ARM: Kirkwood: Convert to pinctrl

Michael Walle linux-arm-kernel 1 version Oct 24, 2012 New

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v1 Latest Oct 24, 20121 of 9 patches 0 repliesNew

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#	Subject and files	Size	Replies	Applied
8/9	ARM: Kirkwood: Convert lsxl boards to pinctrl.	+0 -0	0 replies

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Cover letter [PATCH 0/9] ARM: Kirkwood: Convert to pinctrl

Hi Andrew,

Am Mittwoch 24 Oktober 2012, 16:53:45 schrieb Andrew Lunn:

Quoted 10 lines

This patchset converts all DT kirkwood boards to using pinctrl.
This patchset depends on an earlier patchset to allow the mvebu pinctrl driver and gpio driver to be built for kirkwood.
Only the TS219 conversion has been tested on hardware. The remaining are compile tested. Before merging upstream, it would be good if the others could be tested on hardware.
This series along with the dependents can be found in:

Unfortunately, this doesn't work for me. git bisect tells me its commit e01139ec82162f21875d09e820686aede4219695.

I guess it has something to do with the lsxl_init calling gpio_set_value().

Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0
Linux version 3.7.0-rc2-00015-g2773c33 (mw at thanatos) (gcc version 4.4.5 (Debian 4.4.5-8) ) #8 PREEMPT Wed Oct 24 20:05:32 CEST 2012
CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=00053977
CPU: VIVT data cache, VIVT instruction cache
Machine: Marvell Kirkwood (Flattened Device Tree), model: Buffalo Linkstation LS-CHLv2
bootconsole [earlycon0] enabled
Memory policy: ECC disabled, Data cache writeback
Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 Kernel command line: console=ttyS0,115200 root=/dev/sda2 earlyprintk PID hash table entries: 256 (order: -2, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 64MB = 64MB total
Memory: 55828k/55828k available, 9708k reserved, 0K highmem Virtual kernel memory layout:

    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
    vmalloc : 0xc4800000 - 0xff000000   ( 936 MB)
    lowmem  : 0xc0000000 - 0xc4000000   (  64 MB)
    modules : 0xbf000000 - 0xc0000000   (  16 MB)
      .text : 0xc0008000 - 0xc04e2660   (4970 kB)
      .init : 0xc04e3000 - 0xc0506cc0   ( 144 kB)
      .data : 0xc0508000 - 0xc0540280   ( 225 kB)
       .bss : 0xc05402a4 - 0xc05d7a3c   ( 606 kB)

SLUB: Genslabs=13, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 NR_IRQS:114
sched_clock: 32 bits at 166MHz, resolution 5ns, wraps every 25769ms
Console: colour dummy device 80x30
Calibrating delay loop... 597.60 BogoMIPS (lpj=2988032)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
Setting up static identity map for 0x3baaa8 - 0x3baae4 pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 1024 KiB pool for atomic coherent allocations
Kirkwood: MV88F6281-A1, TCLK=166666667.
Feroceon L2: Enabling L2
Feroceon L2: Cache support initialised.

Unable to handle kernel NULL pointer dereference at virtual address 0000003c
pgd = c0004000
[0000003c] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT ARM
Modules linked in:
CPU: 0    Not tainted  (3.7.0-rc2-00015-g2773c33 #8)
PC is at __gpio_set_value+0x20/0xb4
LR is at lsxl_init+0x14/0x58
pc : [<c01ab75c>]    lr : [<c04e99d0>]    psr: 20000053

sp : c342ff20 ip : 00000000 fp : 00000000
r10: 00000089 r9 : c0506878 r8 : c04e4498
r7 : 00000000 r6 : c05cea18 r5 : 00000000 r4 : 0000000b r3 : 00000084 r2 : 00000001 r1 : 00000001 r0 : 0000000b
Flags: nzCv IRQs on FIQs off Mode SVC_32 ISA ARM Segment kernel
Control: 0005397f Table: 00004000 DAC: 00000017
Process swapper (pid: 1, stack limit = 0xc342e1b8)

Stack: (0xc342ff20 to 0xc3430000)

ff20: 00000037 c3b5508c c0516230 00000004 c05402c0 c04e99d0 c05005f8 c04e9640
ff40: c05005f8 c04e44b4 c05005f8 c0008614 00000003 00000003 00000000 c05005f8
ff60: c05005f8 00000004 c05402c0 c0500610 c04e31b0 00000089 00000000 c03ab064
ff80: 00000003 00000003 c04e31b0 c03aaf74 00000000 c03aaf74 00000000 00000000
ffa0: 00000000 00000000 00000000 c0008dd0 00000000 00000000 00000000 00000000
ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
ffe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 [<c01ab75c>] (__gpio_set_value+0x20/0xb4) from [<c04e99d0>] (lsxl_init+0x14/0x58)
[<c04e99d0>] (lsxl_init+0x14/0x58) from [<c04e9640>] (kirkwood_dt_init+0xe4/0x158)
[<c04e9640>] (kirkwood_dt_init+0xe4/0x158) from [<c04e44b4>] (customize_machine+0x1c/0x28)
[<c04e44b4>] (customize_machine+0x1c/0x28) from [<c0008614>] (do_one_initcall+0x30/0x174)
[<c0008614>] (do_one_initcall+0x30/0x174) from [<c03ab064>] (kernel_init+0xf0/0x2a0)
[<c03ab064>] (kernel_init+0xf0/0x2a0) from [<c0008dd0>] (ret_from_fork+0x14/0x24)

Code: e24dd008 e1a04000 e7965003 e1a02001 (e5d5303c) 
---[ end trace 1b75b31a2719ed1c ]---
Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b

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Michael

Read the cover letter in its thread