Thread (18 messages) 18 messages, 3 authors, 2022-08-25
STALE1383d

[PATCH 7/8] arm64: dts: ls1028a: sl28: get MAC addresses from VPD

From: Michael Walle <hidden>
Date: 2021-12-28 14:26:33
Also in: linux-devicetree, lkml, netdev
Subsystem: arm/freescale layerscape arm architecture, the rest · Maintainers: Frank Li, Linus Torvalds 

Now that it is finally possible to get the MAC addresses from the OTP
memory, use it to set the addresses of the network devices.

There are 8 reserved MAC addresses in total per board. Distribute them
as follows:

+----------+------+------+------+------+------+
|          | var1 | var2 | var3 | var4 | kbox |
+----------+------+------+------+------+------+
| enetc #0 |   +0 |      |      |   +0 |   +0 |
| enetc #1 |      |      |   +0 |   +1 |   +1 |
| enetc #2 | rand | rand | rand | rand | rand |
| enetc #3 |      |      |      |      |      |
| felix p0 |      |   +0 |      |      |   +4 |
| felix p1 |      |   +1 |      |      |   +5 |
| felix p2 |      |      |      |      |   +6 |
| felix p3 |      |      |      |      |   +7 |
| felix p4 |      |      |      |      |      |
| felix p5 |      |      |      |      |      |
+----------+------+------+------+------+------+

An empty cell means, the port is not available and thus doesn't need an
ethernet address.

Signed-off-by: Michael Walle <redacted>
---
 .../fsl-ls1028a-kontron-kbox-a-230-ls.dts       |  8 ++++++++
 .../freescale/fsl-ls1028a-kontron-sl28-var1.dts |  2 ++
 .../freescale/fsl-ls1028a-kontron-sl28-var2.dts |  4 ++++
 .../freescale/fsl-ls1028a-kontron-sl28-var4.dts |  2 ++
 .../dts/freescale/fsl-ls1028a-kontron-sl28.dts  | 17 +++++++++++++++++
 5 files changed, 33 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-kbox-a-230-ls.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-kbox-a-230-ls.dts
index 0bcf97772995..6f08d3442309 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-kbox-a-230-ls.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-kbox-a-230-ls.dts
@@ -76,6 +76,8 @@ &mscc_felix_port0 {
 	managed = "in-band-status";
 	phy-handle = <&qsgmii_phy0>;
 	phy-mode = "qsgmii";
+	nvmem-cells = <&base_mac_address 4>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 };
 
@@ -84,6 +86,8 @@ &mscc_felix_port1 {
 	managed = "in-band-status";
 	phy-handle = <&qsgmii_phy1>;
 	phy-mode = "qsgmii";
+	nvmem-cells = <&base_mac_address 5>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 };
 
@@ -92,6 +96,8 @@ &mscc_felix_port2 {
 	managed = "in-band-status";
 	phy-handle = <&qsgmii_phy2>;
 	phy-mode = "qsgmii";
+	nvmem-cells = <&base_mac_address 6>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 };
 
@@ -100,6 +106,8 @@ &mscc_felix_port3 {
 	managed = "in-band-status";
 	phy-handle = <&qsgmii_phy3>;
 	phy-mode = "qsgmii";
+	nvmem-cells = <&base_mac_address 7>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var1.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var1.dts
index 7cd29ab970d9..1f34c7553459 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var1.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var1.dts
@@ -55,5 +55,7 @@ &enetc_port0 {
 &enetc_port1 {
 	phy-handle = <&phy0>;
 	phy-mode = "rgmii-id";
+	nvmem-cells = <&base_mac_address 0>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dts
index 330e34f933a3..0ed0d2545922 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var2.dts
@@ -48,6 +48,8 @@ &mscc_felix_port0 {
 	managed = "in-band-status";
 	phy-handle = <&phy0>;
 	phy-mode = "sgmii";
+	nvmem-cells = <&base_mac_address 0>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 };
 
@@ -56,6 +58,8 @@ &mscc_felix_port1 {
 	managed = "in-band-status";
 	phy-handle = <&phy1>;
 	phy-mode = "sgmii";
+	nvmem-cells = <&base_mac_address 1>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts
index 9b5e92fb753e..a4421db3784e 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts
@@ -43,5 +43,7 @@ vddh: vddh-regulator {
 &enetc_port1 {
 	phy-handle = <&phy1>;
 	phy-mode = "rgmii-id";
+	nvmem-cells = <&base_mac_address 1>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts
index 63e005dd5aae..81b5f735d22e 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28.dts
@@ -108,6 +108,8 @@ &enetc_port0 {
 	phy-handle = <&phy0>;
 	phy-mode = "sgmii";
 	managed = "in-band-status";
+	nvmem-cells = <&base_mac_address 0>;
+	nvmem-cell-names = "mac-address";
 	status = "okay";
 };
 
@@ -170,6 +172,21 @@ partition@3e0000 {
 				label = "bootloader environment";
 			};
 		};
+
+		otp-1 {
+			compatible = "kontron,sl28-vpd", "user-otp";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			serial@2 {
+				reg = <2 15>;
+			};
+
+			base_mac_address: base-mac-address@17 {
+				#nvmem-cell-cells = <1>;
+				reg = <17 6>;
+			};
+		};
 	};
 };
 
-- 
2.30.2


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