2 * MPC8xx Communication Processor Module.
3 * Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
5 * (C) Copyright 2000-2006
6 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
8 * This file contains structures and information for the communication
9 * processor channels. Some CPM control and status is available
10 * through the MPC8xx internal memory map. See immap.h for details.
11 * This file only contains what I need for the moment, not the total
12 * CPM capabilities. I (or someone else) will add definitions as they
19 #include <asm/8xx_immap.h>
21 /* CPM Command register.
23 #define CPM_CR_RST ((ushort)0x8000)
24 #define CPM_CR_OPCODE ((ushort)0x0f00)
25 #define CPM_CR_CHAN ((ushort)0x00f0)
26 #define CPM_CR_FLG ((ushort)0x0001)
28 /* Some commands (there are more...later)
30 #define CPM_CR_INIT_TRX ((ushort)0x0000)
31 #define CPM_CR_INIT_RX ((ushort)0x0001)
32 #define CPM_CR_INIT_TX ((ushort)0x0002)
33 #define CPM_CR_HUNT_MODE ((ushort)0x0003)
34 #define CPM_CR_STOP_TX ((ushort)0x0004)
35 #define CPM_CR_RESTART_TX ((ushort)0x0006)
36 #define CPM_CR_SET_GADDR ((ushort)0x0008)
40 #define CPM_CR_CH_SCC1 ((ushort)0x0000)
41 #define CPM_CR_CH_I2C ((ushort)0x0001) /* I2C and IDMA1 */
42 #define CPM_CR_CH_SCC2 ((ushort)0x0004)
43 #define CPM_CR_CH_SPI ((ushort)0x0005) /* SPI/IDMA2/Timers */
44 #define CPM_CR_CH_SCC3 ((ushort)0x0008)
45 #define CPM_CR_CH_SMC1 ((ushort)0x0009) /* SMC1 / DSP1 */
46 #define CPM_CR_CH_SCC4 ((ushort)0x000c)
47 #define CPM_CR_CH_SMC2 ((ushort)0x000d) /* SMC2 / DSP2 */
49 #define mk_cr_cmd(CH, CMD) ((CMD << 8) | (CH << 4))
52 * DPRAM defines and allocation functions
54 #define CPM_SERIAL_BASE 0x0800
55 #define CPM_I2C_BASE 0x0820
56 #define CPM_SPI_BASE 0x0840
57 #define CPM_FEC_BASE 0x0860
58 #define CPM_SERIAL2_BASE 0x08E0
59 #define CPM_SCC_BASE 0x0900
60 #define CPM_POST_BASE 0x0980
61 #define CPM_WLKBD_BASE 0x0a00
63 #define BD_IIC_START ((uint) 0x0400) /* <- please use CPM_I2C_BASE !! */
65 /* Export the base address of the communication processor registers
68 extern cpm8xx_t *cpmp; /* Pointer to comm processor */
70 /* Buffer descriptors used by many of the CPM protocols.
72 typedef struct cpm_buf_desc {
73 ushort cbd_sc; /* Status and Control */
74 ushort cbd_datlen; /* Data length in buffer */
75 uint cbd_bufaddr; /* Buffer address in host memory */
78 #define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */
79 #define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */
80 #define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */
81 #define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */
82 #define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */
83 #define BD_SC_TC ((ushort)0x0400) /* Transmit CRC */
84 #define BD_SC_CM ((ushort)0x0200) /* Continuous mode */
85 #define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */
86 #define BD_SC_P ((ushort)0x0100) /* xmt preamble */
87 #define BD_SC_BR ((ushort)0x0020) /* Break received */
88 #define BD_SC_FR ((ushort)0x0010) /* Framing error */
89 #define BD_SC_PR ((ushort)0x0008) /* Parity error */
90 #define BD_SC_OV ((ushort)0x0002) /* Overrun */
91 #define BD_SC_CD ((ushort)0x0001) /* Carrier Detect lost */
93 /* Parameter RAM offsets.
