mips: octeon: Add Octeon III NIC23 board support

This patch adds the basic support for the PCIe target board equipped
with the Octeon III CN2350 SoC.

Signed-off-by: Stefan Roese <sr@denx.de>

3 files changed, 170 insertions, 0 deletions

diff --git a/arch/mips/dts/Makefile b/arch/mips/dts/Makefile
index 7c429231340..215283cfa05 100644
--- a/arch/mips/dts/Makefile
+++ b/arch/mips/dts/Makefile
@@ -20,6 +20,7 @@ dtb-$(CONFIG_BOARD_MT7628_RFB) += mediatek,mt7628-rfb.dtb
 dtb-$(CONFIG_BOARD_GARDENA_SMART_GATEWAY_MT7688) += gardena-smart-gateway-mt7688.dtb
 dtb-$(CONFIG_BOARD_LINKIT_SMART_7688) += linkit-smart-7688.dtb
 dtb-$(CONFIG_TARGET_OCTEON_EBB7304) += mrvl,octeon-ebb7304.dtb
+dtb-$(CONFIG_TARGET_OCTEON_NIC23) += mrvl,octeon-nic23.dtb
 dtb-$(CONFIG_BOARD_NETGEAR_CG3100D) += netgear,cg3100d.dtb
 dtb-$(CONFIG_BOARD_NETGEAR_DGND3700V2) += netgear,dgnd3700v2.dtb
 dtb-$(CONFIG_BOARD_SAGEM_FAST1704) += sagem,f@st1704.dtb
diff --git a/arch/mips/dts/mrvl,octeon-nic23.dts b/arch/mips/dts/mrvl,octeon-nic23.dts
new file mode 100644
index 00000000000..72ef56d834e
--- /dev/null
+++ b/arch/mips/dts/mrvl,octeon-nic23.dts
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Marvell / Cavium Inc. NIC23
+ */
+
+/dts-v1/;
+
+#include "mrvl,cn73xx.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "cavium,nic23";
+	compatible = "cavium,nic23";
+
+	aliases {
+		mmc0 = &mmc0;
+		serial0 = &uart0;
+		spi0 = &spi;
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		/* Power on GPIO 8, active high */
+		reg_mmc_3v3: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "mmc-3v3";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio 8 GPIO_ACTIVE_HIGH>;
+			enable-active-high;
+		};
+	};
+
+	chosen {
+		stdout-path = &uart0;
+	};
+};
+
+&bootbus {
+	/*
+	 * bootbus CS0 for CFI flash is remapped (0x1fc0.0000 -> 1f40.0000)
+	 * as the initial size is too small for the 8MiB flash device
+	 */
+	ranges = <0 0  0       0x1f400000  0xc00000>,
+		 <1 0  0x10000 0x10000000  0>,
+		 <2 0  0x10000 0x20000000  0>,
+		 <3 0  0x10000 0x30000000  0>,
+		 <4 0  0       0x1d020000  0x10000>,
+		 <5 0  0x10000 0x50000000  0>,
+		 <6 0  0x10000 0x60000000  0>,
+		 <7 0  0x10000 0x70000000  0>;
+
+	cavium,cs-config@0 {
+		compatible = "cavium,octeon-3860-bootbus-config";
+		cavium,cs-index = <0>;
+		cavium,t-adr  = <10>;
+		cavium,t-ce   = <50>;
+		cavium,t-oe   = <50>;
+		cavium,t-we   = <35>;
+		cavium,t-rd-hld = <25>;
+		cavium,t-wr-hld = <35>;
+		cavium,t-pause  = <0>;
+		cavium,t-wait   = <50>;
+		cavium,t-page   = <30>;
+		cavium,t-rd-dly = <0>;
+		cavium,page-mode = <1>;
+		cavium,pages     = <8>;
+		cavium,bus-width = <8>;
+	};
+
+	cavium,cs-config@4 {
+		compatible = "cavium,octeon-3860-bootbus-config";
+		cavium,cs-index = <4>;
+		cavium,t-adr  = <10>;
+		cavium,t-ce   = <10>;
+		cavium,t-oe   = <160>;
+		cavium,t-we   = <100>;
+		cavium,t-rd-hld = <10>;
+		cavium,t-wr-hld = <0>;
+		cavium,t-pause  = <50>;
+		cavium,t-wait   = <50>;
+		cavium,t-page   = <10>;
+		cavium,t-rd-dly = <10>;
+		cavium,pages     = <0>;
+		cavium,bus-width = <8>;
+	};
+
+	flash0: nor@0,0 {
+		compatible = "cfi-flash";
+		reg = <0 0 0x800000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		partition@0 {
+			label = "bootloader";
+			reg = <0 0x340000>;
+			read-only;
+		};
+		partition@300000 {
+			label = "storage";
+			reg = <0x340000 0x4be000>;
+		};
+		partition@7fe000 {
+			label = "environment";
+			reg = <0x7fe000 0x2000>;
+			read-only;
+		};
+	};
+};
+
+&uart0 {
+	clock-frequency = <800000000>;
+};
+
+&i2c0 {
+	u-boot,dm-pre-reloc;	/* Needed early for DDR SPD EEPROM */
+	clock-frequency = <100000>;
+};
+
+&i2c1 {
+	u-boot,dm-pre-reloc;	/* Needed early for DDR SPD EEPROM */
+	clock-frequency = <100000>;
+};
+
+&mmc {
+	status = "okay";
+
+	mmc0: mmc-slot@0 {
+		compatible = "cavium,octeon-6130-mmc-slot", "mmc-slot";
+		reg = <0>;
+		vqmmc-supply = <&reg_mmc_3v3>;
+		voltage-ranges = <3300 3300>;
+		spi-max-frequency = <52000000>;
+		/* bus width can be 1, 4 or 8 */
+		bus-width = <8>; /* new std property */
+		cavium,bus-max-width = <8>; /* custom property */
+		non-removable;
+	};
+};
+
+&soc0 {
+	pci-console@0 {
+		compatible = "marvell,pci-console";
+		status = "okay";
+	};
+
+	pci-bootcmd@0 {
+		compatible = "marvell,pci-bootcmd";
+		status = "okay";
+	};
+};
+
+&spi {
+	flash@0 {
+		compatible = "micron,n25q128a11", "jedec,spi-nor";
+		spi-max-frequency = <2000000>;
+		reg = <0>;
+	};
+};
diff --git a/arch/mips/mach-octeon/Kconfig b/arch/mips/mach-octeon/Kconfig
index d69408cc275..624039df253 100644
--- a/arch/mips/mach-octeon/Kconfig
+++ b/arch/mips/mach-octeon/Kconfig
@@ -41,6 +41,12 @@ config TARGET_OCTEON_EBB7304
 	help
 	 Choose this for the Octeon EBB7304 board
 
+config TARGET_OCTEON_NIC23
+	bool "Marvell Octeon NIC23"
+	select OCTEON_CN73XX
+	help
+	 Choose this for the Octeon NIC23 board
+
 endchoice
 
 config SYS_DCACHE_SIZE
@@ -60,5 +66,6 @@ config SYS_PCI_64BIT
 	default y
 
 source "board/Marvell/octeon_ebb7304/Kconfig"
+source "board/Marvell/octeon_nic23/Kconfig"
 
 endmenu