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1/*
2 * MPC8xx Communication Processor Module.
3 * Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
4 *
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
10 * are needed. -- Dan
11 *
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
15 * or other use.
16 */
17#ifndef __CPM_8XX__
18#define __CPM_8XX__
19
20#include <asm/8xx_immap.h>
21#include <asm/ptrace.h>
22
23/* CPM Command register.
24*/
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)
29
30/* Some commands (there are more...later)
31*/
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
42
43/* Channel numbers.
44*/
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 */
54
55#define mk_cr_cmd(CH, CMD) ((CMD << 8) | (CH << 4))
56
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.
61 */
62#define CPM_DATAONLY_BASE ((uint)0x0800)
63#define CPM_DATAONLY_SIZE ((uint)0x0700)
64#define CPM_DP_NOSPACE ((uint)0x7fffffff)
65
66/* Export the base address of the communication processor registers
67 * and dual port ram.
68 */
69extern cpm8xx_t *cpmp; /* Pointer to comm processor */
70extern unsigned long cpm_dpalloc(uint size, uint align);
71extern int cpm_dpfree(unsigned long offset);
72extern unsigned long cpm_dpalloc_fixed(unsigned long offset, uint size, uint align);
73extern void cpm_dpdump(void);
74extern void *cpm_dpram_addr(unsigned long offset);
75extern uint cpm_dpram_phys(u8* addr);
76extern void cpm_setbrg(uint brg, uint rate);
77
78extern uint m8xx_cpm_hostalloc(uint size);
79extern int m8xx_cpm_hostfree(uint start);
80extern void m8xx_cpm_hostdump(void);
81
82extern void cpm_load_patch(volatile immap_t *immr);
83
84/* Buffer descriptors used by many of the CPM protocols.
85*/
86typedef struct cpm_buf_desc {
87 ushort cbd_sc; /* Status and Control */
88 ushort cbd_datlen; /* Data length in buffer */
89 uint cbd_bufaddr; /* Buffer address in host memory */
90} cbd_t;
91
92#define BD_SC_EMPTY ((ushort)0x8000) /* Receive is empty */
93#define BD_SC_READY ((ushort)0x8000) /* Transmit is ready */
94#define BD_SC_WRAP ((ushort)0x2000) /* Last buffer descriptor */
95#define BD_SC_INTRPT ((ushort)0x1000) /* Interrupt on change */
96#define BD_SC_LAST ((ushort)0x0800) /* Last buffer in frame */
97#define BD_SC_TC ((ushort)0x0400) /* Transmit CRC */
98#define BD_SC_CM ((ushort)0x0200) /* Continous mode */
99#define BD_SC_ID ((ushort)0x0100) /* Rec'd too many idles */
100#define BD_SC_P ((ushort)0x0100) /* xmt preamble */
101#define BD_SC_BR ((ushort)0x0020) /* Break received */
102#define BD_SC_FR ((ushort)0x0010) /* Framing error */
103#define BD_SC_PR ((ushort)0x0008) /* Parity error */
104#define BD_SC_NAK ((ushort)0x0004) /* NAK - did not respond */
105#define BD_SC_OV ((ushort)0x0002) /* Overrun */
106#define BD_SC_UN ((ushort)0x0002) /* Underrun */
107#define BD_SC_CD ((ushort)0x0001) /* ?? */
108#define BD_SC_CL ((ushort)0x0001) /* Collision */
109
110/* Parameter RAM offsets.
111*/
112#define PROFF_SCC1 ((uint)0x0000)
113#define PROFF_IIC ((uint)0x0080)
114#define PROFF_SCC2 ((uint)0x0100)
115#define PROFF_SPI ((uint)0x0180)
116#define PROFF_SCC3 ((uint)0x0200)
117#define PROFF_SMC1 ((uint)0x0280)
118#define PROFF_SCC4 ((uint)0x0300)
119#define PROFF_SMC2 ((uint)0x0380)
120
121/* Define enough so I can at least use the serial port as a UART.
122 * The MBX uses SMC1 as the host serial port.
