Date: Thu, 23 Aug 2012 12:04:59 +0300 From: Aleksandr Rybalko <ray@ddteam.net> To: Youri Adonis <vrtuff@yahoo.com> Cc: freebsd-mips@FreeBSD.org Subject: Re: Support for mips74KC Message-ID: <20120823120459.edeb2916.ray@ddteam.net> In-Reply-To: <1345679204.91728.YahooMailClassic@web160706.mail.bf1.yahoo.com> References: <20120216155625.665708d8.ray@dlink.ua> <1345679204.91728.YahooMailClassic@web160706.mail.bf1.yahoo.com>
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On Wed, 22 Aug 2012 16:46:44 -0700 (PDT) Youri Adonis <vrtuff@yahoo.com> wrote: > I am happy to report that a quick checkout from zrouter build using > dir-620(mips24kc) profile allowed me to boot freebsd on a mips74kc > soc, RT3883 - (Edimax BR6475nd). > > Below is the console output with some debug info after it crashed: > > > ## Booting image at bc070000 ... > CSYS magic number at 0xBC070000 > Image Name: FreeBSD Kernel Image > Created: 2012-08-20 4:08:35 UTC > Image Type: MIPS Linux Kernel Image (lzma compressed) > Data Size: 1041935 Bytes = 1017.5 kB > Load Address: 80001000 > Entry Point: 80001000 > Verifying Checksum ... OK > Uncompressing Kernel Image ... OK > No initrd > ## Transferring control to Linux (at address 80001000) ... > ## Giving linux memsize in MB, 64 > > Starting kernel ... > > RT3883 runing with 500MHz clockM > System bus clock - 166MHz^M > System start from NOR flash storage > U-Boot args (from 4 args): > Environment:^M > entry: mips_init() > Cache info: > picache_stride = 4096^M > picache_loopcount = 16^M > pdcache_stride = 4096^M > pdcache_loopcount = 8^M > cpu0: MIPS Technologies processor v76.151^M > MMU: Standard TLB, 32 entries^M > L1 i-cache: 4 ways of 512 sets, 32 bytes per line^M > L1 d-cache: 4 ways of 256 sets, 32 bytes per line^M > Config1=0xbee3519e<PerfCount,WatchRegs,MIPS16,EJTAG>^M > Config3=0x2c20^M > KDB: debugger backends: ddb^M > KDB: current backend: ddb^M > Copyright (c) 1992-2012 The FreeBSD Project.^M > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, > 1994^M The Regents of the University of California. All rights > reserved.^M FreeBSD is a registered trademark of The FreeBSD > Foundation.^M FreeBSD 10.0-CURRENT #0: Mon Aug 20 04:06:56 UTC 2012^M > root@XXXXXXXX:/usr/src/zrouter/usr/src/zrouter/zrouter/tmp/mips.mipsel/usr/src/zrouter/FreeBSD/head/sys/usr/src/zrouter/usr/src/zrouter/zrouter/conf/D-Link_DIR-620 > mips^M real memory = 33554432 (32768K bytes)^M > avail memory = 27705344 (26MB)^M > random device not loaded; using insecure entropy^M > nexus0: <MIPS32 root nexus>^M > nvram2env0: Use NVRAM at 0x1f030000^M > nvram2env0: <NVRAM to ENV pseudo-device> on nexus0^M > Trap cause = 2 (TLB miss (load or instr. fetch) - kernel mode)^M > [ thread pid 0 tid 100000 ]^M > Stopped at strlen+0x10: lb v0,0(v1)^M > db> ^M > db> help^M > alltrace b break bt c call^M > capture continue countfreebufsd delete dhwatch^M > dump dwatch examine findstack gdb halt^M > hwatch kill match next p panic^M > print ps reboot reset run s^M > script scripts search set show step^M > t textdump thread trace unscript until^M > w watch watchdog where write x^M > db> where^M > Tracing pid 0 tid 100000 td 0x8039f870^M > 802e8ffc+c (?,?,?,?) ra 803f78b8 sp 803679750000005c sz 0^M > 80006f8c+a8 (186a0,?,8036e450,?) ra 20803f78b8 sp 803691e0000002a8 sz > 1^M 80006630+30 (?,?,?,?) ra 18803f78d8 sp 80364ccb00000204 sz 0^M > 800066f8+ac (?,?,?,?) ra 803f78f0 sp 80364ccb000002cc sz 0^M > pid 0^M > db> continue^M > panic: trap^M > KDB: enter: panic^M > [ thread pid 0 tid 100000 ]^M > Stopped at kdb_enter+0x4c: lui at,0x803b^M > db> continue^M > Uptime: 1s^M > Automatic reboot in 15 seconds - press a key on the console to abort^M > --> Press a key on the console to reboot,^M > --> or switch off the system now.