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Commit 12a632e6 authored by Masahiro Yamada's avatar Masahiro Yamada Committed by Ulf Hansson
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mmc: sdhci-cadence: override spec version 



The datasheet of the IP (sd4hc) says it is compiatible with SDHCI v4,
but the spec version field in the version register is read as 2
(i.e. SDHCI_SPEC_300) based on the RTL provided by Cadence.

Socionext did not fix it up when it integrated the IP into the SoCs.
So, it is working as SDHCI v3.

It is not a real problem because there is no difference in the program
flow in sdhci.c between SDHCI_SPEC_300/400, but set the real version
just in case.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 8784edc8

drivers/mmc/host/sdhci-cadence.c

+2 −0
Original line number Diff line number Diff line
@@ -340,6 +340,7 @@ static int sdhci_cdns_probe(struct platform_device *pdev) 
	unsigned int nr_phy_params;

	int ret;

	struct device *dev = &pdev->dev;

	static const u16 version = SDHCI_SPEC_400 << SDHCI_SPEC_VER_SHIFT;



	clk = devm_clk_get(dev, NULL);

	if (IS_ERR(clk))
@@ -369,6 +370,7 @@ static int sdhci_cdns_probe(struct platform_device *pdev) 
	host->mmc_host_ops.hs400_enhanced_strobe =

				sdhci_cdns_hs400_enhanced_strobe;

	sdhci_enable_v4_mode(host);

	__sdhci_read_caps(host, &version, NULL, NULL);



	sdhci_get_of_property(pdev);