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| author | Matthieu CASTET <matthieu.castet@parrot.com> | 2014-08-14 16:03:18 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2014-09-09 13:59:03 +0200 |
| commit | fac6a52fe9b14851d56b3c19c3d5a95790c46fac (patch) | |
| tree | 36e8884a95666243b2e49cc88dbb7e3fc7aea873 /drivers/mmc/host/sdhci.c | |
| parent | c5abd5e8998e20c2e82999670a03f26f1437d744 (diff) | |
| download | blackbird-op-linux-fac6a52fe9b14851d56b3c19c3d5a95790c46fac.tar.gz blackbird-op-linux-fac6a52fe9b14851d56b3c19c3d5a95790c46fac.zip | |
sdhci : recompute timeout_clk when needed
when SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK is set, timeout_clk is sdclk.
We need to update it when we change sdclk in sdhci_set_clock.
This allow to have a more precisse timeout and max_busy_timeout. This
can help for command that need a big busy wait (erase, ...).
Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/host/sdhci.c')
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index bcad1084cc74..4cc2ff90eeef 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1192,8 +1192,14 @@ void sdhci_set_clock(struct sdhci_host *host, unsigned int clock) } clock_set: - if (real_div) + if (real_div) { host->mmc->actual_clock = (host->max_clk * clk_mul) / real_div; + if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK) { + host->timeout_clk = host->mmc->actual_clock / 1000; + host->mmc->max_busy_timeout = + (1 << 27) / host->timeout_clk; + } + } clk |= (div & SDHCI_DIV_MASK) << SDHCI_DIVIDER_SHIFT; clk |= ((div & SDHCI_DIV_HI_MASK) >> SDHCI_DIV_MASK_LEN) |
