From 2a1bedaa03a27b3d4a94f9e251f269814ed72e3e Mon Sep 17 00:00:00 2001
From: Jaehoon Chung <jh80.chung@samsung.com>
Date: Fri, 21 Oct 2016 20:52:35 +0900
Subject: [PATCH] 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>
---
drivers/mmc/sdhci.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/mmc/sdhci.c b/drivers/mmc/sdhci.c
index 10ff57ec8c..766e9eef84 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;
}
--
2.39.5