[PATCH v1 09/12] mips: dts: add EcoNet EN75xx device trees

AK Sharma <[email protected]>
Newsgroups org.u-boot-project.lists.u-boot
Message-ID <[email protected]> 
Add the device trees for the EN7512 and EN7528 reference boards and the
EN7528 RAM-boot variant.

Signed-off-by: AK Sharma <[email protected]>
---
 arch/mips/dts/Makefile                        |   2 +
 .../dts/econet,en7512-reference-u-boot.dtsi   |  58 +++++++
 arch/mips/dts/econet,en7512-reference.dts     |  27 +++
 arch/mips/dts/econet,en7512.dtsi              |  88 ++++++++++
 arch/mips/dts/econet,en7528-ram-u-boot.dtsi   |   6 +
 arch/mips/dts/econet,en7528-ram.dts           |  72 ++++++++
 .../dts/econet,en7528-reference-u-boot.dtsi   |  62 +++++++
 arch/mips/dts/econet,en7528-reference.dts     |  25 +++
 arch/mips/dts/econet,en7528.dtsi              | 164 ++++++++++++++++++
 9 files changed, 504 insertions(+)
 create mode 100644 arch/mips/dts/econet,en7512-reference-u-boot.dtsi
 create mode 100644 arch/mips/dts/econet,en7512-reference.dts
 create mode 100644 arch/mips/dts/econet,en7512.dtsi
 create mode 100644 arch/mips/dts/econet,en7528-ram-u-boot.dtsi
 create mode 100644 arch/mips/dts/econet,en7528-ram.dts
 create mode 100644 arch/mips/dts/econet,en7528-reference-u-boot.dtsi
 create mode 100644 arch/mips/dts/econet,en7528-reference.dts
 create mode 100644 arch/mips/dts/econet,en7528.dtsi

diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
index 7c4ee8b6..3e0347dd 100644
--- a/arch/mips/dts/Makefile
+++ b/arch/mips/dts/Makefile
@@ -6,6 +6,8 @@ dtb-$(CONFIG_TARGET_AP152) += ap152.dtb
 dtb-$(CONFIG_TARGET_MALTA) += mti,malta.dtb
 dtb-$(CONFIG_TARGET_PIC32MZDASK) += pic32mzda_sk.dtb
 dtb-$(CONFIG_TARGET_XILFPGA) += nexys4ddr.dtb
+dtb-$(CONFIG_ARCH_EN75XX) += econet,en7512-reference.dtb \
+	econet,en7528-reference.dtb econet,en7528-ram.dtb
 dtb-$(CONFIG_BOARD_BROADCOM_BCM968380GERG) += brcm,bcm968380gerg.dtb
 dtb-$(CONFIG_BOARD_COMTREND_AR5315U) += comtrend,ar-5315u.dtb
 dtb-$(CONFIG_BOARD_COMTREND_AR5387UN) += comtrend,ar-5387un.dtb
diff --git a/arch/mips/dts/econet,en7512-reference-u-boot.dtsi b/arch/mips/dts/econet,en7512-reference-u-boot.dtsi
new file mode 100644
index 00000000..36d97c26
--- /dev/null
+++ b/arch/mips/dts/econet,en7512-reference-u-boot.dtsi
@@ -0,0 +1,58 @@
+// SPDX-License-Identifier: GPL-2.0+
+#include <linux/stringify.h>
+
+/ {
+	binman: binman {
+		multiple-images;
+	};
+};
+
+&uart0 {
+	bootph-all;
+};
+
+&binman {
+	spl-img {
+		filename = "u-boot-spl.img";
+
+		mkimage {
+			args = "-A", "mips", "-T", "standalone", "-O", "u-boot",
+			       "-C", "none", "-n", "EN7512 U-Boot SPL",
+			       "-a", __stringify(CONFIG_SPL_TEXT_BASE),
+			       "-e", __stringify(CONFIG_SPL_TEXT_BASE);
+
+			u-boot-spl {
+			};
+		};
+	};
+
+	en7512-uboot {
+		filename = "u-boot-en7512.bin";
+		pad-byte = <0xff>;
+
+		u-boot-tpl {
+			offset = <0x00000000>;
+			size = <0x00008000>;
+		};
+
+		ddr-blob {
+			type = "blob-ext";
+			filename = "arch/mips/mach-en75xx/en7512_ddr.bin";
+			offset = <0x00008000>;
+			size = <0x00004f70>;
+		};
+
+		spl {
+			type = "blob";
+			filename = "u-boot-spl.img";
+			offset = <0x00010000>;
+			size = <0x00040000>;
+		};
+
+		u-boot {
+			type = "blob";
+			filename = "u-boot.img";
+			offset = <0x00050000>;
+		};
+	};
+};
diff --git a/arch/mips/dts/econet,en7512-reference.dts b/arch/mips/dts/econet,en7512-reference.dts
new file mode 100644
index 00000000..b8a3aba5
--- /dev/null
+++ b/arch/mips/dts/econet,en7512-reference.dts
@@ -0,0 +1,27 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+#include "econet,en7512.dtsi"
+
+/ {
+	model = "EcoNet EN7512/EN7521 reference board";
+	compatible = "econet,en7512-reference", "econet,en751221",
+		     "econet,en7512";
+
