2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 * File contents: support functions for PCI/PCIe
19 #include <linux/delay.h>
20 #include <linux/pci.h>
23 #include <chipcommon.h>
24 #include <brcmu_utils.h>
25 #include <brcm_hw_ids.h>
35 /* slow clock source mask */
36 #define SCC_SS_MASK 0x00000007
37 /* source of slow clock is LPO */
38 #define SCC_SS_LPO 0x00000000
39 /* source of slow clock is crystal */
40 #define SCC_SS_XTAL 0x00000001
41 /* source of slow clock is PCI */
42 #define SCC_SS_PCI 0x00000002
43 /* LPOFreqSel, 1: 160Khz, 0: 32KHz */
44 #define SCC_LF 0x00000200
45 /* LPOPowerDown, 1: LPO is disabled, 0: LPO is enabled */
46 #define SCC_LP 0x00000400
47 /* ForceSlowClk, 1: sb/cores running on slow clock, 0: power logic control */
48 #define SCC_FS 0x00000800
49 /* IgnorePllOffReq, 1/0:
50 * power logic ignores/honors PLL clock disable requests from core
52 #define SCC_IP 0x00001000
53 /* XtalControlEn, 1/0:
54 * power logic does/doesn't disable crystal when appropriate
56 #define SCC_XC 0x00002000
57 /* XtalPU (RO), 1/0: crystal running/disabled */
58 #define SCC_XP 0x00004000
59 /* ClockDivider (SlowClk = 1/(4+divisor)) */
60 #define SCC_CD_MASK 0xffff0000
61 #define SCC_CD_SHIFT 16
64 /* ILPen: Enable Idle Low Power */
65 #define SYCC_IE 0x00000001
66 /* ALPen: Enable Active Low Power */
67 #define SYCC_AE 0x00000002
69 #define SYCC_FP 0x00000004
70 /* Force ALP (or HT if ALPen is not set */
71 #define SYCC_AR 0x00000008
73 #define SYCC_HR 0x00000010
74 /* ClkDiv (ILP = 1/(4 * (divisor + 1)) */
75 #define SYCC_CD_MASK 0xffff0000
76 #define SYCC_CD_SHIFT 16
78 #define CST4329_SPROM_OTP_SEL_MASK 0x00000003
79 /* OTP is powered up, use def. CIS, no SPROM */
80 #define CST4329_DEFCIS_SEL 0
81 /* OTP is powered up, SPROM is present */
82 #define CST4329_SPROM_SEL 1
83 /* OTP is powered up, no SPROM */
84 #define CST4329_OTP_SEL 2
85 /* OTP is powered down, SPROM is present */
86 #define CST4329_OTP_PWRDN 3
88 #define CST4329_SPI_SDIO_MODE_MASK 0x00000004
89 #define CST4329_SPI_SDIO_MODE_SHIFT 2
91 /* 43224 chip-specific ChipControl register bits */
92 #define CCTRL43224_GPIO_TOGGLE 0x8000
93 /* 12 mA drive strength */
94 #define CCTRL_43224A0_12MA_LED_DRIVE 0x00F000F0
95 /* 12 mA drive strength for later 43224s */
96 #define CCTRL_43224B0_12MA_LED_DRIVE 0xF0
98 /* 43236 Chip specific ChipStatus register bits */
99 #define CST43236_SFLASH_MASK 0x00000040
100 #define CST43236_OTP_MASK 0x00000080
101 #define CST43236_HSIC_MASK 0x00000100 /* USB/HSIC */
102 #define CST43236_BP_CLK 0x00000200 /* 120/96Mbps */
103 #define CST43236_BOOT_MASK 0x00001800
104 #define CST43236_BOOT_SHIFT 11
105 #define CST43236_BOOT_FROM_SRAM 0 /* boot from SRAM, ARM in reset */
106 #define CST43236_BOOT_FROM_ROM 1 /* boot from ROM */
107 #define CST43236_BOOT_FROM_FLASH 2 /* boot from FLASH */
108 #define CST43236_BOOT_FROM_INVALID 3
110 /* 4331 chip-specific ChipControl register bits */
112 #define CCTRL4331_BT_COEXIST (1<<0)
113 /* 0 SECI is disabled (JTAG functional) */
114 #define CCTRL4331_SECI (1<<1)
116 #define CCTRL4331_EXT_LNA (1<<2)
117 /* sprom/gpio13-15 mux */
118 #define CCTRL4331_SPROM_GPIO13_15 (1<<3)
119 /* 0 ext pa disable, 1 ext pa enabled */
120 #define CCTRL4331_EXTPA_EN (1<<4)
121 /* set drive out GPIO_CLK on sprom_cs pin */
122 #define CCTRL4331_GPIOCLK_ON_SPROMCS (1<<5)
123 /* use sprom_cs pin as PCIE mdio interface */
124 #define CCTRL4331_PCIE_MDIO_ON_SPROMCS (1<<6)
125 /* aband extpa will be at gpio2/5 and sprom_dout */
126 #define CCTRL4331_EXTPA_ON_GPIO2_5 (1<<7)
127 /* override core control on pipe_AuxClkEnable */
128 #define CCTRL4331_OVR_PIPEAUXCLKEN (1<<8)
129 /* override core control on pipe_AuxPowerDown */
130 #define CCTRL4331_OVR_PIPEAUXPWRDOWN (1<<9)
131 /* pcie_auxclkenable */
132 #define CCTRL4331_PCIE_AUXCLKEN (1<<10)
133 /* pcie_pipe_pllpowerdown */
134 #define CCTRL4331_PCIE_PIPE_PLLDOWN (1<<11)
135 /* enable bt_shd0 at gpio4 */
136 #define CCTRL4331_BT_SHD0_ON_GPIO4 (1<<16)
137 /* enable bt_shd1 at gpio5 */
138 #define CCTRL4331_BT_SHD1_ON_GPIO5 (1<<17)
140 /* 4331 Chip specific ChipStatus register bits */
141 /* crystal frequency 20/40Mhz */
142 #define CST4331_XTAL_FREQ 0x00000001
143 #define CST4331_SPROM_PRESENT 0x00000002
144 #define CST4331_OTP_PRESENT 0x00000004
145 #define CST4331_LDO_RF 0x00000008
146 #define CST4331_LDO_PAR 0x00000010
148 /* 4319 chip-specific ChipStatus register bits */
149 #define CST4319_SPI_CPULESSUSB 0x00000001
150 #define CST4319_SPI_CLK_POL 0x00000002
151 #define CST4319_SPI_CLK_PH 0x00000008
152 /* gpio [7:6], SDIO CIS selection */
153 #define CST4319_SPROM_OTP_SEL_MASK 0x000000c0
154 #define CST4319_SPROM_OTP_SEL_SHIFT 6
155 /* use default CIS, OTP is powered up */
156 #define CST4319_DEFCIS_SEL 0x00000000
157 /* use SPROM, OTP is powered up */
158 #define CST4319_SPROM_SEL 0x00000040
159 /* use OTP, OTP is powered up */
160 #define CST4319_OTP_SEL 0x00000080
161 /* use SPROM, OTP is powered down */
162 #define CST4319_OTP_PWRDN 0x000000c0
163 /* gpio [8], sdio/usb mode */
164 #define CST4319_SDIO_USB_MODE 0x00000100
165 #define CST4319_REMAP_SEL_MASK 0x00000600
166 #define CST4319_ILPDIV_EN 0x00000800
