aboutsummaryrefslogtreecommitdiff
path: root/board/gen860t/ioport.c
blob: d8c3006a6bda66caa16cdb1b0188bc918e5dd9f5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
/*
 * (C) Copyright 2000
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <common.h>
#include <mpc8xx.h>
#include <asm/8xx_immap.h>
#include "ioport.h"

#if 0
#define IOPORT_DEBUG
#endif

#ifdef  IOPORT_DEBUG
#define PRINTF(fmt,args...) printf (fmt ,##args)
#else
#define PRINTF(fmt,args...)
#endif

/*
 * The ioport configuration table.
 */
const mpc8xx_iop_conf_t iop_conf_tab[NUM_PORTS][PORT_BITS] = {
    /*
	 * Port A configuration
	 * Pin	Signal					Type	Active	Initial state
	 * PA7	fpgaProgramLowOut		Out		Low			High
	 * PA1	fpgaCoreVoltageFailLow	In		Low			N/A
	 */
    {	/*	    conf ppar psor pdir podr pdat pint	   function		*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /* No pin			*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /* No pin			*/
	/* PA15 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PA14 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PA13 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PA12 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PA11 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PA10 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PA9  */ { 1,   0,   0,   1,   0,   0,   0 }, /* grn bicolor LED 1*/
	/* PA8  */ { 1,   0,   0,   1,   0,   0,   0 }, /* red bicolor LED 1*/
	/* PA7  */ { 1,   0,   0,   1,   0,   1,   0 }, /* fpgaProgramLow	*/
	/* PA6  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PA5  */ { 1,   0,   0,   1,   0,   0,   0 }, /* grn bicolor LED 0*/
	/* PA4  */ { 1,   0,   0,   1,   0,   0,   0 }, /* red bicolor LED 0*/
	/* PA3  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PA2  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
#if !defined(CONFIG_SC)
	/* PA1  */ { 1,   0,   0,   0,   0,   0,   0 }, /*	fpgaCoreVoltageFail*/
#else
	/* PA1  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
#endif
	/* PA0  */ { 0,   0,   0,   0,   0,   0,   0 }  /*	*/
    },

	/*
	 * Port B configuration
	 * Pin		Signal			Type		Active		Initial state
	 * PB14		docBusyLowIn	In			Low			X
	 * PB15		gpio1Sig		Out			High		Low
	 * PB16		fpgaDoneBi		In			High		X
	 * PB17		swBitOkLowOut	Out			Low			High
	 * PB19		speakerVolSig	Out/Hi-Z	High/Low	High (Hi-Z)
	 * PB22		fpgaInitLowBi	In			Low			X
	 * PB23		batteryOkSig	In			High		X
	 * PB31		pulseCatcherClr	Out			High		0
	 */
	{	/*	    conf ppar psor pdir podr pdat pint	  function			*/
#if !defined(CONFIG_SC)
	/* PB31 */ { 0,	  0,   0,   0,   0,   0,   0 }, /*	*/
#else
	/* PB31 */ { 1,   0,   0,   1,   0,   0,   0 }, /* pulseCatcherClr	*/
#endif
	/* PB30 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PB29 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PB28 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PB27 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PB26 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PB25 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PB24 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
#if !defined(CONFIG_SC)
	/* PB23 */ { 1,   0,   0,   0,   0,   0,   0 }, /* batteryOk		*/
#else
	/* PB23 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
#endif
	/* PB22 */ { 1,   0,   0,   0,   0,   0,   0 }, /* fpgaInitLowBi	*/
	/* PB21 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PB20 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
#if !defined(CONFIG_SC)
	/* PB19 */ { 1,   0,   0,   1,   1,   1,   0 }, /* speakerVol		*/
#else
	/* PB19 */ { 0,   0,   0,   1,   1,   1,   0 }, /*	*/
#endif
	/* PB18 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PB17 */ { 1,   0,   0,   1,   0,   1,   0 }, /* swBitOkLow		*/
	/* PB16 */ { 1,   0,   0,   0,   0,   0,   0 }, /* fpgaDone			*/
	/* PB15 */ { 1,   0,   0,   1,   0,   0,   0 }, /* gpio1			*/
#if !defined(CONFIG_SC)
	/* PB14 */ { 1,   0,   0,   0,   0,   0,   0 }  /* docBusyLow		*/
#else
	/* PB14 */ { 0,   0,   0,   0,   0,   0,   0 }  /*	*/
#endif
	},

