[PATCH v6 06/17] dt-bindings: net: sun8i-emac: Add H616 compatible string

[PATCH v6 06/17] dt-bindings: net: sun8i-emac: Add H616 compatible string

[Andre Przywara]

Add the obvious compatible name to the existing EMAC binding, and pair
it with the existing A64 fallback compatible string, as the devices are
compatible.

On the way use enums to group the compatible devices together.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 .../devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml b/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
index 7f2578d48e3f..0ccdab103f59 100644
--- a/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
+++ b/Documentation/devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml
@@ -19,7 +19,9 @@ properties:
       - const: allwinner,sun8i-v3s-emac
       - const: allwinner,sun50i-a64-emac
       - items:
-          - const: allwinner,sun50i-h6-emac
+          - enum:
+              - allwinner,sun50i-h6-emac
+              - allwinner,sun50i-h616-emac
           - const: allwinner,sun50i-a64-emac
 
   reg:
-- 
2.17.5

Re: [PATCH v6 06/17] dt-bindings: net: sun8i-emac: Add H616 compatible string

[Rob Herring]

On Wed, 19 May 2021 11:41:41 +0100, Andre Przywara wrote:
> Add the obvious compatible name to the existing EMAC binding, and pair
> it with the existing A64 fallback compatible string, as the devices are
> compatible.
> 
> On the way use enums to group the compatible devices together.
> 
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> ---
>  .../devicetree/bindings/net/allwinner,sun8i-a83t-emac.yaml    | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 

Acked-by: Rob Herring <robh@kernel.org>

[PATCH v6 07/17] net: stmmac: dwmac-sun8i: Prepare for second EMAC clock register

[Andre Przywara]

The Allwinner H616 SoC has two EMAC controllers, with the second one
being tied to the internal PHY, but also using a separate EMAC clock
register.

To tell the driver about which clock register to use, we add a parameter
to our syscon phandle. The driver will use this value as an index into
the regmap, so that we can address more than the first register, if
needed.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index 4422baeed3d8..5f3fefd9a74e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -1147,11 +1147,13 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
 	struct stmmac_resources stmmac_res;
 	struct sunxi_priv_data *gmac;
 	struct device *dev = &pdev->dev;
+	struct reg_field syscon_field;
 	phy_interface_t interface;
 	int ret;
 	struct stmmac_priv *priv;
 	struct net_device *ndev;
 	struct regmap *regmap;
+	u32 syscon_idx = 0;
 
 	ret = stmmac_get_platform_resources(pdev, &stmmac_res);
 	if (ret)
@@ -1209,8 +1211,12 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	gmac->regmap_field = devm_regmap_field_alloc(dev, regmap,
-						     *gmac->variant->syscon_field);
+	syscon_field = *gmac->variant->syscon_field;
+	ret = of_property_read_u32_index(pdev->dev.of_node, "syscon", 1,
+					 &syscon_idx);
+	if (!ret)
+		syscon_field.reg += syscon_idx * sizeof(u32);
+	gmac->regmap_field = devm_regmap_field_alloc(dev, regmap, syscon_field);
 	if (IS_ERR(gmac->regmap_field)) {
 		ret = PTR_ERR(gmac->regmap_field);
 		dev_err(dev, "Unable to map syscon register: %d\n", ret);
@@ -1330,6 +1336,8 @@ static const struct of_device_id sun8i_dwmac_match[] = {
 		.data = &emac_variant_a64 },
 	{ .compatible = "allwinner,sun50i-h6-emac",
 		.data = &emac_variant_h6 },
+	{ .compatible = "allwinner,sun50i-h616-emac",
+		.data = &emac_variant_h6 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, sun8i_dwmac_match);
-- 
2.17.5