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mmc: increase MMC SDHCI read status timeout

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Otherwise,  ocassionally see errors like this:
  Flashing sparse image at offset 2078720
  Flashing Sparse Image
  sdhci_send_command: Timeout for status update!
  mmc fail to send stop cmd
  write_sparse_image: Write failed, block #2181088 [0]

This does not affect the actual writing speed, which is controlled by
the default value:
  CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT

It only increases the retries when reading:
  SDHCI_INT_STATUS
to avoid the timeout error.

Signed-off-by: Steve Rae <steve.rae@raedomain.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
This commit is contained in:
Steve Rae 2016-06-29 13:42:01 -07:00 • committed by Tom Rini
parent df6b506f16
commit d90bb43933
1 changed files with 3 additions and 2 deletions
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5
drivers/mmc/sdhci.c
View file

@ -127,6 +127,7 @@ static int sdhci_transfer_data(struct sdhci_host *host, struct mmc_data *data,
#define CONFIG_SDHCI_CMD_MAX_TIMEOUT 3200
#endif
#define CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT 100
#define SDHCI_READ_STATUS_TIMEOUT 1000
static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
struct mmc_data *data)
@ -243,9 +244,9 @@ static int sdhci_send_command(struct mmc *mmc, struct mmc_cmd *cmd,
if (stat & SDHCI_INT_ERROR)
break;
} while (((stat & mask) != mask) &&
(get_timer(start) < CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT));
(get_timer(start) < SDHCI_READ_STATUS_TIMEOUT));
if (get_timer(start) >= CONFIG_SDHCI_CMD_DEFAULT_TIMEOUT) {
if (get_timer(start) >= SDHCI_READ_STATUS_TIMEOUT) {
if (host->quirks & SDHCI_QUIRK_BROKEN_R1B)
return 0;
else {