123 */
124typedef struct smc_uart {
125 ushort smc_rbase; /* Rx Buffer descriptor base address */
126 ushort smc_tbase; /* Tx Buffer descriptor base address */
127 u_char smc_rfcr; /* Rx function code */
128 u_char smc_tfcr; /* Tx function code */
129 ushort smc_mrblr; /* Max receive buffer length */
130 uint smc_rstate; /* Internal */
131 uint smc_idp; /* Internal */
132 ushort smc_rbptr; /* Internal */
133 ushort smc_ibc; /* Internal */
134 uint smc_rxtmp; /* Internal */
135 uint smc_tstate; /* Internal */
136 uint smc_tdp; /* Internal */
137 ushort smc_tbptr; /* Internal */
138 ushort smc_tbc; /* Internal */
139 uint smc_txtmp; /* Internal */
140 ushort smc_maxidl; /* Maximum idle characters */
141 ushort smc_tmpidl; /* Temporary idle counter */
142 ushort smc_brklen; /* Last received break length */
143 ushort smc_brkec; /* rcv'd break condition counter */
144 ushort smc_brkcr; /* xmt break count register */
145 ushort smc_rmask; /* Temporary bit mask */
146 char res1[8]; /* Reserved */
147 ushort smc_rpbase; /* Relocation pointer */
148} smc_uart_t;
149
150/* Function code bits.
151*/
152#define SMC_EB ((u_char)0x10) /* Set big endian byte order */
153
154/* SMC uart mode register.
155*/
156#define SMCMR_REN ((ushort)0x0001)
157#define SMCMR_TEN ((ushort)0x0002)
158#define SMCMR_DM ((ushort)0x000c)
159#define SMCMR_SM_GCI ((ushort)0x0000)
160#define SMCMR_SM_UART ((ushort)0x0020)
161#define SMCMR_SM_TRANS ((ushort)0x0030)
162#define SMCMR_SM_MASK ((ushort)0x0030)
163#define SMCMR_PM_EVEN ((ushort)0x0100) /* Even parity, else odd */
164#define SMCMR_REVD SMCMR_PM_EVEN
165#define SMCMR_PEN ((ushort)0x0200) /* Parity enable */
166#define SMCMR_BS SMCMR_PEN
167#define SMCMR_SL ((ushort)0x0400) /* Two stops, else one */
168#define SMCR_CLEN_MASK ((ushort)0x7800) /* Character length */
169#define smcr_mk_clen(C) (((C) << 11) & SMCR_CLEN_MASK)
170
171/* SMC2 as Centronics parallel printer. It is half duplex, in that
172 * it can only receive or transmit. The parameter ram values for
173 * each direction are either unique or properly overlap, so we can
174 * include them in one structure.
175 */
176typedef struct smc_centronics {
177 ushort scent_rbase;
178 ushort scent_tbase;
179 u_char scent_cfcr;
180 u_char scent_smask;
181 ushort scent_mrblr;
182 uint scent_rstate;
183 uint scent_r_ptr;
184 ushort scent_rbptr;
185 ushort scent_r_cnt;
186 uint scent_rtemp;
187 uint scent_tstate;
188 uint scent_t_ptr;
189 ushort scent_tbptr;
190 ushort scent_t_cnt;
191 uint scent_ttemp;
192 ushort scent_max_sl;
193 ushort scent_sl_cnt;
194 ushort scent_character1;
195 ushort scent_character2;
196 ushort scent_character3;
197 ushort scent_character4;
198 ushort scent_character5;
199 ushort scent_character6;
200 ushort scent_character7;
201 ushort scent_character8;
202 ushort scent_rccm;
203 ushort scent_rccr;
204} smc_cent_t;
205
206/* Centronics Status Mask Register.
207*/
208#define SMC_CENT_F ((u_char)0x08)
209#define SMC_CENT_PE ((u_char)0x04)
210#define SMC_CENT_S ((u_char)0x02)
211
212/* SMC Event and Mask register.
213*/
214#define SMCM_BRKE ((unsigned char)0x40) /* When in UART Mode */
215#define SMCM_BRK ((unsigned char)0x10) /* When in UART Mode */
216#define SMCM_TXE ((unsigned char)0x10) /* When in Transparent Mode */
217#define SMCM_BSY ((unsigned char)0x04)
218#define SMCM_TX ((unsigned char)0x02)
219#define SMCM_RX ((unsigned char)0x01)
220
221/* Baud rate generators.