	/*
	 * Port C configuration
	 * Pin		Signal				Type	Active		Initial state
	 * PC4		i2cBus1EnSig		Out		High		High
	 * PC5		i2cBus2EnSig		Out		High		High
	 * PC6		gpio0Sig			Out		High		Low
	 * PC8		i2cBus3EnSig		Out		High		High
	 * PC10		i2cBus4EnSig		Out		High		High
	 * PC11		fpgaResetLowOut		Out		Low			High
	 * PC12		systemBitOkIn		In		High		X
	 * PC15		selfDreqLow			In		Low			X
	 */
	{	/*	    conf ppar psor pdir podr pdat pint	  function			*/
	/* N/A	*/ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* N/A	*/ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PC15 */ { 1,   0,   0,   0,   0,   0,   0 }, /* selfDreqLowIn	*/
	/* PC14 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PC13 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
#if !defined(CONFIG_SC)
	/* PC12 */ { 1,   0,   0,   0,   0,   0,   0 }, /* systemBitOkIn	*/
#else
	/* PC12 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
#endif
	/* PC11 */ { 1,   0,   0,   1,   0,   1,   0 }, /* fpgaResetLowOut	*/
#if !defined(CONFIG_SC)
	/* PC10 */ { 1,   0,   0,   1,   0,   1,   0 }, /* i2cBus4EnSig		*/
#else
	/* PC10 */ { 0,   0,   0,   1,   0,   1,   0 }, /*	*/
#endif
	/* PC9  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
#if !defined(CONFIG_SC)
	/* PC8  */ { 1,   0,   0,   1,   0,   1,   0 }, /* i2cBus3EnSig		*/
#else
	/* PC8  */ { 0,   0,   0,   1,   0,   1,   0 }, /*	*/
#endif
	/* PC7  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PC6  */ { 1,   0,   0,   1,   0,   1,   0 }, /* gpio0			*/
#if !defined(CONFIG_SC)
	/* PC5  */ { 1,   0,   0,   1,   0,   1,   0 }, /* i2cBus2EnSig		*/
	/* PC4  */ { 1,   0,   0,   1,   0,   1,   0 }, /* i2cBus1EnSig		*/
#else
	/* PC5  */ { 0,   0,   0,   1,   0,   1,   0 }, /*	*/
	/* PC4  */ { 0,   0,   0,   1,   0,   1,   0 }, /*	*/
#endif
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }  /*	*/
	},

	/*
	 * Port D configuration
	 */
	{	/*	    conf ppar psor pdir podr pdat pint	   function			*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD15 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD14 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD13 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD12 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD11 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD10 */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD9  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD8  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD7  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD6  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD5  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD4  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* PD3  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }, /*	*/
	/* N/A  */ { 0,   0,   0,   0,   0,   0,   0 }  /*	*/
	}
};

/*
 * Configure the MPC8XX I/O ports per the ioport configuration table
 * (taken from ./cpu/mpc8260/cpu_init.c)
 */
void config_mpc8xx_ioports (volatile immap_t * immr)
{
	int portnum;

	for (portnum = 0; portnum < NUM_PORTS; portnum++) {
		uint pmsk = 0, ppar = 0, psor = 0, pdir = 0;
		uint podr = 0, pdat = 0, pint = 0;
		uint msk = 1;
		mpc8xx_iop_conf_t *iopc =
			(mpc8xx_iop_conf_t *) & iop_conf_tab[portnum][0];
		mpc8xx_iop_conf_t *eiopc = iopc + PORT_BITS;

		/*
		 * For all ports except port B, ignore the two don't care entries
		 * in the configuration tables.
		 */
		if (portnum != 1) {
			iopc = (mpc8xx_iop_conf_t *) &
				iop_conf_tab[portnum][2];
		}

		/*
		 * NOTE: index 0 refers to pin 17, index 17 refers to pin 0
		 */
		while (iopc < eiopc) {
			if (iopc->conf) {
				pmsk |= msk;
				if (iopc->ppar)
					ppar |= msk;
				if (iopc->psor)
					psor |= msk;
				if (iopc->pdir)
					pdir |= msk;
				if (iopc->podr)
					podr |= msk;
				if (iopc->pdat)
					pdat |= msk;
				if (iopc->pint)
					pint |= msk;
			}
			msk <<= 1;
			iopc++;
		}

