summaryrefslogtreecommitdiff
path: root/board/kup/kup4x/kup4x.c
blob: 65a222b5ef1c4f5f9f49a8f383593fffed43e7f2 (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
/*
 * (C) Copyright 2000-2004
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 * Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.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 <post.h>
#include "../common/kup.h"
#ifdef CONFIG_KUP4K_LOGO
/* #include "s1d13706.h" */
#endif

#define KUP4X_USB


typedef struct {
	volatile unsigned char *VmemAddr;
	volatile unsigned char *RegAddr;
} FB_INFO_S1D13xxx;

/* ------------------------------------------------------------------------- */

int usb_init_kup4x (void);


#ifdef CONFIG_KUP4K_LOGO
void lcd_logo (bd_t * bd);
#endif

/* ------------------------------------------------------------------------- */

#define	_NOT_USED_	0xFFFFFFFF

const uint sdram_table[] = {
	/*
	 * Single Read. (Offset 0 in UPMA RAM)
	 */
	0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00,
	0x1FF77C47,		/* last */

	/*
	 * SDRAM Initialization (offset 5 in UPMA RAM)
	 *
	 * This is no UPM entry point. The following definition uses
	 * the remaining space to establish an initialization
	 * sequence, which is executed by a RUN command.
	 *
	 */
	0x1FF77C35, 0xEFEABC34, 0x1FB57C35,	/* last */

	/*
	 * Burst Read. (Offset 8 in UPMA RAM)
	 */
	0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00,
	0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47,	/* last */
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,

	/*
	 * Single Write. (Offset 18 in UPMA RAM)
	 */
	0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47,	/* last */
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,

	/*
	 * Burst Write. (Offset 20 in UPMA RAM)
	 */
	0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00,
	0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47,	/* last */
	_NOT_USED_,
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,

	/*
	 * Refresh  (Offset 30 in UPMA RAM)
	 */
	0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
	0xFFFFFC84, 0xFFFFFC07,	/* last */
	_NOT_USED_, _NOT_USED_,
	_NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,

	/*
	 * Exception. (Offset 3c in UPMA RAM)
	 */
	0x7FFFFC07,		/* last */
	_NOT_USED_, _NOT_USED_, _NOT_USED_,
};

/* ------------------------------------------------------------------------- */

/*
 * Check Board Identity:
 */

int checkboard (void)
{
	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
	volatile memctl8xx_t *memctl = &immap->im_memctl;
	volatile uchar *latch;
	uchar rev, mod;

	/*
	 * Init ChipSelect #4 (CAN + HW-Latch)
	 */
	memctl->memc_or4 = 0xFFFF8926;
	memctl->memc_br4 = 0x90000401;
	__asm__ ("eieio");
	latch = (volatile uchar *) 0x90000200;
	rev = (*latch & 0xF8) >> 3;
	mod = (*latch & 0x03);
	printf ("Board: KUP4X Rev %d.%d\n",rev,mod);
	return (0);
}

/* ------------------------------------------------------------------------- */

phys_size_t initdram (int board_type)
{
	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
	volatile memctl8xx_t *memctl = &immap->im_memctl;
	long int size_b0 = 0;
	long int size_b1 = 0;
	long int size_b2 = 0;
	long int size_b3 = 0;

	upmconfig (UPMA, (uint *) sdram_table,
		   sizeof (sdram_table) / sizeof (uint));
	/*
	 * Preliminary prescaler for refresh (depends on number of
	 * banks): This value is selected for four cycles every 62.4 us
	 * with two SDRAM banks or four cycles every 31.2 us with one
	 * bank. It will be adjusted after memory sizing.
	 */
	memctl->memc_mptpr = CONFIG_SYS_MPTPR;

	memctl->memc_mar = 0x00000088;

	/*
	 * Map controller banks 1 and 2 to the SDRAM banks 2 and 3 at
	 * preliminary addresses - these have to be modified after the
	 * SDRAM size has been determined.
	 */
/*	memctl->memc_or1 = CONFIG_SYS_OR1_PRELIM;	*/
/*	memctl->memc_br1 = CONFIG_SYS_BR1_PRELIM;	*/

/*	memctl->memc_or2 = CONFIG_SYS_OR2_PRELIM;	*/
/*	memctl->memc_br2 = CONFIG_SYS_BR2_PRELIM;	*/

	memctl->memc_mamr = CONFIG_SYS_MAMR & (~(MAMR_PTAE));	/* no refresh yet */

	udelay (200);

