[PATCH] ARM: dts: ixp4xx: Add Omicron device trees

* [PATCH] ARM: dts: ixp4xx: Add Omicron device trees
@ 2021-07-19 12:21 Linus Walleij
  2021-07-19 12:54 ` Baruch Siach
  2021-07-19 17:15 ` Richard Cochran
  0 siblings, 2 replies; 6+ messages in thread
From: Linus Walleij @ 2021-07-19 12:21 UTC (permalink / raw)
  To: linux-arm-kernel, Imre Kaloz, Krzysztof Halasa
  Cc: Linus Walleij, Richard Cochran

This coverts all the Omicron devices found in the Omicron boardfile
to device tree. The Omicron devices board file was added in 2011.

Cc: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
Richard: it would be great if you can test this or at least
sanity check my DTS files so we can migrate the board files.
---
 arch/arm/boot/dts/Makefile                    |   5 +-
 .../boot/dts/intel-ixp42x-omicron-devixp.dts  |  19 +++
 .../boot/dts/intel-ixp42x-omicron-mic256.dts  |  31 +++++
 .../boot/dts/intel-ixp42x-omicron-miccpt.dts  |  62 ++++++++++
 arch/arm/boot/dts/intel-ixp42x-omicron.dtsi   | 114 ++++++++++++++++++
 5 files changed, 230 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/intel-ixp42x-omicron-devixp.dts
 create mode 100644 arch/arm/boot/dts/intel-ixp42x-omicron-mic256.dts
 create mode 100644 arch/arm/boot/dts/intel-ixp42x-omicron-miccpt.dts
 create mode 100644 arch/arm/boot/dts/intel-ixp42x-omicron.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index a8bd0ac4f8ae..1de207f19821 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -244,7 +244,10 @@ dtb-$(CONFIG_ARCH_IXP4XX) += \
 	intel-ixp42x-welltech-epbx100.dtb \
 	intel-ixp42x-iomega-nas100d.dtb \
 	intel-ixp42x-dlink-dsm-g600.dtb \
-	intel-ixp43x-gateworks-gw2358.dtb
+	intel-ixp43x-gateworks-gw2358.dtb \
+	intel-ixp42x-omicron-devixp.dtb \
+	intel-ixp42x-omicron-miccpt.dtb \
+	intel-ixp42x-omicron-mic256.dtb
 dtb-$(CONFIG_ARCH_KEYSTONE) += \
 	keystone-k2hk-evm.dtb \
 	keystone-k2l-evm.dtb \
diff --git a/arch/arm/boot/dts/intel-ixp42x-omicron-devixp.dts b/arch/arm/boot/dts/intel-ixp42x-omicron-devixp.dts
new file mode 100644
index 000000000000..bb984c3a5a38
--- /dev/null
+++ b/arch/arm/boot/dts/intel-ixp42x-omicron-devixp.dts
@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the Omicron DEVIXP IXP425-based development board.
+ */
+
+/dts-v1/;
+
+#include "intel-ixp42x-omicron.dtsi"
+
+/ {
+	model = "Omicron DEVIXP";
+	compatible = "omicron,devixp", "intel,ixp42x";
+
+	memory@0 {
+		/* CHECKME: guessing 64 MB SDRAM */
+		device_type = "memory";
+		reg = <0x00000000 0x4000000>;
+	};
+};
diff --git a/arch/arm/boot/dts/intel-ixp42x-omicron-mic256.dts b/arch/arm/boot/dts/intel-ixp42x-omicron-mic256.dts
new file mode 100644
index 000000000000..cfde0b35c698
--- /dev/null
+++ b/arch/arm/boot/dts/intel-ixp42x-omicron-mic256.dts
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the Omicron MIC256 IXP425-based development board.
+ */
+
+/dts-v1/;
+
+#include "intel-ixp42x-omicron.dtsi"
+
+/ {
+	model = "Omicron MIC256";
+	compatible = "omicron,mic256", "intel,ixp42x";
+
+	memory@0 {
+		/* CHECKME: guessing 64 MB SDRAM */
+		device_type = "memory";
+		reg = <0x00000000 0x4000000>;
+	};
+
+	soc {
+		/* MIC256 has an addition 16MB of flash memory */
+		bus@50000000 {
+			/* The second 16MB region at CS1 on the expansion bus */
+			flash@51000000 {
+				compatible = "intel,ixp4xx-flash", "cfi-flash";
+				bank-width = <2>;
+				reg = <0x51000000 0x1000000>;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/intel-ixp42x-omicron-miccpt.dts b/arch/arm/boot/dts/intel-ixp42x-omicron-miccpt.dts
new file mode 100644
index 000000000000..6fbf4729f89b
--- /dev/null
+++ b/arch/arm/boot/dts/intel-ixp42x-omicron-miccpt.dts
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree file for the Omicron MICCPT IXP425-based development board.
+ */
+
+/dts-v1/;
+
+#include "intel-ixp42x-omicron.dtsi"
+
+/ {
+	model = "Omicron MICCPT";
+	compatible = "omicron,miccpt", "intel,ixp42x";
+
+	memory@0 {
+		/* CHECKME: guessing 64 MB SDRAM */
+		device_type = "memory";
+		reg = <0x00000000 0x4000000>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		led-a {
