phases, so move the initialization of the ksyms mutex back into main via
a function called ksyms_init. Rename the existing (but quite different)
ksyms_init* variations into ksyms_addsyms_elf() and ksyms_addsyms_explicit()
and adapt machdep code accordingly.
doshutdownhooks(9): shutdown hooks registered by shutdownhook_establish(9)
expect to be called with interrupts disabled, but shutdown hooks
registered with pmf_device_register1(9) expect to be called with
interrupts enabled. So I have made two changes:
1 Do not call pmf_system_shutdown() from doshutdownhooks(). Instead,
change every call to doshutdownhooks() to a call to doshutdownhooks()
followed by a call to pmf_system_shutdown(). No functional change
is intended by this change.
2 Make i386 re-enable interrupts briefly while it calls
pmf_system_shutdown(). I leave it to others either to fix the
other ports, or to factor out some MI shutdown code, as joerg@
suggests, and fix that. Note that a functional change *is* intended
by this change.
I hope that this patch will stop us from flip-flopping between
calling doshutdownhooks() and pmf_system_shutdown() sometimes with
and sometimes without interrupts enabled.
reorganized MI i2c_bitbang.c:
- set GPOER register in set_dir function too according to GPOUTR value
- in set_bits function, don't set SDA_BIT implicitly in input mode and
check current direction to handle GPOER register
- no need to check direction in read_check function because reading SCL
is valid even if SDA is output
Tested by Donald T Hayford on port-arm.
the SDA/SCL pin direction, by treating the direction as just that; a hint.
Instead, configure the SDA/SCL pins as outputs only when they are to
be driven low (zero). Otherwise configure them as inputs and allow the
pull-up resistors to do their jobs.
Check the SDA direction hint only if DIAGNOSTIC.
Fixes a problem reported by Donald T Hayford on port-arm@ whereby the
kernel failed to read/write the RTC's registers.
This branch was a major cleanup and rototill of many of the various OEA
cpu based PPC ports that focused on sharing as much code as possible
between the various ports to eliminate near-identical copies of files in
every tree. Additionally there is a new PIC system that unifies the
interface to interrupt code for all different OEA ppc arches. The work
for this branch was done by a variety of people, too long to list here.
TODO:
bebox still needs work to complete the transition to -renovation.
ofppc still needs a bunch of work, which I will be looking at.
ev64260 still needs to be renovated
amigappc was not attempted.
NOTES:
pmppc was removed as an arch, and moved to a evbppc target.
determine accurately which LED to illuminate.
Instead, hook into the PCI[ABC] interrupt chains (used solely for the
USB controller) and use the disk1/disk2 LEDS to indicate general USB
activity.
Use the "Ready/Status" LED as a CPU activity indicator by hooking the
TMR0 interrupt and illuminating the LED if the CPU is non-idle.
The NSLU2 (Network Storage Link for USB 2.0 Disk Drives) is a small, *cheap*
NAS device consisting of an Intel IXP420 (Xscale) CPU, a 10/100mbit Ethernet
port, and two USB 2.0 ports. It has 32MB of SDRAM and 8MB of Flash memory,
and runs RedBoot/Linux out of the box. Now it can also run NetBSD.
