Gitiles
Code Review Sign In
gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 66fd3d1ce732d9168d6a056986231ada8dfa500e / . / board / atc / atc.c
blob: 21ed2b051632ff42dee302fa27fe93866d44e057 [file] [log] [blame]
wdenk7aa78612003-05-03 15:50:43 +0000[diff] [blame]1/*
2 * (C) Copyright 2001
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <ioports.h>
26#include <mpc8260.h>
wdenk66fd3d12003-05-18 11:30:09 +0000[diff] [blame^]27#include <pci.h>
wdenk7aa78612003-05-03 15:50:43 +0000[diff] [blame]28
29/*
30 * I/O Port configuration table
31 *
32 * if conf is 1, then that port pin will be configured at boot time
33 * according to the five values podr/pdir/ppar/psor/pdat for that entry
34 */
35
36const iop_conf_t iop_conf_tab[4][32] = {
37
38 /* Port A configuration */
39 { /* conf ppar psor pdir podr pdat */
40 /* PA31 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII COL */
41 /* PA30 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII CRS */
42 /* PA29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_ER */
43 /* PA28 */ { 1, 1, 1, 1, 0, 0 }, /* FCC1 MII TX_EN */
44 /* PA27 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_DV */
45 /* PA26 */ { 1, 1, 1, 0, 0, 0 }, /* FCC1 MII RX_ER */
46 /* PA25 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MII MDIO */
47 /* PA24 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MII MDC */
48 /* PA23 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 MII MDIO */
49 /* PA22 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 MII MDC */
50 /* PA21 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[3] */
51 /* PA20 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[2] */
52 /* PA19 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[1] */
53 /* PA18 */ { 1, 1, 0, 1, 0, 0 }, /* FCC1 MII TxD[0] */
54 /* PA17 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[0] */
55 /* PA16 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[1] */
56 /* PA15 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[2] */
57 /* PA14 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RxD[3] */
58 /* PA13 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MII TXSL1 */
59 /* PA12 */ { 1, 0, 0, 1, 0, 1 }, /* FCC2 MII TXSL0 */
60 /* PA11 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 MII TXSL1 */
61 /* PA10 */ { 1, 0, 0, 1, 0, 1 }, /* FCC1 MII TXSL0 */
62#if 1
63 /* PA9 */ { 0, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
64 /* PA8 */ { 0, 1, 0, 0, 0, 0 }, /* SMC2 RXD */
65#else
66 /* PA9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC2 TXD */
67 /* PA8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC2 RXD */
68#endif
69 /* PA7 */ { 0, 0, 0, 0, 0, 0 }, /* PA7 */
70 /* PA6 */ { 1, 0, 0, 1, 0, 1 }, /* FCC2 MII PAUSE */
71 /* PA5 */ { 1, 0, 0, 1, 0, 1 }, /* FCC1 MII PAUSE */
72 /* PA4 */ { 1, 0, 0, 1, 0, 0 }, /* FCC2 MII PWRDN */
73 /* PA3 */ { 1, 0, 0, 1, 0, 0 }, /* FCC1 MII PWRDN */
74 /* PA2 */ { 0, 0, 0, 0, 0, 0 }, /* PA2 */
75 /* PA1 */ { 1, 0, 0, 0, 0, 0 }, /* FCC2 MII MDINT */
76 /* PA0 */ { 1, 0, 0, 1, 0, 0 } /* FCC1 MII MDINT */
77 },
78
79 /* Port B configuration */
80 { /* conf ppar psor pdir podr pdat */
81 /* PB31 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TX_ER */
82 /* PB30 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_DV */
83 /* PB29 */ { 1, 1, 1, 1, 0, 0 }, /* FCC2 MII TX_EN */