167 #define CST4319_XTAL_PD_POL 0x00001000
168 #define CST4319_LPO_SEL 0x00002000
169 #define CST4319_RES_INIT_MODE 0x0000c000
170 /* PALDO is configured with external PNP */
171 #define CST4319_PALDO_EXTPNP 0x00010000
172 #define CST4319_CBUCK_MODE_MASK 0x00060000
173 #define CST4319_CBUCK_MODE_BURST 0x00020000
174 #define CST4319_CBUCK_MODE_LPBURST 0x00060000
175 #define CST4319_RCAL_VALID 0x01000000
176 #define CST4319_RCAL_VALUE_MASK 0x3e000000
177 #define CST4319_RCAL_VALUE_SHIFT 25
179 /* 4336 chip-specific ChipStatus register bits */
180 #define CST4336_SPI_MODE_MASK 0x00000001
181 #define CST4336_SPROM_PRESENT 0x00000002
182 #define CST4336_OTP_PRESENT 0x00000004
183 #define CST4336_ARMREMAP_0 0x00000008
184 #define CST4336_ILPDIV_EN_MASK 0x00000010
185 #define CST4336_ILPDIV_EN_SHIFT 4
186 #define CST4336_XTAL_PD_POL_MASK 0x00000020
187 #define CST4336_XTAL_PD_POL_SHIFT 5
188 #define CST4336_LPO_SEL_MASK 0x00000040
189 #define CST4336_LPO_SEL_SHIFT 6
190 #define CST4336_RES_INIT_MODE_MASK 0x00000180
191 #define CST4336_RES_INIT_MODE_SHIFT 7
192 #define CST4336_CBUCK_MODE_MASK 0x00000600
193 #define CST4336_CBUCK_MODE_SHIFT 9
195 /* 4313 chip-specific ChipStatus register bits */
196 #define CST4313_SPROM_PRESENT 1
197 #define CST4313_OTP_PRESENT 2
198 #define CST4313_SPROM_OTP_SEL_MASK 0x00000002
199 #define CST4313_SPROM_OTP_SEL_SHIFT 0
201 /* 4313 Chip specific ChipControl register bits */
202 /* 12 mA drive strengh for later 4313 */
203 #define CCTRL_4313_12MA_LED_DRIVE 0x00000007
205 /* Manufacturer Ids */
206 #define MFGID_ARM 0x43b
207 #define MFGID_BRCM 0x4bf
208 #define MFGID_MIPS 0x4a7
210 /* Enumeration ROM registers */
211 #define ER_EROMENTRY 0x000
212 #define ER_REMAPCONTROL 0xe00
213 #define ER_REMAPSELECT 0xe04
214 #define ER_MASTERSELECT 0xe10
215 #define ER_ITCR 0xf00
216 #define ER_ITIP 0xf04
226 #define ER_BAD 0xffffffff
228 /* EROM CompIdentA */
229 #define CIA_MFG_MASK 0xfff00000
230 #define CIA_MFG_SHIFT 20
231 #define CIA_CID_MASK 0x000fff00
232 #define CIA_CID_SHIFT 8
233 #define CIA_CCL_MASK 0x000000f0
234 #define CIA_CCL_SHIFT 4
236 /* EROM CompIdentB */
237 #define CIB_REV_MASK 0xff000000
238 #define CIB_REV_SHIFT 24
239 #define CIB_NSW_MASK 0x00f80000
240 #define CIB_NSW_SHIFT 19
241 #define CIB_NMW_MASK 0x0007c000
242 #define CIB_NMW_SHIFT 14
243 #define CIB_NSP_MASK 0x00003e00
244 #define CIB_NSP_SHIFT 9
245 #define CIB_NMP_MASK 0x000001f0
246 #define CIB_NMP_SHIFT 4
249 #define AD_ADDR_MASK 0xfffff000
250 #define AD_SP_MASK 0x00000f00
251 #define AD_SP_SHIFT 8
252 #define AD_ST_MASK 0x000000c0
253 #define AD_ST_SHIFT 6
254 #define AD_ST_SLAVE 0x00000000
255 #define AD_ST_BRIDGE 0x00000040
256 #define AD_ST_SWRAP 0x00000080
257 #define AD_ST_MWRAP 0x000000c0
258 #define AD_SZ_MASK 0x00000030
259 #define AD_SZ_SHIFT 4
260 #define AD_SZ_4K 0x00000000
261 #define AD_SZ_8K 0x00000010
262 #define AD_SZ_16K 0x00000020
263 #define AD_SZ_SZD 0x00000030
264 #define AD_AG32 0x00000008
265 #define AD_ADDR_ALIGN 0x00000fff
266 #define AD_SZ_BASE 0x00001000 /* 4KB */
269 #define SD_SZ_MASK 0xfffff000
270 #define SD_SG32 0x00000008
271 #define SD_SZ_ALIGN 0x00000fff
273 /* PCI config space bit 4 for 4306c0 slow clock source */
274 #define PCI_CFG_GPIO_SCS 0x10
275 /* PCI config space GPIO 14 for Xtal power-up */
276 #define PCI_CFG_GPIO_XTAL 0x40
277 /* PCI config space GPIO 15 for PLL power-down */
278 #define PCI_CFG_GPIO_PLL 0x80
280 /* power control defines */
281 #define PLL_DELAY 150 /* us pll on delay */
282 #define FREF_DELAY 200 /* us fref change delay */
283 #define XTAL_ON_DELAY 1000 /* us crystal power-on delay */
288 #define NOREV -1 /* Invalid rev */
290 /* GPIO Based LED powersave defines */
291 #define DEFAULT_GPIO_ONTIME 10 /* Default: 10% on */
292 #define DEFAULT_GPIO_OFFTIME 90 /* Default: 10% on */
294 /* When Srom support present, fields in sromcontrol */
295 #define SRC_START 0x80000000
296 #define SRC_BUSY 0x80000000
297 #define SRC_OPCODE 0x60000000
298 #define SRC_OP_READ 0x00000000
299 #define SRC_OP_WRITE 0x20000000
300 #define SRC_OP_WRDIS 0x40000000
301 #define SRC_OP_WREN 0x60000000
302 #define SRC_OTPSEL 0x00000010
303 #define SRC_LOCK 0x00000008
304 #define SRC_SIZE_MASK 0x00000006
305 #define SRC_SIZE_1K 0x00000000
306 #define SRC_SIZE_4K 0x00000002
307 #define SRC_SIZE_16K 0x00000004
308 #define SRC_SIZE_SHIFT 1
309 #define SRC_PRESENT 0x00000001
311 /* External PA enable mask */
312 #define GPIO_CTRL_EPA_EN_MASK 0x40
314 #define DEFAULT_GPIOTIMERVAL \
315 ((DEFAULT_GPIO_ONTIME << GPIO_ONTIME_SHIFT) | DEFAULT_GPIO_OFFTIME)
317 #define BADIDX (SI_MAXCORES + 1)
319 /* Newer chips can access PCI/PCIE and CC core without requiring to change
322 #define SI_FAST(si) (((si)->pub.buscoretype == PCIE_CORE_ID) || \
323 (((si)->pub.buscoretype == PCI_CORE_ID) && \
324 (si)->pub.buscorerev >= 13))
326 #define CCREGS_FAST(si) (((char __iomem *)((si)->curmap) + \
327 PCI_16KB0_CCREGS_OFFSET))
329 #define IS_SIM(chippkg) \
330 ((chippkg == HDLSIM_PKG_ID) || (chippkg == HWSIM_PKG_ID))
333 * Macros to disable/restore function core(D11, ENET, ILINE20, etc) interrupts
334 * before after core switching to avoid invalid register accesss inside ISR.
