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wdenkaffae2b2002-08-17 09:36:01 +00001/*
2 * (C) Copyright 2000, 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/*
25 * Modified 4/5/2001
26 * Wait for completion of each sector erase command issued
27 * 4/5/2001
28 * Chris Hallinan - DS4.COM, Inc. - clh@net1plus.com
29 */
30
31/*
32 * Modified 3/7/2001
wdenk33149b82003-05-23 11:38:58 +000033 * - adapted for pip405, Denis Peter, MPL AG Switzerland
wdenkaffae2b2002-08-17 09:36:01 +000034 * TODO:
35 * clean-up
36 */
37
38#include <common.h>
wdenkb6e4c402004-01-02 16:05:07 +000039
40#if !defined(CONFIG_PATI)
wdenkaffae2b2002-08-17 09:36:01 +000041#include <ppc4xx.h>
42#include <asm/processor.h>
wdenkaffae2b2002-08-17 09:36:01 +000043#include "common_util.h"
wdenk7205e402003-09-10 22:30:53 +000044#if defined(CONFIG_MIP405)
45#include "../mip405/mip405.h"
46#endif
47#if defined(CONFIG_PIP405)
48#include "../pip405/pip405.h"
49#endif
Stefan Roese3048bcb2007-10-03 15:01:02 +020050#include <asm/4xx_pci.h>
wdenkb6e4c402004-01-02 16:05:07 +000051#else /* defined(CONFIG_PATI) */
52#include <mpc5xx.h>
53#endif
wdenkaffae2b2002-08-17 09:36:01 +000054
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020055flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
wdenkaffae2b2002-08-17 09:36:01 +000056/*-----------------------------------------------------------------------
57 * Functions
58 */
59static ulong flash_get_size (vu_long *addr, flash_info_t *info);
60static int write_word (flash_info_t *info, ulong dest, ulong data);
wdenkaffae2b2002-08-17 09:36:01 +000061
62void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt);
63
wdenkaffae2b2002-08-17 09:36:01 +000064#define ADDR0 0x5555
65#define ADDR1 0x2aaa
66#define FLASH_WORD_SIZE unsigned short
wdenkaffae2b2002-08-17 09:36:01 +000067
68#define FALSE 0
69#define TRUE 1
70
wdenkb6e4c402004-01-02 16:05:07 +000071#if !defined(CONFIG_PATI)
72
wdenkaffae2b2002-08-17 09:36:01 +000073/*-----------------------------------------------------------------------
wdenk7205e402003-09-10 22:30:53 +000074 * Some CS switching routines:
75 *
76 * On PIP/MIP405 we have 3 (4) possible boot mode
77 *
78 * - Boot from Flash (Flash CS = CS0, MPS CS = CS1)
79 * - Boot from MPS (Flash CS = CS1, MPS CS = CS0)
80 * - Boot from PCI with Flash map (Flash CS = CS0, MPS CS = CS1)
81 * - Boot from PCI with MPS map (Flash CS = CS1, MPS CS = CS0)
82 * The flash init is the first board specific routine which is called
83 * after code relocation (running from SDRAM)
84 * The first thing we do is to map the Flash CS to the Flash area and
85 * the MPS CS to the MPS area. Since the flash size is unknown at this
86 * point, we use the max flash size and the lowest flash address as base.
wdenk42d1f032003-10-15 23:53:47 +000087 *
wdenk7205e402003-09-10 22:30:53 +000088 * After flash detection we adjust the size of the CS area accordingly.
89 * The board_init_r will fill in wrong values in the board init structure,
90 * but this will be fixed in the misc_init_r routine:
91 * bd->bi_flashstart=0-flash_info[0].size
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +020092 * bd->bi_flashsize=flash_info[0].size-CONFIG_SYS_MONITOR_LEN
wdenk7205e402003-09-10 22:30:53 +000093 * bd->bi_flashoffset=0
wdenk42d1f032003-10-15 23:53:47 +000094 *
wdenkaffae2b2002-08-17 09:36:01 +000095 */
wdenk7205e402003-09-10 22:30:53 +000096int get_boot_mode(void)
97{
98 unsigned long pbcr;
99 int res = 0;
Stefan Roesed1c3b272009-09-09 16:25:29 +0200100 pbcr = mfdcr (CPC0_PSR);
wdenk7205e402003-09-10 22:30:53 +0000101 if ((pbcr & PSR_ROM_WIDTH_MASK) == 0)
102 /* boot via MPS or MPS mapping */
103 res = BOOT_MPS;
104 if(pbcr & PSR_ROM_LOC)
105 /* boot via PCI.. */
106 res |= BOOT_PCI;
107 return res;
108}
109
110/* Map the flash high (in boot area)