84 /* PB28 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_ER */
85 /* PB27 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII COL */
86 /* PB26 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII CRS */
87 /* PB25 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[3] */
88 /* PB24 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[2] */
89 /* PB23 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[1] */
90 /* PB22 */ { 1, 1, 0, 1, 0, 0 }, /* FCC2 MII TxD[0] */
91 /* PB21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[0] */
92 /* PB20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[1] */
93 /* PB19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[2] */
94 /* PB18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RxD[3] */
95 /* PB17 */ { 0, 0, 0, 0, 0, 0 }, /* PB17 */
96 /* PB16 */ { 0, 0, 0, 0, 0, 0 }, /* PB16 */
97 /* PB15 */ { 0, 0, 0, 0, 0, 0 }, /* PB15 */
98 /* PB14 */ { 0, 0, 0, 0, 0, 0 }, /* PB14 */
99 /* PB13 */ { 0, 0, 0, 0, 0, 0 }, /* PB13 */
100 /* PB12 */ { 0, 0, 0, 0, 0, 0 }, /* PB12 */
101 /* PB11 */ { 0, 0, 0, 0, 0, 0 }, /* PB11 */
102 /* PB10 */ { 0, 0, 0, 0, 0, 0 }, /* PB10 */
103 /* PB9 */ { 0, 0, 0, 0, 0, 0 }, /* PB9 */
104 /* PB8 */ { 0, 0, 0, 0, 0, 0 }, /* PB8 */
105 /* PB7 */ { 0, 0, 0, 0, 0, 0 }, /* PB7 */
106 /* PB6 */ { 0, 0, 0, 0, 0, 0 }, /* PB6 */
107 /* PB5 */ { 0, 0, 0, 0, 0, 0 }, /* PB5 */
108 /* PB4 */ { 0, 0, 0, 0, 0, 0 }, /* PB4 */
109 /* PB3 */ { 0, 0, 0, 0, 0, 0 }, /* PB3 */
110 /* PB2 */ { 0, 0, 0, 0, 0, 0 }, /* PB2 */
111 /* PB1 */ { 0, 0, 0, 0, 0, 0 }, /* PB1 */
112 /* PB0 */ { 0, 0, 0, 0, 0, 0 } /* PB0 */
113 },
114
115 /* Port C */
116 { /* conf ppar psor pdir podr pdat */
117 /* PC31 */ { 0, 0, 0, 0, 0, 0 }, /* PC31 */
118 /* PC30 */ { 0, 0, 0, 0, 0, 0 }, /* PC30 */
119 /* PC29 */ { 1, 0, 0, 0, 0, 0 }, /* SCC1 CTS */
120 /* PC28 */ { 1, 0, 0, 0, 0, 0 }, /* SCC2 CTS */
121 /* PC27 */ { 0, 0, 0, 0, 0, 0 }, /* PC27 */
122 /* PC26 */ { 0, 0, 0, 0, 0, 0 }, /* PC26 */
123 /* PC25 */ { 0, 0, 0, 0, 0, 0 }, /* PC25 */
124 /* PC24 */ { 0, 0, 0, 0, 0, 0 }, /* PC24 */
125 /* PC23 */ { 0, 0, 0, 0, 0, 0 }, /* FDC37C78 DACFD */
126 /* PC22 */ { 0, 0, 0, 0, 0, 0 }, /* FDC37C78 DNFD */
127 /* PC21 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII RX_CLK */
128 /* PC20 */ { 1, 1, 0, 0, 0, 0 }, /* FCC1 MII TX_CLK */
129 /* PC19 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII RX_CLK */
130 /* PC18 */ { 1, 1, 0, 0, 0, 0 }, /* FCC2 MII TX_CLK */
131 /* PC17 */ { 0, 0, 0, 0, 0, 0 }, /* PC17 */
132 /* PC16 */ { 0, 0, 0, 0, 0, 0 }, /* PC16 */
133#if 0
134 /* PC15 */ { 0, 0, 0, 0, 0, 0 }, /* PC15 */
135#else
136 /* PC15 */ { 1, 1, 0, 1, 0, 0 }, /* PC15 */
137#endif
138 /* PC14 */ { 0, 0, 0, 0, 0, 0 }, /* PC14 */
139 /* PC13 */ { 0, 0, 0, 0, 0, 0 }, /* PC13 */
140 /* PC12 */ { 0, 0, 0, 0, 0, 0 }, /* PC12 */
141 /* PC11 */ { 0, 0, 0, 0, 0, 0 }, /* PC11 */
142 /* PC10 */ { 0, 0, 0, 0, 0, 0 }, /* PC10 */
143 /* PC9 */ { 0, 0, 0, 0, 0, 0 }, /* FC9 */
144 /* PC8 */ { 0, 0, 0, 0, 0, 0 }, /* PC8 */
145 /* PC7 */ { 0, 0, 0, 0, 0, 0 }, /* PC7 */
146 /* PC6 */ { 0, 0, 0, 0, 0, 0 }, /* PC6 */
147 /* PC5 */ { 0, 0, 0, 0, 0, 0 }, /* PC5 */
148 /* PC4 */ { 0, 0, 0, 0, 0, 0 }, /* PC4 */
149 /* PC3 */ { 0, 0, 0, 0, 0, 0 }, /* PC3 */
150 /* PC2 */ { 0, 0, 0, 0, 0, 0 }, /* PC2 */
151 /* PC1 */ { 0, 0, 0, 0, 0, 0 }, /* PC1 */
