FSL UPM NAND driver

PATCH New Anton Vorontsov 1 participant 1 message Mar 11, 2008

Subsystems (2)

Memory technology devices (MTD) NAND flash

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Anton Vorontsov

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2008-03-11 19:33 UTC #0 lore raw

PATCH 1/1 FSL UPM NAND driver

This is very simple driver, NAND is connected through localbus, and User-Programmable Machine is doing various adjustments to speak NAND. No special efforts needed to do read and write cycles, though to control ALE and CLE phases, we ask UPM to generate exact pre-programmed signals on the localbus lines.

Signed-off-by Anton Vorontsov <[email protected]>

---
 drivers/mtd/nand/Kconfig   |    8 ++
 drivers/mtd/nand/Makefile  |    1 +
 drivers/mtd/nand/fsl_upm.c |  291 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 300 insertions(+), 0 deletions(-)
 create mode 100644 drivers/mtd/nand/fsl_upm.c

drivers/mtd/nand/Kconfig +8 -0

index 4a3c675..288b871 100644
@@ -330,4 +330,12 @@ config MTD_NAND_FSL_ELBC
 	  Enabling this option will enable you to use this to control
 	  external NAND devices.
 
+config MTD_NAND_FSL_UPM
+	tristate "Support for NAND on Freescale UPM"
+	depends on MTD_NAND && OF_GPIO && (PPC_83xx || PPC_85xx)
+	select FSL_LBC
+	help
+	  Enables support for NAND Flash chips wired onto Freescale PowerPC
+	  processor localbus with User-Programmable Machine support.
+
 endif # MTD_NAND

drivers/mtd/nand/Makefile +1 -0

index 80d575e..44eddb1 100644
@@ -32,5 +32,6 @@ obj-$(CONFIG_MTD_ALAUDA)		+= alauda.o
 obj-$(CONFIG_MTD_NAND_PASEMI)		+= pasemi_nand.o
 obj-$(CONFIG_MTD_NAND_ORION)		+= orion_nand.o
 obj-$(CONFIG_MTD_NAND_FSL_ELBC)		+= fsl_elbc_nand.o
+obj-$(CONFIG_MTD_NAND_FSL_UPM)		+= fsl_upm.o
 
 nand-objs := nand_base.o nand_bbt.o

drivers/mtd/nand/fsl_upm.c new file +291 -0

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