111 This code can only be executed from SDRAM (after relocation).
112*/
113void setup_cs_reloc(void)
114{
115 int mode;
116 /* Since we are relocated, we can set-up the CS finaly
117 * but first of all, switch off PCI mapping (in case it was a PCI boot) */
118 out32r(PMM0MA,0L);
119 icache_enable (); /* we are relocated */
120 /* get boot mode */
121 mode=get_boot_mode();
122 /* we map the flash high in every case */
123 /* first findout on which cs the flash is */
124 if(mode & BOOT_MPS) {
125 /* map flash high on CS1 and MPS on CS0 */
Stefan Roesed1c3b272009-09-09 16:25:29 +0200126 mtdcr (EBC0_CFGADDR, PB0AP);
127 mtdcr (EBC0_CFGDATA, MPS_AP);
128 mtdcr (EBC0_CFGADDR, PB0CR);
129 mtdcr (EBC0_CFGDATA, MPS_CR);
wdenk7205e402003-09-10 22:30:53 +0000130 /* we use the default values (max values) for the flash
131 * because its real size is not yet known */
Stefan Roesed1c3b272009-09-09 16:25:29 +0200132 mtdcr (EBC0_CFGADDR, PB1AP);
133 mtdcr (EBC0_CFGDATA, FLASH_AP);
134 mtdcr (EBC0_CFGADDR, PB1CR);
135 mtdcr (EBC0_CFGDATA, FLASH_CR_B);
wdenk7205e402003-09-10 22:30:53 +0000136 }
137 else {
138 /* map flash high on CS0 and MPS on CS1 */
Stefan Roesed1c3b272009-09-09 16:25:29 +0200139 mtdcr (EBC0_CFGADDR, PB1AP);
140 mtdcr (EBC0_CFGDATA, MPS_AP);
141 mtdcr (EBC0_CFGADDR, PB1CR);
142 mtdcr (EBC0_CFGDATA, MPS_CR);
wdenk7205e402003-09-10 22:30:53 +0000143 /* we use the default values (max values) for the flash
144 * because its real size is not yet known */
Stefan Roesed1c3b272009-09-09 16:25:29 +0200145 mtdcr (EBC0_CFGADDR, PB0AP);
146 mtdcr (EBC0_CFGDATA, FLASH_AP);
147 mtdcr (EBC0_CFGADDR, PB0CR);
148 mtdcr (EBC0_CFGDATA, FLASH_CR_B);
wdenk7205e402003-09-10 22:30:53 +0000149 }
150}
151
wdenkb6e4c402004-01-02 16:05:07 +0000152#endif /* #if !defined(CONFIG_PATI) */
wdenkaffae2b2002-08-17 09:36:01 +0000153
wdenkaffae2b2002-08-17 09:36:01 +0000154unsigned long flash_init (void)
155{
wdenkb6e4c402004-01-02 16:05:07 +0000156 unsigned long size_b0;
157 int i;
158
159#if !defined(CONFIG_PATI)
160 unsigned long size_b1,flashcr,size_reg;
161 int mode;
wdenk7205e402003-09-10 22:30:53 +0000162 extern char version_string;
Wolfgang Denkd0ff51b2008-07-14 15:19:07 +0200163 char *p = &version_string;
wdenkaffae2b2002-08-17 09:36:01 +0000164
wdenk33149b82003-05-23 11:38:58 +0000165 /* Since we are relocated, we can set-up the CS finally */
166 setup_cs_reloc();
167 /* get and display boot mode */
wdenk7205e402003-09-10 22:30:53 +0000168 mode=get_boot_mode();
169 if(mode & BOOT_PCI)
170 printf("(PCI Boot %s Map) ",(mode & BOOT_MPS) ?
wdenk33149b82003-05-23 11:38:58 +0000171 "MPS" : "Flash");
wdenkaffae2b2002-08-17 09:36:01 +0000172 else
wdenk7205e402003-09-10 22:30:53 +0000173 printf("(%s Boot) ",(mode & BOOT_MPS) ?
wdenk33149b82003-05-23 11:38:58 +0000174 "MPS" : "Flash");
wdenkb6e4c402004-01-02 16:05:07 +0000175#endif /* #if !defined(CONFIG_PATI) */
wdenkaffae2b2002-08-17 09:36:01 +0000176 /* Init: no FLASHes known */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200177 for (i=0; i<CONFIG_SYS_MAX_FLASH_BANKS; ++i) {
wdenkaffae2b2002-08-17 09:36:01 +0000178 flash_info[i].flash_id = FLASH_UNKNOWN;
179 }
180
181 /* Static FLASH Bank configuration here - FIXME XXX */
182
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200183 size_b0 = flash_get_size((vu_long *)CONFIG_SYS_MONITOR_BASE, &flash_info[0]);
wdenkaffae2b2002-08-17 09:36:01 +0000184
185 if (flash_info[0].flash_id == FLASH_UNKNOWN) {
186 printf ("## Unknown FLASH on Bank 0 - Size = 0x%08lx = %ld MB\n",
187 size_b0, size_b0<<20);
188 }
wdenk33149b82003-05-23 11:38:58 +0000189 /* protect the bootloader */
190 /* Monitor protection ON by default */
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200191#if CONFIG_SYS_MONITOR_BASE >= CONFIG_SYS_FLASH_BASE
