sh: Kill off virt_to_bus()/bus_to_virt().

Wire up ARCH_NO_VIRT_TO_BUS, and kill off the remaining users. The
dma-mapping code really wanted virt_to_phys()/phys_to_virt() anyways,
there are no inherently special bus addresses.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

4 files changed, 9 insertions, 10 deletions

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 0a631d0f75f1..ec2beabb193c 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -90,6 +90,9 @@ config ARCH_HAS_ILOG2_U64
         bool
         default n
 
+config ARCH_NO_VIRT_TO_BUS
+        def_bool y
+
 source "init/Kconfig"
 
 menu "System type"
diff --git a/include/asm-sh/dma-mapping.h b/include/asm-sh/dma-mapping.h
index d3bc7818bbbe..6f492ac3fa13 100644
--- a/include/asm-sh/dma-mapping.h
+++ b/include/asm-sh/dma-mapping.h
@@ -69,11 +69,11 @@ static inline dma_addr_t dma_map_single(struct device *dev,
 {
 #if defined(CONFIG_PCI) && !defined(CONFIG_SH_PCIDMA_NONCOHERENT)
         if (dev->bus == &pci_bus_type)
-                return virt_to_bus(ptr);
+                return virt_to_phys(ptr);
 #endif
         dma_cache_sync(dev, ptr, size, dir);
 
-        return virt_to_bus(ptr);
+        return virt_to_phys(ptr);
 }
 
 #define dma_unmap_single(dev, addr, size, dir)  do { } while (0)
@@ -116,7 +116,7 @@ static inline void dma_sync_single(struct device *dev, dma_addr_t dma_handle,
         if (dev->bus == &pci_bus_type)
                 return;
 #endif
-        dma_cache_sync(dev, bus_to_virt(dma_handle), size, dir);
+        dma_cache_sync(dev, phys_to_virt(dma_handle), size, dir);
 }
 
 static inline void dma_sync_single_range(struct device *dev,
@@ -128,7 +128,7 @@ static inline void dma_sync_single_range(struct device *dev,
         if (dev->bus == &pci_bus_type)
                 return;
 #endif
-        dma_cache_sync(dev, bus_to_virt(dma_handle) + offset, size, dir);
+        dma_cache_sync(dev, phys_to_virt(dma_handle) + offset, size, dir);
 }
 
 static inline void dma_sync_sg(struct device *dev, struct scatterlist *sg,
diff --git a/include/asm-sh/floppy.h b/include/asm-sh/floppy.h
index dc1ad464fa32..3b59b3af777b 100644
--- a/include/asm-sh/floppy.h
+++ b/include/asm-sh/floppy.h
@@ -181,7 +181,7 @@ static void _fd_chose_dma_mode(char *addr, unsigned long size)
 {
         if(can_use_virtual_dma == 2) {
                 if((unsigned int) addr >= (unsigned int) high_memory ||
-                   virt_to_bus(addr) >= 0x10000000)
+                   virt_to_phys(addr) >= 0x10000000)
                         use_virtual_dma = 1;
                 else
                         use_virtual_dma = 0;
@@ -219,7 +219,7 @@ static int hard_dma_setup(char *addr, unsigned long size, int mode, int io)
         doing_pdma = 0;
         clear_dma_ff(FLOPPY_DMA);
         set_dma_mode(FLOPPY_DMA,mode);
-        set_dma_addr(FLOPPY_DMA,virt_to_bus(addr));
+        set_dma_addr(FLOPPY_DMA,virt_to_phys(addr));
         set_dma_count(FLOPPY_DMA,size);
         enable_dma(FLOPPY_DMA);
         return 0;
diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h
index aa80930ce8e4..e6a1877dcb20 100644
--- a/include/asm-sh/io.h
+++ b/include/asm-sh/io.h
@@ -241,10 +241,6 @@ static inline void *phys_to_virt(unsigned long address)
 #define virt_to_phys(address)   ((unsigned long)(address))
 #endif
 
-#define virt_to_bus virt_to_phys
-#define bus_to_virt phys_to_virt
-#define page_to_bus page_to_phys
-
 /*
  * readX/writeX() are used to access memory mapped devices. On some
  * architectures the memory mapped IO stuff needs to be accessed