222*/
223#define CPM_BRG_RST ((uint)0x00020000)
224#define CPM_BRG_EN ((uint)0x00010000)
225#define CPM_BRG_EXTC_INT ((uint)0x00000000)
226#define CPM_BRG_EXTC_CLK2 ((uint)0x00004000)
227#define CPM_BRG_EXTC_CLK6 ((uint)0x00008000)
228#define CPM_BRG_ATB ((uint)0x00002000)
229#define CPM_BRG_CD_MASK ((uint)0x00001ffe)
230#define CPM_BRG_DIV16 ((uint)0x00000001)
231
232/* SI Clock Route Register
233*/
234#define SICR_RCLK_SCC1_BRG1 ((uint)0x00000000)
235#define SICR_TCLK_SCC1_BRG1 ((uint)0x00000000)
236#define SICR_RCLK_SCC2_BRG2 ((uint)0x00000800)
237#define SICR_TCLK_SCC2_BRG2 ((uint)0x00000100)
238#define SICR_RCLK_SCC3_BRG3 ((uint)0x00100000)
239#define SICR_TCLK_SCC3_BRG3 ((uint)0x00020000)
240#define SICR_RCLK_SCC4_BRG4 ((uint)0x18000000)
241#define SICR_TCLK_SCC4_BRG4 ((uint)0x03000000)
242
243/* SCCs.
244*/
245#define SCC_GSMRH_IRP ((uint)0x00040000)
246#define SCC_GSMRH_GDE ((uint)0x00010000)
247#define SCC_GSMRH_TCRC_CCITT ((uint)0x00008000)
248#define SCC_GSMRH_TCRC_BISYNC ((uint)0x00004000)
249#define SCC_GSMRH_TCRC_HDLC ((uint)0x00000000)
250#define SCC_GSMRH_REVD ((uint)0x00002000)
251#define SCC_GSMRH_TRX ((uint)0x00001000)
252#define SCC_GSMRH_TTX ((uint)0x00000800)
253#define SCC_GSMRH_CDP ((uint)0x00000400)
254#define SCC_GSMRH_CTSP ((uint)0x00000200)
255#define SCC_GSMRH_CDS ((uint)0x00000100)
256#define SCC_GSMRH_CTSS ((uint)0x00000080)
257#define SCC_GSMRH_TFL ((uint)0x00000040)
258#define SCC_GSMRH_RFW ((uint)0x00000020)
259#define SCC_GSMRH_TXSY ((uint)0x00000010)
260#define SCC_GSMRH_SYNL16 ((uint)0x0000000c)
261#define SCC_GSMRH_SYNL8 ((uint)0x00000008)
262#define SCC_GSMRH_SYNL4 ((uint)0x00000004)
263#define SCC_GSMRH_RTSM ((uint)0x00000002)
264#define SCC_GSMRH_RSYN ((uint)0x00000001)
265
266#define SCC_GSMRL_SIR ((uint)0x80000000) /* SCC2 only */
267#define SCC_GSMRL_EDGE_NONE ((uint)0x60000000)
268#define SCC_GSMRL_EDGE_NEG ((uint)0x40000000)
269#define SCC_GSMRL_EDGE_POS ((uint)0x20000000)
270#define SCC_GSMRL_EDGE_BOTH ((uint)0x00000000)
271#define SCC_GSMRL_TCI ((uint)0x10000000)
272#define SCC_GSMRL_TSNC_3 ((uint)0x0c000000)
273#define SCC_GSMRL_TSNC_4 ((uint)0x08000000)
274#define SCC_GSMRL_TSNC_14 ((uint)0x04000000)
275#define SCC_GSMRL_TSNC_INF ((uint)0x00000000)
276#define SCC_GSMRL_RINV ((uint)0x02000000)
277#define SCC_GSMRL_TINV ((uint)0x01000000)
278#define SCC_GSMRL_TPL_128 ((uint)0x00c00000)
279#define SCC_GSMRL_TPL_64 ((uint)0x00a00000)
280#define SCC_GSMRL_TPL_48 ((uint)0x00800000)
281#define SCC_GSMRL_TPL_32 ((uint)0x00600000)
282#define SCC_GSMRL_TPL_16 ((uint)0x00400000)
283#define SCC_GSMRL_TPL_8 ((uint)0x00200000)
284#define SCC_GSMRL_TPL_NONE ((uint)0x00000000)
285#define SCC_GSMRL_TPP_ALL1 ((uint)0x00180000)
286#define SCC_GSMRL_TPP_01 ((uint)0x00100000)
287#define SCC_GSMRL_TPP_10 ((uint)0x00080000)
288#define SCC_GSMRL_TPP_ZEROS ((uint)0x00000000)
289#define SCC_GSMRL_TEND ((uint)0x00040000)