wdenk33149b82003-05-23 11:38:58 +0000192 flash_protect(FLAG_PROTECT_SET,
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200193 CONFIG_SYS_MONITOR_BASE,
194 CONFIG_SYS_MONITOR_BASE+monitor_flash_len-1,
wdenk33149b82003-05-23 11:38:58 +0000195 &flash_info[0]);
wdenkaffae2b2002-08-17 09:36:01 +0000196#endif
wdenkb6e4c402004-01-02 16:05:07 +0000197#if !defined(CONFIG_PATI)
wdenk27b207f2003-07-24 23:38:38 +0000198 /* protect reset vector */
199 flash_info[0].protect[flash_info[0].sector_count-1] = 1;
wdenk33149b82003-05-23 11:38:58 +0000200 size_b1 = 0 ;
201 flash_info[0].size = size_b0;
wdenk7205e402003-09-10 22:30:53 +0000202 /* set up flash cs according to the size */
wdenk4a551702003-10-08 23:26:14 +0000203 size_reg=(flash_info[0].size >>20);
204 switch (size_reg) {
205 case 0:
206 case 1: i=0; break; /* <= 1MB */
207 case 2: i=1; break; /* = 2MB */
208 case 4: i=2; break; /* = 4MB */
209 case 8: i=3; break; /* = 8MB */
210 case 16: i=4; break; /* = 16MB */
211 case 32: i=5; break; /* = 32MB */
212 case 64: i=6; break; /* = 64MB */
213 case 128: i=7; break; /*= 128MB */
wdenk42d1f032003-10-15 23:53:47 +0000214 default:
wdenk4a551702003-10-08 23:26:14 +0000215 printf("\n #### ERROR, wrong size %ld MByte reset board #####\n",size_reg);
216 while(1);
217 }
wdenk7205e402003-09-10 22:30:53 +0000218 if(mode & BOOT_MPS) {
219 /* flash is on CS1 */
Stefan Roesed1c3b272009-09-09 16:25:29 +0200220 mtdcr(EBC0_CFGADDR, PB1CR);
221 flashcr = mfdcr (EBC0_CFGDATA);
wdenk7205e402003-09-10 22:30:53 +0000222 /* we map the flash high in every case */
223 flashcr&=0x0001FFFF; /* mask out address bits */
224 flashcr|= ((0-flash_info[0].size) & 0xFFF00000); /* start addr */
wdenk4a551702003-10-08 23:26:14 +0000225 flashcr|= (i << 17); /* size addr */
Stefan Roesed1c3b272009-09-09 16:25:29 +0200226 mtdcr(EBC0_CFGADDR, PB1CR);
227 mtdcr(EBC0_CFGDATA, flashcr);
wdenk7205e402003-09-10 22:30:53 +0000228 }
229 else {
230 /* flash is on CS0 */
Stefan Roesed1c3b272009-09-09 16:25:29 +0200231 mtdcr(EBC0_CFGADDR, PB0CR);
232 flashcr = mfdcr (EBC0_CFGDATA);
wdenk7205e402003-09-10 22:30:53 +0000233 /* we map the flash high in every case */
234 flashcr&=0x0001FFFF; /* mask out address bits */
235 flashcr|= ((0-flash_info[0].size) & 0xFFF00000); /* start addr */
wdenk4a551702003-10-08 23:26:14 +0000236 flashcr|= (i << 17); /* size addr */
Stefan Roesed1c3b272009-09-09 16:25:29 +0200237 mtdcr(EBC0_CFGADDR, PB0CR);
238 mtdcr(EBC0_CFGDATA, flashcr);
wdenk7205e402003-09-10 22:30:53 +0000239 }
wdenkaffae2b2002-08-17 09:36:01 +0000240#if 0
wdenkb6e4c402004-01-02 16:05:07 +0000241 /* enable this (PIP405/MIP405 only) if you want to test if
wdenk33149b82003-05-23 11:38:58 +0000242 the relocation has be done ok.
243 This will disable both Chipselects */
Stefan Roesed1c3b272009-09-09 16:25:29 +0200244 mtdcr (EBC0_CFGADDR, PB0CR);
245 mtdcr (EBC0_CFGDATA, 0L);
246 mtdcr (EBC0_CFGADDR, PB1CR);
247 mtdcr (EBC0_CFGDATA, 0L);
wdenk33149b82003-05-23 11:38:58 +0000248 printf("CS0 & CS1 switched off for test\n");
249#endif
wdenk7205e402003-09-10 22:30:53 +0000250 /* patch version_string */
251 for(i=0;i<0x100;i++) {
252 if(*p=='\n') {
253 *p=0;
254 break;
255 }
256 p++;
257 }
wdenkb6e4c402004-01-02 16:05:07 +0000258#else /* #if !defined(CONFIG_PATI) */
Jean-Christophe PLAGNIOL-VILLARD5a1aceb2008-09-10 22:48:04 +0200259#ifdef CONFIG_ENV_IS_IN_FLASH
wdenkb6e4c402004-01-02 16:05:07 +0000260 /* ENV protection ON by default */
261 flash_protect(FLAG_PROTECT_SET,
Jean-Christophe PLAGNIOL-VILLARD0e8d1582008-09-10 22:48:06 +0200262 CONFIG_ENV_ADDR,
263 CONFIG_ENV_ADDR+CONFIG_ENV_SECT_SIZE-1,
wdenkb6e4c402004-01-02 16:05:07 +0000264 &flash_info[0]);
265#endif
266#endif /* #if !defined(CONFIG_PATI) */
wdenk33149b82003-05-23 11:38:58 +0000267 return (size_b0);
