Reorganise the IBM 4xx bus layout, using terminology from the IBM
documentation:
- Remove "mainbus" altogether.
- The new root is "plb" - the Processor Local Bus.
- Attached to this is the "opb" - the On-chip Peripheral Bus, to which
all the on-chip devices are attached (except the cpu and pci host
bridge).
- Port-specific code can pass an array of 'struct plb_dev' to
config_rootfound() to attach extra devices to the plb. The walnut
port attaches a "pbus" (Peripheral Bus) in here for the RTC and
pc keyboard controller to attach to.
There is still much 405GP specific code; the next round of changes will
generalise this to enable easier support for other 4xx CPUs.

branches: 1.4.4;
Adapt to the new, separate mainbus.

Include libkern.h for strcmp() prototype.

branches: 1.2.2;
Don't return at the end of a void function.

branches: 1.1.2; 1.1.6;
Move on-chip 405GP devices to powerpc/ibm4xx/dev.

Switch to intr_establish_xname().

branches: 1.24.2;
Style and cosmetic changes. No binary changes intended.

Belatedly catch up with MI com(4) change in com.c rev. 1.351:
http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/dev/ic/com.c#rev1.351

XXX
pullup to netbsd-9

branches: 1.22.4;
Clean up initialization of com_regs structure, in preparation for
some additional changers.

branches: 1.21.52; 1.21.54;
Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

branches: 1.20.36;
Split device_t and softc for all com(4) devices (well, everything that
uses a com_softc backend). Use proper types and ansify where appropriate.

branches: 1.19.22; 1.19.38; 1.19.42;
TRUE -> true, FALSE -> false

branches: 1.18.10;
Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@. Fixes PR port-evbmips/32362.

Put appropriate prefixes on property names to reduce chances of name
collisions.

branches: 1.16.4;
Unwrap not-too-long long.

Remove the devprop API and switch everthing over to the new proplib. Add
a new device_properties() accessor for device_t that returns the device's
property dictionary.

branches: 1.14.2; 1.14.4; 1.14.6;
- Don't expose dev_propdb directly -- provide devprop_*() wrappers instead.
- Rework the ARMADILLO / epe device properties interaction so that it actually
associates the MAC address property with the epe device instance.

branches: 1.13.2; 1.13.4; 1.13.6;
merge ktrace-lwp.

branches: 1.12.10;
Add functions:
- com_opb_cnattach
- com_opb_device_register

branches: 1.11.6;
__KERNEL_RCSID()

Check return value of prop_get() correctly; serial ports now attach on
a walnut, but don't seem to accept input(?!).

Consult the "frequency" property associated with the device in the
dev_propdb, rather than using "board_info".

branches: 1.8.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

branches: 1.4.2; 1.4.4;
Don't assume all com ports run at "COM_FREQ", or a multiple thereof.
Use a board-specific property instead.

Remove the "comfound < 2" bogosity.

Remove an unused global variable (that was marked with an XXX!).

branches: 1.1.2;
Reorganise the IBM 4xx bus layout, using terminology from the IBM
documentation:
- Remove "mainbus" altogether.
- The new root is "plb" - the Processor Local Bus.
- Attached to this is the "opb" - the On-chip Peripheral Bus, to which
all the on-chip devices are attached (except the cpu and pci host
bridge).
- Port-specific code can pass an array of 'struct plb_dev' to
config_rootfound() to attach extra devices to the plb. The walnut
port attaches a "pbus" (Peripheral Bus) in here for the RTC and
pc keyboard controller to attach to.
There is still much 405GP specific code; the next round of changes will
generalise this to enable easier support for other 4xx CPUs.

struct device * -> device_t
struct cfdata * -> cfdata_t
split device/softc (CFATTACH_DECL_NEW)
use device_accessors and device_private
constify

branches: 1.2.110;
merge ktrace-lwp.

branches: 1.1.4; 1.1.14;
Add functions:
- com_opb_cnattach
- com_opb_device_register

Merge thorpej-cfargs2.

branches: 1.7.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.6.2;
Switch to intr_establish_xname().

branches: 1.5.30;
Merge nick-nhusb

- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix

Use IPL_VM for dwc2_intr and mark as MP safe where possible.

branches: 1.3.2;
Use IPL_SCHED for dwctwo(4) - no need for the KERNEL_LOCK.

branches: 1.2.4; 1.2.6; 1.2.8; 1.2.10; 1.2.14;
Move the parameters for obs600 to obs600_autoconf.c. This parameters was set from u-boot.

