diff options
| -rw-r--r-- | drivers/mmc/host/renesas_sdhi_core.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/mmc/host/renesas_sdhi_core.c b/drivers/mmc/host/renesas_sdhi_core.c index e5db96fd0a69..04f502345b91 100644 --- a/drivers/mmc/host/renesas_sdhi_core.c +++ b/drivers/mmc/host/renesas_sdhi_core.c @@ -348,6 +348,12 @@ static void renesas_sdhi_hs400_complete(struct tmio_mmc_host *host) sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_DT2FF, priv->scc_tappos_hs400); + /* Gen3 can't do automatic tap correction with HS400, so disable it */ + if (sd_ctrl_read16(host, CTL_VERSION) == SDHI_VER_GEN3_SDMMC) + sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL, + ~SH_MOBILE_SDHI_SCC_RVSCNTL_RVSEN & + sd_scc_read32(host, priv, SH_MOBILE_SDHI_SCC_RVSCNTL)); + sd_scc_write32(host, priv, SH_MOBILE_SDHI_SCC_TMPPORT2, (SH_MOBILE_SDHI_SCC_TMPPORT2_HS400EN | SH_MOBILE_SDHI_SCC_TMPPORT2_HS400OSEL) | |