summaryrefslogtreecommitdiff
path: root/target/linux/brcm63xx-2.6/patches/040-bcm963xx_flashmap.patch
blob: 4d172046cd2eb4be62ae3783c88e694514d4e4fe (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
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
diff -urN linux-2.6.19/drivers/mtd/maps/Kconfig linux-2.6.19.new/drivers/mtd/maps/Kconfig
--- linux-2.6.19/drivers/mtd/maps/Kconfig	2006-11-29 22:57:37.000000000 +0100
+++ linux-2.6.19.new/drivers/mtd/maps/Kconfig	2006-12-18 17:21:07.000000000 +0100
@@ -224,6 +224,13 @@
 	  Flash memory access on 4G Systems MTX-1 Board. If you have one of
 	  these boards and would like to use the flash chips on it, say 'Y'.
 
+config MTD_BCM963XX
+        tristate "BCM963xx Flash device"
+        depends on MIPS && BCM963XX
+        help
+	  Flash memory access on BCM963xx boards. Currently only works with
+	  RedBoot, CFE support coming soon.
+
 config MTD_DILNETPC
 	tristate "CFI Flash device mapped on DIL/Net PC"
 	depends on X86 && MTD_CONCAT && MTD_PARTITIONS && MTD_CFI_INTELEXT
diff -urN linux-2.6.19/drivers/mtd/maps/Makefile linux-2.6.19.new/drivers/mtd/maps/Makefile
--- linux-2.6.19/drivers/mtd/maps/Makefile	2006-11-29 22:57:37.000000000 +0100
+++ linux-2.6.19.new/drivers/mtd/maps/Makefile	2006-12-18 17:21:07.000000000 +0100
@@ -70,3 +70,4 @@
 obj-$(CONFIG_MTD_OMAP_NOR)	+= omap_nor.o
 obj-$(CONFIG_MTD_MTX1)		+= mtx-1_flash.o
 obj-$(CONFIG_MTD_TQM834x)	+= tqm834x.o
+obj-$(CONFIG_MTD_BCM963XX)      += bcm963xx-flash.o
diff -urN linux-2.6.19/drivers/mtd/maps/Makefile.orig linux-2.6.19.new/drivers/mtd/maps/Makefile.orig
--- linux-2.6.19/drivers/mtd/maps/Makefile.orig	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.19.new/drivers/mtd/maps/Makefile.orig	2006-11-29 22:57:37.000000000 +0100
@@ -0,0 +1,72 @@
+#
+# linux/drivers/maps/Makefile
+#
+# $Id: Makefile.common,v 1.34 2005/11/07 11:14:26 gleixner Exp $
+
+ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y)
+obj-$(CONFIG_MTD)		+= map_funcs.o
+endif
+
+# Chip mappings
+obj-$(CONFIG_MTD_CDB89712)	+= cdb89712.o
+obj-$(CONFIG_MTD_ARM_INTEGRATOR)+= integrator-flash.o
+obj-$(CONFIG_MTD_BAST)		+= bast-flash.o
+obj-$(CONFIG_MTD_CFI_FLAGADM)	+= cfi_flagadm.o
+obj-$(CONFIG_MTD_CSTM_MIPS_IXX)	+= cstm_mips_ixx.o
+obj-$(CONFIG_MTD_DC21285)	+= dc21285.o
+obj-$(CONFIG_MTD_DILNETPC)	+= dilnetpc.o
+obj-$(CONFIG_MTD_L440GX)	+= l440gx.o
+obj-$(CONFIG_MTD_AMD76XROM)	+= amd76xrom.o
+obj-$(CONFIG_MTD_ICHXROM)	+= ichxrom.o
+obj-$(CONFIG_MTD_TSUNAMI)	+= tsunami_flash.o
+obj-$(CONFIG_MTD_LUBBOCK)	+= lubbock-flash.o
+obj-$(CONFIG_MTD_MAINSTONE)	+= mainstone-flash.o
+obj-$(CONFIG_MTD_MBX860)	+= mbx860.o
+obj-$(CONFIG_MTD_CEIVA)		+= ceiva.o
+obj-$(CONFIG_MTD_OCTAGON)	+= octagon-5066.o
+obj-$(CONFIG_MTD_PHYSMAP)	+= physmap.o
+obj-$(CONFIG_MTD_PNC2000)	+= pnc2000.o
+obj-$(CONFIG_MTD_PCMCIA)	+= pcmciamtd.o
+obj-$(CONFIG_MTD_RPXLITE)	+= rpxlite.o
+obj-$(CONFIG_MTD_TQM8XXL)	+= tqm8xxl.o
+obj-$(CONFIG_MTD_SA1100)	+= sa1100-flash.o
+obj-$(CONFIG_MTD_IPAQ)		+= ipaq-flash.o
+obj-$(CONFIG_MTD_SBC_GXX)	+= sbc_gxx.o
+obj-$(CONFIG_MTD_SC520CDP)	+= sc520cdp.o
+obj-$(CONFIG_MTD_NETSC520)	+= netsc520.o
+obj-$(CONFIG_MTD_TS5500)	+= ts5500_flash.o
+obj-$(CONFIG_MTD_SUN_UFLASH)	+= sun_uflash.o
+obj-$(CONFIG_MTD_VMAX)		+= vmax301.o
+obj-$(CONFIG_MTD_SCx200_DOCFLASH)+= scx200_docflash.o
