RISC-V on an FPGA, pt. 4

It boots!

lowRISC boot program
=====================================
Load boot into memory
Load 11660 bytes to memory.
Read boot and load elf to DDR memory
Boot the loaded program...
[    0.000000] Linux version 3.14.41-g9a25e8d (rjones@moo.home.annexia.org) (gcc version 5.2.0 (GCC) ) #1 Mon Jul 25 19:07:50 BST 2016
[    0.000000] Available physical memory: 126MB
[    0.000000] Zone ranges:
[    0.000000]   Normal   [mem 0x00200000-0x07ffffff]
[    0.000000] Movable zone start for each node
[    0.000000] Early memory node ranges
[    0.000000]   node   0: [mem 0x00200000-0x07ffffff]
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 31815
[    0.000000] Kernel command line: root=/dev/htifblk0
[    0.000000] PID hash table entries: 512 (order: 0, 4096 bytes)
[    0.000000] Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
[    0.000000] Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
[    0.000000] Sorting __ex_table...
[    0.000000] Memory: 124488K/129024K available (1725K kernel code, 120K rwdata, 356K rodata, 68K init, 211K bss, 4536K reserved)
[    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[    0.000000] NR_IRQS:2
[    0.150000] Calibrating delay using timer specific routine.. 20.01 BogoMIPS (lpj=100097)
[    0.150000] pid_max: default: 32768 minimum: 301
[    0.150000] Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
[    0.150000] Mountpoint-cache hash table entries: 512 (order: 0, 4096 bytes)
[    0.150000] devtmpfs: initialized
[    0.150000] NET: Registered protocol family 16
[    0.150000] bio: create slab  at 0
[    0.150000] Switched to clocksource riscv_clocksource
[    0.150000] NET: Registered protocol family 2
[    0.150000] TCP established hash table entries: 1024 (order: 1, 8192 bytes)
[    0.150000] TCP bind hash table entries: 1024 (order: 1, 8192 bytes)
[    0.150000] TCP: Hash tables configured (established 1024 bind 1024)
[    0.150000] TCP: reno registered
[    0.150000] UDP hash table entries: 256 (order: 1, 8192 bytes)
[    0.150000] UDP-Lite hash table entries: 256 (order: 1, 8192 bytes)
[    0.150000] NET: Registered protocol family 1
[    0.150000] futex hash table entries: 256 (order: 0, 6144 bytes)
[    0.150000] io scheduler noop registered
[    0.150000] io scheduler cfq registered (default)
[    0.180000] htifcon htif0: detected console
[    0.190000] console [htifcon0] enabled
[    0.190000] htifblk htif1: detected disk
[    0.190000] htifblk htif1: added htifblk0
[    0.190000] TCP: cubic registered
[    0.190000] VFS: Mounted root (ext2 filesystem) readonly on device 254:0.
[    0.190000] devtmpfs: mounted
[    0.190000] Freeing unused kernel memory: 68K (ffffffff80000000 - ffffffff80011000)
# uname -a
Linux ucbvax 3.14.41-g9a25e8d #1 Mon Jul 25 19:07:50 BST 2016 riscv GNU/Linux