336 #define INTR_OFF(si, intr_val) \
337 if ((si)->intrsoff_fn && \
338 (si)->coreid[(si)->curidx] == (si)->dev_coreid) \
339 intr_val = (*(si)->intrsoff_fn)((si)->intr_arg)
341 #define INTR_RESTORE(si, intr_val) \
342 if ((si)->intrsrestore_fn && \
343 (si)->coreid[(si)->curidx] == (si)->dev_coreid) \
344 (*(si)->intrsrestore_fn)((si)->intr_arg, intr_val)
346 #define PCI(si) ((si)->pub.buscoretype == PCI_CORE_ID)
347 #define PCIE(si) ((si)->pub.buscoretype == PCIE_CORE_ID)
349 #define PCI_FORCEHT(si) (PCIE(si) && (si->pub.chip == BCM4716_CHIP_ID))
352 #define SI_MSG(args) printk args
357 #define GOODCOREADDR(x, b) \
358 (((x) >= (b)) && ((x) < ((b) + SI_MAXCORES * SI_CORE_SIZE)) && \
359 IS_ALIGNED((x), SI_CORE_SIZE))
361 #define PCIEREGS(si) ((__iomem char *)((si)->curmap) + \
362 PCI_16KB0_PCIREGS_OFFSET)
365 u32 oobselina30; /* 0x000 */
366 u32 oobselina74; /* 0x004 */
368 u32 oobselinb30; /* 0x020 */
369 u32 oobselinb74; /* 0x024 */
371 u32 oobselinc30; /* 0x040 */
372 u32 oobselinc74; /* 0x044 */
374 u32 oobselind30; /* 0x060 */
375 u32 oobselind74; /* 0x064 */
377 u32 oobselouta30; /* 0x100 */
378 u32 oobselouta74; /* 0x104 */
380 u32 oobseloutb30; /* 0x120 */
381 u32 oobseloutb74; /* 0x124 */
383 u32 oobseloutc30; /* 0x140 */
384 u32 oobseloutc74; /* 0x144 */
386 u32 oobseloutd30; /* 0x160 */
387 u32 oobseloutd74; /* 0x164 */
389 u32 oobsynca; /* 0x200 */
390 u32 oobseloutaen; /* 0x204 */
392 u32 oobsyncb; /* 0x220 */
393 u32 oobseloutben; /* 0x224 */
395 u32 oobsyncc; /* 0x240 */
396 u32 oobseloutcen; /* 0x244 */
398 u32 oobsyncd; /* 0x260 */
399 u32 oobseloutden; /* 0x264 */
401 u32 oobaextwidth; /* 0x300 */
402 u32 oobainwidth; /* 0x304 */
403 u32 oobaoutwidth; /* 0x308 */
405 u32 oobbextwidth; /* 0x320 */
406 u32 oobbinwidth; /* 0x324 */
407 u32 oobboutwidth; /* 0x328 */
409 u32 oobcextwidth; /* 0x340 */
410 u32 oobcinwidth; /* 0x344 */
411 u32 oobcoutwidth; /* 0x348 */
413 u32 oobdextwidth; /* 0x360 */
414 u32 oobdinwidth; /* 0x364 */
415 u32 oobdoutwidth; /* 0x368 */
417 u32 ioctrlset; /* 0x400 */
418 u32 ioctrlclear; /* 0x404 */
419 u32 ioctrl; /* 0x408 */
421 u32 iostatus; /* 0x500 */
423 u32 ioctrlwidth; /* 0x700 */
424 u32 iostatuswidth; /* 0x704 */
426 u32 resetctrl; /* 0x800 */
427 u32 resetstatus; /* 0x804 */
428 u32 resetreadid; /* 0x808 */
429 u32 resetwriteid; /* 0x80c */
431 u32 errlogctrl; /* 0x900 */
432 u32 errlogdone; /* 0x904 */
433 u32 errlogstatus; /* 0x908 */
434 u32 errlogaddrlo; /* 0x90c */
435 u32 errlogaddrhi; /* 0x910 */
436 u32 errlogid; /* 0x914 */
437 u32 errloguser; /* 0x918 */
438 u32 errlogflags; /* 0x91c */
440 u32 intstatus; /* 0xa00 */
442 u32 config; /* 0xe00 */
444 u32 itcr; /* 0xf00 */
446 u32 itipooba; /* 0xf10 */
447 u32 itipoobb; /* 0xf14 */
448 u32 itipoobc; /* 0xf18 */
449 u32 itipoobd; /* 0xf1c */
451 u32 itipoobaout; /* 0xf30 */
452 u32 itipoobbout; /* 0xf34 */
453 u32 itipoobcout; /* 0xf38 */
454 u32 itipoobdout; /* 0xf3c */
456 u32 itopooba; /* 0xf50 */
457 u32 itopoobb; /* 0xf54 */
458 u32 itopoobc; /* 0xf58 */
459 u32 itopoobd; /* 0xf5c */
461 u32 itopoobain; /* 0xf70 */
462 u32 itopoobbin; /* 0xf74 */
463 u32 itopoobcin; /* 0xf78 */
464 u32 itopoobdin; /* 0xf7c */
466 u32 itopreset; /* 0xf90 */
468 u32 peripherialid4; /* 0xfd0 */
469 u32 peripherialid5; /* 0xfd4 */
470 u32 peripherialid6; /* 0xfd8 */
471 u32 peripherialid7; /* 0xfdc */
472 u32 peripherialid0; /* 0xfe0 */
473 u32 peripherialid1; /* 0xfe4 */
474 u32 peripherialid2; /* 0xfe8 */
475 u32 peripherialid3; /* 0xfec */
476 u32 componentid0; /* 0xff0 */
477 u32 componentid1; /* 0xff4 */
478 u32 componentid2; /* 0xff8 */
479 u32 componentid3; /* 0xffc */
485 get_erom_ent(struct si_pub *sih, u32 __iomem **eromptr, u32 mask, u32 match)
488 uint inv = 0, nom = 0;
491 ent = R_REG(*eromptr);
497 if ((ent & ER_VALID) == 0) {
502 if (ent == (ER_END | ER_VALID))
505 if ((ent & mask) == match)
515 get_asd(struct si_pub *sih, u32 __iomem **eromptr, uint sp, uint ad, uint st,
516 u32 *addrl, u32 *addrh, u32 *sizel, u32 *sizeh)
520 asd = get_erom_ent(sih, eromptr, ER_VALID, ER_VALID);
521 if (((asd & ER_TAG1) != ER_ADD) ||
522 (((asd & AD_SP_MASK) >> AD_SP_SHIFT) != sp) ||
523 ((asd & AD_ST_MASK) != st)) {
524 /* This is not what we want, "push" it back */
528 *addrl = asd & AD_ADDR_MASK;
530 *addrh = get_erom_ent(sih, eromptr, 0, 0);
534 sz = asd & AD_SZ_MASK;
535 if (sz == AD_SZ_SZD) {
536 szd = get_erom_ent(sih, eromptr, 0, 0);
537 *sizel = szd & SD_SZ_MASK;
539 *sizeh = get_erom_ent(sih, eromptr, 0, 0);
541 *sizel = AD_SZ_BASE << (sz >> AD_SZ_SHIFT);
546 static void ai_hwfixup(struct si_info *sii)
550 /* parse the enumeration rom to identify all cores */
551 static void ai_scan(struct si_pub *sih, struct chipcregs __iomem *cc)
553 struct si_info *sii = (struct si_info *)sih;
556 u32 __iomem *eromptr, *eromlim;
557 void __iomem *regs = cc;
559 erombase = R_REG(&cc->eromptr);
561 /* Set wrappers address */
562 sii->curwrap = (void *)((unsigned long)cc + SI_CORE_SIZE);
564 /* Now point the window at the erom */
565 pci_write_config_dword(sii->pbus, PCI_BAR0_WIN, erombase);
567 eromlim = eromptr + (ER_REMAPCONTROL / sizeof(u32));
569 while (eromptr < eromlim) {
570 u32 cia, cib, cid, mfg, crev, nmw, nsw, nmp, nsp;
571 u32 mpd, asd, addrl, addrh, sizel, sizeh;
578 /* Grok a component */
579 cia = get_erom_ent(sih, &eromptr, ER_TAG, ER_CI);
580 if (cia == (ER_END | ER_VALID)) {
581 /* Found END of erom */
586 cib = get_erom_ent(sih, &eromptr, 0, 0);
588 if ((cib & ER_TAG) != ER_CI) {
589 /* CIA not followed by CIB */
593 cid = (cia & CIA_CID_MASK) >> CIA_CID_SHIFT;
594 mfg = (cia & CIA_MFG_MASK) >> CIA_MFG_SHIFT;
595 crev = (cib & CIB_REV_MASK) >> CIB_REV_SHIFT;
596 nmw = (cib & CIB_NMW_MASK) >> CIB_NMW_SHIFT;
597 nsw = (cib & CIB_NSW_MASK) >> CIB_NSW_SHIFT;
598 nmp = (cib & CIB_NMP_MASK) >> CIB_NMP_SHIFT;
599 nsp = (cib & CIB_NSP_MASK) >> CIB_NSP_SHIFT;
601 if (((mfg == MFGID_ARM) && (cid == DEF_AI_COMP)) || (nsp == 0))
603 if ((nmw + nsw == 0)) {
604 /* A component which is not a core */
605 if (cid == OOB_ROUTER_CORE_ID) {
606 asd = get_asd(sih, &eromptr, 0, 0, AD_ST_SLAVE,
607 &addrl, &addrh, &sizel, &sizeh);
609 sii->oob_router = addrl;
615 /* sii->eromptr[idx] = base; */
618 sii->coreid[idx] = cid;
620 for (i = 0; i < nmp; i++) {
621 mpd = get_erom_ent(sih, &eromptr, ER_VALID, ER_VALID);
622 if ((mpd & ER_TAG) != ER_MP) {
623 /* Not enough MP entries for component */
628 /* First Slave Address Descriptor should be port 0:
629 * the main register space for the core
632 get_asd(sih, &eromptr, 0, 0, AD_ST_SLAVE, &addrl, &addrh,
635 /* Try again to see if it is a bridge */
637 get_asd(sih, &eromptr, 0, 0, AD_ST_BRIDGE, &addrl,
638 &addrh, &sizel, &sizeh);
641 else if ((addrh != 0) || (sizeh != 0)
642 || (sizel != SI_CORE_SIZE)) {
643 /* First Slave ASD for core malformed */
647 sii->coresba[idx] = addrl;
648 sii->coresba_size[idx] = sizel;
649 /* Get any more ASDs in port 0 */
653 get_asd(sih, &eromptr, 0, j, AD_ST_SLAVE, &addrl,
654 &addrh, &sizel, &sizeh);
655 if ((asd != 0) && (j == 1) && (sizel == SI_CORE_SIZE)) {
