[PATCH v2 0/2] mmc: spacemit: Add support for K3 SoC

[PATCH v2 0/2] mmc: spacemit: Add support for K3 SoC

[Yixun Lan]

Enable SDHCI controller support on new SpacemiT K3 SoC, while as before
only the third controller and the eMMC device has been tested which using
vendor K3 evb board. This board has not acquired support in mainline
kernel, so I've omitted the DT part patches for now.

The new SDHCI controller almost reuse the same IP as old K1 generation,
while fixed the broken 64BIT DMA issue.

Hi Ulf,
 Any chance to queue this for v6.20? I know it's a little bit late,
but the patch itself is quite simple and we've tested on evb board.

Signed-off-by: Yixun Lan <dlan@kernel.org>
---
Changes in v2:
- collect Rob's Ack
- drop uncessary blank line
- drop return check from of_device_get_match_data
- Link to v1: https://lore.kernel.org/r/20260121-07-k3-mmc-v1-0-ff77c07bfdf6@kernel.org

---
Yixun Lan (2):
      dt-bindings: mmc: spacemit,sdhci: add support for K3 SoC
      mmc: sdhci-of-k1: spacemit: Add support for K3 SoC

 .../devicetree/bindings/mmc/spacemit,sdhci.yaml       |  4 +++-
 drivers/mmc/host/sdhci-of-k1.c                        | 19 +++++++++++++++++--
 2 files changed, 20 insertions(+), 3 deletions(-)
---
base-commit: 6cefff068d030786d63fa50970d6581c354630b2
change-id: 20260112-07-k3-mmc-6ca01267e834

Best regards,
-- 
Yixun Lan <dlan@kernel.org>

[PATCH v2 1/2] dt-bindings: mmc: spacemit,sdhci: add support for K3 SoC

[Yixun Lan]

The SDHCI controller found on SpacemiT K3 SoC share the same IP with
K1 generation, while fixed the broken 64BIT DMA issue. Introduce a
compatible string to enable support for it.

Acked-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Yixun Lan <dlan@kernel.org>
---
 Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml
index de4e9efeb666..9a055d963a7f 100644
--- a/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml
+++ b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml
@@ -14,7 +14,9 @@ allOf:
 
 properties:
   compatible:
-    const: spacemit,k1-sdhci
+    enum:
+      - spacemit,k1-sdhci
+      - spacemit,k3-sdhci
 
   reg:
     maxItems: 1

-- 
2.52.0

[PATCH v2 2/2] mmc: sdhci-of-k1: spacemit: Add support for K3 SoC

[Yixun Lan]

The SDHCI controller found on SpacemiT K3 SoC share the same IP with K1
generation and introduce a compatible data to denote the change that broken
64BIT DMA issue has been fixed.

Signed-off-by: Yixun Lan <dlan@kernel.org>
---
 drivers/mmc/host/sdhci-of-k1.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-of-k1.c b/drivers/mmc/host/sdhci-of-k1.c
index a160e1d5d9bd..455656f9842d 100644
--- a/drivers/mmc/host/sdhci-of-k1.c
+++ b/drivers/mmc/host/sdhci-of-k1.c
@@ -259,8 +259,20 @@ static const struct sdhci_pltfm_data spacemit_sdhci_k1_pdata = {
 		   SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
 };
 
+static const struct sdhci_pltfm_data spacemit_sdhci_k3_pdata = {
+	.ops = &spacemit_sdhci_ops,
+	.quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+		  SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC |
+		  SDHCI_QUIRK_32BIT_ADMA_SIZE |
+		  SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN |
+		  SDHCI_QUIRK_BROKEN_CARD_DETECTION |
+		  SDHCI_QUIRK_BROKEN_TIMEOUT_VAL,
+	.quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+};
+
 static const struct of_device_id spacemit_sdhci_of_match[] = {
-	{ .compatible = "spacemit,k1-sdhci" },
+	{ .compatible = "spacemit,k1-sdhci", .data = &spacemit_sdhci_k1_pdata },
+	{ .compatible = "spacemit,k3-sdhci", .data = &spacemit_sdhci_k3_pdata },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, spacemit_sdhci_of_match);
@@ -271,10 +283,13 @@ static int spacemit_sdhci_probe(struct platform_device *pdev)
 	struct spacemit_sdhci_host *sdhst;
 	struct sdhci_pltfm_host *pltfm_host;
 	struct sdhci_host *host;
+	const struct sdhci_pltfm_data *data;
 	struct mmc_host_ops *mops;
 	int ret;
 
-	host = sdhci_pltfm_init(pdev, &spacemit_sdhci_k1_pdata, sizeof(*sdhst));
+	data = of_device_get_match_data(&pdev->dev);
+
+	host = sdhci_pltfm_init(pdev, data, sizeof(*sdhst));
 	if (IS_ERR(host))
 		return PTR_ERR(host);
 

-- 
2.52.0

Re: [PATCH v2 0/2] mmc: spacemit: Add support for K3 SoC

[Ulf Hansson]

On Thu, 22 Jan 2026 at 10:38, Yixun Lan <dlan@kernel.org> wrote:
>
> Enable SDHCI controller support on new SpacemiT K3 SoC, while as before
> only the third controller and the eMMC device has been tested which using
> vendor K3 evb board. This board has not acquired support in mainline
> kernel, so I've omitted the DT part patches for now.
>
> The new SDHCI controller almost reuse the same IP as old K1 generation,
> while fixed the broken 64BIT DMA issue.
>
> Hi Ulf,
>  Any chance to queue this for v6.20? I know it's a little bit late,
> but the patch itself is quite simple and we've tested on evb board.
>
> Signed-off-by: Yixun Lan <dlan@kernel.org>
> ---
> Changes in v2:
> - collect Rob's Ack
> - drop uncessary blank line
> - drop return check from of_device_get_match_data
> - Link to v1: https://lore.kernel.org/r/20260121-07-k3-mmc-v1-0-ff77c07bfdf6@kernel.org
>
> ---
> Yixun Lan (2):
>       dt-bindings: mmc: spacemit,sdhci: add support for K3 SoC
>       mmc: sdhci-of-k1: spacemit: Add support for K3 SoC
>
>  .../devicetree/bindings/mmc/spacemit,sdhci.yaml       |  4 +++-
>  drivers/mmc/host/sdhci-of-k1.c                        | 19 +++++++++++++++++--
>  2 files changed, 20 insertions(+), 3 deletions(-)
> ---
> base-commit: 6cefff068d030786d63fa50970d6581c354630b2
> change-id: 20260112-07-k3-mmc-6ca01267e834
>
> Best regards,
> --
> Yixun Lan <dlan@kernel.org>
>

The series applied for next, thanks!

Kind regards
Uffe