Support Synopsys DesigneWave OTG on PowerPC 405EX.

Switch to intr_establish_xname().

branches: 1.15.42;
Remove unused variable

branches: 1.14.2; 1.14.12; 1.14.16;
Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

struct device * -> device_t
struct cfdata * -> cfdata_t
split device/softc (CFATTACH_DECL_NEW)
use device_accessors and device_private
constify

branches: 1.12.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.11.66; 1.11.86; 1.11.88;
Remove the devprop API and switch everthing over to the new proplib. Add
a new device_properties() accessor for device_t that returns the device's
property dictionary.

branches: 1.10.4; 1.10.6; 1.10.8; 1.10.10; 1.10.12;
bare asm -> __asm

merge ktrace-lwp.

branches: 1.8.16;
__KERNEL_RCSID()

branches: 1.7.2;
Add support for the IBM 403GCX cpu. Enabled with "options PPC_IBM403".

- different set of device control registers.
- non-standard access to the time base.
- 16 byte cache lines.

Approved by: Eduardo Horvath <eeh@netbsd.org>

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

remove trailing \n in panic(). approved perry.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

branches: 1.1.2; 1.1.4; 1.1.6;
Add "ecc at plb" device.
Add an "irq" locator to the plb device.
This gets rid of the original hack where ecc support was wedged into
the cpu driver.

s/aboce/above/ and s/Abobe/Above/ in comments.

branches: 1.5.22;
Support OPB running @ 33MHz for 405GP based boards.
No need to modify EMAC_MR1 register this case
(STACR_OPBC fields are reserved for 405GP).

branches: 1.4.2; 1.4.4;
Style and cosmetic changes. No binary changes intended.

Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.2.56; 1.2.76; 1.2.78;
do bus_space_map() to get bus space handle in emacs_attach()

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.28; 1.1.58; 1.1.60;
Split out device register definitions to their own files as the are
common across many of the 4xx parts. Leaves ibm405gp.h with device
address information specific to the 405GP CPU. Now allows opb.c to
support multiple 4xx CPU types.

Merge thorpej-cfargs2.

branches: 1.4.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.3.68;
struct device * -> device_t
struct cfdata * -> cfdata_t
split device/softc (CFATTACH_DECL_NEW)
use device_accessors and device_private
constify

branches: 1.2.2; 1.2.8; 1.2.10;
Add IBM405GPr "External Bus" driver.

branches: 1.1.2;
file exb.c was initially added on branch uebayasi-xip.

branches: 1.2.2; 1.2.8;
Add IBM405GPr "External Bus" driver.

branches: 1.1.2;
file exbvar.h was initially added on branch uebayasi-xip.

branches: 1.1.2;
file flash_exb.c was initially added on branch uebayasi-xip.

Encapsulate what's needed to attach an I2C bus into a iicbus_attach()
inline.

Merge thorpej-cfargs2.

branches: 1.11.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.10.10;
Cleanup i2c bus acquire / release, centralizing all of the logic into
iic_acquire_bus() / iic_release_bus(). "acquire" and "release" hooks
no longer need to be provided by back-end controller drivers (only if
they need special handling, e.g. powering on the i2c controller).
This results in the removal of a bunch of rendundant code from each
back-end controller driver.

Assert that we are not in hard interrupt context in iic_acquire_bus(),
iic_exec(), and iic_release_bus().

branches: 1.9.54;
Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

struct device * -> device_t
struct cfdata * -> cfdata_t
split device/softc (CFATTACH_DECL_NEW)
use device_accessors and device_private
constify

Initialize i2cbus_attach_args before call config_found(). It has other member.

branches: 1.6.26;
- if SDA is set to low during DIR(INPUT) in gpiic_set_bits(),
store the SDA status into softc and enable it once after
DIR() is changed to OUTPUT in gpiic_set_dir()
- remove "Read in output mode" warning in gpiic_read_bits()
since it's a vaild operation (to read SCL during SDA output is low)

Tested by kiyohara@ on OPENBLOCKS266.

branches: 1.5.12; 1.5.16; 1.5.18; 1.5.20; 1.5.22;
lockmgr -> mutex

branches: 1.4.18; 1.4.32; 1.4.34; 1.4.40; 1.4.44;
use the "i2cbus" interface attribute rather than putting a string name
into the i2cbus attach args

branches: 1.3.4; 1.3.8; 1.3.16;
merge ktrace-lwp.

branches: 1.2.4; 1.2.18;
Gah. Pick up the MI i2c headers from the right place.
Pointed out by Shigeyuki Fukushima on port-powerpc@.

