From a92a5d0dce5b02fa34792e313b5fe3d7d317b17b Mon Sep 17 00:00:00 2001 From: Mischa Jonker Date: Thu, 18 Apr 2013 11:40:39 +0200 Subject: [PATCH] ARC: Add support for nSIM OSCI System C model This adds support for an ARC Virtual Platform. This platform is based on the System C standard promoted by the OSCI (Open System C Initiative) and uses nSIM to simulate the ARC CPU core itself. Users can build a virtual SoC by combining System C models of peripherals and CPU cores. Signed-off-by: Mischa Jonker Signed-off-by: Vineet Gupta --- arch/arc/boot/dts/nsimosci.dts | 77 +++++++++++++++++++++++++++++++++++++ arch/arc/configs/nsimosci_defconfig | 75 ++++++++++++++++++++++++++++++++++++ arch/arc/plat-arcfpga/platform.c | 12 ++++++ 3 files changed, 164 insertions(+) create mode 100644 arch/arc/boot/dts/nsimosci.dts create mode 100644 arch/arc/configs/nsimosci_defconfig diff --git a/arch/arc/boot/dts/nsimosci.dts b/arch/arc/boot/dts/nsimosci.dts new file mode 100644 index 0000000..ea16d78 --- /dev/null +++ b/arch/arc/boot/dts/nsimosci.dts @@ -0,0 +1,77 @@ +/* + * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com) + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +/dts-v1/; + +/include/ "skeleton.dtsi" + +/ { + compatible = "snps,nsimosci"; + clock-frequency = <80000000>; /* 80 MHZ */ + #address-cells = <1>; + #size-cells = <1>; + interrupt-parent = <&intc>; + + chosen { + bootargs = "console=tty0 consoleblank=0"; + }; + + aliases { + serial0 = &uart0; + }; + + memory { + device_type = "memory"; + reg = <0x80000000 0x10000000>; /* 256M */ + }; + + fpga { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <1>; + + /* child and parent address space 1:1 mapped */ + ranges; + + intc: interrupt-controller { + compatible = "snps,arc700-intc"; + interrupt-controller; + #interrupt-cells = <1>; + }; + + uart0: serial@c0000000 { + compatible = "snps,dw-apb-uart"; + reg = <0xc0000000 0x2000>; + interrupts = <11>; + #clock-frequency = <80000000>; + clock-frequency = <3686400>; + baud = <115200>; + reg-shift = <2>; + reg-io-width = <4>; + status = "okay"; + }; + + pgu0: pgu@c9000000 { + compatible = "snps,arcpgufb"; + reg = <0xc9000000 0x400>; + }; + + ps2: ps2@c9001000 { + compatible = "snps,arc_ps2"; + reg = <0xc9000400 0x14>; + interrupts = <13>; + interrupt-names = "arc_ps2_irq"; + }; + + eth0: ethernet@c0003000 { + compatible = "snps,oscilan"; + reg = <0xc0003000 0x44>; + interrupts = <7>, <8>; + interrupt-names = "rx", "tx"; + }; + }; +}; diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig new file mode 100644 index 0000000..446c96c --- /dev/null +++ b/arch/arc/configs/nsimosci_defconfig @@ -0,0 +1,75 @@ +CONFIG_CROSS_COMPILE="arc-elf32-" +# CONFIG_LOCALVERSION_AUTO is not set +CONFIG_DEFAULT_HOSTNAME="ARCLinux" +# CONFIG_SWAP is not set +CONFIG_HIGH_RES_TIMERS=y +CONFIG_IKCONFIG=y +CONFIG_IKCONFIG_PROC=y +CONFIG_NAMESPACES=y +# CONFIG_UTS_NS is not set +# CONFIG_PID_NS is not set +CONFIG_BLK_DEV_INITRD=y +CONFIG_INITRAMFS_SOURCE="../arc_initramfs" +CONFIG_KALLSYMS_ALL=y +CONFIG_EMBEDDED=y +# CONFIG_SLUB_DEBUG is not set +# CONFIG_COMPAT_BRK is not set +CONFIG_KPROBES=y +CONFIG_MODULES=y +# CONFIG_LBDAF is not set +# CONFIG_BLK_DEV_BSG is not set +# CONFIG_IOSCHED_DEADLINE is not set +# CONFIG_IOSCHED_CFQ is not set +CONFIG_ARC_PLAT_FPGA_LEGACY=y +CONFIG_ARC_BOARD_ML509=y +# CONFIG_ARC_IDE is not set +# CONFIG_ARCTANGENT_EMAC is not set +# CONFIG_ARC_HAS_RTSC is not set +CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci" +# CONFIG_COMPACTION is not set +# CONFIG_CROSS_MEMORY_ATTACH is not set +CONFIG_NET=y +CONFIG_PACKET=y +CONFIG_UNIX=y +CONFIG_UNIX_DIAG=y +CONFIG_NET_KEY=y +CONFIG_INET=y +# CONFIG_IPV6 is not set +# CONFIG_STANDALONE is not set +# CONFIG_PREVENT_FIRMWARE_BUILD is not set +# CONFIG_FIRMWARE_IN_KERNEL is not set +# CONFIG_BLK_DEV is not set +CONFIG_NETDEVICES=y +# CONFIG_INPUT_MOUSEDEV_PSAUX is not set +# CONFIG_MOUSE_PS2_ALPS is not set +# CONFIG_MOUSE_PS2_LOGIPS2PP is not set +# CONFIG_MOUSE_PS2_SYNAPTICS is not set +# CONFIG_MOUSE_PS2_TRACKPOINT is not set +CONFIG_MOUSE_PS2_TOUCHKIT=y +# CONFIG_SERIO_I8042 is not set +# CONFIG_SERIO_SERPORT is not set +CONFIG_SERIO_ARC_PS2=y +# CONFIG_LEGACY_PTYS is not set +# CONFIG_DEVKMEM is not set +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y +CONFIG_SERIAL_8250_DW=y +CONFIG_SERIAL_ARC=y +CONFIG_SERIAL_ARC_CONSOLE=y +# CONFIG_HW_RANDOM is not set +# CONFIG_HWMON is not set +CONFIG_FB=y +# CONFIG_VGA_CONSOLE is not set +CONFIG_FRAMEBUFFER_CONSOLE=y +CONFIG_LOGO=y +# CONFIG_HID is not set +# CONFIG_USB_SUPPORT is not set +# CONFIG_IOMMU_SUPPORT is not set +CONFIG_EXT2_FS=y +CONFIG_EXT2_FS_XATTR=y +CONFIG_TMPFS=y +# CONFIG_MISC_FILESYSTEMS is not set +CONFIG_NFS_FS=y +# CONFIG_ENABLE_WARN_DEPRECATED is not set +# CONFIG_ENABLE_MUST_CHECK is not set +CONFIG_XZ_DEC=y diff --git a/arch/arc/plat-arcfpga/platform.c b/arch/arc/plat-arcfpga/platform.c index 4e20a1a..b3700c0 100644 --- a/arch/arc/plat-arcfpga/platform.c +++ b/arch/arc/plat-arcfpga/platform.c @@ -224,3 +224,15 @@ MACHINE_START(ML509, "ml509") .init_smp = iss_model_init_smp, #endif MACHINE_END + +static const char *nsimosci_compat[] __initdata = { + "snps,nsimosci", + NULL, +}; + +MACHINE_START(NSIMOSCI, "nsimosci") + .dt_compat = nsimosci_compat, + .init_early = NULL, + .init_machine = plat_fpga_populate_dev, + .init_irq = NULL, +MACHINE_END -- 2.7.4