wdenkaffae2b2002-08-17 09:36:01 +0000268}
269
wdenk33149b82003-05-23 11:38:58 +0000270
wdenkaffae2b2002-08-17 09:36:01 +0000271/*-----------------------------------------------------------------------
272 */
273void flash_print_info (flash_info_t *info)
274{
275 int i;
wdenk33149b82003-05-23 11:38:58 +0000276 int k;
277 int size;
278 int erased;
279 volatile unsigned long *flash;
wdenkaffae2b2002-08-17 09:36:01 +0000280
281 if (info->flash_id == FLASH_UNKNOWN) {
282 printf ("missing or unknown FLASH type\n");
283 return;
284 }
285
286 switch (info->flash_id & FLASH_VENDMASK) {
287 case FLASH_MAN_AMD: printf ("AMD "); break;
288 case FLASH_MAN_FUJ: printf ("FUJITSU "); break;
289 case FLASH_MAN_SST: printf ("SST "); break;
290 case FLASH_MAN_INTEL: printf ("Intel "); break;
291 default: printf ("Unknown Vendor "); break;
292 }
293
294 switch (info->flash_id & FLASH_TYPEMASK) {
295 case FLASH_AM040: printf ("AM29F040 (512 Kbit, uniform sector size)\n");
296 break;
297 case FLASH_AM400B: printf ("AM29LV400B (4 Mbit, bottom boot sect)\n");
298 break;
299 case FLASH_AM400T: printf ("AM29LV400T (4 Mbit, top boot sector)\n");
300 break;
301 case FLASH_AM800B: printf ("AM29LV800B (8 Mbit, bottom boot sect)\n");
302 break;
303 case FLASH_AM800T: printf ("AM29LV800T (8 Mbit, top boot sector)\n");
304 break;
305 case FLASH_AM160B: printf ("AM29LV160B (16 Mbit, bottom boot sect)\n");
306 break;
307 case FLASH_AM160T: printf ("AM29LV160T (16 Mbit, top boot sector)\n");
308 break;
309 case FLASH_AM320B: printf ("AM29LV320B (32 Mbit, bottom boot sect)\n");
310 break;
311 case FLASH_AM320T: printf ("AM29LV320T (32 Mbit, top boot sector)\n");
312 break;
313 case FLASH_SST800A: printf ("SST39LF/VF800 (8 Mbit, uniform sector size)\n");
314 break;
315 case FLASH_SST160A: printf ("SST39LF/VF160 (16 Mbit, uniform sector size)\n");
316 break;
317 case FLASH_INTEL320T: printf ("TE28F320C3 (32 Mbit, top sector size)\n");
318 break;
wdenk7205e402003-09-10 22:30:53 +0000319 case FLASH_AM640U: printf ("AM29LV640U (64 Mbit, uniform sector size)\n");
320 break;
wdenkaffae2b2002-08-17 09:36:01 +0000321 default: printf ("Unknown Chip Type\n");
322 break;
323 }
324
325 printf (" Size: %ld KB in %d Sectors\n",
326 info->size >> 10, info->sector_count);
327
328 printf (" Sector Start Addresses:");
329 for (i=0; i<info->sector_count; ++i) {
wdenk33149b82003-05-23 11:38:58 +0000330 /*
331 * Check if whole sector is erased
332 */
wdenkaffae2b2002-08-17 09:36:01 +0000333 if (i != (info->sector_count-1))
wdenk33149b82003-05-23 11:38:58 +0000334 size = info->start[i+1] - info->start[i];
wdenkaffae2b2002-08-17 09:36:01 +0000335 else
wdenk33149b82003-05-23 11:38:58 +0000336 size = info->start[0] + info->size - info->start[i];
337 erased = 1;
338 flash = (volatile unsigned long *)info->start[i];
339 size = size >> 2; /* divide by 4 for longword access */
340 for (k=0; k<size; k++) {
341 if (*flash++ != 0xffffffff) {
342 erased = 0;
wdenkaffae2b2002-08-17 09:36:01 +0000343 break;
344 }
wdenk33149b82003-05-23 11:38:58 +0000345 }
wdenkaffae2b2002-08-17 09:36:01 +0000346 if ((i % 5) == 0)
347 printf ("\n ");
wdenkaffae2b2002-08-17 09:36:01 +0000348 printf (" %08lX%s%s",
349 info->start[i],
350 erased ? " E" : " ",
wdenk33149b82003-05-23 11:38:58 +0000351 info->protect[i] ? "RO " : " ");
wdenkaffae2b2002-08-17 09:36:01 +0000352 }
353 printf ("\n");
wdenkaffae2b2002-08-17 09:36:01 +0000354}
355
356/*-----------------------------------------------------------------------
357 */
358
359
360/*-----------------------------------------------------------------------
wdenk42d1f032003-10-15 23:53:47 +0000361
wdenk7205e402003-09-10 22:30:53 +0000362*/
wdenkaffae2b2002-08-17 09:36:01 +0000363
364/*
365 * The following code cannot be run from FLASH!
