Based on chipsalliance/rocket-chip@tags/v1.6, an affable single core Rocktchip is configured, with the following features (customizable by updating fields in MyRocketchipConfig class):
- Single rocket core by default.
- 7 IRQs
- 1 GB Memory range
- Two versions of implementation are provided, debuggable with OpenOCD and XSDB.
- Vivado
- Setup your own env by following instructions in rocket-chip.
- riscv tool chain
git clone https://github.com/HaogeL/MyRocketchip.git
cd MyRocketchip
git submodule update --init --recursive rocket-chip
cd rocket-chip
git checkout tags/v1.6
git apply ../MyRocketchip.patch
cd vsim
# Get RTL, compatible with Xilinx XSDB
make clean && make verilog CONFIG=freechips.rocketchip.system.MyRocketchipConfig MODEL=MyRocketchip
# Get RTL, compatible with OpenOCD
make clean && make verilog CONFIG=freechips.rocketchip.system.MyRocketchipConfig MODEL=MyRocketchipOpenOCDCheck the generated RTL under rocket-chip/vsim/generated-src
Note, the RTL files used in the Vivado project are generated from the last step. The difference is that, in the top RTL file, AXI signals names are updated to follow Vivado AXI naming convention, so that Vivado can infer AXI bus automatically. A vim script, UpdateAXISignalNames, is provided for this purpose.
cd <MyRocketchip>/MyRocketchipOpenOCD
vivado -source MyRocketchip.tclcd <MyRocketchip>/MyRocketchipXSDB
vivado -source MyRocketchipXSDB.tclcd <MyRocketchip>
git submodule update --init --recursive busybox
cd busybox
git checkout tags/1_33_2
cp ../busybox.config ./.config
make CROSS_COMPILE=riscv64-linux-gnu-Build Busybox first.
cd <MyRocketchip>
mkdir root
cd root
mkdir -p bin etc dev lib proc sbin sys tmp usr usr/bin usr/lib usr/sbin
cp ../busybox/busybox bin/busybox
ln -s bin/busybox sbin/init
ln -s bin/busybox init
cp ../inittab ./etc/inittab
sudo mknod dev/console c 5 1
find . | cpio --quiet -o -H newc | gzip > ../rootfs.cpio.gzBuild Rootfs first.
cd <MyRocketchip>
git clone https://github.com/torvalds/linux.git
cd linux
git checkout v5.19
cp ../linux.config ./.config
cp ../driver.patch .
git apply driver.patch
cp ../rootfs.cpio.gz .
make ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- vmlinuxcd <MyRocketchip>
git clone https://github.com/riscv/riscv-pk
cd riscv-pk
git checkout 7e9b671c0415dfd
mkdir build
cd build
../configure --host=riscv64-linux-gnu \
--with-payload=../../linux/vmlinux \
--with-dts=../../MyRocketchip.dts \
--enable-logo
make
cp bbl.bin boot.binRecreate Vivado project --> synthesis --> implementation --> generate bitstream --> programm FPGA, either from GUI or XSDB
Enter Xilinx XSDB
xsdb% connect
tcfchan#0
xsdb% targets
1 xcvu37p
2 BSCAN JTAG
3 RISC-V
4 Hart #0 (Running)
xsdb% target 4
xsdb% dow -data MyRocketchip/riscv-pk/build/boot.bin 0x80000000
100% 21MB 0.1MB/s 02:43
Successfully downloaded /home/sprite/Desktop/MyRocketchip/riscv-pk/build/boot.bin
xsdb% con -addr 0x80000000 Disconnect all the connection with FPGA board, either from GUI or on XSDB. Otherwise, OpenOCD will have conflict. Use /ftdi.cfg as configuration file for openocd
openocd -f <MyRocketchip>/ftdi.cfgOpen riscv64-unknown-elf-gdb in another terminal. Debug features are available now.
xx@xx:/$ /riscv/bin/riscv64-unknown-elf-gdb
GNU gdb (GDB) 10.1
Copyright (C) 2020 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "--host=x86_64-pc-linux-gnu --target=riscv64-unknown-elf".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.
