u-boot.git/drivers/mtd, branch v2015.07-rc2

sunxi/nand: Add support to the SPL for loading u-boot from internal NAND memory

2015-05-29T11:46:36Z

This commit adds support to the sunxi SPL to load u-boot from the internal NAND. Note this only adds support to access the boot partitions to load u-boot, full NAND support to load the kernel, etc. from the nand data partition will come later. Signed-off-by: Roy Spliet Reviewed-by: Hans de Goede Signed-off-by: Hans de Goede

mtd: vf610_nfc: enable ONFI detection

2015-05-24T19:27:46Z

This changes enable ONFI detection. The Read ID command now allows one address byte which is needed for ONFI detection. To read the ONFI parameter page, the NAND_CMD_PARAM need to be supported. The CMD code enables one command and one address byte along with reading data from flash using R/B#, as specified by ONFI. Signed-off-by: Stefan Agner

mtd: vf610_nfc: add 32-error correction option for HW ECC

2015-05-24T19:27:46Z

Add option to choose between current 24-error correction and 32-error correction through Kconfig. 32-error correction allow to use NAND chips which require up to 8-bit error correction per 512 byte (when using 2K pages). Signed-off-by: Stefan Agner

mtd: vf610_nfc: add Freescale NFC controller configs to Kconfig

2015-05-24T19:27:28Z

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 Acked-by: Stefano Babic [scottwood: updated vf610twr_nand_defconfig] Signed-off-by: Scott Wood

mtd: vf610_nfc: use in-band bad block table

2015-05-24T19:26:55Z

Use in-band bad block table (NAND_BBT_NO_OOB) which allows to use the full OOB for hardare ECC purposes. Since there is no ECC correction on the OOB it is also safer to use in-band area to store the bad block table marker. Signed-off-by: Stefan Agner

mtd: vf610_nfc: implement OOB only read

2015-05-24T19:26:55Z

Implement read of OOB area only. When using column and sector size properties, only parts of the page can be read. However, this works only when hardware ECC is disabled, otherwise the ECC engine would ruin the data in the buffer. To allow OOB only reads, three points had to be addressed: - Set ECC mode per command. - Handle NAND_CMD_READOOB seperate. Make sure column and sector size is correctly set up, while disabling ECC. - Now, the OOB data end up at the beginning of the buffer. Remove the special handling of OOB (spareonly). Especially bad block scans benefit from this change. On a 512MiB SLC NAND device, the bad block scan took 1.5s less than before. Signed-off-by: Stefan Agner

mtd: vf610_nfc: allow bitflips in an empty page

2015-05-24T19:26:54Z

Allow bit flips in a empty page up to half of the recoverable bits (strength / 2). Signed-off-by: Stefan Agner

mtd: vf610_nfc: remove read on SEQIN

2015-05-24T19:26:54Z

Since we do not support sub-page writes anyway, reading the page back to the controller on SEQIN command is not required. Remove the page read on SEQIN. However, the column/page values relevant to the SEQIN command, hence set the column/row address on SEQIN command. Signed-off-by: Stefan Agner

mtd: vf610_nfc: remove caching of page in buffer

2015-05-24T19:26:54Z

To improve performance we remember the current page in the buffer and avoid reading it twice. This implicit page cache increases complexity while does not increase performance in real world cases. This patch removes that feature. Acked-by: Bill Pringlemeir Signed-off-by: Stefan Agner

mtd: nand: mxs: Replace magic number for bits per ECC level with macro

2015-05-24T19:26:54Z

Signed-off-by: Jörg Krause Reviewed-by: Marek Vasut