ARM: dts: mvebu: Add CRS328-4C-20S-4S board

MikroTik CRS328-4C-20S-4S board has a switch chip with an integrated
Marvell Prestera 98DX3236 CPU.

This commit includes two board variants, namely the factory
default one and a Bit variant. The Bit variant has a
bigger Macronix flash.

This device tree includes basic Linux support.

Signed-off-by: Luka Kovacic <luka.kovacic@sartura.hr>
Cc: Luka Perkov <luka.perkov@sartura.hr>
Cc: Jakov Petrina <jakov.petrina@sartura.hr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 8d171ac..a89548e 100644 (file)
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -1344,6 +1344,8 @@ dtb-$(CONFIG_MACH_ARMADA_XP) += \
        armada-xp-crs305-1g-4s-bit.dtb \
        armada-xp-crs326-24g-2s.dtb \
        armada-xp-crs326-24g-2s-bit.dtb \
+       armada-xp-crs328-4c-20s-4s.dtb \
+       armada-xp-crs328-4c-20s-4s-bit.dtb \
        armada-xp-db.dtb \
        armada-xp-db-dxbc2.dtb \
        armada-xp-db-xc3-24g4xg.dtb \

diff --git a/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s-bit.dts b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s-bit.dts
new file mode 100644 (file)
index 0000000..e05aee6
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s-bit.dts
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for MikroTik CRS328-4C-20S-4S+ Bit board
+ *
+ * Copyright (C) 2020 Sartura Ltd.
+ * Author: Luka Kovacic <luka.kovacic@sartura.hr>
+ */
+
+#include "armada-xp-crs328-4c-20s-4s.dtsi"
+
+/ {
+       model = "MikroTik CRS328-4C-20S-4S+ Bit";
+};
+
+&spi0 {
+       status = "okay";
+
+       spi-flash@0 {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "jedec,spi-nor";
+               reg = <0>; /* Chip select 0 */
+               spi-max-frequency = <108000000>;
+               m25p,fast-read;
+
+               partition@u-boot {
+                       reg = <0x00000000 0x001f0000>;
+                       label = "u-boot";
+               };
+               partition@u-boot-env {
+                       reg = <0x001f0000 0x00010000>;
+                       label = "u-boot-env";
+               };
+               partition@ubi1 {
+                       reg = <0x00200000 0x03f00000>;
+                       label = "ubi1";
+               };
+               partition@ubi2 {
+                       reg = <0x04100000 0x03f00000>;
+                       label = "ubi2";
+               };
+       };
+};

diff --git a/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dts b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dts
new file mode 100644 (file)
index 0000000..665757f
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dts
@@ -0,0 +1,17 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for MikroTik CRS328-4C-20S-4S+ board
+ *
+ * Copyright (C) 2020 Sartura Ltd.
+ * Author: Luka Kovacic <luka.kovacic@sartura.hr>
+ */
+
+#include "armada-xp-crs328-4c-20s-4s.dtsi"
+
+/ {
+       model = "MikroTik CRS328-4C-20S-4S+";
+};
+
+&spi0 {
+       status = "okay";
+};

diff --git a/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dtsi b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dtsi
new file mode 100644 (file)
index 0000000..c8b1355
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-crs328-4c-20s-4s.dtsi
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for CRS328-4C-20S-4S+ board
+ *
+ * Copyright (C) 2016 Allied Telesis Labs
+ * Copyright (C) 2020 Sartura Ltd.
+ *
+ * Based on armada-xp-db.dts
+ *
+ * Note: this Device Tree assumes that the bootloader has remapped the
+ * internal registers to 0xf1000000 (instead of the default
+ * 0xd0000000). The 0xf1000000 is the default used by the recent,
+ * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
+ * boards were delivered with an older version of the bootloader that
+ * left internal registers mapped at 0xd0000000. If you are in this
+ * situation, you should either update your bootloader (preferred
+ * solution) or the below Device Tree should be adjusted.
+ */
+
+/dts-v1/;
+#include "armada-xp-98dx3236.dtsi"
+
+/ {
+       model = "CRS328-4C-20S-4S+";
+       compatible = "mikrotik,crs328-4c-20s-4s", "marvell,armadaxp-98dx3236", "marvell,armada-370-xp";
+
+       chosen {
+               bootargs = "console=ttyS0,115200 earlyprintk";
+       };
+
+       memory {
+               device_type = "memory";
+               reg = <0 0x00000000 0 0x20000000>; /* 512 MB */
+       };
+};
+
+&L2 {
+       arm,parity-enable;
+       marvell,ecc-enable;
+};
+
+&devbus_bootcs {
+       status = "okay";
+
+       /* Device Bus parameters are required */
+
+       /* Read parameters */
+       devbus,bus-width    = <16>;
+       devbus,turn-off-ps  = <60000>;
+       devbus,badr-skew-ps = <0>;
+       devbus,acc-first-ps = <124000>;
+       devbus,acc-next-ps  = <248000>;
+       devbus,rd-setup-ps  = <0>;
+       devbus,rd-hold-ps   = <0>;
+
+       /* Write parameters */
+       devbus,sync-enable = <0>;
+       devbus,wr-high-ps  = <60000>;
+       devbus,wr-low-ps   = <60000>;
+       devbus,ale-wr-ps   = <60000>;
+};
+
+&uart0 {
+       status = "okay";
+};
+
+&uart1 {
+       status = "okay";
+};
+
+&i2c0 {
+       clock-frequency = <100000>;
+       status = "okay";
+};
+
+&usb0 {
+       status = "okay";
+};
+
+&spi0 {
+       status = "okay";
+
+       spi-flash@0 {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "jedec,spi-nor";
+               reg = <0>; /* Chip select 0 */
+               spi-max-frequency = <108000000>;
+               m25p,fast-read;
+
+               partition@u-boot {
+                       reg = <0x00000000 0x001f0000>;
+                       label = "u-boot";
+               };
+               partition@u-boot-env {
+                       reg = <0x001f0000 0x00010000>;
+                       label = "u-boot-env";
+               };
+               partition@ubi1 {
+                       reg = <0x00200000 0x00e00000>;
+                       label = "ubi1";
+               };
+       };
+};