| Message ID | 20190129164950.31052-1-nicolas.ferre@microchip.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | mmc: atmel-mci: enable 8 bits buswidth support | expand |
On 29/01/2019 17:49:12+0100, Nicolas Ferre wrote: > This patch adds support for 8-bit buswidth. > Relevant SDCR value modified. > > Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> > --- > drivers/mmc/host/atmel-mci.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c > index 47189f9ed4e2..735aa5871358 100644 > --- a/drivers/mmc/host/atmel-mci.c > +++ b/drivers/mmc/host/atmel-mci.c > @@ -1410,6 +1410,9 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) > case MMC_BUS_WIDTH_4: > slot->sdc_reg |= ATMCI_SDCBUS_4BIT; > break; > + case MMC_BUS_WIDTH_8: > + slot->sdc_reg |= ATMCI_SDCBUS_8BIT; > + break; > } > > if (ios->clock) { > @@ -2275,8 +2278,11 @@ static int atmci_init_slot(struct atmel_mci *host, > * use only one bit for data to prevent fifo underruns and overruns > * which will corrupt data. > */ > - if ((slot_data->bus_width >= 4) && host->caps.has_rwproof) > + if ((slot_data->bus_width >= 4) && host->caps.has_rwproof) { > mmc->caps |= MMC_CAP_4_BIT_DATA; > + if (slot_data->bus_width >= 8) > + mmc->caps |= MMC_CAP_8_BIT_DATA; > + } > > if (atmci_get_version(host) < 0x200) { > mmc->max_segs = 256; > -- > 2.17.1 >
On Tue, 29 Jan 2019 at 17:50, Nicolas Ferre <nicolas.ferre@microchip.com> wrote: > > This patch adds support for 8-bit buswidth. > Relevant SDCR value modified. > > Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Applied for next, thanks! Kind regards Uffe > --- > drivers/mmc/host/atmel-mci.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c > index 47189f9ed4e2..735aa5871358 100644 > --- a/drivers/mmc/host/atmel-mci.c > +++ b/drivers/mmc/host/atmel-mci.c > @@ -1410,6 +1410,9 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) > case MMC_BUS_WIDTH_4: > slot->sdc_reg |= ATMCI_SDCBUS_4BIT; > break; > + case MMC_BUS_WIDTH_8: > + slot->sdc_reg |= ATMCI_SDCBUS_8BIT; > + break; > } > > if (ios->clock) { > @@ -2275,8 +2278,11 @@ static int atmci_init_slot(struct atmel_mci *host, > * use only one bit for data to prevent fifo underruns and overruns > * which will corrupt data. > */ > - if ((slot_data->bus_width >= 4) && host->caps.has_rwproof) > + if ((slot_data->bus_width >= 4) && host->caps.has_rwproof) { > mmc->caps |= MMC_CAP_4_BIT_DATA; > + if (slot_data->bus_width >= 8) > + mmc->caps |= MMC_CAP_8_BIT_DATA; > + } > > if (atmci_get_version(host) < 0x200) { > mmc->max_segs = 256; > -- > 2.17.1 >
diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 47189f9ed4e2..735aa5871358 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -1410,6 +1410,9 @@ static void atmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios) case MMC_BUS_WIDTH_4: slot->sdc_reg |= ATMCI_SDCBUS_4BIT; break; + case MMC_BUS_WIDTH_8: + slot->sdc_reg |= ATMCI_SDCBUS_8BIT; + break; } if (ios->clock) { @@ -2275,8 +2278,11 @@ static int atmci_init_slot(struct atmel_mci *host, * use only one bit for data to prevent fifo underruns and overruns * which will corrupt data. */ - if ((slot_data->bus_width >= 4) && host->caps.has_rwproof) + if ((slot_data->bus_width >= 4) && host->caps.has_rwproof) { mmc->caps |= MMC_CAP_4_BIT_DATA; + if (slot_data->bus_width >= 8) + mmc->caps |= MMC_CAP_8_BIT_DATA; + } if (atmci_get_version(host) < 0x200) { mmc->max_segs = 256;
This patch adds support for 8-bit buswidth. Relevant SDCR value modified. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> --- drivers/mmc/host/atmel-mci.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)