On Sat, October 11, 2014 1:07 pm, Jonathan Gray wrote:
> As pointed out by Patrick Wildt, it seems ahci will
> need some quirks for the A20.
>
> https://github.com/bitrig/bitrig/commit/6342a27bfe4dc590f8e266e370f54846a766a737
>

Note that this alone won't make it boot. There are still other issues.
The current sxitimer(4) doesn't work on A20, and then there are pmap problems,
I guess..

> On Fri, Oct 10, 2014 at 02:16:51PM -0700, Tracy Bales wrote:
>> U-Boot SPL 2014.01-rc1-09154-gfb357b4 (Jan 07 2014 - 22:30:46)
>> Board: Cubieboard2
>> dram: 1024 MiB
>> CPU: 960000000Hz, AXI/AHB/APB: 3/2/2
>> spl: not an uImage at 1600
>>
>>
>> U-Boot 2014.01-rc1-09154-gfb357b4 (Jan 07 2014 - 22:30:46) Allwinner
>> Technology
>>
>> CPU:   Allwinner A20 (SUN7I)
>> Board: Cubieboard2
>> I2C:   ready
>> DRAM:  1 GiB
>> WARNING: Caches not enabled
>> MMC:   SUNXI SD/MMC: 0
>> *** Warning - bad CRC, using default environment
>>
>> In:    serial
>> Out:   serial
>> Err:   serial
>> Net:   mii0
>> Warning: failed to set MAC address
>>
>> Hit any key to stop autoboot:  0
>> reading uEnv.txt
>> 96 bytes read in 4 ms (23.4 KiB/s)
>> Loaded environment from uEnv.txt
>> Running uenvcmd ...
>> reading bsd.umg
>> 7386560 bytes read in 348 ms (20.2 MiB/s)
>> ## Booting kernel from Legacy Image at 40200000 ...
>>    Image Name:   boot
>>    Created:      2014-10-09  10:04:44 UTC
>>    Image Type:   ARM Linux Kernel Image (uncompressed)
>>    Data Size:    7386496 Bytes = 7 MiB
>>    Load Address: 40800000
>>    Entry Point:  40800000
>>    Verifying Checksum ... OK
>>    Loading Kernel Image ... OK
>>
>> Starting kernel ...
>>
>>
>> OpenBSD/sunxi booting ...
>> arg0 0x0 arg1 0x10bb arg2 0x40000100
>> atag core flags 0 pagesize 0 rootdev 0
>> atag mem start 0x40000000 size 0x40000000
>> bootfile:
>> bootargs:
>> memory size derived from u-boot
>> bootconf.mem[0].address = 40000000 pages 262144/0x40000000
>> Allocating page tables
>> freestart = 0x40f0c000, free_pages = 258292 (0x0003f0f4)
>> IRQ stack: p0x40f3a000 v0xc0f3a000
>> ABT stack: p0x40f3b000 v0xc0f3b000
>> UND stack: p0x40f3c000 v0xc0f3c000
>> SVC stack: p0x40f3d000 v0xc0f3d000
>> Creating L1 page table at 0x40f0c000
>> Mapping kernel
>> Constructing L2 page tables
>> undefined page pmap [ using 170728 bytes of bsd ELF symbol table ]
>> Copyright (c) 1982, 1986, 1989, 1991, 1993
>>         The Regents of the University of California.  All rights reserved.
>> Copyright (c) 1995-2014 OpenBSD. All rights reserved.