290#define SCC_GSMRL_TDCR_32 ((uint)0x00030000)
291#define SCC_GSMRL_TDCR_16 ((uint)0x00020000)
292#define SCC_GSMRL_TDCR_8 ((uint)0x00010000)
293#define SCC_GSMRL_TDCR_1 ((uint)0x00000000)
294#define SCC_GSMRL_RDCR_32 ((uint)0x0000c000)
295#define SCC_GSMRL_RDCR_16 ((uint)0x00008000)
296#define SCC_GSMRL_RDCR_8 ((uint)0x00004000)
297#define SCC_GSMRL_RDCR_1 ((uint)0x00000000)
298#define SCC_GSMRL_RENC_DFMAN ((uint)0x00003000)
299#define SCC_GSMRL_RENC_MANCH ((uint)0x00002000)
300#define SCC_GSMRL_RENC_FM0 ((uint)0x00001000)
301#define SCC_GSMRL_RENC_NRZI ((uint)0x00000800)
302#define SCC_GSMRL_RENC_NRZ ((uint)0x00000000)
303#define SCC_GSMRL_TENC_DFMAN ((uint)0x00000600)
304#define SCC_GSMRL_TENC_MANCH ((uint)0x00000400)
305#define SCC_GSMRL_TENC_FM0 ((uint)0x00000200)
306#define SCC_GSMRL_TENC_NRZI ((uint)0x00000100)
307#define SCC_GSMRL_TENC_NRZ ((uint)0x00000000)
308#define SCC_GSMRL_DIAG_LE ((uint)0x000000c0) /* Loop and echo */
309#define SCC_GSMRL_DIAG_ECHO ((uint)0x00000080)
310#define SCC_GSMRL_DIAG_LOOP ((uint)0x00000040)
311#define SCC_GSMRL_DIAG_NORM ((uint)0x00000000)
312#define SCC_GSMRL_ENR ((uint)0x00000020)
313#define SCC_GSMRL_ENT ((uint)0x00000010)
314#define SCC_GSMRL_MODE_ENET ((uint)0x0000000c)
315#define SCC_GSMRL_MODE_QMC ((uint)0x0000000a)
316#define SCC_GSMRL_MODE_DDCMP ((uint)0x00000009)
317#define SCC_GSMRL_MODE_BISYNC ((uint)0x00000008)
318#define SCC_GSMRL_MODE_V14 ((uint)0x00000007)
319#define SCC_GSMRL_MODE_AHDLC ((uint)0x00000006)
320#define SCC_GSMRL_MODE_PROFIBUS ((uint)0x00000005)
321#define SCC_GSMRL_MODE_UART ((uint)0x00000004)
322#define SCC_GSMRL_MODE_SS7 ((uint)0x00000003)
323#define SCC_GSMRL_MODE_ATALK ((uint)0x00000002)
324#define SCC_GSMRL_MODE_HDLC ((uint)0x00000000)
325
326#define SCC_TODR_TOD ((ushort)0x8000)
327
328/* SCC Event and Mask register.
329*/
330#define SCCM_TXE ((unsigned char)0x10)
331#define SCCM_BSY ((unsigned char)0x04)
332#define SCCM_TX ((unsigned char)0x02)
333#define SCCM_RX ((unsigned char)0x01)
334
335typedef struct scc_param {
336 ushort scc_rbase; /* Rx Buffer descriptor base address */
337 ushort scc_tbase; /* Tx Buffer descriptor base address */
338 u_char scc_rfcr; /* Rx function code */
339 u_char scc_tfcr; /* Tx function code */
340 ushort scc_mrblr; /* Max receive buffer length */
341 uint scc_rstate; /* Internal */
342 uint scc_idp; /* Internal */
343 ushort scc_rbptr; /* Internal */
344 ushort scc_ibc; /* Internal */
345 uint scc_rxtmp; /* Internal */
346 uint scc_tstate; /* Internal */
347 uint scc_tdp; /* Internal */
348 ushort scc_tbptr; /* Internal */
349 ushort scc_tbc; /* Internal */
350 uint scc_txtmp; /* Internal */
351 uint scc_rcrc; /* Internal */
352 uint scc_tcrc; /* Internal */
353} sccp_t;
354
355/* Function code bits.
356*/
357#define SCC_EB ((u_char)0x10) /* Set big endian byte order */
358
359/* CPM Ethernet through SCCx.
