Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / mtd / spi-nor / Kconfig

diff --git a/kernel/drivers/mtd/spi-nor/Kconfig b/kernel/drivers/mtd/spi-nor/Kconfig
new file mode 100644 (file)
index 0000000..64a4f0e
--- /dev/null
+++ b/kernel/drivers/mtd/spi-nor/Kconfig
@@ -0,0 +1,31 @@
+menuconfig MTD_SPI_NOR
+       tristate "SPI-NOR device support"
+       depends on MTD
+       help
+         This is the framework for the SPI NOR which can be used by the SPI
+         device drivers and the SPI-NOR device driver.
+
+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
+       help
+         This enables support for the Quad SPI controller in master mode.
+         We only connect the NOR to this controller now.
+
+endif # MTD_SPI_NOR