From 34aeb386af0edb449a6a3c34c41aeb00a85a3d2c Mon Sep 17 00:00:00 2001 From: Peter Geis <pgwipeout@gmail.com> Date: Tue, 19 Dec 2023 15:35:52 +0200 Subject: [PATCH] mmc: tegra: use max-frequency from device tree if provided The driver currently hard-codes the max freqency for the sdhci controllers. If the controller is unable to operate at the max frequency, the mmc card will not be available on the first scan. Subsequent scans will eventually find a working combination. Fix this by allowing the driver to check for the max-frequency property and default to the original value if it doesn't exist. Signed-off-by: Peter Geis <pgwipeout@gmail.com> Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com> --- drivers/mmc/tegra_mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/tegra_mmc.c b/drivers/mmc/tegra_mmc.c index d507adbb36..c01fb3d016 100644 --- a/drivers/mmc/tegra_mmc.c +++ b/drivers/mmc/tegra_mmc.c @@ -698,7 +698,7 @@ static int tegra_mmc_probe(struct udevice *dev) * (actually 52MHz) */ cfg->f_min = 375000; - cfg->f_max = 48000000; + cfg->f_max = dev_read_u32_default(dev, "max-frequency", 48000000); cfg->b_max = CONFIG_SYS_MMC_MAX_BLK_COUNT; -- 2.39.5