1
2
3
4
5
6#include <linux/kernel.h>
7#include <linux/module.h>
8#include <linux/firmware.h>
9#include <linux/pci.h>
10#include <linux/vmalloc.h>
11#include <linux/delay.h>
12#include <linux/interrupt.h>
13#include <linux/bcma/bcma.h>
14#include <linux/sched.h>
15#include <asm/unaligned.h>
16
17#include <soc.h>
18#include <chipcommon.h>
19#include <brcmu_utils.h>
20#include <brcmu_wifi.h>
21#include <brcm_hw_ids.h>
22
23
24#define brcmf_err(bus, fmt, ...) \
25 do { \
26 if (IS_ENABLED(CONFIG_BRCMDBG) || \
27 IS_ENABLED(CONFIG_BRCM_TRACING) || \
28 net_ratelimit()) \
29 __brcmf_err(bus, __func__, fmt, ##__VA_ARGS__); \
30 } while (0)
31
32#include "debug.h"
33#include "bus.h"
34#include "commonring.h"
35#include "msgbuf.h"
36#include "pcie.h"
37#include "firmware.h"
38#include "chip.h"
39#include "core.h"
40#include "common.h"
41
42
43enum brcmf_pcie_state {
44 BRCMFMAC_PCIE_STATE_DOWN,
45 BRCMFMAC_PCIE_STATE_UP
46};
47
48BRCMF_FW_DEF(43602, "brcmfmac43602-pcie");
49BRCMF_FW_DEF(4350, "brcmfmac4350-pcie");
50BRCMF_FW_DEF(4350C, "brcmfmac4350c2-pcie");
51BRCMF_FW_DEF(4356, "brcmfmac4356-pcie");
52BRCMF_FW_DEF(43570, "brcmfmac43570-pcie");
53BRCMF_FW_DEF(4358, "brcmfmac4358-pcie");
54BRCMF_FW_DEF(4359, "brcmfmac4359-pcie");
55BRCMF_FW_DEF(4365B, "brcmfmac4365b-pcie");
56BRCMF_FW_DEF(4365C, "brcmfmac4365c-pcie");
57BRCMF_FW_DEF(4366B, "brcmfmac4366b-pcie");
58BRCMF_FW_DEF(4366C, "brcmfmac4366c-pcie");
59BRCMF_FW_DEF(4371, "brcmfmac4371-pcie");
60
61static const struct brcmf_firmware_mapping brcmf_pcie_fwnames[] = {
62 BRCMF_FW_ENTRY(BRCM_CC_43602_CHIP_ID, 0xFFFFFFFF, 43602),
63 BRCMF_FW_ENTRY(BRCM_CC_43465_CHIP_ID, 0xFFFFFFF0, 4366C),
64 BRCMF_FW_ENTRY(BRCM_CC_4350_CHIP_ID, 0x000000FF, 4350C),
65 BRCMF_FW_ENTRY(BRCM_CC_4350_CHIP_ID, 0xFFFFFF00, 4350),
66 BRCMF_FW_ENTRY(BRCM_CC_43525_CHIP_ID, 0xFFFFFFF0, 4365C),
67 BRCMF_FW_ENTRY(BRCM_CC_4356_CHIP_ID, 0xFFFFFFFF, 4356),
68 BRCMF_FW_ENTRY(BRCM_CC_43567_CHIP_ID, 0xFFFFFFFF, 43570),
69 BRCMF_FW_ENTRY(BRCM_CC_43569_CHIP_ID, 0xFFFFFFFF, 43570),
70 BRCMF_FW_ENTRY(BRCM_CC_43570_CHIP_ID, 0xFFFFFFFF, 43570),
71 BRCMF_FW_ENTRY(BRCM_CC_4358_CHIP_ID, 0xFFFFFFFF, 4358),
72 BRCMF_FW_ENTRY(BRCM_CC_4359_CHIP_ID, 0xFFFFFFFF, 4359),
73 BRCMF_FW_ENTRY(BRCM_CC_4365_CHIP_ID, 0x0000000F, 4365B),
74 BRCMF_FW_ENTRY(BRCM_CC_4365_CHIP_ID, 0xFFFFFFF0, 4365C),
75 BRCMF_FW_ENTRY(BRCM_CC_4366_CHIP_ID, 0x0000000F, 4366B),
76 BRCMF_FW_ENTRY(BRCM_CC_4366_CHIP_ID, 0xFFFFFFF0, 4366C),
77 BRCMF_FW_ENTRY(BRCM_CC_43664_CHIP_ID, 0xFFFFFFF0, 4366C),
78 BRCMF_FW_ENTRY(BRCM_CC_4371_CHIP_ID, 0xFFFFFFFF, 4371),
79};
80
81#define BRCMF_PCIE_FW_UP_TIMEOUT 2000
82
83#define BRCMF_PCIE_REG_MAP_SIZE (32 * 1024)
84
85
86#define BRCMF_PCIE_BAR0_WINDOW 0x80
87#define BRCMF_PCIE_BAR0_REG_SIZE 0x1000
88#define BRCMF_PCIE_BAR0_WRAPPERBASE 0x70
89
90#define BRCMF_PCIE_BAR0_WRAPBASE_DMP_OFFSET 0x1000
91#define BRCMF_PCIE_BARO_PCIE_ENUM_OFFSET 0x2000
92
93#define BRCMF_PCIE_ARMCR4REG_BANKIDX 0x40
94#define BRCMF_PCIE_ARMCR4REG_BANKPDA 0x4C
95
96#define BRCMF_PCIE_REG_INTSTATUS 0x90
97#define BRCMF_PCIE_REG_INTMASK 0x94
98#define BRCMF_PCIE_REG_SBMBX 0x98
99
100#define BRCMF_PCIE_REG_LINK_STATUS_CTRL 0xBC
101
102#define BRCMF_PCIE_PCIE2REG_INTMASK 0x24
103#define BRCMF_PCIE_PCIE2REG_MAILBOXINT 0x48
104#define BRCMF_PCIE_PCIE2REG_MAILBOXMASK 0x4C
105#define BRCMF_PCIE_PCIE2REG_CONFIGADDR 0x120
106#define BRCMF_PCIE_PCIE2REG_CONFIGDATA 0x124
107#define BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_0 0x140
108#define BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_1 0x144
109
110#define BRCMF_PCIE2_INTA 0x01
111#define BRCMF_PCIE2_INTB 0x02
112
113#define BRCMF_PCIE_INT_0 0x01
114#define BRCMF_PCIE_INT_1 0x02
115#define BRCMF_PCIE_INT_DEF (BRCMF_PCIE_INT_0 | \
116 BRCMF_PCIE_INT_1)
117
118#define BRCMF_PCIE_MB_INT_FN0_0 0x0100
119#define BRCMF_PCIE_MB_INT_FN0_1 0x0200
120#define BRCMF_PCIE_MB_INT_D2H0_DB0 0x10000
121#define BRCMF_PCIE_MB_INT_D2H0_DB1 0x20000
122#define BRCMF_PCIE_MB_INT_D2H1_DB0 0x40000
123#define BRCMF_PCIE_MB_INT_D2H1_DB1 0x80000
124#define BRCMF_PCIE_MB_INT_D2H2_DB0 0x100000
125#define BRCMF_PCIE_MB_INT_D2H2_DB1 0x200000
126#define BRCMF_PCIE_MB_INT_D2H3_DB0 0x400000
127#define BRCMF_PCIE_MB_INT_D2H3_DB1 0x800000
128
129#define BRCMF_PCIE_MB_INT_D2H_DB (BRCMF_PCIE_MB_INT_D2H0_DB0 | \
130 BRCMF_PCIE_MB_INT_D2H0_DB1 | \
131 BRCMF_PCIE_MB_INT_D2H1_DB0 | \
132 BRCMF_PCIE_MB_INT_D2H1_DB1 | \
133 BRCMF_PCIE_MB_INT_D2H2_DB0 | \
134 BRCMF_PCIE_MB_INT_D2H2_DB1 | \
135 BRCMF_PCIE_MB_INT_D2H3_DB0 | \
136 BRCMF_PCIE_MB_INT_D2H3_DB1)
137
138#define BRCMF_PCIE_SHARED_VERSION_7 7
139#define BRCMF_PCIE_MIN_SHARED_VERSION 5
140#define BRCMF_PCIE_MAX_SHARED_VERSION BRCMF_PCIE_SHARED_VERSION_7
141#define BRCMF_PCIE_SHARED_VERSION_MASK 0x00FF
142#define BRCMF_PCIE_SHARED_DMA_INDEX 0x10000
143#define BRCMF_PCIE_SHARED_DMA_2B_IDX 0x100000
144#define BRCMF_PCIE_SHARED_HOSTRDY_DB1 0x10000000
145
146#define BRCMF_PCIE_FLAGS_HTOD_SPLIT 0x4000
147#define BRCMF_PCIE_FLAGS_DTOH_SPLIT 0x8000
148
149#define BRCMF_SHARED_MAX_RXBUFPOST_OFFSET 34
150#define BRCMF_SHARED_RING_BASE_OFFSET 52
151#define BRCMF_SHARED_RX_DATAOFFSET_OFFSET 36
152#define BRCMF_SHARED_CONSOLE_ADDR_OFFSET 20
153#define BRCMF_SHARED_HTOD_MB_DATA_ADDR_OFFSET 40
154#define BRCMF_SHARED_DTOH_MB_DATA_ADDR_OFFSET 44
155#define BRCMF_SHARED_RING_INFO_ADDR_OFFSET 48
156#define BRCMF_SHARED_DMA_SCRATCH_LEN_OFFSET 52
157#define BRCMF_SHARED_DMA_SCRATCH_ADDR_OFFSET 56
158#define BRCMF_SHARED_DMA_RINGUPD_LEN_OFFSET 64
159#define BRCMF_SHARED_DMA_RINGUPD_ADDR_OFFSET 68
160
161#define BRCMF_RING_H2D_RING_COUNT_OFFSET 0
162#define BRCMF_RING_D2H_RING_COUNT_OFFSET 1
163#define BRCMF_RING_H2D_RING_MEM_OFFSET 4
164#define BRCMF_RING_H2D_RING_STATE_OFFSET 8
165
166#define BRCMF_RING_MEM_BASE_ADDR_OFFSET 8
167#define BRCMF_RING_MAX_ITEM_OFFSET 4
168#define BRCMF_RING_LEN_ITEMS_OFFSET 6
169#define BRCMF_RING_MEM_SZ 16
170#define BRCMF_RING_STATE_SZ 8
171
172#define BRCMF_DEF_MAX_RXBUFPOST 255
173
174#define BRCMF_CONSOLE_BUFADDR_OFFSET 8
175#define BRCMF_CONSOLE_BUFSIZE_OFFSET 12
176#define BRCMF_CONSOLE_WRITEIDX_OFFSET 16
177
178#define BRCMF_DMA_D2H_SCRATCH_BUF_LEN 8
179#define BRCMF_DMA_D2H_RINGUPD_BUF_LEN 1024
180
181#define BRCMF_D2H_DEV_D3_ACK 0x00000001
182#define BRCMF_D2H_DEV_DS_ENTER_REQ 0x00000002
183#define BRCMF_D2H_DEV_DS_EXIT_NOTE 0x00000004
184#define BRCMF_D2H_DEV_FWHALT 0x10000000
185
186#define BRCMF_H2D_HOST_D3_INFORM 0x00000001
187#define BRCMF_H2D_HOST_DS_ACK 0x00000002
188#define BRCMF_H2D_HOST_D0_INFORM_IN_USE 0x00000008
189#define BRCMF_H2D_HOST_D0_INFORM 0x00000010
190
191#define BRCMF_PCIE_MBDATA_TIMEOUT msecs_to_jiffies(2000)
192
193#define BRCMF_PCIE_CFGREG_STATUS_CMD 0x4
194#define BRCMF_PCIE_CFGREG_PM_CSR 0x4C
195#define BRCMF_PCIE_CFGREG_MSI_CAP 0x58
196#define BRCMF_PCIE_CFGREG_MSI_ADDR_L 0x5C
197#define BRCMF_PCIE_CFGREG_MSI_ADDR_H 0x60
198#define BRCMF_PCIE_CFGREG_MSI_DATA 0x64
199#define BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL 0xBC
200#define BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL2 0xDC
201#define BRCMF_PCIE_CFGREG_RBAR_CTRL 0x228
202#define BRCMF_PCIE_CFGREG_PML1_SUB_CTRL1 0x248
203#define BRCMF_PCIE_CFGREG_REG_BAR2_CONFIG 0x4E0
204#define BRCMF_PCIE_CFGREG_REG_BAR3_CONFIG 0x4F4
205#define BRCMF_PCIE_LINK_STATUS_CTRL_ASPM_ENAB 3
206
207
208#define BRCMF_RAMSIZE_MAGIC 0x534d4152
209#define BRCMF_RAMSIZE_OFFSET 0x6c
210
211
212struct brcmf_pcie_console {
213 u32 base_addr;
214 u32 buf_addr;
215 u32 bufsize;
216 u32 read_idx;
217 u8 log_str[256];
218 u8 log_idx;
219};
220
221struct brcmf_pcie_shared_info {
222 u32 tcm_base_address;
223 u32 flags;
224 struct brcmf_pcie_ringbuf *commonrings[BRCMF_NROF_COMMON_MSGRINGS];
225 struct brcmf_pcie_ringbuf *flowrings;
226 u16 max_rxbufpost;
227 u16 max_flowrings;
228 u16 max_submissionrings;
229 u16 max_completionrings;
230 u32 rx_dataoffset;
231 u32 htod_mb_data_addr;
