4 #include <linux/config.h>
6 #define PCILYNX_DRIVER_NAME "pcilynx"
7 #define PCILYNX_MAJOR 177
9 #define PCILYNX_MINOR_AUX_START 0
10 #define PCILYNX_MINOR_ROM_START 16
11 #define PCILYNX_MINOR_RAM_START 32
13 #define PCILYNX_MAX_REGISTER 0xfff
14 #define PCILYNX_MAX_MEMORY 0xffff
16 #define PCI_DEVICE_ID_TI_PCILYNX 0x8000
17 #define MAX_PCILYNX_CARDS 4
18 #define LOCALRAM_SIZE 4096
20 #define NUM_ISORCV_PCL 4
21 #define MAX_ISORCV_SIZE 2048
22 #define ISORCV_PER_PAGE (PAGE_SIZE / MAX_ISORCV_SIZE)
23 #define ISORCV_PAGES (NUM_ISORCV_PCL / ISORCV_PER_PAGE)
25 #define CHANNEL_LOCALBUS 0
26 #define CHANNEL_ASYNC_RCV 1
27 #define CHANNEL_ISO_RCV 2
28 #define CHANNEL_ASYNC_SEND 3
29 #define CHANNEL_ISO_SEND 4
31 #define PCILYNX_CONFIG_ROM_LENGTH 1024
36 int id; /* sequential card number */
48 enum { clear, have_intr, have_aux_buf, have_pcl_mem,
49 have_1394_buffers, have_iomappings, is_host } state;
51 /* remapped memory spaces */
52 void __iomem *registers;
53 void __iomem *local_rom;
54 void __iomem *local_ram;
55 void __iomem *aux_port;
56 quadlet_t bus_info_block[5];
59 * use local RAM of LOCALRAM_SIZE bytes for PCLs, which allows for
60 * LOCALRAM_SIZE * 8 PCLs (each sized 128 bytes);
61 * the following is an allocation bitmap
63 u8 pcl_bmap[LOCALRAM_SIZE / 1024];
65 /* point to PCLs memory area if needed */
67 dma_addr_t pcl_mem_dma;
69 /* PCLs for local mem / aux transfers */
72 /* IEEE-1394 part follows */
73 struct hpsb_host *host;
79 spinlock_t phy_reg_lock;
81 pcl_t rcv_pcl_start, rcv_pcl;
83 dma_addr_t rcv_page_dma;
86 struct lynx_send_data {
88 struct list_head queue;
89 struct list_head pcl_queue; /* this queue contains at most one packet */
90 spinlock_t queue_lock;
91 dma_addr_t header_dma, data_dma;
96 pcl_t pcl[NUM_ISORCV_PCL];
97 u32 stat[NUM_ISORCV_PCL];
98 void *page[ISORCV_PAGES];
99 dma_addr_t page_dma[ISORCV_PAGES];
102 int next, last, used, running;
103 struct tasklet_struct tq;
107 u32 i2c_driven_state; /* the state we currently drive the Serial EEPROM Control register */
110 /* the per-file data structure for mem space access */
112 struct ti_lynx *lynx;
114 atomic_t aux_intr_last_seen;
115 /* enum values are the same as LBUS_ADDR_SEL_* values below */
116 enum { rom = 0x10000, aux = 0x20000, ram = 0 } type;
122 * Register read and write helper functions.
