diff options
| author | Avri Altman <avri.altman@wdc.com> | 2019-02-06 12:28:06 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2019-02-25 08:40:58 +0100 |
| commit | 68539e2bc34437d8c5fbcc234dddcc40bd6bb1cb (patch) | |
| tree | 27a82ede7323877ee4892da0991371845d0d8bf1 /drivers/mmc/core | |
| parent | mmc: core: Calculate the discard arg only once (diff) | |
| download | linux-68539e2bc34437d8c5fbcc234dddcc40bd6bb1cb.tar.xz linux-68539e2bc34437d8c5fbcc234dddcc40bd6bb1cb.zip | |
mmc: core: Indicate SD specs higher than 4.0
SD specs version 4.x and 5.x have a dedicated slices in the SCR register.
Higher versions will rely on a combination of the existing fields.
Signed-off-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core')
| -rw-r--r-- | drivers/mmc/core/sd.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index bd48b28d641b..c2db94dab711 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -209,6 +209,11 @@ static int mmc_decode_scr(struct mmc_card *card) /* Check if Physical Layer Spec v3.0 is supported */ scr->sda_spec3 = UNSTUFF_BITS(resp, 47, 1); + if (scr->sda_spec3) { + scr->sda_spec4 = UNSTUFF_BITS(resp, 42, 1); + scr->sda_specx = UNSTUFF_BITS(resp, 38, 4); + } + if (UNSTUFF_BITS(resp, 55, 1)) card->erased_byte = 0xFF; else |