kernel lock debugging unveiled that we should not call
of_reset_control_get inside a clock's enable operation (see below)
move of_reset_control_* previously used in pllb_clk_enable to new
pllb_clk_prepare and pllb_clk_unprepare functions.
use a container to carry runtime information.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 1 at kernel/locking/lockdep.c:2742 lockdep_trace_alloc+0xb8/0xfc()
DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.14.26 #6
[<c001a6ac>] (unwind_backtrace) from [<c0016dec>] (show_stack+0x10/0x14)
[<c0016dec>] (show_stack) from [<c0194f68>] (dump_stack+0x7c/0x94)
[<c0194f68>] (dump_stack) from [<c0021b50>] (warn_slowpath_common+0x68/0x8c)
[<c0021b50>] (warn_slowpath_common) from [<c0021ba4>] (warn_slowpath_fmt+0x30/0x40)
[<c0021ba4>] (warn_slowpath_fmt) from [<c0061b30>] (lockdep_trace_alloc+0xb8/0xfc)
[<c0061b30>] (lockdep_trace_alloc) from [<c00cb740>] (kmem_cache_alloc+0x1c/0xf8)
[<c00cb740>] (kmem_cache_alloc) from [<c01d33c8>] (of_reset_control_get+0xe8/0x12c)
[<c01d33c8>] (of_reset_control_get) from [<c0269228>] (pllb_clk_enable+0x14/0xbc)
[<c0269228>] (pllb_clk_enable) from [<c0265738>] (__clk_enable+0x54/0xa0)
[<c0265738>] (__clk_enable) from [<c0265acc>] (clk_enable+0x18/0x2c)
[<c0265acc>] (clk_enable) from [<c04325f8>] (oxnas_pcie_probe+0x3b8/0x6a0)
[<c04325f8>] (oxnas_pcie_probe) from [<c01f2510>] (platform_drv_probe+0x18/0x48)
[<c01f2510>] (platform_drv_probe) from [<c01f1070>] (driver_probe_device+0xd8/0x24c)
[<c01f1070>] (driver_probe_device) from [<c01f1298>] (__driver_attach+0x70/0x94)
[<c01f1298>] (__driver_attach) from [<c01ef728>] (bus_for_each_dev+0x4c/0x98)
[<c01ef728>] (bus_for_each_dev) from [<c01f0818>] (bus_add_driver+0xcc/0x1e8)
[<c01f0818>] (bus_add_driver) from [<c01f169c>] (driver_register+0xa0/0xe8)
[<c01f169c>] (driver_register) from [<c01f2568>] (platform_driver_probe+0x20/0xa4)
[<c01f2568>] (platform_driver_probe) from [<c0013a3c>] (do_one_initcall+0x90/0x140)
[<c0013a3c>] (do_one_initcall) from [<c0421d38>] (kernel_init_freeable+0x1e4/0x2c0)
[<c0421d38>] (kernel_init_freeable) from [<c000c214>] (kernel_init+0x8/0x104)
[<c000c214>] (kernel_init) from [<c0008768>] (ret_from_fork+0x14/0x2c)
---[ end trace 5f17ed2f61e0683f ]---
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43787
safed one level of indention by using 'continue' instead of a
lengthy if-clause.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
v2: use logic-AND instead of '?' operator when checking for hw bug 6320
SVN-Revision: 43768
- replaced // comments by /* comments */
- added line-breaks where needed
- fixed white-space according to kernel style
- fixed some obvious spelling mistakes in comments and printks
- removed some unneeded left-overs imported from vendor code-base
- replaced printk(...) by libata macros where possible
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43767
locking for 2nd port and hwraid was added from vendor's GPL code which
doesn't comply with current kernel coding style.
- moved all global variables into host_priv
- renamed locks
- sanetized acquire() and release() parameter list
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43766
and no longer compile-in ext4 filesystem now that sata_oxnas is
also built as a module.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43765
This new argument is used right after starting regular preinit (which
happens if failsafe wasn't triggered). The main purpose of "preinit"
argument is to indicate that failsafe can be triggered, however we were
missing a way to inform user that we don't wait for a trigger anymore.
With this change it's clear when failsafe mode can be triggered.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 43715
Restoring the config for kernel 3.14 didn't contain that change already
made to config-3.18.
It is needed to make squashfs in the kernel match the compression settings
for ARCH=arm in the framework.
If set to ARMTHUMB, boot fails due to squashfs being unreadable if the
filesystem was generated for wth ARM BCJ filter.
in include/image.mk: BCJ_FILTER:=-Xbcj $(LINUX_KARCH)
Thus the ARM filter is used for all ARM targets.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43640
similar to mv_sata, use nr-ports attribute from device tree.
import and adapt locking code from vendor GPL sources.
add dma controller handling, it may be used in future to avoid
full core resets similar to the vendor SDK's "progressive cleanup"
function.
this is still very dirty and aimed to first of all do things
quite exactly like the reference code. and it somehow works.
obviously there is lots of room for improvement :)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43598
sata_oxnas.c is obviously a refactored version of sata_ox820.c
which does contain this header.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43597
This reverts commit c81ddddde5fd193802d511b42eb7b108aac17136 on
https://gitorious.org/openwrt-oxnas/openwrt-oxnas.git
which removed patches and config for 3.14.
[arm_introduce-dma-fiq-irq-broadcast patch was renamed to match 3.18]
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43520
similar to what was observed on kirkwood this significantly accelerates
btrfs write operations.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43498
gpio-beeper module was added to the kernel recently.
Make use of it to drive the piezoelectric buzzer of the kd20.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43496
This is the oxnas target previously developed at
http://gitorious.org/openwrt-oxnas
Basically, this consolidates the changes and addtionas from
http://github.org/kref/linux-oxnas
into a new OpenWrt hardware target 'oxnas' adding support for
PLX Technology NAS7820/NAS7821/NAS7825/...
formally known as
Oxford Semiconductor OXE810SE/OXE815/OX820/...
For now there are 4 supported boards:
Cloud Engines Pogoplug V3 (without PCIe)
fully supported
Cloud Engines Pogoplug Pro (with PCIe)
fully supported
MitraStar STG-212
aka ZyXEL NSA-212,
aka Medion Akoya P89625 / P89636 / P89626 / P89630,
aka Medion MD 86407 / MD 86805 / MD 86517 / MD 86587
fully supported, see http://wiki.openwrt.org/toh/medion/md86587
Shuttle KD-20
partially supported (S-ATA driver lacks support for 2nd port)
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
SVN-Revision: 43388
