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path: root/drivers/mtd/nand/docg4.c
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* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-3/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* mtd: nand/docg4: fix driver after Linux resyncMike Dunn2013-06-17-12/+14
| | | | | | | | | | | | | | | Commit dfe64e2c89731a3f9950d7acd8681b68df2bae03: mtd: resync with Linux-3.7.1 broke the docg4 driver. Specifically: - some of the prototypes of the ecc methods changed - the NAND_NO_AUTOINCR flag was removed - the ecc.strength element was added. This patch fixes these. Tested on the docg4 on my palmtre680 board. Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
* mtd: nand: add driver for diskonchip g4 nand flashMike Dunn2013-05-05-0/+1028
This patch adds a driver for the diskonchip G4 nand flash device. It is based on the driver from the linux kernel. This also includes a separate SPL driver. A separate SPL driver is used because the device operates in a different mode (reliable mode) when loading a boot image, and also because the storage format of the boot image is different from normal data (pages are stored redundantly). The SPL driver basically mimics how a typical IPL reads data from the device. The special operating mode and storage format are used to compensate for the fact that the IPL does not contain the BCH ecc decoding algorithm (due to size constraints). Although the u-boot SPL *could* use ecc, it operates like an IPL for the sake of simplicity and uniformity, since the IPL and SPL share the task of loading the u-boot image. As a side benefit, the SPL driver is very small. [port from linux kernel 3.4 commit 570469f3bde7f71cc1ece07a18d54a05b6a8775d] Signed-off-by: Mike Dunn <mikedunn@newsguy.com>