124 static inline void reg_write(const struct ti_lynx *lynx, int offset, u32 data)
126 writel(data, lynx->registers + offset);
129 static inline u32 reg_read(const struct ti_lynx *lynx, int offset)
131 return readl(lynx->registers + offset);
134 static inline void reg_set_bits(const struct ti_lynx *lynx, int offset,
137 reg_write(lynx, offset, (reg_read(lynx, offset) | mask));
140 static inline void reg_clear_bits(const struct ti_lynx *lynx, int offset,
143 reg_write(lynx, offset, (reg_read(lynx, offset) & ~mask));
148 /* chip register definitions follow */
150 #define PCI_LATENCY_CACHELINE 0x0c
152 #define MISC_CONTROL 0x40
153 #define MISC_CONTROL_SWRESET (1<<0)
155 #define SERIAL_EEPROM_CONTROL 0x44
157 #define PCI_INT_STATUS 0x48
158 #define PCI_INT_ENABLE 0x4c
159 /* status and enable have identical bit numbers */
160 #define PCI_INT_INT_PEND (1<<31)
161 #define PCI_INT_FORCED_INT (1<<30)
162 #define PCI_INT_SLV_ADR_PERR (1<<28)
163 #define PCI_INT_SLV_DAT_PERR (1<<27)
164 #define PCI_INT_MST_DAT_PERR (1<<26)
165 #define PCI_INT_MST_DEV_TIMEOUT (1<<25)
166 #define PCI_INT_INTERNAL_SLV_TIMEOUT (1<<23)
167 #define PCI_INT_AUX_TIMEOUT (1<<18)
168 #define PCI_INT_AUX_INT (1<<17)
169 #define PCI_INT_1394 (1<<16)
170 #define PCI_INT_DMA4_PCL (1<<9)
171 #define PCI_INT_DMA4_HLT (1<<8)
172 #define PCI_INT_DMA3_PCL (1<<7)
173 #define PCI_INT_DMA3_HLT (1<<6)
174 #define PCI_INT_DMA2_PCL (1<<5)
175 #define PCI_INT_DMA2_HLT (1<<4)
176 #define PCI_INT_DMA1_PCL (1<<3)
177 #define PCI_INT_DMA1_HLT (1<<2)
178 #define PCI_INT_DMA0_PCL (1<<1)
179 #define PCI_INT_DMA0_HLT (1<<0)
180 /* all DMA interrupts combined: */
181 #define PCI_INT_DMA_ALL 0x3ff
183 #define PCI_INT_DMA_HLT(chan) (1 << (chan * 2))
184 #define PCI_INT_DMA_PCL(chan) (1 << (chan * 2 + 1))
186 #define LBUS_ADDR 0xb4
187 #define LBUS_ADDR_SEL_RAM (0x0<<16)
188 #define LBUS_ADDR_SEL_ROM (0x1<<16)
189 #define LBUS_ADDR_SEL_AUX (0x2<<16)
190 #define LBUS_ADDR_SEL_ZV (0x3<<16)
192 #define GPIO_CTRL_A 0xb8
193 #define GPIO_CTRL_B 0xbc
194 #define GPIO_DATA_BASE 0xc0
196 #define DMA_BREG(base, chan) (base + chan * 0x20)
197 #define DMA_SREG(base, chan) (base + chan * 0x10)
199 #define DMA0_PREV_PCL 0x100
200 #define DMA1_PREV_PCL 0x120
201 #define DMA2_PREV_PCL 0x140
202 #define DMA3_PREV_PCL 0x160
203 #define DMA4_PREV_PCL 0x180
204 #define DMA_PREV_PCL(chan) (DMA_BREG(DMA0_PREV_PCL, chan))
206 #define DMA0_CURRENT_PCL 0x104
207 #define DMA1_CURRENT_PCL 0x124
208 #define DMA2_CURRENT_PCL 0x144
209 #define DMA3_CURRENT_PCL 0x164
210 #define DMA4_CURRENT_PCL 0x184