656 sii->coresba2[idx] = addrl;
657 sii->coresba2_size[idx] = sizel;
662 /* Go through the ASDs for other slave ports */
663 for (i = 1; i < nsp; i++) {
667 get_asd(sih, &eromptr, i, j++, AD_ST_SLAVE,
668 &addrl, &addrh, &sizel, &sizeh);
671 /* SP has no address descriptors */
676 /* Now get master wrappers */
677 for (i = 0; i < nmw; i++) {
679 get_asd(sih, &eromptr, i, 0, AD_ST_MWRAP, &addrl,
680 &addrh, &sizel, &sizeh);
682 /* Missing descriptor for MW */
685 if ((sizeh != 0) || (sizel != SI_CORE_SIZE)) {
686 /* Master wrapper %d is not 4KB */
690 sii->wrapba[idx] = addrl;
693 /* And finally slave wrappers */
694 for (i = 0; i < nsw; i++) {
695 uint fwp = (nsp == 1) ? 0 : 1;
697 get_asd(sih, &eromptr, fwp + i, 0, AD_ST_SWRAP,
698 &addrl, &addrh, &sizel, &sizeh);
700 /* Missing descriptor for SW */
703 if ((sizeh != 0) || (sizel != SI_CORE_SIZE)) {
704 /* Slave wrapper is not 4KB */
707 if ((nmw == 0) && (i == 0))
708 sii->wrapba[idx] = addrl;
711 /* Don't record bridges */
720 /* Reached end of erom without finding END */
726 * This function changes the logical "focus" to the indicated core.
727 * Return the current core's virtual address. Since each core starts with the
728 * same set of registers (BIST, clock control, etc), the returned address
729 * contains the first register of this 'common' register block (not to be
730 * confused with 'common core').
732 void __iomem *ai_setcoreidx(struct si_pub *sih, uint coreidx)
734 struct si_info *sii = (struct si_info *)sih;
735 u32 addr = sii->coresba[coreidx];
736 u32 wrap = sii->wrapba[coreidx];
738 if (coreidx >= sii->numcores)
741 /* point bar0 window */
742 pci_write_config_dword(sii->pbus, PCI_BAR0_WIN, addr);
743 /* point bar0 2nd 4KB window */
744 pci_write_config_dword(sii->pbus, PCI_BAR0_WIN2, wrap);
745 sii->curidx = coreidx;
750 /* Return the number of address spaces in current core */
751 int ai_numaddrspaces(struct si_pub *sih)
756 /* Return the address of the nth address space in the current core */
757 u32 ai_addrspace(struct si_pub *sih, uint asidx)
762 sii = (struct si_info *)sih;
766 return sii->coresba[cidx];
768 return sii->coresba2[cidx];
770 /* Need to parse the erom again to find addr space */
775 /* Return the size of the nth address space in the current core */
776 u32 ai_addrspacesize(struct si_pub *sih, uint asidx)
781 sii = (struct si_info *)sih;
785 return sii->coresba_size[cidx];
787 return sii->coresba2_size[cidx];
789 /* Need to parse the erom again to find addr */
794 uint ai_flag(struct si_pub *sih)
799 sii = (struct si_info *)sih;
802 return R_REG(&ai->oobselouta30) & 0x1f;
805 void ai_setint(struct si_pub *sih, int siflag)
809 uint ai_corevendor(struct si_pub *sih)
814 sii = (struct si_info *)sih;
815 cia = sii->cia[sii->curidx];
816 return (cia & CIA_MFG_MASK) >> CIA_MFG_SHIFT;
819 uint ai_corerev(struct si_pub *sih)
824 sii = (struct si_info *)sih;
825 cib = sii->cib[sii->curidx];
826 return (cib & CIB_REV_MASK) >> CIB_REV_SHIFT;
829 bool ai_iscoreup(struct si_pub *sih)
834 sii = (struct si_info *)sih;
837 return (((R_REG(&ai->ioctrl) & (SICF_FGC | SICF_CLOCK_EN)) ==
839 && ((R_REG(&ai->resetctrl) & AIRC_RESET) == 0));
842 void ai_core_cflags_wo(struct si_pub *sih, u32 mask, u32 val)
848 sii = (struct si_info *)sih;
853 w = ((R_REG(&ai->ioctrl) & ~mask) | val);
854 W_REG(&ai->ioctrl, w);
858 u32 ai_core_cflags(struct si_pub *sih, u32 mask, u32 val)
864 sii = (struct si_info *)sih;
868 w = ((R_REG(&ai->ioctrl) & ~mask) | val);
869 W_REG(&ai->ioctrl, w);
872 return R_REG(&ai->ioctrl);
875 /* return true if PCIE capability exists in the pci config space */
876 static bool ai_ispcie(struct si_info *sii)
881 pcicore_find_pci_capability(sii->pbus, PCI_CAP_ID_EXP, NULL,
889 static bool ai_buscore_prep(struct si_info *sii)
891 /* kludge to enable the clock on the 4306 which lacks a slowclock */
893 ai_clkctl_xtal(&sii->pub, XTAL | PLL, ON);
897 u32 ai_core_sflags(struct si_pub *sih, u32 mask, u32 val)
903 sii = (struct si_info *)sih;
907 w = ((R_REG(&ai->iostatus) & ~mask) | val);
908 W_REG(&ai->iostatus, w);
911 return R_REG(&ai->iostatus);
915 ai_buscore_setup(struct si_info *sii, u32 savewin, uint *origidx)
919 uint pciidx, pcieidx, pcirev, pcierev;
920 struct chipcregs __iomem *cc;
922 cc = ai_setcoreidx(&sii->pub, SI_CC_IDX);
924 /* get chipcommon rev */
925 sii->pub.ccrev = (int)ai_corerev(&sii->pub);
927 /* get chipcommon chipstatus */
928 if (sii->pub.ccrev >= 11)
929 sii->pub.chipst = R_REG(&cc->chipstatus);
931 /* get chipcommon capabilites */
932 sii->pub.cccaps = R_REG(&cc->capabilities);
933 /* get chipcommon extended capabilities */
935 if (sii->pub.ccrev >= 35)
936 sii->pub.cccaps_ext = R_REG(&cc->capabilities_ext);
938 /* get pmu rev and caps */
939 if (sii->pub.cccaps & CC_CAP_PMU) {
940 sii->pub.pmucaps = R_REG(&cc->pmucapabilities);
941 sii->pub.pmurev = sii->pub.pmucaps & PCAP_REV_MASK;
944 /* figure out bus/orignal core idx */
945 sii->pub.buscoretype = NODEV_CORE_ID;
946 sii->pub.buscorerev = NOREV;
947 sii->pub.buscoreidx = BADIDX;
950 pcirev = pcierev = NOREV;
951 pciidx = pcieidx = BADIDX;
953 for (i = 0; i < sii->numcores; i++) {
956 ai_setcoreidx(&sii->pub, i);
957 cid = ai_coreid(&sii->pub);
958 crev = ai_corerev(&sii->pub);
960 if (cid == PCI_CORE_ID) {
964 } else if (cid == PCIE_CORE_ID) {
970 /* find the core idx before entering this func. */
971 if ((savewin && (savewin == sii->coresba[i])) ||
972 (cc == sii->regs[i]))
983 sii->pub.buscoretype = PCI_CORE_ID;
984 sii->pub.buscorerev = pcirev;
985 sii->pub.buscoreidx = pciidx;
987 sii->pub.buscoretype = PCIE_CORE_ID;
988 sii->pub.buscorerev = pcierev;
989 sii->pub.buscoreidx = pcieidx;
992 /* fixup necessary chip/core configurations */
995 sii->pch = pcicore_init(&sii->pub, sii->pbus,
996 (__iomem void *)PCIEREGS(sii));
997 if (sii->pch == NULL)
1001 if (ai_pci_fixcfg(&sii->pub)) {
1002 /* si_doattach: si_pci_fixcfg failed */
1006 /* return to the original core */
1007 ai_setcoreidx(&sii->pub, *origidx);
1013 * get boardtype and boardrev
1015 static __used void ai_nvram_process(struct si_info *sii)
1019 /* do a pci config read to get subsystem id and subvendor id */
1020 pci_read_config_dword(sii->pbus, PCI_SUBSYSTEM_VENDOR_ID, &w);
1022 sii->pub.boardvendor = w & 0xffff;
1023 sii->pub.boardtype = (w >> 16) & 0xffff;
1024 sii->pub.boardflags = getintvar(&sii->pub, "boardflags");
1027 static struct si_info *ai_doattach(struct si_info *sii,
1028 void __iomem *regs, struct pci_dev *pbus,
1029 char **vars, uint *varsz)
1031 struct si_pub *sih = &sii->pub;
1033 struct chipcregs __iomem *cc;
1037 memset((unsigned char *) sii, 0, sizeof(struct si_info));
1041 sih->buscoreidx = BADIDX;
1046 /* find Chipcommon address */
1047 pci_read_config_dword(sii->pbus, PCI_BAR0_WIN, &savewin);
1048 if (!GOODCOREADDR(savewin, SI_ENUM_BASE))
1049 savewin = SI_ENUM_BASE;
1051 pci_write_config_dword(sii->pbus, PCI_BAR0_WIN,
1053 cc = (struct chipcregs __iomem *) regs;
1055 /* bus/core/clk setup for register access */
1056 if (!ai_buscore_prep(sii))
1060 * ChipID recognition.