MD i2c glue for the 405GP's onboard IIC controller.
Bit-bang only for now.

s/Reqest/Request/ and adding apostrophe for don't and didn't in comments.

merge ktrace-lwp.

branches: 1.1.4;
MD i2c glue for the 405GP's onboard IIC controller.
Bit-bang only for now.

Merge thorpej-cfargs2.

branches: 1.9.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.8.68;
struct device * -> device_t
struct cfdata * -> cfdata_t
split device/softc (CFATTACH_DECL_NEW)
use device_accessors and device_private
constify

branches: 1.7.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.6.48; 1.6.68; 1.6.70;
Fix a tyop in a comment.

branches: 1.5.10;
IBM4xx on-chip GPIO controller apllying MI GPIO framework.

branches: 1.4.4; 1.4.6; 1.4.8; 1.4.10;
merge ktrace-lwp.

Complete the renaming gpio -> ppcgpio for evbppc, to make room for
the MI gpio. Internal static functions in gpio_opb.c are not
renamed here, but the softc type is renamed together with the attach
declaration data.

s/locdesc_t/int/g

branches: 1.1.2; 1.1.10; 1.1.12;
Add driver for On-chip General Purpose I/O.

IBM4xx on-chip GPIO controller apllying MI GPIO framework.

branches: 1.3.4; 1.3.6; 1.3.8; 1.3.10;
merge ktrace-lwp.

branches: 1.2.8;
Add driver for On-chip General Purpose I/O.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.12; 1.1.20;
Split out device register definitions to their own files as the are
common across many of the 4xx parts. Leaves ibm405gp.h with device
address information specific to the 405GP CPU. Now allows opb.c to
support multiple 4xx CPU types.

IBM4xx on-chip GPIO controller applying MI GPIO framework.

branches: 1.2.4; 1.2.6; 1.2.8; 1.2.10;
merge ktrace-lwp.

branches: 1.1.2; 1.1.10; 1.1.12;
Add driver for On-chip General Purpose I/O.

Added MSI/MSI-X and interrupt_distribute(9) support for powerpc.

branches: 1.7.12; 1.7.30; 1.7.34;
First pass of the new PCI MSI/MSI ABI definitions. (return EOPNOTSUPP for
now).

Add support pci_intr_setattr.
Export non-inline version of pci api for modules (_MODULE is defined).
Fix definition of pc_conf_hook and pc_conf_interrupt.
Switch to using inlines instead of macros.
Switch ibm4xx to use <powerpc/pci_machdep.h>

Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

branches: 1.4.110;
merge ktrace-lwp.

Switch ibm4xx over to using the more flexible powerpc bus_space/bus_dma code.

__KERNEL_RCSID()

branches: 1.1.2; 1.1.8;
Changes/additions to support evbppc.

Add a shared function to query the common properties used for configuring
an Ethernet address.

s/alloted/allotted/ in comments.

fix typos, mainly s/unsupport/unsupported/ in log messages.

Eliminate use of IFF_OACTIVE.

Support OPB running @ 33MHz for 405GP based boards.
No need to modify EMAC_MR1 register this case
(STACR_OPBC fields are reserved for 405GP).

branches: 1.55.2;
Switch to intr_establish_xname().

Add rnd(9) support.

branches: 1.53.2;
Style and cosmetic changes. No binary changes intended.

Adopt <net/if_stats.h>.

branches: 1.51.4;
Use ETHER_LOCK()/ETHER_UNLOCK() for all ethernet drivers to protect ec_multi*.

-No functional change:
- KNF
- u_int*_t -> uint*_t.

Change MII PHY read/write API from:

int (*mii_readreg_t)(device_t, int, int);
void (*mii_writereg_t)(device_t, int, int, int);
to:

int (*mii_readreg_t)(device_t, int, int, uint16_t *);
int (*mii_writereg_t)(device_t, int, int, uint16_t);

Now we can test if a read/write operation failed or not by the return value.

In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.

Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:

arm/at91/at91emac.c
arm/ep93xx/epe.c
arm/omap/omapl1x_emac.c
mips/ralink/ralink_eth.c
arch/powerpc/booke/dev/pq3etsec.c(read)
dev/cadence/if_cemac.c <- hkenken
dev/ic/lan9118.c


Tested with the following device:

axe+ukphy
axe+rgephy
axen+rgephy (tested by Andrius V)
wm+atphy
wm+ukphy
wm+igphy
wm+ihphy
wm+makphy
sk+makphy
sk+brgphy
sk+gentbi
msk+makphy
sip+icsphy
sip+ukphy
re+rgephy
bge+brgphy
bnx+brgphy
gsip+gphyter
rtk+rlphy
fxp+inphy (tested by Andrius V)
tlp+acphy
ex+exphy
epic+qsphy
vge+ciphy (tested by Andrius V)
vr+ukphy (tested by Andrius V)
vte+ukphy (tested by Andrius V)

Not tested (MAC):
arm:at91emac
arm:cemac
arm:epe
arm:geminigmac
arm:enet
arm:cpsw
arm:emac(omac)
arm:emac(sunxi)
arm:npe
evbppc:temac
macppc:bm
macppc:gm
mips:aumac
mips:ae
mips:cnmac
mips:reth
mips:sbmac
playstation2:smap
powerpc:tsec
powerpc:emac(ibm4xx)
sgimips:mec
sparc:be
sf
ne(ax88190, dl10019)
awge
ep
gem
hme
smsh
mtd
sm
age
alc
ale
bce
cas
et
jme
lii
nfe
pcn
ste
stge
tl
xi
aue
mue
smsc
udav
url

Not tested (PHY):
amhphy
bmtphy
dmphy
etphy
glxtphy
ikphy
iophy
lxtphy
nsphyter
pnaphy
rdcphy
sqphy
tlphy
tqphy
urlphy

branches: 1.48.2;
Implement the BPF direction filter (BIOC[GS]DIRECTION). It provides backward
compatibility with BIOC[GS]SEESENT ioctl. The userland interface is the same
as FreeBSD.

This change also fixes a bug that the direction is misunderstand on some
environment by passing the direction to bpf_mtap*() instead of checking
m->m_pkthdr.rcvif.

branches: 1.47.14;
Move bpf_mtap and if_ipackets++ on Rx of each driver to percpuq if_input

The benefits of the change are:
- We can reduce codes
- We can provide the same behavior between drivers
- Where/When if_ipackets is counted up
- Note that some drivers still update packet statistics in their own
way (periodical update)
- Moved bpf_mtap run in softint
- This makes it easy to MP-ify bpf

Proposed on tech-kern and tech-net

Apply deferred if_start framework

if_schedule_deferred_start checks if the if_snd queue contains packets,
so drivers don't need to check it by themselves.

branches: 1.45.2;
Introduce m_set_rcvif and m_reset_rcvif

The API is used to set (or reset) a received interface of a mbuf.
They are counterpart of m_get_rcvif, which will come in another
commit, hide internal of rcvif operation, and reduce the diff of
the upcoming change.

No functional change.

Introduce softint-based if_input

This change intends to run the whole network stack in softint context
(or normal LWP), not hardware interrupt context. Note that the work is
still incomplete by this change; to that end, we also have to softint-ify
if_link_state_change (and bpf) which can still run in hardware interrupt.

This change softint-ifies at ifp->if_input that is called from
each device driver (and ieee80211_input) to ensure Layer 2 runs
in softint (e.g., ether_input and bridge_input). To this end,
we provide a framework (called percpuq) that utlizes softint(9)
and percpu ifqueues. With this patch, rxintr of most drivers just
queues received packets and schedules a softint, and the softint
dequeues packets and does rest packet processing.

To minimize changes to each driver, percpuq is allocated in struct
ifnet for now and that is initialized by default (in if_attach).
We probably have to move percpuq to softc of each driver, but it's
future work. At this point, only wm(4) has percpuq in its softc
as a reference implementation.

Additional information including performance numbers can be found
in the thread at tech-kern@ and tech-net@:
http://mail-index.netbsd.org/tech-kern/2016/01/14/msg019997.html

Acknowledgment: riastradh@ greatly helped this work.
Thank you very much!

branches: 1.43.2;
fix typo in comment

Pass MIIF_DOPAUSE mask to mii_attach() in if_emac.c. emac(4) change a
register from IFM_FLOW flag, so this change is required to control the
setting via ifconfig. PR#48950. OK'd by matt@.

branches: 1.41.2; 1.41.12;
Fix mii_statchg to take a 'struct ifnet *' instead of device_t. This fixes
problem with a common MDIO bus used for multiple interfaces.
Some drivers converted to CFATTACL_DECL_NEW.

Flush current empty descriptor in emac_rxeob_intr().

branches: 1.39.2;
Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

struct device * -> device_t
struct cfdata * -> cfdata_t
split device/softc (CFATTACH_DECL_NEW)
use device_accessors and device_private
constify

branches: 1.37.6;
Push the bpf_ops usage back into bpf.h. Push the common ifp->if_bpf
check into the inline functions as well the fourth argument for
bpf_attach.

Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.35.2; 1.35.4;
Unify the name of the device property to hold a MAC address - there was
no clear majority for either "mac-addr" vs. "mac-address", but a quick
gallup poll among developers selected the latter.

Redefine bpf linkage through an always present op vector, i.e.
#if NBPFILTER is no longer required in the client. This change
doesn't yet add support for loading bpf as a module, since drivers
can register before bpf is attached. However, callers of bpf can
now be modularized.

Dynamically loadable bpf could probably be done fairly easily with
coordination from the stub driver and the real driver by registering
attachments in the stub before the real driver is loaded and doing
a handoff. ... and I'm not going to ponder the depths of unload
here.

Tested with i386/MONOLITHIC, modified MONOLITHIC without bpf and rump.

Initialize the member sc_callout before call callout_reset().

branches: 1.32.6; 1.32.10; 1.32.12; 1.32.14; 1.32.16;
Delete a now-unused local variable.

Make many ethernet drivers share the common code for MII media
handling, ether_mediastatus() and ether_mediachange(). Check for
a non-ENXIO error return from mii_mediachg(). (ENXIO indicates
that a PHY is suspended.)

This patch shrinks the source code size by 979 lines. There was
a 5100-byte savings on the NetBSD/i386 kernel configuration, ALL.

I have made a few miscellaneous changes, too:

gem(4): use LIST_EMPTY(), LIST_FOREACH().
mtd(4): handle media ioctls, for a change!
axe(4): do not track link status in sc->axe_link any longer
nfe(4), aue(4), axe(4), udav(4), url(4): do not reset all PHYs
on a change of media

Except for the change to mtd(4), no functional changes are intended.

XXX This patch affects more architectures than I can feasibly
XXX compile and run. I have compiled macppc, sparc64, i386. I
XXX have run the patches on i386 boxen with bnx(4) and sip(4).
XXX Compiling and running on evbmips (MERAKI, ADM5120) is in
XXX progress.

branches: 1.30.2; 1.30.8;
Merge the ppcoea-renovation branch to HEAD.

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.

branches: 1.29.2;
Constify.

branches: 1.28.2; 1.28.10; 1.28.14; 1.28.18;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.27.4;
do bus_space_map() to get bus space handle in emacs_attach()

branches: 1.26.8; 1.26.10;
Remove the devprop API and switch everthing over to the new proplib. Add
a new device_properties() accessor for device_t that returns the device's
property dictionary.

branches: 1.25.2; 1.25.4; 1.25.6;
Use device_is_active() rather than testing dv_flags for DVF_ACTIVE
directly.

- Don't expose dev_propdb directly -- provide devprop_*() wrappers instead.
- Rework the ARMADILLO / epe device properties interaction so that it actually
associates the MAC address property with the epe device instance.

branches: 1.23.2; 1.23.4; 1.23.6;
merge ktrace-lwp.

branches: 1.22.6;
Eliminate use of M_HASFCS.

branches: 1.21.2;
Set up last segment descriptor to send an interrupt after that
descriptor is transmitted, and bypass existing Tx descriptor reaping
method (for now...).

Fixes problems with bad NFS write performance.

In emac_txeob_intr():
- return 1 if we processed any completed tx packets.
- try to get more packets going by calling emac_start().

branches: 1.19.4;
When adding/deleting multicast addresses, only whack the address
filter if the interface is marked RUNNING.

Fixes kern/27678.

branches: 1.18.4;
Add promiscuous and multicast support.

From KIYOHARA Takashi in PR port-powerpc/23892.

Keep bogus gcc -Wuninitialised warnings happy.

Correct a test for setting IFF_OACTIVE on the interface.

__KERNEL_RCSID()

Consult the "mac-addr" property associated with the emac device in
the dev_propdb rather than referencing board_data.

branches: 1.13.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

Use the base space tag from the attach args, don't recreate it all the
time.
Clean up some include files.

Use "ibm4xx" instead of "galaxy"; galaxy was an early code name for the
405GP.

Fix include file location botch in previous.

Split out device register definitions to their own files as the are
common across many of the 4xx parts. Leaves ibm405gp.h with device
address information specific to the 405GP CPU. Now allows opb.c to
support multiple 4xx CPU types.

