xref: /openbmc/linux/arch/powerpc/include/asm/cpm1.h (revision 1e78f723)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * MPC8xx Communication Processor Module.
4  * Copyright (c) 1997 Dan Malek (dmalek@jlc.net)
5  *
6  * This file contains structures and information for the communication
7  * processor channels.  Some CPM control and status is available
8  * through the MPC8xx internal memory map.  See immap.h for details.
9  * This file only contains what I need for the moment, not the total
10  * CPM capabilities.  I (or someone else) will add definitions as they
11  * are needed.  -- Dan
12  *
13  * On the MBX board, EPPC-Bug loads CPM microcode into the first 512
14  * bytes of the DP RAM and relocates the I2C parameter area to the
15  * IDMA1 space.  The remaining DP RAM is available for buffer descriptors
16  * or other use.
17  */
18 #ifndef __CPM1__
19 #define __CPM1__
20 
21 #include <linux/init.h>
22 #include <asm/8xx_immap.h>
23 #include <asm/ptrace.h>
24 #include <asm/cpm.h>
25 
26 /* CPM Command register.
27 */
28 #define CPM_CR_RST	((ushort)0x8000)
29 #define CPM_CR_OPCODE	((ushort)0x0f00)
30 #define CPM_CR_CHAN	((ushort)0x00f0)
31 #define CPM_CR_FLG	((ushort)0x0001)
32 
33 /* Channel numbers.
34 */
35 #define CPM_CR_CH_SCC1		((ushort)0x0000)
36 #define CPM_CR_CH_I2C		((ushort)0x0001)	/* I2C and IDMA1 */
37 #define CPM_CR_CH_SCC2		((ushort)0x0004)
38 #define CPM_CR_CH_SPI		((ushort)0x0005)	/* SPI / IDMA2 / Timers */
39 #define CPM_CR_CH_TIMER		CPM_CR_CH_SPI
40 #define CPM_CR_CH_SCC3		((ushort)0x0008)
41 #define CPM_CR_CH_SMC1		((ushort)0x0009)	/* SMC1 / DSP1 */
42 #define CPM_CR_CH_SCC4		((ushort)0x000c)
43 #define CPM_CR_CH_SMC2		((ushort)0x000d)	/* SMC2 / DSP2 */
44 
45 #define mk_cr_cmd(CH, CMD)	((CMD << 8) | (CH << 4))
46 
47 /* Export the base address of the communication processor registers
48  * and dual port ram.
49  */
50 extern cpm8xx_t __iomem *cpmp; /* Pointer to comm processor */
51 
52 #define cpm_dpalloc cpm_muram_alloc
53 #define cpm_dpfree cpm_muram_free
54 #define cpm_dpram_addr cpm_muram_addr
55 #define cpm_dpram_phys cpm_muram_dma
56 
57 extern void cpm_setbrg(uint brg, uint rate);
58 
59 extern void __init cpm_load_patch(cpm8xx_t *cp);
60 
61 extern void cpm_reset(void);
62 
63 /* Parameter RAM offsets.
64 */
65 #define PROFF_SCC1	((uint)0x0000)
66 #define PROFF_IIC	((uint)0x0080)
67 #define PROFF_SCC2	((uint)0x0100)
68 #define PROFF_SPI	((uint)0x0180)
69 #define PROFF_SCC3	((uint)0x0200)
70 #define PROFF_SMC1	((uint)0x0280)
71 #define PROFF_DSP1	((uint)0x02c0)
72 #define PROFF_SCC4	((uint)0x0300)
73 #define PROFF_SMC2	((uint)0x0380)
74 
75 /* Define enough so I can at least use the serial port as a UART.
76  * The MBX uses SMC1 as the host serial port.