+obj-$(CONFIG_MTD_DBOX2)		+= dbox2-flash.o
+obj-$(CONFIG_MTD_OCELOT)	+= ocelot.o
+obj-$(CONFIG_MTD_SOLUTIONENGINE)+= solutionengine.o
+obj-$(CONFIG_MTD_PCI)		+= pci.o
+obj-$(CONFIG_MTD_ALCHEMY)       += alchemy-flash.o
+obj-$(CONFIG_MTD_LASAT)		+= lasat.o
+obj-$(CONFIG_MTD_AUTCPU12)	+= autcpu12-nvram.o
+obj-$(CONFIG_MTD_EDB7312)	+= edb7312.o
+obj-$(CONFIG_MTD_IMPA7)		+= impa7.o
+obj-$(CONFIG_MTD_FORTUNET)	+= fortunet.o
+obj-$(CONFIG_MTD_REDWOOD)	+= redwood.o
+obj-$(CONFIG_MTD_UCLINUX)	+= uclinux.o
+obj-$(CONFIG_MTD_NETtel)	+= nettel.o
+obj-$(CONFIG_MTD_SCB2_FLASH)	+= scb2_flash.o
+obj-$(CONFIG_MTD_EBONY)		+= ebony.o
+obj-$(CONFIG_MTD_OCOTEA)	+= ocotea.o
+obj-$(CONFIG_MTD_BEECH)		+= beech-mtd.o
+obj-$(CONFIG_MTD_ARCTIC)	+= arctic-mtd.o
+obj-$(CONFIG_MTD_WALNUT)        += walnut.o
+obj-$(CONFIG_MTD_H720X)		+= h720x-flash.o
+obj-$(CONFIG_MTD_SBC8240)	+= sbc8240.o
+obj-$(CONFIG_MTD_NOR_TOTO)	+= omap-toto-flash.o
+obj-$(CONFIG_MTD_MPC1211)	+= mpc1211.o
+obj-$(CONFIG_MTD_IXP4XX)	+= ixp4xx.o
+obj-$(CONFIG_MTD_IXP2000)	+= ixp2000.o
+obj-$(CONFIG_MTD_WRSBC8260)	+= wr_sbc82xx_flash.o
+obj-$(CONFIG_MTD_DMV182)	+= dmv182.o
+obj-$(CONFIG_MTD_SHARP_SL)	+= sharpsl-flash.o
+obj-$(CONFIG_MTD_PLATRAM)	+= plat-ram.o
+obj-$(CONFIG_MTD_OMAP_NOR)	+= omap_nor.o
+obj-$(CONFIG_MTD_MTX1)		+= mtx-1_flash.o
+obj-$(CONFIG_MTD_TQM834x)	+= tqm834x.o
diff -urN linux-2.6.19/drivers/mtd/maps/bcm963xx-flash.c linux-2.6.19.new/drivers/mtd/maps/bcm963xx-flash.c
--- linux-2.6.19/drivers/mtd/maps/bcm963xx-flash.c	1970-01-01 01:00:00.000000000 +0100
+++ linux-2.6.19.new/drivers/mtd/maps/bcm963xx-flash.c	2006-12-18 17:21:07.000000000 +0100
@@ -0,0 +1,276 @@
+/*
+ * $Id$
+ * Copyright (C) 2006  Florian Fainelli
+ * Copyright (C) $Date$  $Author$
+ *
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+/* This is the BCM963xx flash map driver, in its actual state it only supports BCM96348 devices
+ * this driver is able to manage both bootloader we found on these boards : CFE and RedBoot
+ *
+ * RedBoot :
+ *  - this bootloader allows us to parse partitions and therefore deduce the MTD partition table
+ *
+ * CFE :
+ *   - we have to use a "physically mapped flash" defined bellow
+ *
+ */
+
+#include <asm/io.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/vmalloc.h>
+#include <board.h>
+
+#define WINDOW_ADDR 0x1FC00000                 /* Real address of the flash */
+#define WINDOW_SIZE 0x400000           /* Size of flash */
+#define BUSWIDTH 2                     /* Buswidth */
+#define EXTENDED_SIZE 0xBFC00000       /* Extended flash address */
+#define IMAGE_LEN 10                   /* Length of Length Field */
+#define ADDRESS_LEN 12                 /* Length of Address field */
+#define ROUNDUP(x, y) ((((x)+((y)-1))/(y))*(y))
+
+extern int boot_loader_type;           /* For RedBoot / CFE detection */
+extern int parse_redboot_partitions(struct mtd_info *master, struct mtd_partition **pparts, unsigned long fis_origin);
+static struct mtd_partition *parsed_parts;
+
+static void __exit bcm963xx_mtd_cleanup(void);
+
+static struct mtd_info *bcm963xx_mtd_info;
+
+static struct map_info bcm963xx_map = {
+       .name = "bcm963xx",
+       .size = WINDOW_SIZE,
+       .bankwidth = BUSWIDTH,
+       .phys = WINDOW_ADDR,
+};
+
+
+int parse_cfe_partitions( struct mtd_info *master, struct mtd_partition **pparts)
+{