232 u32 dtoh_mb_data_addr;
233 u32 ring_info_addr;
234 struct brcmf_pcie_console console;
235 void *scratch;
236 dma_addr_t scratch_dmahandle;
237 void *ringupd;
238 dma_addr_t ringupd_dmahandle;
239 u8 version;
240};
241
242struct brcmf_pcie_core_info {
243 u32 base;
244 u32 wrapbase;
245};
246
247struct brcmf_pciedev_info {
248 enum brcmf_pcie_state state;
249 bool in_irq;
250 struct pci_dev *pdev;
251 char fw_name[BRCMF_FW_NAME_LEN];
252 char nvram_name[BRCMF_FW_NAME_LEN];
253 void __iomem *regs;
254 void __iomem *tcm;
255 u32 ram_base;
256 u32 ram_size;
257 struct brcmf_chip *ci;
258 u32 coreid;
259 struct brcmf_pcie_shared_info shared;
260 wait_queue_head_t mbdata_resp_wait;
261 bool mbdata_completed;
262 bool irq_allocated;
263 bool wowl_enabled;
264 u8 dma_idx_sz;
265 void *idxbuf;
266 u32 idxbuf_sz;
267 dma_addr_t idxbuf_dmahandle;
268 u16 (*read_ptr)(struct brcmf_pciedev_info *devinfo, u32 mem_offset);
269 void (*write_ptr)(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
270 u16 value);
271 struct brcmf_mp_device *settings;
272};
273
274struct brcmf_pcie_ringbuf {
275 struct brcmf_commonring commonring;
276 dma_addr_t dma_handle;
277 u32 w_idx_addr;
278 u32 r_idx_addr;
279 struct brcmf_pciedev_info *devinfo;
280 u8 id;
281};
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299struct brcmf_pcie_dhi_ringinfo {
300 __le32 ringmem;
301 __le32 h2d_w_idx_ptr;
302 __le32 h2d_r_idx_ptr;
303 __le32 d2h_w_idx_ptr;
304 __le32 d2h_r_idx_ptr;
305 struct msgbuf_buf_addr h2d_w_idx_hostaddr;
306 struct msgbuf_buf_addr h2d_r_idx_hostaddr;
307 struct msgbuf_buf_addr d2h_w_idx_hostaddr;
308 struct msgbuf_buf_addr d2h_r_idx_hostaddr;
309 __le16 max_flowrings;
310 __le16 max_submissionrings;
311 __le16 max_completionrings;
312};
313
314static const u32 brcmf_ring_max_item[BRCMF_NROF_COMMON_MSGRINGS] = {
315 BRCMF_H2D_MSGRING_CONTROL_SUBMIT_MAX_ITEM,
316 BRCMF_H2D_MSGRING_RXPOST_SUBMIT_MAX_ITEM,
317 BRCMF_D2H_MSGRING_CONTROL_COMPLETE_MAX_ITEM,
318 BRCMF_D2H_MSGRING_TX_COMPLETE_MAX_ITEM,
319 BRCMF_D2H_MSGRING_RX_COMPLETE_MAX_ITEM
320};
321
322static const u32 brcmf_ring_itemsize_pre_v7[BRCMF_NROF_COMMON_MSGRINGS] = {
323 BRCMF_H2D_MSGRING_CONTROL_SUBMIT_ITEMSIZE,
324 BRCMF_H2D_MSGRING_RXPOST_SUBMIT_ITEMSIZE,
325 BRCMF_D2H_MSGRING_CONTROL_COMPLETE_ITEMSIZE,
326 BRCMF_D2H_MSGRING_TX_COMPLETE_ITEMSIZE_PRE_V7,
327 BRCMF_D2H_MSGRING_RX_COMPLETE_ITEMSIZE_PRE_V7
328};
329
330static const u32 brcmf_ring_itemsize[BRCMF_NROF_COMMON_MSGRINGS] = {
331 BRCMF_H2D_MSGRING_CONTROL_SUBMIT_ITEMSIZE,
332 BRCMF_H2D_MSGRING_RXPOST_SUBMIT_ITEMSIZE,
333 BRCMF_D2H_MSGRING_CONTROL_COMPLETE_ITEMSIZE,
334 BRCMF_D2H_MSGRING_TX_COMPLETE_ITEMSIZE,
335 BRCMF_D2H_MSGRING_RX_COMPLETE_ITEMSIZE
336};
337
338static void brcmf_pcie_setup(struct device *dev, int ret,
339 struct brcmf_fw_request *fwreq);
340static struct brcmf_fw_request *
341brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo);
342
343static u32
344brcmf_pcie_read_reg32(struct brcmf_pciedev_info *devinfo, u32 reg_offset)
345{
346 void __iomem *address = devinfo->regs + reg_offset;
347
348 return (ioread32(address));
349}
350
351
352static void
353brcmf_pcie_write_reg32(struct brcmf_pciedev_info *devinfo, u32 reg_offset,
354 u32 value)
355{
356 void __iomem *address = devinfo->regs + reg_offset;
357
358 iowrite32(value, address);
359}
360
361
362static u8
363brcmf_pcie_read_tcm8(struct brcmf_pciedev_info *devinfo, u32 mem_offset)
364{
365 void __iomem *address = devinfo->tcm + mem_offset;
366
367 return (ioread8(address));
368}
369
370
371static u16
372brcmf_pcie_read_tcm16(struct brcmf_pciedev_info *devinfo, u32 mem_offset)
373{
374 void __iomem *address = devinfo->tcm + mem_offset;
375
376 return (ioread16(address));
377}
378
379
380static void
381brcmf_pcie_write_tcm16(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
382 u16 value)
383{
384 void __iomem *address = devinfo->tcm + mem_offset;
385
386 iowrite16(value, address);
387}
388
389
390static u16
391brcmf_pcie_read_idx(struct brcmf_pciedev_info *devinfo, u32 mem_offset)
392{
393 u16 *address = devinfo->idxbuf + mem_offset;
394
395 return (*(address));
396}
397
398
399static void
400brcmf_pcie_write_idx(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
401 u16 value)
402{
403 u16 *address = devinfo->idxbuf + mem_offset;
404
405 *(address) = value;
406}
407
408
409static u32
410brcmf_pcie_read_tcm32(struct brcmf_pciedev_info *devinfo, u32 mem_offset)
411{
412 void __iomem *address = devinfo->tcm + mem_offset;
413
414 return (ioread32(address));
415}
416
417
418static void
419brcmf_pcie_write_tcm32(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
420 u32 value)
421{
422 void __iomem *address = devinfo->tcm + mem_offset;
423
424 iowrite32(value, address);
425}
426
427
428static u32
429brcmf_pcie_read_ram32(struct brcmf_pciedev_info *devinfo, u32 mem_offset)
430{
431 void __iomem *addr = devinfo->tcm + devinfo->ci->rambase + mem_offset;
432
433 return (ioread32(addr));
434}
435
436
437static void
438brcmf_pcie_write_ram32(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
439 u32 value)
440{
441 void __iomem *addr = devinfo->tcm + devinfo->ci->rambase + mem_offset;
442
443 iowrite32(value, addr);
444}
445
446
447static void
448brcmf_pcie_copy_mem_todev(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
449 void *srcaddr, u32 len)
450{
451 void __iomem *address = devinfo->tcm + mem_offset;
452 __le32 *src32;
453 __le16 *src16;
454 u8 *src8;
455
456 if (((ulong)address & 4) || ((ulong)srcaddr & 4) || (len & 4)) {
457 if (((ulong)address & 2) || ((ulong)srcaddr & 2) || (len & 2)) {
458 src8 = (u8 *)srcaddr;
459 while (len) {
460 iowrite8(*src8, address);
461 address++;
462 src8++;
463 len--;
464 }
465 } else {
466 len = len / 2;
467 src16 = (__le16 *)srcaddr;
468 while (len) {
469 iowrite16(le16_to_cpu(*src16), address);
470 address += 2;
471 src16++;
472 len--;
473 }
474 }
475 } else {
476 len = len / 4;
477 src32 = (__le32 *)srcaddr;
478 while (len) {
479 iowrite32(le32_to_cpu(*src32), address);
480 address += 4;
481 src32++;
482 len--;
483 }
484 }
485}
486
487
488static void
489brcmf_pcie_copy_dev_tomem(struct brcmf_pciedev_info *devinfo, u32 mem_offset,
490 void *dstaddr, u32 len)
491{
492 void __iomem *address = devinfo->tcm + mem_offset;
493 __le32 *dst32;
494 __le16 *dst16;
495 u8 *dst8;
496
497 if (((ulong)address & 4) || ((ulong)dstaddr & 4) || (len & 4)) {
498 if (((ulong)address & 2) || ((ulong)dstaddr & 2) || (len & 2)) {
499 dst8 = (u8 *)dstaddr;
500 while (len) {
501 *dst8 = ioread8(address);
502 address++;
503 dst8++;
504 len--;
505 }
506 } else {
507 len = len / 2;
508 dst16 = (__le16 *)dstaddr;
509 while (len) {
510 *dst16 = cpu_to_le16(ioread16(address));
511 address += 2;
512 dst16++;
513 len--;
514 }
515 }
516 } else {
517 len = len / 4;
518 dst32 = (__le32 *)dstaddr;
519 while (len) {
520 *dst32 = cpu_to_le32(ioread32(address));
521 address += 4;
522 dst32++;
523 len--;
524 }
525 }
526}
527
528
529#define WRITECC32(devinfo, reg, value) brcmf_pcie_write_reg32(devinfo, \
530 CHIPCREGOFFS(reg), value)
531
532
533static void
534brcmf_pcie_select_core(struct brcmf_pciedev_info *devinfo, u16 coreid)
535{
536 const struct pci_dev *pdev = devinfo->pdev;
537 struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev);
538 struct brcmf_core *core;
539 u32 bar0_win;
540
541 core = brcmf_chip_get_core(devinfo->ci, coreid);
542 if (core) {
543 bar0_win = core->base;
544 pci_write_config_dword(pdev, BRCMF_PCIE_BAR0_WINDOW, bar0_win);
545 if (pci_read_config_dword(pdev, BRCMF_PCIE_BAR0_WINDOW,
546 &bar0_win) == 0) {
547 if (bar0_win != core->base) {
548 bar0_win = core->base;
549 pci_write_config_dword(pdev,
550 BRCMF_PCIE_BAR0_WINDOW,
551 bar0_win);
552 }
553 }
554 } else {
555 brcmf_err(bus, "Unsupported core selected %x\n", coreid);
556 }
557}
558
559
560static void brcmf_pcie_reset_device(struct brcmf_pciedev_info *devinfo)
561{