77  */
78 typedef struct smc_uart {
79 	ushort	smc_rbase;	/* Rx Buffer descriptor base address */
80 	ushort	smc_tbase;	/* Tx Buffer descriptor base address */
81 	u_char	smc_rfcr;	/* Rx function code */
82 	u_char	smc_tfcr;	/* Tx function code */
83 	ushort	smc_mrblr;	/* Max receive buffer length */
84 	uint	smc_rstate;	/* Internal */
85 	uint	smc_idp;	/* Internal */
86 	ushort	smc_rbptr;	/* Internal */
87 	ushort	smc_ibc;	/* Internal */
88 	uint	smc_rxtmp;	/* Internal */
89 	uint	smc_tstate;	/* Internal */
90 	uint	smc_tdp;	/* Internal */
91 	ushort	smc_tbptr;	/* Internal */
92 	ushort	smc_tbc;	/* Internal */
93 	uint	smc_txtmp;	/* Internal */
94 	ushort	smc_maxidl;	/* Maximum idle characters */
95 	ushort	smc_tmpidl;	/* Temporary idle counter */
96 	ushort	smc_brklen;	/* Last received break length */
97 	ushort	smc_brkec;	/* rcv'd break condition counter */
98 	ushort	smc_brkcr;	/* xmt break count register */
99 	ushort	smc_rmask;	/* Temporary bit mask */
100 	char	res1[8];	/* Reserved */
101 	ushort	smc_rpbase;	/* Relocation pointer */
102 } smc_uart_t;
103 
104 /* Function code bits.
105 */
106 #define SMC_EB	((u_char)0x10)	/* Set big endian byte order */
107 
108 /* SMC uart mode register.
109 */
110 #define	SMCMR_REN	((ushort)0x0001)
111 #define SMCMR_TEN	((ushort)0x0002)
112 #define SMCMR_DM	((ushort)0x000c)
113 #define SMCMR_SM_GCI	((ushort)0x0000)
114 #define SMCMR_SM_UART	((ushort)0x0020)
115 #define SMCMR_SM_TRANS	((ushort)0x0030)
116 #define SMCMR_SM_MASK	((ushort)0x0030)
117 #define SMCMR_PM_EVEN	((ushort)0x0100)	/* Even parity, else odd */
118 #define SMCMR_REVD	SMCMR_PM_EVEN
119 #define SMCMR_PEN	((ushort)0x0200)	/* Parity enable */
120 #define SMCMR_BS	SMCMR_PEN
121 #define SMCMR_SL	((ushort)0x0400)	/* Two stops, else one */
122 #define SMCR_CLEN_MASK	((ushort)0x7800)	/* Character length */
123 #define smcr_mk_clen(C)	(((C) << 11) & SMCR_CLEN_MASK)
124 
125 /* SMC2 as Centronics parallel printer.  It is half duplex, in that
126  * it can only receive or transmit.  The parameter ram values for
127  * each direction are either unique or properly overlap, so we can
128  * include them in one structure.
129  */
130 typedef struct smc_centronics {
131 	ushort	scent_rbase;
132 	ushort	scent_tbase;
133 	u_char	scent_cfcr;
134 	u_char	scent_smask;
135 	ushort	scent_mrblr;
136 	uint	scent_rstate;
137 	uint	scent_r_ptr;
138 	ushort	scent_rbptr;
139 	ushort	scent_r_cnt;
140 	uint	scent_rtemp;
141 	uint	scent_tstate;
142 	uint	scent_t_ptr;
143 	ushort	scent_tbptr;
144 	ushort	scent_t_cnt;
145 	uint	scent_ttemp;
146 	ushort	scent_max_sl;
147 	ushort	scent_sl_cnt;
148 	ushort	scent_character1;
149 	ushort	scent_character2;
150 	ushort	scent_character3;
151 	ushort	scent_character4;
152 	ushort	scent_character5;
153 	ushort	scent_character6;
154 	ushort	scent_character7;
155 	ushort	scent_character8;
156 	ushort	scent_rccm;
157 	ushort	scent_rccr;
158 } smc_cent_t;
159 
160 /* Centronics Status Mask Register.
161 */
162 #define SMC_CENT_F	((u_char)0x08)
163 #define SMC_CENT_PE	((u_char)0x04)
164 #define SMC_CENT_S	((u_char)0x02)
165 
166 /* SMC Event and Mask register.
167 */
168 #define	SMCM_BRKE	((unsigned char)0x40)	/* When in UART Mode */
169 #define	SMCM_BRK	((unsigned char)0x10)	/* When in UART Mode */
170 #define	SMCM_TXE	((unsigned char)0x10)	/* When in Transparent Mode */
171 #define	SMCM_BSY	((unsigned char)0x04)
172 #define	SMCM_TX		((unsigned char)0x02)
173 #define	SMCM_RX		((unsigned char)0x01)
174 
175 /* Baud rate generators.
