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authorStefan Agner <stefan@agner.ch>2015-05-08 19:07:11 +0200
committerScott Wood <scottwood@freescale.com>2015-05-24 14:27:28 -0500
commit5519194d4f6ba3c1aeea2f07f444cc936913560a (patch)
tree2667e696bf6336145ef94b50c5278713e3e36c59 /doc/README.nand
parent84d656a2836021c3707172707245ba3d87bd54c8 (diff)
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mtd: vf610_nfc: add Freescale NFC controller configs to Kconfig
This commit allows users to enable/disable the Freescale NFC controller found in systems like Vybrid (VF610), MPC5125, MCF54418 or Kinetis K70 via Kconfig with more detailed help docs. Signed-off-by: Stefan Agner <stefan@agner.ch> Acked-by: Stefano Babic <sbabic@denx.de> [scottwood: updated vf610twr_nand_defconfig] Signed-off-by: Scott Wood <scottwood@freescale.com>
Diffstat (limited to 'doc/README.nand')
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diff --git a/doc/README.nand b/doc/README.nand
index 46d7edd..0ff5633 100644
--- a/doc/README.nand
+++ b/doc/README.nand
@@ -188,24 +188,6 @@ Configuration Options:
This is used by SoC platforms which do not have built-in ELM
hardware engine required for BCH ECC correction.
- CONFIG_SYS_NAND_BUSWIDTH_16BIT
- Indicates that NAND device has 16-bit wide data-bus. In absence of this
- config, bus-width of NAND device is assumed to be either 8-bit and later
- determined by reading ONFI params.
- Above config is useful when NAND device's bus-width information cannot
- be determined from on-chip ONFI params, like in following scenarios:
- - SPL boot does not support reading of ONFI parameters. This is done to
- keep SPL code foot-print small.
- - In current U-Boot flow using nand_init(), driver initialization
- happens in board_nand_init() which is called before any device probe
- (nand_scan_ident + nand_scan_tail), thus device's ONFI parameters are
- not available while configuring controller. So a static CONFIG_NAND_xx
- is needed to know the device's bus-width in advance.
- Some drivers using above config are:
- drivers/mtd/nand/mxc_nand.c
- drivers/mtd/nand/ndfc.c
- drivers/mtd/nand/omap_gpmc.c
-
Platform specific options
=========================