+	aliases {
+		serial0 = &uart0;
+		ethernet0 = &gmac0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&sfc {
+	status = "okay";
+};
diff --git a/arch/mips/dts/econet,en7512.dtsi b/arch/mips/dts/econet,en7512.dtsi
new file mode 100644
index 00000000..0f13159d
--- /dev/null
+++ b/arch/mips/dts/econet,en7512.dtsi
@@ -0,0 +1,88 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			compatible = "mips,mips34Kc";
+			device_type = "cpu";
+			reg = <0>;
+		};
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00000000 0x08000000>;
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		syscon: syscon@1fb00000 {
+			compatible = "econet,en7512-syscon", "syscon";
+			reg = <0x1fb00000 0x1000>;
+		};
+
+		sfc: spi@1fa10000 {
+			compatible = "airoha,en7523-spi";
+			reg = <0x1fa10000 0x140>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+
+			spi_nand: nand@0 {
+				compatible = "spi-nand";
+				reg = <0>;
+				spi-max-frequency = <20000000>;
+				spi-tx-bus-width = <1>;
+				spi-rx-bus-width = <2>;
+			};
+		};
+
+		sram@1fa30000 {
+			compatible = "mmio-sram";
+			reg = <0x1fa30000 0xc000>;
+		};
+
+		dramc: memory-controller@1fb20000 {
+			compatible = "econet,en7512-dramc";
+			reg = <0x1fb20000 0x1000>;
+		};
+
+		ethernet: ethernet@1fb50000 {
+			compatible = "econet,en751221-eth";
+			reg = <0x1fb50000 0x4000>,
+			      <0x1fb54000 0x1000>;
+			reg-names = "fe", "qdma0";
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			gmac0: mac@0 {
+				compatible = "econet,eth-mac";
+				reg = <0>;
+				phy-mode = "trgmii";
+			};
+		};
+
+		switch0: switch@1fb58000 {
+			compatible = "mediatek,mt7530";
+			reg = <0x1fb58000 0x8000>;
+		};
+
+		uart0: serial@1fbf0000 {
+			compatible = "econet,en7512-uart";
+			reg = <0x1fbf0000 0x30>;
+			clock-frequency = <20000000>;
+			current-speed = <115200>;
+			status = "disabled";
+		};
+	};
+};
diff --git a/arch/mips/dts/econet,en7528-ram-u-boot.dtsi b/arch/mips/dts/econet,en7528-ram-u-boot.dtsi
new file mode 100644
index 00000000..94512540
--- /dev/null
+++ b/arch/mips/dts/econet,en7528-ram-u-boot.dtsi
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* RAM-boot: no binman image; just make the console available pre-relocation. */
+
+&uart0 {
+	bootph-all;
+};
diff --git a/arch/mips/dts/econet,en7528-ram.dts b/arch/mips/dts/econet,en7528-ram.dts
new file mode 100644
index 00000000..0c5a59fb
--- /dev/null
+++ b/arch/mips/dts/econet,en7528-ram.dts
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+#include "econet,en7528.dtsi"
+
+/ {
+	model = "EcoNet EN7528 RAM-boot (bootbase-loaded)";
+	compatible = "econet,en7528-ram", "econet,en7528";
+
+	aliases {
+		serial0 = &uart0;
+		ethernet0 = &gmac0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&sfc {
+	status = "okay";
+};
+
+&ethernet {
+	status = "okay";
+};
+
+&switch0 {
+	status = "okay";
+};
+
+&usb {
+	status = "okay";
+};
+
+/* R3-hook map (harmless on RAM-boot: extra labels on spi-nand0). */
+&spi_nand {
+	partitions {
+		compatible = "fixed-partitions";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "bootloader";
+			reg = <0x0 0x40000>;
+		};
+		partition@40000 {
+			label = "uboot";
+			reg = <0x40000 0x80000>;
+		};
+		partition@c0000 {
+			label = "ubootenv";
+			reg = <0xc0000 0x20000>;
+		};
+		partition@e0000 {
+			label = "ubootenv2";
+			reg = <0xe0000 0x20000>;
+		};
+		partition@100000 {
+			label = "kernel";
+			reg = <0x100000 0x1000000>;
+		};
+		partition@1100000 {
+			label = "rootfs";
+			reg = <0x1100000 0xda80000>;
+		};
+	};
+};
diff --git a/arch/mips/dts/econet,en7528-reference-u-boot.dtsi b/arch/mips/dts/econet,en7528-reference-u-boot.dtsi
new file mode 100644
index 00000000..f0ded2b0
--- /dev/null
+++ b/arch/mips/dts/econet,en7528-reference-u-boot.dtsi
