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| author | Stefan Agner <stefan@agner.ch> | 2015-05-08 19:07:11 +0200 |
|---|---|---|
| committer | Scott Wood <scottwood@freescale.com> | 2015-05-24 14:27:28 -0500 |
| commit | 5519194d4f6ba3c1aeea2f07f444cc936913560a (patch) | |
| tree | 2667e696bf6336145ef94b50c5278713e3e36c59 /doc/README.nand | |
| parent | 84d656a2836021c3707172707245ba3d87bd54c8 (diff) | |
| download | u-boot-5519194d4f6ba3c1aeea2f07f444cc936913560a.zip u-boot-5519194d4f6ba3c1aeea2f07f444cc936913560a.tar.gz u-boot-5519194d4f6ba3c1aeea2f07f444cc936913560a.tar.bz2 | |
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')
| -rw-r--r-- | doc/README.nand | 18 |
1 files changed, 0 insertions, 18 deletions
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 ========================= |