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path: root/drivers/mmc/core/mmc.c
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Diffstat (limited to 'drivers/mmc/core/mmc.c')
-rw-r--r--drivers/mmc/core/mmc.c67
1 files changed, 23 insertions, 44 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 2bae69e39544..36217ad5e9b1 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -41,11 +41,11 @@ static const unsigned char tran_mant[] = {
35, 40, 45, 50, 55, 60, 70, 80,
};
-static const unsigned int tacc_exp[] = {
+static const unsigned int taac_exp[] = {
1, 10, 100, 1000, 10000, 100000, 1000000, 10000000,
};
-static const unsigned int tacc_mant[] = {
+static const unsigned int taac_mant[] = {
0, 10, 12, 13, 15, 20, 25, 30,
35, 40, 45, 50, 55, 60, 70, 80,
};
@@ -153,8 +153,8 @@ static int mmc_decode_csd(struct mmc_card *card)
csd->mmca_vsn = UNSTUFF_BITS(resp, 122, 4);
m = UNSTUFF_BITS(resp, 115, 4);
e = UNSTUFF_BITS(resp, 112, 3);
- csd->tacc_ns = (tacc_exp[e] * tacc_mant[m] + 9) / 10;
- csd->tacc_clks = UNSTUFF_BITS(resp, 104, 8) * 100;
+ csd->taac_ns = (taac_exp[e] * taac_mant[m] + 9) / 10;
+ csd->taac_clks = UNSTUFF_BITS(resp, 104, 8) * 100;
m = UNSTUFF_BITS(resp, 99, 4);
e = UNSTUFF_BITS(resp, 96, 3);
@@ -1286,6 +1286,23 @@ out_err:
return err;
}
+static void mmc_select_driver_type(struct mmc_card *card)
+{
+ int card_drv_type, drive_strength, drv_type;
+
+ card_drv_type = card->ext_csd.raw_driver_strength |
+ mmc_driver_type_mask(0);
+
+ drive_strength = mmc_select_drive_strength(card,
+ card->ext_csd.hs200_max_dtr,
+ card_drv_type, &drv_type);
+
+ card->drive_strength = drive_strength;
+
+ if (drv_type)
+ mmc_set_driver_type(card->host, drv_type);
+}
+
static int mmc_select_hs400es(struct mmc_card *card)
{
struct mmc_host *host = card->host;
@@ -1341,6 +1358,8 @@ static int mmc_select_hs400es(struct mmc_card *card)
goto out_err;
}
+ mmc_select_driver_type(card);
+
/* Switch card to HS400 */
val = EXT_CSD_TIMING_HS400 |
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
@@ -1374,23 +1393,6 @@ out_err:
return err;
}
-static void mmc_select_driver_type(struct mmc_card *card)
-{
- int card_drv_type, drive_strength, drv_type;
-
- card_drv_type = card->ext_csd.raw_driver_strength |
- mmc_driver_type_mask(0);
-
- drive_strength = mmc_select_drive_strength(card,
- card->ext_csd.hs200_max_dtr,
- card_drv_type, &drv_type);
-
- card->drive_strength = drive_strength;
-
- if (drv_type)
- mmc_set_driver_type(card->host, drv_type);
-}
-
/*
* For device supporting HS200 mode, the following sequence
* should be done before executing the tuning process.
@@ -1790,29 +1792,6 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
*/
card->reenable_cmdq = card->ext_csd.cmdq_en;
- /*
- * The mandatory minimum values are defined for packed command.
- * read: 5, write: 3
- */
- if (card->ext_csd.max_packed_writes >= 3 &&
- card->ext_csd.max_packed_reads >= 5 &&
- host->caps2 & MMC_CAP2_PACKED_CMD) {
- err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_EXP_EVENTS_CTRL,
- EXT_CSD_PACKED_EVENT_EN,
- card->ext_csd.generic_cmd6_time);
- if (err && err != -EBADMSG)
- goto free_card;
- if (err) {
- pr_warn("%s: Enabling packed event failed\n",
- mmc_hostname(card->host));
- card->ext_csd.packed_event_en = 0;
- err = 0;
- } else {
- card->ext_csd.packed_event_en = 1;
- }
- }
-
if (!oldcard)
host->card = card;