diff options
| author | Venkata(Muni) Anda <muni@nvidia.com> | 2010-01-11 21:45:52 -0800 |
|---|---|---|
| committer | Venkata(Muni) Anda <muni@nvidia.com> | 2010-01-12 18:02:57 -0800 |
| commit | bc462b6f0c864944aa8d9751206a1b353323ddcd (patch) | |
| tree | 6b83cbe359cac03d4794856eb9cc694702655869 /arch/arm/mach-tegra/pci-enum.c | |
| parent | c6acdf93b7ceb1dba5b365322bf56e52852082f3 (diff) | |
Tegra: Pcie driver update.
-Assign IO resources starting from 0x16 instead of 0. This is needed becase
the linux driver is assuming that "start" value of 0 is an allocated resource.
-Added asserts to catch config access other than byte/word/dword.
-Configuring interrupt as INTA to all the PCI devices.
With this change PCI driver is fully functional. Able to mount and see the
SATA drive.
Change-Id: I12a6017d0f304edf018bf54b518f5e40a95ab5eb
Diffstat (limited to 'arch/arm/mach-tegra/pci-enum.c')
| -rw-r--r-- | arch/arm/mach-tegra/pci-enum.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/arch/arm/mach-tegra/pci-enum.c b/arch/arm/mach-tegra/pci-enum.c index 1dab1de0a86d..4f8c614ff8fc 100644 --- a/arch/arm/mach-tegra/pci-enum.c +++ b/arch/arm/mach-tegra/pci-enum.c @@ -434,8 +434,8 @@ static void pci_tegra_setup_pci_bridge(struct pci_tegra_device *dev) reg |= PCI_COMMAND_SERR; pci_conf_write16(dev->bus, dev->devfn, PCI_COMMAND, reg); - /* FIXME how to handle interrutps */ - pci_conf_write8(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, 0x82); + pci_conf_write8(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, + tegra_get_module_inst_irq("pcie", 0, 0)); pci_conf_write8(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 0xa); } @@ -535,8 +535,9 @@ static void pci_tegra_setup_pci_device(struct pci_tegra_device *dev) reg |= PCI_COMMAND_SERR; pci_conf_write16(dev->bus, dev->devfn, PCI_COMMAND, reg); - /* FIXME how to handle interrutps */ - + pci_conf_write8(dev->bus, dev->devfn, PCI_INTERRUPT_LINE, + tegra_get_module_inst_irq("pcie", 0, 0)); + pci_conf_write8(dev->bus, dev->devfn, PCI_INTERRUPT_PIN, 0xa); } static void pci_tegra_print_device_tree(struct pci_tegra_device *dev) @@ -612,8 +613,12 @@ void pci_tegra_enumerate(void) /* Disable all execptions */ pci_tegra_afi_writel(0, AFI_FPCI_ERROR_MASKS_0); - /* Set the base and limits of the resources */ - pci_tegra_io_base = TEGRA_PCIE_BASE + PCIE_DOWNSTREAM_IO_OFFSET; + /* Set the base and limits for the resources */ + + /* Starting the IO offset from non-zero value as linux equating a value + * of 0 as unallocated resoruce and bailing out! + */ + pci_tegra_io_base = TEGRA_PCIE_BASE + PCIE_DOWNSTREAM_IO_OFFSET + 16; pci_tegra_io_limt = pci_tegra_io_base + PCIE_DOWNSTREAM_IO_SIZE; pci_tegra_mem_base = FPCI_NON_PREFETCH_MEMORY_OFFSET; |