Commit 775f1f7e authored by Max Filippov's avatar Max Filippov
Browse files

xtensa: virt: add defconfig and DTS



Add defconfig and DTS for a virt board. Defconfig enables PCIe host and
a number of virtio devices. DTS routes legacy PCI IRQs to the first four
level-triggered external IRQ lines. CPU core with edge-triggered IRQs
among the first four may need a custom DTS to work correctly.

Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent d6d5f19e
// SPDX-License-Identifier: GPL-2.0
/dts-v1/;
/ {
compatible = "cdns,xtensa-iss";
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&pic>;
chosen {
bootargs = "console=ttyS0,115200n8 debug";
};
memory@0 {
device_type = "memory";
reg = <0x00000000 0x80000000>;
};
cpus {
#address-cells = <1>;
#size-cells = <0>;
cpu@0 {
compatible = "cdns,xtensa-cpu";
reg = <0>;
clocks = <&osc>;
};
};
clocks {
osc: osc {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <40000000>;
};
};
pic: pic {
compatible = "cdns,xtensa-pic";
/* one cell: internal irq number,
* two cells: second cell == 0: internal irq number
* second cell == 1: external irq number
*/
#address-cells = <0>;
#interrupt-cells = <2>;
interrupt-controller;
};
pci {
compatible = "pci-host-ecam-generic";
device_type = "pci";
#address-cells = <3>;
#size-cells = <2>;
#interrupt-cells = <0x1>;
bus-range = <0x0 0x3f>;
reg = <0xc0000000 0x04000000>;
// BUS_ADDRESS(3) CPU_PHYSICAL(1) SIZE(2)
ranges = <0x01000000 0x0 0xc4000000 0xc4000000 0x0 0x04000000>,
<0x02000000 0x0 0xc8000000 0xc8000000 0x0 0x18000000>;
// PCI_DEVICE(3) INT#(1) CONTROLLER(PHANDLE) CONTROLLER_DATA(2)
interrupt-map = <
0x0000 0x0 0x0 0x1 &pic 0x0 0x1
0x0800 0x0 0x0 0x1 &pic 0x1 0x1
0x1000 0x0 0x0 0x1 &pic 0x2 0x1
0x1800 0x0 0x0 0x1 &pic 0x3 0x1
>;
interrupt-map-mask = <0x1800 0x0 0x0 0x7>;
};
};
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
CONFIG_NO_HZ_IDLE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT=y
CONFIG_IRQ_TIME_ACCOUNTING=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_MEMCG=y
CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_CGROUP_DEBUG=y
CONFIG_NAMESPACES=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EXPERT=y
CONFIG_SYSCTL_SYSCALL=y
CONFIG_KALLSYMS_ALL=y
CONFIG_PERF_EVENTS=y
CONFIG_XTENSA_VARIANT_DC233C=y
CONFIG_XTENSA_UNALIGNED_USER=y
CONFIG_VECTORS_OFFSET=0x00002000
CONFIG_XTENSA_KSEG_512M=y
CONFIG_HIGHMEM=y
CONFIG_CMDLINE_BOOL=y
CONFIG_CMDLINE="console=ttyS0,115200n8 ip=dhcp root=/dev/nfs rw debug memmap=0x80000000@0"
CONFIG_USE_OF=y
CONFIG_BUILTIN_DTB_SOURCE="virt"
# CONFIG_PARSE_BOOTPARAM is not set
CONFIG_JUMP_LABEL=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
# CONFIG_COMPACTION is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_PNP=y
CONFIG_IP_PNP_DHCP=y
CONFIG_IP_PNP_BOOTP=y
CONFIG_IP_PNP_RARP=y
# CONFIG_IPV6 is not set
CONFIG_NETFILTER=y
# CONFIG_WIRELESS is not set
CONFIG_PCI=y
CONFIG_PCI_HOST_GENERIC=y
CONFIG_UEVENT_HELPER=y
CONFIG_DEVTMPFS=y
CONFIG_DEVTMPFS_MOUNT=y
# CONFIG_STANDALONE is not set
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_RAM=y
CONFIG_VIRTIO_BLK=y
CONFIG_SCSI=y
CONFIG_BLK_DEV_SD=y
CONFIG_NETDEVICES=y
CONFIG_VIRTIO_NET=y
# CONFIG_ETHERNET is not set
# CONFIG_WLAN is not set
CONFIG_INPUT_MOUSEDEV=y
CONFIG_INPUT_EVDEV=y
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_LEGACY_PTYS is not set
CONFIG_HW_RANDOM=y
CONFIG_HW_RANDOM_VIRTIO=y
# CONFIG_HWMON is not set
CONFIG_DRM=y
CONFIG_DRM_VGEM=y
CONFIG_DRM_VIRTIO_GPU=y
CONFIG_FB_MODE_HELPERS=y
# CONFIG_VGA_CONSOLE is not set
CONFIG_FRAMEBUFFER_CONSOLE=y
CONFIG_LOGO=y
# CONFIG_USB_SUPPORT is not set
CONFIG_VIRTIO_PCI=y
CONFIG_VIRTIO_INPUT=y
# CONFIG_IOMMU_SUPPORT is not set
CONFIG_EXT3_FS=y
CONFIG_FANOTIFY=y
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_NFS_FS=y
CONFIG_NFS_V4=y
CONFIG_NFS_SWAP=y
CONFIG_ROOT_NFS=y
CONFIG_SUNRPC_DEBUG=y
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ISO8859_1=y
CONFIG_CRYPTO_ECHAINIV=y
CONFIG_CRYPTO_DEFLATE=y
CONFIG_CRYPTO_LZO=y
CONFIG_CRYPTO_ANSI_CPRNG=y
CONFIG_CRYPTO_DEV_VIRTIO=y
CONFIG_FONTS=y
CONFIG_PRINTK_TIME=y
CONFIG_DYNAMIC_DEBUG=y
CONFIG_DEBUG_INFO=y
CONFIG_MAGIC_SYSRQ=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_SCHEDSTATS=y
CONFIG_DEBUG_RT_MUTEXES=y
CONFIG_DEBUG_SPINLOCK=y
CONFIG_DEBUG_MUTEXES=y
CONFIG_DEBUG_ATOMIC_SLEEP=y
CONFIG_STACKTRACE=y
CONFIG_RCU_TRACE=y
# CONFIG_FTRACE is not set
# CONFIG_S32C1I_SELFTEST is not set
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