366 */
367static ulong flash_get_size (vu_long *addr, flash_info_t *info)
368{
369 short i;
370 FLASH_WORD_SIZE value;
wdenk7205e402003-09-10 22:30:53 +0000371 ulong base;
wdenkaffae2b2002-08-17 09:36:01 +0000372 volatile FLASH_WORD_SIZE *addr2 = (FLASH_WORD_SIZE *)addr;
373
374 /* Write auto select command: read Manufacturer ID */
375 addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
376 addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
377 addr2[ADDR0] = (FLASH_WORD_SIZE)0x00900090;
378
379 value = addr2[0];
380 /* printf("flash_get_size value: %x\n",value); */
381 switch (value) {
382 case (FLASH_WORD_SIZE)AMD_MANUFACT:
383 info->flash_id = FLASH_MAN_AMD;
384 break;
385 case (FLASH_WORD_SIZE)FUJ_MANUFACT:
386 info->flash_id = FLASH_MAN_FUJ;
387 break;
388 case (FLASH_WORD_SIZE)INTEL_MANUFACT:
389 info->flash_id = FLASH_MAN_INTEL;
390 break;
391 case (FLASH_WORD_SIZE)SST_MANUFACT:
392 info->flash_id = FLASH_MAN_SST;
393 break;
394 default:
395 info->flash_id = FLASH_UNKNOWN;
396 info->sector_count = 0;
397 info->size = 0;
398 return (0); /* no or unknown flash */
399 }
400 value = addr2[1]; /* device ID */
Wolfgang Denk53677ef2008-05-20 16:00:29 +0200401 /* printf("Device value %x\n",value); */
wdenkaffae2b2002-08-17 09:36:01 +0000402 switch (value) {
403 case (FLASH_WORD_SIZE)AMD_ID_F040B:
wdenk8bde7f72003-06-27 21:31:46 +0000404 info->flash_id += FLASH_AM040;
wdenkaffae2b2002-08-17 09:36:01 +0000405 info->sector_count = 8;
406 info->size = 0x0080000; /* => 512 ko */
407 break;
408 case (FLASH_WORD_SIZE)AMD_ID_LV400T:
409 info->flash_id += FLASH_AM400T;
410 info->sector_count = 11;
411 info->size = 0x00080000;
412 break; /* => 0.5 MB */
413
414 case (FLASH_WORD_SIZE)AMD_ID_LV400B:
415 info->flash_id += FLASH_AM400B;
416 info->sector_count = 11;
417 info->size = 0x00080000;
418 break; /* => 0.5 MB */
419
420 case (FLASH_WORD_SIZE)AMD_ID_LV800T:
421 info->flash_id += FLASH_AM800T;
422 info->sector_count = 19;
423 info->size = 0x00100000;
424 break; /* => 1 MB */
425
426 case (FLASH_WORD_SIZE)AMD_ID_LV800B:
427 info->flash_id += FLASH_AM800B;
428 info->sector_count = 19;
429 info->size = 0x00100000;
430 break; /* => 1 MB */
431
432 case (FLASH_WORD_SIZE)AMD_ID_LV160T:
433 info->flash_id += FLASH_AM160T;
434 info->sector_count = 35;
435 info->size = 0x00200000;
436 break; /* => 2 MB */
437
438 case (FLASH_WORD_SIZE)AMD_ID_LV160B:
439 info->flash_id += FLASH_AM160B;
440 info->sector_count = 35;
441 info->size = 0x00200000;
442 break; /* => 2 MB */
wdenkaffae2b2002-08-17 09:36:01 +0000443 case (FLASH_WORD_SIZE)AMD_ID_LV320T:
444 info->flash_id += FLASH_AM320T;
445 info->sector_count = 67;
446 info->size = 0x00400000;
447 break; /* => 4 MB */
wdenk7205e402003-09-10 22:30:53 +0000448 case (FLASH_WORD_SIZE)AMD_ID_LV640U:
449 info->flash_id += FLASH_AM640U;
450 info->sector_count = 128;
451 info->size = 0x00800000;
452 break; /* => 8 MB */
453#if 0 /* enable when device IDs are available */
wdenkaffae2b2002-08-17 09:36:01 +0000454
455 case (FLASH_WORD_SIZE)AMD_ID_LV320B:
456 info->flash_id += FLASH_AM320B;
457 info->sector_count = 67;
458 info->size = 0x00400000;
459 break; /* => 4 MB */
460#endif
461 case (FLASH_WORD_SIZE)SST_ID_xF800A:
462 info->flash_id += FLASH_SST800A;
463 info->sector_count = 16;
464 info->size = 0x00100000;
465 break; /* => 1 MB */
466 case (FLASH_WORD_SIZE)INTEL_ID_28F320C3T:
467 info->flash_id += FLASH_INTEL320T;
468 info->sector_count = 71;
469 info->size = 0x00400000;
470 break; /* => 4 MB */
471
472
473 case (FLASH_WORD_SIZE)SST_ID_xF160A:
474 info->flash_id += FLASH_SST160A;
475 info->sector_count = 32;
476 info->size = 0x00200000;
477 break; /* => 2 MB */
478
479 default:
480 info->flash_id = FLASH_UNKNOWN;
481 return (0); /* => no or unknown flash */
482
483 }
wdenk7205e402003-09-10 22:30:53 +0000484 /* base address calculation */
485 base=0-info->size;
wdenkaffae2b2002-08-17 09:36:01 +0000486 /* set up sector start address table */
wdenk33149b82003-05-23 11:38:58 +0000487 if (((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) ||
wdenk7205e402003-09-10 22:30:53 +0000488 (info->flash_id == FLASH_AM040) ||
489 (info->flash_id == FLASH_AM640U)){
wdenkaffae2b2002-08-17 09:36:01 +0000490 for (i = 0; i < info->sector_count; i++)
491 info->start[i] = base + (i * 0x00010000);
wdenk33149b82003-05-23 11:38:58 +0000492 }
493 else {
wdenkaffae2b2002-08-17 09:36:01 +0000494 if (info->flash_id & FLASH_BTYPE) {
