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-rw-r--r--drivers/mmc/core/core.c2
-rw-r--r--drivers/mmc/core/mmc.c18
-rw-r--r--drivers/mmc/core/mmc_ops.c20
-rw-r--r--drivers/mmc/core/mmc_ops.h4
4 files changed, 27 insertions, 17 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 50bb9a1..060f767 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -380,7 +380,7 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
mmc_retune_hold(card->host);
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
- EXT_CSD_BKOPS_START, 1, timeout,
+ EXT_CSD_BKOPS_START, 1, timeout, 0,
use_busy_signal, true, false);
if (err) {
pr_warn("%s: Error %d starting bkops\n",
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 9355366..cb1cf4e 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1012,7 +1012,7 @@ static int mmc_select_hs(struct mmc_card *card)
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, EXT_CSD_TIMING_HS,
- card->ext_csd.generic_cmd6_time,
+ card->ext_csd.generic_cmd6_time, 0,
true, false, true);
if (!err) {
mmc_set_timing(card->host, MMC_TIMING_MMC_HS);
@@ -1115,7 +1115,7 @@ static int mmc_select_hs400(struct mmc_card *card)
val = EXT_CSD_TIMING_HS;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, val,
- card->ext_csd.generic_cmd6_time,
+ card->ext_csd.generic_cmd6_time, 0,
true, false, true);
if (err) {
pr_err("%s: switch to high-speed from hs200 failed, err:%d\n",
@@ -1150,7 +1150,7 @@ static int mmc_select_hs400(struct mmc_card *card)
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, val,
- card->ext_csd.generic_cmd6_time,
+ card->ext_csd.generic_cmd6_time, 0,
true, false, true);
if (err) {
pr_err("%s: switch to hs400 failed, err:%d\n",
@@ -1193,7 +1193,7 @@ int mmc_hs400_to_hs200(struct mmc_card *card)
/* Switch HS400 to HS DDR */
val = EXT_CSD_TIMING_HS;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING,
- val, card->ext_csd.generic_cmd6_time,
+ val, card->ext_csd.generic_cmd6_time, 0,
true, false, true);
if (err)
goto out_err;
@@ -1207,7 +1207,7 @@ int mmc_hs400_to_hs200(struct mmc_card *card)
/* Switch HS DDR to HS */
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_BUS_WIDTH,
EXT_CSD_BUS_WIDTH_8, card->ext_csd.generic_cmd6_time,
- true, false, true);
+ 0, true, false, true);
if (err)
goto out_err;
@@ -1221,7 +1221,7 @@ int mmc_hs400_to_hs200(struct mmc_card *card)
val = EXT_CSD_TIMING_HS200 |
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, EXT_CSD_HS_TIMING,
- val, card->ext_csd.generic_cmd6_time,
+ val, card->ext_csd.generic_cmd6_time, 0,
true, false, true);
if (err)
goto out_err;
@@ -1295,7 +1295,7 @@ static int mmc_select_hs400es(struct mmc_card *card)
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, val,
- card->ext_csd.generic_cmd6_time,
+ card->ext_csd.generic_cmd6_time, 0,
true, false, true);
if (err) {
pr_err("%s: switch to hs400es failed, err:%d\n",
@@ -1377,7 +1377,7 @@ static int mmc_select_hs200(struct mmc_card *card)
card->drive_strength << EXT_CSD_DRV_STR_SHIFT;
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HS_TIMING, val,
- card->ext_csd.generic_cmd6_time,
+ card->ext_csd.generic_cmd6_time, 0,
true, false, true);
if (err)
goto err;
@@ -1841,7 +1841,7 @@ static int mmc_poweroff_notify(struct mmc_card *card, unsigned int notify_type)
err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_POWER_OFF_NOTIFICATION,
- notify_type, timeout, true, false, false);
+ notify_type, timeout, 0, true, false, false);
if (err)
pr_err("%s: Power Off Notification timed out, %u\n",
mmc_hostname(card->host), timeout);
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index fba5d29..9b2617c 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -530,6 +530,7 @@ static int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
* @value: value to program into EXT_CSD register
* @timeout_ms: timeout (ms) for operation performed by register write,
* timeout of zero implies maximum possible timeout
+ * @timing: new timing to change to
* @use_busy_signal: use the busy signal as response type
* @send_status: send status cmd to poll for busy
* @retry_crc_err: retry when CRC errors when polling with CMD13 for busy
@@ -537,13 +538,14 @@ static int mmc_poll_for_busy(struct mmc_card *card, unsigned int timeout_ms,
* Modifies the EXT_CSD register for selected card.
*/
int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
- unsigned int timeout_ms, bool use_busy_signal, bool send_status,
- bool retry_crc_err)
+ unsigned int timeout_ms, unsigned char timing,
+ bool use_busy_signal, bool send_status, bool retry_crc_err)
{
struct mmc_host *host = card->host;
int err;
struct mmc_command cmd = {0};
bool use_r1b_resp = use_busy_signal;
+ unsigned char old_timing = host->ios.timing;
mmc_retune_hold(host);
@@ -585,16 +587,24 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
if (!use_busy_signal)
goto out;
+ /* Switch to new timing before poll and check switch status. */
+ if (timing)
+ mmc_set_timing(host, timing);
+
/*If SPI or used HW busy detection above, then we don't need to poll. */
if (((host->caps & MMC_CAP_WAIT_WHILE_BUSY) && use_r1b_resp) ||
mmc_host_is_spi(host)) {
if (send_status)
err = mmc_switch_status(card);
- goto out;
+ goto out_tim;
}
/* Let's try to poll to find out when the command is completed. */
err = mmc_poll_for_busy(card, timeout_ms, send_status, retry_crc_err);
+
+out_tim:
+ if (err && timing)
+ mmc_set_timing(host, old_timing);
out:
mmc_retune_release(host);
@@ -604,8 +614,8 @@ out:
int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
unsigned int timeout_ms)
{
- return __mmc_switch(card, set, index, value, timeout_ms, true, true,
- false);
+ return __mmc_switch(card, set, index, value, timeout_ms, 0,
+ true, true, false);
}
EXPORT_SYMBOL_GPL(mmc_switch);
diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h
index 9fccddb..761cb69 100644
--- a/drivers/mmc/core/mmc_ops.h
+++ b/drivers/mmc/core/mmc_ops.h
@@ -29,8 +29,8 @@ int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status);
int mmc_can_ext_csd(struct mmc_card *card);
int mmc_switch_status(struct mmc_card *card);
int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
- unsigned int timeout_ms, bool use_busy_signal, bool send_status,
- bool retry_crc_err);
+ unsigned int timeout_ms, unsigned char timing,
+ bool use_busy_signal, bool send_status, bool retry_crc_err);
#endif
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