CVS log for src/sys/arch/arm/broadcom/bcm2835_spi.c

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Default branch: MAIN

bcm2835_spi: guard against too large clock divider and clamp if necessary

Remove unnecessary gotos and label.  Same code before and after.

Port over the changes from thorpej-i2c-spi-conf to thorpej-i2c-spi-conf2,
which is based on a newer HEAD revision.

Merge thorpej-cfargs2.

Adapt to CFARGS().

Pass the controller devhandle along to the "spi" instance.

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?).

Sync with HEAD.

Convert config_found_ia() call sites where the device only carries
a single interface attribute to bare config_found() calls.

fdtbus_intr_establish -> fdtbus_intr_establish_xname

Rename of_match_compat_data() to of_compatible_match().  Similarly,
rename of_search_compatible() to of_compatible_lookup().

Standardize on of_compatible_match() for driver matching, and adapt
all call sites.

Pull up following revision(s) (requested by 1043):

	sys/dev/spi/spivar.h: revision 1.10
	sys/arch/arm/broadcom/bcm2835_spi.c: revision 1.7
	sys/dev/spi/spi.c: revision 1.15

Use mutex for lwp/interrupt coordination. using splX() simply does not work
on multiprocessor systems.

fixes PR kern/55506

Use mutex for lwp/interrupt coordination. using splX() simply does not work
on multiprocessor systems.

fixes PR kern/55506

Mostly merge changes from HEAD upto 20200411

ensure spibus_attach_args is zero'ed

FDTise RapberryPI support. Thanks for jmcneill for a lot of help with this.

The kernel image that the RPI firmware boots is now netbsd.img in the
kernel build directory.

XXX fdtbus_get_reg needs reworking

update from HEAD

Sync with HEAD

When expanding an inline function make sure you get the argument order
correct!

Now there's no functional change to expanding bcm2835_intr_establish

Expand the bcm2835_intr_establish inline.

No functional change.

IPL_BIO -> IPL_VM

No functional change. No code change... It's the same thing!

resync with head

Pull up following revision(s) (requested by skrll in ticket #813):

etc/MAKEDEV.tmpl					1.160
etc/etc.evbarm/MAKEDEV.conf				1.9
external/broadcom/rpi-firmware/dist/LICENCE.broadcom	1.1
external/broadcom/rpi-firmware/dist/bootcode.bin	1.1
external/broadcom/rpi-firmware/dist/bootcode.bin	1.2
external/broadcom/rpi-firmware/dist/fixup.dat		1.1
external/broadcom/rpi-firmware/dist/fixup.dat		1.2
external/broadcom/rpi-firmware/dist/fixup_cd.dat	1.1
external/broadcom/rpi-firmware/dist/fixup_cd.dat	1.2
external/broadcom/rpi-firmware/dist/start.elf		1.1
external/broadcom/rpi-firmware/dist/start.elf		1.2
external/broadcom/rpi-firmware/dist/start_cd.elf	1.1
external/broadcom/rpi-firmware/dist/start_cd.elf	1.2
sys/arch/arm/broadcom/bcm2835_bsc.c			1.1 via patch
sys/arch/arm/broadcom/bcm2835_bscreg.h			1.1 via patch
sys/arch/arm/broadcom/bcm2835_dotg.c			1.1 via patch
sys/arch/arm/broadcom/bcm2835_emmc.c			1.7 via patch
sys/arch/arm/broadcom/bcm2835_genfb.c			1.4 via patch
sys/arch/arm/broadcom/bcm2835_gpio_subr.c		1.2 via patch
sys/arch/arm/broadcom/bcm2835_gpio_subr.h		1.1 via patch
sys/arch/arm/broadcom/bcm2835_gpioreg.h			1.1 via patch
sys/arch/arm/broadcom/bcm2835_intr.c			1.3 via patch
sys/arch/arm/broadcom/bcm2835_mbox.c			1.5 via patch
sys/arch/arm/broadcom/bcm2835_mbox.h			1.4 via patch
sys/arch/arm/broadcom/bcm2835_obio.c			1.17 via patch
sys/arch/arm/broadcom/bcm2835_pm.c			1.2 via patch
sys/arch/arm/broadcom/bcm2835_rng.c			1.3 via patch
sys/arch/arm/broadcom/bcm2835_space.c			1.5 via patch
sys/arch/arm/broadcom/bcm2835_spi.c			1.1 via patch
sys/arch/arm/broadcom/bcm2835_spireg.h			1.1 via patch
sys/arch/arm/broadcom/bcm2835_tmr.c			1.3 via patch
sys/arch/arm/broadcom/bcm2835reg.h			1.10 via patch
sys/arch/arm/broadcom/files.bcm2835			1.14 via patch
sys/arch/evbarm/conf/RPI				1.23 via patch
sys/arch/evbarm/conf/files.rpi				1.3 via patch
sys/arch/evbarm/conf/mk.rpi				1.2 via patch
sys/arch/evbarm/conf/std.rpi				1.4 via patch
sys/arch/evbarm/rpi/rpi_machdep.c			1.34 via patch
sys/arch/evbarm/rpi/rpi_start.S				1.7 via patch
sys/arch/evbarm/rpi/rpi_vcmbox.c			1.2 via patch
sys/arch/evbarm/rpi/vcio.h				1.1 via patch
sys/arch/evbarm/rpi/vcprop.h				1.7 via patch
sys/conf/files						patch
sys/dev/sdmmc/sdhc.c					1.43
sys/dev/sdmmc/sdhcvar.h					1.13
sys/dev/usb/dwc_otg.c					1.45 via patch
sys/dev/usb/dwc_otgreg.h				1.5 via patch
sys/dev/usb/dwc_otgvar.h				1.11 via patch
sys/dev/usb/files.usb					1.126 via patch
sys/dev/usb/if_smsc.c					1.7 via patch
sys/dev/usb/if_smscreg.h				1.1 via patch
sys/dev/usb/if_smscvar.h				1.1 via patch
sys/dev/usb/usbdevices.config				patch
sys/dev/usb/usbdevs					1.633 via patch
sys/dev/usb/usbdevs.h					regen
sys/dev/usb/usbdevs_data.h				regen
sys/dev/wscons/wsconsio.h				1.105,1.107 via patch
sys/dev/wscons/wsdisplayvar.h				1.50
sys/dev/wscons/wsdisplay_util.c				1.2
sys/dev/videomode/edid.c				1.12 via patch

	Greatly improved Raspberry Pi support.  USB and onboard
	Ethernet should work.
	[skrll, ticket #813]

sync with head

file bcm2835_spi.c was added on branch tls-maxphys on 2013-02-25 00:28:25 +0000

file bcm2835_spi.c was added on branch netbsd-6 on 2013-02-13 01:36:14 +0000

file bcm2835_spi.c was added on branch yamt-pagecache on 2013-01-23 00:05:41 +0000

Add driver for BCM2835 SPI0 controller.