From: Ludovic Barre <[email protected]> This patch adds default helper functions to define datactrl value. Each variant could use these helpers to define datactrl and adds their specific field.
Signed-off-by: Ludovic Barre <[email protected]> --- drivers/mmc/host/mmci.c | 25 +++++++++++++++++++++++++ drivers/mmc/host/mmci.h | 5 +++++ 2 files changed, 30 insertions(+) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 9e6a2c1..28b76c5 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -983,6 +983,31 @@ static void mmci_post_request(struct mmc_host *mmc, struct mmc_request *mrq, mmci_unprep_data(host, data, err); } +u32 mmci_dctrl_blksz(struct mmci_host *host) +{ + return (ffs(host->data->blksz) - 1) << 4; +} + +u32 mmci_dctrl_dir(struct mmci_host *host) +{ + return host->data->flags & MMC_DATA_READ ? MCI_DPSM_DIRECTION : 0; +} + +u32 mmci_dctrl_ddr(struct mmci_host *host) +{ + if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50 || + host->mmc->ios.timing == MMC_TIMING_MMC_DDR52) + return host->variant->datactrl_mask_ddrmode; + return 0; +} + +u32 mmci_dctrl_sdio(struct mmci_host *host) +{ + if (host->mmc->card && mmc_card_sdio(host->mmc->card)) + return host->variant->datactrl_mask_sdio; + return 0; +} + static void mmci_start_data(struct mmci_host *host, struct mmc_data *data) { struct variant_data *variant = host->variant; diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h index a59049b..32ae41d 100644 --- a/drivers/mmc/host/mmci.h +++ b/drivers/mmc/host/mmci.h @@ -430,6 +430,11 @@ struct mmci_host { void mmci_write_clkreg(struct mmci_host *host, u32 clk); void mmci_write_pwrreg(struct mmci_host *host, u32 pwr); +u32 mmci_dctrl_blksz(struct mmci_host *host); +u32 mmci_dctrl_dir(struct mmci_host *host); +u32 mmci_dctrl_ddr(struct mmci_host *host); +u32 mmci_dctrl_sdio(struct mmci_host *host); + #ifdef CONFIG_DMA_ENGINE int mmci_dmae_prep_data(struct mmci_host *host, struct mmc_data *data, bool next); -- 2.7.4