>> http://www.OpenBSD.org
>>
>> OpenBSD 5.6-current (RAMDISK-SUNXI) #1: Thu Oct  9 21:03:32 AEDT 2014
>>     r...@armv7.jsg.id.au:/usr/src/sys/arch/armv7/compile/RAMDISK-SUNXI
>> real mem  = 1073741824 (1024MB)
>> avail mem = 1036165120 (988MB)
>> warning: no entropy supplied by boot loader
>> mainbus0 at root
>> cortex0 at mainbus0
>> ampintc0 at cortex0 nirq 160
>> cpu0 at mainbus0: ARM Cortex A7 rev 4 (ARMv7 core)
>> cpu0: DC enabled IC enabled WB disabled EABT branch prediction enabled
>> cpu0: 32KB(32b/l,2way) I-cache, 32KB(64b/l,4way) wr-back D-cache
>> sunxi0 at mainbus0: A20
>> sxipio0 at sunxi0
>> sxiccmu0 at sunxi0
>> sxitimer0 at sunxi0: ticktimer 100hz @ 32KHz
>> sxitimer1 at sunxi0: stattimer 128hz @ 32KHz
>> sxitimer2 at sunxi0: cntrtimer @ 32KHz
>> sxidog0 at sunxi0
>> sxirtc0 at sunxi0
>> sxiuart0 at sunxi0: console
>> sxiuart1 at sunxi0
>> sxiuart2 at sunxi0
>> sxiuart3 at sunxi0
>> sxiuart4 at sunxi0
>> sxiuart5 at sunxi0
>> sxiuart6 at sunxi0
>> sxiuart7 at sunxi0
>> sxie0 at sunxi0, address 02:18:05:c1:40:c4
>> rlphy0 at sxie0 phy 1: RTL8201L 10/100 PHY, rev. 1
>> ahci0 at sunxi0 AHCI 1.1
>> pmap_fault_fixup: va c5544000 ftype 2 s pte 7ff9301e
>> panic: uvm_fault: fault on non-pageable map (0xc0e7f28c, 0xc5544000)
>> Stopped at      Debugger+0x4:   ldrb    r15, [r15, r15, ror r15]!
>> panic+0x18
>>         scp=0xc083a39c rlv=0xc08c2f54 (uvm_fault+0xca8)
>>         rsp=0xc0f3eaec rfp=0xc0f3ec0c
>> uvm_fault+0xc
>>         scp=0xc08c22b8 rlv=0xc08fe588 (data_abort_handler+0x248)
>>         rsp=0xc0f3ec10 rfp=0xc0f3ec64
>>         r10=0xc0f3ec68 r9=0xc0f3d000 r8=0x00000000 r7=0xc0e9f764
>>         r6=0x00000002 r5=0xc0ebc7b4 r4=0xc5544000
>> data_abort_handler+0xc
>>         scp=0xc08fe34c rlv=0xc08fdd54 (address_exception_entry+0x50)
>>         rsp=0xc0f3ec68 rfp=0xc0f3eccc
>>         r10=0xc0ebd1b4 r9=0x00000200 r8=0x0000014c r7=0x0000000a
>>         r6=0x00000009 r5=0xc5544e00 r4=0x00000010
>> poison_mem+0xc
>>         scp=0xc0835bb8 rlv=0xc081df20 (malloc+0x2ec)
>>         rsp=0xc0f3ecd0 rfp=0xc0f3ed38
>>         r5=0xc5544000 r4=0xc5544e00
>> malloc+0x10
>>         scp=0xc081dc44 rlv=0xc08fcee8 (_bus_dmamap_create+0x40)
>>         rsp=0xc0f3ed3c rfp=0xc0f3ed5c
>>         r10=0x00000000 r9=0x7ff97000 r8=0x00000000 r7=0x00000003
>>         r6=0x00010000 r5=0x00400000 r4=0x00000018
>> _bus_dmamap_create+0x10
>>         scp=0xc08fceb8 rlv=0xc0804384 (ahci_port_alloc+0x34c)
>>         rsp=0xc0f3ed60 rfp=0xc0f3edb0
>>         r7=0xc553b200 r6=0xc548a200 r5=0xc5542000 r4=0x00000000
>> ahci_port_alloc+0x10