+       int nrparts = 2, curpart = 0; // CFE and NVRAM always present.
+       struct bcm963xx_cfe_map {
+       unsigned char tagVersion[4];                            // Version of the image tag
+       unsigned char sig_1[20];                                // Company Line 1
+       unsigned char sig_2[14];                                // Company Line 2
+       unsigned char chipid[6];                                        // Chip this image is for
+       unsigned char boardid[16];                              // Board name
+       unsigned char bigEndian[2];                             // Map endianness -- 1 BE 0 LE
+       unsigned char totalLength[IMAGE_LEN];           //Total length of image
+       unsigned char cfeAddress[ADDRESS_LEN];  // Address in memory of CFE
+       unsigned char cfeLength[IMAGE_LEN];             // Size of CFE
+       unsigned char rootAddress[ADDRESS_LEN];         // Address in memory of rootfs
+       unsigned char rootLength[IMAGE_LEN];            // Size of rootfs
+       unsigned char kernelAddress[ADDRESS_LEN];       // Address in memory of kernel
+       unsigned char kernelLength[IMAGE_LEN];  // Size of kernel
+       unsigned char dualImage[2];                             // Unused at present
+       unsigned char inactiveFlag[2];                  // Unused at present
+       unsigned char reserved1[74];                            // Reserved area not in use
+       unsigned char imageCRC[4];                              // CRC32 of images
+       unsigned char reserved2[16];                            // Unused at present
+       unsigned char headerCRC[4];                             // CRC32 of header excluding tagVersion
+       unsigned char reserved3[16];                            // Unused at present
+       } *buf;
+       struct mtd_partition *parts;
+       int ret;
+       size_t retlen;
+       unsigned int rootfsaddr, kerneladdr, spareaddr;
+       unsigned int rootfslen, kernellen, sparelen, totallen;
+       int namelen = 0;
+       int i;
+       // Allocate memory for buffer
+       buf = vmalloc(sizeof(struct bcm963xx_cfe_map));
+
+       if (!buf)
+               return -ENOMEM;
+
+       // Get the tag
+       ret = master->read(master,master->erasesize,sizeof(struct bcm963xx_cfe_map), &retlen, (void *)buf);
+       if (retlen != sizeof(struct bcm963xx_cfe_map)){
+               vfree(buf);
+               return -EIO;
+       };
+       printk("bcm963xx: CFE boot tag found with version %s and board type %s.\n",buf->tagVersion,buf->boardid);
+       // Get the values and calculate
+       sscanf(buf->rootAddress,"%u", &rootfsaddr);
+       rootfsaddr = rootfsaddr - EXTENDED_SIZE;
+       sscanf(buf->rootLength, "%u", &rootfslen);
+       sscanf(buf->kernelAddress, "%u", &kerneladdr);
+       kerneladdr = kerneladdr - EXTENDED_SIZE;
+       sscanf(buf->kernelLength, "%u", &kernellen);
+       sscanf(buf->totalLength, "%u", &totallen);
+       spareaddr = ROUNDUP(totallen,master->erasesize) + master->erasesize;
+       sparelen = master->size - spareaddr - master->erasesize;
+       // Determine number of partitions
+       namelen = 8;
+       if (rootfslen > 0){
+               nrparts++;
+               namelen =+ 6;
+       };
+       if (kernellen > 0){
+               nrparts++;