wdenk33149b82003-05-23 11:38:58 +0000495 /* set sector offsets for bottom boot block type */
496 info->start[0] = base + 0x00000000;
497 info->start[1] = base + 0x00004000;
498 info->start[2] = base + 0x00006000;
499 info->start[3] = base + 0x00008000;
500 for (i = 4; i < info->sector_count; i++)
501 info->start[i] = base + (i * 0x00010000) - 0x00030000;
502 }
503 else {
wdenkaffae2b2002-08-17 09:36:01 +0000504 /* set sector offsets for top boot block type */
505 i = info->sector_count - 1;
506 if(info->sector_count==71) {
507
508 info->start[i--] = base + info->size - 0x00002000;
509 info->start[i--] = base + info->size - 0x00004000;
510 info->start[i--] = base + info->size - 0x00006000;
511 info->start[i--] = base + info->size - 0x00008000;
512 info->start[i--] = base + info->size - 0x0000A000;
513 info->start[i--] = base + info->size - 0x0000C000;
514 info->start[i--] = base + info->size - 0x0000E000;
515 for (; i >= 0; i--)
516 info->start[i] = base + i * 0x000010000;
517 }
518 else {
519 info->start[i--] = base + info->size - 0x00004000;
520 info->start[i--] = base + info->size - 0x00006000;
521 info->start[i--] = base + info->size - 0x00008000;
522 for (; i >= 0; i--)
523 info->start[i] = base + i * 0x00010000;
524 }
525 }
526 }
527
528 /* check for protected sectors */
529 for (i = 0; i < info->sector_count; i++) {
530 /* read sector protection at sector address, (A7 .. A0) = 0x02 */
531 /* D0 = 1 if protected */
532 addr2 = (volatile FLASH_WORD_SIZE *)(info->start[i]);
wdenk33149b82003-05-23 11:38:58 +0000533 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL)
534 info->protect[i] = 0;
535 else
536 info->protect[i] = addr2[2] & 1;
wdenkaffae2b2002-08-17 09:36:01 +0000537 }
538
539 /*
540 * Prevent writes to uninitialized FLASH.
541 */
542 if (info->flash_id != FLASH_UNKNOWN) {
wdenkaffae2b2002-08-17 09:36:01 +0000543 addr2 = (FLASH_WORD_SIZE *)info->start[0];
544 *addr2 = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
wdenkaffae2b2002-08-17 09:36:01 +0000545 }
546 return (info->size);
547}
548
wdenk33149b82003-05-23 11:38:58 +0000549
wdenkaffae2b2002-08-17 09:36:01 +0000550int wait_for_DQ7(flash_info_t *info, int sect)
551{
552 ulong start, now, last;
553 volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]);
554
555 start = get_timer (0);
wdenk33149b82003-05-23 11:38:58 +0000556 last = start;
557 while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200558 if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
wdenk33149b82003-05-23 11:38:58 +0000559 printf ("Timeout\n");
wdenka2663ea2003-12-07 18:32:37 +0000560 return ERR_TIMOUT;
wdenk33149b82003-05-23 11:38:58 +0000561 }
562 /* show that we're waiting */
563 if ((now - last) > 1000) { /* every second */
564 putc ('.');
565 last = now;
566 }
567 }
wdenka2663ea2003-12-07 18:32:37 +0000568 return ERR_OK;
wdenkaffae2b2002-08-17 09:36:01 +0000569}
570
571int intel_wait_for_DQ7(flash_info_t *info, int sect)
572{
wdenka2663ea2003-12-07 18:32:37 +0000573 ulong start, now, last, status;
wdenkaffae2b2002-08-17 09:36:01 +0000574 volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[sect]);
575
wdenk33149b82003-05-23 11:38:58 +0000576 start = get_timer (0);
577 last = start;
578 while ((addr[0] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200579 if ((now = get_timer(start)) > CONFIG_SYS_FLASH_ERASE_TOUT) {
wdenk33149b82003-05-23 11:38:58 +0000580 printf ("Timeout\n");
wdenka2663ea2003-12-07 18:32:37 +0000581 return ERR_TIMOUT;
wdenk33149b82003-05-23 11:38:58 +0000582 }
583 /* show that we're waiting */
584 if ((now - last) > 1000) { /* every second */
585 putc ('.');
586 last = now;
587 }
588 }
wdenka2663ea2003-12-07 18:32:37 +0000589 status = addr[0] & (FLASH_WORD_SIZE)0x00280028;
590 /* clear status register */
591 addr[0] = (FLASH_WORD_SIZE)0x00500050;
592 /* check status for block erase fail and VPP low */
593 return (status == 0 ? ERR_OK : ERR_NOT_ERASED);
wdenkaffae2b2002-08-17 09:36:01 +0000594}
595
596/*-----------------------------------------------------------------------
597 */
598
599int flash_erase (flash_info_t *info, int s_first, int s_last)
600{
601 volatile FLASH_WORD_SIZE *addr = (FLASH_WORD_SIZE *)(info->start[0]);
602 volatile FLASH_WORD_SIZE *addr2;
603 int flag, prot, sect, l_sect;
wdenka2663ea2003-12-07 18:32:37 +0000604 int i, rcode = 0;
wdenkaffae2b2002-08-17 09:36:01 +0000605
606
607 if ((s_first < 0) || (s_first > s_last)) {
