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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/arc/boot/dts/axc003_idu.dtsi
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arc/boot/dts/axc003_idu.dtsi')
-rw-r--r--arch/arc/boot/dts/axc003_idu.dtsi167
1 files changed, 167 insertions, 0 deletions
diff --git a/arch/arc/boot/dts/axc003_idu.dtsi b/arch/arc/boot/dts/axc003_idu.dtsi
new file mode 100644
index 000000000..67556f4b7
--- /dev/null
+++ b/arch/arc/boot/dts/axc003_idu.dtsi
@@ -0,0 +1,167 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2014, 2015 Synopsys, Inc. (www.synopsys.com)
+ */
+
+/*
+ * Device tree for AXC003 CPU card: HS38x2 (Dual Core) with IDU intc
+ */
+
+/include/ "skeleton_hs_idu.dtsi"
+
+/ {
+ compatible = "snps,arc";
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ cpu_card {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ranges = <0x00000000 0x0 0xf0000000 0x10000000>;
+
+ input_clk: input-clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <33333333>;
+ };
+
+ core_clk: core-clk@80 {
+ compatible = "snps,axs10x-arc-pll-clock";
+ reg = <0x80 0x10>, <0x100 0x10>;
+ #clock-cells = <0>;
+ clocks = <&input_clk>;
+
+ /*
+ * Set initial core pll output frequency to 100MHz.
+ * It will be applied at the core pll driver probing
+ * on early boot.
+ */
+ assigned-clocks = <&core_clk>;
+ assigned-clock-rates = <100000000>;
+ };
+
+ core_intc: archs-intc@cpu {
+ compatible = "snps,archs-intc";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ };
+
+ idu_intc: idu-interrupt-controller {
+ compatible = "snps,archs-idu-intc";
+ interrupt-controller;
+ interrupt-parent = <&core_intc>;
+ #interrupt-cells = <1>;
+ };
+
+ /*
+ * this GPIO block ORs all interrupts on CPU card (creg,..)
+ * to uplink only 1 IRQ to ARC core intc
+ */
+ dw-apb-gpio@2000 {
+ compatible = "snps,dw-apb-gpio";
+ reg = < 0x2000 0x80 >;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ictl_intc: gpio-controller@0 {
+ compatible = "snps,dw-apb-gpio-port";
+ gpio-controller;
+ #gpio-cells = <2>;
+ snps,nr-gpios = <30>;
+ reg = <0>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&idu_intc>;
+ interrupts = <1>;
+ };
+ };
+
+ debug_uart: dw-apb-uart@5000 {
+ compatible = "snps,dw-apb-uart";
+ reg = <0x5000 0x100>;
+ clock-frequency = <33333000>;
+ interrupt-parent = <&ictl_intc>;
+ interrupts = <2 4>;
+ baud = <115200>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ };
+
+ arcpct0: pct {
+ compatible = "snps,archs-pct";
+ #interrupt-cells = <1>;
+ interrupt-parent = <&core_intc>;
+ interrupts = <20>;
+ };
+ };
+
+ /*
+ * Mark DMA peripherals connected via IOC port as dma-coherent. We do
+ * it via overlay because peripherals defined in axs10x_mb.dtsi are
+ * used for both AXS101 and AXS103 boards and only AXS103 has IOC (so
+ * only AXS103 board has HW-coherent DMA peripherals)
+ * We don't need to mark pgu@17000 as dma-coherent because it uses
+ * external DMA buffer located outside of IOC aperture.
+ */
+ axs10x_mb {
+ ethernet@18000 {
+ dma-coherent;
+ };
+
+ usb@40000 {
+ dma-coherent;
+ };
+
+ usb@60000 {
+ dma-coherent;
+ };
+
+ mmc@15000 {
+ dma-coherent;
+ };
+ };
+
+ /*
+ * This INTC is actually connected to DW APB GPIO
+ * which acts as a wire between MB INTC and CPU INTC.
+ * GPIO INTC is configured in platform init code
+ * and here we mimic direct connection from MB INTC to
+ * CPU INTC, thus we set "interrupts = <0 1>" instead of
+ * "interrupts = <12>"
+ *
+ * This intc actually resides on MB, but we move it here to
+ * avoid duplicating the MB dtsi file given that IRQ from
+ * this intc to cpu intc are different for axs101 and axs103
+ */
+ mb_intc: interrupt-controller@e0012000 {
+ #interrupt-cells = <1>;
+ compatible = "snps,dw-apb-ictl";
+ reg = < 0x0 0xe0012000 0x0 0x200 >;
+ interrupt-controller;
+ interrupt-parent = <&idu_intc>;
+ interrupts = <0>;
+ };
+
+ memory {
+ device_type = "memory";
+ /* CONFIG_LINUX_RAM_BASE needs to match low mem start */
+ reg = <0x0 0x80000000 0x0 0x20000000 /* 512 MiB low mem */
+ 0x1 0xc0000000 0x0 0x40000000>; /* 1 GiB highmem */
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+ /*
+ * Move frame buffer out of IOC aperture (0x8z-0xaz).
+ */
+ frame_buffer: frame_buffer@be000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x0 0xbe000000 0x0 0x2000000>;
+ no-map;
+ };
+ };
+};