562 struct brcmf_core *core;
563 u16 cfg_offset[] = { BRCMF_PCIE_CFGREG_STATUS_CMD,
564 BRCMF_PCIE_CFGREG_PM_CSR,
565 BRCMF_PCIE_CFGREG_MSI_CAP,
566 BRCMF_PCIE_CFGREG_MSI_ADDR_L,
567 BRCMF_PCIE_CFGREG_MSI_ADDR_H,
568 BRCMF_PCIE_CFGREG_MSI_DATA,
569 BRCMF_PCIE_CFGREG_LINK_STATUS_CTRL2,
570 BRCMF_PCIE_CFGREG_RBAR_CTRL,
571 BRCMF_PCIE_CFGREG_PML1_SUB_CTRL1,
572 BRCMF_PCIE_CFGREG_REG_BAR2_CONFIG,
573 BRCMF_PCIE_CFGREG_REG_BAR3_CONFIG };
574 u32 i;
575 u32 val;
576 u32 lsc;
577
578 if (!devinfo->ci)
579 return;
580
581
582 brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2);
583 pci_read_config_dword(devinfo->pdev, BRCMF_PCIE_REG_LINK_STATUS_CTRL,
584 &lsc);
585 val = lsc & (~BRCMF_PCIE_LINK_STATUS_CTRL_ASPM_ENAB);
586 pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_LINK_STATUS_CTRL,
587 val);
588
589
590 brcmf_pcie_select_core(devinfo, BCMA_CORE_CHIPCOMMON);
591 WRITECC32(devinfo, watchdog, 4);
592 msleep(100);
593
594
595 brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2);
596 pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_LINK_STATUS_CTRL,
597 lsc);
598
599 core = brcmf_chip_get_core(devinfo->ci, BCMA_CORE_PCIE2);
600 if (core->rev <= 13) {
601 for (i = 0; i < ARRAY_SIZE(cfg_offset); i++) {
602 brcmf_pcie_write_reg32(devinfo,
603 BRCMF_PCIE_PCIE2REG_CONFIGADDR,
604 cfg_offset[i]);
605 val = brcmf_pcie_read_reg32(devinfo,
606 BRCMF_PCIE_PCIE2REG_CONFIGDATA);
607 brcmf_dbg(PCIE, "config offset 0x%04x, value 0x%04x\n",
608 cfg_offset[i], val);
609 brcmf_pcie_write_reg32(devinfo,
610 BRCMF_PCIE_PCIE2REG_CONFIGDATA,
611 val);
612 }
613 }
614}
615
616
617static void brcmf_pcie_attach(struct brcmf_pciedev_info *devinfo)
618{
619 u32 config;
620
621
622 brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2);
623 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGADDR, 0x4e0);
624 config = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA);
625 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_CONFIGDATA, config);
626
627 device_wakeup_enable(&devinfo->pdev->dev);
628}
629
630
631static int brcmf_pcie_enter_download_state(struct brcmf_pciedev_info *devinfo)
632{
633 if (devinfo->ci->chip == BRCM_CC_43602_CHIP_ID) {
634 brcmf_pcie_select_core(devinfo, BCMA_CORE_ARM_CR4);
635 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKIDX,
636 5);
637 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKPDA,
638 0);
639 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKIDX,
640 7);
641 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_ARMCR4REG_BANKPDA,
642 0);
643 }
644 return 0;
645}
646
647
648static int brcmf_pcie_exit_download_state(struct brcmf_pciedev_info *devinfo,
649 u32 resetintr)
650{
651 struct brcmf_core *core;
652
653 if (devinfo->ci->chip == BRCM_CC_43602_CHIP_ID) {
654 core = brcmf_chip_get_core(devinfo->ci, BCMA_CORE_INTERNAL_MEM);
655 brcmf_chip_resetcore(core, 0, 0, 0);
656 }
657
658 if (!brcmf_chip_set_active(devinfo->ci, resetintr))
659 return -EINVAL;
660 return 0;
661}
662
663
664static int
665brcmf_pcie_send_mb_data(struct brcmf_pciedev_info *devinfo, u32 htod_mb_data)
666{
667 struct brcmf_pcie_shared_info *shared;
668 struct brcmf_core *core;
669 u32 addr;
670 u32 cur_htod_mb_data;
671 u32 i;
672
673 shared = &devinfo->shared;
674 addr = shared->htod_mb_data_addr;
675 cur_htod_mb_data = brcmf_pcie_read_tcm32(devinfo, addr);
676
677 if (cur_htod_mb_data != 0)
678 brcmf_dbg(PCIE, "MB transaction is already pending 0x%04x\n",
679 cur_htod_mb_data);
680
681 i = 0;
682 while (cur_htod_mb_data != 0) {
683 msleep(10);
684 i++;
685 if (i > 100)
686 return -EIO;
687 cur_htod_mb_data = brcmf_pcie_read_tcm32(devinfo, addr);
688 }
689
690 brcmf_pcie_write_tcm32(devinfo, addr, htod_mb_data);
691 pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1);
692
693
694 core = brcmf_chip_get_core(devinfo->ci, BCMA_CORE_PCIE2);
695 if (core->rev <= 13)
696 pci_write_config_dword(devinfo->pdev, BRCMF_PCIE_REG_SBMBX, 1);
697
698 return 0;
699}
700
701
702static void brcmf_pcie_handle_mb_data(struct brcmf_pciedev_info *devinfo)
703{
704 struct brcmf_pcie_shared_info *shared;
705 u32 addr;
706 u32 dtoh_mb_data;
707
708 shared = &devinfo->shared;
709 addr = shared->dtoh_mb_data_addr;
710 dtoh_mb_data = brcmf_pcie_read_tcm32(devinfo, addr);
711
712 if (!dtoh_mb_data)
713 return;
714
715 brcmf_pcie_write_tcm32(devinfo, addr, 0);
716
717 brcmf_dbg(PCIE, "D2H_MB_DATA: 0x%04x\n", dtoh_mb_data);
718 if (dtoh_mb_data & BRCMF_D2H_DEV_DS_ENTER_REQ) {
719 brcmf_dbg(PCIE, "D2H_MB_DATA: DEEP SLEEP REQ\n");
720 brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_DS_ACK);
721 brcmf_dbg(PCIE, "D2H_MB_DATA: sent DEEP SLEEP ACK\n");
722 }
723 if (dtoh_mb_data & BRCMF_D2H_DEV_DS_EXIT_NOTE)
724 brcmf_dbg(PCIE, "D2H_MB_DATA: DEEP SLEEP EXIT\n");
725 if (dtoh_mb_data & BRCMF_D2H_DEV_D3_ACK) {
726 brcmf_dbg(PCIE, "D2H_MB_DATA: D3 ACK\n");
727 devinfo->mbdata_completed = true;
728 wake_up(&devinfo->mbdata_resp_wait);
729 }
730 if (dtoh_mb_data & BRCMF_D2H_DEV_FWHALT) {
731 brcmf_dbg(PCIE, "D2H_MB_DATA: FW HALT\n");
732 brcmf_fw_crashed(&devinfo->pdev->dev);
733 }
734}
735
736
737static void brcmf_pcie_bus_console_init(struct brcmf_pciedev_info *devinfo)
738{
739 struct brcmf_pcie_shared_info *shared;
740 struct brcmf_pcie_console *console;
741 u32 addr;
742
743 shared = &devinfo->shared;
744 console = &shared->console;
745 addr = shared->tcm_base_address + BRCMF_SHARED_CONSOLE_ADDR_OFFSET;
746 console->base_addr = brcmf_pcie_read_tcm32(devinfo, addr);
747
748 addr = console->base_addr + BRCMF_CONSOLE_BUFADDR_OFFSET;
749 console->buf_addr = brcmf_pcie_read_tcm32(devinfo, addr);
750 addr = console->base_addr + BRCMF_CONSOLE_BUFSIZE_OFFSET;
751 console->bufsize = brcmf_pcie_read_tcm32(devinfo, addr);
752
753 brcmf_dbg(FWCON, "Console: base %x, buf %x, size %d\n",
754 console->base_addr, console->buf_addr, console->bufsize);
755}
756
757
758
759
760
761
762static void brcmf_pcie_bus_console_read(struct brcmf_pciedev_info *devinfo,
763 bool error)
764{
765 struct pci_dev *pdev = devinfo->pdev;
766 struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev);
767 struct brcmf_pcie_console *console;
768 u32 addr;
769 u8 ch;
770 u32 newidx;
771
772 if (!error && !BRCMF_FWCON_ON())
773 return;
774
775 console = &devinfo->shared.console;
776 addr = console->base_addr + BRCMF_CONSOLE_WRITEIDX_OFFSET;
777 newidx = brcmf_pcie_read_tcm32(devinfo, addr);
778 while (newidx != console->read_idx) {
779 addr = console->buf_addr + console->read_idx;
780 ch = brcmf_pcie_read_tcm8(devinfo, addr);
781 console->read_idx++;
782 if (console->read_idx == console->bufsize)
783 console->read_idx = 0;
784 if (ch == '\r')
785 continue;
786 console->log_str[console->log_idx] = ch;
787 console->log_idx++;
788 if ((ch != '\n') &&
789 (console->log_idx == (sizeof(console->log_str) - 2))) {
790 ch = '\n';
791 console->log_str[console->log_idx] = ch;
792 console->log_idx++;
793 }
794 if (ch == '\n') {
795 console->log_str[console->log_idx] = 0;
796 if (error)
797 __brcmf_err(bus, __func__, "CONSOLE: %s",
798 console->log_str);
799 else
800 pr_debug("CONSOLE: %s", console->log_str);
801 console->log_idx = 0;
802 }
803 }
804}
805
806
807static void brcmf_pcie_intr_disable(struct brcmf_pciedev_info *devinfo)
808{
809 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXMASK, 0);
810}
811
812
813static void brcmf_pcie_intr_enable(struct brcmf_pciedev_info *devinfo)
814{
815 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXMASK,
816 BRCMF_PCIE_MB_INT_D2H_DB |
817 BRCMF_PCIE_MB_INT_FN0_0 |
818 BRCMF_PCIE_MB_INT_FN0_1);
819}
820
821static void brcmf_pcie_hostready(struct brcmf_pciedev_info *devinfo)
822{
823 if (devinfo->shared.flags & BRCMF_PCIE_SHARED_HOSTRDY_DB1)
824 brcmf_pcie_write_reg32(devinfo,
825 BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_1, 1);
826}
827
828static irqreturn_t brcmf_pcie_quick_check_isr(int irq, void *arg)
829{