1061 * We assume we can read chipid at offset 0 from the regs arg.
1062 * If we add other chiptypes (or if we need to support old sdio
1063 * hosts w/o chipcommon), some way of recognizing them needs to
1066 w = R_REG(&cc->chipid);
1067 socitype = (w & CID_TYPE_MASK) >> CID_TYPE_SHIFT;
1068 /* Might as wll fill in chip id rev & pkg */
1069 sih->chip = w & CID_ID_MASK;
1070 sih->chiprev = (w & CID_REV_MASK) >> CID_REV_SHIFT;
1071 sih->chippkg = (w & CID_PKG_MASK) >> CID_PKG_SHIFT;
1075 /* scan for cores */
1076 if (socitype == SOCI_AI) {
1077 SI_MSG(("Found chip type AI (0x%08x)\n", w));
1078 /* pass chipc address instead of original core base */
1079 ai_scan(&sii->pub, cc);
1081 /* Found chip of unknown type */
1084 /* no cores found, bail out */
1085 if (sii->numcores == 0)
1088 /* bus/core/clk setup */
1089 origidx = SI_CC_IDX;
1090 if (!ai_buscore_setup(sii, savewin, &origidx))
1093 /* Init nvram from sprom/otp if they exist */
1094 if (srom_var_init(&sii->pub, cc, vars, varsz))
1097 sii->vars = vars ? *vars : NULL;
1098 sii->varsz = varsz ? *varsz : 0;
1099 ai_nvram_process(sii);
1101 /* === NVRAM, clock is ready === */
1102 cc = (struct chipcregs __iomem *) ai_setcore(sih, CC_CORE_ID, 0);
1103 W_REG(&cc->gpiopullup, 0);
1104 W_REG(&cc->gpiopulldown, 0);
1105 ai_setcoreidx(sih, origidx);
1107 /* PMU specific initializations */
1108 if (sih->cccaps & CC_CAP_PMU) {
1111 si_pmu_chip_init(sih);
1112 xtalfreq = getintvar(sih, "xtalfreq");
1113 /* If xtalfreq var not available, try to measure it */
1115 xtalfreq = si_pmu_measure_alpclk(sih);
1116 si_pmu_pll_init(sih, xtalfreq);
1117 si_pmu_res_init(sih);
1118 si_pmu_swreg_init(sih);
1121 /* setup the GPIO based LED powersave register */
1122 w = getintvar(sih, "leddc");
1124 w = DEFAULT_GPIOTIMERVAL;
1125 ai_corereg(sih, SI_CC_IDX, offsetof(struct chipcregs, gpiotimerval),
1129 pcicore_attach(sii->pch, SI_DOATTACH);
1131 if (sih->chip == BCM43224_CHIP_ID) {
1133 * enable 12 mA drive strenth for 43224 and
1134 * set chipControl register bit 15
1136 if (sih->chiprev == 0) {
1137 SI_MSG(("Applying 43224A0 WARs\n"));
1138 ai_corereg(sih, SI_CC_IDX,
1139 offsetof(struct chipcregs, chipcontrol),
1140 CCTRL43224_GPIO_TOGGLE,
1141 CCTRL43224_GPIO_TOGGLE);
1142 si_pmu_chipcontrol(sih, 0, CCTRL_43224A0_12MA_LED_DRIVE,
1143 CCTRL_43224A0_12MA_LED_DRIVE);
1145 if (sih->chiprev >= 1) {
1146 SI_MSG(("Applying 43224B0+ WARs\n"));
1147 si_pmu_chipcontrol(sih, 0, CCTRL_43224B0_12MA_LED_DRIVE,
1148 CCTRL_43224B0_12MA_LED_DRIVE);
1152 if (sih->chip == BCM4313_CHIP_ID) {
1154 * enable 12 mA drive strenth for 4313 and
1155 * set chipControl register bit 1
1157 SI_MSG(("Applying 4313 WARs\n"));
1158 si_pmu_chipcontrol(sih, 0, CCTRL_4313_12MA_LED_DRIVE,
1159 CCTRL_4313_12MA_LED_DRIVE);
1166 pcicore_deinit(sii->pch);
1173 * Allocate a si handle.
1174 * devid - pci device id (used to determine chip#)
1175 * osh - opaque OS handle
1176 * regs - virtual address of initial core registers
1177 * vars - pointer to a pointer area for "environment" variables
1178 * varsz - pointer to int to return the size of the vars
1181 ai_attach(void __iomem *regs, struct pci_dev *sdh, char **vars, uint *varsz)
1183 struct si_info *sii;
1185 /* alloc struct si_info */
1186 sii = kmalloc(sizeof(struct si_info), GFP_ATOMIC);
1190 if (ai_doattach(sii, regs, sdh, vars, varsz) == NULL) {
1195 return (struct si_pub *) sii;
1198 /* may be called with core in reset */
1199 void ai_detach(struct si_pub *sih)
1201 struct si_info *sii;
1203 struct si_pub *si_local = NULL;
1204 memcpy(&si_local, &sih, sizeof(struct si_pub **));
1206 sii = (struct si_info *)sih;
1212 pcicore_deinit(sii->pch);
1218 /* register driver interrupt disabling and restoring callback functions */
1220 ai_register_intr_callback(struct si_pub *sih, void *intrsoff_fn,
1221 void *intrsrestore_fn,
1222 void *intrsenabled_fn, void *intr_arg)
1224 struct si_info *sii;
1226 sii = (struct si_info *)sih;
1227 sii->intr_arg = intr_arg;
1228 sii->intrsoff_fn = (u32 (*)(void *)) intrsoff_fn;
1229 sii->intrsrestore_fn = (void (*) (void *, u32)) intrsrestore_fn;
1230 sii->intrsenabled_fn = (bool (*)(void *)) intrsenabled_fn;
1231 /* save current core id. when this function called, the current core
1232 * must be the core which provides driver functions(il, et, wl, etc.)
