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| author | Alex Shi <alex.shi@linaro.org> | 2018-03-26 02:32:06 +0000 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2018-03-26 02:32:06 +0000 |
| commit | 95263782222ba14acb4f45ce40343286653a212d (patch) | |
| tree | b1b91815dc7ecc03361e3e3ce192f7d64b71fe2e /drivers/mmc/host/sdhci-of-esdhc.c | |
| parent | 9c032b533b870102c1929870059ec2c089a31f2b (diff) | |
| parent | c5833b96030f9e06cf7c19dd4f99d3b55985eb8c (diff) | |
Merge branch 'linux-linaro-lsk-v4.4' into linux-linaro-lsk-v4.4-androidlsk-v4.4-18.03-android
Diffstat (limited to 'drivers/mmc/host/sdhci-of-esdhc.c')
| -rw-r--r-- | drivers/mmc/host/sdhci-of-esdhc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index 83b1226471c1..ac66c61d9433 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -418,6 +418,20 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock) if (esdhc->vendor_ver < VENDOR_V_23) pre_div = 2; + /* + * Limit SD clock to 167MHz for ls1046a according to its datasheet + */ + if (clock > 167000000 && + of_find_compatible_node(NULL, NULL, "fsl,ls1046a-esdhc")) + clock = 167000000; + + /* + * Limit SD clock to 125MHz for ls1012a according to its datasheet + */ + if (clock > 125000000 && + of_find_compatible_node(NULL, NULL, "fsl,ls1012a-esdhc")) + clock = 125000000; + /* Workaround to reduce the clock frequency for p1010 esdhc */ if (of_find_compatible_node(NULL, NULL, "fsl,p1010-esdhc")) { if (clock > 20000000) |