^M > Rebooting...^M > Trap cause = 10 (reserved instruction - kernel mode)^M > [ thread pid 0 tid 100000 ]^M > Stopped at 0xbf001004: lld a2,t0,-12026^M > db> continue^M > panic: trap^M > KDB: enter: panic^M > [ thread pid 0 tid 100000 ]^M > Stopped at kdb_enter+0x4c: lui at,0x803b^M > db> continue^M > Uptime: 1s^M > Rebooting...^M > Trap cause = 10 (reserved instruction - kernel mode)^M > [ thread pid 0 tid 100000 ]^M > Stopped at 0xbf001004: lld a2,t0,20742^M > db> ^M > panic: trap^M > KDB: enter: panic^M > [ thread pid 0 tid 100000 ]^M > Stopped at kdb_enter+0x4c: lui at,0x803b^M > db> ^M > db> ps^M > pid ppid pgrp uid state wmesg wchan cmd^M > 13 0 0 0 RL [yarrow]^M > 12 0 0 0 RL (threaded) [geom]^M > 100008 RunQ [g_down]^M > 100007 RunQ [g_up]^M > 100006 RunQ [g_event]^M > 11 0 0 0 WL (threaded) [intr]^M > 100014 I [swi6: task > queue]^M 100013 I [swi6: > Giant taskq]^M 100011 I > [swi5: +]^M 100005 I > [swi3: vm]^M 100004 I > [swi4: clock]^M 100003 I > [swi1: netisr 0]^M 10 0 0 0 RL > [idle]^M 1 0 0 0 ?L [kernel]^M > 0 0 0 0 RLs (threaded) [kernel]^M > 100015 RunQ [kqueue taskq]^M > 100012 RunQ [thread taskq]^M > 100009 RunQ [firmware > taskq]^M 100000 Run CPU 0 > [swapper]^ > > > > > --- On Thu, 2/16/12, Aleksandr Rybalko <ray@dlink.ua> wrote: > > > From: Aleksandr Rybalko <ray@dlink.ua> > > Subject: Re: Support for mips74KC > > To: "Warner Losh" <imp@bsdimp.com> > > Cc: "Youri Adonis" <vrtuff@yahoo.com>, "Adrian Chadd" > > <adrian@FreeBSD.org>, freebsd-mips@FreeBSD.org Date: Thursday, > > February 16, 2012, 8:56 AM On Wed, 15 Feb 2012 10:37:12 -0700 > > Warner Losh <imp@bsdimp.com> > > wrote: > > > > >> > > >> On Feb 15, 2012, at 8:17 AM, Youri Adonis wrote: > > >> > I have a RT-N16 which I tried freebsd on > > through Rybalko's > > >> > broadcom work. I cannot get it to boot yet. It > > appears there is > > >> > some sort of 74kc support in NetBSD > > >> > > >> What support is missing in FreeBSD? > > > > CPU OS support only differ in two things (from NetBSD code) > > CPU_MIPS_HAVE_SPECIAL_CCA | (0 << > > CPU_MIPS_CACHED_CCA_SHIFT) > > MIPS_CP0FL_CONFIG6 > > > > 74k have "A 15-stage asymmetric dual-issue pipeline", 24k > > have only > > 8-stage, but: > > 1. our gcc know nothing about 74k. > > 2. clang seems same. > > > > I think if we add CPU_MIPS_HAVE_SPECIAL_CCA flag handling, > > it may run > > code compiled as mips24k, but I dunno how it will affect > > performance. > > > > Don't have such H/W, so can't check yet. > > > > Hope it will be not so big pain to add 74k to gcc. > > > > >> > > >> Warner > > >> > > >> _______________________________________________ > > >> freebsd-mips@freebsd.org > > mailing list > > >> http://lists.freebsd.org/mailman/listinfo/freebsd-mips > > >> To unsubscribe, send any mail to > > >> "freebsd-mips-unsubscribe@freebsd.org" > > > > > > -- > > Alexandr Rybalko <ray@dlink.ua> > > aka Alex RAY <ray@ddteam.net> > > Hi Youri, big thanks for report! can't wait to get some 74k device to play with. :) Any plans to submit patch to zrouter.org? :) Thanks again! WBW -- Aleksandr Rybalko <ray@ddteam.net>
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