2 * MPC8xx Communication Processor Module.
3 * Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
5 * This file contains structures and information for the communication
6 * processor channels. Some CPM control and status is available
7 * throught the MPC8xx internal memory map. See immap.h for details.
8 * This file only contains what I need for the moment, not the total
9 * CPM capabilities. I (or someone else) will add definitions as they
12 * On the MBX board, EPPC-Bug loads CPM microcode into the first 512
13 * bytes of the DP RAM and relocates the I2C parameter area to the
14 * IDMA1 space. The remaining DP RAM is available for buffer descriptors
20 #include <asm/8xx_immap.h>
21 #include <asm/ptrace.h>
23 /* CPM Command register.
25 #define CPM_CR_RST ((ushort)0x8000)
26 #define CPM_CR_OPCODE ((ushort)0x0f00)
27 #define CPM_CR_CHAN ((ushort)0x00f0)
28 #define CPM_CR_FLG ((ushort)0x0001)
30 /* Some commands (there are more...later)
32 #define CPM_CR_INIT_TRX ((ushort)0x0000)
33 #define CPM_CR_INIT_RX ((ushort)0x0001)
34 #define CPM_CR_INIT_TX ((ushort)0x0002)
35 #define CPM_CR_HUNT_MODE ((ushort)0x0003)
36 #define CPM_CR_STOP_TX ((ushort)0x0004)
37 #define CPM_CR_GRA_STOP_TX ((ushort)0x0005)
38 #define CPM_CR_RESTART_TX ((ushort)0x0006)
39 #define CPM_CR_CLOSE_RX_BD ((ushort)0x0007)
40 #define CPM_CR_SET_GADDR ((ushort)0x0008)
41 #define CPM_CR_SET_TIMER CPM_CR_SET_GADDR
45 #define CPM_CR_CH_SCC1 ((ushort)0x0000)
46 #define CPM_CR_CH_I2C ((ushort)0x0001) /* I2C and IDMA1 */
47 #define CPM_CR_CH_SCC2 ((ushort)0x0004)
48 #define CPM_CR_CH_SPI ((ushort)0x0005) /* SPI / IDMA2 / Timers */
49 #define CPM_CR_CH_TIMER CPM_CR_CH_SPI
50 #define CPM_CR_CH_SCC3 ((ushort)0x0008)
51 #define CPM_CR_CH_SMC1 ((ushort)0x0009) /* SMC1 / DSP1 */
52 #define CPM_CR_CH_SCC4 ((ushort)0x000c)
53 #define CPM_CR_CH_SMC2 ((ushort)0x000d) /* SMC2 / DSP2 */
55 #define mk_cr_cmd(CH, CMD) ((CMD << 8) | (CH << 4))
57 /* The dual ported RAM is multi-functional. Some areas can be (and are
58 * being) used for microcode. There is an area that can only be used
59 * as data ram for buffer descriptors, which is all we use right now.
60 * Currently the first 512 and last 256 bytes are used for microcode.
62 #define CPM_DATAONLY_BASE ((uint)0x0800)
63 #define CPM_DATAONLY_SIZE ((uint)0x0700)
64 #define CPM_DP_NOSPACE ((uint)0x7fffffff)
66 /* Export the base address of the communication processor registers
69 extern cpm8xx_t *cpmp; /* Pointer to comm processor */
70 extern unsigned long cpm_dpalloc(uint size, uint align);
71 extern int cpm_dpfree(unsigned long offset);
72 extern unsigned long cpm_dpalloc_fixed(unsigned long offset, uint size, uint align);
73 extern void cpm_dpdump(void);
74 extern void *cpm_dpram_addr(unsigned long offset);
75 extern uint cpm_dpram_phys(u8 *addr);
76 extern void cpm_setbrg(uint brg, uint rate);
78 extern void cpm_load_patch(volatile immap_t *immr);
80 /* Buffer descriptors used by many of the CPM protocols.