1234 sii->dev_coreid = sii->coreid[sii->curidx];
1237 void ai_deregister_intr_callback(struct si_pub *sih)
1239 struct si_info *sii;
1241 sii = (struct si_info *)sih;
1242 sii->intrsoff_fn = NULL;
1245 uint ai_coreid(struct si_pub *sih)
1247 struct si_info *sii;
1249 sii = (struct si_info *)sih;
1250 return sii->coreid[sii->curidx];
1253 uint ai_coreidx(struct si_pub *sih)
1255 struct si_info *sii;
1257 sii = (struct si_info *)sih;
1261 bool ai_backplane64(struct si_pub *sih)
1263 return (sih->cccaps & CC_CAP_BKPLN64) != 0;
1266 /* return index of coreid or BADIDX if not found */
1267 uint ai_findcoreidx(struct si_pub *sih, uint coreid, uint coreunit)
1269 struct si_info *sii;
1273 sii = (struct si_info *)sih;
1277 for (i = 0; i < sii->numcores; i++)
1278 if (sii->coreid[i] == coreid) {
1279 if (found == coreunit)
1288 * This function changes logical "focus" to the indicated core;
1289 * must be called with interrupts off.
1290 * Moreover, callers should keep interrupts off during switching
1291 * out of and back to d11 core.
1293 void __iomem *ai_setcore(struct si_pub *sih, uint coreid, uint coreunit)
1297 idx = ai_findcoreidx(sih, coreid, coreunit);
1298 if (idx >= SI_MAXCORES)
1301 return ai_setcoreidx(sih, idx);
1304 /* Turn off interrupt as required by ai_setcore, before switch core */
1305 void __iomem *ai_switch_core(struct si_pub *sih, uint coreid, uint *origidx,
1309 struct si_info *sii;
1311 sii = (struct si_info *)sih;
1314 /* Overloading the origidx variable to remember the coreid,
1315 * this works because the core ids cannot be confused with
1319 if (coreid == CC_CORE_ID)
1320 return CCREGS_FAST(sii);
1321 else if (coreid == sih->buscoretype)
1322 return PCIEREGS(sii);
1324 INTR_OFF(sii, *intr_val);
1325 *origidx = sii->curidx;
1326 cc = ai_setcore(sih, coreid, 0);
1330 /* restore coreidx and restore interrupt */
1331 void ai_restore_core(struct si_pub *sih, uint coreid, uint intr_val)
1333 struct si_info *sii;
1335 sii = (struct si_info *)sih;
1337 && ((coreid == CC_CORE_ID) || (coreid == sih->buscoretype)))
1340 ai_setcoreidx(sih, coreid);
1341 INTR_RESTORE(sii, intr_val);
1344 void ai_write_wrapperreg(struct si_pub *sih, u32 offset, u32 val)
1346 struct si_info *sii = (struct si_info *)sih;
1347 u32 *w = (u32 *) sii->curwrap;
1348 W_REG(w + (offset / 4), val);
1353 * Switch to 'coreidx', issue a single arbitrary 32bit register mask&set
1354 * operation, switch back to the original core, and return the new value.
1356 * When using the silicon backplane, no fiddling with interrupts or core
1357 * switches is needed.
1359 * Also, when using pci/pcie, we can optimize away the core switching for pci
1360 * registers and (on newer pci cores) chipcommon registers.
1362 uint ai_corereg(struct si_pub *sih, uint coreidx, uint regoff, uint mask,
1366 u32 __iomem *r = NULL;
1370 struct si_info *sii;
1372 sii = (struct si_info *)sih;
1374 if (coreidx >= SI_MAXCORES)
1378 * If pci/pcie, we can get at pci/pcie regs
1379 * and on newer cores to chipc
1381 if ((sii->coreid[coreidx] == CC_CORE_ID) && SI_FAST(sii)) {
1382 /* Chipc registers are mapped at 12KB */
1384 r = (u32 __iomem *)((__iomem char *)sii->curmap +
1385 PCI_16KB0_CCREGS_OFFSET + regoff);
1386 } else if (sii->pub.buscoreidx == coreidx) {
1388 * pci registers are at either in the last 2KB of
1389 * an 8KB window or, in pcie and pci rev 13 at 8KB
1393 r = (u32 __iomem *)((__iomem char *)sii->curmap +
1394 PCI_16KB0_PCIREGS_OFFSET + regoff);
1396 r = (u32 __iomem *)((__iomem char *)sii->curmap +
1397 ((regoff >= SBCONFIGOFF) ?
1398 PCI_BAR0_PCISBR_OFFSET :
1399 PCI_BAR0_PCIREGS_OFFSET) + regoff);
1403 INTR_OFF(sii, intr_val);
1405 /* save current core index */
1406 origidx = ai_coreidx(&sii->pub);
1409 r = (u32 __iomem *) ((unsigned char __iomem *)
1410 ai_setcoreidx(&sii->pub, coreidx) + regoff);
1415 w = (R_REG(r) & ~mask) | val;
1423 /* restore core index */
1424 if (origidx != coreidx)
1425 ai_setcoreidx(&sii->pub, origidx);
1427 INTR_RESTORE(sii, intr_val);
1433 void ai_core_disable(struct si_pub *sih, u32 bits)
1435 struct si_info *sii;
1439 sii = (struct si_info *)sih;
1443 /* if core is already in reset, just return */
1444 if (R_REG(&ai->resetctrl) & AIRC_RESET)
1447 W_REG(&ai->ioctrl, bits);
1448 dummy = R_REG(&ai->ioctrl);
1451 W_REG(&ai->resetctrl, AIRC_RESET);
1455 /* reset and re-enable a core
1457 * bits - core specific bits that are set during and after reset sequence
1458 * resetbits - core specific bits that are set only during reset sequence
1460 void ai_core_reset(struct si_pub *sih, u32 bits, u32 resetbits)
1462 struct si_info *sii;
1466 sii = (struct si_info *)sih;
1470 * Must do the disable sequence first to work
1471 * for arbitrary current core state.
1473 ai_core_disable(sih, (bits | resetbits));
1476 * Now do the initialization sequence.
1478 W_REG(&ai->ioctrl, (bits | SICF_FGC | SICF_CLOCK_EN));
1479 dummy = R_REG(&ai->ioctrl);
1480 W_REG(&ai->resetctrl, 0);
1483 W_REG(&ai->ioctrl, (bits | SICF_CLOCK_EN));
1484 dummy = R_REG(&ai->ioctrl);
1488 /* return the slow clock source - LPO, XTAL, or PCI */
1489 static uint ai_slowclk_src(struct si_info *sii)
1491 struct chipcregs __iomem *cc;
1494 if (sii->pub.ccrev < 6) {
1495 pci_read_config_dword(sii->pbus, PCI_GPIO_OUT,
1497 if (val & PCI_CFG_GPIO_SCS)
1500 } else if (sii->pub.ccrev < 10) {
1501 cc = (struct chipcregs __iomem *)
1502 ai_setcoreidx(&sii->pub, sii->curidx);
1503 return R_REG(&cc->slow_clk_ctl) & SCC_SS_MASK;
1504 } else /* Insta-clock */
1509 * return the ILP (slowclock) min or max frequency
1510 * precondition: we've established the chip has dynamic clk control
1512 static uint ai_slowclk_freq(struct si_info *sii, bool max_freq,
1513 struct chipcregs __iomem *cc)
1518 slowclk = ai_slowclk_src(sii);
1519 if (sii->pub.ccrev < 6) {
1520 if (slowclk == SCC_SS_PCI)
1521 return max_freq ? (PCIMAXFREQ / 64)
1522 : (PCIMINFREQ / 64);
1524 return max_freq ? (XTALMAXFREQ / 32)
1525 : (XTALMINFREQ / 32);
1526 } else if (sii->pub.ccrev < 10) {
1528 (((R_REG(&cc->slow_clk_ctl) & SCC_CD_MASK) >>
1530 if (slowclk == SCC_SS_LPO)
1531 return max_freq ? LPOMAXFREQ : LPOMINFREQ;
1532 else if (slowclk == SCC_SS_XTAL)
1533 return max_freq ? (XTALMAXFREQ / div)
1534 : (XTALMINFREQ / div);
1535 else if (slowclk == SCC_SS_PCI)
1536 return max_freq ? (PCIMAXFREQ / div)
1537 : (PCIMINFREQ / div);
1539 /* Chipc rev 10 is InstaClock */
1540 div = R_REG(&cc->system_clk_ctl) >> SYCC_CD_SHIFT;
1541 div = 4 * (div + 1);
1542 return max_freq ? XTALMAXFREQ : (XTALMINFREQ / div);
1548 ai_clkctl_setdelay(struct si_info *sii, struct chipcregs __iomem *cc)
1550 uint slowmaxfreq, pll_delay, slowclk;
1551 uint pll_on_delay, fref_sel_delay;
1553 pll_delay = PLL_DELAY;
1556 * If the slow clock is not sourced by the xtal then
1557 * add the xtal_on_delay since the xtal will also be
1558 * powered down by dynamic clk control logic.