+               namelen =+ 6;
+       };
+       if (sparelen > 0){
+               nrparts++;
+               namelen =+ 6;
+       };
+       // Ask kernel for more memory.
+       parts = kmalloc(sizeof(*parts)*nrparts+10*nrparts, GFP_KERNEL);
+       if (!parts){
+               vfree(buf);
+               return -ENOMEM;
+       };
+       memset(parts,0,sizeof(*parts)*nrparts+10*nrparts);
+       // Start building partition list
+       parts[curpart].name = "CFE";
+       parts[curpart].offset = 0;
+       parts[curpart].size = master->erasesize;
+       curpart++;
+       if (kernellen > 0){
+               parts[curpart].name = "Kernel";
+               parts[curpart].offset = kerneladdr;
+               parts[curpart].size = kernellen;
+               curpart++;
+       };
+       if (rootfslen > 0){
+               parts[curpart].name = "Rootfs";
+               parts[curpart].offset = rootfsaddr;
+               parts[curpart].size = rootfslen;
+               curpart++;
+       };
+       if (sparelen > 0){
+               parts[curpart].name = "OpenWrt";
+               parts[curpart].offset = spareaddr;
+               parts[curpart].size = sparelen;
+               curpart++;
+       };
+       parts[curpart].name = "NVRAM";
+       parts[curpart].offset = master->size - master->erasesize;
+       parts[curpart].size = master->erasesize;
+       for (i = 0; i < nrparts; i++) {
+          printk("bcm963xx: Partition %d is %s offset %x and length %x\n", i, parts[i].name, parts[i].offset, parts[i].size);
+       }
+       *pparts = parts;
+       vfree(buf);
+       return nrparts;
+};
+
+static struct mtd_partition bcm963xx_parts[] = {
+        { name: "bootloader",  size: 0,        offset: 0,      mask_flags: MTD_WRITEABLE },
+        { name: "rootfs",              size: 0,        offset: 0},
+        { name: "jffs2",        size: 5 * 0x10000,      offset: 57*0x10000}
+};
+
+static int bcm963xx_parts_size = sizeof(bcm963xx_parts) / sizeof(bcm963xx_parts[0]);
+
+static int bcm963xx_detect_cfe(struct mtd_info *master)
+{
+       int idoffset = 0x4e0;
+       static char idstring[8] = "CFE1CFE1";
+       char buf[8];
+       int ret;
+       size_t retlen;
+
+       ret = master->read(master, idoffset, 8, &retlen, (void *)buf);
+       printk("bcm963xx: Read Signature value of %s\n", buf);
+       return strcmp(idstring,buf);
+}
+
+static int __init bcm963xx_mtd_init(void)
+{
+       printk("bcm963xx: 0x%08x at 0x%08x\n", WINDOW_SIZE, WINDOW_ADDR);
+       bcm963xx_map.virt = ioremap(WINDOW_ADDR, WINDOW_SIZE);
+
+       if (!bcm963xx_map.virt) {
+               printk("bcm963xx: Failed to ioremap\n");
+               return -EIO;
+       }
+
+       simple_map_init(&bcm963xx_map);
+
+       bcm963xx_mtd_info = do_map_probe("cfi_probe", &bcm963xx_map);
+
+       if (bcm963xx_mtd_info) {
+               bcm963xx_mtd_info->owner = THIS_MODULE;
+
+               //if (boot_loader_type == BOOT_CFE)
+               if (bcm963xx_detect_cfe(bcm963xx_mtd_info) == 0)
+               {
+                       int parsed_nr_parts = 0;
+                       char * part_type;
+                       printk("bcm963xx: CFE bootloader detected\n");
+                       //add_mtd_device(bcm963xx_mtd_info);
+                       //add_mtd_partitions(bcm963xx_mtd_info, bcm963xx_parts, bcm963xx_parts_size);