82 typedef struct cpm_buf_desc {
83 ushort cbd_sc; /* Status and Control */
84 ushort cbd_datlen; /* Data length in buffer */
85 uint cbd_bufaddr; /* Buffer address in host memory */
88 #define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */
89 #define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */
90 #define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */
91 #define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */
92 #define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */
93 #define BD_SC_TC ((ushort)0x0400) /* Transmit CRC */
94 #define BD_SC_CM ((ushort)0x0200) /* Continous mode */
95 #define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */
96 #define BD_SC_P ((ushort)0x0100) /* xmt preamble */
97 #define BD_SC_BR ((ushort)0x0020) /* Break received */
98 #define BD_SC_FR ((ushort)0x0010) /* Framing error */
99 #define BD_SC_PR ((ushort)0x0008) /* Parity error */
100 #define BD_SC_NAK ((ushort)0x0004) /* NAK - did not respond */
101 #define BD_SC_OV ((ushort)0x0002) /* Overrun */
102 #define BD_SC_UN ((ushort)0x0002) /* Underrun */
103 #define BD_SC_CD ((ushort)0x0001) /* ?? */
104 #define BD_SC_CL ((ushort)0x0001) /* Collision */
106 /* Parameter RAM offsets.
108 #define PROFF_SCC1 ((uint)0x0000)
109 #define PROFF_IIC ((uint)0x0080)
110 #define PROFF_SCC2 ((uint)0x0100)
111 #define PROFF_SPI ((uint)0x0180)
112 #define PROFF_SCC3 ((uint)0x0200)
113 #define PROFF_SMC1 ((uint)0x0280)
114 #define PROFF_SCC4 ((uint)0x0300)
115 #define PROFF_SMC2 ((uint)0x0380)
117 /* Define enough so I can at least use the serial port as a UART.
118 * The MBX uses SMC1 as the host serial port.
120 typedef struct smc_uart {
121 ushort smc_rbase; /* Rx Buffer descriptor base address */
122 ushort smc_tbase; /* Tx Buffer descriptor base address */
123 u_char smc_rfcr; /* Rx function code */
124 u_char smc_tfcr; /* Tx function code */
125 ushort smc_mrblr; /* Max receive buffer length */
126 uint smc_rstate; /* Internal */
127 uint smc_idp; /* Internal */
128 ushort smc_rbptr; /* Internal */
129 ushort smc_ibc; /* Internal */
130 uint smc_rxtmp; /* Internal */
131 uint smc_tstate; /* Internal */
132 uint smc_tdp; /* Internal */
133 ushort smc_tbptr; /* Internal */
134 ushort smc_tbc; /* Internal */
135 uint smc_txtmp; /* Internal */
136 ushort smc_maxidl; /* Maximum idle characters */
137 ushort smc_tmpidl; /* Temporary idle counter */
138 ushort smc_brklen; /* Last received break length */
139 ushort smc_brkec; /* rcv'd break condition counter */
140 ushort smc_brkcr; /* xmt break count register */
141 ushort smc_rmask; /* Temporary bit mask */
142 char res1[8]; /* Reserved */
143 ushort smc_rpbase; /* Relocation pointer */
146 /* Function code bits.
148 #define SMC_EB ((u_char)0x10) /* Set big endian byte order */
150 /* SMC uart mode register.
152 #define SMCMR_REN ((ushort)0x0001)
153 #define SMCMR_TEN ((ushort)0x0002)
154 #define SMCMR_DM ((ushort)0x000c)
155 #define SMCMR_SM_GCI ((ushort)0x0000)
156 #define SMCMR_SM_UART ((ushort)0x0020)
157 #define SMCMR_SM_TRANS ((ushort)0x0030)
158 #define SMCMR_SM_MASK ((ushort)0x0030)
159 #define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */
160 #define SMCMR_REVD SMCMR_PM_EVEN
161 #define SMCMR_PEN ((ushort)0x0200) /* Parity enable */
162 #define SMCMR_BS SMCMR_PEN
163 #define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */
164 #define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */
165 #define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK)
167 /* SMC2 as Centronics parallel printer. It is half duplex, in that
168 * it can only receive or transmit. The parameter ram values for
169 * each direction are either unique or properly overlap, so we can
170 * include them in one structure.
172 typedef struct smc_centronics {
190 ushort scent_character1;
191 ushort scent_character2;
192 ushort scent_character3;
193 ushort scent_character4;
194 ushort scent_character5;
195 ushort scent_character6;
196 ushort scent_character7;
197 ushort scent_character8;
202 /* Centronics Status Mask Register.
