diff options
| author |   Ivan Mikhaylov <i.mikhaylov@yadro.com> | 2019-11-18 13:46:46 +0300 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2019-11-20 13:40:47 +0100 |
| commit | 76216850b207ff61ef409903495bf4535050bc84 (patch) | |
| tree | 711f49934d3ded3b08d7e69605f18b389bfd4680 /drivers/mmc | |
| parent | mmc: sdhci-of-aspeed: enable CONFIG_MMC_SDHCI_IO_ACCESSORS (diff) | |
| download | linux-dev-76216850b207ff61ef409903495bf4535050bc84.tar.xz linux-dev-76216850b207ff61ef409903495bf4535050bc84.zip | |
mmc: sdhci-of-aspeed: add inversion signal presence
Add read_l callback in sdhci_ops with flipping of SDHCI_CARD_PRESENT
bit in case of inverted card detection signal.
Signed-off-by: Ivan Mikhaylov <i.mikhaylov@yadro.com>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/sdhci-of-aspeed.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/mmc/host/sdhci-of-aspeed.c b/drivers/mmc/host/sdhci-of-aspeed.c index 8962f6664381..56912e30c47e 100644 --- a/drivers/mmc/host/sdhci-of-aspeed.c +++ b/drivers/mmc/host/sdhci-of-aspeed.c @@ -111,7 +111,19 @@ static void aspeed_sdhci_set_bus_width(struct sdhci_host *host, int width) sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL); } +static u32 aspeed_sdhci_readl(struct sdhci_host *host, int reg) +{ + u32 val = readl(host->ioaddr + reg); + + if (unlikely(reg == SDHCI_PRESENT_STATE) && + (host->mmc->caps2 & MMC_CAP2_CD_ACTIVE_HIGH)) + val ^= SDHCI_CARD_PRESENT; + + return val; +} + static const struct sdhci_ops aspeed_sdhci_ops = { + .read_l = aspeed_sdhci_readl, .set_clock = aspeed_sdhci_set_clock, .get_max_clock = aspeed_sdhci_get_max_clock, .set_bus_width = aspeed_sdhci_set_bus_width, |