		PRINTF ("%s:%d:\n  portnum=%d ", __FUNCTION__, __LINE__,
			portnum);
#ifdef IOPORT_DEBUG
		switch (portnum) {
		case 0:
			printf ("(A)\n");
			break;
		case 1:
			printf ("(B)\n");
			break;
		case 2:
			printf ("(C)\n");
			break;
		case 3:
			printf ("(D)\n");
			break;
		default:
			printf ("(?)\n");
			break;
		}
#endif
		PRINTF ("  ppar=0x%.8x  pdir=0x%.8x  podr=0x%.8x\n"
			"  pdat=0x%.8x  psor=0x%.8x  pint=0x%.8x  pmsk=0x%.8x\n",
			ppar, pdir, podr, pdat, psor, pint, pmsk);

		/*
		 * Have to handle the ioports on a port-by-port basis since there
		 * are three different flavors.
		 */
		if (pmsk != 0) {
			uint tpmsk = ~pmsk;

			if (0 == portnum) {	/* port A */
				immr->im_ioport.iop_papar &= tpmsk;
				immr->im_ioport.iop_padat =
					(immr->im_ioport.
					 iop_padat & tpmsk) | pdat;
				immr->im_ioport.iop_padir =
					(immr->im_ioport.
					 iop_padir & tpmsk) | pdir;
				immr->im_ioport.iop_paodr =
					(immr->im_ioport.
					 iop_paodr & tpmsk) | podr;
				immr->im_ioport.iop_papar |= ppar;
			} else if (1 == portnum) {	/* port B */
				immr->im_cpm.cp_pbpar &= tpmsk;
				immr->im_cpm.cp_pbdat =
					(immr->im_cpm.
					 cp_pbdat & tpmsk) | pdat;
				immr->im_cpm.cp_pbdir =
					(immr->im_cpm.
					 cp_pbdir & tpmsk) | pdir;
				immr->im_cpm.cp_pbodr =
					(immr->im_cpm.
					 cp_pbodr & tpmsk) | podr;
				immr->im_cpm.cp_pbpar |= ppar;
			} else if (2 == portnum) {	/* port C */
				immr->im_ioport.iop_pcpar &= tpmsk;
				immr->im_ioport.iop_pcdat =
					(immr->im_ioport.
					 iop_pcdat & tpmsk) | pdat;
				immr->im_ioport.iop_pcdir =
					(immr->im_ioport.
					 iop_pcdir & tpmsk) | pdir;
				immr->im_ioport.iop_pcint =
					(immr->im_ioport.
					 iop_pcint & tpmsk) | pint;
				immr->im_ioport.iop_pcso =
					(immr->im_ioport.
					 iop_pcso & tpmsk) | psor;
				immr->im_ioport.iop_pcpar |= ppar;
			} else if (3 == portnum) {	/* port D */
				immr->im_ioport.iop_pdpar &= tpmsk;
				immr->im_ioport.iop_pddat =
					(immr->im_ioport.
					 iop_pddat & tpmsk) | pdat;
				immr->im_ioport.iop_pddir =
					(immr->im_ioport.
					 iop_pddir & tpmsk) | pdir;
				immr->im_ioport.iop_pdpar |= ppar;
			}
		}
	}

	PRINTF ("%s:%d: Port A:\n  papar=0x%.4x  padir=0x%.4x"
		"  paodr=0x%.4x\n  padat=0x%.4x\n", __FUNCTION__, __LINE__,
		immr->im_ioport.iop_papar, immr->im_ioport.iop_padir,
		immr->im_ioport.iop_paodr, immr->im_ioport.iop_padat);
	PRINTF ("%s:%d: Port B:\n  pbpar=0x%.8x  pbdir=0x%.8x"
		"  pbodr=0x%.8x\n  pbdat=0x%.8x\n", __FUNCTION__, __LINE__,
		immr->im_cpm.cp_pbpar, immr->im_cpm.cp_pbdir,
		immr->im_cpm.cp_pbodr, immr->im_cpm.cp_pbdat);
	PRINTF ("%s:%d: Port C:\n  pcpar=0x%.4x  pcdir=0x%.4x"
		"  pcdat=0x%.4x\n  pcso=0x%.4x  pcint=0x%.4x\n  ",
		__FUNCTION__, __LINE__, immr->im_ioport.iop_pcpar,
		immr->im_ioport.iop_pcdir, immr->im_ioport.iop_pcdat,
		immr->im_ioport.iop_pcso, immr->im_ioport.iop_pcint);
	PRINTF ("%s:%d: Port D:\n  pdpar=0x%.4x  pddir=0x%.4x"
		"  pddat=0x%.4x\n", __FUNCTION__, __LINE__,
		immr->im_ioport.iop_pdpar, immr->im_ioport.iop_pddir,
		immr->im_ioport.iop_pddat);
}