176 */
177 #define CPM_BRG_RST		((uint)0x00020000)
178 #define CPM_BRG_EN		((uint)0x00010000)
179 #define CPM_BRG_EXTC_INT	((uint)0x00000000)
180 #define CPM_BRG_EXTC_CLK2	((uint)0x00004000)
181 #define CPM_BRG_EXTC_CLK6	((uint)0x00008000)
182 #define CPM_BRG_ATB		((uint)0x00002000)
183 #define CPM_BRG_CD_MASK		((uint)0x00001ffe)
184 #define CPM_BRG_DIV16		((uint)0x00000001)
185 
186 /* SI Clock Route Register
187 */
188 #define SICR_RCLK_SCC1_BRG1	((uint)0x00000000)
189 #define SICR_TCLK_SCC1_BRG1	((uint)0x00000000)
190 #define SICR_RCLK_SCC2_BRG2	((uint)0x00000800)
191 #define SICR_TCLK_SCC2_BRG2	((uint)0x00000100)
192 #define SICR_RCLK_SCC3_BRG3	((uint)0x00100000)
193 #define SICR_TCLK_SCC3_BRG3	((uint)0x00020000)
194 #define SICR_RCLK_SCC4_BRG4	((uint)0x18000000)
195 #define SICR_TCLK_SCC4_BRG4	((uint)0x03000000)
196 
197 /* SCCs.
198 */
199 #define SCC_GSMRH_IRP		((uint)0x00040000)
200 #define SCC_GSMRH_GDE		((uint)0x00010000)
201 #define SCC_GSMRH_TCRC_CCITT	((uint)0x00008000)
202 #define SCC_GSMRH_TCRC_BISYNC	((uint)0x00004000)
203 #define SCC_GSMRH_TCRC_HDLC	((uint)0x00000000)
204 #define SCC_GSMRH_REVD		((uint)0x00002000)
205 #define SCC_GSMRH_TRX		((uint)0x00001000)
206 #define SCC_GSMRH_TTX		((uint)0x00000800)
207 #define SCC_GSMRH_CDP		((uint)0x00000400)
208 #define SCC_GSMRH_CTSP		((uint)0x00000200)
209 #define SCC_GSMRH_CDS		((uint)0x00000100)
210 #define SCC_GSMRH_CTSS		((uint)0x00000080)
211 #define SCC_GSMRH_TFL		((uint)0x00000040)
212 #define SCC_GSMRH_RFW		((uint)0x00000020)
213 #define SCC_GSMRH_TXSY		((uint)0x00000010)
214 #define SCC_GSMRH_SYNL16	((uint)0x0000000c)
215 #define SCC_GSMRH_SYNL8		((uint)0x00000008)
216 #define SCC_GSMRH_SYNL4		((uint)0x00000004)
217 #define SCC_GSMRH_RTSM		((uint)0x00000002)
218 #define SCC_GSMRH_RSYN		((uint)0x00000001)
219 
220 #define SCC_GSMRL_SIR		((uint)0x80000000)	/* SCC2 only */
221 #define SCC_GSMRL_EDGE_NONE	((uint)0x60000000)
222 #define SCC_GSMRL_EDGE_NEG	((uint)0x40000000)
223 #define SCC_GSMRL_EDGE_POS	((uint)0x20000000)
224 #define SCC_GSMRL_EDGE_BOTH	((uint)0x00000000)
225 #define SCC_GSMRL_TCI		((uint)0x10000000)
226 #define SCC_GSMRL_TSNC_3	((uint)0x0c000000)
227 #define SCC_GSMRL_TSNC_4	((uint)0x08000000)
228 #define SCC_GSMRL_TSNC_14	((uint)0x04000000)
229 #define SCC_GSMRL_TSNC_INF	((uint)0x00000000)
230 #define SCC_GSMRL_RINV		((uint)0x02000000)
231 #define SCC_GSMRL_TINV		((uint)0x01000000)
232 #define SCC_GSMRL_TPL_128	((uint)0x00c00000)
233 #define SCC_GSMRL_TPL_64	((uint)0x00a00000)
234 #define SCC_GSMRL_TPL_48	((uint)0x00800000)
235 #define SCC_GSMRL_TPL_32	((uint)0x00600000)
236 #define SCC_GSMRL_TPL_16	((uint)0x00400000)
237 #define SCC_GSMRL_TPL_8		((uint)0x00200000)
238 #define SCC_GSMRL_TPL_NONE	((uint)0x00000000)
239 #define SCC_GSMRL_TPP_ALL1	((uint)0x00180000)
240 #define SCC_GSMRL_TPP_01	((uint)0x00100000)
241 #define SCC_GSMRL_TPP_10	((uint)0x00080000)
