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-rw-r--r--arch/sparc/mm/io-unit.c29
-rw-r--r--arch/sparc/mm/iommu.c35
2 files changed, 35 insertions, 29 deletions
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index f167835db3d..1093514a577 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -34,13 +34,18 @@
#define IOPERM (IOUPTE_CACHE | IOUPTE_WRITE | IOUPTE_VALID)
#define MKIOPTE(phys) __iopte((((phys)>>4) & IOUPTE_PAGE) | IOPERM)
-void __init
-iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus)
+void __init iounit_init(struct sbus_bus *sbus)
{
- iopte_t *xpt, *xptend;
+ struct device_node *dp = sbus->ofdev.node;
struct iounit_struct *iounit;
- struct linux_prom_registers iommu_promregs[PROMREG_MAX];
- struct resource r;
+ iopte_t *xpt, *xptend;
+ struct of_device *op;
+
+ op = of_find_device_by_node(dp);
+ if (!op) {
+ prom_printf("SUN4D: Cannot find SBI of_device.\n");
+ prom_halt();
+ }
iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC);
if (!iounit) {
@@ -55,18 +60,14 @@ iounit_init(int sbi_node, int io_node, struct sbus_bus *sbus)
iounit->rotor[1] = IOUNIT_BMAP2_START;
iounit->rotor[2] = IOUNIT_BMAPM_START;
- xpt = NULL;
- if(prom_getproperty(sbi_node, "reg", (void *) iommu_promregs,
- sizeof(iommu_promregs)) != -1) {
- prom_apply_generic_ranges(io_node, 0, iommu_promregs, 3);
- memset(&r, 0, sizeof(r));
- r.flags = iommu_promregs[2].which_io;
- r.start = iommu_promregs[2].phys_addr;
- xpt = (iopte_t *) sbus_ioremap(&r, 0, PAGE_SIZE * 16, "XPT");
+ xpt = of_ioremap(&op->resource[2], 0, PAGE_SIZE * 16, "XPT");
+ if (!xpt) {
+ prom_printf("SUN4D: Cannot map External Page Table.");
+ prom_halt();
}
- if(!xpt) panic("Cannot map External Page Table.");
sbus->ofdev.dev.archdata.iommu = iounit;
+ op->dev.archdata.iommu = iounit;
iounit->page_table = xpt;
spin_lock_init(&iounit->lock);
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 4b934270f05..a86c9f552fa 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -55,30 +55,34 @@ static pgprot_t dvma_prot; /* Consistent mapping pte flags */
#define IOPERM (IOPTE_CACHE | IOPTE_WRITE | IOPTE_VALID)
#define MKIOPTE(pfn, perm) (((((pfn)<<8) & IOPTE_PAGE) | (perm)) & ~IOPTE_WAZ)
-void __init
-iommu_init(int iommund, struct sbus_bus *sbus)
+void __init iommu_init(struct device_node *parent, struct sbus_bus *sbus)
{
- unsigned int impl, vers;
- unsigned long tmp;
+ struct of_device *parent_op, *op;
struct iommu_struct *iommu;
- struct linux_prom_registers iommu_promregs[PROMREG_MAX];
- struct resource r;
+ unsigned int impl, vers;
unsigned long *bitmap;
+ unsigned long tmp;
+
+ parent_op = of_find_device_by_node(parent);
+ if (!parent_op) {
+ prom_printf("Unable to find IOMMU of_device\n");
+ prom_halt();
+ }
+
+ op = of_find_device_by_node(sbus->ofdev.node);
+ if (!op) {
+ prom_printf("Unable to find SBUS of_device\n");
+ prom_halt();
+ }
iommu = kmalloc(sizeof(struct iommu_struct), GFP_ATOMIC);
if (!iommu) {
prom_printf("Unable to allocate iommu structure\n");
prom_halt();
}
- iommu->regs = NULL;
- if (prom_getproperty(iommund, "reg", (void *) iommu_promregs,
- sizeof(iommu_promregs)) != -1) {
- memset(&r, 0, sizeof(r));
- r.flags = iommu_promregs[0].which_io;
- r.start = iommu_promregs[0].phys_addr;
- iommu->regs = (struct iommu_regs *)
- sbus_ioremap(&r, 0, PAGE_SIZE * 3, "iommu_regs");
- }
+
+ iommu->regs = of_ioremap(&parent_op->resource[0], 0, PAGE_SIZE * 3,
+ "iommu_regs");
if (!iommu->regs) {
prom_printf("Cannot map IOMMU registers\n");
prom_halt();
@@ -133,6 +137,7 @@ iommu_init(int iommund, struct sbus_bus *sbus)
(int)(IOMMU_NPTES*sizeof(iopte_t)), (int)IOMMU_NPTES);
sbus->ofdev.dev.archdata.iommu = iommu;
+ op->dev.archdata.iommu = iommu;
}
/* This begs to be btfixup-ed by srmmu. */