95 #define PROFF_SCC1 ((uint)0x0000)
96 #define PROFF_IIC ((uint)0x0080)
97 #define PROFF_REVNUM ((uint)0x00b0)
98 #define PROFF_SCC2 ((uint)0x0100)
99 #define PROFF_SPI ((uint)0x0180)
100 #define PROFF_SCC3 ((uint)0x0200)
101 #define PROFF_SMC1 ((uint)0x0280)
102 #define PROFF_SCC4 ((uint)0x0300)
103 #define PROFF_SMC2 ((uint)0x0380)
105 /* Define enough so I can at least use the serial port as a UART.
107 typedef struct smc_uart {
108 ushort smc_rbase; /* Rx Buffer descriptor base address */
109 ushort smc_tbase; /* Tx Buffer descriptor base address */
110 u_char smc_rfcr; /* Rx function code */
111 u_char smc_tfcr; /* Tx function code */
112 ushort smc_mrblr; /* Max receive buffer length */
113 uint smc_rstate; /* Internal */
114 uint smc_idp; /* Internal */
115 ushort smc_rbptr; /* Internal */
116 ushort smc_ibc; /* Internal */
117 uint smc_rxtmp; /* Internal */
118 uint smc_tstate; /* Internal */
119 uint smc_tdp; /* Internal */
120 ushort smc_tbptr; /* Internal */
121 ushort smc_tbc; /* Internal */
122 uint smc_txtmp; /* Internal */
123 ushort smc_maxidl; /* Maximum idle characters */
124 ushort smc_tmpidl; /* Temporary idle counter */
125 ushort smc_brklen; /* Last received break length */
126 ushort smc_brkec; /* rcv'd break condition counter */
127 ushort smc_brkcr; /* xmt break count register */
128 ushort smc_rmask; /* Temporary bit mask */
130 ushort smc_rpbase; /* Relocation pointer */
133 /* Function code bits.
135 #define SMC_EB ((u_char)0x10) /* Set big endian byte order */
137 /* SMC uart mode register.
139 #define SMCMR_REN ((ushort)0x0001)
140 #define SMCMR_TEN ((ushort)0x0002)
141 #define SMCMR_DM ((ushort)0x000c)
142 #define SMCMR_SM_GCI ((ushort)0x0000)
143 #define SMCMR_SM_UART ((ushort)0x0020)
144 #define SMCMR_SM_TRANS ((ushort)0x0030)
145 #define SMCMR_SM_MASK ((ushort)0x0030)
146 #define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */
147 #define SMCMR_REVD SMCMR_PM_EVEN
148 #define SMCMR_PEN ((ushort)0x0200) /* Parity enable */
149 #define SMCMR_BS SMCMR_PEN
150 #define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */
151 #define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */
152 #define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK)
154 /* SMC2 as Centronics parallel printer. It is half duplex, in that
155 * it can only receive or transmit. The parameter ram values for
156 * each direction are either unique or properly overlap, so we can
157 * include them in one structure.
159 typedef struct smc_centronics {
177 ushort scent_character1;
178 ushort scent_character2;
179 ushort scent_character3;
180 ushort scent_character4;
181 ushort scent_character5;
182 ushort scent_character6;
183 ushort scent_character7;
184 ushort scent_character8;
189 /* Centronics Status Mask Register.
191 #define SMC_CENT_F ((u_char)0x08)
192 #define SMC_CENT_PE ((u_char)0x04)
193 #define SMC_CENT_S ((u_char)0x02)
195 /* SMC Event and Mask register.
197 #define SMCM_BRKE ((unsigned char)0x40) /* When in UART Mode */
198 #define SMCM_BRK ((unsigned char)0x10) /* When in UART Mode */
199 #define SMCM_TXE ((unsigned char)0x10) /* When in Transparent Mode */
200 #define SMCM_BSY ((unsigned char)0x04)
201 #define SMCM_TX ((unsigned char)0x02)
202 #define SMCM_RX ((unsigned char)0x01)
204 /* Baud rate generators.
