diff options
Diffstat (limited to 'drivers/mmc/host/mmc_spi.c')
| -rw-r--r-- | drivers/mmc/host/mmc_spi.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index 951f76dc1ddd..39bb1e30c2d7 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -77,14 +77,8 @@ #define MMC_SPI_BLOCKSIZE 512 - -/* These fixed timeouts come from the latest SD specs, which say to ignore - * the CSD values. The R1B value is for card erase (e.g. the "I forgot the - * card's password" scenario); it's mostly applied to STOP_TRANSMISSION after - * reads which takes nowhere near that long. Older cards may be able to use - * shorter timeouts ... but why bother? - */ -#define r1b_timeout (HZ * 3) +#define MMC_SPI_R1B_TIMEOUT_MS 3000 +#define MMC_SPI_INIT_TIMEOUT_MS 3000 /* One of the critical speed parameters is the amount of data which may * be transferred in one command. If this value is too low, the SD card @@ -248,6 +242,7 @@ static char *maptype(struct mmc_command *cmd) static int mmc_spi_response_get(struct mmc_spi_host *host, struct mmc_command *cmd, int cs_on) { + unsigned long timeout_ms; u8 *cp = host->data->status; u8 *end = cp + host->t.len; int value = 0; @@ -346,8 +341,11 @@ checkstatus: /* maybe we read all the busy tokens already */ while (cp < end && *cp == 0) cp++; - if (cp == end) - mmc_spi_wait_unbusy(host, r1b_timeout); + if (cp == end) { + timeout_ms = cmd->busy_timeout ? cmd->busy_timeout : + MMC_SPI_R1B_TIMEOUT_MS; + mmc_spi_wait_unbusy(host, msecs_to_jiffies(timeout_ms)); + } break; /* SPI R2 == R1 + second status byte; SEND_STATUS @@ -1118,7 +1116,7 @@ static void mmc_spi_initsequence(struct mmc_spi_host *host) /* Try to be very sure any previous command has completed; * wait till not-busy, skip debris from any old commands. */ - mmc_spi_wait_unbusy(host, r1b_timeout); + mmc_spi_wait_unbusy(host, msecs_to_jiffies(MMC_SPI_INIT_TIMEOUT_MS)); mmc_spi_readbytes(host, 10); /* |