diff options
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/ioport.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 00cf41182912..ae4c667c906f 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -39,6 +39,8 @@ #include <asm/io.h> #include <asm/vaddrs.h> #include <asm/oplib.h> +#include <asm/prom.h> +#include <asm/sbus.h> #include <asm/page.h> #include <asm/pgalloc.h> #include <asm/dma.h> @@ -458,6 +460,89 @@ void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev, struct scatterlist *sg, { printk("sbus_dma_sync_sg_for_device: not implemented yet\n"); } + +/* Support code for sbus_init(). */ +/* + * XXX This functions appears to be a distorted version of + * prom_sbus_ranges_init(), with all sun4d stuff cut away. + * Ask DaveM what is going on here, how is sun4d supposed to work... XXX + */ +/* added back sun4d patch from Thomas Bogendoerfer - should be OK (crn) */ +void __init sbus_arch_bus_ranges_init(struct device_node *pn, struct sbus_bus *sbus) +{ + int parent_node = pn->node; + + if (sparc_cpu_model == sun4d) { + struct linux_prom_ranges iounit_ranges[PROMREG_MAX]; + int num_iounit_ranges, len; + + len = prom_getproperty(parent_node, "ranges", + (char *) iounit_ranges, + sizeof (iounit_ranges)); + if (len != -1) { + num_iounit_ranges = + (len / sizeof(struct linux_prom_ranges)); + prom_adjust_ranges(sbus->sbus_ranges, + sbus->num_sbus_ranges, + iounit_ranges, num_iounit_ranges); + } + } +} + +void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp) +{ + struct device_node *parent = dp->parent; + + if (sparc_cpu_model != sun4d && + parent != NULL && + !strcmp(parent->name, "iommu")) { + extern void iommu_init(int iommu_node, struct sbus_bus *sbus); + + iommu_init(parent->node, sbus); + } + + if (sparc_cpu_model == sun4d) { + extern void iounit_init(int sbi_node, int iounit_node, + struct sbus_bus *sbus); + + iounit_init(dp->node, parent->node, sbus); + } +} + +void __init sbus_setup_arch_props(struct sbus_bus *sbus, struct device_node *dp) +{ + if (sparc_cpu_model == sun4d) { + struct device_node *parent = dp->parent; + + sbus->devid = of_getintprop_default(parent, "device-id", 0); + sbus->board = of_getintprop_default(parent, "board#", 0); + } +} + +int __init sbus_arch_preinit(void) +{ + extern void register_proc_sparc_ioport(void); + + register_proc_sparc_ioport(); + +#ifdef CONFIG_SUN4 + { + extern void sun4_dvma_init(void); + sun4_dvma_init(); + } + return 1; +#else + return 0; +#endif +} + +void __init sbus_arch_postinit(void) +{ + if (sparc_cpu_model == sun4d) { + extern void sun4d_init_sbi_irq(void); + sun4d_init_sbi_irq(); + } +} #endif /* CONFIG_SBUS */ #ifdef CONFIG_PCI |