1561 slowclk = ai_slowclk_src(sii);
1562 if (slowclk != SCC_SS_XTAL)
1563 pll_delay += XTAL_ON_DELAY;
1565 /* Starting with 4318 it is ILP that is used for the delays */
1567 ai_slowclk_freq(sii, (sii->pub.ccrev >= 10) ? false : true, cc);
1569 pll_on_delay = ((slowmaxfreq * pll_delay) + 999999) / 1000000;
1570 fref_sel_delay = ((slowmaxfreq * FREF_DELAY) + 999999) / 1000000;
1572 W_REG(&cc->pll_on_delay, pll_on_delay);
1573 W_REG(&cc->fref_sel_delay, fref_sel_delay);
1576 /* initialize power control delay registers */
1577 void ai_clkctl_init(struct si_pub *sih)
1579 struct si_info *sii;
1581 struct chipcregs __iomem *cc;
1584 if (!(sih->cccaps & CC_CAP_PWR_CTL))
1587 sii = (struct si_info *)sih;
1588 fast = SI_FAST(sii);
1590 origidx = sii->curidx;
1591 cc = (struct chipcregs __iomem *)
1592 ai_setcore(sih, CC_CORE_ID, 0);
1596 cc = (struct chipcregs __iomem *) CCREGS_FAST(sii);
1601 /* set all Instaclk chip ILP to 1 MHz */
1602 if (sih->ccrev >= 10)
1603 SET_REG(&cc->system_clk_ctl, SYCC_CD_MASK,
1604 (ILP_DIV_1MHZ << SYCC_CD_SHIFT));
1606 ai_clkctl_setdelay(sii, cc);
1609 ai_setcoreidx(sih, origidx);
1613 * return the value suitable for writing to the
1614 * dot11 core FAST_PWRUP_DELAY register
1616 u16 ai_clkctl_fast_pwrup_delay(struct si_pub *sih)
1618 struct si_info *sii;
1620 struct chipcregs __iomem *cc;
1626 sii = (struct si_info *)sih;
1627 if (sih->cccaps & CC_CAP_PMU) {
1628 INTR_OFF(sii, intr_val);
1629 fpdelay = si_pmu_fast_pwrup_delay(sih);
1630 INTR_RESTORE(sii, intr_val);
1634 if (!(sih->cccaps & CC_CAP_PWR_CTL))
1637 fast = SI_FAST(sii);
1640 origidx = sii->curidx;
1641 INTR_OFF(sii, intr_val);
1642 cc = (struct chipcregs __iomem *)
1643 ai_setcore(sih, CC_CORE_ID, 0);
1647 cc = (struct chipcregs __iomem *) CCREGS_FAST(sii);
1652 slowminfreq = ai_slowclk_freq(sii, false, cc);
1653 fpdelay = (((R_REG(&cc->pll_on_delay) + 2) * 1000000) +
1654 (slowminfreq - 1)) / slowminfreq;
1658 ai_setcoreidx(sih, origidx);
1659 INTR_RESTORE(sii, intr_val);
1664 /* turn primary xtal and/or pll off/on */
1665 int ai_clkctl_xtal(struct si_pub *sih, uint what, bool on)
1667 struct si_info *sii;
1670 sii = (struct si_info *)sih;
1672 /* pcie core doesn't have any mapping to control the xtal pu */
1676 pci_read_config_dword(sii->pbus, PCI_GPIO_IN, &in);
1677 pci_read_config_dword(sii->pbus, PCI_GPIO_OUT, &out);
1678 pci_read_config_dword(sii->pbus, PCI_GPIO_OUTEN, &outen);
1681 * Avoid glitching the clock if GPRS is already using it.
1682 * We can't actually read the state of the PLLPD so we infer it
1683 * by the value of XTAL_PU which *is* readable via gpioin.
1685 if (on && (in & PCI_CFG_GPIO_XTAL))
1689 outen |= PCI_CFG_GPIO_XTAL;
1691 outen |= PCI_CFG_GPIO_PLL;
1694 /* turn primary xtal on */
1696 out |= PCI_CFG_GPIO_XTAL;
1698 out |= PCI_CFG_GPIO_PLL;
1699 pci_write_config_dword(sii->pbus,
1701 pci_write_config_dword(sii->pbus,
1702 PCI_GPIO_OUTEN, outen);
1703 udelay(XTAL_ON_DELAY);
1708 out &= ~PCI_CFG_GPIO_PLL;
1709 pci_write_config_dword(sii->pbus,
1715 out &= ~PCI_CFG_GPIO_XTAL;
1717 out |= PCI_CFG_GPIO_PLL;
1718 pci_write_config_dword(sii->pbus,
1720 pci_write_config_dword(sii->pbus,
1721 PCI_GPIO_OUTEN, outen);
1727 /* clk control mechanism through chipcommon, no policy checking */
1728 static bool _ai_clkctl_cc(struct si_info *sii, uint mode)
1731 struct chipcregs __iomem *cc;
1734 bool fast = SI_FAST(sii);
1736 /* chipcommon cores prior to rev6 don't support dynamic clock control */
1737 if (sii->pub.ccrev < 6)
1741 INTR_OFF(sii, intr_val);
1742 origidx = sii->curidx;
1743 cc = (struct chipcregs __iomem *)
1744 ai_setcore(&sii->pub, CC_CORE_ID, 0);
1746 cc = (struct chipcregs __iomem *) CCREGS_FAST(sii);
1751 if (!(sii->pub.cccaps & CC_CAP_PWR_CTL) && (sii->pub.ccrev < 20))
1755 case CLK_FAST: /* FORCEHT, fast (pll) clock */
1756 if (sii->pub.ccrev < 10) {
1758 * don't forget to force xtal back
1759 * on before we clear SCC_DYN_XTAL..