830 struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)arg;
831
832 if (brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT)) {
833 brcmf_pcie_intr_disable(devinfo);
834 brcmf_dbg(PCIE, "Enter\n");
835 return IRQ_WAKE_THREAD;
836 }
837 return IRQ_NONE;
838}
839
840
841static irqreturn_t brcmf_pcie_isr_thread(int irq, void *arg)
842{
843 struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)arg;
844 u32 status;
845
846 devinfo->in_irq = true;
847 status = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT);
848 brcmf_dbg(PCIE, "Enter %x\n", status);
849 if (status) {
850 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT,
851 status);
852 if (status & (BRCMF_PCIE_MB_INT_FN0_0 |
853 BRCMF_PCIE_MB_INT_FN0_1))
854 brcmf_pcie_handle_mb_data(devinfo);
855 if (status & BRCMF_PCIE_MB_INT_D2H_DB) {
856 if (devinfo->state == BRCMFMAC_PCIE_STATE_UP)
857 brcmf_proto_msgbuf_rx_trigger(
858 &devinfo->pdev->dev);
859 }
860 }
861 brcmf_pcie_bus_console_read(devinfo, false);
862 if (devinfo->state == BRCMFMAC_PCIE_STATE_UP)
863 brcmf_pcie_intr_enable(devinfo);
864 devinfo->in_irq = false;
865 return IRQ_HANDLED;
866}
867
868
869static int brcmf_pcie_request_irq(struct brcmf_pciedev_info *devinfo)
870{
871 struct pci_dev *pdev = devinfo->pdev;
872 struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev);
873
874 brcmf_pcie_intr_disable(devinfo);
875
876 brcmf_dbg(PCIE, "Enter\n");
877
878 pci_enable_msi(pdev);
879 if (request_threaded_irq(pdev->irq, brcmf_pcie_quick_check_isr,
880 brcmf_pcie_isr_thread, IRQF_SHARED,
881 "brcmf_pcie_intr", devinfo)) {
882 pci_disable_msi(pdev);
883 brcmf_err(bus, "Failed to request IRQ %d\n", pdev->irq);
884 return -EIO;
885 }
886 devinfo->irq_allocated = true;
887 return 0;
888}
889
890
891static void brcmf_pcie_release_irq(struct brcmf_pciedev_info *devinfo)
892{
893 struct pci_dev *pdev = devinfo->pdev;
894 struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev);
895 u32 status;
896 u32 count;
897
898 if (!devinfo->irq_allocated)
899 return;
900
901 brcmf_pcie_intr_disable(devinfo);
902 free_irq(pdev->irq, devinfo);
903 pci_disable_msi(pdev);
904
905 msleep(50);
906 count = 0;
907 while ((devinfo->in_irq) && (count < 20)) {
908 msleep(50);
909 count++;
910 }
911 if (devinfo->in_irq)
912 brcmf_err(bus, "Still in IRQ (processing) !!!\n");
913
914 status = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT);
915 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT, status);
916
917 devinfo->irq_allocated = false;
918}
919
920
921static int brcmf_pcie_ring_mb_write_rptr(void *ctx)
922{
923 struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx;
924 struct brcmf_pciedev_info *devinfo = ring->devinfo;
925 struct brcmf_commonring *commonring = &ring->commonring;
926
927 if (devinfo->state != BRCMFMAC_PCIE_STATE_UP)
928 return -EIO;
929
930 brcmf_dbg(PCIE, "W r_ptr %d (%d), ring %d\n", commonring->r_ptr,
931 commonring->w_ptr, ring->id);
932
933 devinfo->write_ptr(devinfo, ring->r_idx_addr, commonring->r_ptr);
934
935 return 0;
936}
937
938
939static int brcmf_pcie_ring_mb_write_wptr(void *ctx)
940{
941 struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx;
942 struct brcmf_pciedev_info *devinfo = ring->devinfo;
943 struct brcmf_commonring *commonring = &ring->commonring;
944
945 if (devinfo->state != BRCMFMAC_PCIE_STATE_UP)
946 return -EIO;
947
948 brcmf_dbg(PCIE, "W w_ptr %d (%d), ring %d\n", commonring->w_ptr,
949 commonring->r_ptr, ring->id);
950
951 devinfo->write_ptr(devinfo, ring->w_idx_addr, commonring->w_ptr);
952
953 return 0;
954}
955
956
957static int brcmf_pcie_ring_mb_ring_bell(void *ctx)
958{
959 struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx;
960 struct brcmf_pciedev_info *devinfo = ring->devinfo;
961
962 if (devinfo->state != BRCMFMAC_PCIE_STATE_UP)
963 return -EIO;
964
965 brcmf_dbg(PCIE, "RING !\n");
966
967 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_H2D_MAILBOX_0, 1);
968
969 return 0;
970}
971
972
973static int brcmf_pcie_ring_mb_update_rptr(void *ctx)
974{
975 struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx;
976 struct brcmf_pciedev_info *devinfo = ring->devinfo;
977 struct brcmf_commonring *commonring = &ring->commonring;
978
979 if (devinfo->state != BRCMFMAC_PCIE_STATE_UP)
980 return -EIO;
981
982 commonring->r_ptr = devinfo->read_ptr(devinfo, ring->r_idx_addr);
983
984 brcmf_dbg(PCIE, "R r_ptr %d (%d), ring %d\n", commonring->r_ptr,
985 commonring->w_ptr, ring->id);
986
987 return 0;
988}
989
990
991static int brcmf_pcie_ring_mb_update_wptr(void *ctx)
992{
993 struct brcmf_pcie_ringbuf *ring = (struct brcmf_pcie_ringbuf *)ctx;
994 struct brcmf_pciedev_info *devinfo = ring->devinfo;
995 struct brcmf_commonring *commonring = &ring->commonring;
996
997 if (devinfo->state != BRCMFMAC_PCIE_STATE_UP)
998 return -EIO;
999
1000 commonring->w_ptr = devinfo->read_ptr(devinfo, ring->w_idx_addr);
1001
1002 brcmf_dbg(PCIE, "R w_ptr %d (%d), ring %d\n", commonring->w_ptr,
1003 commonring->r_ptr, ring->id);
1004
1005 return 0;
1006}
1007
1008
1009static void *
1010brcmf_pcie_init_dmabuffer_for_device(struct brcmf_pciedev_info *devinfo,
1011 u32 size, u32 tcm_dma_phys_addr,
1012 dma_addr_t *dma_handle)
1013{
1014 void *ring;
1015 u64 address;
1016
1017 ring = dma_alloc_coherent(&devinfo->pdev->dev, size, dma_handle,
1018 GFP_KERNEL);
1019 if (!ring)
1020 return NULL;
1021
1022 address = (u64)*dma_handle;
1023 brcmf_pcie_write_tcm32(devinfo, tcm_dma_phys_addr,
1024 address & 0xffffffff);
1025 brcmf_pcie_write_tcm32(devinfo, tcm_dma_phys_addr + 4, address >> 32);
1026
1027 memset(ring, 0, size);
1028
1029 return (ring);
1030}
1031
1032
1033static struct brcmf_pcie_ringbuf *
1034brcmf_pcie_alloc_dma_and_ring(struct brcmf_pciedev_info *devinfo, u32 ring_id,
1035 u32 tcm_ring_phys_addr)
1036{
1037 void *dma_buf;
1038 dma_addr_t dma_handle;
1039 struct brcmf_pcie_ringbuf *ring;
1040 u32 size;
1041 u32 addr;
1042 const u32 *ring_itemsize_array;
1043
1044 if (devinfo->shared.version < BRCMF_PCIE_SHARED_VERSION_7)
1045 ring_itemsize_array = brcmf_ring_itemsize_pre_v7;
1046 else
1047 ring_itemsize_array = brcmf_ring_itemsize;
1048
1049 size = brcmf_ring_max_item[ring_id] * ring_itemsize_array[ring_id];
1050 dma_buf = brcmf_pcie_init_dmabuffer_for_device(devinfo, size,
1051 tcm_ring_phys_addr + BRCMF_RING_MEM_BASE_ADDR_OFFSET,
1052 &dma_handle);
1053 if (!dma_buf)
1054 return NULL;
1055
1056 addr = tcm_ring_phys_addr + BRCMF_RING_MAX_ITEM_OFFSET;
1057 brcmf_pcie_write_tcm16(devinfo, addr, brcmf_ring_max_item[ring_id]);
1058 addr = tcm_ring_phys_addr + BRCMF_RING_LEN_ITEMS_OFFSET;
1059 brcmf_pcie_write_tcm16(devinfo, addr, ring_itemsize_array[ring_id]);
1060
1061 ring = kzalloc(sizeof(*ring), GFP_KERNEL);
1062 if (!ring) {
1063 dma_free_coherent(&devinfo->pdev->dev, size, dma_buf,
1064 dma_handle);
1065 return NULL;
1066 }
1067 brcmf_commonring_config(&ring->commonring, brcmf_ring_max_item[ring_id],
1068 ring_itemsize_array[ring_id], dma_buf);
1069 ring->dma_handle = dma_handle;
1070 ring->devinfo = devinfo;
1071 brcmf_commonring_register_cb(&ring->commonring,
1072 brcmf_pcie_ring_mb_ring_bell,
1073 brcmf_pcie_ring_mb_update_rptr,
1074 brcmf_pcie_ring_mb_update_wptr,
1075 brcmf_pcie_ring_mb_write_rptr,
1076 brcmf_pcie_ring_mb_write_wptr, ring);
1077
1078 return (ring);
1079}
1080
1081
1082static void brcmf_pcie_release_ringbuffer(struct device *dev,
1083 struct brcmf_pcie_ringbuf *ring)
1084{
1085 void *dma_buf;
1086 u32 size;
1087
1088 if (!ring)
1089 return;
1090
1091 dma_buf = ring->commonring.buf_addr;
1092 if (dma_buf) {
1093 size = ring->commonring.depth * ring->commonring.item_len;
1094 dma_free_coherent(dev, size, dma_buf, ring->dma_handle);
1095 }
1096 kfree(ring);
1097}
1098
1099
1100static void brcmf_pcie_release_ringbuffers(struct brcmf_pciedev_info *devinfo)
1101{
1102 u32 i;
1103
1104 for (i = 0; i < BRCMF_NROF_COMMON_MSGRINGS; i++) {