+                       if (parsed_nr_parts == 0) {
+                               int ret = parse_cfe_partitions(bcm963xx_mtd_info, &parsed_parts);
+                               if (ret > 0) {
+                                       part_type = "CFE";
+                                       parsed_nr_parts = ret;
+                               }
+                       }
+                       add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts);
+                       return 0;
+               }
+               else
+               {
+                       int parsed_nr_parts = 0;
+                       char * part_type;
+
+                       if (bcm963xx_mtd_info->size > 0x00400000) {
+                               printk("Support for extended flash memory size : 0x%08X ; ONLY 64MBIT SUPPORT\n", bcm963xx_mtd_info->size);
+                               bcm963xx_map.virt = (unsigned long)(EXTENDED_SIZE);
+                       }
+
+#ifdef CONFIG_MTD_REDBOOT_PARTS
+                       if (parsed_nr_parts == 0) {
+                               int ret = parse_redboot_partitions(bcm963xx_mtd_info, &parsed_parts, 0);
+                               if (ret > 0) {
+                                       part_type = "RedBoot";
+                                       parsed_nr_parts = ret;
+                               }
+                       }
+#endif
+                       add_mtd_partitions(bcm963xx_mtd_info, parsed_parts, parsed_nr_parts);
+
+                       return 0;
+               }
+       }
+       iounmap(bcm963xx_map.virt);
+       return -ENXIO;
+}
+
+static void __exit bcm963xx_mtd_cleanup(void)
+{
+       if (bcm963xx_mtd_info) {
+               del_mtd_partitions(bcm963xx_mtd_info);
+               map_destroy(bcm963xx_mtd_info);
+       }
+
+       if (bcm963xx_map.virt) {
+               iounmap(bcm963xx_map.virt);
+               bcm963xx_map.virt = 0;
+       }
+}
+
+module_init(bcm963xx_mtd_init);
+module_exit(bcm963xx_mtd_cleanup);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
diff -urN linux-2.6.19/drivers/mtd/redboot.c linux-2.6.19.new/drivers/mtd/redboot.c
--- linux-2.6.19/drivers/mtd/redboot.c	2006-12-18 17:09:14.000000000 +0100
+++ linux-2.6.19.new/drivers/mtd/redboot.c	2006-12-18 17:14:26.000000000 +0100
@@ -39,7 +39,7 @@
 	return 1;
 }
 
-static int parse_redboot_partitions(struct mtd_info *master,
+int parse_redboot_partitions(struct mtd_info *master,
                              struct mtd_partition **pparts,
                              unsigned long fis_origin)
 {
@@ -132,6 +132,14 @@
 		goto out;
 	}
 
+	if (!fis_origin) {
+		for (i = 0; i < numslots; i++) {
+			if (!strncmp(buf[i].name, "RedBoot", 8)) {
+				fis_origin = (buf[i].flash_base & (master->size << 1) - 1);
+			}
+		}
+	}
+
 	for (i = 0; i < numslots; i++) {
 		struct fis_list *new_fl, **prev;
 
@@ -154,9 +162,8 @@
 		new_fl->img = &buf[i];
                 if (fis_origin) {
                         buf[i].flash_base -= fis_origin;
-                } else {
-                        buf[i].flash_base &= master->size-1;
                 }
+		buf[i].flash_base &= (master->size << 1) - 1;
 
 		/* I'm sure the JFFS2 code has done me permanent damage.
 		 * I now think the following is _normal_