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0+
+#include <linux/stringify.h>
+
+/ {
+	binman: binman {
+		multiple-images;
+	};
+};
+
+&uart0 {
+	bootph-all;
+};
+
+&binman {
+	spl-img {
+		filename = "u-boot-spl.img";
+
+		mkimage {
+			args = "-A", "mips", "-T", "standalone", "-O", "u-boot",
+			       "-C", "none", "-n", "EN7528 U-Boot SPL",
+			       "-a", __stringify(CONFIG_SPL_TEXT_BASE),
+			       "-e", __stringify(CONFIG_SPL_TEXT_BASE);
+
+			u-boot-spl {
+			};
+		};
+	};
+
+	en7528-uboot {
+		filename = "u-boot-en7528.bin";
+		pad-byte = <0xff>;
+
+		u-boot-tpl {
+			offset = <0x00000000>;
+			size = <0x00008000>;
+		};
+
+		/*
+		 * en7528_ddr.bin is the 0x5a70-byte FE-SRAM DDR3 stage (JCOW407 V1.6) lifted
+		 * from the stock bootbase (see doc/board/econet/en7528-porting.md).
+		 */
+		ddr-blob {
+			type = "blob-ext";
+			filename = "arch/mips/mach-en75xx/en7528_ddr.bin";
+			offset = <0x00008000>;
+			size = <0x00005a70>;
+		};
+
+		spl {
+			type = "blob";
+			filename = "u-boot-spl.img";
+			offset = <0x00020000>;
+			size = <0x00030000>;
+		};
+
+		u-boot {
+			type = "blob";
+			filename = "u-boot.img";
+			offset = <0x00050000>;
+		};
+	};
+};
diff --git a/arch/mips/dts/econet,en7528-reference.dts b/arch/mips/dts/econet,en7528-reference.dts
new file mode 100644
index 00000000..d029f41c
--- /dev/null
+++ b/arch/mips/dts/econet,en7528-reference.dts
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0+
+/dts-v1/;
+
+#include "econet,en7528.dtsi"
+
+/ {
+	model = "EcoNet EN7528 reference board (DASAN H660GM-A)";
+	compatible = "econet,en7528-reference", "econet,en7528";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
+
+&sfc {
+	status = "okay";
+};
diff --git a/arch/mips/dts/econet,en7528.dtsi b/arch/mips/dts/econet,en7528.dtsi
new file mode 100644
index 00000000..b8b4668b
--- /dev/null
+++ b/arch/mips/dts/econet,en7528.dtsi
@@ -0,0 +1,164 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* EcoNet/Airoha EN7528 (MIPS 1004Kc, little-endian) */
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			compatible = "mips,mips1004Kc";
+			device_type = "cpu";
+			reg = <0>;
+		};
+
+		cpu@1 {
+			compatible = "mips,mips1004Kc";
+			device_type = "cpu";
+			reg = <1>;
+		};
+	};
+
+	memory@0 {
+		device_type = "memory";
+		/* Capped below the 0x1fxxxxxx MMIO island; DDR stage
+		 * publishes the true size at runtime (dram_init). */
+		reg = <0x00000000 0x10000000>;
+	};
+
+	/* Dummy clock/phy so xhci-mtk's mandatory clk_get_bulk()/
+	 * generic_phy_get_bulk() succeed without an en7528 SCU clock or
+	 * T-PHY driver; the real USB clock is left ungated by the bootbase
+	 * and the xHCI IPPC block does the port power-up. */
+	usb_clk: usb-clk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+	};
+
+	usb_phy: usb-phy {
+		compatible = "nop-phy";
+		#phy-cells = <0>;
+		clocks = <&usb_clk>;	/* nop_phy_probe() calls clk_get_bulk() */
+	};
+
+	soc {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		syscon: syscon@1fb00000 {
+			compatible = "econet,en7528-syscon", "syscon";
+			reg = <0x1fb00000 0x1000>;
+		};
+
+		sfc: spi@1fa10000 {
+			compatible = "airoha,en7581-snand";
+			reg = <0x1fa10000 0x140>,
+			      <0x1fa11000 0x1000>;	/* NFI: driver uses up to 0x55c;
+							 * U-Boot regmap range-checks (Linux
+							 * gets a full page from ioremap). */
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+
+			spi_nand: nand@0 {
+				compatible = "spi-nand";
+				reg = <0>;
+				spi-max-frequency = <20000000>;
+				spi-tx-bus-width = <1>;
+				spi-rx-bus-width = <2>;
+
+				/* Vendor bad-block remapping. bbt-table-size is a
+				 * per-board constant: EN7528 uses 250, not the 1000
+				 * default, and a wrong value fails the BBT checksum.