242 #define SCC_GSMRL_TPP_ZEROS	((uint)0x00000000)
243 #define SCC_GSMRL_TEND		((uint)0x00040000)
244 #define SCC_GSMRL_TDCR_32	((uint)0x00030000)
245 #define SCC_GSMRL_TDCR_16	((uint)0x00020000)
246 #define SCC_GSMRL_TDCR_8	((uint)0x00010000)
247 #define SCC_GSMRL_TDCR_1	((uint)0x00000000)
248 #define SCC_GSMRL_RDCR_32	((uint)0x0000c000)
249 #define SCC_GSMRL_RDCR_16	((uint)0x00008000)
250 #define SCC_GSMRL_RDCR_8	((uint)0x00004000)
251 #define SCC_GSMRL_RDCR_1	((uint)0x00000000)
252 #define SCC_GSMRL_RENC_DFMAN	((uint)0x00003000)
253 #define SCC_GSMRL_RENC_MANCH	((uint)0x00002000)
254 #define SCC_GSMRL_RENC_FM0	((uint)0x00001000)
255 #define SCC_GSMRL_RENC_NRZI	((uint)0x00000800)
256 #define SCC_GSMRL_RENC_NRZ	((uint)0x00000000)
257 #define SCC_GSMRL_TENC_DFMAN	((uint)0x00000600)
258 #define SCC_GSMRL_TENC_MANCH	((uint)0x00000400)
259 #define SCC_GSMRL_TENC_FM0	((uint)0x00000200)
260 #define SCC_GSMRL_TENC_NRZI	((uint)0x00000100)
261 #define SCC_GSMRL_TENC_NRZ	((uint)0x00000000)
262 #define SCC_GSMRL_DIAG_LE	((uint)0x000000c0)	/* Loop and echo */
263 #define SCC_GSMRL_DIAG_ECHO	((uint)0x00000080)
264 #define SCC_GSMRL_DIAG_LOOP	((uint)0x00000040)
265 #define SCC_GSMRL_DIAG_NORM	((uint)0x00000000)
266 #define SCC_GSMRL_ENR		((uint)0x00000020)
267 #define SCC_GSMRL_ENT		((uint)0x00000010)
268 #define SCC_GSMRL_MODE_ENET	((uint)0x0000000c)
269 #define SCC_GSMRL_MODE_QMC	((uint)0x0000000a)
270 #define SCC_GSMRL_MODE_DDCMP	((uint)0x00000009)
271 #define SCC_GSMRL_MODE_BISYNC	((uint)0x00000008)
272 #define SCC_GSMRL_MODE_V14	((uint)0x00000007)
273 #define SCC_GSMRL_MODE_AHDLC	((uint)0x00000006)
274 #define SCC_GSMRL_MODE_PROFIBUS	((uint)0x00000005)
275 #define SCC_GSMRL_MODE_UART	((uint)0x00000004)
276 #define SCC_GSMRL_MODE_SS7	((uint)0x00000003)
277 #define SCC_GSMRL_MODE_ATALK	((uint)0x00000002)
278 #define SCC_GSMRL_MODE_HDLC	((uint)0x00000000)
279 
280 #define SCC_TODR_TOD		((ushort)0x8000)
281 
282 /* SCC Event and Mask register.
283 */
284 #define	SCCM_TXE	((unsigned char)0x10)
285 #define	SCCM_BSY	((unsigned char)0x04)
286 #define	SCCM_TX		((unsigned char)0x02)
287 #define	SCCM_RX		((unsigned char)0x01)
288 
289 typedef struct scc_param {
290 	ushort	scc_rbase;	/* Rx Buffer descriptor base address */
291 	ushort	scc_tbase;	/* Tx Buffer descriptor base address */
292 	u_char	scc_rfcr;	/* Rx function code */
293 	u_char	scc_tfcr;	/* Tx function code */
294 	ushort	scc_mrblr;	/* Max receive buffer length */
295 	uint	scc_rstate;	/* Internal */
296 	uint	scc_idp;	/* Internal */
297 	ushort	scc_rbptr;	/* Internal */
298 	ushort	scc_ibc;	/* Internal */
299 	uint	scc_rxtmp;	/* Internal */
300 	uint	scc_tstate;	/* Internal */
301 	uint	scc_tdp;	/* Internal */
302 	ushort	scc_tbptr;	/* Internal */
303 	ushort	scc_tbc;	/* Internal */
304 	uint	scc_txtmp;	/* Internal */
305 	uint	scc_rcrc;	/* Internal */
306 	uint	scc_tcrc;	/* Internal */
307 } sccp_t;
308 
309 /* Function code bits.
