diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-21 18:46:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-12-21 18:46:08 +0300 |
| commit | cd6a22310ec2a70092e136d0cd65bb77c1502521 (patch) | |
| tree | c01fa788b27b240c7b426d7f329d92bd58c7b8f5 /drivers/mmc/core/mmc.c | |
| parent | 1e12a521d6917004f8b95a3b5864b92edc2694c8 (diff) | |
| parent | 177c459b08a34dcf004aa9a4c1f1d8be682ff3af (diff) | |
| download | linux-cd6a22310ec2a70092e136d0cd65bb77c1502521.tar.xz | |
Merge USB 4.20-rc8 mergepoint into usb-next
We need the USB changes in here for additional patches to be able to
apply cleanly.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mmc/core/mmc.c')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index bc1bd2c25613..55997cf84b39 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -30,6 +30,7 @@ #include "pwrseq.h" #define DEFAULT_CMD6_TIMEOUT_MS 500 +#define MIN_CACHE_EN_TIMEOUT_MS 1600 static const unsigned int tran_exp[] = { 10000, 100000, 1000000, 10000000, @@ -526,8 +527,7 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) card->cid.year += 16; /* check whether the eMMC card supports BKOPS */ - if (!mmc_card_broken_hpi(card) && - ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1) { + if (ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1) { card->ext_csd.bkops = 1; card->ext_csd.man_bkops_en = (ext_csd[EXT_CSD_BKOPS_EN] & @@ -1782,20 +1782,26 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr, if (err) { pr_warn("%s: Enabling HPI failed\n", mmc_hostname(card->host)); + card->ext_csd.hpi_en = 0; err = 0; - } else + } else { card->ext_csd.hpi_en = 1; + } } /* - * If cache size is higher than 0, this indicates - * the existence of cache and it can be turned on. + * If cache size is higher than 0, this indicates the existence of cache + * and it can be turned on. Note that some eMMCs from Micron has been + * reported to need ~800 ms timeout, while enabling the cache after + * sudden power failure tests. Let's extend the timeout to a minimum of + * DEFAULT_CACHE_EN_TIMEOUT_MS and do it for all cards. */ - if (!mmc_card_broken_hpi(card) && - card->ext_csd.cache_size > 0) { + if (card->ext_csd.cache_size > 0) { + unsigned int timeout_ms = MIN_CACHE_EN_TIMEOUT_MS; + + timeout_ms = max(card->ext_csd.generic_cmd6_time, timeout_ms); err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_CACHE_CTRL, 1, - card->ext_csd.generic_cmd6_time); + EXT_CSD_CACHE_CTRL, 1, timeout_ms); if (err && err != -EBADMSG) goto free_card; |