	/* perform SDRAM initializsation sequence */

	memctl->memc_mcr = 0x80002105;	/* SDRAM bank 0 */
	udelay (1);
	memctl->memc_mcr = 0x80002830;	/* SDRAM bank 0 - execute twice */
	udelay (1);
	memctl->memc_mcr = 0x80002106;	/* SDRAM bank 0 - RUN MRS Pattern from loc 6 */
	udelay (1);

	memctl->memc_mcr = 0x80004105;	/* SDRAM bank 1 */
	udelay (1);
	memctl->memc_mcr = 0x80004830;	/* SDRAM bank 1 - execute twice */
	udelay (1);
	memctl->memc_mcr = 0x80004106;	/* SDRAM bank 1 - RUN MRS Pattern from loc 6 */
	udelay (1);

	memctl->memc_mcr = 0x80006105;	/* SDRAM bank 2 */
	udelay (1);
	memctl->memc_mcr = 0x80006830;	/* SDRAM bank 2 - execute twice */
	udelay (1);
	memctl->memc_mcr = 0x80006106;	/* SDRAM bank 2 - RUN MRS Pattern from loc 6 */
	udelay (1);

	memctl->memc_mcr = 0x8000C105;	/* SDRAM bank 2 */
	udelay (1);
	memctl->memc_mcr = 0x8000C830;	/* SDRAM bank 2 - execute twice */
	udelay (1);
	memctl->memc_mcr = 0x8000C106;	/* SDRAM bank 2 - RUN MRS Pattern from loc 6 */
	udelay (1);

	memctl->memc_mamr |= MAMR_PTAE;	/* enable refresh */
	udelay (1000);
#if 0				/* 4 x 8MB */
	size_b0 = 0x00800000;
	size_b1 = 0x00800000;
	size_b2 = 0x00800000;
	size_b3 = 0x00800000;
	memctl->memc_mptpr = CONFIG_SYS_MPTPR;
	udelay (1000);
	memctl->memc_or1 = 0xFF800A00;
	memctl->memc_br1 = 0x00000081;
	memctl->memc_or2 = 0xFF000A00;
	memctl->memc_br2 = 0x00800081;
	memctl->memc_or3 = 0xFE000A00;
	memctl->memc_br3 = 0x01000081;
	memctl->memc_or6 = 0xFE000A00;
	memctl->memc_br6 = 0x01800081;
#else  /* 4 x 16 MB */
	size_b0 = 0x01000000;
	size_b1 = 0x01000000;
	size_b2 = 0x01000000;
	size_b3 = 0x01000000;
	memctl->memc_mptpr = CONFIG_SYS_MPTPR;
	udelay (1000);
	memctl->memc_or1 = 0xFF000A00;
	memctl->memc_br1 = 0x00000081;
	memctl->memc_or2 = 0xFE000A00;
	memctl->memc_br2 = 0x01000081;
	memctl->memc_or3 = 0xFD000A00;
	memctl->memc_br3 = 0x02000081;
	memctl->memc_or6 = 0xFC000A00;
	memctl->memc_br6 = 0x03000081;
#endif
	udelay (10000);

	return (size_b0 + size_b1 + size_b2 + size_b3);
}

/* ------------------------------------------------------------------------- */

/*
 * Check memory range for valid RAM. A simple memory test determines
 * the actually available RAM size between addresses `base' and
 * `base + maxsize'. Some (not all) hardware errors are detected:
 * - short between address lines
 * - short between data lines
 */
#if 0
static long int dram_size (long int mamr_value, long int *base,
			   long int maxsize)
{
	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
	volatile memctl8xx_t *memctl = &immap->im_memctl;
	volatile long int *addr;
	ulong cnt, val;
	ulong save[32];		/* to make test non-destructive */
	unsigned char i = 0;

	memctl->memc_mamr = mamr_value;

	for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
		addr = base + cnt;	/* pointer arith! */

		save[i++] = *addr;
		*addr = ~cnt;
	}

	/* write 0 to base address */
	addr = base;
	save[i] = *addr;
	*addr = 0;

	/* check at base address */
	if ((val = *addr) != 0) {
		*addr = save[i];
		return (0);
	}

	for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
		addr = base + cnt;	/* pointer arith! */

		val = *addr;
		*addr = save[--i];

		if (val != (~cnt)) {
			return (cnt * sizeof (long));
		}
	}
	return (maxsize);
}
#endif

int misc_init_r (void)
{
	volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
#ifdef CONFIG_IDE_LED
	/* Configure PA8 as output port */
	immap->im_ioport.iop_padir |= 0x80;
	immap->im_ioport.iop_paodr |= 0x80;
	immap->im_ioport.iop_papar &= ~0x80;
	immap->im_ioport.iop_padat |= 0x80;	/* turn it off */
#endif
#ifdef KUP4X_USB
	usb_init_kup4x ();
#endif
	load_sernum_ethaddr();
	setenv ("hw", "4x");
	poweron_key ();
	return (0);
}