204 #define SMC_CENT_F ((u_char)0x08)
205 #define SMC_CENT_PE ((u_char)0x04)
206 #define SMC_CENT_S ((u_char)0x02)
208 /* SMC Event and Mask register.
210 #define SMCM_BRKE ((unsigned char)0x40) /* When in UART Mode */
211 #define SMCM_BRK ((unsigned char)0x10) /* When in UART Mode */
212 #define SMCM_TXE ((unsigned char)0x10) /* When in Transparent Mode */
213 #define SMCM_BSY ((unsigned char)0x04)
214 #define SMCM_TX ((unsigned char)0x02)
215 #define SMCM_RX ((unsigned char)0x01)
217 /* Baud rate generators.
219 #define CPM_BRG_RST ((uint)0x00020000)
220 #define CPM_BRG_EN ((uint)0x00010000)
221 #define CPM_BRG_EXTC_INT ((uint)0x00000000)
222 #define CPM_BRG_EXTC_CLK2 ((uint)0x00004000)
223 #define CPM_BRG_EXTC_CLK6 ((uint)0x00008000)
224 #define CPM_BRG_ATB ((uint)0x00002000)
225 #define CPM_BRG_CD_MASK ((uint)0x00001ffe)
226 #define CPM_BRG_DIV16 ((uint)0x00000001)
228 /* SI Clock Route Register
230 #define SICR_RCLK_SCC1_BRG1 ((uint)0x00000000)
231 #define SICR_TCLK_SCC1_BRG1 ((uint)0x00000000)
232 #define SICR_RCLK_SCC2_BRG2 ((uint)0x00000800)
233 #define SICR_TCLK_SCC2_BRG2 ((uint)0x00000100)
234 #define SICR_RCLK_SCC3_BRG3 ((uint)0x00100000)
235 #define SICR_TCLK_SCC3_BRG3 ((uint)0x00020000)
236 #define SICR_RCLK_SCC4_BRG4 ((uint)0x18000000)
237 #define SICR_TCLK_SCC4_BRG4 ((uint)0x03000000)
241 #define SCC_GSMRH_IRP ((uint)0x00040000)
242 #define SCC_GSMRH_GDE ((uint)0x00010000)
243 #define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000)
244 #define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000)
245 #define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000)
246 #define SCC_GSMRH_REVD ((uint)0x00002000)
247 #define SCC_GSMRH_TRX ((uint)0x00001000)
248 #define SCC_GSMRH_TTX ((uint)0x00000800)
249 #define SCC_GSMRH_CDP ((uint)0x00000400)
250 #define SCC_GSMRH_CTSP ((uint)0x00000200)
251 #define SCC_GSMRH_CDS ((uint)0x00000100)
252 #define SCC_GSMRH_CTSS ((uint)0x00000080)
253 #define SCC_GSMRH_TFL ((uint)0x00000040)
254 #define SCC_GSMRH_RFW ((uint)0x00000020)
255 #define SCC_GSMRH_TXSY ((uint)0x00000010)
256 #define SCC_GSMRH_SYNL16 ((uint)0x0000000c)
257 #define SCC_GSMRH_SYNL8 ((uint)0x00000008)
258 #define SCC_GSMRH_SYNL4 ((uint)0x00000004)
259 #define SCC_GSMRH_RTSM ((uint)0x00000002)
260 #define SCC_GSMRH_RSYN ((uint)0x00000001)
262 #define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */
263 #define SCC_GSMRL_EDGE_NONE ((uint)0x60000000)
264 #define SCC_GSMRL_EDGE_NEG ((uint)0x40000000)
265 #define SCC_GSMRL_EDGE_POS ((uint)0x20000000)
266 #define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000)
267 #define SCC_GSMRL_TCI ((uint)0x10000000)
268 #define SCC_GSMRL_TSNC_3 ((uint)0x0c000000)
269 #define SCC_GSMRL_TSNC_4 ((uint)0x08000000)
270 #define SCC_GSMRL_TSNC_14 ((uint)0x04000000)
271 #define SCC_GSMRL_TSNC_INF ((uint)0x00000000)
272 #define SCC_GSMRL_RINV ((uint)0x02000000)
273 #define SCC_GSMRL_TINV ((uint)0x01000000)
274 #define SCC_GSMRL_TPL_128 ((uint)0x00c00000)
275 #define SCC_GSMRL_TPL_64 ((uint)0x00a00000)
276 #define SCC_GSMRL_TPL_48 ((uint)0x00800000)
277 #define SCC_GSMRL_TPL_32 ((uint)0x00600000)
278 #define SCC_GSMRL_TPL_16 ((uint)0x00400000)
279 #define SCC_GSMRL_TPL_8 ((uint)0x00200000)