360 */
361typedef struct scc_enet {
362 sccp_t sen_genscc;
363 uint sen_cpres; /* Preset CRC */
364 uint sen_cmask; /* Constant mask for CRC */
365 uint sen_crcec; /* CRC Error counter */
366 uint sen_alec; /* alignment error counter */
367 uint sen_disfc; /* discard frame counter */
368 ushort sen_pads; /* Tx short frame pad character */
369 ushort sen_retlim; /* Retry limit threshold */
370 ushort sen_retcnt; /* Retry limit counter */
371 ushort sen_maxflr; /* maximum frame length register */
372 ushort sen_minflr; /* minimum frame length register */
373 ushort sen_maxd1; /* maximum DMA1 length */
374 ushort sen_maxd2; /* maximum DMA2 length */
375 ushort sen_maxd; /* Rx max DMA */
376 ushort sen_dmacnt; /* Rx DMA counter */
377 ushort sen_maxb; /* Max BD byte count */
378 ushort sen_gaddr1; /* Group address filter */
379 ushort sen_gaddr2;
380 ushort sen_gaddr3;
381 ushort sen_gaddr4;
382 uint sen_tbuf0data0; /* Save area 0 - current frame */
383 uint sen_tbuf0data1; /* Save area 1 - current frame */
384 uint sen_tbuf0rba; /* Internal */
385 uint sen_tbuf0crc; /* Internal */
386 ushort sen_tbuf0bcnt; /* Internal */
387 ushort sen_paddrh; /* physical address (MSB) */
388 ushort sen_paddrm;
389 ushort sen_paddrl; /* physical address (LSB) */
390 ushort sen_pper; /* persistence */
391 ushort sen_rfbdptr; /* Rx first BD pointer */
392 ushort sen_tfbdptr; /* Tx first BD pointer */
393 ushort sen_tlbdptr; /* Tx last BD pointer */
394 uint sen_tbuf1data0; /* Save area 0 - current frame */
395 uint sen_tbuf1data1; /* Save area 1 - current frame */
396 uint sen_tbuf1rba; /* Internal */
397 uint sen_tbuf1crc; /* Internal */
398 ushort sen_tbuf1bcnt; /* Internal */
399 ushort sen_txlen; /* Tx Frame length counter */
400 ushort sen_iaddr1; /* Individual address filter */
401 ushort sen_iaddr2;
402 ushort sen_iaddr3;
403 ushort sen_iaddr4;
404 ushort sen_boffcnt; /* Backoff counter */
405
406 /* NOTE: Some versions of the manual have the following items
407 * incorrectly documented. Below is the proper order.
408 */
409 ushort sen_taddrh; /* temp address (MSB) */
410 ushort sen_taddrm;
411 ushort sen_taddrl; /* temp address (LSB) */
412} scc_enet_t;
413
414/* SCC Event register as used by Ethernet.
415*/
416#define SCCE_ENET_GRA ((ushort)0x0080) /* Graceful stop complete */
417#define SCCE_ENET_TXE ((ushort)0x0010) /* Transmit Error */
418#define SCCE_ENET_RXF ((ushort)0x0008) /* Full frame received */
419#define SCCE_ENET_BSY ((ushort)0x0004) /* All incoming buffers full */
420#define SCCE_ENET_TXB ((ushort)0x0002) /* A buffer was transmitted */
421#define SCCE_ENET_RXB ((ushort)0x0001) /* A buffer was received */
422
423/* SCC Mode Register (PMSR) as used by Ethernet.
424*/
425#define SCC_PSMR_HBC ((ushort)0x8000) /* Enable heartbeat */
426#define SCC_PSMR_FC ((ushort)0x4000) /* Force collision */
427#define SCC_PSMR_RSH ((ushort)0x2000) /* Receive short frames */
428#define SCC_PSMR_IAM ((ushort)0x1000) /* Check individual hash */
429#define SCC_PSMR_ENCRC ((ushort)0x0800) /* Ethernet CRC mode */
430#define SCC_PSMR_PRO ((ushort)0x0200) /* Promiscuous mode */
431#define SCC_PSMR_BRO ((ushort)0x0100) /* Catch broadcast pkts */
432#define SCC_PSMR_SBT ((ushort)0x0080) /* Special backoff timer */
433#define SCC_PSMR_LPB ((ushort)0x0040) /* Set Loopback mode */
434#define SCC_PSMR_SIP ((ushort)0x0020) /* Sample Input Pins */
435#define SCC_PSMR_LCW ((ushort)0x0010) /* Late collision window */
436#define SCC_PSMR_NIB22 ((ushort)0x000a) /* Start frame search */
437#define SCC_PSMR_FDE ((ushort)0x0001) /* Full duplex enable */
438
439/* Buffer descriptor control/status used by Ethernet receive.
