diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 48 |
1 files changed, 24 insertions, 24 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 370cd5a..c9dafed 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -61,7 +61,7 @@ static unsigned int fmax = 515633; * @fifohalfsize: number of bytes that can be written when MCI_TXFIFOHALFEMPTY * is asserted (likewise for RX) * @data_cmd_enable: enable value for data commands. - * @sdio: variant supports SDIO + * @st_sdio: enable ST specific SDIO logic * @st_clkdiv: true if using a ST-specific clock divider algorithm * @datactrl_mask_ddrmode: ddr mode mask in datactrl register. * @blksz_datactrl16: true if Block size is at b16..b30 position in datactrl register @@ -90,7 +90,7 @@ struct variant_data { unsigned int data_cmd_enable; unsigned int datactrl_mask_ddrmode; unsigned int datactrl_mask_sdio; - bool sdio; + bool st_sdio; bool st_clkdiv; bool blksz_datactrl16; bool blksz_datactrl4; @@ -139,7 +139,7 @@ static struct variant_data variant_u300 = { .clkreg_8bit_bus_enable = MCI_ST_8BIT_BUS, .datalength_bits = 16, .datactrl_mask_sdio = MCI_ST_DPSM_SDIOEN, - .sdio = true, + .st_sdio = true, .pwrreg_powerup = MCI_PWR_ON, .f_max = 100000000, .signal_direction = true, @@ -153,7 +153,7 @@ static struct variant_data variant_nomadik = { .clkreg = MCI_CLK_ENABLE, .datalength_bits = 24, .datactrl_mask_sdio = MCI_ST_DPSM_SDIOEN, - .sdio = true, + .st_sdio = true, .st_clkdiv = true, .pwrreg_powerup = MCI_PWR_ON, .f_max = 100000000, @@ -171,7 +171,7 @@ static struct variant_data variant_ux500 = { .clkreg_neg_edge_enable = MCI_ST_UX500_NEG_EDGE, .datalength_bits = 24, .datactrl_mask_sdio = MCI_ST_DPSM_SDIOEN, - .sdio = true, + .st_sdio = true, .st_clkdiv = true, .pwrreg_powerup = MCI_PWR_ON, .f_max = 100000000, @@ -191,7 +191,7 @@ static struct variant_data variant_ux500v2 = { .datactrl_mask_ddrmode = MCI_ST_DPSM_DDRMODE, .datalength_bits = 24, .datactrl_mask_sdio = MCI_ST_DPSM_SDIOEN, - .sdio = true, + .st_sdio = true, .st_clkdiv = true, .blksz_datactrl16 = true, .pwrreg_powerup = MCI_PWR_ON, @@ -814,26 +814,26 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data) if (data->flags & MMC_DATA_READ) datactrl |= MCI_DPSM_DIRECTION; - if (variant->sdio && host->mmc->card) - if (mmc_card_sdio(host->mmc->card)) { - u32 clk; - datactrl |= variant->datactrl_mask_sdio; + if (host->mmc->card && mmc_card_sdio(host->mmc->card)) { + u32 clk; - /* - * The ST Micro variant for SDIO small write transfers - * needs to have clock H/W flow control disabled, - * otherwise the transfer will not start. The threshold - * depends on the rate of MCLK. - */ - if (data->flags & MMC_DATA_WRITE && - (host->size < 8 || - (host->size <= 8 && host->mclk > 50000000))) - clk = host->clk_reg & ~variant->clkreg_enable; - else - clk = host->clk_reg | variant->clkreg_enable; + datactrl |= variant->datactrl_mask_sdio; - mmci_write_clkreg(host, clk); - } + /* + * The ST Micro variant for SDIO small write transfers + * needs to have clock H/W flow control disabled, + * otherwise the transfer will not start. The threshold + * depends on the rate of MCLK. + */ + if (variant->st_sdio && data->flags & MMC_DATA_WRITE && + (host->size < 8 || + (host->size <= 8 && host->mclk > 50000000))) + clk = host->clk_reg & ~variant->clkreg_enable; + else + clk = host->clk_reg | variant->clkreg_enable; + + mmci_write_clkreg(host, clk); + } if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50 || host->mmc->ios.timing == MMC_TIMING_MMC_DDR52) |