linux.git/arch/powerpc/kernel/prom_parse.c, branch v2.6.28

powerpc: Fix IRQ assignment for some PCIe devices

2008-11-30T22:40:18+00:00

Currently, some PCIe devices on POWER6 machines do not get interrupts
assigned correctly.  The problem is that OF doesn't create an
"interrupt" property for them.  The fix is for of_irq_map_pci to fall
back to using the value in the PCI interrupt-pin register in config
space, as we do when there is no OF device-tree node for the device.

I have verified that this works fine with a pair of Squib-E SAS
adapter on a P6-570.

Acked-by: Benjamin Herrenschmidt 

Signed-off-by: Paul Mackerras

powerpc: Fix OF parsing of 64 bits PCI addresses

2008-07-22T00:39:34+00:00

The OF parsing code for PCI addresses isn't always treating properly
the address space indication 0b11 (ie. 0x3) as meaning 64 bits
memory space.

This means that it fails to parse addresses for PCI BARs that have
this encoding set by the firmware, which happens on some SLOF
versions and breaks offb palette handling on Powerstation.

Signed-off-by: Benjamin Herrenschmidt 
Acked-by: Segher Boessenkool

[POWERPC] Add of_translate_dma_address

2007-12-11T04:43:35+00:00

This adds a variant of of_translate_address that uses the dma-ranges
property instead of "ranges", it's to be used by PCI code in parsing
the dma-ranges property.

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] pci_controller->arch_data really is a struct device_node *

2007-12-11T02:42:37+00:00

Signed-off-by: Stephen Rothwell 
Signed-off-by: Paul Mackerras

Revert "[POWERPC] Don't complain if size-cells == 0 in prom_parse()"

2007-07-26T03:44:36+00:00

This reverts commit fd6e9d3945ee122eb513ada8b17296d243c1ce5e.

Having #size-cells == 0 in a node indicates that things under the
node aren't directly accessible, and therefore we shouldn't try to
translate addresses for devices under the node into CPU physical
addresses.

Some drivers, such as the nvram driver for powermacs, rely on
of_address_to_resource failing if they are called for a node
representing a device whose resources aren't directly accessible
by the CPU.  These drivers were broken by commit fd6e9d39,
resulting in the "Lombard" powerbook hanging early in the boot
process.

Signed-off-by: Paul Mackerras

[POWERPC] Don't complain if size-cells == 0 in prom_parse()

2007-05-12T01:32:48+00:00

An mdio bus scan was added with ucc_geth phylib
migration patches, now machines complain on boot, saying:

prom_parse: Bad cell count for /qe@e0100000/mdio@2120/ethernet-phy@00
prom_parse: Bad cell count for /qe@e0100000/mdio@2120/ethernet-phy@01

since size-cells can indeed be 0, this patch fixes the check.

Signed-off-by: Kim Phillips 
Signed-off-by: Paul Mackerras

[POWERPC] Uninline of_iomap function

2007-05-02T10:04:29+00:00

There is no big reason to have that function inlined.

Signed-off-by: Christian Krafft 
Acked-by: Arnd Bergmann 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Move of_irq_to_resource from prom.h to prom_parse.c

2007-05-02T06:40:55+00:00

In the powerpc architecture, of_irq_to_resource, currently sitting in
prom.h, needs irq_of_parse_and_map and NO_IRQ from asm-powerpc/irq.h.
The solution suggested by Benjamin Herrenschmidt is to move it to
arch/powerpc/kernel/prom_parse.c.

Signed-off-by: Mathieu Desnoyers 
Signed-off-by: Paul Mackerras

[POWERPC] Rename get_property to of_get_property: arch/powerpc

2007-04-12T17:55:19+00:00

Signed-off-by: Stephen Rothwell 
Acked-by: Benjamin Herrenschmidt 
Signed-off-by: Paul Mackerras

[POWERPC] Rename prom_n_size_cells to of_n_size_cells

2007-04-12T17:55:18+00:00

This is more consistent and gets us closer to the Sparc code.

Signed-off-by: Stephen Rothwell 
Signed-off-by: Paul Mackerras