Reorganise the IBM 4xx bus layout, using terminology from the IBM
documentation:
- Remove "mainbus" altogether.
- The new root is "plb" - the Processor Local Bus.
- Attached to this is the "opb" - the On-chip Peripheral Bus, to which
all the on-chip devices are attached (except the cpu and pci host
bridge).
- Port-specific code can pass an array of 'struct plb_dev' to
config_rootfound() to attach extra devices to the plb. The walnut
port attaches a "pbus" (Peripheral Bus) in here for the RTC and
pc keyboard controller to attach to.
There is still much 405GP specific code; the next round of changes will
generalise this to enable easier support for other 4xx CPUs.

Fix for when EMAC_EVENT_COUNTERS isn't defined. Problem reported by
Allen Briggs.

Add a driver the for IBM 405gp (and possibly other IBM 4xx cpus) ethernet
MAC (emac). Much thanks to Jason Thorpe for debugging help writing this
driver. Tested on the walnut, and an earlier version of this driver works
on the OpenBlockSS.

branches: 1.2.4;
Use new non-PCI mainbus.

branches: 1.1.2; 1.1.8;
Move on-chip 405GP devices to powerpc/ibm4xx/dev.

branches: 1.1.8;
Move on-chip 405GP devices to powerpc/ibm4xx/dev.

branches: 1.1.2; 1.1.4; 1.1.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

MD i2c glue for the 405GP's onboard IIC controller.
Bit-bang only for now.

Add on-chip IIC driver.
Add some definitions for IIC driver.

MD i2c glue for the 405GP's onboard IIC controller.
Bit-bang only for now.

Add on-chip IIC driver.
Add some definitions for IIC driver.

branches: 1.2.2;
Add bit definitions for some registers.

branches: 1.1.2; 1.1.4; 1.1.6;
Split out device register definitions to their own files as the are
common across many of the 4xx parts. Leaves ibm405gp.h with device
address information specific to the 405GP CPU. Now allows opb.c to
support multiple 4xx CPU types.

MD i2c glue for the 405GP's onboard IIC controller.
Bit-bang only for now.

Add on-chip IIC driver.
Add some definitions for IIC driver.

Fix typo. unknwon -> unknown

Switch to intr_establish_xname().

branches: 1.3.66;
Use __builtin_clz instead of our own cntlzw

Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.12;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.1.2; 1.1.4; 1.1.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

Merge thorpej-cfargs2.

branches: 1.28.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.27.4;
Style and cosmetic changes. No binary changes intended.

Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

branches: 1.25.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.24.2;
Adapt to spr.h breakup.

branches: 1.23.68; 1.23.88; 1.23.92;
IBM4xx on-chip GPIO controller apllying MI GPIO framework.

branches: 1.22.2; 1.22.4;
Add an "instance" member to opb_attach_args and use it when fetching
the mac-address property from board_info. port-powerpc/32862

branches: 1.21.2; 1.21.4; 1.21.6;
merge ktrace-lwp.

s/locdesc_t/int/g

branches: 1.19.2;
We need to name parameters in function declaration...

convert remaining autoconf bus "submatch" functions to use the new
signature (passing locators), and remove some which obviously don't
serve any purpose
(untested, sorry)

Uppercase CPU, plural is CPUs.

MD i2c glue for the 405GP's onboard IIC controller.
Bit-bang only for now.

Add devices info for IBM405GPR.

Switch ibm4xx over to using the more flexible powerpc bus_space/bus_dma code.

__KERNEL_RCSID()

branches: 1.12.2;
Use aprint_normal() for cfprint routines.

fix typo - driver name is 'opb', not 'obp'

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Introduce a new routine, config_match(), which invokes the
cfattach->ca_match function in behalf of the caller. Use it
rather than invoking cfattach->ca_match directly.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

branches: 1.5.2; 1.5.4;
Use the base space tag from the attach args, don't recreate it all the
time.
Clean up some include files.

Use "ibm4xx" instead of "galaxy"; galaxy was an early code name for the
405GP.

Split out device register definitions to their own files as the are
common across many of the 4xx parts. Leaves ibm405gp.h with device
address information specific to the 405GP CPU. Now allows opb.c to
support multiple 4xx CPU types.

branches: 1.2.2;
Add a pvr field to 'struct opb_dev', to allow the opb_devs array to
contain info about on-chip devices for more than one CPU type.

Reorganise the IBM 4xx bus layout, using terminology from the IBM
documentation:
- Remove "mainbus" altogether.
- The new root is "plb" - the Processor Local Bus.
- Attached to this is the "opb" - the On-chip Peripheral Bus, to which
all the on-chip devices are attached (except the cpu and pci host
bridge).
- Port-specific code can pass an array of 'struct plb_dev' to
config_rootfound() to attach extra devices to the plb. The walnut
port attaches a "pbus" (Peripheral Bus) in here for the RTC and
pc keyboard controller to attach to.
There is still much 405GP specific code; the next round of changes will
generalise this to enable easier support for other 4xx CPUs.

Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.118; 1.1.138; 1.1.140;
Split out device register definitions to their own files as the are
common across many of the 4xx parts. Leaves ibm405gp.h with device
address information specific to the 405GP CPU. Now allows opb.c to
support multiple 4xx CPU types.

Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

branches: 1.5.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.4.72; 1.4.92; 1.4.94;
Add an "instance" member to opb_attach_args and use it when fetching
the mac-address property from board_info. port-powerpc/32862

branches: 1.3.2; 1.3.4; 1.3.6;
merge ktrace-lwp.

branches: 1.2.16;
Switch ibm4xx over to using the more flexible powerpc bus_space/bus_dma code.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.12;
Reorganise the IBM 4xx bus layout, using terminology from the IBM
documentation:
- Remove "mainbus" altogether.
- The new root is "plb" - the Processor Local Bus.
- Attached to this is the "opb" - the On-chip Peripheral Bus, to which
all the on-chip devices are attached (except the cpu and pci host
bridge).
- Port-specific code can pass an array of 'struct plb_dev' to
config_rootfound() to attach extra devices to the plb. The walnut
port attaches a "pbus" (Peripheral Bus) in here for the RTC and
pc keyboard controller to attach to.
There is still much 405GP specific code; the next round of changes will
generalise this to enable easier support for other 4xx CPUs.

Fix typo in comment.

branches: 1.1.2; 1.1.4; 1.1.6;
Split out device register definitions to their own files as the are
common across many of the 4xx parts. Leaves ibm405gp.h with device
address information specific to the 405GP CPU. Now allows opb.c to
support multiple 4xx CPU types.

Remove unnecessary <sys/malloc.h>.

Merge thorpej-cfargs2.

branches: 1.23.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.22.4;
Style and cosmetic changes. No binary changes intended.

Support Synopsys DesigneWave OTG on PowerPC 405EX.

branches: 1.20.2; 1.20.12; 1.20.16;
Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

More device_t, cfdata, CFATTACH_DECL_NEW cleanup.

branches: 1.18.6;
Fix PR#43911.

Whitespace.

Add IBM405GPr "External Bus" driver.

Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.14.78; 1.14.98; 1.14.100;
merge ktrace-lwp.

convert remaining autoconf bus "submatch" functions to use the new
signature (passing locators), and remove some which obviously don't
serve any purpose
(untested, sorry)

Uppercase CPU, plural is CPUs.

Fix the default bus dma tag.

Switch ibm4xx over to using the more flexible powerpc bus_space/bus_dma code.

__KERNEL_RCSID()

branches: 1.8.2;
Use aprint_normal() for cfprint routines.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Introduce a new routine, config_match(), which invokes the
cfattach->ca_match function in behalf of the caller. Use it
rather than invoking cfattach->ca_match directly.

branches: 1.3.2; 1.3.4;
Add "ecc at plb" device.
Add an "irq" locator to the plb device.
This gets rid of the original hack where ecc support was wedged into
the cpu driver.

Use "ibm4xx" instead of "galaxy"; galaxy was an early code name for the
405GP.

branches: 1.1.2;
Reorganise the IBM 4xx bus layout, using terminology from the IBM
documentation:
- Remove "mainbus" altogether.
- The new root is "plb" - the Processor Local Bus.
- Attached to this is the "opb" - the On-chip Peripheral Bus, to which
all the on-chip devices are attached (except the cpu and pci host
bridge).
- Port-specific code can pass an array of 'struct plb_dev' to
config_rootfound() to attach extra devices to the plb. The walnut
port attaches a "pbus" (Peripheral Bus) in here for the RTC and
pc keyboard controller to attach to.
There is still much 405GP specific code; the next round of changes will
generalise this to enable easier support for other 4xx CPUs.

Support Synopsys DesigneWave OTG on PowerPC 405EX.

branches: 1.6.2; 1.6.12; 1.6.16;
Use <sys/foo.h> instead of <machine/foo.h> if such a file exists.
Don't assume <sys/cpu.h> includes <powerpc/subarch/cpu*.h>. Include it
explicitly.

branches: 1.5.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.4.78; 1.4.98; 1.4.100;
merge ktrace-lwp.

