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authorAnatolij Gustschin <agust@denx.de>2010-11-28 02:13:33 +0100
committerWolfgang Denk <wd@denx.de>2010-11-28 19:41:11 +0100
commit34bbb8fb467a00aebc3e631e71888c5b00875a68 (patch)
treef91340d23b20439244e0c87420dc0fe6a8fcb082
parentb485faa602f4d35af01beaa729525c664e75d7ba (diff)
downloadu-boot-linaro-natty-34bbb8fb467a00aebc3e631e71888c5b00875a68.tar.gz
cfi_flash: fix bug introduced while recent change to flash_get_size()
commit ec50a8e389863ac35bfd9d9a2e8b30187318e59e "cfi_flash: handle 'chip size exceeds address window' situation" added 3rd argument to flash_get_size() but didn't fix all the function calls from the board specific code. Many boards have their own flash_get_size() definitions in the board code and use them there, but some boards (e.g. tqm834x, tqm85xx, pdm360ng) use flash_get_size() from the cfi_flash.c driver. The bug shows up if the value of the "max_size" argument (which is not defined when calling the function with two arguments) happens to be less than "info->size". In this case on the affected boards we end up with a bank of reduced size and in the worst case might even be not able to update U-Boot or to boot the kernel from flash: => fli Bank # 1: CFI conformant FLASH (32 x 16) Size: 0 kB in 1 Sectors AMD Standard command set, Manufacturer ID: 0x01, Device ID: 0x227E Erase timeout: 4096 ms, write timeout: 1 ms Buffer write timeout: 3 ms, buffer size: 64 bytes Sector Start Addresses: F0000000 RO Bank # 2: CFI conformant FLASH (32 x 16) Size: 128 MB in 512 Sectors AMD Standard command set, Manufacturer ID: 0x01, Device ID: 0x227E Erase timeout: 4096 ms, write timeout: 1 ms Buffer write timeout: 3 ms, buffer size: 64 bytes Sector Start Addresses: F8000000 F8040000 F8080000 F80C0000 F8100000 F8140000 F8180000 F81C0000 F8200000 F8240000 ... E.g., updating U-Boot is not possible now: => protect off ${u-boot_addr} +${u-boot_size} Error: end address (0xf007ffff) not in flash! Bad address format => era ${u-boot_addr} +${u-boot_size} Error: end address (0xf007ffff) not in flash! Bad address format This patch removes the 3rd argument of flash_get_size() again and sets "max_size" in the function itself instead of passing it as a function argument. Signed-off-by: Anatolij Gustschin <agust@denx.de>
-rw-r--r--drivers/mtd/cfi_flash.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/mtd/cfi_flash.c b/drivers/mtd/cfi_flash.c
index c92c7a7a4..39c235ebc 100644
--- a/drivers/mtd/cfi_flash.c
+++ b/drivers/mtd/cfi_flash.c
@@ -1837,7 +1837,7 @@ static void flash_fixup_stm(flash_info_t *info, struct cfi_qry *qry)
* The following code cannot be run from FLASH!
*
*/
-ulong flash_get_size (phys_addr_t base, int banknum, unsigned long max_size)
+ulong flash_get_size (phys_addr_t base, int banknum)
{
flash_info_t *info = &flash_info[banknum];
int i, j;
@@ -1849,6 +1849,7 @@ ulong flash_get_size (phys_addr_t base, int banknum, unsigned long max_size)
int erase_region_size;
int erase_region_count;
struct cfi_qry qry;
+ unsigned long max_size;
memset(&qry, 0, sizeof(qry));
@@ -1929,6 +1930,7 @@ ulong flash_get_size (phys_addr_t base, int banknum, unsigned long max_size)
info->size = 1 << qry.dev_size;
/* multiply the size by the number of chips */
info->size *= size_ratio;
+ max_size = cfi_flash_bank_size(banknum);
if (max_size && (info->size > max_size)) {
debug("[truncated from %ldMiB]", info->size >> 20);
info->size = max_size;
@@ -2043,8 +2045,7 @@ unsigned long flash_init (void)
flash_info[i].flash_id = FLASH_UNKNOWN;
if (!flash_detect_legacy(cfi_flash_bank_addr(i), i))
- flash_get_size(cfi_flash_bank_addr(i), i,
- cfi_flash_bank_size(i));
+ flash_get_size(cfi_flash_bank_addr(i), i);
size += flash_info[i].size;
if (flash_info[i].flash_id == FLASH_UNKNOWN) {
#ifndef CONFIG_SYS_FLASH_QUIET_TEST