[PATCH] drivers: mmc: mtk-sd: disable dma for MT8188 and MT8195

[Julien Stephan]

MT8188 and MT8195 SoC should be fully compatible with MT8183, but
currently dma is not working on these SoC. For now, disable dma.
Investigation needed.

Signed-off-by: Julien Stephan <jstephan at baylibre.com>
---
 drivers/mmc/mtk-sd.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/mmc/mtk-sd.c b/drivers/mmc/mtk-sd.c
index 7a4bdee7496..8f93e51599f 100644
--- a/drivers/mmc/mtk-sd.c
+++ b/drivers/mmc/mtk-sd.c
@@ -1989,6 +1989,30 @@ static const struct msdc_compatible mt8189_compat = {
 	.enhance_rx = true,
 };
 
+/* MT8188 and MT8195 should be fully compatible with MT8183
+ * but currently dma is not working on these SoC.
+ * For now, disable dma. Investigation needed.
+ */
+static const struct msdc_compatible mt8188_compat = {
+	.clk_div_bits = 12,
+	.pad_tune0 = true,
+	.async_fifo = true,
+	.data_tune = true,
+	.busy_check = true,
+	.stop_clk_fix = true,
+	.enhance_rx = true,
+};
+
+static const struct msdc_compatible mt8195_compat = {
+	.clk_div_bits = 12,
+	.pad_tune0 = true,
+	.async_fifo = true,
+	.data_tune = true,
+	.busy_check = true,
+	.stop_clk_fix = true,
+	.enhance_rx = true,
+};
+
 static const struct udevice_id msdc_ids[] = {
 	{ .compatible = "mediatek,mt7620-mmc", .data = (ulong)&mt7620_compat },
 	{ .compatible = "mediatek,mt7621-mmc", .data = (ulong)&mt7621_compat },
@@ -2001,6 +2025,8 @@ static const struct udevice_id msdc_ids[] = {
 	{ .compatible = "mediatek,mt8516-mmc", .data = (ulong)&mt8516_compat },
 	{ .compatible = "mediatek,mt8183-mmc", .data = (ulong)&mt8183_compat },
 	{ .compatible = "mediatek,mt8189-mmc", .data = (ulong)&mt8189_compat },
+	{ .compatible = "mediatek,mt8188-mmc", .data = (ulong)&mt8188_compat },
+	{ .compatible = "mediatek,mt8195-mmc", .data = (ulong)&mt8195_compat },
 	{}
 };
 

---
base-commit: d31f96cac1e25153779c44f1fe014978f9b06032
change-id: 20260317-mt8188-mt8195-disable-mmc-disable-dma-b64499a6a47a

Best regards,
-- 
Julien Stephan <jstephan at baylibre.com>