280 #define SCC_GSMRL_TPL_NONE ((uint)0x00000000)
281 #define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000)
282 #define SCC_GSMRL_TPP_01 ((uint)0x00100000)
283 #define SCC_GSMRL_TPP_10 ((uint)0x00080000)
284 #define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000)
285 #define SCC_GSMRL_TEND ((uint)0x00040000)
286 #define SCC_GSMRL_TDCR_32 ((uint)0x00030000)
287 #define SCC_GSMRL_TDCR_16 ((uint)0x00020000)
288 #define SCC_GSMRL_TDCR_8 ((uint)0x00010000)
289 #define SCC_GSMRL_TDCR_1 ((uint)0x00000000)
290 #define SCC_GSMRL_RDCR_32 ((uint)0x0000c000)
291 #define SCC_GSMRL_RDCR_16 ((uint)0x00008000)
292 #define SCC_GSMRL_RDCR_8 ((uint)0x00004000)
293 #define SCC_GSMRL_RDCR_1 ((uint)0x00000000)
294 #define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000)
295 #define SCC_GSMRL_RENC_MANCH ((uint)0x00002000)
296 #define SCC_GSMRL_RENC_FM0 ((uint)0x00001000)
297 #define SCC_GSMRL_RENC_NRZI ((uint)0x00000800)
298 #define SCC_GSMRL_RENC_NRZ ((uint)0x00000000)
299 #define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600)
300 #define SCC_GSMRL_TENC_MANCH ((uint)0x00000400)
301 #define SCC_GSMRL_TENC_FM0 ((uint)0x00000200)
302 #define SCC_GSMRL_TENC_NRZI ((uint)0x00000100)
303 #define SCC_GSMRL_TENC_NRZ ((uint)0x00000000)
304 #define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */
305 #define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080)
306 #define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040)
307 #define SCC_GSMRL_DIAG_NORM ((uint)0x00000000)
308 #define SCC_GSMRL_ENR ((uint)0x00000020)
309 #define SCC_GSMRL_ENT ((uint)0x00000010)
310 #define SCC_GSMRL_MODE_ENET ((uint)0x0000000c)
311 #define SCC_GSMRL_MODE_QMC ((uint)0x0000000a)
312 #define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009)
313 #define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008)
314 #define SCC_GSMRL_MODE_V14 ((uint)0x00000007)
315 #define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006)
316 #define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005)
317 #define SCC_GSMRL_MODE_UART ((uint)0x00000004)
318 #define SCC_GSMRL_MODE_SS7 ((uint)0x00000003)
319 #define SCC_GSMRL_MODE_ATALK ((uint)0x00000002)
320 #define SCC_GSMRL_MODE_HDLC ((uint)0x00000000)
322 #define SCC_TODR_TOD ((ushort)0x8000)
324 /* SCC Event and Mask register.
326 #define SCCM_TXE ((unsigned char)0x10)
327 #define SCCM_BSY ((unsigned char)0x04)
328 #define SCCM_TX ((unsigned char)0x02)
329 #define SCCM_RX ((unsigned char)0x01)
331 typedef struct scc_param {
332 ushort scc_rbase; /* Rx Buffer descriptor base address */
333 ushort scc_tbase; /* Tx Buffer descriptor base address */
334 u_char scc_rfcr; /* Rx function code */
335 u_char scc_tfcr; /* Tx function code */
336 ushort scc_mrblr; /* Max receive buffer length */
337 uint scc_rstate; /* Internal */
338 uint scc_idp; /* Internal */
339 ushort scc_rbptr; /* Internal */
340 ushort scc_ibc; /* Internal */
341 uint scc_rxtmp; /* Internal */
342 uint scc_tstate; /* Internal */
343 uint scc_tdp; /* Internal */
344 ushort scc_tbptr; /* Internal */
345 ushort scc_tbc; /* Internal */
346 uint scc_txtmp; /* Internal */
347 uint scc_rcrc; /* Internal */
348 uint scc_tcrc; /* Internal */
351 /* Function code bits.