1105 brcmf_pcie_release_ringbuffer(&devinfo->pdev->dev,
1106 devinfo->shared.commonrings[i]);
1107 devinfo->shared.commonrings[i] = NULL;
1108 }
1109 kfree(devinfo->shared.flowrings);
1110 devinfo->shared.flowrings = NULL;
1111 if (devinfo->idxbuf) {
1112 dma_free_coherent(&devinfo->pdev->dev,
1113 devinfo->idxbuf_sz,
1114 devinfo->idxbuf,
1115 devinfo->idxbuf_dmahandle);
1116 devinfo->idxbuf = NULL;
1117 }
1118}
1119
1120
1121static int brcmf_pcie_init_ringbuffers(struct brcmf_pciedev_info *devinfo)
1122{
1123 struct brcmf_bus *bus = dev_get_drvdata(&devinfo->pdev->dev);
1124 struct brcmf_pcie_ringbuf *ring;
1125 struct brcmf_pcie_ringbuf *rings;
1126 u32 d2h_w_idx_ptr;
1127 u32 d2h_r_idx_ptr;
1128 u32 h2d_w_idx_ptr;
1129 u32 h2d_r_idx_ptr;
1130 u32 ring_mem_ptr;
1131 u32 i;
1132 u64 address;
1133 u32 bufsz;
1134 u8 idx_offset;
1135 struct brcmf_pcie_dhi_ringinfo ringinfo;
1136 u16 max_flowrings;
1137 u16 max_submissionrings;
1138 u16 max_completionrings;
1139
1140 memcpy_fromio(&ringinfo, devinfo->tcm + devinfo->shared.ring_info_addr,
1141 sizeof(ringinfo));
1142 if (devinfo->shared.version >= 6) {
1143 max_submissionrings = le16_to_cpu(ringinfo.max_submissionrings);
1144 max_flowrings = le16_to_cpu(ringinfo.max_flowrings);
1145 max_completionrings = le16_to_cpu(ringinfo.max_completionrings);
1146 } else {
1147 max_submissionrings = le16_to_cpu(ringinfo.max_flowrings);
1148 max_flowrings = max_submissionrings -
1149 BRCMF_NROF_H2D_COMMON_MSGRINGS;
1150 max_completionrings = BRCMF_NROF_D2H_COMMON_MSGRINGS;
1151 }
1152
1153 if (devinfo->dma_idx_sz != 0) {
1154 bufsz = (max_submissionrings + max_completionrings) *
1155 devinfo->dma_idx_sz * 2;
1156 devinfo->idxbuf = dma_alloc_coherent(&devinfo->pdev->dev, bufsz,
1157 &devinfo->idxbuf_dmahandle,
1158 GFP_KERNEL);
1159 if (!devinfo->idxbuf)
1160 devinfo->dma_idx_sz = 0;
1161 }
1162
1163 if (devinfo->dma_idx_sz == 0) {
1164 d2h_w_idx_ptr = le32_to_cpu(ringinfo.d2h_w_idx_ptr);
1165 d2h_r_idx_ptr = le32_to_cpu(ringinfo.d2h_r_idx_ptr);
1166 h2d_w_idx_ptr = le32_to_cpu(ringinfo.h2d_w_idx_ptr);
1167 h2d_r_idx_ptr = le32_to_cpu(ringinfo.h2d_r_idx_ptr);
1168 idx_offset = sizeof(u32);
1169 devinfo->write_ptr = brcmf_pcie_write_tcm16;
1170 devinfo->read_ptr = brcmf_pcie_read_tcm16;
1171 brcmf_dbg(PCIE, "Using TCM indices\n");
1172 } else {
1173 memset(devinfo->idxbuf, 0, bufsz);
1174 devinfo->idxbuf_sz = bufsz;
1175 idx_offset = devinfo->dma_idx_sz;
1176 devinfo->write_ptr = brcmf_pcie_write_idx;
1177 devinfo->read_ptr = brcmf_pcie_read_idx;
1178
1179 h2d_w_idx_ptr = 0;
1180 address = (u64)devinfo->idxbuf_dmahandle;
1181 ringinfo.h2d_w_idx_hostaddr.low_addr =
1182 cpu_to_le32(address & 0xffffffff);
1183 ringinfo.h2d_w_idx_hostaddr.high_addr =
1184 cpu_to_le32(address >> 32);
1185
1186 h2d_r_idx_ptr = h2d_w_idx_ptr +
1187 max_submissionrings * idx_offset;
1188 address += max_submissionrings * idx_offset;
1189 ringinfo.h2d_r_idx_hostaddr.low_addr =
1190 cpu_to_le32(address & 0xffffffff);
1191 ringinfo.h2d_r_idx_hostaddr.high_addr =
1192 cpu_to_le32(address >> 32);
1193
1194 d2h_w_idx_ptr = h2d_r_idx_ptr +
1195 max_submissionrings * idx_offset;
1196 address += max_submissionrings * idx_offset;
1197 ringinfo.d2h_w_idx_hostaddr.low_addr =
1198 cpu_to_le32(address & 0xffffffff);
1199 ringinfo.d2h_w_idx_hostaddr.high_addr =
1200 cpu_to_le32(address >> 32);
1201
1202 d2h_r_idx_ptr = d2h_w_idx_ptr +
1203 max_completionrings * idx_offset;
1204 address += max_completionrings * idx_offset;
1205 ringinfo.d2h_r_idx_hostaddr.low_addr =
1206 cpu_to_le32(address & 0xffffffff);
1207 ringinfo.d2h_r_idx_hostaddr.high_addr =
1208 cpu_to_le32(address >> 32);
1209
1210 memcpy_toio(devinfo->tcm + devinfo->shared.ring_info_addr,
1211 &ringinfo, sizeof(ringinfo));
1212 brcmf_dbg(PCIE, "Using host memory indices\n");
1213 }
1214
1215 ring_mem_ptr = le32_to_cpu(ringinfo.ringmem);
1216
1217 for (i = 0; i < BRCMF_NROF_H2D_COMMON_MSGRINGS; i++) {
1218 ring = brcmf_pcie_alloc_dma_and_ring(devinfo, i, ring_mem_ptr);
1219 if (!ring)
1220 goto fail;
1221 ring->w_idx_addr = h2d_w_idx_ptr;
1222 ring->r_idx_addr = h2d_r_idx_ptr;
1223 ring->id = i;
1224 devinfo->shared.commonrings[i] = ring;
1225
1226 h2d_w_idx_ptr += idx_offset;
1227 h2d_r_idx_ptr += idx_offset;
1228 ring_mem_ptr += BRCMF_RING_MEM_SZ;
1229 }
1230
1231 for (i = BRCMF_NROF_H2D_COMMON_MSGRINGS;
1232 i < BRCMF_NROF_COMMON_MSGRINGS; i++) {
1233 ring = brcmf_pcie_alloc_dma_and_ring(devinfo, i, ring_mem_ptr);
1234 if (!ring)
1235 goto fail;
1236 ring->w_idx_addr = d2h_w_idx_ptr;
1237 ring->r_idx_addr = d2h_r_idx_ptr;
1238 ring->id = i;
1239 devinfo->shared.commonrings[i] = ring;
1240
1241 d2h_w_idx_ptr += idx_offset;
1242 d2h_r_idx_ptr += idx_offset;
1243 ring_mem_ptr += BRCMF_RING_MEM_SZ;
1244 }
1245
1246 devinfo->shared.max_flowrings = max_flowrings;
1247 devinfo->shared.max_submissionrings = max_submissionrings;
1248 devinfo->shared.max_completionrings = max_completionrings;
1249 rings = kcalloc(max_flowrings, sizeof(*ring), GFP_KERNEL);
1250 if (!rings)
1251 goto fail;
1252
1253 brcmf_dbg(PCIE, "Nr of flowrings is %d\n", max_flowrings);
1254
1255 for (i = 0; i < max_flowrings; i++) {
1256 ring = &rings[i];
1257 ring->devinfo = devinfo;
1258 ring->id = i + BRCMF_H2D_MSGRING_FLOWRING_IDSTART;
1259 brcmf_commonring_register_cb(&ring->commonring,
1260 brcmf_pcie_ring_mb_ring_bell,
1261 brcmf_pcie_ring_mb_update_rptr,
1262 brcmf_pcie_ring_mb_update_wptr,
1263 brcmf_pcie_ring_mb_write_rptr,
1264 brcmf_pcie_ring_mb_write_wptr,
1265 ring);
1266 ring->w_idx_addr = h2d_w_idx_ptr;
1267 ring->r_idx_addr = h2d_r_idx_ptr;
1268 h2d_w_idx_ptr += idx_offset;
1269 h2d_r_idx_ptr += idx_offset;
1270 }
1271 devinfo->shared.flowrings = rings;
1272
1273 return 0;
1274
1275fail:
1276 brcmf_err(bus, "Allocating ring buffers failed\n");
1277 brcmf_pcie_release_ringbuffers(devinfo);
1278 return -ENOMEM;
1279}
1280
1281
1282static void
1283brcmf_pcie_release_scratchbuffers(struct brcmf_pciedev_info *devinfo)
1284{
1285 if (devinfo->shared.scratch)
1286 dma_free_coherent(&devinfo->pdev->dev,
1287 BRCMF_DMA_D2H_SCRATCH_BUF_LEN,
1288 devinfo->shared.scratch,
1289 devinfo->shared.scratch_dmahandle);
1290 if (devinfo->shared.ringupd)
1291 dma_free_coherent(&devinfo->pdev->dev,
1292 BRCMF_DMA_D2H_RINGUPD_BUF_LEN,
1293 devinfo->shared.ringupd,
1294 devinfo->shared.ringupd_dmahandle);
1295}
1296
1297static int brcmf_pcie_init_scratchbuffers(struct brcmf_pciedev_info *devinfo)
1298{
1299 struct brcmf_bus *bus = dev_get_drvdata(&devinfo->pdev->dev);
1300 u64 address;
1301 u32 addr;
1302
1303 devinfo->shared.scratch =
1304 dma_alloc_coherent(&devinfo->pdev->dev,
1305 BRCMF_DMA_D2H_SCRATCH_BUF_LEN,
1306 &devinfo->shared.scratch_dmahandle,
1307 GFP_KERNEL);
1308 if (!devinfo->shared.scratch)
1309 goto fail;
1310
1311 addr = devinfo->shared.tcm_base_address +
1312 BRCMF_SHARED_DMA_SCRATCH_ADDR_OFFSET;
1313 address = (u64)devinfo->shared.scratch_dmahandle;
1314 brcmf_pcie_write_tcm32(devinfo, addr, address & 0xffffffff);
1315 brcmf_pcie_write_tcm32(devinfo, addr + 4, address >> 32);
1316 addr = devinfo->shared.tcm_base_address +
1317 BRCMF_SHARED_DMA_SCRATCH_LEN_OFFSET;
1318 brcmf_pcie_write_tcm32(devinfo, addr, BRCMF_DMA_D2H_SCRATCH_BUF_LEN);
1319
1320 devinfo->shared.ringupd =
1321 dma_alloc_coherent(&devinfo->pdev->dev,
1322 BRCMF_DMA_D2H_RINGUPD_BUF_LEN,
1323 &devinfo->shared.ringupd_dmahandle,
1324 GFP_KERNEL);
1325 if (!devinfo->shared.ringupd)
1326 goto fail;
1327
1328 addr = devinfo->shared.tcm_base_address +
1329 BRCMF_SHARED_DMA_RINGUPD_ADDR_OFFSET;
1330 address = (u64)devinfo->shared.ringupd_dmahandle;
1331 brcmf_pcie_write_tcm32(devinfo, addr, address & 0xffffffff);
1332 brcmf_pcie_write_tcm32(devinfo, addr + 4, address >> 32);
1333 addr = devinfo->shared.tcm_base_address +
1334 BRCMF_SHARED_DMA_RINGUPD_LEN_OFFSET;
1335 brcmf_pcie_write_tcm32(devinfo, addr, BRCMF_DMA_D2H_RINGUPD_BUF_LEN);
