Hi, On Thu, May 05 2011, Arindam Nath wrote: > SD cards which conform to Physical Layer Spec v3.01 can support > additional Bus Speed Modes, Driver Strength, and Current Limit > other than the default values. We use CMD6 mode 0 to read these > additional card functions. The values read here will be used > during UHS-I initialization steps. > > Signed-off-by: Arindam Nath <arindam.nath@xxxxxxx> > Reviewed-by: Philip Rakity <prakity@xxxxxxxxxxx> > Tested-by: Philip Rakity <prakity@xxxxxxxxxxx> Thanks, pushed to mmc-next for .40 with the trivial changes below: diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index d4410c9..027d7cb 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -190,7 +190,7 @@ static int mmc_decode_scr(struct mmc_card *card) scr->sda_vsn = UNSTUFF_BITS(resp, 56, 4); scr->bus_widths = UNSTUFF_BITS(resp, 48, 4); if (scr->sda_vsn == SCR_SPEC_VER_2) - /* Check if Physical Layer Spec v3.0 is supported*/ + /* Check if Physical Layer Spec v3.0 is supported */ scr->sda_spec3 = UNSTUFF_BITS(resp, 47, 1); if (UNSTUFF_BITS(resp, 55, 1)) @@ -288,13 +288,11 @@ static int mmc_read_switch(struct mmc_card *card) * If the host or the card can't do the switch, * fail more gracefully. */ - if ((err != -EINVAL) - && (err != -ENOSYS) - && (err != -EFAULT)) + if (err != -EINVAL && err != -ENOSYS && err != -EFAULT) goto out; printk(KERN_WARNING "%s: problem reading Bus Speed modes.\n", @@ -310,14 +308,11 @@ static int mmc_read_switch(struct mmc_card *card) * If the host or the card can't do the switch, * fail more gracefully. */ - if ((err != -EINVAL) - && (err != -ENOSYS) - && (err != -EFAULT)) + if (err != -EINVAL && err != -ENOSYS && err != -EFAULT) goto out; printk(KERN_WARNING "%s: problem reading " @@ -332,14 +327,11 @@ static int mmc_read_switch(struct mmc_card *card) * If the host or the card can't do the switch, * fail more gracefully. */ - if ((err != -EINVAL) - && (err != -ENOSYS) - && (err != -EFAULT)) + if (err != -EINVAL && err != -ENOSYS && err != -EFAULT) goto out; printk(KERN_WARNING "%s: problem reading " - Chris. -- Chris Ball <cjb@xxxxxxxxxx> <http://printf.net/> One Laptop Per Child -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
