diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc64/kernel/pci.c | 4 | ||||
| -rw-r--r-- | arch/sparc64/kernel/pci_sabre.c | 126 |
2 files changed, 85 insertions, 45 deletions
diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index c66c9bb..c2ff2de 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -165,16 +165,12 @@ void pci_config_write32(u32 *addr, u32 val) } /* Probe for all PCI controllers in the system. */ -extern void sabre_init(struct device_node *, const char *); extern void fire_pci_init(struct device_node *, const char *); static struct { char *model_name; void (*init)(struct device_node *, const char *); } pci_controller_table[] __initdata = { - { "SUNW,sabre", sabre_init }, - { "pci108e,a000", sabre_init }, - { "pci108e,a001", sabre_init }, { "pciex108e,80f0", fire_pci_init }, }; #define PCI_NUM_CONTROLLER_TYPES ARRAY_SIZE(pci_controller_table) diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c index ade5184..7cce4d8 100644 --- a/arch/sparc64/kernel/pci_sabre.c +++ b/arch/sparc64/kernel/pci_sabre.c @@ -16,13 +16,14 @@ #include <asm/apb.h> #include <asm/iommu.h> #include <asm/irq.h> -#include <asm/smp.h> -#include <asm/oplib.h> #include <asm/prom.h> #include "pci_impl.h" #include "iommu_common.h" +#define DRIVER_NAME "sabre" +#define PFX DRIVER_NAME ": " + /* All SABRE registers are 64-bits. The following accessor * routines are how they are accessed. The REG parameter * is a physical address. @@ -656,8 +657,8 @@ static void __init sabre_scan_bus(struct pci_pbm_info *pbm) * to live at bus 0. */ if (once != 0) { - prom_printf("SABRE: Multiple controllers unsupported.\n"); - prom_halt(); + printk(KERN_ERR PFX "Multiple controllers unsupported.\n"); + return; } once++; @@ -705,8 +706,10 @@ static int sabre_iommu_init(struct pci_pbm_info *pbm, */ err = iommu_table_init(iommu, tsbsize * 1024 * 8, dvma_offset, dma_mask, pbm->numa_node); - if (err) + if (err) { + printk(KERN_ERR PFX "iommu_table_init() failed\n"); return err; + } sabre_write(pbm->controller_regs + SABRE_IOMMU_TSBBASE, __pa(iommu->page_table)); @@ -722,9 +725,8 @@ static int sabre_iommu_init(struct pci_pbm_info *pbm, control |= SABRE_IOMMU_TSBSZ_128K; break; default: - prom_printf("iommu_init: Illegal TSB size %d\n", tsbsize); - prom_halt(); - break; + printk(KERN_ERR PFX "Illegal TSB size %d\n", tsbsize); + return -EINVAL; } sabre_write(pbm->controller_regs + SABRE_IOMMU_CONTROL, control); @@ -739,7 +741,6 @@ static void __init sabre_pbm_init(struct pci_controller_info *p, pbm->numa_node = -1; - pbm->scan_bus = sabre_scan_bus; pbm->pci_ops = &sun4u_pci_ops; pbm->config_space_reg_bits = 8; @@ -751,46 +752,49 @@ static void __init sabre_pbm_init(struct pci_controller_info *p, pci_get_pbm_props(pbm); pci_determine_mem_io_space(pbm); + + sabre_scan_bus(pbm); } -void __init sabre_init(struct device_node *dp, char *model_name) +static int __devinit sabre_probe(struct of_device *op, + const struct of_device_id *match) { const struct linux_prom64_registers *pr_regs; + struct device_node *dp = op->node; struct pci_controller_info *p; struct pci_pbm_info *pbm; + u32 upa_portid, dma_mask; struct iommu *iommu; - int tsbsize; + int tsbsize, err; const u32 *vdma; - u32 upa_portid, dma_mask; u64 clear_irq; - hummingbird_p = 0; - if (!strcmp(model_name, "pci108e,a001")) - hummingbird_p = 1; - else if (!strcmp(model_name, "SUNW,sabre")) { - const char *compat = of_get_property(dp, "compatible", NULL); - if (compat && !strcmp(compat, "pci108e,a001")) - hummingbird_p = 1; - if (!hummingbird_p) { - struct device_node *dp; - - /* Of course, Sun has to encode things a thousand - * different ways, inconsistently. - */ - for_each_node_by_type(dp, "cpu") { - if (!strcmp(dp->name, "SUNW,UltraSPARC-IIe")) - hummingbird_p = 1; - } + hummingbird_p = (match->data != NULL); + if (!hummingbird_p) { + struct device_node *cpu_dp; + + /* Of course, Sun has to encode things a thousand + * different ways, inconsistently. + */ + for_each_node_by_type(cpu_dp, "cpu") { + if (!strcmp(cpu_dp->name, "SUNW,UltraSPARC-IIe")) + hummingbird_p = 1; } } + err = -ENOMEM; p = kzalloc(sizeof(*p), GFP_ATOMIC); - if (!p) - goto fatal_memory_error; + if (!p) { + printk(KERN_ERR PFX "Cannot allocate controller info.\n"); + goto out_free; + } iommu = kzalloc(sizeof(*iommu), GFP_ATOMIC); - if (!iommu) - goto fatal_memory_error; + if (!iommu) { + printk(KERN_ERR PFX "Cannot allocate PBM iommu.\n"); + goto out_free; + } + pbm = &p->pbm_A; pbm->iommu = iommu; @@ -806,6 +810,11 @@ void __init sabre_init(struct device_node *dp, char *model_name) */ pr_regs = of_get_property(dp, "reg", NULL); + err = -ENODEV; + if (!pr_regs) { + printk(KERN_ERR PFX "No reg property\n"); + goto out_free; + } /* * First REG in property is base of entire SABRE register space. @@ -832,6 +841,10 @@ void __init sabre_init(struct device_node *dp, char *model_name) (pbm->controller_regs + SABRE_CONFIGSPACE); vdma = of_get_property(dp, "virtual-dma", NULL); + if (!vdma) { + printk(KERN_ERR PFX "No virtual-dma property\n"); + goto out_free; + } dma_mask = vdma[0]; switch(vdma[1]) { @@ -849,20 +862,51 @@ void __init sabre_init(struct device_node *dp, char *model_name) tsbsize = 128; break; default: - prom_printf("SABRE: strange virtual-dma size.\n"); - prom_halt(); + printk(KERN_ERR PFX "Strange virtual-dma size.\n"); + goto out_free; } - if (sabre_iommu_init(pbm, tsbsize, vdma[0], dma_mask)) - goto fatal_memory_error; + err = sabre_iommu_init(pbm, tsbsize, vdma[0], dma_mask); + if (err) + goto out_free; /* * Look for APB underneath. */ sabre_pbm_init(p, pbm, dp); - return; + return 0; -fatal_memory_error: - prom_printf("SABRE: Fatal memory allocation error.\n"); - prom_halt(); +out_free: + if (p) { + if (p->pbm_A.iommu) + kfree(p->pbm_A.iommu); + kfree(p); + } + return err; } + +static struct of_device_id sabre_match[] = { + { + .name = "pci", + .compatible = "pci108e,a001", + .data = (void *) 1, + }, + { + .name = "pci", + .compatible = "pci108e,a000", + }, + {}, +}; + +static struct of_platform_driver sabre_driver = { + .name = DRIVER_NAME, + .match_table = sabre_match, + .probe = sabre_probe, +}; + +static int __init sabre_init(void) +{ + return of_register_driver(&sabre_driver, &of_bus_type); +} + +subsys_initcall(sabre_init); |