On Wed, Jan 25, 2017 at 09:27:29AM -0800, Richard Henderson wrote: > On 01/25/2017 04:34 AM, Stafford Horne wrote: > > Hmm, I just tried your qemu branch and mine: > > > > g...@github.com:stffrdhrn/qemu.git or1k-fix-sigill > > > > Both of them were able to boot fine. > > > > The opencores,or1200-rtlsvn481 cpu node is in the or1ksim device tree > > definition. Are you sure your kernel config has this in it? > > > > CONFIG_OPENRISC_BUILTIN_DTB="or1ksim" > > > > Could you send your kernel config? > > > > I have attached mine, just in case. For next-20170124 > > Curious. The entire diff between our configs is just > > --- ../or-config 2017-01-24 09:14:51.918059107 -0800 > +++ .config 2017-01-25 09:18:14.153999754 -0800 > @@ -18,7 +18,7 @@ > # > CONFIG_BROKEN_ON_SMP=y > CONFIG_INIT_ENV_ARG_LIMIT=32 > -CONFIG_CROSS_COMPILE="or1k-linux-musl-" > +CONFIG_CROSS_COMPILE="or1k-musl-linux-" > # CONFIG_COMPILE_TEST is not set > CONFIG_LOCALVERSION="" > CONFIG_LOCALVERSION_AUTO=y > > So you're saying you *do* get serial port output? > > Perhaps you can just send me your kernel...
I just sent you a mail with a link to my kernel for download. One thing I noticed is you passed '-append console=ttyS0' I think that does nothing on openrisc since as far as I know openrisc only gets boot params from the device tree file. I tried with and without it and got no differences. Another thing, I am using a 'late' version of gcc built with musl cross [1] , I dont think it would make a difference, but maybe? $ or1k-musl-linux-as --version GNU assembler (GNU Binutils) 2.26.20160125 Copyright (C) 2015 Free Software Foundation, Inc. This program is free software; you may redistribute it under the terms of the GNU General Public License version 3 or later. This program has absolutely no warranty. This assembler was configured for a target of `or1k-linux-musl'. $ or1k-musl-linux-gcc --version or1k-musl-linux-gcc (GCC) 5.4.0 Copyright (C) 2015 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. [1] https://github.com/openrisc/musl-cross/tree/or1k Boot sequence I am seeing, this comes out to stdout when running the qemu command. The panic at the end is expected, if I add initrd it goes away. Compiled-in FDT at c03ad120 Linux version 4.10.0-rc5-next-20170124 (sho...@lianli.shorne-pla.net) (gcc version 5.4.0 (GCC) ) #406 Thu Jan 26 22:04:20 JST 2017 CPU: OpenRISC-0 (revision 0) @20 MHz -- dcache disabled -- icache disabled -- dmmu: 64 entries, 1 way(s) -- immu: 64 entries, 1 way(s) -- additional features: -- power management -- timer setup_memory: Memory: 0x0-0x2000000 Setting up paging and PTEs. map_ram: Memory: 0x0-0x2000000 itlb_miss_handler c0002160 dtlb_miss_handler c0002000 OpenRISC Linux -- http://openrisc.io Built 1 zonelists in Zone order, mobility grouping off. Total pages: 4080 Kernel command line: console=uart,mmio,0x90000000,115200 earlycon: uart0 at MMIO 0x90000000 (options '115200') bootconsole [uart0] enabled PID hash table entries: 128 (order: -4, 512 bytes) Dentry cache hash table entries: 4096 (order: 1, 16384 bytes) Inode-cache hash table entries: 2048 (order: 0, 8192 bytes) Sorting __ex_table... Memory: 28672K/32768K available (2883K kernel code, 116K rwdata, 640K rodata, 128K init, 94K bss, 4096K reserved, 0K cma-reserved) mem_init_done ........................................... NR_IRQS:32 nr_irqs:32 0 clocksource: openrisc_timer: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 95563022313 ns 40.00 BogoMIPS (lpj=200000) pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 2048 (order: 0, 8192 bytes) Mountpoint-cache hash table entries: 2048 (order: 0, 8192 bytes) devtmpfs: initialized clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns NET: Registered protocol family 16 clocksource: Switched to clocksource openrisc_timer NET: Registered protocol family 2 TCP established hash table entries: 2048 (order: 0, 8192 bytes) TCP bind hash table entries: 2048 (order: 0, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) UDP hash table entries: 512 (order: 0, 8192 bytes) UDP-Lite hash table entries: 512 (order: 0, 8192 bytes) NET: Registered protocol family 1 RPC: Registered named UNIX socket transport module. RPC: Registered udp transport module. RPC: Registered tcp transport module. RPC: Registered tcp NFSv4.1 backchannel transport module. futex hash table entries: 256 (order: -2, 3072 bytes) workingset: timestamp_bits=30 max_order=12 bucket_order=0 Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled 90000000.serial: ttyS0 at MMIO 0x90000000 (irq = 2, base_baud = 1250000) is a 16550A console [ttyS0] enabled console [ttyS0] enabled bootconsole [uart0] disabled bootconsole [uart0] disabled libphy: Fixed MDIO Bus: probed NET: Registered protocol family 17 devtmpfs: mounted Freeing unused kernel memory: 128K This architecture does not have kernel memory protection. Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance. ---[ end Kernel panic - not syncing: No working init found. Try passing init= option to kernel. See Linux Documentation/admin-guide/init.rst for guidance.
