diff options
Diffstat (limited to 'arch/powerpc/sysdev')
-rw-r--r-- | arch/powerpc/sysdev/fsl_pci.c | 102 | ||||
-rw-r--r-- | arch/powerpc/sysdev/fsl_pci.h | 15 |
2 files changed, 75 insertions, 42 deletions
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c index 23acaf4692d..2ff35765a6a 100644 --- a/arch/powerpc/sysdev/fsl_pci.c +++ b/arch/powerpc/sysdev/fsl_pci.c @@ -828,54 +828,78 @@ static const struct of_device_id pci_ids[] = { struct device_node *fsl_pci_primary; -void __devinit fsl_pci_init(void) +void fsl_pci_assign_primary(void) { - int ret; - struct device_node *node; - struct pci_controller *hose; - dma_addr_t max = 0xffffffff; + struct device_node *np; /* Callers can specify the primary bus using other means. */ - if (!fsl_pci_primary) { - /* If a PCI host bridge contains an ISA node, it's primary. */ - node = of_find_node_by_type(NULL, "isa"); - while ((fsl_pci_primary = of_get_parent(node))) { - of_node_put(node); - node = fsl_pci_primary; - - if (of_match_node(pci_ids, node)) - break; - } + if (fsl_pci_primary) + return; + + /* If a PCI host bridge contains an ISA node, it's primary. */ + np = of_find_node_by_type(NULL, "isa"); + while ((fsl_pci_primary = of_get_parent(np))) { + of_node_put(np); + np = fsl_pci_primary; + + if (of_match_node(pci_ids, np) && of_device_is_available(np)) + return; } - node = NULL; - for_each_node_by_type(node, "pci") { - if (of_match_node(pci_ids, node)) { - /* - * If there's no PCI host bridge with ISA, arbitrarily - * designate one as primary. This can go away once - * various bugs with primary-less systems are fixed. - */ - if (!fsl_pci_primary) - fsl_pci_primary = node; - - ret = fsl_add_bridge(node, fsl_pci_primary == node); - if (ret == 0) { - hose = pci_find_hose_for_OF_device(node); - max = min(max, hose->dma_window_base_cur + - hose->dma_window_size); - } + /* + * If there's no PCI host bridge with ISA, arbitrarily + * designate one as primary. This can go away once + * various bugs with primary-less systems are fixed. + */ + for_each_matching_node(np, pci_ids) { + if (of_device_is_available(np)) { + fsl_pci_primary = np; + of_node_put(np); + return; } } +} + +static int __devinit fsl_pci_probe(struct platform_device *pdev) +{ + int ret; + struct device_node *node; + struct pci_controller *hose; + + node = pdev->dev.of_node; + ret = fsl_add_bridge(node, fsl_pci_primary == node); #ifdef CONFIG_SWIOTLB - /* - * if we couldn't map all of DRAM via the dma windows - * we need SWIOTLB to handle buffers located outside of - * dma capable memory region - */ - if (memblock_end_of_DRAM() - 1 > max) - ppc_swiotlb_enable = 1; + if (ret == 0) { + hose = pci_find_hose_for_OF_device(pdev->dev.of_node); + + /* + * if we couldn't map all of DRAM via the dma windows + * we need SWIOTLB to handle buffers located outside of + * dma capable memory region + */ + if (memblock_end_of_DRAM() - 1 > hose->dma_window_base_cur + + hose->dma_window_size) + ppc_swiotlb_enable = 1; + } #endif + + mpc85xx_pci_err_probe(pdev); + + return 0; +} + +static struct platform_driver fsl_pci_driver = { + .driver = { + .name = "fsl-pci", + .of_match_table = pci_ids, + }, + .probe = fsl_pci_probe, +}; + +static int __init fsl_pci_init(void) +{ + return platform_driver_register(&fsl_pci_driver); } +arch_initcall(fsl_pci_init); #endif diff --git a/arch/powerpc/sysdev/fsl_pci.h b/arch/powerpc/sysdev/fsl_pci.h index 54ed82c5323..d078537adec 100644 --- a/arch/powerpc/sysdev/fsl_pci.h +++ b/arch/powerpc/sysdev/fsl_pci.h @@ -98,10 +98,19 @@ u64 fsl_pci_immrbar_base(struct pci_controller *hose); extern struct device_node *fsl_pci_primary; -#ifdef CONFIG_FSL_PCI -void fsl_pci_init(void); +#ifdef CONFIG_PCI +void fsl_pci_assign_primary(void); #else -static inline void fsl_pci_init(void) {} +static inline void fsl_pci_assign_primary(void) {} +#endif + +#ifdef CONFIG_EDAC_MPC85XX +int mpc85xx_pci_err_probe(struct platform_device *op); +#else +static inline int mpc85xx_pci_err_probe(struct platform_device *op) +{ + return -ENOTSUPP; +} #endif #endif /* __POWERPC_FSL_PCI_H */ |