These have no dependencies on the EBUS probing layer, the clients
setup the registers and all of those details. The EBUS DMA layer
just programs and manages the DMA controller found in EBUS.
Signed-off-by: David S. Miller <davem@davemloft.net>
In order to convert EBUS drivers doing DMA into pure OF drivers,
we need the of_device->dev.archdata setup properly.
EBUS instances that can provide DMA for device nodes sit on PCI,
so detect and propagate the information there.
Signed-off-by: David S. Miller <davem@davemloft.net>
As we convert the various by-hand sparc64 RTC drivers to use the
generic RTC framework and drivers, we need to keep the NTP
set_rtc_mmss() support via update_persistent_clock() working.
In the end, after all the RTC device cases are converted, this
local set_rtc_mmss() function will be deleted.
Signed-off-by: David S. Miller <davem@davemloft.net>
In order to make this week I also had to add an include
of linux/dma-mapping.h to asm/pci_32.h because drivers/pci/pci.c
really depends upon getting this header somehow.
Signed-off-by: David S. Miller <davem@davemloft.net>
The individual SBUS IOMMU arch code now sets the IOMMU information
directly into the OF device objects.
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a helper function that, given a bus of_device node, propagates
all iommu, stc, and host_controller values down to the child nodes.
Signed-off-by: David S. Miller <davem@davemloft.net>
32-bit sparc just needed it to register the ioport procfs bits, do this
via an arch_initcall() instead.
Signed-off-by: David S. Miller <davem@davemloft.net>
No drivers or code uses this stuff any more, every driver has been
converted over to OF device probing.
Signed-off-by: David S. Miller <davem@davemloft.net>
This lets us kill this "map it in every IOMMU" crazy code, and also
some of the final references to sbus_root.
Signed-off-by: David S. Miller <davem@davemloft.net>
This is in preparation for the subsequent asm/sbus.h removal.
Also, make these routines take a "struct device" or no
arguments, as appropriate.
Signed-off-by: David S. Miller <davem@davemloft.net>
And all the SBUS dma interfaces are deleted.
A private implementation remains inside of the 32-bit sparc port which
exists only for the sake of the implementation of dma_*().
Signed-off-by: David S. Miller <davem@davemloft.net>
These dispatch to either PCI or SBUS routines based upon
the device bus type.
This will allow us to let SBUS drivers call these routines.
Signed-off-by: David S. Miller <davem@davemloft.net>
And stick the iommu archdata pointer into the generic OF device tree
of_device struct as well.
We still have to pass the sbus_bus object down into the routines so
that the SBUS bus objects get the iommu cookies set properly. After
drivers get converted to being pure OF drivers, that can go away.
Signed-off-by: David S. Miller <davem@davemloft.net>
This thing was completely pointless.
Just find the OF device in the parent of drivers that want to program
this device, and map the DMA regs inside such drivers too.
This also moves the dummy claim_dma_lock() and release_dma_lock()
implementation to floppy_32.h, which makes it handle this issue
just like floppy_64.h does.
Signed-off-by: David S. Miller <davem@davemloft.net>
This has been marked BROKEN for a long time and it's more likely
to get rewritten from scratch than to be fixed up and made usable.
Signed-off-by: David S. Miller <davem@davemloft.net>
Stephen Rothwell noticed that I committed an earlier version
of the patch that didn't have two things fixed:
1) irq_of_parse_and_map() should return "unsigned int" not "int"
and it should return zero for "no irq"
2) irq_dispose_mapping() should be an inline function, not a macro,
for type checking
With feedback and suggestions from Anton Vorontsov.
Signed-off-by: David S. Miller <davem@davemloft.net>
This also allows arch/sparc64/kernel/pci.c to be properly CONFIG_PCI
conditional compiled in the Makefile.
Signed-off-by: David S. Miller <davem@davemloft.net>
The way to do this varies by platform type and the exact memory
controller the cpu uses.
For Spitfire cpus we currently just use prom_getunumber() and hope
that works.
For Cheetah cpus we have a memory controller driver that can
compute this information.
Signed-off-by: David S. Miller <davem@davemloft.net>
