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- --- a/drivers/mtd/devices/Kconfig
- +++ b/drivers/mtd/devices/Kconfig
- @@ -102,6 +102,14 @@ config M25PXX_USE_FAST_READ
- help
- This option enables FAST_READ access supported by ST M25Pxx.
-
- +config M25PXX_PREFER_SMALL_SECTOR_ERASE
- + bool "Prefer small sector erase"
- + depends on MTD_M25P80
- + default y
- + help
- + This option enables use of the small erase sectors if that is
- + supported by the flash chip.
- +
- config MTD_SST25L
- tristate "Support SST25L (non JEDEC) SPI Flash chips"
- depends on SPI_MASTER
- --- a/drivers/mtd/devices/m25p80.c
- +++ b/drivers/mtd/devices/m25p80.c
- @@ -84,6 +84,12 @@
-
- #define JEDEC_MFR(_jedec_id) ((_jedec_id) >> 16)
-
- +#ifdef CONFIG_M25PXX_PREFER_SMALL_SECTOR_ERASE
- +#define PREFER_SMALL_SECTOR_ERASE 1
- +#else
- +#define PREFER_SMALL_SECTOR_ERASE 0
- +#endif
- +
- /****************************************************************************/
-
- struct m25p {
- @@ -925,7 +931,7 @@ static int __devinit m25p_probe(struct s
- flash->mtd.write = m25p80_write;
-
- /* prefer "small sector" erase if possible */
- - if (info->flags & SECT_4K) {
- + if (PREFER_SMALL_SECTOR_ERASE && (info->flags & SECT_4K)) {
- flash->erase_opcode = OPCODE_BE_4K;
- flash->mtd.erasesize = 4096;
- } else if (info->flags & SECT_4K_PMC) {
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