206 #define CPM_BRG_RST ((uint)0x00020000)
207 #define CPM_BRG_EN ((uint)0x00010000)
208 #define CPM_BRG_EXTC_INT ((uint)0x00000000)
209 #define CPM_BRG_EXTC_CLK2 ((uint)0x00004000)
210 #define CPM_BRG_EXTC_CLK6 ((uint)0x00008000)
211 #define CPM_BRG_ATB ((uint)0x00002000)
212 #define CPM_BRG_CD_MASK ((uint)0x00001ffe)
213 #define CPM_BRG_DIV16 ((uint)0x00000001)
215 /* SI Clock Route Register
217 #define SICR_RCLK_SCC1_BRG1 ((uint)0x00000000)
218 #define SICR_TCLK_SCC1_BRG1 ((uint)0x00000000)
219 #define SICR_RCLK_SCC2_BRG2 ((uint)0x00000800)
220 #define SICR_TCLK_SCC2_BRG2 ((uint)0x00000100)
221 #define SICR_RCLK_SCC3_BRG3 ((uint)0x00100000)
222 #define SICR_TCLK_SCC3_BRG3 ((uint)0x00020000)
223 #define SICR_RCLK_SCC4_BRG4 ((uint)0x18000000)
224 #define SICR_TCLK_SCC4_BRG4 ((uint)0x03000000)
228 #define SCC_GSMRH_IRP ((uint)0x00040000)
229 #define SCC_GSMRH_GDE ((uint)0x00010000)
230 #define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000)
231 #define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000)
232 #define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000)
233 #define SCC_GSMRH_REVD ((uint)0x00002000)
234 #define SCC_GSMRH_TRX ((uint)0x00001000)
235 #define SCC_GSMRH_TTX ((uint)0x00000800)
236 #define SCC_GSMRH_CDP ((uint)0x00000400)
237 #define SCC_GSMRH_CTSP ((uint)0x00000200)
238 #define SCC_GSMRH_CDS ((uint)0x00000100)
239 #define SCC_GSMRH_CTSS ((uint)0x00000080)
240 #define SCC_GSMRH_TFL ((uint)0x00000040)
241 #define SCC_GSMRH_RFW ((uint)0x00000020)
242 #define SCC_GSMRH_TXSY ((uint)0x00000010)
243 #define SCC_GSMRH_SYNL16 ((uint)0x0000000c)
244 #define SCC_GSMRH_SYNL8 ((uint)0x00000008)
245 #define SCC_GSMRH_SYNL4 ((uint)0x00000004)
246 #define SCC_GSMRH_RTSM ((uint)0x00000002)
247 #define SCC_GSMRH_RSYN ((uint)0x00000001)
249 #define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */
250 #define SCC_GSMRL_EDGE_NONE ((uint)0x60000000)
251 #define SCC_GSMRL_EDGE_NEG ((uint)0x40000000)
252 #define SCC_GSMRL_EDGE_POS ((uint)0x20000000)
253 #define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000)
254 #define SCC_GSMRL_TCI ((uint)0x10000000)
255 #define SCC_GSMRL_TSNC_3 ((uint)0x0c000000)
256 #define SCC_GSMRL_TSNC_4 ((uint)0x08000000)
257 #define SCC_GSMRL_TSNC_14 ((uint)0x04000000)
258 #define SCC_GSMRL_TSNC_INF ((uint)0x00000000)
259 #define SCC_GSMRL_RINV ((uint)0x02000000)
260 #define SCC_GSMRL_TINV ((uint)0x01000000)
261 #define SCC_GSMRL_TPL_128 ((uint)0x00c00000)
262 #define SCC_GSMRL_TPL_64 ((uint)0x00a00000)
263 #define SCC_GSMRL_TPL_48 ((uint)0x00800000)
264 #define SCC_GSMRL_TPL_32 ((uint)0x00600000)
265 #define SCC_GSMRL_TPL_16 ((uint)0x00400000)
266 #define SCC_GSMRL_TPL_8 ((uint)0x00200000)
267 #define SCC_GSMRL_TPL_NONE ((uint)0x00000000)
268 #define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000)
269 #define SCC_GSMRL_TPP_01 ((uint)0x00100000)
270 #define SCC_GSMRL_TPP_10 ((uint)0x00080000)
271 #define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000)