>>         scp=0xc0804048 rlv=0xc0804814 (ahci_attach+0x80)
>>         rsp=0xc0f3edb4 rfp=0xc0f3ede8
>>         r10=0xc0f3ee5c r9=0xc0f3ee5c r8=0x00000000 r7=0xc553b200
>>         r6=0xc553b200 r5=0x00000001 r4=0x00000000
>> ahci_attach+0xc
>>         scp=0xc08047a0 rlv=0xc0931fb0 (sxiahci_attach+0x480)
>>         rsp=0xc0f3edec rfp=0xc0f3ee18
>>         r6=0xc0904420 r5=0x00000000 r4=0xd1135000
>> sxiahci_attach+0x10
>>         scp=0xc0931b40 rlv=0xc08309e0 (config_attach+0x1d4)
>>         rsp=0xc0f3ee1c rfp=0xc0f3ee54
>>         r10=0x00000000 r8=0xc0ec0290 r7=0xc553d0c0 r6=0xc0970750
>>         r5=0xc553b214 r4=0xc553b200
>> config_attach+0xc
>>         scp=0xc0830818 rlv=0xc0906d9c (armv7_attach+0x144)
>>         rsp=0xc0f3ee58 rfp=0xc0f3ee90
>>         r10=0x00000000 r9=0xc0f3eed0 r8=0xc0e74534 r7=0xc553d0c0
>>         r6=0xc0e79a6c r5=0xc0e76b24 r4=0xc0e76628
>> RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC!
>> DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION!
>> ddb> trace
>> panic+0x18
>>         scp=0xc083a39c rlv=0xc08c2f54 (uvm_fault+0xca8)
>>         rsp=0xc0f3eaec rfp=0xc0f3ec0c
>> uvm_fault+0xc
>>         scp=0xc08c22b8 rlv=0xc08fe588 (data_abort_handler+0x248)
>>         rsp=0xc0f3ec10 rfp=0xc0f3ec64
>>         r10=0xc0f3ec68 r9=0xc0f3d000 r8=0x00000000 r7=0xc0e9f764
>>         r6=0x00000002 r5=0xc0ebc7b4 r4=0xc5544000
>> data_abort_handler+0xc
>>         scp=0xc08fe34c rlv=0xc08fdd54 (address_exception_entry+0x50)
>>         rsp=0xc0f3ec68 rfp=0xc0f3eccc
>>         r10=0xc0ebd1b4 r9=0x00000200 r8=0x0000014c r7=0x0000000a
>>         r6=0x00000009 r5=0xc5544e00 r4=0x00000010
>> poison_mem+0xc
>>         scp=0xc0835bb8 rlv=0xc081df20 (malloc+0x2ec)
>>         rsp=0xc0f3ecd0 rfp=0xc0f3ed38
>>         r5=0xc5544000 r4=0xc5544e00
>> malloc+0x10
>>         scp=0xc081dc44 rlv=0xc08fcee8 (_bus_dmamap_create+0x40)
>>         rsp=0xc0f3ed3c rfp=0xc0f3ed5c
>>         r10=0x00000000 r9=0x7ff97000 r8=0x00000000 r7=0x00000003
>>         r6=0x00010000 r5=0x00400000 r4=0x00000018
>> _bus_dmamap_create+0x10
>>         scp=0xc08fceb8 rlv=0xc0804384 (ahci_port_alloc+0x34c)
>>         rsp=0xc0f3ed60 rfp=0xc0f3edb0
>>         r7=0xc553b200 r6=0xc548a200 r5=0xc5542000 r4=0x00000000
>> ahci_port_alloc+0x10
>>         scp=0xc0804048 rlv=0xc0804814 (ahci_attach+0x80)
>>         rsp=0xc0f3edb4 rfp=0xc0f3ede8
>>         r10=0xc0f3ee5c r9=0xc0f3ee5c r8=0x00000000 r7=0xc553b200
>>         r6=0xc553b200 r5=0x00000001 r4=0x00000000
>> ahci_attach+0xc
>>         scp=0xc08047a0 rlv=0xc0931fb0 (sxiahci_attach+0x480)