211 #define DMA_CURRENT_PCL(chan) (DMA_BREG(DMA0_CURRENT_PCL, chan))
213 #define DMA0_CHAN_STAT 0x10c
214 #define DMA1_CHAN_STAT 0x12c
215 #define DMA2_CHAN_STAT 0x14c
216 #define DMA3_CHAN_STAT 0x16c
217 #define DMA4_CHAN_STAT 0x18c
218 #define DMA_CHAN_STAT(chan) (DMA_BREG(DMA0_CHAN_STAT, chan))
219 /* CHAN_STATUS registers share bits */
220 #define DMA_CHAN_STAT_SELFID (1<<31)
221 #define DMA_CHAN_STAT_ISOPKT (1<<30)
222 #define DMA_CHAN_STAT_PCIERR (1<<29)
223 #define DMA_CHAN_STAT_PKTERR (1<<28)
224 #define DMA_CHAN_STAT_PKTCMPL (1<<27)
225 #define DMA_CHAN_STAT_SPECIALACK (1<<14)
228 #define DMA0_CHAN_CTRL 0x110
229 #define DMA1_CHAN_CTRL 0x130
230 #define DMA2_CHAN_CTRL 0x150
231 #define DMA3_CHAN_CTRL 0x170
232 #define DMA4_CHAN_CTRL 0x190
233 #define DMA_CHAN_CTRL(chan) (DMA_BREG(DMA0_CHAN_CTRL, chan))
234 /* CHAN_CTRL registers share bits */
235 #define DMA_CHAN_CTRL_ENABLE (1<<31)
236 #define DMA_CHAN_CTRL_BUSY (1<<30)
237 #define DMA_CHAN_CTRL_LINK (1<<29)
239 #define DMA0_READY 0x114
240 #define DMA1_READY 0x134
241 #define DMA2_READY 0x154
242 #define DMA3_READY 0x174
243 #define DMA4_READY 0x194
244 #define DMA_READY(chan) (DMA_BREG(DMA0_READY, chan))
246 #define DMA_GLOBAL_REGISTER 0x908
248 #define FIFO_SIZES 0xa00
250 #define FIFO_CONTROL 0xa10
251 #define FIFO_CONTROL_GRF_FLUSH (1<<4)
252 #define FIFO_CONTROL_ITF_FLUSH (1<<3)
253 #define FIFO_CONTROL_ATF_FLUSH (1<<2)
255 #define FIFO_XMIT_THRESHOLD 0xa14
257 #define DMA0_WORD0_CMP_VALUE 0xb00
258 #define DMA1_WORD0_CMP_VALUE 0xb10
259 #define DMA2_WORD0_CMP_VALUE 0xb20
260 #define DMA3_WORD0_CMP_VALUE 0xb30
261 #define DMA4_WORD0_CMP_VALUE 0xb40
262 #define DMA_WORD0_CMP_VALUE(chan) (DMA_SREG(DMA0_WORD0_CMP_VALUE, chan))
264 #define DMA0_WORD0_CMP_ENABLE 0xb04
265 #define DMA1_WORD0_CMP_ENABLE 0xb14
266 #define DMA2_WORD0_CMP_ENABLE 0xb24
267 #define DMA3_WORD0_CMP_ENABLE 0xb34
268 #define DMA4_WORD0_CMP_ENABLE 0xb44
269 #define DMA_WORD0_CMP_ENABLE(chan) (DMA_SREG(DMA0_WORD0_CMP_ENABLE,chan))
271 #define DMA0_WORD1_CMP_VALUE 0xb08
272 #define DMA1_WORD1_CMP_VALUE 0xb18
273 #define DMA2_WORD1_CMP_VALUE 0xb28
274 #define DMA3_WORD1_CMP_VALUE 0xb38
275 #define DMA4_WORD1_CMP_VALUE 0xb48
276 #define DMA_WORD1_CMP_VALUE(chan) (DMA_SREG(DMA0_WORD1_CMP_VALUE, chan))
278 #define DMA0_WORD1_CMP_ENABLE 0xb0c
279 #define DMA1_WORD1_CMP_ENABLE 0xb1c
280 #define DMA2_WORD1_CMP_ENABLE 0xb2c
281 #define DMA3_WORD1_CMP_ENABLE 0xb3c
282 #define DMA4_WORD1_CMP_ENABLE 0xb4c
283 #define DMA_WORD1_CMP_ENABLE(chan) (DMA_SREG(DMA0_WORD1_CMP_ENABLE,chan))
284 /* word 1 compare enable flags */
