diff options
| author | Stefan Herbrechtsmeier | 2017-01-17 15:58:48 +0100 |
|---|---|---|
| committer | Jaehoon Chung | 2017-01-23 15:37:42 +0900 |
| commit | 6d0e34bf4e21596563e5f5950d097a2eab4c81a8 (patch) | |
| tree | d1d82e018cb8b85d7f0ddb102667b676fe891237 /drivers/mmc/msm_sdhci.c | |
| parent | 0c9e85f67cd86d2d7a3424ea3ebff0e6db7a3915 (diff) | |
mmc: sdhci: Distinguish between base clock and maximum peripheral frequency
The sdhci controller assumes that the base clock frequency is fully supported by
the peripheral and doesn't support hardware limitations. The Linux kernel
distinguishes between base clock (max_clk) of the host controller and maximum
frequency (f_max) of the card interface. Use the same differentiation and allow
the platform to constrain the peripheral interface.
Signed-off-by: Stefan Herbrechtsmeier <stefan.herbrechtsmeier@weidmueller.com>
Diffstat (limited to 'drivers/mmc/msm_sdhci.c')
| -rw-r--r-- | drivers/mmc/msm_sdhci.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/msm_sdhci.c b/drivers/mmc/msm_sdhci.c index f33714b1d81..1db683d01e6 100644 --- a/drivers/mmc/msm_sdhci.c +++ b/drivers/mmc/msm_sdhci.c @@ -96,6 +96,8 @@ static int msm_sdc_probe(struct udevice *dev) host->quirks = SDHCI_QUIRK_WAIT_SEND_CMD | SDHCI_QUIRK_BROKEN_R1B; + host->max_clk = 0; + /* Init clocks */ ret = msm_sdc_clk_init(dev); if (ret) |