On Wed, 28 Oct 2020 16:27:58 PDT (-0700), Atish Patra wrote:
Add initial DTS for Microchip ICICLE board having only
essential devcies (clocks, sdhci, ethernet, serial, etc).

This fails `make dtbs_check`.  The fu540 fails too, so I guess it's not exactly
fair, though.


Signed-off-by: Atish Patra <atish.pa...@wdc.com>
---
 arch/riscv/boot/dts/Makefile                  |   1 +
 arch/riscv/boot/dts/microchip/Makefile        |   2 +
 .../microchip/microchip-icicle-kit-a000.dts   | 313 ++++++++++++++++++
 3 files changed, 316 insertions(+)
 create mode 100644 arch/riscv/boot/dts/microchip/Makefile
 create mode 100644 arch/riscv/boot/dts/microchip/microchip-icicle-kit-a000.dts

diff --git a/arch/riscv/boot/dts/Makefile b/arch/riscv/boot/dts/Makefile
index ca1f8cbd78c0..3ea94ea0a18a 100644
--- a/arch/riscv/boot/dts/Makefile
+++ b/arch/riscv/boot/dts/Makefile
@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
 subdir-y += sifive
 subdir-y += kendryte
+subdir-y += microchip

 obj-$(CONFIG_BUILTIN_DTB) := $(addsuffix /, $(subdir-y))
diff --git a/arch/riscv/boot/dts/microchip/Makefile 
b/arch/riscv/boot/dts/microchip/Makefile
new file mode 100644
index 000000000000..55ad77521304
--- /dev/null
+++ b/arch/riscv/boot/dts/microchip/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+dtb-$(CONFIG_SOC_MICROCHIP_POLARFIRE) += microchip-icicle-kit-a000.dtb
diff --git a/arch/riscv/boot/dts/microchip/microchip-icicle-kit-a000.dts 
b/arch/riscv/boot/dts/microchip/microchip-icicle-kit-a000.dts
new file mode 100644
index 000000000000..5848920af55c
--- /dev/null
+++ b/arch/riscv/boot/dts/microchip/microchip-icicle-kit-a000.dts
@@ -0,0 +1,313 @@
+// SPDX-License-Identifier: GPL-2.0+
+/* Copyright (c) 2020 Microchip Technology Inc */
+
+/dts-v1/;
+
+/* Clock frequency (in Hz) of the rtcclk */
+#define RTCCLK_FREQ            1000000
+
+/ {
+       #address-cells = <2>;
+       #size-cells = <2>;
+       model = "Microchip PolarFire-SoC";
+       compatible = "microchip,polarfire-soc";
+
+       chosen {
+               stdout-path = &serial0;
+       };
+
+       cpus {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               timebase-frequency = <RTCCLK_FREQ>;
+
+               cpu@0 {
+                       clock-frequency = <0>;
+                       compatible = "sifive,rocket0", "riscv";
+                       device_type = "cpu";
+                       i-cache-block-size = <64>;
+                       i-cache-sets = <128>;
+                       i-cache-size = <16384>;
+                       reg = <0>;
+                       riscv,isa = "rv64imac";
+                       status = "disabled";
+
+                       cpu0_intc: interrupt-controller {
+                               #interrupt-cells = <1>;
+                               compatible = "riscv,cpu-intc";
+                               interrupt-controller;
+                       };
+               };
+
+               cpu@1 {
+                       clock-frequency = <0>;
+                       compatible = "sifive,rocket0", "riscv";
+                       d-cache-block-size = <64>;
+                       d-cache-sets = <64>;
+                       d-cache-size = <32768>;
+                       d-tlb-sets = <1>;
+                       d-tlb-size = <32>;
+                       device_type = "cpu";
+                       i-cache-block-size = <64>;
+                       i-cache-sets = <64>;
+                       i-cache-size = <32768>;
+                       i-tlb-sets = <1>;
+                       i-tlb-size = <32>;
+                       mmu-type = "riscv,sv39";
+                       reg = <1>;
+                       riscv,isa = "rv64imafdc";
+                       tlb-split;
+                       status = "okay";
+
+                       cpu1_intc: interrupt-controller {
+                               #interrupt-cells = <1>;
+                               compatible = "riscv,cpu-intc";
+                               interrupt-controller;
+                       };
+               };
+
+               cpu@2 {
+                       clock-frequency = <0>;
+                       compatible = "sifive,rocket0", "riscv";
+                       d-cache-block-size = <64>;
+                       d-cache-sets = <64>;
+                       d-cache-size = <32768>;
+                       d-tlb-sets = <1>;
+                       d-tlb-size = <32>;
+                       device_type = "cpu";
+                       i-cache-block-size = <64>;
+                       i-cache-sets = <64>;
+                       i-cache-size = <32768>;
+                       i-tlb-sets = <1>;
+                       i-tlb-size = <32>;
+                       mmu-type = "riscv,sv39";
+                       reg = <2>;
+                       riscv,isa = "rv64imafdc";
+                       tlb-split;
+                       status = "okay";
+
+                       cpu2_intc: interrupt-controller {
+                               #interrupt-cells = <1>;
+                               compatible = "riscv,cpu-intc";
+                               interrupt-controller;
+                       };
+               };
+
+               cpu@3 {
+                       clock-frequency = <0>;
+                       compatible = "sifive,rocket0", "riscv";
+                       d-cache-block-size = <64>;
+                       d-cache-sets = <64>;
+                       d-cache-size = <32768>;
+                       d-tlb-sets = <1>;
+                       d-tlb-size = <32>;
+                       device_type = "cpu";
+                       i-cache-block-size = <64>;
+                       i-cache-sets = <64>;
+                       i-cache-size = <32768>;
+                       i-tlb-sets = <1>;
+                       i-tlb-size = <32>;
+                       mmu-type = "riscv,sv39";
+                       reg = <3>;
+                       riscv,isa = "rv64imafdc";
+                       tlb-split;
+                       status = "okay";
+
+                       cpu3_intc: interrupt-controller {
+                               #interrupt-cells = <1>;
+                               compatible = "riscv,cpu-intc";
+                               interrupt-controller;
+                       };
+               };
+
+               cpu@4 {
+                       clock-frequency = <0>;
+                       compatible = "sifive,rocket0", "riscv";
+                       d-cache-block-size = <64>;
+                       d-cache-sets = <64>;
+                       d-cache-size = <32768>;
+                       d-tlb-sets = <1>;
+                       d-tlb-size = <32>;
+                       device_type = "cpu";
+                       i-cache-block-size = <64>;
+                       i-cache-sets = <64>;
+                       i-cache-size = <32768>;
+                       i-tlb-sets = <1>;
+                       i-tlb-size = <32>;
+                       mmu-type = "riscv,sv39";
+                       reg = <4>;
+                       riscv,isa = "rv64imafdc";
+                       tlb-split;
+                       status = "okay";
+                       cpu4_intc: interrupt-controller {
+                               #interrupt-cells = <1>;
+                               compatible = "riscv,cpu-intc";
+                               interrupt-controller;
+                       };
+               };
+       };
+
+       memory@80000000 {
+               device_type = "memory";
+               reg = <0x0 0x80000000 0x0 0x40000000>;
+               clocks = <&clkcfg 26>;
+       };
+
+       soc {
+               #address-cells = <2>;
+               #size-cells = <2>;
+               compatible = "simple-bus";
+               ranges;
+
+               cache-controller@2010000 {
+                       compatible = "sifive,fu540-c000-ccache", "cache";
+                       cache-block-size = <64>;
+                       cache-level = <2>;
+                       cache-sets = <1024>;
+                       cache-size = <2097152>;
+                       cache-unified;
+                       interrupt-parent = <&plic>;
+                       interrupts = <1 2 3>;
+                       reg = <0x0 0x2010000 0x0 0x1000>;
+               };
+
+               clint@2000000 {
+                       compatible = "riscv,clint0";
+                       reg = <0x0 0x2000000 0x0 0xC000>;
+                       interrupts-extended = <&cpu0_intc 3 &cpu0_intc 7
+                                               &cpu1_intc 3 &cpu1_intc 7
+                                               &cpu2_intc 3 &cpu2_intc 7
+                                               &cpu3_intc 3 &cpu3_intc 7
+                                               &cpu4_intc 3 &cpu4_intc 7>;
+               };
+
+               plic: interrupt-controller@c000000 {
+                       #interrupt-cells = <1>;
+                       compatible = "sifive,plic-1.0.0";
+                       reg = <0x0 0xc000000 0x0 0x4000000>;
+                       riscv,ndev = <53>;
+                       interrupt-controller;
+                       interrupts-extended = <&cpu0_intc 11
+                                       &cpu1_intc 11 &cpu1_intc 9
+                                       &cpu2_intc 11 &cpu2_intc 9
+                                       &cpu3_intc 11 &cpu3_intc 9
+                                       &cpu4_intc 11 &cpu4_intc 9>;
+               };
+
+               dma@3000000 {
+                       compatible = "sifive,fu540-c000-pdma";
+                       reg = <0x0 0x3000000 0x0 0x8000>;
+                       interrupt-parent = <&plic>;
+                       interrupts = <23 24 25 26 27 28 29 30>;
+                       #dma-cells = <1>;
+               };
+
+               refclk: refclk {
+                       compatible = "fixed-clock";
+                       #clock-cells = <0>;
+                       clock-frequency = <600000000>;
+                       clock-output-names = "msspllclk";
+               };
+
+               clkcfg: clkcfg@20002000 {
+                       compatible = "microchip,pfsoc-clkcfg";
+                       reg = <0x0 0x20002000 0x0 0x1000>;
+                       reg-names = "mss_sysreg";
+                       clocks = <&refclk>;
+                       #clock-cells = <1>;
+                       clock-output-names = "cpuclk", "axiclk", "ahbclk", "ENVMclk", "MAC0clk", "MAC1clk", "MMCclk", "TIMERclk", "MMUART0clk", "MMUART1clk", "MMUART2clk", "MMUART3clk", "MMUART4clk", "SPI0clk", "SPI1clk", "I2C0clk", 
"I2C1clk", "CAN0clk", "CAN1clk", "USBclk", "RESERVED", "RTCclk", "QSPIclk", "GPIO0clk", "GPIO1clk", "GPIO2clk", "DDRCclk", "FIC0clk", "FIC1clk", "FIC2clk", "FIC3clk", "ATHENAclk", "CFMclk";
+               };
+
+               serial0: serial@20000000 {
+                       compatible = "ns16550a";
+                       reg = <0x0 0x20000000 0x0 0x400>;
+                       reg-io-width = <4>;
+                       reg-shift = <2>;
+                       interrupt-parent = <&plic>;
+                       interrupts = <90>;
+                       current-speed = <115200>;
+                       clocks = <&clkcfg 8>;
+                       status = "okay";
+               };
+
+               serial1: serial@20100000 {
+                       compatible = "ns16550a";
+                       reg = <0x0 0x20100000 0x0 0x400>;
+                       reg-io-width = <4>;
+                       reg-shift = <2>;
+                       interrupt-parent = <&plic>;
+                       interrupts = <91>;
+                       current-speed = <115200>;
+                       clocks = <&clkcfg 9>;
+                       status = "okay";
+               };
+
+               serial2: serial@20102000 {
+                       compatible = "ns16550a";
+                       reg = <0x0 0x20102000 0x0 0x400>;
+                       reg-io-width = <4>;
+                       reg-shift = <2>;
+                       interrupt-parent = <&plic>;
+                       interrupts = <92>;
+                       current-speed = <115200>;
+                       clocks = <&clkcfg 10>;
+                       status = "okay";
+               };
+
+               serial3: serial@20104000 {
+                       compatible = "ns16550a";
+                       reg = <0x0 0x20104000 0x0 0x400>;
+                       reg-io-width = <4>;
+                       reg-shift = <2>;
+                       interrupt-parent = <&plic>;
+                       interrupts = <93>;
+                       current-speed = <115200>;
+                       clocks = <&clkcfg 11>;
+                       status = "okay";
+               };
+
+               sdcard: sdhc@20008000 {
+                       compatible = "cdns,sd4hc";
+                       reg = <0x0 0x20008000 0x0 0x1000>;
+                       interrupt-parent = <&plic>;
+                       interrupts = <88>;
+                       pinctrl-names = "default";
+                       clocks = <&clkcfg 6>;
+                       bus-width = <4>;
+                       disable-wp;
+                       no-1-8-v;
+                       cap-mmc-highspeed;
+                       cap-sd-highspeed;
+                       card-detect-delay = <200>;
+                       sd-uhs-sdr12;
+                       sd-uhs-sdr25;
+                       sd-uhs-sdr50;
+                       sd-uhs-sdr104;
+                       max-frequency = <200000000>;
+                       status = "okay";
+               };
+
+               emac1: ethernet@20112000 {
+                       compatible = "cdns,macb";
+                       reg = <0x0 0x20112000 0x0 0x2000>;
+                       interrupt-parent = <&plic>;
+                       interrupts = <70 71 72 73>;
+                       mac-address = [56 34 12 00 FC 00];
+                       phy-mode = "sgmii";
+                       clocks = <&clkcfg 5>, <&clkcfg 2>;
+                       clock-names = "pclk", "hclk";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       phy1: ethernet-phy@9 {
+                               reg = <9>;
+                               ti,fifo-depth = <0x01>;
+                       };
+               };
+
+               uio_axi_lsram@2030000000 {
+                       compatible = "generic-uio";
+                       reg = <0x20 0x30000000 0 0x80000000 >;
+                       status = "okay";
+               };
+       };
+};

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