+				 * assert-reserve-size must match the pool size the
+				 * bootbase prints ("bmt pool size: 163").
+				 */
+				econet,bmt;
+				econet,bbt-table-size = <250>;
+				econet,assert-reserve-size = <163>;
+			};
+		};
+
+		sram@1fa30000 {
+			compatible = "mmio-sram";
+			reg = <0x1fa30000 0x20000>;
+		};
+
+		dramc: memory-controller@1fb20000 {
+			compatible = "econet,en7528-dramc";
+			reg = <0x1fb20000 0x1000>;
+		};
+
+		/*
+		 * EN7528 Ethernet = same EN751221-family FE/QDMA as the EN7512,
+		 * feeding an MT7530-family DSA switch (GMAC0 -> switch CPU port).
+		 * The airoha_eth U-Boot driver binds "econet,en751221-eth" and
+		 * self-initializes the "mediatek,mt7530" switch.
+		 */
+		ethernet: ethernet@1fb50000 {
+			compatible = "econet,en751221-eth";
+			reg = <0x1fb50000 0x4000>,
+			      <0x1fb54000 0x1000>;
+			reg-names = "fe", "qdma0";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+
+			gmac0: mac@0 {
+				compatible = "econet,eth-mac";
+				reg = <0>;
+				phy-mode = "trgmii";
+			};
+		};
+
+		switch0: switch@1fb58000 {
+			compatible = "mediatek,mt7530";
+			reg = <0x1fb58000 0x8000>;
+			status = "disabled";
+		};
+
+		/*
+		 * USB3 host = MediaTek xHCI (same IP as mt8173), driven by
+		 * U-Boot's xhci-mtk. "mac" is the xHCI MMIO, "ippc" the IP port
+		 * control block (a sub-region of the USB T-PHY window). The
+		 * en7528 USB clock is ungated by the bootbase (the kernel node
+		 * carries no clocks either) so &usb_clk is a dummy fixed-clock
+		 * to satisfy clk_get_bulk(); &usb_phy is a nop-phy (the xHCI
+		 * IPPC block powers the ports up itself). USB reset/PHY-reset are
+		 * released by a direct SCU poke in board_late_init (there is no
+		 * DM reset provider in this port — see board.c).
+		 */
+		usb: usb@1fb90000 {
+			compatible = "mediatek,mtk-xhci";
+			reg = <0x1fb90000 0x4000>,
+			      <0x1fa80700 0x100>;
+			reg-names = "mac", "ippc";
+			clocks = <&usb_clk>;
+			phys = <&usb_phy>;
+			/*
+			 * USB2-only: the U3/SerDes path needs SCU/serdes config
+			 * we don't do, and leaving U3 enabled makes xhci-mtk stall
+			 * on an unstable U3 clock (per the Airoha AN7581 USB PHY
+			 * commit). Disable both U3 ports so only USB2 is brought up.
+			 */
+			mediatek,u3p-dis-msk = <0x3>;
+			status = "disabled";
+		};
+
+		uart0: serial@1fbf0000 {
+			compatible = "econet,en7528-uart";
+			reg = <0x1fbf0000 0x30>;
+			reg-io-width = <4>;
+			reg-shift = <2>;
+			clock-frequency = <2000000>;
+			current-speed = <115200>;
+			status = "disabled";
+		};
+	};
+};
-- 
2.53.0
lmpx.com only provides a reader for public news (NNTP) servers. It is not affiliated with the servers or forums shown here and is not responsible for the content of articles, which is written by their respective authors.