152 /* PC0 */ { 0, 0, 0, 0, 0, 0 }, /* FDC37C78 DRQFD */
153 },
154
155 /* Port D */
156 { /* conf ppar psor pdir podr pdat */
157 /* PD31 */ { 1, 1, 0, 0, 0, 0 }, /* SCC1 RXD */
158 /* PD30 */ { 1, 1, 1, 1, 0, 0 }, /* SCC1 TXD */
159 /* PD29 */ { 1, 0, 0, 1, 0, 0 }, /* SCC1 RTS */
160 /* PD28 */ { 1, 1, 0, 0, 0, 0 }, /* SCC2 RXD */
161 /* PD27 */ { 1, 1, 0, 1, 0, 0 }, /* SCC2 TXD */
162 /* PD26 */ { 1, 0, 0, 1, 0, 0 }, /* SCC2 RTS */
163 /* PD25 */ { 0, 0, 0, 0, 0, 0 }, /* PD25 */
164 /* PD24 */ { 0, 0, 0, 0, 0, 0 }, /* PD24 */
165 /* PD23 */ { 0, 0, 0, 0, 0, 0 }, /* PD23 */
166 /* PD22 */ { 0, 0, 0, 0, 0, 0 }, /* PD22 */
167 /* PD21 */ { 0, 0, 0, 0, 0, 0 }, /* PD21 */
168 /* PD20 */ { 0, 0, 0, 0, 0, 0 }, /* PD20 */
169 /* PD19 */ { 0, 0, 0, 0, 0, 0 }, /* PD19 */
170 /* PD18 */ { 0, 0, 0, 0, 0, 0 }, /* PD18 */
171 /* PD17 */ { 0, 0, 0, 0, 0, 0 }, /* PD17 */
172 /* PD16 */ { 0, 0, 0, 0, 0, 0 }, /* PD16 */
173#if defined(CONFIG_SOFT_I2C)
174 /* PD15 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SDA */
175 /* PD14 */ { 1, 0, 0, 1, 1, 1 }, /* I2C SCL */
176#else
177#if defined(CONFIG_HARD_I2C)
178 /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
179 /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
180#else /* normal I/O port pins */
181 /* PD15 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SDA */
182 /* PD14 */ { 1, 1, 1, 0, 1, 0 }, /* I2C SCL */
183#endif
184#endif
185 /* PD13 */ { 0, 0, 0, 0, 0, 0 }, /* PD13 */
186 /* PD12 */ { 0, 0, 0, 0, 0, 0 }, /* PD12 */
187 /* PD11 */ { 0, 0, 0, 0, 0, 0 }, /* PD11 */
188 /* PD10 */ { 0, 0, 0, 0, 0, 0 }, /* PD10 */
189 /* PD9 */ { 1, 1, 0, 1, 0, 0 }, /* SMC1 TXD */
190 /* PD8 */ { 1, 1, 0, 0, 0, 0 }, /* SMC1 RXD */
191 /* PD7 */ { 0, 0, 0, 0, 0, 0 }, /* PD7 */
192 /* PD6 */ { 0, 0, 0, 0, 0, 0 }, /* PD6 */
193 /* PD5 */ { 0, 0, 0, 0, 0, 0 }, /* PD5 */
194#if 0
195 /* PD4 */ { 0, 0, 0, 0, 0, 0 }, /* PD4 */
196#else
197 /* PD4 */ { 1, 1, 1, 0, 0, 0 }, /* PD4 */
198#endif
199 /* PD3 */ { 0, 0, 0, 0, 0, 0 }, /* PD3 */
200 /* PD2 */ { 0, 0, 0, 0, 0, 0 }, /* PD2 */
201 /* PD1 */ { 0, 0, 0, 0, 0, 0 }, /* PD1 */
202 /* PD0 */ { 0, 0, 0, 0, 0, 0 } /* PD0 */
203 }
204};
205
206/* ------------------------------------------------------------------------- */
207
208/* Check Board Identity:
209 */
210int checkboard (void)
211{
212 printf ("Board: ATC\n");
213 return 0;
214}
215
216/* ------------------------------------------------------------------------- */
217
218/* Try SDRAM initialization with P/LSDMR=sdmr and ORx=orx
219 *
220 * This routine performs standard 8260 initialization sequence
221 * and calculates the available memory size. It may be called
222 * several times to try different SDRAM configurations on both
223 * 60x and local buses.
224 */
225static long int try_init (volatile memctl8260_t * memctl, ulong sdmr,
226 ulong orx, volatile uchar * base)
227{
228 volatile uchar c = 0xff;
229 ulong cnt, val;
230 volatile ulong *addr;
231 volatile uint *sdmr_ptr;
232 volatile uint *orx_ptr;
233 int i;
234 ulong save[32]; /* to make test non-destructive */
235 ulong maxsize;
236
237 /* We must be able to test a location outsize the maximum legal size
238 * to find out THAT we are outside; but this address still has to be
239 * mapped by the controller. That means, that the initial mapping has
240 * to be (at least) twice as large as the maximum expected size.
