blob: 9f52e339bab3a23472be66c1858f1ceee68cbec4 [file] [log] [blame]
wdenkf8cac652002-08-26 22:36:39 +00001/*
2 * (C) Copyright 2000
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 * Ulrich Lutz, Speech Design GmbH, ulutz@datalab.de.
5 *
6 * See file CREDITS for list of people who contributed to this
7 * project.
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation; either version 2 of
12 * the License, or (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
22 * MA 02111-1307 USA
23 */
24
25#include <common.h>
26#include <mpc8xx.h>
27#include <commproc.h>
28
29/* ------------------------------------------------------------------------- */
30
31static long int dram_size (long int, long int *, long int);
32
33/* ------------------------------------------------------------------------- */
34
35#define _NOT_USED_ 0xFFFFFFFF
36
wdenkc83bf6a2004-01-06 22:38:14 +000037const uint sharc_table[] = {
wdenkf8cac652002-08-26 22:36:39 +000038 /*
39 * Single Read. (Offset 0 in UPM RAM)
40 */
41 0x0FF3FC04, 0x0FF3EC00, 0x7FFFEC04, 0xFFFFEC04,
wdenkc83bf6a2004-01-06 22:38:14 +000042 0xFFFFEC05, /* last */
43 _NOT_USED_, _NOT_USED_, _NOT_USED_,
wdenkf8cac652002-08-26 22:36:39 +000044 /*
45 * Burst Read. (Offset 8 in UPM RAM)
46 */
47 /* last */
48 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
49 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
50 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
51 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
52 /*
53 * Single Write. (Offset 18 in UPM RAM)
54 */
55 0x0FAFFC04, 0x0FAFEC00, 0x7FFFEC04, 0xFFFFEC04,
wdenkc83bf6a2004-01-06 22:38:14 +000056 0xFFFFEC05, /* last */
57 _NOT_USED_, _NOT_USED_, _NOT_USED_,
wdenkf8cac652002-08-26 22:36:39 +000058 /*
59 * Burst Write. (Offset 20 in UPM RAM)
60 */
61 /* last */
62 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
63 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
64 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
65 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
66 /*
67 * Refresh (Offset 30 in UPM RAM)
68 */
69 /* last */
70 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
71 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
72 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
73 /*
74 * Exception. (Offset 3c in UPM RAM)
75 */
wdenkc83bf6a2004-01-06 22:38:14 +000076 0x7FFFFC07, /* last */
77 _NOT_USED_, _NOT_USED_, _NOT_USED_,
wdenkf8cac652002-08-26 22:36:39 +000078};
79
80
wdenkc83bf6a2004-01-06 22:38:14 +000081const uint sdram_table[] = {
wdenkf8cac652002-08-26 22:36:39 +000082 /*
83 * Single Read. (Offset 0 in UPM RAM)
84 */
85 0x1F07FC04, 0xEEAEFC04, 0x11ADFC04, 0xEFBBBC00,
wdenkc83bf6a2004-01-06 22:38:14 +000086 0x1FF77C47, /* last */
wdenkf8cac652002-08-26 22:36:39 +000087 /*
88 * SDRAM Initialization (offset 5 in UPM RAM)
89 *
wdenk8bde7f72003-06-27 21:31:46 +000090 * This is no UPM entry point. The following definition uses
91 * the remaining space to establish an initialization
92 * sequence, which is executed by a RUN command.
