This patch adds the new mode NAND_ECC_HW_OOB_FIRST in the nand code to support 4-bit ECC on TI DaVinci devices with large page (up to 2K) NAND chips. This ECC mode is similar to NAND_ECC_HW, with the exception of read_page API that first reads the OOB area, reads the data in chunks, feeds the ECC from OOB area to the ECC hw engine and perform any correction on the data as per the ECC status reported by the engine. This patch has been accepted by Andrew Morton and can be found at http://userweb.kernel.org/~akpm/mmotm/broken-out/mtd-nand-add-new-ecc-mode-ecc_hw_oob_first.patch Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Sneha Narnakaje <nsnehaprabha@ti.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch adds a new "page" parameter to all NAND read_page/read_page_raw APIs. The read_page API for the new mode ECC_HW_OOB_FIRST requires the page information to send the READOOB command and read the OOB area before the data area. This patch has been accepted by Andrew Morton and can be found at http://userweb.kernel.org/~akpm/mmotm/broken-out/mtd-nand-add-page-parameter-to-all-read_page-read_page_raw-apis.patch WE would like this to become part of the u-boot GIT as well Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Signed-off-by: Sneha Narnakaje <nsnehaprabha@ti.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
This is needed for the MPC512x NAND driver (fsl_nfc_nand.c) which already defines such a 4k plus 218 bytes ECC layout. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Scott Wood <scottwood@freescale.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
This patch renames NAND_MAX_CHIPS to CONFIG_SYS_NAND_MAX_CHIPS and changes the default from 8 to 1 for the legacy and the new MTD NAND layer. This allows to remove all NAND_MAX_CHIPS definitions in the board config files because none of the boards use multi chip support (NAND_MAX_CHIPS > 1) so far. The bamboo and the DU440 define #define NAND_MAX_CHIPS CONFIG_SYS_MAX_NAND_DEVICE but that's bogus and did not work anyhow. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
This removes in nand.h code that is verbatim duplicated from bbm.h, including directly bbm.h in nand.h. The previous state of affairs prevented compiling code for a board hosting both NAND and OneNAND chips. Reported-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alessandro Rubini <rubini@unipv.it> Signed-off-by: Scott Wood <scottwood@freescale.com>
This brings the core NAND code up to date with the Linux kernel. Since there were several drivers in Linux as of the last update that are not in u-boot, I'm not bringing over new drivers that have been added since in the absence of an interested party. I did not update OneNAND since it was recently synced by Kyungmin Park, and I'm not sure exactly what the common ancestor is. Signed-off-by: Scott Wood <scottwood@freescale.com>
Since page size field is changed from oobblock to writesize. But OneNAND is not updated. - fix bufferram management at erase operation This patch includes the NAND/OneNAND state filed too. Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
Rather than scanning on boot, scan upon the first attempt to check the badness of a block. This speeds up boot when not using NAND, and reduces the likelihood of needing to reflash via JTAG if NAND becomes nonfunctional. Signed-off-by: Ilya Yanok <yanok@emcraft.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
- Fixing leading white spaces - Fixing indentation where 4 spaces are used instead of tab - Removing C++ comments (//), wherever I introduced them Signed-off-by: William Juul <william.juul@tandberg.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: William Juul <william.juul@tandberg.com> Signed-off-by: Scott Wood <scottwood@freescale.com>