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mmc: sdhci-cadence: Use max-frequency property from device tree

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When f_max parameter is 0 in sdhci_setup_cfg(), the function defaults
to using the maximum frequency from host controller capabilities register
instead of the max-frequency property parsed from device tree.

The max-frequency property from device tree is parsed by mmc_of_parse()
and stored in plat->cfg.f_max, but sdhci_setup_cfg() was being called
with f_max=0, causing it to ignore the device tree value and use the
host capabilities register value instead.

Fix this by passing plat->cfg.f_max to sdhci_setup_cfg() to ensure
the device tree specified maximum frequency is respected over the
hardware default.

Signed-off-by: Tanmay Kathpalia <tanmay.kathpalia@altera.com>
Reviewed-by: Balsundar Ponnusamy <balsundar.ponnusamy@altera.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Tanmay Kathpalia
2025-12-03 04:21:33 -08:00
committed by Peng Fan
parent aebb523a23
commit 1e40e419ae
1 changed files with 1 additions and 1 deletions
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2
drivers/mmc/sdhci-cadence.c
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@@ -253,7 +253,7 @@ static int sdhci_cdns_probe(struct udevice *dev)
host->mmc = &plat->mmc;
host->mmc->dev = dev;
ret = sdhci_setup_cfg(&plat->cfg, host, 0, 0);
ret = sdhci_setup_cfg(&plat->cfg, host, plat->cfg.f_max, 0);
if (ret)
return ret;