wdenkf8cac652002-08-26 22:36:39 +000093 *
94 */
wdenkc83bf6a2004-01-06 22:38:14 +000095 0x1FF77C35, 0xEFEABC34, 0x1FB57C35, /* last */
wdenkf8cac652002-08-26 22:36:39 +000096 /*
97 * Burst Read. (Offset 8 in UPM RAM)
98 */
99 0x1F07FC04, 0xEEAEFC04, 0x10ADFC04, 0xF0AFFC00,
wdenkc83bf6a2004-01-06 22:38:14 +0000100 0xF0AFFC00, 0xF1AFFC00, 0xEFBBBC00, 0x1FF77C47, /* last */
wdenkf8cac652002-08-26 22:36:39 +0000101 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
102 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
103 /*
104 * Single Write. (Offset 18 in UPM RAM)
105 */
wdenkc83bf6a2004-01-06 22:38:14 +0000106 0x1F27FC04, 0xEEAEBC00, 0x01B93C04, 0x1FF77C47, /* last */
wdenkf8cac652002-08-26 22:36:39 +0000107 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
108 /*
109 * Burst Write. (Offset 20 in UPM RAM)
110 */
111 0x1F07FC04, 0xEEAEBC00, 0x10AD7C00, 0xF0AFFC00,
wdenkc83bf6a2004-01-06 22:38:14 +0000112 0xF0AFFC00, 0xE1BBBC04, 0x1FF77C47, /* last */
113 _NOT_USED_,
wdenkf8cac652002-08-26 22:36:39 +0000114 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
115 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
116 /*
117 * Refresh (Offset 30 in UPM RAM)
118 */
119 0x1FF5FC84, 0xFFFFFC04, 0xFFFFFC04, 0xFFFFFC04,
wdenkc83bf6a2004-01-06 22:38:14 +0000120 0xFFFFFC84, 0xFFFFFC07, /* last */
121 _NOT_USED_, _NOT_USED_,
wdenkf8cac652002-08-26 22:36:39 +0000122 _NOT_USED_, _NOT_USED_, _NOT_USED_, _NOT_USED_,
123 /*
124 * Exception. (Offset 3c in UPM RAM)
125 */
wdenkc83bf6a2004-01-06 22:38:14 +0000126 0x7FFFFC07, /* last */
127 _NOT_USED_, _NOT_USED_, _NOT_USED_,
wdenkf8cac652002-08-26 22:36:39 +0000128};
129
130/* ------------------------------------------------------------------------- */
131
132
133/*
134 * Check Board Identity:
135 *
136 */
137
138int checkboard (void)
139{
140 puts ("Board: SPD823TS\n");
141 return (0);
142}
143
144/* ------------------------------------------------------------------------- */
145
wdenkc83bf6a2004-01-06 22:38:14 +0000146long int initdram (int board_type)
wdenkf8cac652002-08-26 22:36:39 +0000147{
wdenkc83bf6a2004-01-06 22:38:14 +0000148 volatile immap_t *immap = (immap_t *) CFG_IMMR;
149 volatile memctl8xx_t *memctl = &immap->im_memctl;
150 long int size_b0;
wdenkf8cac652002-08-26 22:36:39 +0000151
152#if 0
wdenkc83bf6a2004-01-06 22:38:14 +0000153 /*
154 * Map controller bank 2 to the SRAM bank at preliminary address.
155 */
156 memctl->memc_or2 = CFG_OR2;
157 memctl->memc_br2 = CFG_BR2;
wdenkf8cac652002-08-26 22:36:39 +0000158#endif
159
wdenkc83bf6a2004-01-06 22:38:14 +0000160 /*
161 * Map controller bank 4 to the PER8 bank.