+			/* CHECKME: no idea what color this really is */
+			label = "miccpt:red:a";
+			gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+			linux,default-trigger = "heartbeat";
+		};
+	};
+
+	soc {
+		pci@c0000000 {
+			status = "ok";
+
+			/*
+			 * Taken from NSLU2 PCI boardfile, INT A, B, C, D swizzled
+			 * We have slots (IDSEL) 1, 2, 3 and 4.
+			 */
+			interrupt-map =
+			/* IDSEL 1 */
+			<0x0800 0 0 1 &gpio0 1 3>, /* INT A on slot 1 is irq 1 */
+			<0x0800 0 0 2 &gpio0 2 3>, /* INT B on slot 1 is irq 2 */
+			<0x0800 0 0 3 &gpio0 3 3>, /* INT C on slot 1 is irq 3 */
+			<0x0800 0 0 4 &gpio0 4 3>, /* INT D on slot 1 is irq 4 */
+			/* IDSEL 2 */
+			<0x1000 0 0 1 &gpio0 2 3>, /* INT A on slot 2 is irq 2 */
+			<0x1000 0 0 2 &gpio0 3 3>, /* INT B on slot 2 is irq 3 */
+			<0x1000 0 0 3 &gpio0 4 3>, /* INT C on slot 2 is irq 4 */
+			<0x1000 0 0 4 &gpio0 1 3>, /* INT D on slot 2 is irq 1 */
+			/* IDSEL 3 */
+			<0x1800 0 0 1 &gpio0 3 3>, /* INT A on slot 3 is irq 3 */
+			<0x1800 0 0 2 &gpio0 4 3>, /* INT B on slot 3 is irq 4 */
+			<0x1800 0 0 3 &gpio0 1 3>, /* INT C on slot 3 is irq 1 */
+			<0x1800 0 0 4 &gpio0 2 3>, /* INT D on slot 3 is irq 2 */
+			/* IDSEL 4 */
+			<0x2000 0 0 1 &gpio0 4 3>, /* INT A on slot 3 is irq 4 */
+			<0x2000 0 0 2 &gpio0 1 3>, /* INT B on slot 3 is irq 2 */
+			<0x2000 0 0 3 &gpio0 2 3>, /* INT C on slot 3 is irq 2 */
+			<0x2000 0 0 4 &gpio0 3 3>; /* INT D on slot 3 is irq 3 */
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/intel-ixp42x-omicron.dtsi b/arch/arm/boot/dts/intel-ixp42x-omicron.dtsi
new file mode 100644
index 000000000000..ef959eb39179
--- /dev/null
+++ b/arch/arm/boot/dts/intel-ixp42x-omicron.dtsi
@@ -0,0 +1,114 @@
+// SPDX-License-Identifier: ISC
+/*
+ * Device Tree include file for Intel IXP42x OMIXP platforms.
+ */
+
+#include "intel-ixp42x.dtsi"
+#include <dt-bindings/input/input.h>
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	memory@0 {
+		/* 64 MB SDRAM */
+		device_type = "memory";
+		reg = <0x00000000 0x4000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 root=/dev/sda1 rw rootwait";
+		stdout-path = "uart1:115200n8";
+	};
+
+	aliases {
+		/* These devices uses UART1 for default console */
+		serial0 = &uart1;
+	};
+
+	soc {
+		bus@50000000 {
+			/* The first 16MB region at CS0 on the expansion bus */
+			flash@0 {
+				compatible = "intel,ixp4xx-flash", "cfi-flash";
+				bank-width = <2>;
+				/*
+				 * 16 MB of Flash in 128 0x20000 sized blocks
+				 * mapped in at CS0.
+				 */
+				reg = <0x00000000 0x1000000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				partition@0 {
+					label = "Recovery Bootloader";
+					reg = <0 0x20000>;
+					read-only;
+				};
+				partition@20000 {
+					label = "Calibration Data";
+					reg = <0x20000 0x20000>;
+					read-only;
+				};
+				partition@40000 {
+					label = "Recovery FPGA";
+					reg = <0x40000 0x20000>;
+					read-only;
+				};
+				partition@60000 {
+					label = "Release Bootloader";
+					reg = <0x60000 0x20000>;
+					read-only;
+				};
+				partition@80000 {
+					label = "Release FPGA";
+					reg = <0x80000 0x20000>;
+					read-only;
+				};
+				partition@a0000 {
+					label = "Kernel";
+					reg = <0xa0000 0x160000>;
+				};
+				partition@200000 {
+					label = "Filesystem";
+					reg = <0x200000 0x200000>;
+				};
+				partition@e00000 {
+					label = "Persistent Storage";
+					reg = <0xe00000 0x200000>;
+				};
+			};
+		};
+
+		/* EthB */
+		ethernet@c8009000 {
+			status = "ok";
+			queue-rx = <&qmgr 3>;
+			queue-txready = <&qmgr 20>;
+			phy-mode = "rgmii";
+			phy-handle = <&phy0>;
+
+			mdio {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				phy0: ethernet-phy@0 {
+					reg = <0>;
+				};
+
+				phy1: ethernet-phy@1 {
+					reg = <1>;
+				};
+			};
+		};
+
+		/* EthC */
+		ethernet@c800a000 {
+			status = "ok";
+			queue-rx = <&qmgr 4>;
+			queue-txready = <&qmgr 21>;
+			phy-mode = "rgmii";
+			phy-handle = <&phy1>;
+		};
+	};
+};
-- 
2.31.1


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