[PATCH 9/9] mmc: exynos_dw_mmc: add compatible for exynos7870-dw-mshc-smu
Kaustabh Chakraborty
kauschluss at disroot.org
Fri Oct 17 17:24:14 CEST 2025
Exynos7870 is documented in upstream dt-schema. Add it in the U-Boot
driver.
Note that here it seems that Exynos7 DW MMC is perfectly compatible with
Exynos7870 DW MMC. It's not always true, especially in SDIO cards where
data from a 64-bit FIFO is read in two 32-bit halves [1]. Since SDIO
isn't used or implemented here, it's oblivious. But upstream's schema
considers that quirk, so that compatible is followed.
Link: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=7cbe799ac10f [1]
Signed-off-by: Kaustabh Chakraborty <kauschluss at disroot.org>
---
drivers/mmc/exynos_dw_mmc.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mmc/exynos_dw_mmc.c b/drivers/mmc/exynos_dw_mmc.c
index d436d33f53b36aadab3621a14e37ced71b23d96e..12d7411a72ef5cb80689bcb0ae1398f375ec9a5f 100644
--- a/drivers/mmc/exynos_dw_mmc.c
+++ b/drivers/mmc/exynos_dw_mmc.c
@@ -468,6 +468,9 @@ static const struct udevice_id exynos_dwmmc_ids[] = {
}, {
.compatible = "samsung,exynos7-dw-mshc-smu",
.data = (ulong)&exynos7_smu_drv_data,
+ }, {
+ .compatible = "samsung,exynos7870-dw-mshc-smu",
+ .data = (ulong)&exynos7_smu_drv_data,
},
{ }
};
--
2.51.0
More information about the U-Boot
mailing list