310 */
311 #define SCC_EB	((u_char)0x10)	/* Set big endian byte order */
312 
313 /* CPM Ethernet through SCCx.
314  */
315 typedef struct scc_enet {
316 	sccp_t	sen_genscc;
317 	uint	sen_cpres;	/* Preset CRC */
318 	uint	sen_cmask;	/* Constant mask for CRC */
319 	uint	sen_crcec;	/* CRC Error counter */
320 	uint	sen_alec;	/* alignment error counter */
321 	uint	sen_disfc;	/* discard frame counter */
322 	ushort	sen_pads;	/* Tx short frame pad character */
323 	ushort	sen_retlim;	/* Retry limit threshold */
324 	ushort	sen_retcnt;	/* Retry limit counter */
325 	ushort	sen_maxflr;	/* maximum frame length register */
326 	ushort	sen_minflr;	/* minimum frame length register */
327 	ushort	sen_maxd1;	/* maximum DMA1 length */
328 	ushort	sen_maxd2;	/* maximum DMA2 length */
329 	ushort	sen_maxd;	/* Rx max DMA */
330 	ushort	sen_dmacnt;	/* Rx DMA counter */
331 	ushort	sen_maxb;	/* Max BD byte count */
332 	ushort	sen_gaddr1;	/* Group address filter */
333 	ushort	sen_gaddr2;
334 	ushort	sen_gaddr3;
335 	ushort	sen_gaddr4;
336 	uint	sen_tbuf0data0;	/* Save area 0 - current frame */
337 	uint	sen_tbuf0data1;	/* Save area 1 - current frame */
338 	uint	sen_tbuf0rba;	/* Internal */
339 	uint	sen_tbuf0crc;	/* Internal */
340 	ushort	sen_tbuf0bcnt;	/* Internal */
341 	ushort	sen_paddrh;	/* physical address (MSB) */
342 	ushort	sen_paddrm;
343 	ushort	sen_paddrl;	/* physical address (LSB) */
344 	ushort	sen_pper;	/* persistence */
345 	ushort	sen_rfbdptr;	/* Rx first BD pointer */
346 	ushort	sen_tfbdptr;	/* Tx first BD pointer */
347 	ushort	sen_tlbdptr;	/* Tx last BD pointer */
348 	uint	sen_tbuf1data0;	/* Save area 0 - current frame */
349 	uint	sen_tbuf1data1;	/* Save area 1 - current frame */
350 	uint	sen_tbuf1rba;	/* Internal */
351 	uint	sen_tbuf1crc;	/* Internal */
352 	ushort	sen_tbuf1bcnt;	/* Internal */
353 	ushort	sen_txlen;	/* Tx Frame length counter */
354 	ushort	sen_iaddr1;	/* Individual address filter */
355 	ushort	sen_iaddr2;
356 	ushort	sen_iaddr3;
357 	ushort	sen_iaddr4;
358 	ushort	sen_boffcnt;	/* Backoff counter */
359 
360 	/* NOTE: Some versions of the manual have the following items
361 	 * incorrectly documented.  Below is the proper order.
362 	 */
363 	ushort	sen_taddrh;	/* temp address (MSB) */
364 	ushort	sen_taddrm;
365 	ushort	sen_taddrl;	/* temp address (LSB) */
366 } scc_enet_t;
367 
368 /* SCC Event register as used by Ethernet.
369 */
370 #define SCCE_ENET_GRA	((ushort)0x0080)	/* Graceful stop complete */
371 #define SCCE_ENET_TXE	((ushort)0x0010)	/* Transmit Error */
372 #define SCCE_ENET_RXF	((ushort)0x0008)	/* Full frame received */
373 #define SCCE_ENET_BSY	((ushort)0x0004)	/* All incoming buffers full */
374 #define SCCE_ENET_TXB	((ushort)0x0002)	/* A buffer was transmitted */
375 #define SCCE_ENET_RXB	((ushort)0x0001)	/* A buffer was received */
376 
377 /* SCC Mode Register (PMSR) as used by Ethernet.
378 */
379 #define SCC_PSMR_HBC	((ushort)0x8000)	/* Enable heartbeat */
380 #define SCC_PSMR_FC	((ushort)0x4000)	/* Force collision */
381 #define SCC_PSMR_RSH	((ushort)0x2000)	/* Receive short frames */
382 #define SCC_PSMR_IAM	((ushort)0x1000)	/* Check individual hash */
383 #define SCC_PSMR_ENCRC	((ushort)0x0800)	/* Ethernet CRC mode */
384 #define SCC_PSMR_PRO	((ushort)0x0200)	/* Promiscuous mode */
385 #define SCC_PSMR_BRO	((ushort)0x0100)	/* Catch broadcast pkts */
386 #define SCC_PSMR_SBT	((ushort)0x0080)	/* Special backoff timer */
387 #define SCC_PSMR_LPB	((ushort)0x0040)	/* Set Loopback mode */
388 #define SCC_PSMR_SIP	((ushort)0x0020)	/* Sample Input Pins */
389 #define SCC_PSMR_LCW	((ushort)0x0010)	/* Late collision window */
390 #define SCC_PSMR_NIB22	((ushort)0x000a)	/* Start frame search */
391 #define SCC_PSMR_FDE	((ushort)0x0001)	/* Full duplex enable */
392 
393 /* SCC as UART
394 */
395 typedef struct scc_uart {
396 	sccp_t	scc_genscc;
397 	char	res1[8];	/* Reserved */
398 	ushort	scc_maxidl;	/* Maximum idle chars */
399 	ushort	scc_idlc;	/* temp idle counter */
400 	ushort	scc_brkcr;	/* Break count register */
401 	ushort	scc_parec;	/* receive parity error counter */
402 	ushort	scc_frmec;	/* receive framing error counter */
403 	ushort	scc_nosec;	/* receive noise counter */
404 	ushort	scc_brkec;	/* receive break condition counter */
405 	ushort	scc_brkln;	/* last received break length */
406 	ushort	scc_uaddr1;	/* UART address character 1 */
407 	ushort	scc_uaddr2;	/* UART address character 2 */
408 	ushort	scc_rtemp;	/* Temp storage */
409 	ushort	scc_toseq;	/* Transmit out of sequence char */
410 	ushort	scc_char1;	/* control character 1 */
411 	ushort	scc_char2;	/* control character 2 */
412 	ushort	scc_char3;	/* control character 3 */
413 	ushort	scc_char4;	/* control character 4 */
414 	ushort	scc_char5;	/* control character 5 */
415 	ushort	scc_char6;	/* control character 6 */
416 	ushort	scc_char7;	/* control character 7 */
417 	ushort	scc_char8;	/* control character 8 */
418 	ushort	scc_rccm;	/* receive control character mask */
419 	ushort	scc_rccr;	/* receive control character register */
420 	ushort	scc_rlbc;	/* receive last break character */
421 } scc_uart_t;
422 
423 /* SCC Event and Mask registers when it is used as a UART.
424 */
425 #define UART_SCCM_GLR		((ushort)0x1000)
426 #define UART_SCCM_GLT		((ushort)0x0800)
427 #define UART_SCCM_AB		((ushort)0x0200)
428 #define UART_SCCM_IDL		((ushort)0x0100)
429 #define UART_SCCM_GRA		((ushort)0x0080)
430 #define UART_SCCM_BRKE		((ushort)0x0040)
431 #define UART_SCCM_BRKS		((ushort)0x0020)
432 #define UART_SCCM_CCR		((ushort)0x0008)
433 #define UART_SCCM_BSY		((ushort)0x0004)
434 #define UART_SCCM_TX		((ushort)0x0002)
435 #define UART_SCCM_RX		((ushort)0x0001)
436 
437 /* The SCC PMSR when used as a UART.
438 */
439 #define SCU_PSMR_FLC		((ushort)0x8000)
440 #define SCU_PSMR_SL		((ushort)0x4000)
441 #define SCU_PSMR_CL		((ushort)0x3000)
442 #define SCU_PSMR_UM		((ushort)0x0c00)
443 #define SCU_PSMR_FRZ		((ushort)0x0200)
444 #define SCU_PSMR_RZS		((ushort)0x0100)
445 #define SCU_PSMR_SYN		((ushort)0x0080)
446 #define SCU_PSMR_DRT		((ushort)0x0040)
447 #define SCU_PSMR_PEN		((ushort)0x0010)
448 #define SCU_PSMR_RPM		((ushort)0x000c)
449 #define SCU_PSMR_REVP		((ushort)0x0008)
450 #define SCU_PSMR_TPM		((ushort)0x0003)
451 #define SCU_PSMR_TEVP		((ushort)0x0002)
452 
453 /* CPM Transparent mode SCC.
