Including; a check for Ready/NotBusy (RBn) (i.e. wait for current operation to finish and a method to issue Flex commands to the controller.
Signed-off-by: Lee Jones <lee.jo...@linaro.org> --- drivers/mtd/nand/stm_nand_bch.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/mtd/nand/stm_nand_bch.c b/drivers/mtd/nand/stm_nand_bch.c index e909d80..aba4bc5 100644 --- a/drivers/mtd/nand/stm_nand_bch.c +++ b/drivers/mtd/nand/stm_nand_bch.c @@ -719,6 +719,42 @@ static int bch_write(struct mtd_info *mtd, struct nand_chip *chip, } /* + * Hamming-FLEX operations + */ +static int flex_wait_rbn(struct nandi_controller *nandi) +{ + int ret; + + ret = wait_for_completion_timeout(&nandi->rbn_completed, HZ/2); + if (!ret) + dev_err(nandi->dev, "FLEX RBn timeout\n"); + + return ret; +} + +static void flex_cmd(struct nandi_controller *nandi, uint8_t cmd) +{ + uint32_t val; + + val = (FLEX_CMD_CSN | FLEX_CMD_BEATS_1 | cmd); + writel(val, nandi->base + NANDHAM_FLEX_CMD); +} + +static void flex_addr(struct nandi_controller *nandi, + uint32_t addr, int cycles) +{ + addr &= 0x00ffffff; + + BUG_ON(cycles < 1); + BUG_ON(cycles > 3); + + addr |= (FLEX_ADDR_CSN | FLEX_ADDR_ADD8_VALID); + addr |= (cycles & 0x3) << 28; + + writel(addr, nandi->base + NANDHAM_FLEX_ADD); +} + +/* * Bad Block Tables/Bad Block Markers */ #define BBT_MARK_BAD_FACTORY 0x0 -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/