272 #define SCC_GSMRL_TEND ((uint)0x00040000)
273 #define SCC_GSMRL_TDCR_32 ((uint)0x00030000)
274 #define SCC_GSMRL_TDCR_16 ((uint)0x00020000)
275 #define SCC_GSMRL_TDCR_8 ((uint)0x00010000)
276 #define SCC_GSMRL_TDCR_1 ((uint)0x00000000)
277 #define SCC_GSMRL_RDCR_32 ((uint)0x0000c000)
278 #define SCC_GSMRL_RDCR_16 ((uint)0x00008000)
279 #define SCC_GSMRL_RDCR_8 ((uint)0x00004000)
280 #define SCC_GSMRL_RDCR_1 ((uint)0x00000000)
281 #define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000)
282 #define SCC_GSMRL_RENC_MANCH ((uint)0x00002000)
283 #define SCC_GSMRL_RENC_FM0 ((uint)0x00001000)
284 #define SCC_GSMRL_RENC_NRZI ((uint)0x00000800)
285 #define SCC_GSMRL_RENC_NRZ ((uint)0x00000000)
286 #define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600)
287 #define SCC_GSMRL_TENC_MANCH ((uint)0x00000400)
288 #define SCC_GSMRL_TENC_FM0 ((uint)0x00000200)
289 #define SCC_GSMRL_TENC_NRZI ((uint)0x00000100)
290 #define SCC_GSMRL_TENC_NRZ ((uint)0x00000000)
291 #define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */
292 #define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080)
293 #define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040)
294 #define SCC_GSMRL_DIAG_NORM ((uint)0x00000000)
295 #define SCC_GSMRL_ENR ((uint)0x00000020)
296 #define SCC_GSMRL_ENT ((uint)0x00000010)
297 #define SCC_GSMRL_MODE_ENET ((uint)0x0000000c)
298 #define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009)
299 #define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008)
300 #define SCC_GSMRL_MODE_V14 ((uint)0x00000007)
301 #define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006)
302 #define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005)
303 #define SCC_GSMRL_MODE_UART ((uint)0x00000004)
304 #define SCC_GSMRL_MODE_SS7 ((uint)0x00000003)
305 #define SCC_GSMRL_MODE_ATALK ((uint)0x00000002)
306 #define SCC_GSMRL_MODE_HDLC ((uint)0x00000000)
308 #define SCC_TODR_TOD ((ushort)0x8000)
310 /* SCC Event and Mask register.
312 #define SCCM_TXE ((unsigned char)0x10)
313 #define SCCM_BSY ((unsigned char)0x04)
314 #define SCCM_TX ((unsigned char)0x02)
315 #define SCCM_RX ((unsigned char)0x01)
317 typedef struct scc_param {
318 ushort scc_rbase; /* Rx Buffer descriptor base address */
319 ushort scc_tbase; /* Tx Buffer descriptor base address */
320 u_char scc_rfcr; /* Rx function code */
321 u_char scc_tfcr; /* Tx function code */
322 ushort scc_mrblr; /* Max receive buffer length */
323 uint scc_rstate; /* Internal */
324 uint scc_idp; /* Internal */
325 ushort scc_rbptr; /* Internal */
326 ushort scc_ibc; /* Internal */
327 uint scc_rxtmp; /* Internal */
328 uint scc_tstate; /* Internal */
329 uint scc_tdp; /* Internal */
330 ushort scc_tbptr; /* Internal */
331 ushort scc_tbc; /* Internal */
332 uint scc_txtmp; /* Internal */
333 uint scc_rcrc; /* Internal */
334 uint scc_tcrc; /* Internal */
337 /* Function code bits.
339 #define SCC_EB ((u_char)0x10) /* Set big endian byte order */
341 /* CPM Ethernet through SCCx.