>>         rsp=0xc0f3edec rfp=0xc0f3ee18
>>         r6=0xc0904420 r5=0x00000000 r4=0xd1135000
>> sxiahci_attach+0x10
>>         scp=0xc0931b40 rlv=0xc08309e0 (config_attach+0x1d4)
>>         rsp=0xc0f3ee1c rfp=0xc0f3ee54
>>         r10=0x00000000 r8=0xc0ec0290 r7=0xc553d0c0 r6=0xc0970750
>>         r5=0xc553b214 r4=0xc553b200
>> config_attach+0xc
>>         scp=0xc0830818 rlv=0xc0906d9c (armv7_attach+0x144)
>>         rsp=0xc0f3ee58 rfp=0xc0f3ee90
>>         r10=0x00000000 r9=0xc0f3eed0 r8=0xc0e74534 r7=0xc553d0c0
>>         r6=0xc0e79a6c r5=0xc0e76b24 r4=0xc0e76628
>> armv7_attach+0x10
>>         scp=0xc0906c68 rlv=0xc08309e0 (config_attach+0x1d4)
>>         rsp=0xc0f3ee94 rfp=0xc0f3eecc
>>         r8=0xc0ec0290 r7=0xc553d000 r6=0xc0e78c40 r5=0xc553d0d4
>>         r4=0xc553d0c0
>> config_attach+0xc
>>         scp=0xc0830818 rlv=0xc08f83fc (mainbussearch+0x54)
>>         rsp=0xc0f3eed0 rfp=0xc0f3eef4
>>         r10=0x00000000 r9=0x00000000 r8=0xc0e727e4 r7=0xc0f3eed0
>>         r6=0xc553d000 r5=0xc0970468 r4=0xc0e78c2c
>> mainbussearch+0xc
>>         scp=0xc08f83b4 rlv=0xc08305cc (config_scan+0x13c)
>>         rsp=0xc0f3eef8 rfp=0xc0f3ef1c
>>         r7=0xc0970468 r6=0xc0970468 r5=0xc553d000 r4=0xc0f3ef20
>> config_scan+0xf4
>>         scp=0xc0830584 rlv=0xc08307ec (config_search+0x11c)
>>         rsp=0xc0f3ef20 rfp=0xc0f3ef58
>>         r8=0xc0ec0290 r7=0xc0970168 r6=0xc0970468 r5=0xc553d000
>>         r4=0xc0970154
>> config_search+0x10
>>         scp=0xc08306e0 rlv=0xc08309e0 (config_attach+0x1d4)
>>         rsp=0xc0f3ef5c rfp=0xc0f3ef94
>>         r7=0x00000000 r6=0xc0e74388 r5=0xc553d014 r4=0xc553d000
>> config_attach+0xc
>>         scp=0xc0830818 rlv=0xc0907e1c (cpu_configure+0x20)
>>         rsp=0xc0f3ef98 rfp=0xc0f3efa8
>>         r10=0xc0ebc7b4 r9=0xc0ebd6cc r8=0xc0ebc94c r7=0xc0ebc638
>>         r6=0x00000000 r5=0xc0ebc5b4 r4=0xc0edfe9c
>> cpu_configure+0xc
>>         scp=0xc0907e08 rlv=0xc081548c (main+0x340)
>>         rsp=0xc0f3efac rfp=0xc0f3efec
>> main+0x10
>>         scp=0xc081515c rlv=0xc080017c (kernel_text+0x4c)
>>         rsp=0xc0f3eff0 rfp=0xc0f3effc
>>         r10=0x00000000 r9=0x7fe67f40 r8=0x40000100 r7=0x000010bb
>>         r6=0x40000100 r5=0x000010bb r4=0x40800120
>> kernel_text+0x48
>>         scp=0xc0800178 rlv=0xc09079f0 (initarm+0x820)
>>         rsp=0xc0f3f000 rfp=0x00000000
>> ddb> ps
>>    PID   PPID   PGRP    UID  S       FLAGS  WAIT          COMMAND
>> *    0     -1      0      0  7     0x10200                swapper
>> ddb>
>
>


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