1 files changed, 24 insertions, 21 deletions

diff --git a/arch/mips/alchemy/common/setup.c b/arch/mips/alchemy/common/setup.c
index 0f60efe0481e..c35b4f809d51 100644
--- a/arch/mips/alchemy/common/setup.c
+++ b/arch/mips/alchemy/common/setup.c
@@ -28,14 +28,29 @@
 #include <linux/init.h>
 #include <linux/ioport.h>
 #include <linux/mm.h>
+#include <linux/dma-map-ops.h> /* for dma_default_coherent */
 
-#include <asm/dma-coherence.h>
+#include <asm/bootinfo.h>
 #include <asm/mipsregs.h>
 
 #include <au1000.h>
 
-extern void __init board_setup(void);
-extern void __init alchemy_set_lpj(void);
+static bool alchemy_dma_coherent(void)
+{
+	switch (alchemy_get_cputype()) {
+	case ALCHEMY_CPU_AU1000:
+	case ALCHEMY_CPU_AU1500:
+	case ALCHEMY_CPU_AU1100:
+		return false;
+	case ALCHEMY_CPU_AU1200:
+		/* Au1200 AB USB does not support coherent memory */
+		if ((read_c0_prid() & PRID_REV_MASK) == 0)
+			return false;
+		return true;
+	default:
+		return true;
+	}
+}
 
 void __init plat_mem_setup(void)
 {
@@ -48,20 +63,7 @@ void __init plat_mem_setup(void)
 		/* Clear to obtain best system bus performance */
 		clear_c0_config(1 << 19); /* Clear Config[OD] */
 
-	hw_coherentio = 0;
-	coherentio = IO_COHERENCE_ENABLED;
-	switch (alchemy_get_cputype()) {
-	case ALCHEMY_CPU_AU1000:
-	case ALCHEMY_CPU_AU1500:
-	case ALCHEMY_CPU_AU1100:
-		coherentio = IO_COHERENCE_DISABLED;
-		break;
-	case ALCHEMY_CPU_AU1200:
-		/* Au1200 AB USB does not support coherent memory */
-		if (0 == (read_c0_prid() & PRID_REV_MASK))
-			coherentio = IO_COHERENCE_DISABLED;
-		break;
-	}
+	dma_default_coherent = alchemy_dma_coherent();
 
 	board_setup();	/* board specific setup */
 
@@ -92,12 +94,13 @@ phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
 	return phys_addr;
 }
 
-int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long vaddr,
-		unsigned long pfn, unsigned long size, pgprot_t prot)
+static inline unsigned long io_remap_pfn_range_pfn(unsigned long pfn,
+		unsigned long size)
 {
 	phys_addr_t phys_addr = fixup_bigphys_addr(pfn << PAGE_SHIFT, size);
 
-	return remap_pfn_range(vma, vaddr, phys_addr >> PAGE_SHIFT, size, prot);
+	return phys_addr >> PAGE_SHIFT;
 }
-EXPORT_SYMBOL(io_remap_pfn_range);
+EXPORT_SYMBOL(io_remap_pfn_range_pfn);
+
 #endif /* CONFIG_MIPS_FIXUP_BIGPHYS_ADDR */