[U-Boot] [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 10ff57e..766e9ee 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; }
On 10/21/2016 08:52 PM, Jaehoon Chung wrote:
To prevent the wrong value check the SD version.
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com
Applied on u-boot-mmc. Thanks!
Best Regards, Jaehoon Chung
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 10ff57e..766e9ee 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;
}
participants (1)
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Jaehoon Chung