1336 return 0;
1337
1338fail:
1339 brcmf_err(bus, "Allocating scratch buffers failed\n");
1340 brcmf_pcie_release_scratchbuffers(devinfo);
1341 return -ENOMEM;
1342}
1343
1344
1345static void brcmf_pcie_down(struct device *dev)
1346{
1347}
1348
1349
1350static int brcmf_pcie_tx(struct device *dev, struct sk_buff *skb)
1351{
1352 return 0;
1353}
1354
1355
1356static int brcmf_pcie_tx_ctlpkt(struct device *dev, unsigned char *msg,
1357 uint len)
1358{
1359 return 0;
1360}
1361
1362
1363static int brcmf_pcie_rx_ctlpkt(struct device *dev, unsigned char *msg,
1364 uint len)
1365{
1366 return 0;
1367}
1368
1369
1370static void brcmf_pcie_wowl_config(struct device *dev, bool enabled)
1371{
1372 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1373 struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie;
1374 struct brcmf_pciedev_info *devinfo = buspub->devinfo;
1375
1376 brcmf_dbg(PCIE, "Configuring WOWL, enabled=%d\n", enabled);
1377 devinfo->wowl_enabled = enabled;
1378}
1379
1380
1381static size_t brcmf_pcie_get_ramsize(struct device *dev)
1382{
1383 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1384 struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie;
1385 struct brcmf_pciedev_info *devinfo = buspub->devinfo;
1386
1387 return devinfo->ci->ramsize - devinfo->ci->srsize;
1388}
1389
1390
1391static int brcmf_pcie_get_memdump(struct device *dev, void *data, size_t len)
1392{
1393 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1394 struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie;
1395 struct brcmf_pciedev_info *devinfo = buspub->devinfo;
1396
1397 brcmf_dbg(PCIE, "dump at 0x%08X: len=%zu\n", devinfo->ci->rambase, len);
1398 brcmf_pcie_copy_dev_tomem(devinfo, devinfo->ci->rambase, data, len);
1399 return 0;
1400}
1401
1402static
1403int brcmf_pcie_get_fwname(struct device *dev, const char *ext, u8 *fw_name)
1404{
1405 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1406 struct brcmf_fw_request *fwreq;
1407 struct brcmf_fw_name fwnames[] = {
1408 { ext, fw_name },
1409 };
1410
1411 fwreq = brcmf_fw_alloc_request(bus_if->chip, bus_if->chiprev,
1412 brcmf_pcie_fwnames,
1413 ARRAY_SIZE(brcmf_pcie_fwnames),
1414 fwnames, ARRAY_SIZE(fwnames));
1415 if (!fwreq)
1416 return -ENOMEM;
1417
1418 kfree(fwreq);
1419 return 0;
1420}
1421
1422static int brcmf_pcie_reset(struct device *dev)
1423{
1424 struct brcmf_bus *bus_if = dev_get_drvdata(dev);
1425 struct brcmf_pciedev *buspub = bus_if->bus_priv.pcie;
1426 struct brcmf_pciedev_info *devinfo = buspub->devinfo;
1427 struct brcmf_fw_request *fwreq;
1428 int err;
1429
1430 brcmf_pcie_bus_console_read(devinfo, true);
1431
1432 brcmf_detach(dev);
1433
1434 brcmf_pcie_release_irq(devinfo);
1435 brcmf_pcie_release_scratchbuffers(devinfo);
1436 brcmf_pcie_release_ringbuffers(devinfo);
1437 brcmf_pcie_reset_device(devinfo);
1438
1439 fwreq = brcmf_pcie_prepare_fw_request(devinfo);
1440 if (!fwreq) {
1441 dev_err(dev, "Failed to prepare FW request\n");
1442 return -ENOMEM;
1443 }
1444
1445 err = brcmf_fw_get_firmwares(dev, fwreq, brcmf_pcie_setup);
1446 if (err) {
1447 dev_err(dev, "Failed to prepare FW request\n");
1448 kfree(fwreq);
1449 }
1450
1451 return err;
1452}
1453
1454static const struct brcmf_bus_ops brcmf_pcie_bus_ops = {
1455 .txdata = brcmf_pcie_tx,
1456 .stop = brcmf_pcie_down,
1457 .txctl = brcmf_pcie_tx_ctlpkt,
1458 .rxctl = brcmf_pcie_rx_ctlpkt,
1459 .wowl_config = brcmf_pcie_wowl_config,
1460 .get_ramsize = brcmf_pcie_get_ramsize,
1461 .get_memdump = brcmf_pcie_get_memdump,
1462 .get_fwname = brcmf_pcie_get_fwname,
1463 .reset = brcmf_pcie_reset,
1464};
1465
1466
1467static void
1468brcmf_pcie_adjust_ramsize(struct brcmf_pciedev_info *devinfo, u8 *data,
1469 u32 data_len)
1470{
1471 __le32 *field;
1472 u32 newsize;
1473
1474 if (data_len < BRCMF_RAMSIZE_OFFSET + 8)
1475 return;
1476
1477 field = (__le32 *)&data[BRCMF_RAMSIZE_OFFSET];
1478 if (le32_to_cpup(field) != BRCMF_RAMSIZE_MAGIC)
1479 return;
1480 field++;
1481 newsize = le32_to_cpup(field);
1482
1483 brcmf_dbg(PCIE, "Found ramsize info in FW, adjusting to 0x%x\n",
1484 newsize);
1485 devinfo->ci->ramsize = newsize;
1486}
1487
1488
1489static int
1490brcmf_pcie_init_share_ram_info(struct brcmf_pciedev_info *devinfo,
1491 u32 sharedram_addr)
1492{
1493 struct brcmf_bus *bus = dev_get_drvdata(&devinfo->pdev->dev);
1494 struct brcmf_pcie_shared_info *shared;
1495 u32 addr;
1496
1497 shared = &devinfo->shared;
1498 shared->tcm_base_address = sharedram_addr;
1499
1500 shared->flags = brcmf_pcie_read_tcm32(devinfo, sharedram_addr);
1501 shared->version = (u8)(shared->flags & BRCMF_PCIE_SHARED_VERSION_MASK);
1502 brcmf_dbg(PCIE, "PCIe protocol version %d\n", shared->version);
1503 if ((shared->version > BRCMF_PCIE_MAX_SHARED_VERSION) ||
1504 (shared->version < BRCMF_PCIE_MIN_SHARED_VERSION)) {
1505 brcmf_err(bus, "Unsupported PCIE version %d\n",
1506 shared->version);
1507 return -EINVAL;
1508 }
1509
1510
1511 if (shared->flags & BRCMF_PCIE_SHARED_DMA_INDEX) {
1512 if (shared->flags & BRCMF_PCIE_SHARED_DMA_2B_IDX)
1513 devinfo->dma_idx_sz = sizeof(u16);
1514 else
1515 devinfo->dma_idx_sz = sizeof(u32);
1516 }
1517
1518 addr = sharedram_addr + BRCMF_SHARED_MAX_RXBUFPOST_OFFSET;
1519 shared->max_rxbufpost = brcmf_pcie_read_tcm16(devinfo, addr);
1520 if (shared->max_rxbufpost == 0)
1521 shared->max_rxbufpost = BRCMF_DEF_MAX_RXBUFPOST;
1522
1523 addr = sharedram_addr + BRCMF_SHARED_RX_DATAOFFSET_OFFSET;
1524 shared->rx_dataoffset = brcmf_pcie_read_tcm32(devinfo, addr);
1525
1526 addr = sharedram_addr + BRCMF_SHARED_HTOD_MB_DATA_ADDR_OFFSET;
1527 shared->htod_mb_data_addr = brcmf_pcie_read_tcm32(devinfo, addr);
1528
1529 addr = sharedram_addr + BRCMF_SHARED_DTOH_MB_DATA_ADDR_OFFSET;
1530 shared->dtoh_mb_data_addr = brcmf_pcie_read_tcm32(devinfo, addr);
1531
1532 addr = sharedram_addr + BRCMF_SHARED_RING_INFO_ADDR_OFFSET;
1533 shared->ring_info_addr = brcmf_pcie_read_tcm32(devinfo, addr);
1534
1535 brcmf_dbg(PCIE, "max rx buf post %d, rx dataoffset %d\n",
1536 shared->max_rxbufpost, shared->rx_dataoffset);
1537
1538 brcmf_pcie_bus_console_init(devinfo);
1539
1540 return 0;
1541}
1542
1543
1544static int brcmf_pcie_download_fw_nvram(struct brcmf_pciedev_info *devinfo,
1545 const struct firmware *fw, void *nvram,
1546 u32 nvram_len)
1547{
1548 struct brcmf_bus *bus = dev_get_drvdata(&devinfo->pdev->dev);
1549 u32 sharedram_addr;
1550 u32 sharedram_addr_written;
1551 u32 loop_counter;
1552 int err;
1553 u32 address;
1554 u32 resetintr;
1555
1556 brcmf_dbg(PCIE, "Halt ARM.\n");
1557 err = brcmf_pcie_enter_download_state(devinfo);
1558 if (err)
1559 return err;
1560
1561 brcmf_dbg(PCIE, "Download FW %s\n", devinfo->fw_name);
1562 brcmf_pcie_copy_mem_todev(devinfo, devinfo->ci->rambase,
1563 (void *)fw->data, fw->size);
1564
1565 resetintr = get_unaligned_le32(fw->data);
1566 release_firmware(fw);
1567
1568
1569
1570
1571 brcmf_pcie_write_ram32(devinfo, devinfo->ci->ramsize - 4, 0);
1572
1573 if (nvram) {
1574 brcmf_dbg(PCIE, "Download NVRAM %s\n", devinfo->nvram_name);
1575 address = devinfo->ci->rambase + devinfo->ci->ramsize -
1576 nvram_len;
1577 brcmf_pcie_copy_mem_todev(devinfo, address, nvram, nvram_len);
1578 brcmf_fw_nvram_free(nvram);
1579 } else {
1580 brcmf_dbg(PCIE, "No matching NVRAM file found %s\n",
1581 devinfo->nvram_name);
1582 }
1583
1584 sharedram_addr_written = brcmf_pcie_read_ram32(devinfo,
1585 devinfo->ci->ramsize -
1586 4);
1587 brcmf_dbg(PCIE, "Bring ARM in running state\n");
1588 err = brcmf_pcie_exit_download_state(devinfo, resetintr);
1589 if (err)
1590 return err;
1591
1592 brcmf_dbg(PCIE, "Wait for FW init\n");
1593 sharedram_addr = sharedram_addr_written;
1594 loop_counter = BRCMF_PCIE_FW_UP_TIMEOUT / 50;
1595 while ((sharedram_addr == sharedram_addr_written) && (loop_counter)) {
1596 msleep(50);
1597 sharedram_addr = brcmf_pcie_read_ram32(devinfo,
1598 devinfo->ci->ramsize -
