diff options
| author | Judith Mendez <[email protected]> | 2025-05-22 10:05:50 -0500 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2025-06-04 11:50:39 -0600 |
| commit | 2782ce5fce883554c968b8852a5ecfde0f2b9a95 (patch) | |
| tree | ebdbf5885c9a6e5e1770015a653d053770efdee0 | |
| parent | 4ef863f2d69417df2bd88358bd79a51995ac5bc5 (diff) | |
mmc: am654_sdhci: Clear UHS_MODE_SELECT when <= MMC_HS_52
This clears UHS_MODE_SELECT for timing modes <= MMC_HS_52.
When initializing to HS400 mode, the host controller downgrades to non-uhs
modes so clear UHS_MODE_SELECT at modes <= MMC_HS_52.
This fixes eMMC writes on j7200 EVM.
Fixes: 6067aa66b3bb ("mmc: am654_sdhci: Add am654_sdhci_set_control_reg")
Signed-off-by: Judith Mendez <[email protected]>
Reviewed-by: Peng Fan <[email protected]>
| -rw-r--r-- | drivers/mmc/am654_sdhci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/mmc/am654_sdhci.c b/drivers/mmc/am654_sdhci.c index 0df3568f073..d3c8f94dd0c 100644 --- a/drivers/mmc/am654_sdhci.c +++ b/drivers/mmc/am654_sdhci.c @@ -527,11 +527,16 @@ static int am654_sdhci_execute_tuning(struct mmc *mmc, u8 opcode) void am654_sdhci_set_control_reg(struct sdhci_host *host) { struct mmc *mmc = host->mmc; + u32 reg; + reg = sdhci_readw(host, SDHCI_HOST_CONTROL2); + reg &= ~SDHCI_CTRL_UHS_MASK; sdhci_set_voltage(host); if (mmc->selected_mode > MMC_HS_52) sdhci_set_uhs_timing(host); + else + sdhci_writew(host, reg, SDHCI_HOST_CONTROL2); } const struct sdhci_ops am654_sdhci_ops = { |