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authorJaehoon Chung <jh80.chung@samsung.com>2016-10-21 20:52:35 +0900
committerJaehoon Chung <jh80.chung@samsung.com>2016-10-28 11:02:16 +0900
commit2a1bedaa03a27b3d4a94f9e251f269814ed72e3e (patch)
treebfd47fdc3dfa07744bc716f467b9b8a574d3c364 /drivers
parent288db7c7c00acadf699a726deba2d9825bdd9c2b (diff)
mmc: sdhci: assign to clk_mul when host version is upper than SD3.0
To prevent the wrong value check the SD version. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/sdhci.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 10ff57ec8c7..766e9eef84a 100644
--- a/drivers/mmc/sdhci.c
+++ b/drivers/mmc/sdhci.c
@@ -608,9 +608,11 @@ int sdhci_setup_cfg(struct mmc_config *cfg, struct sdhci_host *host,
* In case of Host Controller v3.00, find out whether clock
* multiplier is supported.
*/
- caps_1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
- host->clk_mul = (caps_1 & SDHCI_CLOCK_MUL_MASK) >>
- SDHCI_CLOCK_MUL_SHIFT;
+ if (SDHCI_GET_VERSION(host) >= SDHCI_SPEC_300) {
+ caps_1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);
+ host->clk_mul = (caps_1 & SDHCI_CLOCK_MUL_MASK) >>
+ SDHCI_CLOCK_MUL_SHIFT;
+ }
return 0;
}