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Subject[PATCH 0/2] ARM: owl: Add CubieBoard6
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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@cubietech.com>
Cc: support@cubietech.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

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