path: root/arch/nds32
diff options
authorChristoph Hellwig <>2019-08-11 14:53:20 +0200
committerChristoph Hellwig <>2019-11-11 21:18:19 +0100
commit97c9801a15e5b0c9a20e495b2ccabf010894e74b (patch)
tree9c5e1f7c2b7d399de0493f9af5433f2e6b51381a /arch/nds32
parente97133959ad2942ae43c81a08858bef01bc0ec18 (diff)
asm-generic: don't provide ioremap for CONFIG_MMU
All MMU-enabled ports have a non-trivial ioremap and should thus provide the prototype for their implementation instead of providing a generic one unless a different symbol is not defined. Note that this only affects sparc32 nds32 as all others do provide their own version. Also update the kerneldoc comments in asm-generic/io.h to explain the situation around the default ioremap* implementations correctly. Signed-off-by: Christoph Hellwig <> Reviewed-by: Arnd Bergmann <>
Diffstat (limited to 'arch/nds32')
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h
index 16f262322b8f..fb0e8a24c7af 100644
--- a/arch/nds32/include/asm/io.h
+++ b/arch/nds32/include/asm/io.h
@@ -6,6 +6,7 @@
#include <linux/types.h>
+void __iomem *ioremap(phys_addr_t phys_addr, size_t size);
extern void iounmap(volatile void __iomem *addr);
#define __raw_writeb __raw_writeb
static inline void __raw_writeb(u8 val, volatile void __iomem *addr)
@@ -80,4 +81,5 @@ static inline u32 __raw_readl(const volatile void __iomem *addr)
#define writew(v,c) ({ __iowmb(); writew_relaxed((v),(c)); })
#define writel(v,c) ({ __iowmb(); writel_relaxed((v),(c)); })
#include <asm-generic/io.h>
#endif /* __ASM_NDS32_IO_H */