343 typedef struct scc_enet {
345 uint sen_cpres; /* Preset CRC */
346 uint sen_cmask; /* Constant mask for CRC */
347 uint sen_crcec; /* CRC Error counter */
348 uint sen_alec; /* alignment error counter */
349 uint sen_disfc; /* discard frame counter */
350 ushort sen_pads; /* Tx short frame pad character */
351 ushort sen_retlim; /* Retry limit threshold */
352 ushort sen_retcnt; /* Retry limit counter */
353 ushort sen_maxflr; /* maximum frame length register */
354 ushort sen_minflr; /* minimum frame length register */
355 ushort sen_maxd1; /* maximum DMA1 length */
356 ushort sen_maxd2; /* maximum DMA2 length */
357 ushort sen_maxd; /* Rx max DMA */
358 ushort sen_dmacnt; /* Rx DMA counter */
359 ushort sen_maxb; /* Max BD byte count */
360 ushort sen_gaddr1; /* Group address filter */
364 uint sen_tbuf0data0; /* Save area 0 - current frame */
365 uint sen_tbuf0data1; /* Save area 1 - current frame */
366 uint sen_tbuf0rba; /* Internal */
367 uint sen_tbuf0crc; /* Internal */
368 ushort sen_tbuf0bcnt; /* Internal */
369 ushort sen_paddrh; /* physical address (MSB) */
371 ushort sen_paddrl; /* physical address (LSB) */
372 ushort sen_pper; /* persistence */
373 ushort sen_rfbdptr; /* Rx first BD pointer */
374 ushort sen_tfbdptr; /* Tx first BD pointer */
375 ushort sen_tlbdptr; /* Tx last BD pointer */
376 uint sen_tbuf1data0; /* Save area 0 - current frame */
377 uint sen_tbuf1data1; /* Save area 1 - current frame */
378 uint sen_tbuf1rba; /* Internal */
379 uint sen_tbuf1crc; /* Internal */
380 ushort sen_tbuf1bcnt; /* Internal */
381 ushort sen_txlen; /* Tx Frame length counter */
382 ushort sen_iaddr1; /* Individual address filter */
386 ushort sen_boffcnt; /* Backoff counter */
388 /* NOTE: Some versions of the manual have the following items
389 * incorrectly documented. Below is the proper order.
391 ushort sen_taddrh; /* temp address (MSB) */
393 ushort sen_taddrl; /* temp address (LSB) */
396 /*********************************************************************/
398 /* SCC Event register as used by Ethernet.
400 #define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */
401 #define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */
402 #define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */
403 #define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */
404 #define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */
405 #define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */
407 /* SCC Mode Register (PSMR) as used by Ethernet.
409 #define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */
410 #define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */
411 #define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */
412 #define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */
413 #define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */
414 #define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */
415 #define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */
416 #define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */
417 #define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */
418 #define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */
419 #define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */
420 #define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */
421 #define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */
423 /* Buffer descriptor control/status used by Ethernet receive.
425 #define BD_ENET_RX_EMPTY ((ushort)0x8000)
426 #define BD_ENET_RX_WRAP ((ushort)0x2000)
427 #define BD_ENET_RX_INTR ((ushort)0x1000)
428 #define BD_ENET_RX_LAST ((ushort)0x0800)
429 #define BD_ENET_RX_FIRST ((ushort)0x0400)
430 #define BD_ENET_RX_MISS ((ushort)0x0100)
431 #define BD_ENET_RX_LG ((ushort)0x0020)
432 #define BD_ENET_RX_NO ((ushort)0x0010)
433 #define BD_ENET_RX_SH ((ushort)0x0008)
434 #define BD_ENET_RX_CR ((ushort)0x0004)
435 #define BD_ENET_RX_OV ((ushort)0x0002)
436 #define BD_ENET_RX_CL ((ushort)0x0001)
437 #define BD_ENET_RX_STATS ((ushort)0x013f) /* All status bits */
439 /* Buffer descriptor control/status used by Ethernet transmit.
441 #define BD_ENET_TX_READY ((ushort)0x8000)
442 #define BD_ENET_TX_PAD ((ushort)0x4000)
443 #define BD_ENET_TX_WRAP ((ushort)0x2000)
444 #define BD_ENET_TX_INTR ((ushort)0x1000)
445 #define BD_ENET_TX_LAST ((ushort)0x0800)
446 #define BD_ENET_TX_TC ((ushort)0x0400)
447 #define BD_ENET_TX_DEF ((ushort)0x0200)
448 #define BD_ENET_TX_HB ((ushort)0x0100)
449 #define BD_ENET_TX_LC ((ushort)0x0080)
450 #define BD_ENET_TX_RL ((ushort)0x0040)
451 #define BD_ENET_TX_RCMASK ((ushort)0x003c)
452 #define BD_ENET_TX_UN ((ushort)0x0002)
453 #define BD_ENET_TX_CSL ((ushort)0x0001)
454 #define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */
458 typedef struct scc_uart {
460 uint scc_res1; /* Reserved */
461 uint scc_res2; /* Reserved */
462 ushort scc_maxidl; /* Maximum idle chars */
463 ushort scc_idlc; /* temp idle counter */
464 ushort scc_brkcr; /* Break count register */
465 ushort scc_parec; /* receive parity error counter */
466 ushort scc_frmec; /* receive framing error counter */
467 ushort scc_nosec; /* receive noise counter */
468 ushort scc_brkec; /* receive break condition counter */
469 ushort scc_brkln; /* last received break length */
470 ushort scc_uaddr1; /* UART address character 1 */
471 ushort scc_uaddr2; /* UART address character 2 */
472 ushort scc_rtemp; /* Temp storage */
473 ushort scc_toseq; /* Transmit out of sequence char */
474 ushort scc_char1; /* control character 1 */
475 ushort scc_char2; /* control character 2 */
476 ushort scc_char3; /* control character 3 */
477 ushort scc_char4; /* control character 4 */
478 ushort scc_char5; /* control character 5 */
479 ushort scc_char6; /* control character 6 */
480 ushort scc_char7; /* control character 7 */
481 ushort scc_char8; /* control character 8 */
482 ushort scc_rccm; /* receive control character mask */
483 ushort scc_rccr; /* receive control character register */
484 ushort scc_rlbc; /* receive last break character */
487 /* SCC Event and Mask registers when it is used as a UART.
489 #define UART_SCCM_GLR ((ushort)0x1000)
490 #define UART_SCCM_GLT ((ushort)0x0800)
491 #define UART_SCCM_AB ((ushort)0x0200)
492 #define UART_SCCM_IDL ((ushort)0x0100)
493 #define UART_SCCM_GRA ((ushort)0x0080)
494 #define UART_SCCM_BRKE ((ushort)0x0040)
495 #define UART_SCCM_BRKS ((ushort)0x0020)
496 #define UART_SCCM_CCR ((ushort)0x0008)
497 #define UART_SCCM_BSY ((ushort)0x0004)
498 #define UART_SCCM_TX ((ushort)0x0002)
499 #define UART_SCCM_RX ((ushort)0x0001)
501 /* The SCC PSMR when used as a UART.
503 #define SCU_PSMR_FLC ((ushort)0x8000)
504 #define SCU_PSMR_SL ((ushort)0x4000)
505 #define SCU_PSMR_CL ((ushort)0x3000)
506 #define SCU_PSMR_UM ((ushort)0x0c00)
507 #define SCU_PSMR_FRZ ((ushort)0x0200)
508 #define SCU_PSMR_RZS ((ushort)0x0100)
509 #define SCU_PSMR_SYN ((ushort)0x0080)
510 #define SCU_PSMR_DRT ((ushort)0x0040)
511 #define SCU_PSMR_PEN ((ushort)0x0010)
512 #define SCU_PSMR_RPM ((ushort)0x000c)
513 #define SCU_PSMR_REVP ((ushort)0x0008)
514 #define SCU_PSMR_TPM ((ushort)0x0003)
515 #define SCU_PSMR_TEVP ((ushort)0x0003)
517 /* CPM Transparent mode SCC.
519 typedef struct scc_trans {
521 uint st_cpres; /* Preset CRC */
522 uint st_cmask; /* Constant mask for CRC */
525 #define BD_SCC_TX_LAST ((ushort)0x0800)
527 /* IIC parameter RAM.
530 ushort iic_rbase; /* Rx Buffer descriptor base address */
531 ushort iic_tbase; /* Tx Buffer descriptor base address */
532 u_char iic_rfcr; /* Rx function code */
533 u_char iic_tfcr; /* Tx function code */
534 ushort iic_mrblr; /* Max receive buffer length */
535 uint iic_rstate; /* Internal */
536 uint iic_rdp; /* Internal */
537 ushort iic_rbptr; /* Internal */
538 ushort iic_rbc; /* Internal */
539 uint iic_rxtmp; /* Internal */
540 uint iic_tstate; /* Internal */
541 uint iic_tdp; /* Internal */
542 ushort iic_tbptr; /* Internal */
543 ushort iic_tbc; /* Internal */
544 uint iic_txtmp; /* Internal */
545 uint iic_res; /* reserved */
546 ushort iic_rpbase; /* Relocation pointer */
547 ushort iic_res2; /* reserved */
550 /* SPI parameter RAM.