353 #define SCC_EB ((u_char)0x10) /* Set big endian byte order */
355 /* CPM Ethernet through SCCx.
357 typedef struct scc_enet {
359 uint sen_cpres; /* Preset CRC */
360 uint sen_cmask; /* Constant mask for CRC */
361 uint sen_crcec; /* CRC Error counter */
362 uint sen_alec; /* alignment error counter */
363 uint sen_disfc; /* discard frame counter */
364 ushort sen_pads; /* Tx short frame pad character */
365 ushort sen_retlim; /* Retry limit threshold */
366 ushort sen_retcnt; /* Retry limit counter */
367 ushort sen_maxflr; /* maximum frame length register */
368 ushort sen_minflr; /* minimum frame length register */
369 ushort sen_maxd1; /* maximum DMA1 length */
370 ushort sen_maxd2; /* maximum DMA2 length */
371 ushort sen_maxd; /* Rx max DMA */
372 ushort sen_dmacnt; /* Rx DMA counter */
373 ushort sen_maxb; /* Max BD byte count */
374 ushort sen_gaddr1; /* Group address filter */
378 uint sen_tbuf0data0; /* Save area 0 - current frame */
379 uint sen_tbuf0data1; /* Save area 1 - current frame */
380 uint sen_tbuf0rba; /* Internal */
381 uint sen_tbuf0crc; /* Internal */
382 ushort sen_tbuf0bcnt; /* Internal */
383 ushort sen_paddrh; /* physical address (MSB) */
385 ushort sen_paddrl; /* physical address (LSB) */
386 ushort sen_pper; /* persistence */
387 ushort sen_rfbdptr; /* Rx first BD pointer */
388 ushort sen_tfbdptr; /* Tx first BD pointer */
389 ushort sen_tlbdptr; /* Tx last BD pointer */
390 uint sen_tbuf1data0; /* Save area 0 - current frame */
391 uint sen_tbuf1data1; /* Save area 1 - current frame */
392 uint sen_tbuf1rba; /* Internal */
393 uint sen_tbuf1crc; /* Internal */
394 ushort sen_tbuf1bcnt; /* Internal */
395 ushort sen_txlen; /* Tx Frame length counter */
396 ushort sen_iaddr1; /* Individual address filter */
400 ushort sen_boffcnt; /* Backoff counter */
402 /* NOTE: Some versions of the manual have the following items
403 * incorrectly documented. Below is the proper order.
405 ushort sen_taddrh; /* temp address (MSB) */
407 ushort sen_taddrl; /* temp address (LSB) */
410 /* SCC Event register as used by Ethernet.
412 #define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */
413 #define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */
414 #define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */
415 #define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */
416 #define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */
417 #define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */
419 /* SCC Mode Register (PMSR) as used by Ethernet.
421 #define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */
422 #define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */
423 #define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */
424 #define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */
425 #define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */
426 #define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */
427 #define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */
428 #define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */
429 #define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */
430 #define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */
431 #define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */
432 #define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */
433 #define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */
435 /* Buffer descriptor control/status used by Ethernet receive.