1599 4);
1600 loop_counter--;
1601 }
1602 if (sharedram_addr == sharedram_addr_written) {
1603 brcmf_err(bus, "FW failed to initialize\n");
1604 return -ENODEV;
1605 }
1606 if (sharedram_addr < devinfo->ci->rambase ||
1607 sharedram_addr >= devinfo->ci->rambase + devinfo->ci->ramsize) {
1608 brcmf_err(bus, "Invalid shared RAM address 0x%08x\n",
1609 sharedram_addr);
1610 return -ENODEV;
1611 }
1612 brcmf_dbg(PCIE, "Shared RAM addr: 0x%08x\n", sharedram_addr);
1613
1614 return (brcmf_pcie_init_share_ram_info(devinfo, sharedram_addr));
1615}
1616
1617
1618static int brcmf_pcie_get_resource(struct brcmf_pciedev_info *devinfo)
1619{
1620 struct pci_dev *pdev = devinfo->pdev;
1621 struct brcmf_bus *bus = dev_get_drvdata(&pdev->dev);
1622 int err;
1623 phys_addr_t bar0_addr, bar1_addr;
1624 ulong bar1_size;
1625
1626 err = pci_enable_device(pdev);
1627 if (err) {
1628 brcmf_err(bus, "pci_enable_device failed err=%d\n", err);
1629 return err;
1630 }
1631
1632 pci_set_master(pdev);
1633
1634
1635 bar0_addr = pci_resource_start(pdev, 0);
1636
1637 bar1_addr = pci_resource_start(pdev, 2);
1638
1639 bar1_size = pci_resource_len(pdev, 2);
1640 if ((bar1_size == 0) || (bar1_addr == 0)) {
1641 brcmf_err(bus, "BAR1 Not enabled, device size=%ld, addr=%#016llx\n",
1642 bar1_size, (unsigned long long)bar1_addr);
1643 return -EINVAL;
1644 }
1645
1646 devinfo->regs = ioremap_nocache(bar0_addr, BRCMF_PCIE_REG_MAP_SIZE);
1647 devinfo->tcm = ioremap_nocache(bar1_addr, bar1_size);
1648
1649 if (!devinfo->regs || !devinfo->tcm) {
1650 brcmf_err(bus, "ioremap() failed (%p,%p)\n", devinfo->regs,
1651 devinfo->tcm);
1652 return -EINVAL;
1653 }
1654 brcmf_dbg(PCIE, "Phys addr : reg space = %p base addr %#016llx\n",
1655 devinfo->regs, (unsigned long long)bar0_addr);
1656 brcmf_dbg(PCIE, "Phys addr : mem space = %p base addr %#016llx size 0x%x\n",
1657 devinfo->tcm, (unsigned long long)bar1_addr,
1658 (unsigned int)bar1_size);
1659
1660 return 0;
1661}
1662
1663
1664static void brcmf_pcie_release_resource(struct brcmf_pciedev_info *devinfo)
1665{
1666 if (devinfo->tcm)
1667 iounmap(devinfo->tcm);
1668 if (devinfo->regs)
1669 iounmap(devinfo->regs);
1670
1671 pci_disable_device(devinfo->pdev);
1672}
1673
1674
1675static u32 brcmf_pcie_buscore_prep_addr(const struct pci_dev *pdev, u32 addr)
1676{
1677 u32 ret_addr;
1678
1679 ret_addr = addr & (BRCMF_PCIE_BAR0_REG_SIZE - 1);
1680 addr &= ~(BRCMF_PCIE_BAR0_REG_SIZE - 1);
1681 pci_write_config_dword(pdev, BRCMF_PCIE_BAR0_WINDOW, addr);
1682
1683 return ret_addr;
1684}
1685
1686
1687static u32 brcmf_pcie_buscore_read32(void *ctx, u32 addr)
1688{
1689 struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx;
1690
1691 addr = brcmf_pcie_buscore_prep_addr(devinfo->pdev, addr);
1692 return brcmf_pcie_read_reg32(devinfo, addr);
1693}
1694
1695
1696static void brcmf_pcie_buscore_write32(void *ctx, u32 addr, u32 value)
1697{
1698 struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx;
1699
1700 addr = brcmf_pcie_buscore_prep_addr(devinfo->pdev, addr);
1701 brcmf_pcie_write_reg32(devinfo, addr, value);
1702}
1703
1704
1705static int brcmf_pcie_buscoreprep(void *ctx)
1706{
1707 return brcmf_pcie_get_resource(ctx);
1708}
1709
1710
1711static int brcmf_pcie_buscore_reset(void *ctx, struct brcmf_chip *chip)
1712{
1713 struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx;
1714 u32 val;
1715
1716 devinfo->ci = chip;
1717 brcmf_pcie_reset_device(devinfo);
1718
1719 val = brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT);
1720 if (val != 0xffffffff)
1721 brcmf_pcie_write_reg32(devinfo, BRCMF_PCIE_PCIE2REG_MAILBOXINT,
1722 val);
1723
1724 return 0;
1725}
1726
1727
1728static void brcmf_pcie_buscore_activate(void *ctx, struct brcmf_chip *chip,
1729 u32 rstvec)
1730{
1731 struct brcmf_pciedev_info *devinfo = (struct brcmf_pciedev_info *)ctx;
1732
1733 brcmf_pcie_write_tcm32(devinfo, 0, rstvec);
1734}
1735
1736
1737static const struct brcmf_buscore_ops brcmf_pcie_buscore_ops = {
1738 .prepare = brcmf_pcie_buscoreprep,
1739 .reset = brcmf_pcie_buscore_reset,
1740 .activate = brcmf_pcie_buscore_activate,
1741 .read32 = brcmf_pcie_buscore_read32,
1742 .write32 = brcmf_pcie_buscore_write32,
1743};
1744
1745#define BRCMF_PCIE_FW_CODE 0
1746#define BRCMF_PCIE_FW_NVRAM 1
1747
1748static void brcmf_pcie_setup(struct device *dev, int ret,
1749 struct brcmf_fw_request *fwreq)
1750{
1751 const struct firmware *fw;
1752 void *nvram;
1753 struct brcmf_bus *bus;
1754 struct brcmf_pciedev *pcie_bus_dev;
1755 struct brcmf_pciedev_info *devinfo;
1756 struct brcmf_commonring **flowrings;
1757 u32 i, nvram_len;
1758
1759
1760 if (ret)
1761 goto fail;
1762
1763 bus = dev_get_drvdata(dev);
1764 pcie_bus_dev = bus->bus_priv.pcie;
1765 devinfo = pcie_bus_dev->devinfo;
1766 brcmf_pcie_attach(devinfo);
1767
1768 fw = fwreq->items[BRCMF_PCIE_FW_CODE].binary;
1769 nvram = fwreq->items[BRCMF_PCIE_FW_NVRAM].nv_data.data;
1770 nvram_len = fwreq->items[BRCMF_PCIE_FW_NVRAM].nv_data.len;
1771 kfree(fwreq);
1772
1773 ret = brcmf_chip_get_raminfo(devinfo->ci);
1774 if (ret) {
1775 brcmf_err(bus, "Failed to get RAM info\n");
1776 goto fail;
1777 }
1778
1779
1780
1781
1782
1783
1784 brcmf_pcie_adjust_ramsize(devinfo, (u8 *)fw->data, fw->size);
1785
1786 ret = brcmf_pcie_download_fw_nvram(devinfo, fw, nvram, nvram_len);
1787 if (ret)
1788 goto fail;
1789
1790 devinfo->state = BRCMFMAC_PCIE_STATE_UP;
1791
1792 ret = brcmf_pcie_init_ringbuffers(devinfo);
1793 if (ret)
1794 goto fail;
1795
1796 ret = brcmf_pcie_init_scratchbuffers(devinfo);
1797 if (ret)
1798 goto fail;
1799
1800 brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2);
1801 ret = brcmf_pcie_request_irq(devinfo);
1802 if (ret)
1803 goto fail;
1804
1805
1806 for (i = 0; i < BRCMF_NROF_COMMON_MSGRINGS; i++)
1807 bus->msgbuf->commonrings[i] =
1808 &devinfo->shared.commonrings[i]->commonring;
1809
1810 flowrings = kcalloc(devinfo->shared.max_flowrings, sizeof(*flowrings),
1811 GFP_KERNEL);
1812 if (!flowrings)
1813 goto fail;
1814
1815 for (i = 0; i < devinfo->shared.max_flowrings; i++)
1816 flowrings[i] = &devinfo->shared.flowrings[i].commonring;
1817 bus->msgbuf->flowrings = flowrings;
1818
1819 bus->msgbuf->rx_dataoffset = devinfo->shared.rx_dataoffset;
1820 bus->msgbuf->max_rxbufpost = devinfo->shared.max_rxbufpost;
1821 bus->msgbuf->max_flowrings = devinfo->shared.max_flowrings;
1822
1823 init_waitqueue_head(&devinfo->mbdata_resp_wait);
1824
1825 brcmf_pcie_intr_enable(devinfo);
1826 brcmf_pcie_hostready(devinfo);
1827
1828 ret = brcmf_attach(&devinfo->pdev->dev);
1829 if (ret)
1830 goto fail;
1831
1832 brcmf_pcie_bus_console_read(devinfo, false);
1833
1834 return;
1835
1836fail:
1837 device_release_driver(dev);
1838}
1839
1840static struct brcmf_fw_request *
1841brcmf_pcie_prepare_fw_request(struct brcmf_pciedev_info *devinfo)
1842{
1843 struct brcmf_fw_request *fwreq;
1844 struct brcmf_fw_name fwnames[] = {
1845 { ".bin", devinfo->fw_name },
1846 { ".txt", devinfo->nvram_name },
1847 };
1848
1849 fwreq = brcmf_fw_alloc_request(devinfo->ci->chip, devinfo->ci->chiprev,
1850 brcmf_pcie_fwnames,
1851 ARRAY_SIZE(brcmf_pcie_fwnames),
1852 fwnames, ARRAY_SIZE(fwnames));
1853 if (!fwreq)
1854 return NULL;
1855
1856 fwreq->items[BRCMF_PCIE_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
1857 fwreq->items[BRCMF_PCIE_FW_NVRAM].type = BRCMF_FW_TYPE_NVRAM;
1858 fwreq->items[BRCMF_PCIE_FW_NVRAM].flags = BRCMF_FW_REQF_OPTIONAL;
1859 fwreq->board_type = devinfo->settings->board_type;
1860
1861 fwreq->domain_nr = pci_domain_nr(devinfo->pdev->bus) + 1;
1862 fwreq->bus_nr = devinfo->pdev->bus->number;
1863
1864 return fwreq;
1865}
1866
1867static int
1868brcmf_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
1869{
1870 int ret;
1871 struct brcmf_fw_request *fwreq;
1872 struct brcmf_pciedev_info *devinfo;
1873 struct brcmf_pciedev *pcie_bus_dev;
1874 struct brcmf_bus *bus;
1875
