diff options
| author | Alice Guo | 2020-05-04 22:09:03 +0800 |
|---|---|---|
| committer | Stefano Babic | 2020-05-10 20:55:20 +0200 |
| commit | fe04bcd7e86ba2b9ccbcf83b5afc278e69115756 (patch) | |
| tree | 37d31e59fae56922b75b4e5d60c48bd97e8af0df /drivers | |
| parent | f7bb012ab7e19d3ede6c0e9a39edd6a37bd598ff (diff) | |
nand: enable the Randomizer module for i.mx7 and i.mx8
To enable the Randomizer module, set GPMI_ECCCTRL[RANDOMIZER_ENABLE] to
1, then set GPMI_ECCCOUNT[RANDOMIZER_PAGE] to select randomizer page
number needed to be randomized.
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mtd/nand/raw/mxs_nand.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/mtd/nand/raw/mxs_nand.c b/drivers/mtd/nand/raw/mxs_nand.c index 3fd21e51f2a..c3191feca8e 100644 --- a/drivers/mtd/nand/raw/mxs_nand.c +++ b/drivers/mtd/nand/raw/mxs_nand.c @@ -710,6 +710,12 @@ static int mxs_nand_ecc_read_page(struct mtd_info *mtd, struct nand_chip *nand, d->cmd.pio_words[4] = (dma_addr_t)nand_info->data_buf; d->cmd.pio_words[5] = (dma_addr_t)nand_info->oob_buf; + if ((is_mx7() || is_imx8m()) && nand_info->en_randomizer) { + d->cmd.pio_words[2] |= GPMI_ECCCTRL_RANDOMIZER_ENABLE | + GPMI_ECCCTRL_RANDOMIZER_TYPE2; + d->cmd.pio_words[3] |= (page % 256) << 16; + } + mxs_dma_desc_append(channel, d); /* Compile the DMA descriptor - disable the BCH block. */ @@ -871,7 +877,7 @@ static int mxs_nand_ecc_write_page(struct mtd_info *mtd, * The value is between 0-255. For additional details * check 9.6.6.4 of i.MX7D Applications Processor reference */ - d->cmd.pio_words[3] |= (page % 255) << 16; + d->cmd.pio_words[3] |= (page % 256) << 16; } mxs_dma_desc_append(channel, d); |