1761 ai_clkctl_xtal(&sii->pub, XTAL, ON);
1762 SET_REG(&cc->slow_clk_ctl,
1763 (SCC_XC | SCC_FS | SCC_IP), SCC_IP);
1764 } else if (sii->pub.ccrev < 20) {
1765 OR_REG(&cc->system_clk_ctl, SYCC_HR);
1767 OR_REG(&cc->clk_ctl_st, CCS_FORCEHT);
1770 /* wait for the PLL */
1771 if (sii->pub.cccaps & CC_CAP_PMU) {
1772 u32 htavail = CCS_HTAVAIL;
1773 SPINWAIT(((R_REG(&cc->clk_ctl_st) & htavail)
1774 == 0), PMU_MAX_TRANSITION_DLY);
1780 case CLK_DYNAMIC: /* enable dynamic clock control */
1781 if (sii->pub.ccrev < 10) {
1782 scc = R_REG(&cc->slow_clk_ctl);
1783 scc &= ~(SCC_FS | SCC_IP | SCC_XC);
1784 if ((scc & SCC_SS_MASK) != SCC_SS_XTAL)
1786 W_REG(&cc->slow_clk_ctl, scc);
1789 * for dynamic control, we have to
1790 * release our xtal_pu "force on"
1793 ai_clkctl_xtal(&sii->pub, XTAL, OFF);
1794 } else if (sii->pub.ccrev < 20) {
1796 AND_REG(&cc->system_clk_ctl, ~SYCC_HR);
1798 AND_REG(&cc->clk_ctl_st, ~CCS_FORCEHT);
1808 ai_setcoreidx(&sii->pub, origidx);
1809 INTR_RESTORE(sii, intr_val);
1811 return mode == CLK_FAST;
1815 * clock control policy function throught chipcommon
1817 * set dynamic clk control mode (forceslow, forcefast, dynamic)
1818 * returns true if we are forcing fast clock
1819 * this is a wrapper over the next internal function
1820 * to allow flexible policy settings for outside caller
1822 bool ai_clkctl_cc(struct si_pub *sih, uint mode)
1824 struct si_info *sii;
1826 sii = (struct si_info *)sih;
1828 /* chipcommon cores prior to rev6 don't support dynamic clock control */
1832 if (PCI_FORCEHT(sii))
1833 return mode == CLK_FAST;
1835 return _ai_clkctl_cc(sii, mode);
1838 /* Build device path */
1839 int ai_devpath(struct si_pub *sih, char *path, int size)
1843 if (!path || size <= 0)
1846 slen = snprintf(path, (size_t) size, "pci/%u/%u/",
1847 ((struct si_info *)sih)->pbus->bus->number,
1848 PCI_SLOT(((struct pci_dev *)
1849 (((struct si_info *)(sih))->pbus))->devfn));
1851 if (slen < 0 || slen >= size) {
1859 void ai_pci_up(struct si_pub *sih)
1861 struct si_info *sii;
1863 sii = (struct si_info *)sih;
1865 if (PCI_FORCEHT(sii))
1866 _ai_clkctl_cc(sii, CLK_FAST);
1869 pcicore_up(sii->pch, SI_PCIUP);
1873 /* Unconfigure and/or apply various WARs when system is going to sleep mode */
1874 void ai_pci_sleep(struct si_pub *sih)
1876 struct si_info *sii;
1878 sii = (struct si_info *)sih;
1880 pcicore_sleep(sii->pch);
1883 /* Unconfigure and/or apply various WARs when going down */
1884 void ai_pci_down(struct si_pub *sih)
1886 struct si_info *sii;
1888 sii = (struct si_info *)sih;
1890 /* release FORCEHT since chip is going to "down" state */
1891 if (PCI_FORCEHT(sii))
1892 _ai_clkctl_cc(sii, CLK_DYNAMIC);
1894 pcicore_down(sii->pch, SI_PCIDOWN);
1898 * Configure the pci core for pci client (NIC) action
1899 * coremask is the bitvec of cores by index to be enabled.
1901 void ai_pci_setup(struct si_pub *sih, uint coremask)
1903 struct si_info *sii;
1904 struct sbpciregs __iomem *regs = NULL;
1908 sii = (struct si_info *)sih;
1911 /* get current core index */
1914 /* we interrupt on this backplane flag number */
1915 siflag = ai_flag(sih);
1917 /* switch over to pci core */
1918 regs = ai_setcoreidx(sih, sii->pub.buscoreidx);
1922 * Enable sb->pci interrupts. Assume
1923 * PCI rev 2.3 support was added in pci core rev 6 and things changed..
1925 if (PCIE(sii) || (PCI(sii) && ((sii->pub.buscorerev) >= 6))) {
1926 /* pci config write to set this core bit in PCIIntMask */
1927 pci_read_config_dword(sii->pbus, PCI_INT_MASK, &w);
1928 w |= (coremask << PCI_SBIM_SHIFT);
1929 pci_write_config_dword(sii->pbus, PCI_INT_MASK, w);
1931 /* set sbintvec bit for our flag number */
1932 ai_setint(sih, siflag);
1936 pcicore_pci_setup(sii->pch, regs);
1938 /* switch back to previous core */
1939 ai_setcoreidx(sih, idx);
1944 * Fixup SROMless PCI device's configuration.
1945 * The current core may be changed upon return.
1947 int ai_pci_fixcfg(struct si_pub *sih)
1950 void __iomem *regs = NULL;
1951 struct si_info *sii = (struct si_info *)sih;
1953 /* Fixup PI in SROM shadow area to enable the correct PCI core access */
1954 /* save the current index */
1955 origidx = ai_coreidx(&sii->pub);
1957 /* check 'pi' is correct and fix it if not */
1958 regs = ai_setcore(&sii->pub, sii->pub.buscoretype, 0);
1959 if (sii->pub.buscoretype == PCIE_CORE_ID)
1960 pcicore_fixcfg_pcie(sii->pch,
1961 (struct sbpcieregs __iomem *)regs);
1962 else if (sii->pub.buscoretype == PCI_CORE_ID)
1963 pcicore_fixcfg_pci(sii->pch, (struct sbpciregs __iomem *)regs);
1965 /* restore the original index */
1966 ai_setcoreidx(&sii->pub, origidx);
1968 pcicore_hwup(sii->pch);
1972 /* mask&set gpiocontrol bits */
1973 u32 ai_gpiocontrol(struct si_pub *sih, u32 mask, u32 val, u8 priority)
1977 regoff = offsetof(struct chipcregs, gpiocontrol);
1978 return ai_corereg(sih, SI_CC_IDX, regoff, mask, val);
1981 void ai_chipcontrl_epa4331(struct si_pub *sih, bool on)
1983 struct si_info *sii;
1984 struct chipcregs __iomem *cc;
1988 sii = (struct si_info *)sih;
1989 origidx = ai_coreidx(sih);
1991 cc = (struct chipcregs __iomem *) ai_setcore(sih, CC_CORE_ID, 0);
1993 val = R_REG(&cc->chipcontrol);
1996 if (sih->chippkg == 9 || sih->chippkg == 0xb)
1997 /* Ext PA Controls for 4331 12x9 Package */
1998 W_REG(&cc->chipcontrol, val |
1999 CCTRL4331_EXTPA_EN |
2000 CCTRL4331_EXTPA_ON_GPIO2_5);
2002 /* Ext PA Controls for 4331 12x12 Package */
2003 W_REG(&cc->chipcontrol,
2004 val | CCTRL4331_EXTPA_EN);
2006 val &= ~(CCTRL4331_EXTPA_EN | CCTRL4331_EXTPA_ON_GPIO2_5);
2007 W_REG(&cc->chipcontrol, val);
2010 ai_setcoreidx(sih, origidx);
2013 /* Enable BT-COEX & Ex-PA for 4313 */
2014 void ai_epa_4313war(struct si_pub *sih)
2016 struct si_info *sii;
2017 struct chipcregs __iomem *cc;
2020 sii = (struct si_info *)sih;
2021 origidx = ai_coreidx(sih);
2023 cc = ai_setcore(sih, CC_CORE_ID, 0);
2026 W_REG(&cc->gpiocontrol,
2027 R_REG(&cc->gpiocontrol) | GPIO_CTRL_EPA_EN_MASK);
2029 ai_setcoreidx(sih, origidx);
2032 /* check if the device is removed */
2033 bool ai_deviceremoved(struct si_pub *sih)
2036 struct si_info *sii;
2038 sii = (struct si_info *)sih;
2040 pci_read_config_dword(sii->pbus, PCI_VENDOR_ID, &w);
2041 if ((w & 0xFFFF) != PCI_VENDOR_ID_BROADCOM)
2047 bool ai_is_sprom_available(struct si_pub *sih)
2049 if (sih->ccrev >= 31) {
2050 struct si_info *sii;
2052 struct chipcregs __iomem *cc;
2055 if ((sih->cccaps & CC_CAP_SROM) == 0)
2058 sii = (struct si_info *)sih;
2059 origidx = sii->curidx;
2060 cc = ai_setcoreidx(sih, SI_CC_IDX);
2061 sromctrl = R_REG(&cc->sromcontrol);
2062 ai_setcoreidx(sih, origidx);
2063 return sromctrl & SRC_PRESENT;
2066 switch (sih->chip) {
2067 case BCM4313_CHIP_ID:
2068 return (sih->chipst & CST4313_SPROM_PRESENT) != 0;
2074 bool ai_is_otp_disabled(struct si_pub *sih)
2076 switch (sih->chip) {
2077 case BCM4313_CHIP_ID:
2078 return (sih->chipst & CST4313_OTP_PRESENT) == 0;
2079 /* These chips always have their OTP on */
2080 case BCM43224_CHIP_ID:
2081 case BCM43225_CHIP_ID: