Hi Andrei,
On Tue, Apr 12 2011, Andrei Warkentin wrote:
> CMD38 argument is passed through EXT_CSD[113].
>
> Signed-off-by: Andrei Warkentin <andr...@motorola.com>
> ---
> drivers/mmc/card/block.c | 40 +++++++++++++++++++++++++++++++++++++++-
> include/linux/mmc/card.h | 1 +
> 2 files changed, 40 insertions(+), 1 deletions(-)
>
> diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
> index 1bf1c5d..8895bb9 100644
> --- a/drivers/mmc/card/block.c
> +++ b/drivers/mmc/card/block.c
> @@ -48,6 +48,13 @@ MODULE_ALIAS("mmc:block");
> #endif
> #define MODULE_PARAM_PREFIX "mmcblk."
>
> +#define INAND_CMD38_ARG_EXT_CSD 113
> +#define INAND_CMD38_ARG_ERASE 0x00
> +#define INAND_CMD38_ARG_TRIM 0x01
> +#define INAND_CMD38_ARG_SECERASE 0x80
> +#define INAND_CMD38_ARG_SECTRIM1 0x81
> +#define INAND_CMD38_ARG_SECTRIM2 0x88
> +
> #define REL_WRITES_SUPPORTED(card) (mmc_card_mmc((card)) && \
> (((card)->ext_csd.rel_param & EXT_CSD_WR_REL_PARAM_EN) || \
> ((card)->ext_csd.rel_sectors)))
> @@ -356,6 +363,15 @@ static int mmc_blk_issue_discard_rq(struct mmc_queue
> *mq, struct request *req)
> else
> arg = MMC_ERASE_ARG;
>
> + if (card->quirks & MMC_QUIRK_INAND_CMD38) {
> + err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
> + INAND_CMD38_ARG_EXT_CSD,
> + arg == MMC_TRIM_ARG ?
> + INAND_CMD38_ARG_TRIM :
> + INAND_CMD38_ARG_ERASE);
You're still missing the final argument to mmc_switch(), no?
Thanks,
- Chris.
--
Chris Ball <c...@laptop.org> <http://printf.net/>
One Laptop Per Child
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