[PATCH] mmc: meson_gx_mmc: reduce maximum frequency

Nick Xie xieqinick at gmail.com
Tue Dec 9 06:57:50 CET 2025


Reduce the maximum frequency to 40MHz to be compatible with
more eMMC. And the Amlogic vendor U-Boot also use the maximum
frequency of 40MHz.

Signed-off-by: Nick Xie <nick at khadas.com>
---
 drivers/mmc/meson_gx_mmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/meson_gx_mmc.c b/drivers/mmc/meson_gx_mmc.c
index 5852b24c6d2..87c5f04da0f 100644
--- a/drivers/mmc/meson_gx_mmc.c
+++ b/drivers/mmc/meson_gx_mmc.c
@@ -278,7 +278,7 @@ static int meson_mmc_probe(struct udevice *dev)
 	cfg->host_caps = MMC_MODE_8BIT | MMC_MODE_4BIT |
 			MMC_MODE_HS_52MHz | MMC_MODE_HS;
 	cfg->f_min = DIV_ROUND_UP(SD_EMMC_CLKSRC_24M, CLK_MAX_DIV);
-	cfg->f_max = 100000000; /* 100 MHz */
+	cfg->f_max = 40000000; /* 40 MHz */
 	cfg->b_max = 511; /* max 512 - 1 blocks */
 	cfg->name = dev->name;
 
-- 
2.17.1



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