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| author | Avri Altman <avri.altman@wdc.com> | 2024-10-06 07:11:42 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2024-10-14 12:29:01 +0200 |
| commit | 403a0293f1c230524e0185b31f69c02a6aed12c7 (patch) | |
| tree | 4301e3ce4c6b7a55eafd7eb092198886b92a6d21 | |
| parent | mmc: core: Don't use close-ended rw for SDUC (diff) | |
| download | linux-403a0293f1c230524e0185b31f69c02a6aed12c7.tar.xz linux-403a0293f1c230524e0185b31f69c02a6aed12c7.zip | |
mmc: core: Add open-ended Ext memory addressing
For open-ended read/write - just send CMD22 before issuing the command.
Reviewed-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20241006051148.160278-5-avri.altman@wdc.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/core/block.c | 5 | ||||
| -rw-r--r-- | drivers/mmc/core/core.c | 3 | ||||
| -rw-r--r-- | include/linux/mmc/core.h | 4 |
3 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index f4817ea3017b..c9325febc31a 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -1759,6 +1759,11 @@ static void mmc_blk_rw_rq_prep(struct mmc_queue_req *mqrq, brq->sbc.flags = MMC_RSP_R1 | MMC_CMD_AC; brq->mrq.sbc = &brq->sbc; } + + if (mmc_card_ult_capacity(card)) { + brq->cmd.ext_addr = blk_rq_pos(req) >> 32; + brq->cmd.has_ext_addr = true; + } } #define MMC_MAX_RETRIES 5 diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index d6c819dd68ed..a0b2999684b3 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -336,6 +336,9 @@ int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq) { int err; + if (mrq->cmd && mrq->cmd->has_ext_addr) + mmc_send_ext_addr(host, mrq->cmd->ext_addr); + init_completion(&mrq->cmd_completion); mmc_retune_hold(host); diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index f0ac2e469b32..a890a71288ef 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -96,6 +96,10 @@ struct mmc_command { unsigned int busy_timeout; /* busy detect timeout in ms */ struct mmc_data *data; /* data segment associated with cmd */ struct mmc_request *mrq; /* associated request */ + + /* for SDUC */ + bool has_ext_addr; + u8 ext_addr; }; struct mmc_data { |