454  */
455 typedef struct scc_trans {
456 	sccp_t	st_genscc;
457 	uint	st_cpres;	/* Preset CRC */
458 	uint	st_cmask;	/* Constant mask for CRC */
459 } scc_trans_t;
460 
461 /* IIC parameter RAM.
462 */
463 typedef struct iic {
464 	ushort	iic_rbase;	/* Rx Buffer descriptor base address */
465 	ushort	iic_tbase;	/* Tx Buffer descriptor base address */
466 	u_char	iic_rfcr;	/* Rx function code */
467 	u_char	iic_tfcr;	/* Tx function code */
468 	ushort	iic_mrblr;	/* Max receive buffer length */
469 	uint	iic_rstate;	/* Internal */
470 	uint	iic_rdp;	/* Internal */
471 	ushort	iic_rbptr;	/* Internal */
472 	ushort	iic_rbc;	/* Internal */
473 	uint	iic_rxtmp;	/* Internal */
474 	uint	iic_tstate;	/* Internal */
475 	uint	iic_tdp;	/* Internal */
476 	ushort	iic_tbptr;	/* Internal */
477 	ushort	iic_tbc;	/* Internal */
478 	uint	iic_txtmp;	/* Internal */
479 	char	res1[4];	/* Reserved */
480 	ushort	iic_rpbase;	/* Relocation pointer */
481 	char	res2[2];	/* Reserved */
482 } iic_t;
483 
484 /*
485  * RISC Controller Configuration Register definitons
486  */
487 #define RCCR_TIME	0x8000			/* RISC Timer Enable */
488 #define RCCR_TIMEP(t)	(((t) & 0x3F)<<8)	/* RISC Timer Period */
489 #define RCCR_TIME_MASK	0x00FF			/* not RISC Timer related bits */
490 
491 /* RISC Timer Parameter RAM offset */
492 #define PROFF_RTMR	((uint)0x01B0)
493 
494 typedef struct risc_timer_pram {
495 	unsigned short	tm_base;	/* RISC Timer Table Base Address */
496 	unsigned short	tm_ptr;		/* RISC Timer Table Pointer (internal) */
497 	unsigned short	r_tmr;		/* RISC Timer Mode Register */
498 	unsigned short	r_tmv;		/* RISC Timer Valid Register */
499 	unsigned long	tm_cmd;		/* RISC Timer Command Register */
500 	unsigned long	tm_cnt;		/* RISC Timer Internal Count */
501 } rt_pram_t;
502 
503 /* Bits in RISC Timer Command Register */
504 #define TM_CMD_VALID	0x80000000	/* Valid - Enables the timer */
505 #define TM_CMD_RESTART	0x40000000	/* Restart - for automatic restart */
506 #define TM_CMD_PWM	0x20000000	/* Run in Pulse Width Modulation Mode */
507 #define TM_CMD_NUM(n)	(((n)&0xF)<<16)	/* Timer Number */
508 #define TM_CMD_PERIOD(p) ((p)&0xFFFF)	/* Timer Period */
509 
510 /* CPM interrupts.  There are nearly 32 interrupts generated by CPM
511  * channels or devices.  All of these are presented to the PPC core
512  * as a single interrupt.  The CPM interrupt handler dispatches its
513  * own handlers, in a similar fashion to the PPC core handler.  We
514  * use the table as defined in the manuals (i.e. no special high
515  * priority and SCC1 == SCCa, etc...).
