diff options
| author | Darren Stevens <darren@stevens-zone.net> | 2018-08-19 21:26:28 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-12-20 22:21:20 +1100 |
| commit | 51f4cc2047a4b7e9bf1b49acf06c110991fd4167 (patch) | |
| tree | 083d1dbe293410c70576657c73709b93a1dfdf6f /arch/powerpc/platforms/pasemi/pci.c | |
| parent | 656fdf3ad8e0ae4c6c3d75af373df6cc9797bac1 (diff) | |
| download | linux-51f4cc2047a4b7e9bf1b49acf06c110991fd4167.tar.bz2 | |
powerpc/pasemi: Add Nemo board IRQ initroutine
Add a IRQ init routine for the Nemo board which inits and attatches
the i8259 found in the SB600, and a cascade routine to dispatch the
interrupts.
Signed-off-by: Darren Stevens <darren@stevens-zone.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/platforms/pasemi/pci.c')
| -rw-r--r-- | arch/powerpc/platforms/pasemi/pci.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pasemi/pci.c b/arch/powerpc/platforms/pasemi/pci.c index 116c0fee6dd0..fdc839d93837 100644 --- a/arch/powerpc/platforms/pasemi/pci.c +++ b/arch/powerpc/platforms/pasemi/pci.c @@ -27,6 +27,7 @@ #include <linux/pci.h> #include <asm/pci-bridge.h> +#include <asm/isa-bridge.h> #include <asm/machdep.h> #include <asm/ppc-pci.h> @@ -181,6 +182,8 @@ static int pa_pxp_read_config(struct pci_bus *bus, unsigned int devfn, addr = pa_pxp_cfg_addr(hose, bus->number, devfn, offset); + sb600_set_flag(bus->number); + /* * Note: the caller has already checked that offset is * suitably aligned and that len is 1, 2 or 4. @@ -215,6 +218,8 @@ static int pa_pxp_write_config(struct pci_bus *bus, unsigned int devfn, addr = pa_pxp_cfg_addr(hose, bus->number, devfn, offset); + sb600_set_flag(bus->number); + /* * Note: the caller has already checked that offset is * suitably aligned and that len is 1, 2 or 4. @@ -265,6 +270,12 @@ static int __init pas_add_bridge(struct device_node *dev) /* Interpret the "ranges" property */ pci_process_bridge_OF_ranges(hose, dev, 1); + /* + * Scan for an isa bridge. This is needed to find the SB600 on the nemo + * and does nothing on machines without one. + */ + isa_bridge_find_early(hose); + return 0; } |