powerpc/pasemi: Remove IOBMAP allocation from platform probe()

These days, memblocks is available later, so we can just allocate it
as part of iob_init.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

arch/powerpc/platforms/pasemi/iommu.c

@@ -202,6 +202,11 @@ int __init iob_init(struct device_node *dn)
 
 	pr_debug(" -> %s\n", __func__);
 
+	/* For 2G space, 8x64 pages (2^21 bytes) is max total l2 size */
+	iob_l2_base = (u32 *)__va(memblock_alloc_base(1UL<<21, 1UL<<21, 0x80000000));
+
+	printk(KERN_INFO "IOBMAP L2 allocated at: %p\n", iob_l2_base);
+
 	/* Allocate a spare page to map all invalid IOTLB pages. */
 	tmp = memblock_alloc(IOBMAP_PAGE_SIZE, IOBMAP_PAGE_SIZE);
 	if (!tmp)
@@ -260,13 +265,3 @@ void __init iommu_init_early_pasemi(void)
 	set_pci_dma_ops(&dma_iommu_ops);
 }
 
-void __init alloc_iobmap_l2(void)
-{
-#ifndef CONFIG_PPC_PASEMI_IOMMU
-	return;
-#endif
-	/* For 2G space, 8x64 pages (2^21 bytes) is max total l2 size */
-	iob_l2_base = (u32 *)__va(memblock_alloc_base(1UL<<21, 1UL<<21, 0x80000000));
-
-	printk(KERN_INFO "IOBMAP L2 allocated at: %p\n", iob_l2_base);
-}

arch/powerpc/platforms/pasemi/pasemi.h

@@ -8,7 +8,6 @@ extern void pas_pci_dma_dev_setup(struct pci_dev *dev);
 
 extern void __iomem *pasemi_pci_getcfgaddr(struct pci_dev *dev, int offset);
 
-extern void __init alloc_iobmap_l2(void);
 extern void __init pasemi_map_registers(void);
 
 /* Power savings modes, implemented in asm */

arch/powerpc/platforms/pasemi/setup.c

@@ -426,8 +426,6 @@ static int __init pas_probe(void)
 	    !of_flat_dt_is_compatible(root, "pasemi,pwrficient"))
 		return 0;
 
-	alloc_iobmap_l2();
-
 	return 1;
 }