162 */
163 memctl->memc_or4 = CFG_OR4;
164 memctl->memc_br4 = CFG_BR4;
wdenkf8cac652002-08-26 22:36:39 +0000165
166#if 0
wdenkc83bf6a2004-01-06 22:38:14 +0000167 /* Configure SHARC at UMA */
168 upmconfig (UPMA, (uint *) sharc_table,
169 sizeof (sharc_table) / sizeof (uint));
170 /* Map controller bank 5 to the SHARC */
171 memctl->memc_or5 = CFG_OR5;
172 memctl->memc_br5 = CFG_BR5;
wdenkf8cac652002-08-26 22:36:39 +0000173#endif
174
wdenkc83bf6a2004-01-06 22:38:14 +0000175 memctl->memc_mamr = 0x00001000;
wdenkf8cac652002-08-26 22:36:39 +0000176
wdenkc83bf6a2004-01-06 22:38:14 +0000177 /* Configure SDRAM at UMB */
178 upmconfig (UPMB, (uint *) sdram_table,
179 sizeof (sdram_table) / sizeof (uint));
wdenkf8cac652002-08-26 22:36:39 +0000180
wdenkc83bf6a2004-01-06 22:38:14 +0000181 memctl->memc_mptpr = CFG_MPTPR_1BK_8K;
wdenkf8cac652002-08-26 22:36:39 +0000182
wdenkc83bf6a2004-01-06 22:38:14 +0000183 memctl->memc_mar = 0x00000088;
wdenkf8cac652002-08-26 22:36:39 +0000184
wdenkc83bf6a2004-01-06 22:38:14 +0000185 /*
186 * Map controller bank 3 to the SDRAM bank at preliminary address.
187 */
188 memctl->memc_or3 = CFG_OR3_PRELIM;
189 memctl->memc_br3 = CFG_BR3_PRELIM;
wdenkf8cac652002-08-26 22:36:39 +0000190
wdenkc83bf6a2004-01-06 22:38:14 +0000191 memctl->memc_mbmr = CFG_MBMR_8COL; /* refresh not enabled yet */
wdenkf8cac652002-08-26 22:36:39 +0000192
wdenkc83bf6a2004-01-06 22:38:14 +0000193 udelay (200);
194 memctl->memc_mcr = 0x80806105;
195 udelay (1);
196 memctl->memc_mcr = 0x80806130;
197 udelay (1);
198 memctl->memc_mcr = 0x80806130;
199 udelay (1);
200 memctl->memc_mcr = 0x80806106;
wdenkf8cac652002-08-26 22:36:39 +0000201
wdenkc83bf6a2004-01-06 22:38:14 +0000202 memctl->memc_mbmr |= MBMR_PTBE; /* refresh enabled */
wdenkf8cac652002-08-26 22:36:39 +0000203
wdenkc83bf6a2004-01-06 22:38:14 +0000204 /*
205 * Check Bank 0 Memory Size for re-configuration
206 */
207 size_b0 =
208 dram_size (CFG_MBMR_8COL, (ulong *) SDRAM_BASE3_PRELIM,
209 SDRAM_MAX_SIZE);
wdenkf8cac652002-08-26 22:36:39 +0000210
wdenkc83bf6a2004-01-06 22:38:14 +0000211 memctl->memc_mbmr = CFG_MBMR_8COL | MBMR_PTBE;
wdenkf8cac652002-08-26 22:36:39 +0000212
wdenkc83bf6a2004-01-06 22:38:14 +0000213 return (size_b0);
wdenkf8cac652002-08-26 22:36:39 +0000214}
215
216/* ------------------------------------------------------------------------- */
217
218/*
219 * Check memory range for valid RAM. A simple memory test determines
220 * the actually available RAM size between addresses `base' and
221 * `base + maxsize'. Some (not all) hardware errors are detected:
222 * - short between address lines
223 * - short between data lines
224 */
225
wdenkc83bf6a2004-01-06 22:38:14 +0000226static long int dram_size (long int mamr_value, long int *base,
227 long int maxsize)
wdenkf8cac652002-08-26 22:36:39 +0000228{
wdenkc83bf6a2004-01-06 22:38:14 +0000229 volatile immap_t *immap = (immap_t *) CFG_IMMR;
230 volatile memctl8xx_t *memctl = &immap->im_memctl;
