summaryrefslogtreecommitdiffstats
path: root/drivers/mtd/spi-nor/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/mtd/spi-nor/Kconfig')
-rw-r--r--drivers/mtd/spi-nor/Kconfig13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/mtd/spi-nor/Kconfig b/drivers/mtd/spi-nor/Kconfig
index a84591fdd1..51cebcf35b 100644
--- a/drivers/mtd/spi-nor/Kconfig
+++ b/drivers/mtd/spi-nor/Kconfig
@@ -7,6 +7,19 @@ menuconfig MTD_SPI_NOR
if MTD_SPI_NOR
+config MTD_SPI_NOR_USE_4K_SECTORS
+ bool "Use small 4096 B erase sectors"
+ help
+ Many flash memories support erasing small (4096 B) sectors. Depending
+ on the usage this feature may provide performance gain in comparison
+ to erasing whole blocks (32/64 KiB).
+ Changing a small part of the flash's contents is usually faster with
+ small sectors. On the other hand erasing should be faster when using
+ 64 KiB block instead of 16 × 4 KiB sectors.
+
+ Please note that some tools/drivers/filesystems may not work with
+ 4096 B erase size (e.g. UBIFS requires 15 KiB as a minimum).
+
config SPI_CADENCE_QUADSPI
tristate "Cadence Quad SPI controller"
help