For help, type "help".
Type "apropos word" to search for commands related to "word".
(gdb) target remote localhost:3333
Remote debugging using localhost:3333
warning: No executable has been specified and target does not support
determining executable automatically. Try using the "file" command.
0x0000000000010058 in ?? ()
(gdb) restore <MyRocketchip>/riscv-pk/build/boot.bin binary 0x80000000
Restoring binary file /home/sprite/Desktop/MyRocketchip/riscv-pk/build/boot.bin into memory (0x80000000 to 0x815434c8)
(gdb) set $pc=0x10000
(gdb) cBBL logo and Linux messages come out first before getting a Linux terminal
bbl loader
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
vvvvvvvvvvvvvvvvvvvvvvvvvvvv
rrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvvvv
rrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv
rrrrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv
rrrrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv
rrrrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvvvv
rrrrrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvv
rrrrrrrrrrrrr vvvvvvvvvvvvvvvvvvvvvv
rr vvvvvvvvvvvvvvvvvvvvvv
rr vvvvvvvvvvvvvvvvvvvvvvvv rr
rrrr vvvvvvvvvvvvvvvvvvvvvvvvvv rrrr
rrrrrr vvvvvvvvvvvvvvvvvvvvvv rrrrrr
rrrrrrrr vvvvvvvvvvvvvvvvvv rrrrrrrr
rrrrrrrrrr vvvvvvvvvvvvvv rrrrrrrrrr
rrrrrrrrrrrr vvvvvvvvvv rrrrrrrrrrrr
rrrrrrrrrrrrrr vvvvvv rrrrrrrrrrrrrr
rrrrrrrrrrrrrrrr vv rrrrrrrrrrrrrrrr
rrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrr
rrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrr
rrrrrrrrrrrrrrrrrrrrrr rrrrrrrrrrrrrrrrrrrrrr
INSTRUCTION SETS WANT TO BE FREE
[ 0.000000] Linux version 5.19.0 (sprite@blade) (riscv64-linux-gnu-gcc (Ubuntu 9.4.0-1ubuntu1~20.04) 9.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #1 SMP Sat Dec 10 17:08:57 CET 2022
[ 0.000000] OF: fdt: Ignoring memory range 0x80000000 - 0x80200000
[ 0.000000] Machine model: freechips,rocketchip-unknown
[ 0.000000] earlycon: ns16550a0 at MMIO 0x0000000060001000 (options '')
[ 0.000000] printk: bootconsole [ns16550a0] enabled
[ 0.000000] efi: UEFI not found.
[ 0.000000] Zone ranges:
[ 0.000000] DMA32 [mem 0x0000000080200000-0x00000000bfffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000080200000-0x00000000bfffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000080200000-0x00000000bfffffff]
[ 0.000000] SBI specification v0.1 detected
[ 0.000000] riscv: base ISA extensions acdfim
[ 0.000000] riscv: ELF capabilities acdfim
[ 0.000000] percpu: Embedded 18 pages/cpu s34104 r8192 d31432 u73728
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 258055
[ 0.000000] Kernel command line: earlycon console=ttyS0,115200n8
[ 0.000000] Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 65536 (order: 7, 524288 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] Virtual kernel memory layout:
[ 0.000000] fixmap : 0xffffffc6fee00000 - 0xffffffc6ff000000 (2048 kB)
[ 0.000000] pci io : 0xffffffc6ff000000 - 0xffffffc700000000 ( 16 MB)
[ 0.000000] vmemmap : 0xffffffc700000000 - 0xffffffc800000000 (4096 MB)
[ 0.000000] vmalloc : 0xffffffc800000000 - 0xffffffd800000000 ( 64 GB)
[ 0.000000] lowmem : 0xffffffd800000000 - 0xffffffd83fe00000 (1022 MB)
[ 0.000000] kernel : 0xffffffff80000000 - 0xffffffffffffffff (2047 MB)
[ 0.000000] Memory: 1010060K/1046528K available (6537K kernel code, 4389K rwdata, 4096K rodata, 2648K init, 397K bss, 36468K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] rcu: Hierarchical RCU implementation.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=8 to nr_cpu_ids=1.
