From 12a632e60ae3d65c3348930c4e349f7ceb0606f3 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 29 Aug 2019 19:49:28 +0900 Subject: 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: Masahiro Yamada Acked-by: Adrian Hunter Signed-off-by: Ulf Hansson --- drivers/mmc/host/sdhci-cadence.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers/mmc/host') diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c index 9797e5d4e4a8..ae0ec27dd7cc 100644 --- a/drivers/mmc/host/sdhci-cadence.c +++ b/drivers/mmc/host/sdhci-cadence.c @@ -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); -- cgit v1.2.3