285 #define DMA_WORD1_CMP_MATCH_OTHERBUS (1<<15)
286 #define DMA_WORD1_CMP_MATCH_BROADCAST (1<<14)
287 #define DMA_WORD1_CMP_MATCH_BUS_BCAST (1<<13)
288 #define DMA_WORD1_CMP_MATCH_LOCAL_NODE (1<<12)
289 #define DMA_WORD1_CMP_MATCH_EXACT (1<<11)
290 #define DMA_WORD1_CMP_ENABLE_SELF_ID (1<<10)
291 #define DMA_WORD1_CMP_ENABLE_MASTER (1<<8)
293 #define LINK_ID 0xf00
294 #define LINK_ID_BUS(id) (id<<22)
295 #define LINK_ID_NODE(id) (id<<16)
297 #define LINK_CONTROL 0xf04
298 #define LINK_CONTROL_BUSY (1<<29)
299 #define LINK_CONTROL_TX_ISO_EN (1<<26)
300 #define LINK_CONTROL_RX_ISO_EN (1<<25)
301 #define LINK_CONTROL_TX_ASYNC_EN (1<<24)
302 #define LINK_CONTROL_RX_ASYNC_EN (1<<23)
303 #define LINK_CONTROL_RESET_TX (1<<21)
304 #define LINK_CONTROL_RESET_RX (1<<20)
305 #define LINK_CONTROL_CYCMASTER (1<<11)
306 #define LINK_CONTROL_CYCSOURCE (1<<10)
307 #define LINK_CONTROL_CYCTIMEREN (1<<9)
308 #define LINK_CONTROL_RCV_CMP_VALID (1<<7)
309 #define LINK_CONTROL_SNOOP_ENABLE (1<<6)
311 #define CYCLE_TIMER 0xf08
313 #define LINK_PHY 0xf0c
314 #define LINK_PHY_READ (1<<31)
315 #define LINK_PHY_WRITE (1<<30)
316 #define LINK_PHY_ADDR(addr) (addr<<24)
317 #define LINK_PHY_WDATA(data) (data<<16)
318 #define LINK_PHY_RADDR(addr) (addr<<8)
321 #define LINK_INT_STATUS 0xf14
322 #define LINK_INT_ENABLE 0xf18
323 /* status and enable have identical bit numbers */
324 #define LINK_INT_LINK_INT (1<<31)
325 #define LINK_INT_PHY_TIMEOUT (1<<30)
326 #define LINK_INT_PHY_REG_RCVD (1<<29)
327 #define LINK_INT_PHY_BUSRESET (1<<28)
328 #define LINK_INT_TX_RDY (1<<26)
329 #define LINK_INT_RX_DATA_RDY (1<<25)
330 #define LINK_INT_ISO_STUCK (1<<20)
331 #define LINK_INT_ASYNC_STUCK (1<<19)
332 #define LINK_INT_SENT_REJECT (1<<17)
333 #define LINK_INT_HDR_ERR (1<<16)
334 #define LINK_INT_TX_INVALID_TC (1<<15)
335 #define LINK_INT_CYC_SECOND (1<<11)
336 #define LINK_INT_CYC_START (1<<10)
337 #define LINK_INT_CYC_DONE (1<<9)
338 #define LINK_INT_CYC_PENDING (1<<8)
339 #define LINK_INT_CYC_LOST (1<<7)
340 #define LINK_INT_CYC_ARB_FAILED (1<<6)
341 #define LINK_INT_GRF_OVERFLOW (1<<5)
342 #define LINK_INT_ITF_UNDERFLOW (1<<4)
343 #define LINK_INT_ATF_UNDERFLOW (1<<3)
344 #define LINK_INT_ISOARB_FAILED (1<<0)
347 #define PHY_VENDORID_TI 0x800028
348 #define PHY_PRODUCTID_TSB41LV03 0x000000
351 /* this is the physical layout of a PCL, its size is 128 bytes */
354 u32 async_error_next;
357 u32 remaining_transfer_count;
358 u32 next_data_buffer;
362 } buffer[13] __attribute__ ((packed));
363 } __attribute__ ((packed));
365 #include <linux/stddef.h>