Switch ibm4xx over to using the more flexible powerpc bus_space/bus_dma code.

branches: 1.2.2; 1.2.4; 1.2.10;
Add "ecc at plb" device.
Add an "irq" locator to the plb device.
This gets rid of the original hack where ecc support was wedged into
the cpu driver.

branches: 1.1.2;
Reorganise the IBM 4xx bus layout, using terminology from the IBM
documentation:
- Remove "mainbus" altogether.
- The new root is "plb" - the Processor Local Bus.
- Attached to this is the "opb" - the On-chip Peripheral Bus, to which
all the on-chip devices are attached (except the cpu and pci host
bridge).
- Port-specific code can pass an array of 'struct plb_dev' to
config_rootfound() to attach extra devices to the plb. The walnut
port attaches a "pbus" (Peripheral Bus) in here for the RTC and
pc keyboard controller to attach to.
There is still much 405GP specific code; the next round of changes will
generalise this to enable easier support for other 4xx CPUs.

Style and cosmetic changes. No binary changes intended.

branches: 1.1.2; 1.1.4; 1.1.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.1.2; 1.1.4; 1.1.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

branches: 1.1.2; 1.1.4; 1.1.6;
Support PowerPC 405EX/EXr.
1. Add some new source and header files.
(MAL(split) and RGMII(new) relations for EMAC)
2. Create dcr4xx.h. Its moved from dcr405gp.h. Also remove dcr405xx.h.
3. intr.c supports MULTIUIC with virtual-irq. likes to oea.
support 32-virq/128-hwirq.
4. multiple emac support.
5. WALNUT and VIRTEX_* includes arch/powerpc/conf/files.ibm4xx.
6. WALNUT pci uses arch/powerpc/ibm4xx/pci/.

Conversion of evbppc to generic TODR. ok freza@

branches: 1.4.20; 1.4.22;
merge ktrace-lwp.

branches: 1.3.2;
Fix the various todr_gettime() and todr_settime() fallouts from
-Wcast-qual differently, by instead changing the signatore of those
"functions" to take a "volatile struct timeval*" instead of a
"struct timeval*". Many places, these functions are called with
&time, and time is declared as volatile in <sys/kernel.h>. This
way we can get rid of all the ugly casts which now also triggered
warnings, and caused more code to be added to work around the
problem.

Reviewed by thorpej.

Appease -Wcast-qual

branches: 1.1.4;
Add Real time clock support code.

Remove unused todclock files -- these are left overs from pre-generic-TODR.

branches: 1.3.20;
merge ktrace-lwp.

branches: 1.2.2; 1.2.14;
Call inittodr() from main(). Let file system code set the recorded `last
update' time (if any) through the new function setrootfstime().

Move todclock driver from evbppc/walnut/dev.

Remove unused todclock files -- these are left overs from pre-generic-TODR.

branches: 1.2.20;
merge ktrace-lwp.

branches: 1.1.4; 1.1.18;
Move todclock driver from evbppc/walnut/dev.

Use aprint_normal include sys/cpu.h

struct device * -> device_t
struct cfdata * -> cfdata_t
split device/softc (CFATTACH_DECL_NEW)
use device_accessors and device_private
constify

branches: 1.10.8;
Adapt to spr.h breakup.

branches: 1.9.66; 1.9.86; 1.9.90;
Remove the devprop API and switch everthing over to the new proplib. Add
a new device_properties() accessor for device_t that returns the device's
property dictionary.

branches: 1.8.4; 1.8.6; 1.8.8; 1.8.10; 1.8.12;
merge ktrace-lwp.

branches: 1.7.16;
__KERNEL_RCSID()

branches: 1.6.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

branches: 1.2.2; 1.2.4;
Reorganise the IBM 4xx bus layout, using terminology from the IBM
documentation:
- Remove "mainbus" altogether.
- The new root is "plb" - the Processor Local Bus.
- Attached to this is the "opb" - the On-chip Peripheral Bus, to which
all the on-chip devices are attached (except the cpu and pci host
bridge).
- Port-specific code can pass an array of 'struct plb_dev' to
config_rootfound() to attach extra devices to the plb. The walnut
port attaches a "pbus" (Peripheral Bus) in here for the RTC and
pc keyboard controller to attach to.
There is still much 405GP specific code; the next round of changes will
generalise this to enable easier support for other 4xx CPUs.

branches: 1.1.2;
Add driver for 405gp (and other 4xx?) watchdog timer.

branches: 1.1.2; 1.1.4; 1.1.6;
Fix build failed.
Add forgot zmiireg.h since support 405EX.