608 if (info->flash_id == FLASH_UNKNOWN) {
609 printf ("- missing\n");
610 } else {
611 printf ("- no sectors to erase\n");
612 }
613 return 1;
614 }
615
616 if (info->flash_id == FLASH_UNKNOWN) {
617 printf ("Can't erase unknown flash type - aborted\n");
618 return 1;
619 }
620
621 prot = 0;
622 for (sect=s_first; sect<=s_last; ++sect) {
623 if (info->protect[sect]) {
624 prot++;
625 }
626 }
627
628 if (prot) {
629 printf ("- Warning: %d protected sectors will not be erased!\n",
630 prot);
631 } else {
632 printf ("\n");
633 }
634
635 l_sect = -1;
636
637 /* Disable interrupts which might cause a timeout here */
638 flag = disable_interrupts();
639
640 /* Start erase on unprotected sectors */
641 for (sect = s_first; sect<=s_last; sect++) {
642 if (info->protect[sect] == 0) { /* not protected */
643 addr2 = (FLASH_WORD_SIZE *)(info->start[sect]);
644 /* printf("Erasing sector %p\n", addr2); */ /* CLH */
wdenk33149b82003-05-23 11:38:58 +0000645 if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_SST) {
wdenkaffae2b2002-08-17 09:36:01 +0000646 addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
647 addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
648 addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
649 addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
650 addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
651 addr2[0] = (FLASH_WORD_SIZE)0x00500050; /* block erase */
652 for (i=0; i<50; i++)
653 udelay(1000); /* wait 1 ms */
wdenka2663ea2003-12-07 18:32:37 +0000654 rcode |= wait_for_DQ7(info, sect);
wdenk33149b82003-05-23 11:38:58 +0000655 }
656 else {
wdenk8bde7f72003-06-27 21:31:46 +0000657 if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
wdenkaffae2b2002-08-17 09:36:01 +0000658 addr2[0] = (FLASH_WORD_SIZE)0x00600060; /* unlock sector */
659 addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* sector erase */
wdenk33149b82003-05-23 11:38:58 +0000660 intel_wait_for_DQ7(info, sect);
wdenkaffae2b2002-08-17 09:36:01 +0000661 addr2[0] = (FLASH_WORD_SIZE)0x00200020; /* sector erase */
662 addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* sector erase */
wdenka2663ea2003-12-07 18:32:37 +0000663 rcode |= intel_wait_for_DQ7(info, sect);
wdenkaffae2b2002-08-17 09:36:01 +0000664 }
665 else {
666 addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
667 addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
668 addr[ADDR0] = (FLASH_WORD_SIZE)0x00800080;
669 addr[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
670 addr[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
671 addr2[0] = (FLASH_WORD_SIZE)0x00300030; /* sector erase */
wdenka2663ea2003-12-07 18:32:37 +0000672 rcode |= wait_for_DQ7(info, sect);
wdenk33149b82003-05-23 11:38:58 +0000673 }
674 }
675 l_sect = sect;
676 /*
677 * Wait for each sector to complete, it's more
678 * reliable. According to AMD Spec, you must
679 * issue all erase commands within a specified
680 * timeout. This has been seen to fail, especially
681 * if printf()s are included (for debug)!!
682 */
683 /* wait_for_DQ7(info, sect); */
wdenkaffae2b2002-08-17 09:36:01 +0000684 }
685 }
686
687 /* re-enable interrupts if necessary */
688 if (flag)
689 enable_interrupts();
690
691 /* wait at least 80us - let's wait 1 ms */
692 udelay (1000);
693
694#if 0
695 /*
696 * We wait for the last triggered sector
697 */
698 if (l_sect < 0)
699 goto DONE;
700 wait_for_DQ7(info, l_sect);
701
702DONE:
703#endif
704 /* reset to read mode */
705 addr = (FLASH_WORD_SIZE *)info->start[0];
706 addr[0] = (FLASH_WORD_SIZE)0x00F000F0; /* reset bank */
707
wdenka2663ea2003-12-07 18:32:37 +0000708 if (!rcode)
709 printf (" done\n");
710
711 return rcode;
wdenkaffae2b2002-08-17 09:36:01 +0000712}
713
wdenk33149b82003-05-23 11:38:58 +0000714
wdenkaffae2b2002-08-17 09:36:01 +0000715void unlock_intel_sectors(flash_info_t *info,ulong addr,ulong cnt)
716{
717 int i;
718 volatile FLASH_WORD_SIZE *addr2;
719 long c;
720 c= (long)cnt;
721 for(i=info->sector_count-1;i>0;i--)
722 {
723 if(addr>=info->start[i])
724 break;
725 }
726 do {
727 addr2 = (FLASH_WORD_SIZE *)(info->start[i]);
728 addr2[0] = (FLASH_WORD_SIZE)0x00600060; /* unlock sector setup */
729 addr2[0] = (FLASH_WORD_SIZE)0x00D000D0; /* unlock sector */
730 intel_wait_for_DQ7(info, i);
731 i++;
732 c-=(info->start[i]-info->start[i-1]);
733 }while(c>0);
wdenkaffae2b2002-08-17 09:36:01 +0000734}
735
736
737/*-----------------------------------------------------------------------