1876 brcmf_dbg(PCIE, "Enter %x:%x\n", pdev->vendor, pdev->device);
1877
1878 ret = -ENOMEM;
1879 devinfo = kzalloc(sizeof(*devinfo), GFP_KERNEL);
1880 if (devinfo == NULL)
1881 return ret;
1882
1883 devinfo->pdev = pdev;
1884 pcie_bus_dev = NULL;
1885 devinfo->ci = brcmf_chip_attach(devinfo, &brcmf_pcie_buscore_ops);
1886 if (IS_ERR(devinfo->ci)) {
1887 ret = PTR_ERR(devinfo->ci);
1888 devinfo->ci = NULL;
1889 goto fail;
1890 }
1891
1892 pcie_bus_dev = kzalloc(sizeof(*pcie_bus_dev), GFP_KERNEL);
1893 if (pcie_bus_dev == NULL) {
1894 ret = -ENOMEM;
1895 goto fail;
1896 }
1897
1898 devinfo->settings = brcmf_get_module_param(&devinfo->pdev->dev,
1899 BRCMF_BUSTYPE_PCIE,
1900 devinfo->ci->chip,
1901 devinfo->ci->chiprev);
1902 if (!devinfo->settings) {
1903 ret = -ENOMEM;
1904 goto fail;
1905 }
1906
1907 bus = kzalloc(sizeof(*bus), GFP_KERNEL);
1908 if (!bus) {
1909 ret = -ENOMEM;
1910 goto fail;
1911 }
1912 bus->msgbuf = kzalloc(sizeof(*bus->msgbuf), GFP_KERNEL);
1913 if (!bus->msgbuf) {
1914 ret = -ENOMEM;
1915 kfree(bus);
1916 goto fail;
1917 }
1918
1919
1920 pcie_bus_dev->devinfo = devinfo;
1921 pcie_bus_dev->bus = bus;
1922 bus->dev = &pdev->dev;
1923 bus->bus_priv.pcie = pcie_bus_dev;
1924 bus->ops = &brcmf_pcie_bus_ops;
1925 bus->proto_type = BRCMF_PROTO_MSGBUF;
1926 bus->chip = devinfo->coreid;
1927 bus->wowl_supported = pci_pme_capable(pdev, PCI_D3hot);
1928 dev_set_drvdata(&pdev->dev, bus);
1929
1930 ret = brcmf_alloc(&devinfo->pdev->dev, devinfo->settings);
1931 if (ret)
1932 goto fail_bus;
1933
1934 fwreq = brcmf_pcie_prepare_fw_request(devinfo);
1935 if (!fwreq) {
1936 ret = -ENOMEM;
1937 goto fail_bus;
1938 }
1939
1940 ret = brcmf_fw_get_firmwares(bus->dev, fwreq, brcmf_pcie_setup);
1941 if (ret < 0) {
1942 kfree(fwreq);
1943 goto fail_bus;
1944 }
1945 return 0;
1946
1947fail_bus:
1948 kfree(bus->msgbuf);
1949 kfree(bus);
1950fail:
1951 brcmf_err(NULL, "failed %x:%x\n", pdev->vendor, pdev->device);
1952 brcmf_pcie_release_resource(devinfo);
1953 if (devinfo->ci)
1954 brcmf_chip_detach(devinfo->ci);
1955 if (devinfo->settings)
1956 brcmf_release_module_param(devinfo->settings);
1957 kfree(pcie_bus_dev);
1958 kfree(devinfo);
1959 return ret;
1960}
1961
1962
1963static void
1964brcmf_pcie_remove(struct pci_dev *pdev)
1965{
1966 struct brcmf_pciedev_info *devinfo;
1967 struct brcmf_bus *bus;
1968
1969 brcmf_dbg(PCIE, "Enter\n");
1970
1971 bus = dev_get_drvdata(&pdev->dev);
1972 if (bus == NULL)
1973 return;
1974
1975 devinfo = bus->bus_priv.pcie->devinfo;
1976
1977 devinfo->state = BRCMFMAC_PCIE_STATE_DOWN;
1978 if (devinfo->ci)
1979 brcmf_pcie_intr_disable(devinfo);
1980
1981 brcmf_detach(&pdev->dev);
1982 brcmf_free(&pdev->dev);
1983
1984 kfree(bus->bus_priv.pcie);
1985 kfree(bus->msgbuf->flowrings);
1986 kfree(bus->msgbuf);
1987 kfree(bus);
1988
1989 brcmf_pcie_release_irq(devinfo);
1990 brcmf_pcie_release_scratchbuffers(devinfo);
1991 brcmf_pcie_release_ringbuffers(devinfo);
1992 brcmf_pcie_reset_device(devinfo);
1993 brcmf_pcie_release_resource(devinfo);
1994
1995 if (devinfo->ci)
1996 brcmf_chip_detach(devinfo->ci);
1997 if (devinfo->settings)
1998 brcmf_release_module_param(devinfo->settings);
1999
2000 kfree(devinfo);
2001 dev_set_drvdata(&pdev->dev, NULL);
2002}
2003
2004
2005#ifdef CONFIG_PM
2006
2007
2008static int brcmf_pcie_pm_enter_D3(struct device *dev)
2009{
2010 struct brcmf_pciedev_info *devinfo;
2011 struct brcmf_bus *bus;
2012
2013 brcmf_dbg(PCIE, "Enter\n");
2014
2015 bus = dev_get_drvdata(dev);
2016 devinfo = bus->bus_priv.pcie->devinfo;
2017
2018 brcmf_bus_change_state(bus, BRCMF_BUS_DOWN);
2019
2020 devinfo->mbdata_completed = false;
2021 brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_D3_INFORM);
2022
2023 wait_event_timeout(devinfo->mbdata_resp_wait, devinfo->mbdata_completed,
2024 BRCMF_PCIE_MBDATA_TIMEOUT);
2025 if (!devinfo->mbdata_completed) {
2026 brcmf_err(bus, "Timeout on response for entering D3 substate\n");
2027 brcmf_bus_change_state(bus, BRCMF_BUS_UP);
2028 return -EIO;
2029 }
2030
2031 devinfo->state = BRCMFMAC_PCIE_STATE_DOWN;
2032
2033 return 0;
2034}
2035
2036
2037static int brcmf_pcie_pm_leave_D3(struct device *dev)
2038{
2039 struct brcmf_pciedev_info *devinfo;
2040 struct brcmf_bus *bus;
2041 struct pci_dev *pdev;
2042 int err;
2043
2044 brcmf_dbg(PCIE, "Enter\n");
2045
2046 bus = dev_get_drvdata(dev);
2047 devinfo = bus->bus_priv.pcie->devinfo;
2048 brcmf_dbg(PCIE, "Enter, dev=%p, bus=%p\n", dev, bus);
2049
2050
2051 if (brcmf_pcie_read_reg32(devinfo, BRCMF_PCIE_PCIE2REG_INTMASK) != 0) {
2052 brcmf_dbg(PCIE, "Try to wakeup device....\n");
2053 if (brcmf_pcie_send_mb_data(devinfo, BRCMF_H2D_HOST_D0_INFORM))
2054 goto cleanup;
2055 brcmf_dbg(PCIE, "Hot resume, continue....\n");
2056 devinfo->state = BRCMFMAC_PCIE_STATE_UP;
2057 brcmf_pcie_select_core(devinfo, BCMA_CORE_PCIE2);
2058 brcmf_bus_change_state(bus, BRCMF_BUS_UP);
2059 brcmf_pcie_intr_enable(devinfo);
2060 brcmf_pcie_hostready(devinfo);
2061 return 0;
2062 }
2063
2064cleanup:
2065 brcmf_chip_detach(devinfo->ci);
2066 devinfo->ci = NULL;
2067 pdev = devinfo->pdev;
2068 brcmf_pcie_remove(pdev);
2069
2070 err = brcmf_pcie_probe(pdev, NULL);
2071 if (err)
2072 brcmf_err(bus, "probe after resume failed, err=%d\n", err);
2073
2074 return err;
2075}
2076
2077
2078static const struct dev_pm_ops brcmf_pciedrvr_pm = {
2079 .suspend = brcmf_pcie_pm_enter_D3,
2080 .resume = brcmf_pcie_pm_leave_D3,
2081 .freeze = brcmf_pcie_pm_enter_D3,
2082 .restore = brcmf_pcie_pm_leave_D3,
2083};
2084
2085
2086#endif
2087
2088
2089#define BRCMF_PCIE_DEVICE(dev_id) { BRCM_PCIE_VENDOR_ID_BROADCOM, dev_id,\
2090 PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_NETWORK_OTHER << 8, 0xffff00, 0 }
2091#define BRCMF_PCIE_DEVICE_SUB(dev_id, subvend, subdev) { \
2092 BRCM_PCIE_VENDOR_ID_BROADCOM, dev_id,\
2093 subvend, subdev, PCI_CLASS_NETWORK_OTHER << 8, 0xffff00, 0 }
2094
2095static const struct pci_device_id brcmf_pcie_devid_table[] = {
2096 BRCMF_PCIE_DEVICE(BRCM_PCIE_4350_DEVICE_ID),
2097 BRCMF_PCIE_DEVICE_SUB(0x4355, BRCM_PCIE_VENDOR_ID_BROADCOM, 0x4355),
2098 BRCMF_PCIE_DEVICE(BRCM_PCIE_4354_RAW_DEVICE_ID),
2099 BRCMF_PCIE_DEVICE(BRCM_PCIE_4356_DEVICE_ID),
2100 BRCMF_PCIE_DEVICE(BRCM_PCIE_43567_DEVICE_ID),
2101 BRCMF_PCIE_DEVICE(BRCM_PCIE_43570_DEVICE_ID),
2102 BRCMF_PCIE_DEVICE(BRCM_PCIE_4358_DEVICE_ID),
2103 BRCMF_PCIE_DEVICE(BRCM_PCIE_4359_DEVICE_ID),
2104 BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_DEVICE_ID),
2105 BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_2G_DEVICE_ID),
2106 BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_5G_DEVICE_ID),
2107 BRCMF_PCIE_DEVICE(BRCM_PCIE_43602_RAW_DEVICE_ID),
2108 BRCMF_PCIE_DEVICE(BRCM_PCIE_4365_DEVICE_ID),
2109 BRCMF_PCIE_DEVICE(BRCM_PCIE_4365_2G_DEVICE_ID),
2110 BRCMF_PCIE_DEVICE(BRCM_PCIE_4365_5G_DEVICE_ID),
2111 BRCMF_PCIE_DEVICE_SUB(0x4365, BRCM_PCIE_VENDOR_ID_BROADCOM, 0x4365),
2112 BRCMF_PCIE_DEVICE(BRCM_PCIE_4366_DEVICE_ID),
2113 BRCMF_PCIE_DEVICE(BRCM_PCIE_4366_2G_DEVICE_ID),
2114 BRCMF_PCIE_DEVICE(BRCM_PCIE_4366_5G_DEVICE_ID),
2115 BRCMF_PCIE_DEVICE(BRCM_PCIE_4371_DEVICE_ID),
2116 { }
2117};
2118
2119
2120MODULE_DEVICE_TABLE(pci, brcmf_pcie_devid_table);
2121
2122
2123static struct pci_driver brcmf_pciedrvr = {
2124 .node = {},
2125 .name = KBUILD_MODNAME,
2126 .id_table = brcmf_pcie_devid_table,
2127 .probe = brcmf_pcie_probe,
2128 .remove = brcmf_pcie_remove,
2129#ifdef CONFIG_PM
2130 .driver.pm = &brcmf_pciedrvr_pm,
2131#endif
2132 .driver.coredump = brcmf_dev_coredump,
2133};
2134
2135
2136void brcmf_pcie_register(void)
2137{
2138 int err;
2139
2140 brcmf_dbg(PCIE, "Enter\n");
2141 err = pci_register_driver(&brcmf_pciedrvr);
2142 if (err)
2143 brcmf_err(NULL, "PCIE driver registration failed, err=%d\n",
2144 err);
2145}
2146
2147
2148void brcmf_pcie_exit(void)
2149{
2150 brcmf_dbg(PCIE, "Enter\n");
2151 pci_unregister_driver(&brcmf_pciedrvr);
2152}
2153
