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-rw-r--r--target/linux/bcm53xx/patches-3.14/002-mtd-spi-nor-from-3.18.patch23
1 files changed, 23 insertions, 0 deletions
diff --git a/target/linux/bcm53xx/patches-3.14/002-mtd-spi-nor-from-3.18.patch b/target/linux/bcm53xx/patches-3.14/002-mtd-spi-nor-from-3.18.patch
index 1d837032d6..6fd5c89fce 100644
--- a/target/linux/bcm53xx/patches-3.14/002-mtd-spi-nor-from-3.18.patch
+++ b/target/linux/bcm53xx/patches-3.14/002-mtd-spi-nor-from-3.18.patch
@@ -104,3 +104,26 @@
nor->erase_opcode = SPINOR_OP_SE;
mtd->erasesize = info->sector_size;
}
+--- a/drivers/mtd/spi-nor/Kconfig
++++ b/drivers/mtd/spi-nor/Kconfig
+@@ -7,6 +7,20 @@ menuconfig MTD_SPI_NOR
+
+ if MTD_SPI_NOR
+
++config MTD_SPI_NOR_USE_4K_SECTORS
++ bool "Use small 4096 B erase sectors"
++ default y
++ 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_FSL_QUADSPI
+ tristate "Freescale Quad SPI controller"
+ depends on ARCH_MXC