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riscv: do not reimplement generic io functions

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RISC-V U-Boot reimplements the generic io functions from
asm-generic/io.h. Remove the redundant implementation and include the
generic io.h instead.

Signed-off-by: Lukas Auer <lukas.auer@aisec.fraunhofer.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Rick Chen <rick@andestech.com>
This commit is contained in:
Lukas Auer 2018-11-22 11:26:19 +01:00 committed by Andes
parent fc8c76f42e
commit f105d2efcb
1 changed files with 3 additions and 28 deletions
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31
arch/riscv/include/asm/io.h
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@ -17,16 +17,6 @@ static inline void sync(void)
{ {
} }
/*
* Given a physical address and a length, return a virtual address
* that can be used to access the memory range with the caching
* properties specified by "flags".
*/
#define MAP_NOCACHE (0)
#define MAP_WRCOMBINE (0)
#define MAP_WRBACK (0)
#define MAP_WRTHROUGH (0)
#ifdef CONFIG_ARCH_MAP_SYSMEM #ifdef CONFIG_ARCH_MAP_SYSMEM
static inline void *map_sysmem(phys_addr_t paddr, unsigned long len) static inline void *map_sysmem(phys_addr_t paddr, unsigned long len)
{ {
@ -49,24 +39,6 @@ static inline phys_addr_t map_to_sysmem(const void *ptr)
} }
#endif #endif
static inline void *
map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
{
return (void *)paddr;
}
/*
* Take down a mapping set up by map_physmem().
*/
static inline void unmap_physmem(void *vaddr, unsigned long flags)
{
}
static inline phys_addr_t virt_to_phys(void *vaddr)
{
return (phys_addr_t)(vaddr);
}
/* /*
* Generic virtual read/write. Note that we don't support half-word * Generic virtual read/write. Note that we don't support half-word
* read/writes. We define __arch_*[bl] here, and leave __arch_*w * read/writes. We define __arch_*[bl] here, and leave __arch_*w
@ -484,4 +456,7 @@ out:
#endif /* __mem_isa */ #endif /* __mem_isa */
#endif /* __KERNEL__ */ #endif /* __KERNEL__ */
#include <asm-generic/io.h>
#endif /* __ASM_RISCV_IO_H */ #endif /* __ASM_RISCV_IO_H */