437 #define BD_ENET_RX_EMPTY ((ushort)0x8000)
438 #define BD_ENET_RX_WRAP ((ushort)0x2000)
439 #define BD_ENET_RX_INTR ((ushort)0x1000)
440 #define BD_ENET_RX_LAST ((ushort)0x0800)
441 #define BD_ENET_RX_FIRST ((ushort)0x0400)
442 #define BD_ENET_RX_MISS ((ushort)0x0100)
443 #define BD_ENET_RX_LG ((ushort)0x0020)
444 #define BD_ENET_RX_NO ((ushort)0x0010)
445 #define BD_ENET_RX_SH ((ushort)0x0008)
446 #define BD_ENET_RX_CR ((ushort)0x0004)
447 #define BD_ENET_RX_OV ((ushort)0x0002)
448 #define BD_ENET_RX_CL ((ushort)0x0001)
449 #define BD_ENET_RX_BC ((ushort)0x0080) /* DA is Broadcast */
450 #define BD_ENET_RX_MC ((ushort)0x0040) /* DA is Multicast */
451 #define BD_ENET_RX_STATS ((ushort)0x013f) /* All status bits */
453 /* Buffer descriptor control/status used by Ethernet transmit.
455 #define BD_ENET_TX_READY ((ushort)0x8000)
456 #define BD_ENET_TX_PAD ((ushort)0x4000)
457 #define BD_ENET_TX_WRAP ((ushort)0x2000)
458 #define BD_ENET_TX_INTR ((ushort)0x1000)
459 #define BD_ENET_TX_LAST ((ushort)0x0800)
460 #define BD_ENET_TX_TC ((ushort)0x0400)
461 #define BD_ENET_TX_DEF ((ushort)0x0200)
462 #define BD_ENET_TX_HB ((ushort)0x0100)
463 #define BD_ENET_TX_LC ((ushort)0x0080)
464 #define BD_ENET_TX_RL ((ushort)0x0040)
465 #define BD_ENET_TX_RCMASK ((ushort)0x003c)
466 #define BD_ENET_TX_UN ((ushort)0x0002)
467 #define BD_ENET_TX_CSL ((ushort)0x0001)
468 #define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */
472 typedef struct scc_uart {
474 char res1[8]; /* Reserved */
475 ushort scc_maxidl; /* Maximum idle chars */
476 ushort scc_idlc; /* temp idle counter */
477 ushort scc_brkcr; /* Break count register */
478 ushort scc_parec; /* receive parity error counter */
479 ushort scc_frmec; /* receive framing error counter */
480 ushort scc_nosec; /* receive noise counter */
481 ushort scc_brkec; /* receive break condition counter */
482 ushort scc_brkln; /* last received break length */
483 ushort scc_uaddr1; /* UART address character 1 */
484 ushort scc_uaddr2; /* UART address character 2 */
485 ushort scc_rtemp; /* Temp storage */
486 ushort scc_toseq; /* Transmit out of sequence char */
487 ushort scc_char1; /* control character 1 */
488 ushort scc_char2; /* control character 2 */
489 ushort scc_char3; /* control character 3 */
490 ushort scc_char4; /* control character 4 */
491 ushort scc_char5; /* control character 5 */
492 ushort scc_char6; /* control character 6 */
493 ushort scc_char7; /* control character 7 */
494 ushort scc_char8; /* control character 8 */
495 ushort scc_rccm; /* receive control character mask */
496 ushort scc_rccr; /* receive control character register */
497 ushort scc_rlbc; /* receive last break character */
500 /* SCC Event and Mask registers when it is used as a UART.
502 #define UART_SCCM_GLR ((ushort)0x1000)
503 #define UART_SCCM_GLT ((ushort)0x0800)
504 #define UART_SCCM_AB ((ushort)0x0200)
505 #define UART_SCCM_IDL ((ushort)0x0100)
506 #define UART_SCCM_GRA ((ushort)0x0080)
507 #define UART_SCCM_BRKE ((ushort)0x0040)
508 #define UART_SCCM_BRKS ((ushort)0x0020)
509 #define UART_SCCM_CCR ((ushort)0x0008)
510 #define UART_SCCM_BSY ((ushort)0x0004)
511 #define UART_SCCM_TX ((ushort)0x0002)
512 #define UART_SCCM_RX ((ushort)0x0001)
514 /* The SCC PMSR when used as a UART.