440*/
441#define BD_ENET_RX_EMPTY ((ushort)0x8000)
442#define BD_ENET_RX_WRAP ((ushort)0x2000)
443#define BD_ENET_RX_INTR ((ushort)0x1000)
444#define BD_ENET_RX_LAST ((ushort)0x0800)
445#define BD_ENET_RX_FIRST ((ushort)0x0400)
446#define BD_ENET_RX_MISS ((ushort)0x0100)
447#define BD_ENET_RX_LG ((ushort)0x0020)
448#define BD_ENET_RX_NO ((ushort)0x0010)
449#define BD_ENET_RX_SH ((ushort)0x0008)
450#define BD_ENET_RX_CR ((ushort)0x0004)
451#define BD_ENET_RX_OV ((ushort)0x0002)
452#define BD_ENET_RX_CL ((ushort)0x0001)
453#define BD_ENET_RX_BC ((ushort)0x0080) /* DA is Broadcast */
454#define BD_ENET_RX_MC ((ushort)0x0040) /* DA is Multicast */
455#define BD_ENET_RX_STATS ((ushort)0x013f) /* All status bits */
456
457/* Buffer descriptor control/status used by Ethernet transmit.
458*/
459#define BD_ENET_TX_READY ((ushort)0x8000)
460#define BD_ENET_TX_PAD ((ushort)0x4000)
461#define BD_ENET_TX_WRAP ((ushort)0x2000)
462#define BD_ENET_TX_INTR ((ushort)0x1000)
463#define BD_ENET_TX_LAST ((ushort)0x0800)
464#define BD_ENET_TX_TC ((ushort)0x0400)
465#define BD_ENET_TX_DEF ((ushort)0x0200)
466#define BD_ENET_TX_HB ((ushort)0x0100)
467#define BD_ENET_TX_LC ((ushort)0x0080)
468#define BD_ENET_TX_RL ((ushort)0x0040)
469#define BD_ENET_TX_RCMASK ((ushort)0x003c)
470#define BD_ENET_TX_UN ((ushort)0x0002)
471#define BD_ENET_TX_CSL ((ushort)0x0001)
472#define BD_ENET_TX_STATS ((ushort)0x03ff) /* All status bits */
473
474/* SCC as UART
475*/
476typedef struct scc_uart {
477 sccp_t scc_genscc;
478 char res1[8]; /* Reserved */
479 ushort scc_maxidl; /* Maximum idle chars */
480 ushort scc_idlc; /* temp idle counter */
481 ushort scc_brkcr; /* Break count register */
482 ushort scc_parec; /* receive parity error counter */
483 ushort scc_frmec; /* receive framing error counter */
484 ushort scc_nosec; /* receive noise counter */
485 ushort scc_brkec; /* receive break condition counter */
486 ushort scc_brkln; /* last received break length */
487 ushort scc_uaddr1; /* UART address character 1 */
488 ushort scc_uaddr2; /* UART address character 2 */
489 ushort scc_rtemp; /* Temp storage */
490 ushort scc_toseq; /* Transmit out of sequence char */
491 ushort scc_char1; /* control character 1 */
492 ushort scc_char2; /* control character 2 */
493 ushort scc_char3; /* control character 3 */
494 ushort scc_char4; /* control character 4 */
495 ushort scc_char5; /* control character 5 */
496 ushort scc_char6; /* control character 6 */
497 ushort scc_char7; /* control character 7 */
498 ushort scc_char8; /* control character 8 */
499 ushort scc_rccm; /* receive control character mask */
500 ushort scc_rccr; /* receive control character register */
501 ushort scc_rlbc; /* receive last break character */
502} scc_uart_t;
503
504/* SCC Event and Mask registers when it is used as a UART.
505*/
506#define UART_SCCM_GLR ((ushort)0x1000)
507#define UART_SCCM_GLT ((ushort)0x0800)
508#define UART_SCCM_AB ((ushort)0x0200)
509#define UART_SCCM_IDL ((ushort)0x0100)
510#define UART_SCCM_GRA ((ushort)0x0080)
511#define UART_SCCM_BRKE ((ushort)0x0040)
512#define UART_SCCM_BRKS ((ushort)0x0020)
513#define UART_SCCM_CCR ((ushort)0x0008)
514#define UART_SCCM_BSY ((ushort)0x0004)
515#define UART_SCCM_TX ((ushort)0x0002)
516#define UART_SCCM_RX ((ushort)0x0001)
517
518/* The SCC PMSR when used as a UART.
519*/
520#define SCU_PSMR_FLC ((ushort)0x8000)
521#define SCU_PSMR_SL ((ushort)0x4000)
522#define SCU_PSMR_CL ((ushort)0x3000)
523#define SCU_PSMR_UM ((ushort)0x0c00)
524#define SCU_PSMR_FRZ ((ushort)0x0200)
525#define SCU_PSMR_RZS ((ushort)0x0100)
526#define SCU_PSMR_SYN ((ushort)0x0080)
527#define SCU_PSMR_DRT ((ushort)0x0040)
528#define SCU_PSMR_PEN ((ushort)0x0010)
529#define SCU_PSMR_RPM ((ushort)0x000c)
530#define SCU_PSMR_REVP ((ushort)0x0008)
531#define SCU_PSMR_TPM ((ushort)0x0003)
532#define SCU_PSMR_TEVP ((ushort)0x0002)
533
534/* CPM Transparent mode SCC.
