[U-Boot-Users] Altera Stratix II support

[eran liberty]

This patch adds a safety check to the cfi flash.
If the config file defined a flash smaller (maybe intentionally) then
the physical one. the cfi will read the actual size from the eprom and
will try to initialize a buffer of the wrong size... which will cause
a memory over run and unpredicted behaviour.

================ sof ===================
diff -x .svn -Nuar u-boot.git/drivers/cfi_flash.c
u-boot-exsw6000/drivers/cfi_flash.c
--- u-boot.git/drivers/cfi_flash.c 2007-05-28 02:11:11.000000000 +0300
+++ u-boot-exsw6000/drivers/cfi_flash.c 2007-06-03 22:13:42.000000000 +0300
@@ -1281,7 +1281,7 @@
erase_region_count = (tmp & 0xffff) + 1;
debug ("erase_region_count = %d erase_region_size = %d\n",
erase_region_count, erase_region_size);
- for (j = 0; j < erase_region_count; j++) {
+ for (j = 0; j < erase_region_count && sect_cnt < CFG_MAX_FLASH_SECT; j++) {
info->start[sect_cnt] = sector;
sector += (erase_region_size * size_ratio);

@@ -1323,6 +1323,9 @@
}

flash_write_cmd (info, 0, 0, info->cmd_reset);
+#if defined(CONFIG_FORCE_FLASH_BANK_SIZE)
+ info->size = CONFIG_FORCE_FLASH_BANK_SIZE;
+#endif
return (info->size);
}

================ eof ===================