516 #define SCU_PSMR_FLC ((ushort)0x8000)
517 #define SCU_PSMR_SL ((ushort)0x4000)
518 #define SCU_PSMR_CL ((ushort)0x3000)
519 #define SCU_PSMR_UM ((ushort)0x0c00)
520 #define SCU_PSMR_FRZ ((ushort)0x0200)
521 #define SCU_PSMR_RZS ((ushort)0x0100)
522 #define SCU_PSMR_SYN ((ushort)0x0080)
523 #define SCU_PSMR_DRT ((ushort)0x0040)
524 #define SCU_PSMR_PEN ((ushort)0x0010)
525 #define SCU_PSMR_RPM ((ushort)0x000c)
526 #define SCU_PSMR_REVP ((ushort)0x0008)
527 #define SCU_PSMR_TPM ((ushort)0x0003)
528 #define SCU_PSMR_TEVP ((ushort)0x0002)
530 /* CPM Transparent mode SCC.
532 typedef struct scc_trans {
534 uint st_cpres; /* Preset CRC */
535 uint st_cmask; /* Constant mask for CRC */
538 #define BD_SCC_TX_LAST ((ushort)0x0800)
540 /* IIC parameter RAM.
543 ushort iic_rbase; /* Rx Buffer descriptor base address */
544 ushort iic_tbase; /* Tx Buffer descriptor base address */
545 u_char iic_rfcr; /* Rx function code */
546 u_char iic_tfcr; /* Tx function code */
547 ushort iic_mrblr; /* Max receive buffer length */
548 uint iic_rstate; /* Internal */
549 uint iic_rdp; /* Internal */
550 ushort iic_rbptr; /* Internal */
551 ushort iic_rbc; /* Internal */
552 uint iic_rxtmp; /* Internal */
553 uint iic_tstate; /* Internal */
554 uint iic_tdp; /* Internal */
555 ushort iic_tbptr; /* Internal */
556 ushort iic_tbc; /* Internal */
557 uint iic_txtmp; /* Internal */
558 char res1[4]; /* Reserved */
559 ushort iic_rpbase; /* Relocation pointer */
560 char res2[2]; /* Reserved */
563 #define BD_IIC_START ((ushort)0x0400)
565 /* SPI parameter RAM.
568 ushort spi_rbase; /* Rx Buffer descriptor base address */
569 ushort spi_tbase; /* Tx Buffer descriptor base address */
570 u_char spi_rfcr; /* Rx function code */
571 u_char spi_tfcr; /* Tx function code */
572 ushort spi_mrblr; /* Max receive buffer length */
573 uint spi_rstate; /* Internal */
574 uint spi_rdp; /* Internal */
575 ushort spi_rbptr; /* Internal */
576 ushort spi_rbc; /* Internal */
577 uint spi_rxtmp; /* Internal */
578 uint spi_tstate; /* Internal */
579 uint spi_tdp; /* Internal */
580 ushort spi_tbptr; /* Internal */
581 ushort spi_tbc; /* Internal */
582 uint spi_txtmp; /* Internal */
584 ushort spi_rpbase; /* Relocation pointer */
588 /* SPI Mode register.
590 #define SPMODE_LOOP ((ushort)0x4000) /* Loopback */
591 #define SPMODE_CI ((ushort)0x2000) /* Clock Invert */
592 #define SPMODE_CP ((ushort)0x1000) /* Clock Phase */
593 #define SPMODE_DIV16 ((ushort)0x0800) /* BRG/16 mode */
594 #define SPMODE_REV ((ushort)0x0400) /* Reversed Data */
595 #define SPMODE_MSTR ((ushort)0x0200) /* SPI Master */
596 #define SPMODE_EN ((ushort)0x0100) /* Enable */
597 #define SPMODE_LENMSK ((ushort)0x00f0) /* character length */
598 #define SPMODE_LEN4 ((ushort)0x0030) /* 4 bits per char */
599 #define SPMODE_LEN8 ((ushort)0x0070) /* 8 bits per char */
600 #define SPMODE_LEN16 ((ushort)0x00f0) /* 16 bits per char */
601 #define SPMODE_PMMSK ((ushort)0x000f) /* prescale modulus */
604 #define SPIE_MME 0x20
605 #define SPIE_TXE 0x10
606 #define SPIE_BSY 0x04
607 #define SPIE_TXB 0x02