535 */
536typedef struct scc_trans {
537 sccp_t st_genscc;
538 uint st_cpres; /* Preset CRC */
539 uint st_cmask; /* Constant mask for CRC */
540} scc_trans_t;
541
542#define BD_SCC_TX_LAST ((ushort)0x0800)
543
544/* IIC parameter RAM.
545*/
546typedef struct iic {
547 ushort iic_rbase; /* Rx Buffer descriptor base address */
548 ushort iic_tbase; /* Tx Buffer descriptor base address */
549 u_char iic_rfcr; /* Rx function code */
550 u_char iic_tfcr; /* Tx function code */
551 ushort iic_mrblr; /* Max receive buffer length */
552 uint iic_rstate; /* Internal */
553 uint iic_rdp; /* Internal */
554 ushort iic_rbptr; /* Internal */
555 ushort iic_rbc; /* Internal */
556 uint iic_rxtmp; /* Internal */
557 uint iic_tstate; /* Internal */
558 uint iic_tdp; /* Internal */
559 ushort iic_tbptr; /* Internal */
560 ushort iic_tbc; /* Internal */
561 uint iic_txtmp; /* Internal */
562 char res1[4]; /* Reserved */
563 ushort iic_rpbase; /* Relocation pointer */
564 char res2[2]; /* Reserved */
565} iic_t;
566
567#define BD_IIC_START ((ushort)0x0400)
568
569/* SPI parameter RAM.
570*/
571typedef struct spi {
572 ushort spi_rbase; /* Rx Buffer descriptor base address */
573 ushort spi_tbase; /* Tx Buffer descriptor base address */
574 u_char spi_rfcr; /* Rx function code */
575 u_char spi_tfcr; /* Tx function code */
576 ushort spi_mrblr; /* Max receive buffer length */
577 uint spi_rstate; /* Internal */
578 uint spi_rdp; /* Internal */
579 ushort spi_rbptr; /* Internal */
580 ushort spi_rbc; /* Internal */
581 uint spi_rxtmp; /* Internal */
582 uint spi_tstate; /* Internal */
583 uint spi_tdp; /* Internal */
584 ushort spi_tbptr; /* Internal */
585 ushort spi_tbc; /* Internal */
586 uint spi_txtmp; /* Internal */
587 uint spi_res;
588 ushort spi_rpbase; /* Relocation pointer */
589 ushort spi_res2;
590} spi_t;
591
592/* SPI Mode register.
593*/
594#define SPMODE_LOOP ((ushort)0x4000) /* Loopback */
595#define SPMODE_CI ((ushort)0x2000) /* Clock Invert */
596#define SPMODE_CP ((ushort)0x1000) /* Clock Phase */
597#define SPMODE_DIV16 ((ushort)0x0800) /* BRG/16 mode */
598#define SPMODE_REV ((ushort)0x0400) /* Reversed Data */
599#define SPMODE_MSTR ((ushort)0x0200) /* SPI Master */
600#define SPMODE_EN ((ushort)0x0100) /* Enable */
601#define SPMODE_LENMSK ((ushort)0x00f0) /* character length */
602#define SPMODE_LEN4 ((ushort)0x0030) /* 4 bits per char */
603#define SPMODE_LEN8 ((ushort)0x0070) /* 8 bits per char */
604#define SPMODE_LEN16 ((ushort)0x00f0) /* 16 bits per char */
605#define SPMODE_PMMSK ((ushort)0x000f) /* prescale modulus */
606
607/* SPIE fields */
608#define SPIE_MME 0x20
609#define SPIE_TXE 0x10
610#define SPIE_BSY 0x04
611#define SPIE_TXB 0x02
612#define SPIE_RXB 0x01
613
614/*
615 * RISC Controller Configuration Register definitons
616 */
617#define RCCR_TIME 0x8000 /* RISC Timer Enable */
618#define RCCR_TIMEP(t) (((t) & 0x3F)<<8) /* RISC Timer Period */
619#define RCCR_TIME_MASK 0x00FF /* not RISC Timer related bits */
620
621/* RISC Timer Parameter RAM offset */
622#define PROFF_RTMR ((uint)0x01B0)
623
624typedef struct risc_timer_pram {
