divider */
368 bcma_cc_write32(cc, BCMA_CC_PLLCTL_ADDR,
369 BCMA_CC_PMU_PLL_CTL2 + phypll_offset);
370 tmp = bcma_cc_read32(cc, BCMA_CC_PLLCTL_DATA);
371 tmp &= ~(BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_MASK);
372 tmp |= (bcm5357_bcm43236_ndiv[spuravoid]) << BCMA_CC_PMU1_PLL0_PC2_NDIV_INT_SHIFT;
373 bcma_cc_write32(cc, BCMA_CC_PLLCTL_DATA, tmp);
374
375 tmp = 1 << 10;
376 break;
377
378 case BCMA_CHIP_ID_BCM4331:
379 case BCMA_CHIP_ID_BCM43431:
380 if (spuravoid == 2) {
381 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
382 0x11500014);
383 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
384 0x0FC00a08);
385 } else if (spuravoid == 1) {
386 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
387 0x11500014);
388 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
389 0x0F600a08);
390 } else {
391 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
392 0x11100014);
393 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
394 0x03000a08);
395 }
396 tmp = 1 << 10;
397 break;
398
399 case BCMA_CHIP_ID_BCM43224:
400 case BCMA_CHIP_ID_BCM43225:
401 case BCMA_CHIP_ID_BCM43421:
402 if (spuravoid == 1) {
403 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
404 0x11500010);
405 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
406 0x000C0C06);
407 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
408 0x0F600a08);
409 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
410 0x00000000);
411 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
412 0x2001E920);
413 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
414 0x88888815);
415 } else {
416 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
417 0x11100010);
418 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
419 0x000c0c06);
420 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
421 0x03000a08);
422 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
423 0x00000000);
424 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
425 0x200005c0);
426 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
427 0x88888815);
428 }
429 tmp = 1 << 10;
430 break;
431
432 case BCMA_CHIP_ID_BCM4716:
433 case BCMA_CHIP_ID_BCM4748:
434 case BCMA_CHIP_ID_BCM47162:
435 if (spuravoid == 1) {
436 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
437 0x11500060);
438 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
439 0x080C0C06);
440 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
441 0x0F600000);
442 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
443 0x00000000);
444 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
445 0x2001E924);
446 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
447 0x88888815);
448 } else {
449 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
450 0x11100060);
451 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
452 0x080c0c06);
453 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
454 0x03000000);
455 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
456 0x00000000);
457 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
458 0x200005c0);
459 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
460 0x88888815);
461 }
462
463 tmp = 3 << 9;
464 break;
465
466 case BCMA_CHIP_ID_BCM43227:
467 case BCMA_CHIP_ID_BCM43228:
468 case BCMA_CHIP_ID_BCM43428:
469 /* LCNXN */
470 /* PLL Settings for spur avoidance on/off mode,
471 no on2 support for 43228A0 */
472 if (spuravoid == 1) {
473 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
474 0x01100014);
475 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
476 0x040C0C06);
477 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
478 0x03140A08);
479 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
480 0x00333333);
481 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
482 0x202C2820);
483 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
484 0x88888815);
485 } else {
486 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL0,
487 0x11100014);
488 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL1,
489 0x040c0c06);
490 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL2,
491 0x03000a08);
492 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL3,
493 0x00000000);
494 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL4,
495 0x200005c0);
496 bcma_pmu_spuravoid_pll_write(cc, BCMA_CC_PMU_PLL_CTL5,
497 0x88888815);
498 }
499 tmp = 1 << 10;
500 break;
501 default:
Rafał Miłecki3d9d8af2012-07-05 22:07:32 +0200502 bcma_err(bus, "Unknown spuravoidance settings for chip 0x%04X, not changing PLL\n",
503 bus->chipinfo.id);
Hauke Mehrtensc586e102012-06-30 01:44:44 +0200504 break;
505 }
506
507 tmp |= bcma_cc_read32(cc, BCMA_CC_PMU_CTL);
508 bcma_cc_write32(cc, BCMA_CC_PMU_CTL, tmp);
509}
510EXPORT_SYMBOL_GPL(bcma_pmu_spuravoid_pllupdate);