241 */
242 maxsize = (1 + (~orx | 0x7fff)) / 2;
243
244 /* Since CFG_SDRAM_BASE is always 0 (??), we assume that
245 * we are configuring CS1 if base != 0
246 */
247 sdmr_ptr = &memctl->memc_psdmr;
248 orx_ptr = &memctl->memc_or2;
249
250 *orx_ptr = orx;
251
252 /*
253 * Quote from 8260 UM (10.4.2 SDRAM Power-On Initialization, 10-35):
254 *
255 * "At system reset, initialization software must set up the
256 * programmable parameters in the memory controller banks registers
257 * (ORx, BRx, P/LSDMR). After all memory parameters are configured,
258 * system software should execute the following initialization sequence
259 * for each SDRAM device.
260 *
261 * 1. Issue a PRECHARGE-ALL-BANKS command
262 * 2. Issue eight CBR REFRESH commands
263 * 3. Issue a MODE-SET command to initialize the mode register
264 *
265 * The initial commands are executed by setting P/LSDMR[OP] and
266 * accessing the SDRAM with a single-byte transaction."
267 *
268 * The appropriate BRx/ORx registers have already been set when we
269 * get here. The SDRAM can be accessed at the address CFG_SDRAM_BASE.
270 */
271
272 *sdmr_ptr = sdmr | PSDMR_OP_PREA;
273 *base = c;
274
275 *sdmr_ptr = sdmr | PSDMR_OP_CBRR;
276 for (i = 0; i < 8; i++)
277 *base = c;
278
279 *sdmr_ptr = sdmr | PSDMR_OP_MRW;
280 *(base + CFG_MRS_OFFS) = c; /* setting MR on address lines */
281
282 *sdmr_ptr = sdmr | PSDMR_OP_NORM | PSDMR_RFEN;
283 *base = c;
284
285 /*
286 * Check memory range for valid RAM. A simple memory test determines
287 * the actually available RAM size between addresses `base' and
288 * `base + maxsize'. Some (not all) hardware errors are detected:
289 * - short between address lines
290 * - short between data lines
291 */
292 i = 0;
293 for (cnt = maxsize / sizeof (long); cnt > 0; cnt >>= 1) {
294 addr = (volatile ulong *) base + cnt; /* pointer arith! */
295 save[i++] = *addr;
296 *addr = ~cnt;
297 }
298
299 addr = (volatile ulong *) base;
300 save[i] = *addr;
301 *addr = 0;
302
303 if ((val = *addr) != 0) {
304 *addr = save[i];
305 return (0);
306 }
307
308 for (cnt = 1; cnt <= maxsize / sizeof (long); cnt <<= 1) {
309 addr = (volatile ulong *) base + cnt; /* pointer arith! */
310 val = *addr;
311 *addr = save[--i];
312 if (val != ~cnt) {
313 /* Write the actual size to ORx
314 */
315 *orx_ptr = orx | ~(cnt * sizeof (long) - 1);
316 return (cnt * sizeof (long));
317 }
318 }
319 return (maxsize);
320}
321
322long int initdram (int board_type)
323{
324 volatile immap_t *immap = (immap_t *) CFG_IMMR;
325 volatile memctl8260_t *memctl = &immap->im_memctl;
326
327#ifndef CFG_RAMBOOT
328 ulong size8, size9;
329#endif
330 long psize;
331
332 psize = 8 * 1024 * 1024;
333
334 memctl->memc_mptpr = CFG_MPTPR;
335 memctl->memc_psrt = CFG_PSRT;
336
337#ifndef CFG_RAMBOOT
338 /* 60x SDRAM setup:
339 */
340 size8 = try_init (memctl, CFG_PSDMR_8COL, CFG_OR2_8COL,
341 (uchar *) CFG_SDRAM_BASE);
342 size9 = try_init (memctl, CFG_PSDMR_9COL, CFG_OR2_9COL,
343 (uchar *) CFG_SDRAM_BASE);
344
345 if (size8 < size9) {
346 psize = size9;
347 printf ("(60x:9COL) ");
348 } else {
349 psize = try_init (memctl, CFG_PSDMR_8COL, CFG_OR2_8COL,
350 (uchar *) CFG_SDRAM_BASE);
351 printf ("(60x:8COL) ");
352 }
353
354#endif /* CFG_RAMBOOT */
355
356 icache_enable ();
357
358 return (psize);
359}
360
361#if (CONFIG_COMMANDS & CFG_CMD_DOC)
362extern void doc_probe (ulong physadr);
363void doc_init (void)
364{
365 doc_probe (CFG_DOC_BASE);
366}
367#endif
wdenk66fd3d12003-05-18 11:30:09 +0000[diff] [blame^]368
369#ifdef CONFIG_PCI
370struct pci_controller hose;
371
372extern void pci_mpc8250_init(struct pci_controller *);
373
374void pci_init_board(void)
375{
376 pci_mpc8250_init(&hose);
377}
378#endif