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| author | Rob Herring <rob.herring@calxeda.com> | 2012-07-04 11:18:40 -0500 |
|---|---|---|
| committer | Rob Herring <rob.herring@calxeda.com> | 2012-07-26 09:10:04 -0500 |
| commit | dd9bf78040fa0da4cecc228e1682b9682b8cb180 (patch) | |
| tree | 9cf716530a0549fdac85b7b7b68badce122ce313 /arch/arm/plat-iop/pci.c | |
| parent | 0b9b18e0166d8925ed222335efbc3cfd66aa882f (diff) | |
| download | op-kernel-dev-dd9bf78040fa0da4cecc228e1682b9682b8cb180.zip op-kernel-dev-dd9bf78040fa0da4cecc228e1682b9682b8cb180.tar.gz | |
ARM: iop3xx: use fixed PCI i/o mapping
Move iop33x and iop32x PCI to fixed i/o mapping and remove io.h. This
changes the PCI bus addresses from the cpu address to 0 based. It appears
that there is translation h/w for this, but its untested.
Not sure what to do with io_offset. I think it should always be 0.
AFAICT, PCI setup is skipped if the ATU is already setup.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/arm/plat-iop/pci.c')
| -rw-r--r-- | arch/arm/plat-iop/pci.c | 25 |
1 files changed, 9 insertions, 16 deletions
diff --git a/arch/arm/plat-iop/pci.c b/arch/arm/plat-iop/pci.c index 8daae9b..362474b 100644 --- a/arch/arm/plat-iop/pci.c +++ b/arch/arm/plat-iop/pci.c @@ -192,30 +192,24 @@ int iop3xx_pci_setup(int nr, struct pci_sys_data *sys) if (nr != 0) return 0; - res = kzalloc(2 * sizeof(struct resource), GFP_KERNEL); + res = kzalloc(sizeof(struct resource), GFP_KERNEL); if (!res) panic("PCI: unable to alloc resources"); - res[0].start = IOP3XX_PCI_LOWER_IO_PA; - res[0].end = IOP3XX_PCI_LOWER_IO_PA + IOP3XX_PCI_IO_WINDOW_SIZE - 1; - res[0].name = "IOP3XX PCI I/O Space"; - res[0].flags = IORESOURCE_IO; - request_resource(&ioport_resource, &res[0]); - - res[1].start = IOP3XX_PCI_LOWER_MEM_PA; - res[1].end = IOP3XX_PCI_LOWER_MEM_PA + IOP3XX_PCI_MEM_WINDOW_SIZE - 1; - res[1].name = "IOP3XX PCI Memory Space"; - res[1].flags = IORESOURCE_MEM; - request_resource(&iomem_resource, &res[1]); + res->start = IOP3XX_PCI_LOWER_MEM_PA; + res->end = IOP3XX_PCI_LOWER_MEM_PA + IOP3XX_PCI_MEM_WINDOW_SIZE - 1; + res->name = "IOP3XX PCI Memory Space"; + res->flags = IORESOURCE_MEM; + request_resource(&iomem_resource, res); /* * Use whatever translation is already setup. */ sys->mem_offset = IOP3XX_PCI_LOWER_MEM_PA - *IOP3XX_OMWTVR0; - sys->io_offset = IOP3XX_PCI_LOWER_IO_PA - *IOP3XX_OIOWTVR; - pci_add_resource_offset(&sys->resources, &res[0], sys->io_offset); - pci_add_resource_offset(&sys->resources, &res[1], sys->mem_offset); + pci_add_resource_offset(&sys->resources, res, sys->mem_offset); + + pci_ioremap_io(0, IOP3XX_PCI_LOWER_IO_PA); return 1; } @@ -367,7 +361,6 @@ void __init iop3xx_pci_preinit_cond(void) void __init iop3xx_pci_preinit(void) { - pcibios_min_io = 0; pcibios_min_mem = 0; iop3xx_atu_disable(); |