wdenkf8cac652002-08-26 22:36:39 +0000231
wdenkc83bf6a2004-01-06 22:38:14 +0000232 memctl->memc_mbmr = mamr_value;
wdenkf8cac652002-08-26 22:36:39 +0000233
wdenkc83bf6a2004-01-06 22:38:14 +0000234 return (get_ram_size (base, maxsize));
wdenkf8cac652002-08-26 22:36:39 +0000235}
236
237/* ------------------------------------------------------------------------- */
238
wdenkc83bf6a2004-01-06 22:38:14 +0000239void reset_phy (void)
wdenkf8cac652002-08-26 22:36:39 +0000240{
wdenkc83bf6a2004-01-06 22:38:14 +0000241 immap_t *immr = (immap_t *) CFG_IMMR;
wdenkf8cac652002-08-26 22:36:39 +0000242 ushort sreg;
243
244 /* Configure extra port pins for NS DP83843 PHY */
245 immr->im_ioport.iop_papar &= ~(PA_ENET_MDC | PA_ENET_MDIO);
246
wdenkc83bf6a2004-01-06 22:38:14 +0000247 sreg = immr->im_ioport.iop_padir;
248 sreg |= PA_ENET_MDC; /* Mgmt. Data Clock is Output */
wdenkf8cac652002-08-26 22:36:39 +0000249 sreg &= ~(PA_ENET_MDIO); /* Mgmt. Data I/O is bidirect. => Input */
250 immr->im_ioport.iop_padir = sreg;
251
252 immr->im_ioport.iop_padat &= ~(PA_ENET_MDC); /* set MDC = 0 */
253
254 /*
wdenk8bde7f72003-06-27 21:31:46 +0000255 * RESET in implemented by a positive pulse of at least 1 us
256 * at the reset pin.
wdenkf8cac652002-08-26 22:36:39 +0000257 *
258 * Configure RESET pins for NS DP83843 PHY, and RESET chip.
259 *
260 * Note: The RESET pin is high active, but there is an
wdenkc83bf6a2004-01-06 22:38:14 +0000261 * inverter on the SPD823TS board...
wdenkf8cac652002-08-26 22:36:39 +0000262 */
263 immr->im_ioport.iop_pcpar &= ~(PC_ENET_RESET);
wdenkc83bf6a2004-01-06 22:38:14 +0000264 immr->im_ioport.iop_pcdir |= PC_ENET_RESET;
wdenkf8cac652002-08-26 22:36:39 +0000265 /* assert RESET signal of PHY */
266 immr->im_ioport.iop_pcdat &= ~(PC_ENET_RESET);
267 udelay (10);
268 /* de-assert RESET signal of PHY */
wdenkc83bf6a2004-01-06 22:38:14 +0000269 immr->im_ioport.iop_pcdat |= PC_ENET_RESET;
wdenkf8cac652002-08-26 22:36:39 +0000270 udelay (10);
271}
272
273/* ------------------------------------------------------------------------- */
274
wdenkc83bf6a2004-01-06 22:38:14 +0000275void ide_set_reset (int on)
wdenkf8cac652002-08-26 22:36:39 +0000276{
wdenkc83bf6a2004-01-06 22:38:14 +0000277 volatile immap_t *immr = (immap_t *) CFG_IMMR;
wdenkf8cac652002-08-26 22:36:39 +0000278
279 /*
280 * Configure PC for IDE Reset Pin
281 */
282 if (on) { /* assert RESET */
283 immr->im_ioport.iop_pcdat &= ~(CFG_PC_IDE_RESET);
284 } else { /* release RESET */
wdenkc83bf6a2004-01-06 22:38:14 +0000285 immr->im_ioport.iop_pcdat |= CFG_PC_IDE_RESET;
wdenkf8cac652002-08-26 22:36:39 +0000286 }
287
288 /* program port pin as GPIO output */
289 immr->im_ioport.iop_pcpar &= ~(CFG_PC_IDE_RESET);
wdenkc83bf6a2004-01-06 22:38:14 +0000290 immr->im_ioport.iop_pcso &= ~(CFG_PC_IDE_RESET);
291 immr->im_ioport.iop_pcdir |= CFG_PC_IDE_RESET;
wdenkf8cac652002-08-26 22:36:39 +0000292}
293
294/* ------------------------------------------------------------------------- */