linux-kernel - [PATCH 0/2] ARM: owl: Add CubieBoard6

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Message-Id: <20170911005805.10116-1-afaerber@suse.de>
Date:   Mon, 11 Sep 2017 02:58:03 +0200
From:   Andreas Färber <afaerber@...e.de>
To:     Andreas Färber <afaerber@...e.de>,
        linux-arm-kernel@...ts.infradead.org
Cc:     Thomas Liau <thomas.liau@...ions-semi.com>,
        张东风 <zhangdf@...ions-semi.com>,
        刘炜 <liuwei@...ions-semi.com>,
        张天益 <tyzhang@...ions-semi.com>,
        梅利 <harrymei@...ions-semi.com>,
        support@...ietech.com, linux-kernel@...r.kernel.org,
        Ahha Lee <lee@...ietech.com>
Subject: [PATCH 0/2] ARM: owl: Add CubieBoard6

Hello,

This series prepares the Cubietech CubieBoard6, based on Actions Semi S500.

Cf. https://en.opensuse.org/HCL:CubieBoard6

With this Device Tree it starts to boot, but it gets stuck during earlycon:

[    0.899855] cpuidle: using governor ladder
[    0.904118] Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP ARM
[    0.911498] Modules linked in:
[    0.914552] CPU: 3 PID: 1 Comm: swapper/0 Not tainted 4.13.0-next-20170908-00003-gbc21950343e1 #38
[    0.923486] Hardware name: Generic DT based system
[    0.928263] task: ee833840 task.stack: ee834000
[    0.932804] PC is at arch_hw_breakpoint_init+0xa0/0x2ac
[    0.938015] LR is at arch_hw_breakpoint_init+0x88/0x2ac
[    0.943223] pc : [<c09044a0>]    lr : [<c0904488>]    psr: 60000013
[    0.949469] sp : ee835ef8  ip : c09005a0  fp : 00000000
[    0.954676] r10: c092e83c  r9 : 0000009a  r8 : c0939624
[    0.959882] r7 : c092e828  r6 : c0a3463c  r5 : c0a3463c  r4 : 00000001
[    0.966388] r3 : 0000000f  r2 : 510002d0  r1 : 00000000  r0 : 00000003
[    0.972898] Flags: nZCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
[    0.980013] Control: 10c5387d  Table: 0000404a  DAC: 00000051
[    0.985740] Process swapper/0 (pid: 1, stack limit = 0xee834218)
[    0.991727] Stack: (0xee835ef8 to 0xee836000)
[    0.996069] 5ee0:                                                       c0a24844 c0a2b47c
[    1.004228] 5f00: 00000000 c05adf6c 00000003 c0904400 00000000 c01019f0 0000009a 0000009a
[    1.012388] 5f20: eeff7200 eeff72c9 c08a5aec 0000009a 0000009a c0137b54 c08a4ee4 00000000
[    1.020546] 5f40: 00000003 00000003 eeff72c9 eeff72d1 c0a0b7f4 00000003 c0a34300 c0a34300
[    1.028704] 5f60: 00000003 c0a34300 c0a34300 c0939624 0000009a c0900dd0 00000003 00000003
[    1.036862] 5f80: 00000000 c09005a0 00000000 c06d6cac 00000000 00000000 00000000 00000000
[    1.045020] 5fa0: 00000000 c06d6cb4 00000000 c01079e0 00000000 00000000 00000000 00000000
[    1.053177] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    1.061335] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 ffffffff ffffffff
[    1.069521] [<c09044a0>] (arch_hw_breakpoint_init) from [<c01019f0>] (do_one_initcall+0x40/0x16c)
[    1.078385] [<c01019f0>] (do_one_initcall) from [<c0900dd0>] (kernel_init_freeable+0x144/0x1e0)
[    1.087081] [<c0900dd0>] (kernel_init_freeable) from [<c06d6cb4>] (kernel_init+0x8/0x110)
[    1.095252] [<c06d6cb4>] (kernel_init) from [<c01079e0>] (ret_from_fork+0x14/0x34)
[    1.102807] Code: 0a000002 e3500005 13a04000 ea000001 (ee114e91) 
[    1.108892] ---[ end trace 7c7f41a8afd53875 ]---
[    1.113517] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

The same kernel zImage binary boots fine on Guitar, where I instead get:

[    0.865476] cpuidle: using governor ladder
[    0.866283] hw-breakpoint: found 5 (+1 reserved) breakpoint and 1 watchpoint registers.
[    0.866385] hw-breakpoint: maximum watchpoint size is 4 bytes.

I have tested this both with and without owl_secondary_boot(), i.e. my SMP patch series.

Work branch for testing:
https://github.com/afaerber/linux/commits/bg96-next

Cheers,
Andreas

Cc: Ahha Lee <lee@...ietech.com>
Cc: support@...ietech.com

Andreas Färber (2):
  dt-bindings: arm: actions: Add CubieBoard6
  ARM: dts: owl-s500: Add CubieBoard6

 Documentation/devicetree/bindings/arm/actions.txt |  1 +
 arch/arm/boot/dts/Makefile                        |  1 +
 arch/arm/boot/dts/owl-s500-cubieboard6.dts        | 44 +++++++++++++++++++++++
 3 files changed, 46 insertions(+)
 create mode 100644 arch/arm/boot/dts/owl-s500-cubieboard6.dts

-- 
2.13.5