553 ushort spi_rbase; /* Rx Buffer descriptor base address */
554 ushort spi_tbase; /* Tx Buffer descriptor base address */
555 u_char spi_rfcr; /* Rx function code */
556 u_char spi_tfcr; /* Tx function code */
557 ushort spi_mrblr; /* Max receive buffer length */
558 uint spi_rstate; /* Internal */
559 uint spi_rdp; /* Internal */
560 ushort spi_rbptr; /* Internal */
561 ushort spi_rbc; /* Internal */
562 uint spi_rxtmp; /* Internal */
563 uint spi_tstate; /* Internal */
564 uint spi_tdp; /* Internal */
565 ushort spi_tbptr; /* Internal */
566 ushort spi_tbc; /* Internal */
567 uint spi_txtmp; /* Internal */
569 ushort spi_rpbase; /* Relocation pointer */
573 /* SPI Mode register.
575 #define SPMODE_LOOP ((ushort)0x4000) /* Loopback */
576 #define SPMODE_CI ((ushort)0x2000) /* Clock Invert */
577 #define SPMODE_CP ((ushort)0x1000) /* Clock Phase */
578 #define SPMODE_DIV16 ((ushort)0x0800) /* BRG/16 mode */
579 #define SPMODE_REV ((ushort)0x0400) /* Reversed Data */
580 #define SPMODE_MSTR ((ushort)0x0200) /* SPI Master */
581 #define SPMODE_EN ((ushort)0x0100) /* Enable */
582 #define SPMODE_LENMSK ((ushort)0x00f0) /* character length */
583 #define SPMODE_PMMSK ((ushort)0x000f) /* prescale modulus */
585 #define SPMODE_LEN(x) ((((x) - 1) & 0xF) << 4)
586 #define SPMODE_PM(x) ((x) & 0xF)
588 /* HDLC parameter RAM.
591 typedef struct hdlc_pram_s {
595 ushort rbase; /* Rx Buffer descriptor base address */
596 ushort tbase; /* Tx Buffer descriptor base address */
597 uchar rfcr; /* Rx function code */
598 uchar tfcr; /* Tx function code */
599 ushort mrblr; /* Rx buffer length */
600 ulong rstate; /* Rx internal state */
601 ulong rptr; /* Rx internal data pointer */
602 ushort rbptr; /* rb BD Pointer */
603 ushort rcount; /* Rx internal byte count */
604 ulong rtemp; /* Rx temp */
605 ulong tstate; /* Tx internal state */
606 ulong tptr; /* Tx internal data pointer */
607 ushort tbptr; /* Tx BD pointer */
608 ushort tcount; /* Tx byte count */
609 ulong ttemp; /* Tx temp */
610 ulong rcrc; /* temp receive CRC */
611 ulong tcrc; /* temp transmit CRC */
613 * HDLC specific parameter RAM
615 uchar res[4]; /* reserved */
616 ulong c_mask; /* CRC constant */
617 ulong c_pres; /* CRC preset */
618 ushort disfc; /* discarded frame counter */
619 ushort crcec; /* CRC error counter */
620 ushort abtsc; /* abort sequence counter */
621 ushort nmarc; /* nonmatching address rx cnt */
622 ushort retrc; /* frame retransmission cnt */
623 ushort mflr; /* maximum frame length reg */
624 ushort max_cnt; /* maximum length counter */
625 ushort rfthr; /* received frames threshold */
626 ushort rfcnt; /* received frames count */
627 ushort hmask; /* user defined frm addr mask */
628 ushort haddr1; /* user defined frm address 1 */
629 ushort haddr2; /* user defined frm address 2 */
630 ushort haddr3; /* user defined frm address 3 */
631 ushort haddr4; /* user defined frm address 4 */
632 ushort tmp; /* temp */
633 ushort tmp_mb; /* temp */
636 /* CPM interrupts. There are nearly 32 interrupts generated by CPM
637 * channels or devices. All of these are presented to the PPC core
638 * as a single interrupt. The CPM interrupt handler dispatches its
639 * own handlers, in a similar fashion to the PPC core handler. We
640 * use the table as defined in the manuals (i.e. no special high
641 * priority and SCC1 == SCCa, etc...).