608 #define SPIE_RXB 0x01
611 * RISC Controller Configuration Register definitons
613 #define RCCR_TIME 0x8000 /* RISC Timer Enable */
614 #define RCCR_TIMEP(t) (((t) & 0x3F)<<8) /* RISC Timer Period */
615 #define RCCR_TIME_MASK 0x00FF /* not RISC Timer related bits */
617 /* RISC Timer Parameter RAM offset */
618 #define PROFF_RTMR ((uint)0x01B0)
620 typedef struct risc_timer_pram {
621 unsigned short tm_base; /* RISC Timer Table Base Address */
622 unsigned short tm_ptr; /* RISC Timer Table Pointer (internal) */
623 unsigned short r_tmr; /* RISC Timer Mode Register */
624 unsigned short r_tmv; /* RISC Timer Valid Register */
625 unsigned long tm_cmd; /* RISC Timer Command Register */
626 unsigned long tm_cnt; /* RISC Timer Internal Count */
629 /* Bits in RISC Timer Command Register */
630 #define TM_CMD_VALID 0x80000000 /* Valid - Enables the timer */
631 #define TM_CMD_RESTART 0x40000000 /* Restart - for automatic restart */
632 #define TM_CMD_PWM 0x20000000 /* Run in Pulse Width Modulation Mode */
633 #define TM_CMD_NUM(n) (((n)&0xF)<<16) /* Timer Number */
634 #define TM_CMD_PERIOD(p) ((p)&0xFFFF) /* Timer Period */
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_PIO_PC15 ((ushort)0x1f)
645 #define CPMVEC_SCC1 ((ushort)0x1e)
646 #define CPMVEC_SCC2 ((ushort)0x1d)
647 #define CPMVEC_SCC3 ((ushort)0x1c)
648 #define CPMVEC_SCC4 ((ushort)0x1b)
649 #define CPMVEC_PIO_PC14 ((ushort)0x1a)
650 #define CPMVEC_TIMER1 ((ushort)0x19)
651 #define CPMVEC_PIO_PC13 ((ushort)0x18)
652 #define CPMVEC_PIO_PC12 ((ushort)0x17)
653 #define CPMVEC_SDMA_CB_ERR ((ushort)0x16)
654 #define CPMVEC_IDMA1 ((ushort)0x15)
655 #define CPMVEC_IDMA2 ((ushort)0x14)
656 #define CPMVEC_TIMER2 ((ushort)0x12)
657 #define CPMVEC_RISCTIMER ((ushort)0x11)
658 #define CPMVEC_I2C ((ushort)0x10)
659 #define CPMVEC_PIO_PC11 ((ushort)0x0f)
660 #define CPMVEC_PIO_PC10 ((ushort)0x0e)
661 #define CPMVEC_TIMER3 ((ushort)0x0c)
662 #define CPMVEC_PIO_PC9 ((ushort)0x0b)
663 #define CPMVEC_PIO_PC8 ((ushort)0x0a)
664 #define CPMVEC_PIO_PC7 ((ushort)0x09)
665 #define CPMVEC_TIMER4 ((ushort)0x07)
666 #define CPMVEC_PIO_PC6 ((ushort)0x06)
667 #define CPMVEC_SPI ((ushort)0x05)
668 #define CPMVEC_SMC1 ((ushort)0x04)
669 #define CPMVEC_SMC2 ((ushort)0x03)
670 #define CPMVEC_PIO_PC5 ((ushort)0x02)
671 #define CPMVEC_PIO_PC4 ((ushort)0x01)
672 #define CPMVEC_ERROR ((ushort)0x00)
674 /* CPM interrupt configuration vector.
676 #define CICR_SCD_SCC4 ((uint)0x00c00000) /* SCC4 @ SCCd */
677 #define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */
678 #define CICR_SCB_SCC2 ((uint)0x00040000) /* SCC2 @ SCCb */
679 #define CICR_SCA_SCC1 ((uint)0x00000000) /* SCC1 @ SCCa */
680 #define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrupt */
681 #define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */
682 #define CICR_IEN ((uint)0x00000080) /* Int. enable */
683 #define CICR_SPS ((uint)0x00000001) /* SCC Spread */
685 extern void cpm_install_handler(int vec, void (*handler)(void *), void *dev_id);
686 extern void cpm_free_handler(int vec);
688 #endif /* __CPM1__ */