Thread (29 messages) 29 messages, 3 authors, 2026-03-05

Re: [PATCH v2 4/7] mmc: sdhci-esdhc-imx: add NXP S32N79 support

From: Frank Li <Frank.li@nxp.com>
Date: 2026-02-25 15:26:23
Also in: imx, linux-devicetree, linux-mmc, lkml

On Wed, Feb 25, 2026 at 02:38:55PM +0100, Ciprian Costea wrote:
From: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>

Add support for the uSDHC controller found in NXP S32N79 automotive SoCs.

The controller is compatible with the existing sdhci-esdhc-imx driver.
"compatible" is not exactly,

Add support for the uSDHC controller found in NXP S32N79 automotive SoCs,
which reuse the existing sdhci-esdhc-imx driver with slice difference.

Compared with s32n79, needn't set ESDHC_FLAG_SKIP_CD_WAKE flags because
...

Frank
quoted hunk ↗ jump to hunk
Co-developed-by: Larisa Grigore <redacted>
Signed-off-by: Larisa Grigore <redacted>
Signed-off-by: Ciprian Marian Costea <ciprianmarian.costea@oss.nxp.com>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 9 +++++++++
 1 file changed, 9 insertions(+)
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index a7a5df673b0f..28288fca87ff 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -321,6 +321,14 @@ static struct esdhc_soc_data usdhc_s32g2_data = {
 	.quirks = SDHCI_QUIRK_NO_LED,
 };

+static struct esdhc_soc_data usdhc_s32n79_data = {
+	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_MAN_TUNING
+			| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
+			| ESDHC_FLAG_HS400 | ESDHC_FLAG_HS400_ES
+			| ESDHC_FLAG_SKIP_ERR004536,
+	.quirks = SDHCI_QUIRK_NO_LED,
+};
+
 static struct esdhc_soc_data usdhc_imx7ulp_data = {
 	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_MAN_TUNING
 			| ESDHC_FLAG_HAVE_CAP1 | ESDHC_FLAG_HS200
@@ -408,6 +416,7 @@ static const struct of_device_id imx_esdhc_dt_ids[] = {
 	{ .compatible = "fsl,imx95-usdhc", .data = &usdhc_imx95_data, },
 	{ .compatible = "fsl,imxrt1050-usdhc", .data = &usdhc_imxrt1050_data, },
 	{ .compatible = "nxp,s32g2-usdhc", .data = &usdhc_s32g2_data, },
+	{ .compatible = "nxp,s32n79-usdhc", .data = &usdhc_s32n79_data, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, imx_esdhc_dt_ids);
--
2.43.0
  
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