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mmc: am654_sdhci: Clear UHS_MODE_SELECT when <= MMC_HS_52

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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: 6067aa66b3 ("mmc: am654_sdhci: Add am654_sdhci_set_control_reg")
Signed-off-by: Judith Mendez <jm@ti.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Judith Mendez
2025-05-22 10:05:50 -05:00
committed by Tom Rini
parent 4ef863f2d6
commit 2782ce5fce
1 changed files with 5 additions and 0 deletions
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5
drivers/mmc/am654_sdhci.c
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@@ -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) void am654_sdhci_set_control_reg(struct sdhci_host *host)
{ {
struct mmc *mmc = host->mmc; struct mmc *mmc = host->mmc;
u32 reg;
reg = sdhci_readw(host, SDHCI_HOST_CONTROL2);
reg &= ~SDHCI_CTRL_UHS_MASK;
sdhci_set_voltage(host); sdhci_set_voltage(host);
if (mmc->selected_mode > MMC_HS_52) if (mmc->selected_mode > MMC_HS_52)
sdhci_set_uhs_timing(host); sdhci_set_uhs_timing(host);
else
sdhci_writew(host, reg, SDHCI_HOST_CONTROL2);
} }
const struct sdhci_ops am654_sdhci_ops = { const struct sdhci_ops am654_sdhci_ops = {