[ 0.000000] rcu: RCU debug extended QS entry/exit.
[ 0.000000] Tracing variant of Tasks RCU enabled.
[ 0.000000] rcu: RCU calculated value of scheduler-enlistment delay is 25 jiffies.
[ 0.000000] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
[ 0.000000] NR_IRQS: 64, nr_irqs: 64, preallocated irqs: 0
[ 0.000000] riscv-intc: 64 local interrupts mapped
[ 0.000000] plic: interrupt-controller@c000000: mapped 10 interrupts with 1 handlers for 2 contexts.
[ 0.000000] rcu: srcu_init: Setting srcu_struct sizes based on contention.
[ 0.000000] riscv_timer_init_dt: Registering clocksource cpuid [0] hartid [0]
[ 0.000000] clocksource: riscv_clocksource: mask: 0xffffffffffffffff max_cycles: 0x1d854df40, max_idle_ns: 3526361616960 ns
[ 0.000013] sched_clock: 64 bits at 1000kHz, resolution 1000ns, wraps every 2199023255500ns
[ 0.010592] Console: colour dummy device 80x25
[ 0.015713] Calibrating delay loop (skipped), value calculated using timer frequency.. 2.00 BogoMIPS (lpj=4000)
[ 0.026131] pid_max: default: 32768 minimum: 301
[ 0.033909] Mount-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.041851] Mountpoint-cache hash table entries: 2048 (order: 2, 16384 bytes, linear)
[ 0.076857] cblist_init_generic: Setting adjustable number of callback queues.
[ 0.084377] cblist_init_generic: Setting shift to 0 and lim to 1.
[ 0.092733] riscv: ELF compat mode failed
[ 0.092852] ASID allocator disabled (0 bits)
[ 0.103687] rcu: Hierarchical SRCU implementation.
[ 0.108773] rcu: Max phase no-delay instances is 1000.
[ 0.118554] EFI services will not be available.
[ 0.128548] smp: Bringing up secondary CPUs ...
[ 0.133357] smp: Brought up 1 node, 1 CPU
[ 0.144524] devtmpfs: initialized
[ 0.170037] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.180199] futex hash table entries: 256 (order: 2, 16384 bytes, linear)
[ 0.202624] NET: Registered PF_NETLINK/PF_ROUTE protocol family
[ 0.216443] cpuidle: using governor menu
[ 0.385110] HugeTLB registered 2.00 MiB page size, pre-allocated 0 pages
[ 0.398946] iommu: Default domain type: Translated
[ 0.404143] iommu: DMA domain TLB invalidation policy: strict mode
[ 0.414874] SCSI subsystem initialized
[ 0.425277] usbcore: registered new interface driver usbfs
[ 0.431879] usbcore: registered new interface driver hub
[ 0.438024] usbcore: registered new device driver usb
[ 0.455523] vgaarb: loaded
[ 0.460303] clocksource: Switched to clocksource riscv_clocksource
[ 0.639342] NET: Registered PF_INET protocol family
[ 0.648595] IP idents hash table entries: 16384 (order: 5, 131072 bytes, linear)
[ 0.688801] tcp_listen_portaddr_hash hash table entries: 512 (order: 2, 16384 bytes, linear)
[ 0.698093] Table-perturb hash table entries: 65536 (order: 6, 262144 bytes, linear)
[ 0.706453] TCP established hash table entries: 8192 (order: 4, 65536 bytes, linear)
[ 0.716489] TCP bind hash table entries: 8192 (order: 6, 262144 bytes, linear)
[ 0.729618] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.738492] UDP hash table entries: 512 (order: 3, 49152 bytes, linear)
[ 0.746592] UDP-Lite hash table entries: 512 (order: 3, 49152 bytes, linear)
[ 0.757401] NET: Registered PF_UNIX/PF_LOCAL protocol family
[ 0.772837] RPC: Registered named UNIX socket transport module.