625 unsigned short tm_base; /* RISC Timer Table Base Address */
626 unsigned short tm_ptr; /* RISC Timer Table Pointer (internal) */
627 unsigned short r_tmr; /* RISC Timer Mode Register */
628 unsigned short r_tmv; /* RISC Timer Valid Register */
629 unsigned long tm_cmd; /* RISC Timer Command Register */
630 unsigned long tm_cnt; /* RISC Timer Internal Count */
631} rt_pram_t;
632
633/* Bits in RISC Timer Command Register */
634#define TM_CMD_VALID 0x80000000 /* Valid - Enables the timer */
635#define TM_CMD_RESTART 0x40000000 /* Restart - for automatic restart */
636#define TM_CMD_PWM 0x20000000 /* Run in Pulse Width Modulation Mode */
637#define TM_CMD_NUM(n) (((n)&0xF)<<16) /* Timer Number */
638#define TM_CMD_PERIOD(p) ((p)&0xFFFF) /* Timer Period */
639
640/* CPM interrupts. There are nearly 32 interrupts generated by CPM
641 * channels or devices. All of these are presented to the PPC core
642 * as a single interrupt. The CPM interrupt handler dispatches its
643 * own handlers, in a similar fashion to the PPC core handler. We
644 * use the table as defined in the manuals (i.e. no special high
645 * priority and SCC1 == SCCa, etc...).
646 */
647#define CPMVEC_NR 32
648#define CPMVEC_PIO_PC15 ((ushort)0x1f)
649#define CPMVEC_SCC1 ((ushort)0x1e)
650#define CPMVEC_SCC2 ((ushort)0x1d)
651#define CPMVEC_SCC3 ((ushort)0x1c)
652#define CPMVEC_SCC4 ((ushort)0x1b)
653#define CPMVEC_PIO_PC14 ((ushort)0x1a)
654#define CPMVEC_TIMER1 ((ushort)0x19)
655#define CPMVEC_PIO_PC13 ((ushort)0x18)
656#define CPMVEC_PIO_PC12 ((ushort)0x17)
657#define CPMVEC_SDMA_CB_ERR ((ushort)0x16)
658#define CPMVEC_IDMA1 ((ushort)0x15)
659#define CPMVEC_IDMA2 ((ushort)0x14)
660#define CPMVEC_TIMER2 ((ushort)0x12)
661#define CPMVEC_RISCTIMER ((ushort)0x11)
662#define CPMVEC_I2C ((ushort)0x10)
663#define CPMVEC_PIO_PC11 ((ushort)0x0f)
664#define CPMVEC_PIO_PC10 ((ushort)0x0e)
665#define CPMVEC_TIMER3 ((ushort)0x0c)
666#define CPMVEC_PIO_PC9 ((ushort)0x0b)
667#define CPMVEC_PIO_PC8 ((ushort)0x0a)
668#define CPMVEC_PIO_PC7 ((ushort)0x09)
669#define CPMVEC_TIMER4 ((ushort)0x07)
670#define CPMVEC_PIO_PC6 ((ushort)0x06)
671#define CPMVEC_SPI ((ushort)0x05)
672#define CPMVEC_SMC1 ((ushort)0x04)
673#define CPMVEC_SMC2 ((ushort)0x03)
674#define CPMVEC_PIO_PC5 ((ushort)0x02)
675#define CPMVEC_PIO_PC4 ((ushort)0x01)
676#define CPMVEC_ERROR ((ushort)0x00)
677
678/* CPM interrupt configuration vector.
679*/
680#define CICR_SCD_SCC4 ((uint)0x00c00000) /* SCC4 @ SCCd */
681#define CICR_SCC_SCC3 ((uint)0x00200000) /* SCC3 @ SCCc */
682#define CICR_SCB_SCC2 ((uint)0x00040000) /* SCC2 @ SCCb */
683#define CICR_SCA_SCC1 ((uint)0x00000000) /* SCC1 @ SCCa */
684#define CICR_IRL_MASK ((uint)0x0000e000) /* Core interrrupt */
685#define CICR_HP_MASK ((uint)0x00001f00) /* Hi-pri int. */
686#define CICR_IEN ((uint)0x00000080) /* Int. enable */
687#define CICR_SPS ((uint)0x00000001) /* SCC Spread */
688
689extern void cpm_install_handler(int vec, void (*handler)(void *), void *dev_id);
690extern void cpm_free_handler(int vec);
691
692#endif /* __CPM_8XX__ */
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