366 #define pcloffs(MEMBER) (offsetof(struct ti_pcl, MEMBER))
369 static inline void put_pcl(const struct ti_lynx *lynx, pcl_t pclid,
370 const struct ti_pcl *pcl)
372 memcpy_le32((u32 *)(lynx->pcl_mem + pclid * sizeof(struct ti_pcl)),
373 (u32 *)pcl, sizeof(struct ti_pcl));
376 static inline void get_pcl(const struct ti_lynx *lynx, pcl_t pclid,
379 memcpy_le32((u32 *)pcl,
380 (u32 *)(lynx->pcl_mem + pclid * sizeof(struct ti_pcl)),
381 sizeof(struct ti_pcl));
384 static inline u32 pcl_bus(const struct ti_lynx *lynx, pcl_t pclid)
386 return lynx->pcl_mem_dma + pclid * sizeof(struct ti_pcl);
390 #if defined (__BIG_ENDIAN)
391 typedef struct ti_pcl pcltmp_t;
393 static inline struct ti_pcl *edit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
396 get_pcl(lynx, pclid, tmp);
400 static inline void commit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
403 put_pcl(lynx, pclid, tmp);
407 typedef int pcltmp_t; /* just a dummy */
409 static inline struct ti_pcl *edit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
412 return lynx->pcl_mem + pclid * sizeof(struct ti_pcl);
415 static inline void commit_pcl(const struct ti_lynx *lynx, pcl_t pclid,
422 static inline void run_sub_pcl(const struct ti_lynx *lynx, pcl_t pclid, int idx,
425 reg_write(lynx, DMA0_CURRENT_PCL + dmachan * 0x20,
426 pcl_bus(lynx, pclid) + idx * 4);
427 reg_write(lynx, DMA0_CHAN_CTRL + dmachan * 0x20,
428 DMA_CHAN_CTRL_ENABLE | DMA_CHAN_CTRL_LINK);
431 static inline void run_pcl(const struct ti_lynx *lynx, pcl_t pclid, int dmachan)
433 run_sub_pcl(lynx, pclid, 0, dmachan);
436 #define PCL_NEXT_INVALID (1<<0)
438 /* transfer commands */
439 #define PCL_CMD_RCV (0x1<<24)
440 #define PCL_CMD_RCV_AND_UPDATE (0xa<<24)
441 #define PCL_CMD_XMT (0x2<<24)
442 #define PCL_CMD_UNFXMT (0xc<<24)
443 #define PCL_CMD_PCI_TO_LBUS (0x8<<24)
444 #define PCL_CMD_LBUS_TO_PCI (0x9<<24)
447 #define PCL_CMD_NOP (0x0<<24)
448 #define PCL_CMD_LOAD (0x3<<24)
449 #define PCL_CMD_STOREQ (0x4<<24)
450 #define PCL_CMD_STORED (0xb<<24)
451 #define PCL_CMD_STORE0 (0x5<<24)
452 #define PCL_CMD_STORE1 (0x6<<24)
453 #define PCL_CMD_COMPARE (0xe<<24)
454 #define PCL_CMD_SWAP_COMPARE (0xf<<24)
455 #define PCL_CMD_ADD (0xd<<24)
456 #define PCL_CMD_BRANCH (0x7<<24)
458 /* BRANCH condition codes */
459 #define PCL_COND_DMARDY_SET (0x1<<20)
460 #define PCL_COND_DMARDY_CLEAR (0x2<<20)
462 #define PCL_GEN_INTR (1<<19)
463 #define PCL_LAST_BUFF (1<<18)
464 #define PCL_LAST_CMD (PCL_LAST_BUFF)
465 #define PCL_WAITSTAT (1<<17)
466 #define PCL_BIGENDIAN (1<<16)
467 #define PCL_ISOMODE (1<<12)