644 #define CPMVEC_OFFSET 0x00010000
645 #define CPMVEC_PIO_PC15 ((ushort)0x1f | CPMVEC_OFFSET)
646 #define CPMVEC_SCC1 ((ushort)0x1e | CPMVEC_OFFSET)
647 #define CPMVEC_SCC2 ((ushort)0x1d | CPMVEC_OFFSET)
648 #define CPMVEC_SCC3 ((ushort)0x1c | CPMVEC_OFFSET)
649 #define CPMVEC_SCC4 ((ushort)0x1b | CPMVEC_OFFSET)
650 #define CPMVEC_PIO_PC14 ((ushort)0x1a | CPMVEC_OFFSET)
651 #define CPMVEC_TIMER1 ((ushort)0x19 | CPMVEC_OFFSET)
652 #define CPMVEC_PIO_PC13 ((ushort)0x18 | CPMVEC_OFFSET)
653 #define CPMVEC_PIO_PC12 ((ushort)0x17 | CPMVEC_OFFSET)
654 #define CPMVEC_SDMA_CB_ERR ((ushort)0x16 | CPMVEC_OFFSET)
655 #define CPMVEC_IDMA1 ((ushort)0x15 | CPMVEC_OFFSET)
656 #define CPMVEC_IDMA2 ((ushort)0x14 | CPMVEC_OFFSET)
657 #define CPMVEC_TIMER2 ((ushort)0x12 | CPMVEC_OFFSET)
658 #define CPMVEC_RISCTIMER ((ushort)0x11 | CPMVEC_OFFSET)
659 #define CPMVEC_I2C ((ushort)0x10 | CPMVEC_OFFSET)
660 #define CPMVEC_PIO_PC11 ((ushort)0x0f | CPMVEC_OFFSET)
661 #define CPMVEC_PIO_PC10 ((ushort)0x0e | CPMVEC_OFFSET)
662 #define CPMVEC_TIMER3 ((ushort)0x0c | CPMVEC_OFFSET)
663 #define CPMVEC_PIO_PC9 ((ushort)0x0b | CPMVEC_OFFSET)
664 #define CPMVEC_PIO_PC8 ((ushort)0x0a | CPMVEC_OFFSET)
665 #define CPMVEC_PIO_PC7 ((ushort)0x09 | CPMVEC_OFFSET)
666 #define CPMVEC_TIMER4 ((ushort)0x07 | CPMVEC_OFFSET)
667 #define CPMVEC_PIO_PC6 ((ushort)0x06 | CPMVEC_OFFSET)
668 #define CPMVEC_SPI ((ushort)0x05 | CPMVEC_OFFSET)
669 #define CPMVEC_SMC1 ((ushort)0x04 | CPMVEC_OFFSET)
670 #define CPMVEC_SMC2 ((ushort)0x03 | CPMVEC_OFFSET)
671 #define CPMVEC_PIO_PC5 ((ushort)0x02 | CPMVEC_OFFSET)
672 #define CPMVEC_PIO_PC4 ((ushort)0x01 | CPMVEC_OFFSET)
673 #define CPMVEC_ERROR ((ushort)0x00 | CPMVEC_OFFSET)
675 void irq_install_handler(int vec, void (*handler)(void *), void *dev_id);
677 /* CPM interrupt configuration vector.
679 #define CICR_SCD_SCC4 ((uint)0x00c00000) /* SCC4 @ SCCd */
680 #define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */
681 #define CICR_SCB_SCC2 ((uint)0x00040000) /* SCC2 @ SCCb */
682 #define CICR_SCA_SCC1 ((uint)0x00000000) /* SCC1 @ SCCa */
683 #define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrupt */
684 #define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */
685 #define CICR_IEN ((uint)0x00000080) /* Int. enable */
686 #define CICR_SPS ((uint)0x00000001) /* SCC Spread */
687 #endif /* __CPM_8XX__ */