kernel.git/arch/powerpc/kernel/prom_parse.c, branch linux-2.6.21.y

[POWERPC] Fix warning in prom_parse.c of_irq_map_oldworld()

2007-03-07T17:09:33Z

This function spews a warning due to possible use of an uninitialized variable. This can happen on broken device-trees or when called with a NULL argument. Makes ure we properly fail instead. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] add of_get_mac_address and update fsl_soc.c to use it

2007-02-16T23:21:25Z

Add function of_get_mac_address(), which obtains the best MAC address to use from the device tree by checking various properties in order. The order is: 'mac-address', then 'local-mac-address', then 'address'. It skips properties that contain invalid MAC addresses, which were probably not initialized by U-Boot. Update gfar_of_init() and fs_enet_of_init() in fsl_soc.c to call of_get_mac_address(). Signed-off-by: Timur Tabi Signed-off-by: Paul Mackerras

[POWERPC] Workaround oldworld OF bug with IRQs & P2P bridges

2006-12-20T05:37:47Z

On some oldworld PowerMacs, OF doesn't assign interrupts properly beyond P2P bridges. Fortunately, the fix is easy as all those machines just wire all IRQ lines together to one IRQ which is assigned to the bridge itself. We already have a special function for parsing Apple OldWorld interrupts which are special, so let's add to it the ability to walk up the PCI tree to find interrupts. This fixes irqs on the lower slots of s900 clones among others. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] Fix OF pci flags parsing

2006-12-04T09:41:49Z

For PCI devices with only io ports, of_bus_pci_get_flags() will fall through and still mark the resource as IORESOURCE_MEM. Signed-off-by: Olof Johansson Acked-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

[POWERPC] Fix up the OF functions to only do PCI stuff if PCI is actually configured

2006-10-24T05:01:27Z

The original problem that inspired this patch was solved quite some time ago (Turning off PCI didn't work), but this patch neatens things up a little (I think), by putting all the PCI stuff inside a single CONFIG_PCI block. It also removes the OF PCI bus matching entries if CONFIG_PCI is off. Signed-off-by: Paul Mackerras

Revert "[POWERPC] Don't get PCI IRQ from OF for devices with no IRQ"

2006-10-08T22:38:22Z

This reverts commit 41550c5128150175197257b6ceab2cd50dea7b51. Quoth Ben Herrenschmidt: "Please revert this one for now. It seems to break G5s :( Looks like PCI cells inside Apple IO ASICs don't have a PCI_INTERRUPT_LINE set. I need to figure out a better fix." Signed-off-by: Linus Torvalds

[POWERPC] Don't get PCI IRQ from OF for devices with no IRQ

2006-10-06T11:10:41Z

This patch adds checking of the PCI_INTERRUPT_PIN register before using standard OF parsing to retreive PCI interrupts. The reason is that some PCI devices may have no PCI interrupt, though they may have interrupts attached via other means. In this case, we shall not use irq->pdev, but device-specific code can later retreive those interrupts instead. Without that patch, Maple and derivatives don't get the right interrupt for the second IDE channel as the linux IDE code fallsback to the PCI irq instead of trying to use the legacy ones for the on-board controller (which has no PCI_INTERRUPT_PIN). Having no PCI IRQ assign to it (as it doesn't request any) fixes it. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

Merge branch 'merge'

2006-08-31T05:45:48Z

[POWERPC] Make OF irq map code detect more error cases

2006-08-30T04:31:03Z

Device-tree bugs on js20 with some versions of SLOF were causing the interrupt for IDE to not be parsed correctly and fail to boot. This patch adds a bit more sanity checking to the parser to detect some of those errors and fail instead of returning bogus information. The powerpc PCI code can then trigger a fallback that works on those machines. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Paul Mackerras

Merge branch 'merge'

2006-08-25T04:56:07Z