516  */
517 #define CPMVEC_NR		32
518 #define	CPMVEC_PIO_PC15		((ushort)0x1f)
519 #define	CPMVEC_SCC1		((ushort)0x1e)
520 #define	CPMVEC_SCC2		((ushort)0x1d)
521 #define	CPMVEC_SCC3		((ushort)0x1c)
522 #define	CPMVEC_SCC4		((ushort)0x1b)
523 #define	CPMVEC_PIO_PC14		((ushort)0x1a)
524 #define	CPMVEC_TIMER1		((ushort)0x19)
525 #define	CPMVEC_PIO_PC13		((ushort)0x18)
526 #define	CPMVEC_PIO_PC12		((ushort)0x17)
527 #define	CPMVEC_SDMA_CB_ERR	((ushort)0x16)
528 #define CPMVEC_IDMA1		((ushort)0x15)
529 #define CPMVEC_IDMA2		((ushort)0x14)
530 #define CPMVEC_TIMER2		((ushort)0x12)
531 #define CPMVEC_RISCTIMER	((ushort)0x11)
532 #define CPMVEC_I2C		((ushort)0x10)
533 #define	CPMVEC_PIO_PC11		((ushort)0x0f)
534 #define	CPMVEC_PIO_PC10		((ushort)0x0e)
535 #define CPMVEC_TIMER3		((ushort)0x0c)
536 #define	CPMVEC_PIO_PC9		((ushort)0x0b)
537 #define	CPMVEC_PIO_PC8		((ushort)0x0a)
538 #define	CPMVEC_PIO_PC7		((ushort)0x09)
539 #define CPMVEC_TIMER4		((ushort)0x07)
540 #define	CPMVEC_PIO_PC6		((ushort)0x06)
541 #define	CPMVEC_SPI		((ushort)0x05)
542 #define	CPMVEC_SMC1		((ushort)0x04)
543 #define	CPMVEC_SMC2		((ushort)0x03)
544 #define	CPMVEC_PIO_PC5		((ushort)0x02)
545 #define	CPMVEC_PIO_PC4		((ushort)0x01)
546 #define	CPMVEC_ERROR		((ushort)0x00)
547 
548 /* CPM interrupt configuration vector.
549 */
550 #define	CICR_SCD_SCC4		((uint)0x00c00000)	/* SCC4 @ SCCd */
551 #define	CICR_SCC_SCC3		((uint)0x00200000)	/* SCC3 @ SCCc */
552 #define	CICR_SCB_SCC2		((uint)0x00040000)	/* SCC2 @ SCCb */
553 #define	CICR_SCA_SCC1		((uint)0x00000000)	/* SCC1 @ SCCa */
554 #define CICR_IRL_MASK		((uint)0x0000e000)	/* Core interrupt */
555 #define CICR_HP_MASK		((uint)0x00001f00)	/* Hi-pri int. */
556 #define CICR_IEN		((uint)0x00000080)	/* Int. enable */
557 #define CICR_SPS		((uint)0x00000001)	/* SCC Spread */
558 
559 #define CPM_PIN_INPUT     0
560 #define CPM_PIN_OUTPUT    1
561 #define CPM_PIN_PRIMARY   0
562 #define CPM_PIN_SECONDARY 2
563 #define CPM_PIN_GPIO      4
564 #define CPM_PIN_OPENDRAIN 8
565 #define CPM_PIN_FALLEDGE  16
566 #define CPM_PIN_ANYEDGE   0
567 
568 enum cpm_port {
569 	CPM_PORTA,
570 	CPM_PORTB,
571 	CPM_PORTC,
572 	CPM_PORTD,
573 	CPM_PORTE,
574 };
575 
576 void cpm1_set_pin(enum cpm_port port, int pin, int flags);
577 
578 enum cpm_clk_dir {
579 	CPM_CLK_RX,
580 	CPM_CLK_TX,
581 	CPM_CLK_RTX
582 };
583 
584 enum cpm_clk_target {
585 	CPM_CLK_SCC1,
586 	CPM_CLK_SCC2,
587 	CPM_CLK_SCC3,
588 	CPM_CLK_SCC4,
589 	CPM_CLK_SMC1,
590 	CPM_CLK_SMC2,
591 };
592 
593 enum cpm_clk {
594 	CPM_BRG1,	/* Baud Rate Generator  1 */
595 	CPM_BRG2,	/* Baud Rate Generator  2 */
596 	CPM_BRG3,	/* Baud Rate Generator  3 */
597 	CPM_BRG4,	/* Baud Rate Generator  4 */
598 	CPM_CLK1,	/* Clock  1 */
599 	CPM_CLK2,	/* Clock  2 */
600 	CPM_CLK3,	/* Clock  3 */
601 	CPM_CLK4,	/* Clock  4 */
602 	CPM_CLK5,	/* Clock  5 */
603 	CPM_CLK6,	/* Clock  6 */
604 	CPM_CLK7,	/* Clock  7 */
605 	CPM_CLK8,	/* Clock  8 */
606 };
607 
608 int cpm1_clk_setup(enum cpm_clk_target target, int clock, int mode);
609 int cpm1_gpiochip_add16(struct device *dev);
610 int cpm1_gpiochip_add32(struct device *dev);
611 
612 #endif /* __CPM1__ */
613