unicore32: replace unicore32-specific iomap functions with generic lib implementation

1. define and enable CONFIG_GENERIC_IOMAP
2. define unicore32-specific PCI_IOBASE for asm-generic/io.h
3. define HAVE_ARCH_PIO_SIZE and unicore32-specific PIO_* macros
4. remove all unicore32-specific iomap functions

Signed-off-by: Guan Xuetao <gxt@mprc.pku.edu.cn>
Reviewed-and-Acked-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 6 insertions, 3 deletions

diff --git a/arch/unicore32/include/asm/io.h b/arch/unicore32/include/asm/io.h
index d73457c1800a..2483fcbadbe4 100644
--- a/arch/unicore32/include/asm/io.h
+++ b/arch/unicore32/include/asm/io.h
@@ -18,6 +18,7 @@
 #include <asm/memory.h>
 #include <asm/system.h>
 
+#define PCI_IOBASE      io_p2v(PKUNITY_PCILIO_BASE)
 #include <asm-generic/io.h>
 
 /*
@@ -38,9 +39,6 @@ extern void __uc32_iounmap(volatile void __iomem *addr);
 #define ioremap_cached(cookie, size)    __uc32_ioremap_cached(cookie, size)
 #define iounmap(cookie)                 __uc32_iounmap(cookie)
 
-extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
-extern void ioport_unmap(void __iomem *addr);
-
 /*
  * Convert a physical pointer to a virtual kernel pointer for /dev/mem
  * access
@@ -48,5 +46,10 @@ extern void ioport_unmap(void __iomem *addr);
 #undef xlate_dev_mem_ptr
 #define xlate_dev_mem_ptr(p)    __va(p)
 
+#define HAVE_ARCH_PIO_SIZE
+#define PIO_OFFSET              (unsigned int)(PCI_IOBASE)
+#define PIO_MASK                (unsigned int)(IO_SPACE_LIMIT)
+#define PIO_RESERVED            (PIO_OFFSET + PIO_MASK + 1)
+
 #endif  /* __KERNEL__ */
 #endif  /* __UNICORE_IO_H__ */