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redboot.c - adds implicit creation of boardconfig partition 

SVN-Revision: 12340
owl
John Crispin 2008-08-19 18:07:57 +00:00
parent 91b443598a
commit 17e3eb3ce3
1 changed files with 62 additions and 0 deletions
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62
target/linux/generic-2.6/patches-2.6.26/071-redboot_boardconfig.patch Normal file
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@ -0,0 +1,62 @@
Index: linux-2.6.26.2/drivers/mtd/redboot.c
===================================================================
--- linux-2.6.26.2.orig/drivers/mtd/redboot.c 2008-08-19 19:32:17.000000000 +0200
+++ linux-2.6.26.2/drivers/mtd/redboot.c 2008-08-19 19:47:34.000000000 +0200
@@ -13,6 +13,8 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
+#define BOARD_CONFIG_PART "boardconfig"
+
struct fis_image_desc {
unsigned char name[16]; // Null terminated name
uint32_t flash_base; // Address within FLASH of image
@@ -43,6 +45,7 @@
struct mtd_partition **pparts,
unsigned long fis_origin)
{
+ unsigned long max_offset = 0;
int nrparts = 0;
struct fis_image_desc *buf;
struct mtd_partition *parts;
@@ -217,14 +220,14 @@
}
}
#endif
- parts = kzalloc(sizeof(*parts)*nrparts + nulllen + namelen, GFP_KERNEL);
+ parts = kzalloc(sizeof(*parts) * (nrparts + 1) + nulllen + namelen + sizeof(BOARD_CONFIG_PART), GFP_KERNEL);
if (!parts) {
ret = -ENOMEM;
goto out;
}
- nullname = (char *)&parts[nrparts];
+ nullname = (char *)&parts[nrparts + 1];
#ifdef CONFIG_MTD_REDBOOT_PARTS_UNALLOCATED
if (nulllen > 0) {
strcpy(nullname, nullstring);
@@ -243,6 +246,8 @@
}
#endif
for ( ; i<nrparts; i++) {
+ if(max_offset < buf[i].flash_base + buf[i].size)
+ max_offset = buf[i].flash_base + buf[i].size;
parts[i].size = fl->img->size;
parts[i].offset = fl->img->flash_base;
parts[i].name = names;
@@ -276,6 +281,14 @@
fl = fl->next;
kfree(tmp_fl);
}
+ if(master->size - max_offset >= master->erasesize)
+ {
+ parts[nrparts].size = master->size - max_offset;
+ parts[nrparts].offset = max_offset;
+ parts[nrparts].name = names;
+ strcpy(names, BOARD_CONFIG_PART);
+ nrparts++;
+ }
ret = nrparts;
*pparts = parts;
out: