diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/Kconfig | 4 | ||||
| -rw-r--r-- | arch/riscv/dts/Makefile | 1 | ||||
| -rw-r--r-- | arch/riscv/dts/openpiton-riscv64.dts | 153 |
3 files changed, 158 insertions, 0 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index b3d7fd84ce..4b0c3dffa6 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -26,6 +26,9 @@ config TARGET_SIFIVE_UNMATCHED config TARGET_SIPEED_MAIX bool "Support Sipeed Maix Board" +config TARGET_OPENPITON_RISCV64 + bool "Support RISC-V cores on OpenPiton SoC" + endchoice config SYS_ICACHE_OFF @@ -60,6 +63,7 @@ source "board/emulation/qemu-riscv/Kconfig" source "board/microchip/mpfs_icicle/Kconfig" source "board/sifive/unleashed/Kconfig" source "board/sifive/unmatched/Kconfig" +source "board/openpiton/riscv64/Kconfig" source "board/sipeed/maix/Kconfig" # platform-specific options below diff --git a/arch/riscv/dts/Makefile b/arch/riscv/dts/Makefile index 7778874831..b6e9166767 100644 --- a/arch/riscv/dts/Makefile +++ b/arch/riscv/dts/Makefile @@ -3,6 +3,7 @@ dtb-$(CONFIG_TARGET_AX25_AE350) += ae350_32.dtb ae350_64.dtb dtb-$(CONFIG_TARGET_MICROCHIP_ICICLE) += microchip-mpfs-icicle-kit.dtb dtb-$(CONFIG_TARGET_QEMU_VIRT) += qemu-virt.dtb +dtb-$(CONFIG_TARGET_OPENPITON_RISCV64) += openpiton-riscv64.dtb dtb-$(CONFIG_TARGET_SIFIVE_UNLEASHED) += hifive-unleashed-a00.dtb dtb-$(CONFIG_TARGET_SIFIVE_UNMATCHED) += hifive-unmatched-a00.dtb dtb-$(CONFIG_TARGET_SIPEED_MAIX) += k210-maix-bit.dtb diff --git a/arch/riscv/dts/openpiton-riscv64.dts b/arch/riscv/dts/openpiton-riscv64.dts new file mode 100644 index 0000000000..45951e1236 --- /dev/null +++ b/arch/riscv/dts/openpiton-riscv64.dts @@ -0,0 +1,153 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* Copyright (c) 2021 Tianrui Wei <tianrui-wei@outlook.com> */ + +/* + * This dts is for a dual core instance of OpenPiton+Ariane built + * to run on a Digilent Genesys 2 FPGA at 66.67MHz. These files + * are automatically generated by the OpenPiton build system and + * this configuration may not be what you need if your configuration + * is different from the below. + */ + +/dts-v1/; + +/ { + #address-cells = <2>; + #size-cells = <2>; + compatible = "openpiton,riscv64"; + + chosen { + stdout-path = "uart0:115200"; + }; + + aliases { + console = &uart0; + serial0 = &uart0; + }; + + cpus { + #address-cells = <1>; + #size-cells = <0>; + timebase-frequency = <520835>; + + CPU0: cpu@0 { + clocks = <&clk0>; + u-boot,dm-spl; + device_type = "cpu"; + reg = <0>; + compatible = "openhwgroup,cva6", "riscv"; + riscv,isa = "rv64imafdc"; + mmu-type = "riscv,sv39"; + tlb-split; + // HLIC - hart local interrupt controller + CPU0_intc: interrupt-controller { + #interrupt-cells = <1>; + interrupt-controller; + compatible = "riscv,cpu-intc"; + }; + }; + + CPU1: cpu@1 { + clocks = <&clk0>; + device_type = "cpu"; + reg = <1>; + compatible = "openhwgroup,cva6", "riscv"; + riscv,isa = "rv64imafdc"; + mmu-type = "riscv,sv39"; + tlb-split; + // HLIC - hart local interrupt controller + CPU1_intc: interrupt-controller { + #interrupt-cells = <1>; + interrupt-controller; + compatible = "riscv,cpu-intc"; + }; + }; + + }; + + clocks { + clk0: osc { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <66667000>; + }; + }; + + memory@80000000 { + u-boot,dm-spl; + device_type = "memory"; + reg = < 0x00000000 0x80000000 0x00000000 0x40000000 >; + }; + + soc { + #address-cells = <1>; + #size-cells = <1>; + compatible = "openpiton,chipset", "simple-bus"; + ranges; + + uart0: uart@fff0c2c000 { + compatible = "ns16550", "openpiton,ns16550"; + reg = < 0x000000ff 0xf0c2c000 0x00000000 0x000d4000 >; + interrupt-parent = <&PLIC0>; + interrupts = <1>; + reg-shift = <0>; + // regs are spaced on 8 bit boundary + }; + + eth: ethernet@fff0d00000 { + compatible = "xlnx,xps-ethernetlite-1.00.a", "openpiton,ethernet"; + device_type = "network"; + reg = < 0x000000ff 0xf0d00000 0x00000000 0x00100000 >; + interrupt-parent = <&PLIC0>; + interrupts = <2>; + phy-handle = <&phy0>; + xlnx,duplex = <0x1>; + xlnx,include-global-buffers = <0x1>; + xlnx,include-internal-loopback = <0x0>; + xlnx,include-mdio = <0x1>; + xlnx,rx-ping-pong = <0x1>; + xlnx,s-axi-id-width = <0x1>; + xlnx,tx-ping-pong = <0x1>; + xlnx,use-internal = <0x0>; + axi_ethernetlite_0_mdio: mdio { + #address-cells = <1>; + #size-cells = <0>; + phy0: phy@1 { + compatible = "ethernet-phy-id001C.C915"; + device_type = "ethernet-phy"; + reg = <1>; + }; + }; + }; + + sdhci_0: sdhci@f000000000 { + u-boot,dm-spl; + compatible = "openpiton,piton-mmc", "openpiton,mmc"; + reg = < 0x000000f0 0x00000000 0x00000000 0x00300000 >; + }; + + clint@fff1020000 { + compatible = "sifive,clint0", "openpiton,clint"; + interrupts-extended = < &CPU0_intc 3 + &CPU0_intc 7 + &CPU1_intc 3 + &CPU1_intc 7 >; + reg = < 0x000000ff 0xf1020000 0x00000000 0x000c0000 >; + clocks = <&clk0>; + }; + + PLIC0: plic@fff1100000 { + u-boot,dm-spl; + #interrupt-cells = <1>; + compatible = "sifive,plic-1.0.0", "openpiton,plic"; + interrupt-controller; + interrupts-extended = < &CPU0_intc 11 + &CPU0_intc 9 + &CPU1_intc 11 + &CPU1_intc 9 >; + reg = < 0x000000ff 0xf1100000 0x00000000 0x04000000 >; + riscv,max-priority = <7>; + riscv,ndev = <2>; + }; + }; +}; |