738 * Copy memory to flash, returns:
739 * 0 - OK
740 * 1 - write timeout
741 * 2 - Flash not erased
742 */
743
744int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
745{
746 ulong cp, wp, data;
747 int i, l, rc;
748
749 if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
750 unlock_intel_sectors(info,addr,cnt);
751 }
752 wp = (addr & ~3); /* get lower word aligned address */
753 /*
754 * handle unaligned start bytes
755 */
756 if ((l = addr - wp) != 0) {
757 data = 0;
758 for (i=0, cp=wp; i<l; ++i, ++cp) {
759 data = (data << 8) | (*(uchar *)cp);
760 }
761 for (; i<4 && cnt>0; ++i) {
762 data = (data << 8) | *src++;
763 --cnt;
764 ++cp;
765 }
766 for (; cnt==0 && i<4; ++i, ++cp) {
767 data = (data << 8) | (*(uchar *)cp);
768 }
769
770 if ((rc = write_word(info, wp, data)) != 0) {
771 return (rc);
772 }
773 wp += 4;
774 }
775
776 /*
777 * handle word aligned part
778 */
779 while (cnt >= 4) {
780 data = 0;
781 for (i=0; i<4; ++i) {
782 data = (data << 8) | *src++;
783 }
784 if ((rc = write_word(info, wp, data)) != 0) {
785 return (rc);
786 }
787 wp += 4;
788 if((wp % 0x10000)==0)
789 printf("."); /* show Progress */
790 cnt -= 4;
791 }
792
793 if (cnt == 0) {
794 return (0);
795 }
796
797 /*
798 * handle unaligned tail bytes
799 */
800 data = 0;
801 for (i=0, cp=wp; i<4 && cnt>0; ++i, ++cp) {
802 data = (data << 8) | *src++;
803 --cnt;
804 }
805 for (; i<4; ++i, ++cp) {
806 data = (data << 8) | (*(uchar *)cp);
807 }
808 rc=write_word(info, wp, data);
809 return rc;
810}
811
812/*-----------------------------------------------------------------------
813 * Write a word to Flash, returns:
814 * 0 - OK
815 * 1 - write timeout
816 * 2 - Flash not erased
817 */
818static FLASH_WORD_SIZE *read_val = (FLASH_WORD_SIZE *)0x200000;
819
820static int write_word (flash_info_t *info, ulong dest, ulong data)
821{
Wolfgang Denkd39041f2009-07-19 01:15:52 +0200822 volatile FLASH_WORD_SIZE *addr2 = (volatile FLASH_WORD_SIZE *)(info->start[0]);
823 volatile FLASH_WORD_SIZE *dest2 = (volatile FLASH_WORD_SIZE *)dest;
824 volatile FLASH_WORD_SIZE *data2;
wdenkaffae2b2002-08-17 09:36:01 +0000825 ulong start;
Wolfgang Denkd39041f2009-07-19 01:15:52 +0200826 ulong *data_p;
wdenkaffae2b2002-08-17 09:36:01 +0000827 int flag;
828 int i;
829
Wolfgang Denkd39041f2009-07-19 01:15:52 +0200830 data_p = &data;
831 data2 = (volatile FLASH_WORD_SIZE *)data_p;
832
wdenkaffae2b2002-08-17 09:36:01 +0000833 /* Check if Flash is (sufficiently) erased */
834 if ((*((volatile FLASH_WORD_SIZE *)dest) &
835 (FLASH_WORD_SIZE)data) != (FLASH_WORD_SIZE)data) {
836 return (2);
837 }
838 /* Disable interrupts which might cause a timeout here */
839 flag = disable_interrupts();
840 for (i=0; i<4/sizeof(FLASH_WORD_SIZE); i++)
841 {
842 if((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL){
843 /* intel style writting */
844 dest2[i] = (FLASH_WORD_SIZE)0x00500050;
845 dest2[i] = (FLASH_WORD_SIZE)0x00400040;
846 *read_val++ = data2[i];
847 dest2[i] = data2[i];
848 if (flag)
849 enable_interrupts();
850 /* data polling for D7 */
851 start = get_timer (0);
852 udelay(10);
853 while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) != (FLASH_WORD_SIZE)0x00800080)
854 {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200855 if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT)
wdenkaffae2b2002-08-17 09:36:01 +0000856 return (1);
857 }
858 dest2[i] = (FLASH_WORD_SIZE)0x00FF00FF; /* return to read mode */
859 udelay(10);
860 dest2[i] = (FLASH_WORD_SIZE)0x00FF00FF; /* return to read mode */
861 if(dest2[i]!=data2[i])
862 printf("Error at %p 0x%04X != 0x%04X\n",&dest2[i],dest2[i],data2[i]);
863 }
864 else {
865 addr2[ADDR0] = (FLASH_WORD_SIZE)0x00AA00AA;
866 addr2[ADDR1] = (FLASH_WORD_SIZE)0x00550055;
867 addr2[ADDR0] = (FLASH_WORD_SIZE)0x00A000A0;
868 dest2[i] = data2[i];
869 /* re-enable interrupts if necessary */
870 if (flag)
871 enable_interrupts();
872 /* data polling for D7 */
873 start = get_timer (0);
874 while ((dest2[i] & (FLASH_WORD_SIZE)0x00800080) !=
875 (data2[i] & (FLASH_WORD_SIZE)0x00800080)) {
Jean-Christophe PLAGNIOL-VILLARD6d0f6bc2008-10-16 15:01:15 +0200876 if (get_timer(start) > CONFIG_SYS_FLASH_WRITE_TOUT) {
wdenk8bde7f72003-06-27 21:31:46 +0000877 return (1);
wdenkaffae2b2002-08-17 09:36:01 +0000878 }
879 }
880 }
881 }
882 return (0);
883}
884
885/*-----------------------------------------------------------------------
886 */