linux-kernel - [PATCH 2/2] ARM: dts: samsung: smdk5250: add sromc node

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Message-Id: <20250904-smdk5250-sromc-v1-2-b360c6ab01c6@grimler.se>
Date: Thu, 04 Sep 2025 08:10:11 +0200
From: Henrik Grimler <henrik@...mler.se>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Henrik Grimler <henrik@...mler.se>
Subject: [PATCH 2/2] ARM: dts: samsung: smdk5250: add sromc node

The smdk5250 board has an ethernet port which is connected to bank 1
of the SROM controller. Describe it.

Signed-off-by: Henrik Grimler <henrik@...mler.se>
---
 arch/arm/boot/dts/samsung/exynos5250-smdk5250.dts | 37 +++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/samsung/exynos5250-smdk5250.dts b/arch/arm/boot/dts/samsung/exynos5250-smdk5250.dts
index bb623726ef1e614c50074ec2890072b2b37d212e..6af1f64c984ba6e8344d759d2feb7fbfa320d81f 100644
--- a/arch/arm/boot/dts/samsung/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/samsung/exynos5250-smdk5250.dts
@@ -422,6 +422,43 @@ max77686_irq: max77686-irq-pins {
 		samsung,pin-pud = <EXYNOS_PIN_PULL_NONE>;
 		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
 	};
+
+	srom_ctl: srom-ctl-pins {
+		samsung,pins = "gpy0-3", "gpy0-4", "gpy0-5",
+			       "gpy1-0", "gpy1-1", "gpy1-2", "gpy1-3";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+
+	srom_ebi: srom-ebi-pins {
+		samsung,pins = "gpy3-0", "gpy3-1", "gpy3-2", "gpy3-3",
+			       "gpy3-4", "gpy3-5", "gpy3-6", "gpy3-7",
+			       "gpy5-0", "gpy5-1", "gpy5-2", "gpy5-3",
+			       "gpy5-4", "gpy5-5", "gpy5-6", "gpy5-7",
+			       "gpy6-0", "gpy6-1", "gpy6-2", "gpy6-3",
+			       "gpy6-4", "gpy6-5", "gpy6-6", "gpy6-7";
+		samsung,pin-function = <EXYNOS_PIN_FUNC_2>;
+		samsung,pin-pud = <EXYNOS_PIN_PULL_UP>;
+		samsung,pin-drv = <EXYNOS4_PIN_DRV_LV1>;
+	};
+};
+
+&sromc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&srom_ctl>, <&srom_ebi>;
+
+	ethernet@1,0 {
+		compatible = "smsc,lan9115";
+		reg = <1 0 0x100>;
+		phy-mode = "mii";
+		smsc,irq-push-pull;
+		interrupt-parent = <&gpx0>;
+		interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
+		reg-io-width = <2>;
+
+		samsung,srom-page-mode;
+		samsung,srom-timing = <9 12 1 6 1 1>;
+	};
 };
 
 &usbdrd {

-- 
2.51.0