[ 0.779104] RPC: Registered udp transport module.
[ 0.784048] RPC: Registered tcp transport module.
[ 0.789121] RPC: Registered tcp NFSv4.1 backchannel transport module.
[ 0.795866] PCI: CLS 0 bytes, default 64
[ 0.869011] workingset: timestamp_bits=62 max_order=18 bucket_order=0
[ 1.099715] NFS: Registering the id_resolver key type
[ 1.106049] Key type id_resolver registered
[ 1.110535] Key type id_legacy registered
[ 1.116014] nfs4filelayout_init: NFSv4 File Layout Driver Registering...
[ 1.123203] nfs4flexfilelayout_init: NFSv4 Flexfile Layout Driver Registering...
[ 1.167896] 9p: Installing v9fs 9p2000 file system support
[ 1.178779] NET: Registered PF_ALG protocol family
[ 1.184811] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 250)
[ 1.192591] io scheduler mq-deadline registered
[ 1.197381] io scheduler kyber registered
[ 2.439404] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 2.468570] printk: console [ttyS0] disabled
[ 2.474023] 60000000.serial: ttyS0 at MMIO 0x60001000 (irq = 1, base_baud = 6250000) is a 16550A
[ 2.483510] printk: console [ttyS0] enabled
[ 2.483510] printk: console [ttyS0] enabled
[ 2.492944] printk: bootconsole [ns16550a0] disabled
[ 2.492944] printk: bootconsole [ns16550a0] disabled
[ 2.606119] loop: module loaded
[ 2.636334] e1000e: Intel(R) PRO/1000 Network Driver
[ 2.641613] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[ 2.650838] xilinx_axienet 60040000.ethernet (unnamed net_device) (uninitialized): Please upgrade your device tree binary blob to use phy-mode
[ 2.701168] ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
[ 2.708102] ehci-pci: EHCI PCI platform driver
[ 2.713608] ehci-platform: EHCI generic platform driver
[ 2.720380] ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
[ 2.727086] ohci-pci: OHCI PCI platform driver
[ 2.732680] ohci-platform: OHCI generic platform driver
[ 2.743792] usbcore: registered new interface driver uas
[ 2.750614] usbcore: registered new interface driver usb-storage
[ 2.760049] mousedev: PS/2 mouse device common for all mice
[ 2.770110] cpuidle-riscv-sbi: HSM suspend not available
[ 2.778211] sdhci: Secure Digital Host Controller Interface driver
[ 2.784860] sdhci: Copyright(c) Pierre Ossman
[ 2.790060] sdhci-pltfm: SDHCI platform and OF driver helper
[ 2.799214] usbcore: registered new interface driver usbhid
[ 2.805276] usbhid: USB HID core driver
[ 2.818696] NET: Registered PF_INET6 protocol family
[ 2.843193] Segment Routing with IPv6
[ 2.848465] In-situ OAM (IOAM) with IPv6
[ 2.853720] sit: IPv6, IPv4 and MPLS over IPv4 tunneling driver
[ 2.868630] NET: Registered PF_PACKET protocol family
[ 2.876593] 9pnet: Installing 9P2000 support
[ 2.882384] Key type dns_resolver registered
[ 2.895034] debug_vm_pgtable: [debug_vm_pgtable ]: Validating architecture page table helpers
[ 2.931939] Legacy PMU implementation is available
[ 2.983075] Freeing unused kernel image (initmem) memory: 2648K
[ 2.992639] Run /init as init process
BusyBox v1.33.2 (2022-12-10 16:52:42 CET) built-in shell (ash)
Enter 'help' for a list of built-in commands.
# ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:11:22:33:44:55
BROADCAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
LOOPBACK MTU:65536 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
sit0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-10-FB-00-00-00-00-00-00-00-00
NOARP MTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
#
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